[lldb-dev] [Lldb-commits] [lldb] r277011 - Clean up vestigial remnants of locking primitives

Todd Fiala via lldb-dev lldb-dev at lists.llvm.org
Thu Jul 28 10:52:34 PDT 2016


clang: error: no such file or directory: '/Volumes/Data/src/
lldb-llvm.org/lldb/source/Host/common/Condition.cpp'

clang: error: no input files


$ find . -name Condition.cpp

$

On Thu, Jul 28, 2016 at 10:49 AM, Todd Fiala <todd.fiala at gmail.com> wrote:

> Hi Saleem,
>
> It looks like you're missing Condition.cpp from your checkin @277011?  Can
> you add it?
>
> -Todd
>
> On Thu, Jul 28, 2016 at 10:32 AM, Saleem Abdulrasool via lldb-commits <
> lldb-commits at lists.llvm.org> wrote:
>
>> Author: compnerd
>> Date: Thu Jul 28 12:32:20 2016
>> New Revision: 277011
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=277011&view=rev
>> Log:
>> Clean up vestigial remnants of locking primitives
>>
>> This finally removes the use of the Mutex and Condition classes. This is
>> an
>> intricate patch as the Mutex and Condition classes were tied together.
>> Furthermore, many places had slightly differing uses of time values.
>> Convert
>> timeout values to relative everywhere to permit the use of
>> std::chrono::duration, which is required for the use of
>> std::condition_variable's timeout. Adjust all Condition and related Mutex
>> classes over to std::{,recursive_}mutex and std::condition_variable.
>>
>> This change primarily comes at the cost of breaking the TracingMutex
>> which was
>> based around the Mutex class. It would be possible to write a wrapper to
>> provide similar functionality, but that is beyond the scope of this
>> change.
>>
>> Removed:
>>     lldb/trunk/include/lldb/Host/Condition.h
>>     lldb/trunk/include/lldb/Host/Mutex.h
>>     lldb/trunk/source/Host/common/Condition.cpp
>>     lldb/trunk/source/Host/common/Mutex.cpp
>>     lldb/trunk/source/Host/windows/Condition.cpp
>>     lldb/trunk/source/Host/windows/Mutex.cpp
>> Modified:
>>     lldb/trunk/include/lldb/Core/Event.h
>>     lldb/trunk/include/lldb/Core/Listener.h
>>     lldb/trunk/include/lldb/Core/ThreadSafeDenseMap.h
>>     lldb/trunk/include/lldb/Core/ThreadSafeDenseSet.h
>>     lldb/trunk/include/lldb/Host/Editline.h
>>     lldb/trunk/include/lldb/Host/Predicate.h
>>     lldb/trunk/include/lldb/Host/ProcessRunLock.h
>>     lldb/trunk/include/lldb/Target/Process.h
>>     lldb/trunk/source/API/SBListener.cpp
>>     lldb/trunk/source/Core/Communication.cpp
>>     lldb/trunk/source/Core/Debugger.cpp
>>     lldb/trunk/source/Core/Listener.cpp
>>     lldb/trunk/source/Host/CMakeLists.txt
>>     lldb/trunk/source/Host/common/Host.cpp
>>     lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
>>
>> lldb/trunk/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
>>     lldb/trunk/source/Plugins/Platform/Linux/PlatformLinux.cpp
>>     lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp
>>     lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h
>>     lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
>>
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
>>     lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
>>
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
>>
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
>>
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
>>     lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
>>     lldb/trunk/source/Target/Process.cpp
>>     lldb/trunk/source/Target/Target.cpp
>>
>> Modified: lldb/trunk/include/lldb/Core/Event.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/Event.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Core/Event.h (original)
>> +++ lldb/trunk/include/lldb/Core/Event.h Thu Jul 28 12:32:20 2016
>> @@ -12,6 +12,7 @@
>>
>>  // C Includes
>>  // C++ Includes
>> +#include <chrono>
>>  #include <memory>
>>  #include <string>
>>
>> @@ -141,7 +142,8 @@ public:
>>      }
>>
>>      bool
>> -    WaitForEventReceived (const TimeValue *abstime = nullptr, bool
>> *timed_out = nullptr)
>> +    WaitForEventReceived(const std::chrono::microseconds &abstime =
>> std::chrono::microseconds(0),
>> +                         bool *timed_out = nullptr)
>>      {
>>          return m_predicate.WaitForValueEqualTo(true, abstime, timed_out);
>>      }
>>
>> Modified: lldb/trunk/include/lldb/Core/Listener.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/Listener.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Core/Listener.h (original)
>> +++ lldb/trunk/include/lldb/Core/Listener.h Thu Jul 28 12:32:20 2016
>> @@ -12,6 +12,7 @@
>>
>>  // C Includes
>>  // C++ Includes
>> +#include <chrono>
>>  #include <list>
>>  #include <map>
>>  #include <mutex>
>> @@ -21,8 +22,6 @@
>>  // Other libraries and framework includes
>>  // Project includes
>>  #include "lldb/lldb-private.h"
>> -#include "lldb/Core/Broadcaster.h"
>> -#include "lldb/Host/Condition.h"
>>  #include "lldb/Core/Event.h"
>>
>>  namespace lldb_private {
>> @@ -87,19 +86,15 @@ public:
>>
>>      // Returns true if an event was received, false if we timed out.
>>      bool
>> -    WaitForEvent (const TimeValue *timeout,
>> -                  lldb::EventSP &event_sp);
>> +    WaitForEvent(const std::chrono::microseconds &timeout, lldb::EventSP
>> &event_sp);
>>
>>      bool
>> -    WaitForEventForBroadcaster (const TimeValue *timeout,
>> -                                Broadcaster *broadcaster,
>> -                                lldb::EventSP &event_sp);
>> +    WaitForEventForBroadcaster(const std::chrono::microseconds &timeout,
>> Broadcaster *broadcaster,
>> +                               lldb::EventSP &event_sp);
>>
>>      bool
>> -    WaitForEventForBroadcasterWithType (const TimeValue *timeout,
>> -                                        Broadcaster *broadcaster,
>> -                                        uint32_t event_type_mask,
>> -                                        lldb::EventSP &event_sp);
>> +    WaitForEventForBroadcasterWithType(const std::chrono::microseconds
>> &timeout, Broadcaster *broadcaster,
>> +                                       uint32_t event_type_mask,
>> lldb::EventSP &event_sp);
>>
>>      Event *
>>      PeekAtNextEvent ();
>> @@ -151,13 +146,10 @@ private:
>>      typedef std::vector<lldb::BroadcasterManagerWP>
>> broadcaster_manager_collection;
>>
>>      bool
>> -    FindNextEventInternal(Mutex::Locker& lock,
>> +    FindNextEventInternal(std::unique_lock<std::mutex> &lock,
>>                            Broadcaster *broadcaster,   // nullptr for any
>> broadcaster
>>                            const ConstString *sources, // nullptr for any
>> event
>> -                          uint32_t num_sources,
>> -                          uint32_t event_type_mask,
>> -                          lldb::EventSP &event_sp,
>> -                          bool remove);
>> +                          uint32_t num_sources, uint32_t
>> event_type_mask, lldb::EventSP &event_sp, bool remove);
>>
>>      bool
>>      GetNextEventInternal(Broadcaster *broadcaster,   // nullptr for any
>> broadcaster
>> @@ -167,19 +159,17 @@ private:
>>                           lldb::EventSP &event_sp);
>>
>>      bool
>> -    WaitForEventsInternal(const TimeValue *timeout,
>> +    WaitForEventsInternal(const std::chrono::microseconds &timeout,
>>                            Broadcaster *broadcaster,   // nullptr for any
>> broadcaster
>>                            const ConstString *sources, // nullptr for any
>> event
>> -                          uint32_t num_sources,
>> -                          uint32_t event_type_mask,
>> -                          lldb::EventSP &event_sp);
>> +                          uint32_t num_sources, uint32_t
>> event_type_mask, lldb::EventSP &event_sp);
>>
>>      std::string m_name;
>>      broadcaster_collection m_broadcasters;
>>      std::recursive_mutex m_broadcasters_mutex; // Protects m_broadcasters
>>      event_collection m_events;
>> -    Mutex m_events_mutex; // Protects m_broadcasters and m_events
>> -    Condition m_events_condition;
>> +    std::mutex m_events_mutex; // Protects m_broadcasters and m_events
>> +    std::condition_variable m_events_condition;
>>      broadcaster_manager_collection m_broadcaster_managers;
>>
>>      void
>>
>> Modified: lldb/trunk/include/lldb/Core/ThreadSafeDenseMap.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/ThreadSafeDenseMap.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Core/ThreadSafeDenseMap.h (original)
>> +++ lldb/trunk/include/lldb/Core/ThreadSafeDenseMap.h Thu Jul 28 12:32:20
>> 2016
>> @@ -12,46 +12,41 @@
>>
>>  // C Includes
>>  // C++ Includes
>> +#include <mutex>
>>
>>  // Other libraries and framework includes
>>  #include "llvm/ADT/DenseMap.h"
>>
>>  // Project includes
>> -#include "lldb/Host/Mutex.h"
>>
>>  namespace lldb_private {
>>
>> -template <typename _KeyType, typename _ValueType>
>> +template <typename _KeyType, typename _ValueType, typename _MutexType =
>> std::mutex>
>>  class ThreadSafeDenseMap
>>  {
>>  public:
>>      typedef llvm::DenseMap<_KeyType,_ValueType> LLVMMapType;
>> -
>> -    ThreadSafeDenseMap(unsigned map_initial_capacity = 0,
>> -                       Mutex::Type mutex_type = Mutex::eMutexTypeNormal)
>> :
>> -        m_map(map_initial_capacity),
>> -        m_mutex(mutex_type)
>> -    {
>> -    }
>> -
>> +
>> +    ThreadSafeDenseMap(unsigned map_initial_capacity = 0) :
>> m_map(map_initial_capacity), m_mutex() {}
>> +
>>      void
>>      Insert (_KeyType k, _ValueType v)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>>          m_map.insert(std::make_pair(k,v));
>>      }
>>
>>      void
>>      Erase (_KeyType k)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>>          m_map.erase(k);
>>      }
>>
>>      _ValueType
>>      Lookup (_KeyType k)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>>          return m_map.lookup(k);
>>      }
>>
>> @@ -59,7 +54,7 @@ public:
>>      Lookup (_KeyType k,
>>              _ValueType& v)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>>          auto iter = m_map.find(k),
>>               end = m_map.end();
>>          if (iter == end)
>> @@ -71,13 +66,13 @@ public:
>>      void
>>      Clear ()
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>>          m_map.clear();
>>      }
>>
>>  protected:
>>      LLVMMapType m_map;
>> -    Mutex m_mutex;
>> +    _MutexType m_mutex;
>>  };
>>
>>  } // namespace lldb_private
>>
>> Modified: lldb/trunk/include/lldb/Core/ThreadSafeDenseSet.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Core/ThreadSafeDenseSet.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Core/ThreadSafeDenseSet.h (original)
>> +++ lldb/trunk/include/lldb/Core/ThreadSafeDenseSet.h Thu Jul 28 12:32:20
>> 2016
>> @@ -12,61 +12,56 @@
>>
>>  // C Includes
>>  // C++ Includes
>> +#include <mutex>
>>
>>  // Other libraries and framework includes
>>  #include "llvm/ADT/DenseSet.h"
>>
>>  // Project includes
>> -#include "lldb/Host/Mutex.h"
>>
>>  namespace lldb_private {
>> -
>> -    template <typename _ElementType>
>> -    class ThreadSafeDenseSet
>> +
>> +template <typename _ElementType, typename _MutexType = std::mutex>
>> +class ThreadSafeDenseSet
>> +{
>> +public:
>> +    typedef llvm::DenseSet<_ElementType> LLVMSetType;
>> +
>> +    ThreadSafeDenseSet(unsigned set_initial_capacity = 0) :
>> m_set(set_initial_capacity), m_mutex() {}
>> +
>> +    void
>> +    Insert(_ElementType e)
>>      {
>> -    public:
>> -        typedef llvm::DenseSet<_ElementType> LLVMSetType;
>> -
>> -        ThreadSafeDenseSet(unsigned set_initial_capacity = 0,
>> -                           Mutex::Type mutex_type =
>> Mutex::eMutexTypeNormal) :
>> -        m_set(set_initial_capacity),
>> -        m_mutex(mutex_type)
>> -        {
>> -        }
>> -
>> -        void
>> -        Insert (_ElementType e)
>> -        {
>> -            Mutex::Locker locker(m_mutex);
>> -            m_set.insert(e);
>> -        }
>> -
>> -        void
>> -        Erase (_ElementType e)
>> -        {
>> -            Mutex::Locker locker(m_mutex);
>> -            m_set.erase(e);
>> -        }
>> -
>> -        bool
>> -        Lookup (_ElementType e)
>> -        {
>> -            Mutex::Locker locker(m_mutex);
>> -            return (m_set.count(e) > 0);
>> -        }
>> -
>> -        void
>> -        Clear ()
>> -        {
>> -            Mutex::Locker locker(m_mutex);
>> -            m_set.clear();
>> -        }
>> -
>> -    protected:
>> -        LLVMSetType m_set;
>> -        Mutex m_mutex;
>> -    };
>> -
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>> +        m_set.insert(e);
>> +    }
>> +
>> +    void
>> +    Erase(_ElementType e)
>> +    {
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>> +        m_set.erase(e);
>> +    }
>> +
>> +    bool
>> +    Lookup(_ElementType e)
>> +    {
>> +        std::lock_guard<_MutexType> guard(m_mutex);
>> +        return (m_set.count(e) > 0);
>> +    }
>> +
>> +    void
>> +    Clear()
>> +    {
>> +        stds::lock_guard<_MutexType> guard(m_mutex);
>> +        m_set.clear();
>> +    }
>> +
>> +protected:
>> +    LLVMSetType m_set;
>> +    _MutexType m_mutex;
>> +};
>> +
>>  } // namespace lldb_private
>>
>>  #endif  // liblldb_ThreadSafeDenseSet_h_
>>
>> Removed: lldb/trunk/include/lldb/Host/Condition.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Host/Condition.h?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Host/Condition.h (original)
>> +++ lldb/trunk/include/lldb/Host/Condition.h (removed)
>> @@ -1,123 +0,0 @@
>> -//===-- Condition.h ---------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef liblldb_Condition_h_
>> -#define liblldb_Condition_h_
>> -
>> -// C Includes
>> -// C++ Includes
>> -// Other libraries and framework includes
>> -// Project includes
>> -#include "lldb/lldb-types.h"
>> -#include "lldb/Host/Mutex.h"
>> -
>> -namespace lldb_private {
>> -
>> -class TimeValue;
>> -
>> -//----------------------------------------------------------------------
>> -/// @class Condition Condition.h "lldb/Host/Condition.h"
>> -/// @brief A C++ wrapper class for pthread condition variables.
>> -///
>> -/// A class that wraps up a pthread condition (pthread_cond_t). The
>> -/// class will create a pthread condition when an instance is
>> -/// constructed, and destroy it when it is destructed. It also provides
>> -/// access to the standard pthread condition calls.
>> -//----------------------------------------------------------------------
>> -class Condition
>> -{
>> -public:
>> -    //------------------------------------------------------------------
>> -    /// Default constructor
>> -    ///
>> -    /// The default constructor will initialize a new pthread condition
>> -    /// and maintain the condition in the object state.
>> -    //------------------------------------------------------------------
>> -    Condition ();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Destructor
>> -    ///
>> -    /// Destroys the pthread condition that the object owns.
>> -    //------------------------------------------------------------------
>> -    ~Condition ();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Unblock all threads waiting for a condition variable
>> -    ///
>> -    /// @return
>> -    ///     The return value from \c pthread_cond_broadcast()
>> -    //------------------------------------------------------------------
>> -    int
>> -    Broadcast ();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Unblocks one thread waiting for the condition variable
>> -    ///
>> -    /// @return
>> -    ///     The return value from \c pthread_cond_signal()
>> -    //------------------------------------------------------------------
>> -    int
>> -    Signal ();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Wait for the condition variable to be signaled.
>> -    ///
>> -    /// The Wait() function atomically blocks the current thread
>> -    /// waiting on this object's condition variable, and unblocks
>> -    /// \a mutex. The waiting thread unblocks only after another thread
>> -    /// signals or broadcasts this object's condition variable.
>> -    ///
>> -    /// If \a abstime is non-nullptr, this function will return when the
>> -    /// system time reaches the time specified in \a abstime if the
>> -    /// condition variable doesn't get unblocked. If \a abstime is
>> nullptr
>> -    /// this function will wait for an infinite amount of time for the
>> -    /// condition variable to be unblocked.
>> -    ///
>> -    /// The current thread re-acquires the lock on \a mutex following
>> -    /// the wait.
>> -    ///
>> -    /// @param[in] mutex
>> -    ///     The mutex to use in the \c pthread_cond_timedwait() or
>> -    ///     \c pthread_cond_wait() calls.
>> -    ///
>> -    /// @param[in] abstime
>> -    ///     An absolute time at which to stop waiting if non-nullptr,
>> else
>> -    ///     wait an infinite amount of time for the condition variable
>> -    ///     toget signaled.
>> -    ///
>> -    /// @param[out] timed_out
>> -    ///     If not nullptr, will be set to true if the wait timed out,
>> and
>> -    //      false otherwise.
>> -    ///
>> -    /// @see Condition::Broadcast()
>> -    /// @see Condition::Signal()
>> -    //------------------------------------------------------------------
>> -    int
>> -    Wait(Mutex &mutex, const TimeValue *abstime = nullptr, bool
>> *timed_out = nullptr);
>> -
>> -protected:
>> -    //------------------------------------------------------------------
>> -    // Member variables
>> -    //------------------------------------------------------------------
>> -    lldb::condition_t m_condition; ///< The condition variable.
>> -
>> -    //------------------------------------------------------------------
>> -    /// Get accessor to the pthread condition object.
>> -    ///
>> -    /// @return
>> -    ///     A pointer to the condition variable owned by this object.
>> -    //------------------------------------------------------------------
>> -    lldb::condition_t *
>> -    GetCondition ();
>> -};
>> -
>> -} // namespace lldb_private
>> -
>> -#endif // liblldb_Condition_h_
>>
>> Modified: lldb/trunk/include/lldb/Host/Editline.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Host/Editline.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Host/Editline.h (original)
>> +++ lldb/trunk/include/lldb/Host/Editline.h Thu Jul 28 12:32:20 2016
>> @@ -54,7 +54,6 @@
>>  #include <string>
>>  #include <vector>
>>
>> -#include "lldb/Host/Condition.h"
>>  #include "lldb/Host/ConnectionFileDescriptor.h"
>>  #include "lldb/Host/FileSpec.h"
>>  #include "lldb/Host/Predicate.h"
>>
>> Removed: lldb/trunk/include/lldb/Host/Mutex.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Host/Mutex.h?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Host/Mutex.h (original)
>> +++ lldb/trunk/include/lldb/Host/Mutex.h (removed)
>> @@ -1,313 +0,0 @@
>> -//===-- Mutex.h -------------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef liblldb_Mutex_h_
>> -#define liblldb_Mutex_h_
>> -
>> -// C Includes
>> -// C++ Includes
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -#include <string>
>> -#endif
>> -
>> -// Other libraries and framework includes
>> -// Project includes
>> -#include "lldb/lldb-types.h"
>> -
>> -namespace lldb_private {
>> -
>> -//----------------------------------------------------------------------
>> -/// @class Mutex Mutex.h "lldb/Host/Mutex.h"
>> -/// @brief A C++ wrapper class for pthread mutexes.
>> -//----------------------------------------------------------------------
>> -class Mutex
>> -{
>> -public:
>> -    friend class Locker;
>> -    friend class Condition;
>> -
>> -    enum Type
>> -    {
>> -        eMutexTypeNormal,       ///< Mutex that can't recursively
>> entered by the same thread
>> -        eMutexTypeRecursive     ///< Mutex can be recursively entered by
>> the same thread
>> -    };
>> -
>> -    //------------------------------------------------------------------
>> -    /// @class Mutex::Locker
>> -    ///
>> -    /// A scoped locking class that allows a variety of pthread mutex
>> -    /// objects to have a mutex locked when an Mutex::Locker
>> -    /// object is created, and unlocked when it goes out of scope or
>> -    /// when the Mutex::Locker::Reset(pthread_mutex_t *)
>> -    /// is called. This provides an exception safe way to lock a mutex
>> -    /// in a scope.
>> -    //------------------------------------------------------------------
>> -    class Locker
>> -    {
>> -    public:
>> -        //--------------------------------------------------------------
>> -        /// Default constructor.
>> -        ///
>> -        /// This will create a scoped mutex locking object that doesn't
>> -        /// have a mutex to lock. One will need to be provided using the
>> -        /// Mutex::Locker::Reset(pthread_mutex_t *) method.
>> -        ///
>> -        /// @see Mutex::Locker::Reset(pthread_mutex_t *)
>> -        //--------------------------------------------------------------
>> -        Locker();
>> -
>> -        //--------------------------------------------------------------
>> -        /// Constructor with a Mutex object.
>> -        ///
>> -        /// This will create a scoped mutex locking object that extracts
>> -        /// the mutex owned by \a m and locks it.
>> -        ///
>> -        /// @param[in] m
>> -        ///     An instance of a Mutex object that contains a
>> -        ///     valid mutex object.
>> -        //--------------------------------------------------------------
>> -        Locker(Mutex& m);
>> -
>> -        //--------------------------------------------------------------
>> -        /// Constructor with a Mutex object pointer.
>> -        ///
>> -        /// This will create a scoped mutex locking object that extracts
>> -        /// the mutex owned by a m and locks it.
>> -        ///
>> -        /// @param[in] m
>> -        ///     A pointer to instance of a Mutex object that
>> -        ///     contains a valid mutex object.
>> -        //--------------------------------------------------------------
>> -        Locker(Mutex* m);
>> -
>> -        //--------------------------------------------------------------
>> -        /// Destructor
>> -        ///
>> -        /// Unlocks any valid pthread_mutex_t that this object may
>> -        /// contain.
>> -        //--------------------------------------------------------------
>> -        ~Locker();
>> -
>> -        //--------------------------------------------------------------
>> -        /// Change the contained mutex.
>> -        ///
>> -        /// Unlock the current mutex in this object (if it contains a
>> -        /// valid mutex) and lock the new \a mutex object if it is
>> -        /// non-nullptr.
>> -        //--------------------------------------------------------------
>> -        void
>> -        Lock (Mutex &mutex);
>> -
>> -        void
>> -        Lock (Mutex *mutex)
>> -        {
>> -            if (mutex)
>> -                Lock(*mutex);
>> -        }
>> -
>> -        //--------------------------------------------------------------
>> -        /// Change the contained mutex only if the mutex can be locked.
>> -        ///
>> -        /// Unlock the current mutex in this object (if it contains a
>> -        /// valid mutex) and try to lock \a mutex. If \a mutex can be
>> -        /// locked this object will take ownership of the lock and will
>> -        /// unlock it when it goes out of scope or Reset or TryLock are
>> -        /// called again. If the mutex is already locked, this object
>> -        /// will not take ownership of the mutex.
>> -        ///
>> -        /// @return
>> -        ///     Returns \b true if the lock was acquired and the this
>> -        ///     object will unlock the mutex when it goes out of scope,
>> -        ///     returns \b false otherwise.
>> -        //--------------------------------------------------------------
>> -        bool
>> -        TryLock(Mutex &mutex, const char *failure_message = nullptr);
>> -
>> -        bool
>> -        TryLock(Mutex *mutex, const char *failure_message = nullptr)
>> -        {
>> -            if (mutex)
>> -                return TryLock(*mutex, failure_message);
>> -            else
>> -                return false;
>> -        }
>> -
>> -        void
>> -        Unlock ();
>> -
>> -    protected:
>> -        //--------------------------------------------------------------
>> -        /// Member variables
>> -        //--------------------------------------------------------------
>> -        Mutex *m_mutex_ptr;
>> -
>> -    private:
>> -        Locker(const Locker&);
>> -        const Locker& operator=(const Locker&);
>> -    };
>> -
>> -    //------------------------------------------------------------------
>> -    /// Default constructor.
>> -    ///
>> -    /// Creates a pthread mutex with no attributes.
>> -    //------------------------------------------------------------------
>> -    Mutex();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Default constructor.
>> -    ///
>> -    /// Creates a pthread mutex with \a type as the mutex type.
>> -    /// Valid values for \a type include:
>> -    ///     @li Mutex::Type::eMutexTypeNormal
>> -    ///     @li Mutex::Type::eMutexTypeRecursive
>> -    ///
>> -    /// @param[in] type
>> -    ///     The type of the mutex.
>> -    ///
>> -    /// @see ::pthread_mutexattr_settype()
>> -    //------------------------------------------------------------------
>> -    Mutex(Mutex::Type type);
>> -
>> -    //------------------------------------------------------------------
>> -    /// Destructor.
>> -    ///
>> -    /// Destroys the mutex owned by this object.
>> -    //------------------------------------------------------------------
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -    virtual
>> -#endif
>> -    ~Mutex();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Lock the mutex.
>> -    ///
>> -    /// Locks the mutex owned by this object. If the mutex is already
>> -    /// locked, the calling thread will block until the mutex becomes
>> -    /// available.
>> -    ///
>> -    /// @return
>> -    ///     The error code from \c pthread_mutex_lock().
>> -    //------------------------------------------------------------------
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -    virtual
>> -#endif
>> -    int
>> -    Lock();
>> -
>> -    //------------------------------------------------------------------
>> -    /// Try to lock the mutex.
>> -    ///
>> -    /// Attempts to lock the mutex owned by this object without blocking.
>> -    /// If the mutex is already locked, TryLock() will not block waiting
>> -    /// for the mutex, but will return an error condition.
>> -    ///
>> -    /// @return
>> -    ///     The error code from \c pthread_mutex_trylock().
>> -    //------------------------------------------------------------------
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -    virtual
>> -#endif
>> -    int
>> -    TryLock(const char *failure_message = nullptr);
>> -
>> -    //------------------------------------------------------------------
>> -    /// Unlock the mutex.
>> -    ///
>> -    /// If the current thread holds the lock on the owned mutex, then
>> -    /// Unlock() will unlock the mutex. Calling Unlock() on this object
>> -    /// when the calling thread does not hold the lock will result in
>> -    /// undefined behavior.
>> -    ///
>> -    /// @return
>> -    ///     The error code from \c pthread_mutex_unlock().
>> -    //------------------------------------------------------------------
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -    virtual
>> -#endif
>> -    int
>> -    Unlock();
>> -
>> -protected:
>> -    //------------------------------------------------------------------
>> -    // Member variables
>> -    //------------------------------------------------------------------
>> -    // TODO: Hide the mutex in the implementation file in case we ever
>> need to port to an
>> -    // architecture that doesn't have pthread mutexes.
>> -    lldb::mutex_t m_mutex; ///< The OS mutex object.
>> -
>> -private:
>> -    //------------------------------------------------------------------
>> -    /// Mutex get accessor.
>> -    ///
>> -    /// @return
>> -    ///     A pointer to the pthread mutex object owned by this object.
>> -    //------------------------------------------------------------------
>> -    lldb::mutex_t *
>> -    GetMutex();
>> -
>> -    Mutex(const Mutex&);
>> -    const Mutex& operator=(const Mutex&);
>> -};
>> -
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -class TrackingMutex : public Mutex
>> -{
>> -public:
>> -    TrackingMutex() : Mutex()  {}
>> -    TrackingMutex(Mutex::Type type) : Mutex (type) {}
>> -
>> -    virtual
>> -    ~TrackingMutex() = default;
>> -
>> -    virtual int
>> -    Unlock ();
>> -
>> -    virtual int
>> -    TryLock(const char *failure_message = nullptr)
>> -    {
>> -        int return_value = Mutex::TryLock();
>> -        if (return_value != 0 && failure_message != nullptr)
>> -        {
>> -            m_failure_message.assign(failure_message);
>> -            m_thread_that_tried = pthread_self();
>> -        }
>> -        return return_value;
>> -    }
>> -
>> -protected:
>> -    pthread_t m_thread_that_tried;
>> -    std::string m_failure_message;
>> -};
>> -
>> -class LoggingMutex : public Mutex
>> -{
>> -public:
>> -    LoggingMutex() : Mutex(),m_locked(false)  {}
>> -    LoggingMutex(Mutex::Type type) : Mutex (type),m_locked(false) {}
>> -
>> -    virtual
>> -    ~LoggingMutex() = default;
>> -
>> -    virtual int
>> -    Lock ();
>> -
>> -    virtual int
>> -    Unlock ();
>> -
>> -    virtual int
>> -    TryLock(const char *failure_message = nullptr);
>> -
>> -protected:
>> -    bool m_locked;
>> -};
>> -#endif // LLDB_CONFIGURATION_DEBUG
>> -
>> -} // namespace lldb_private
>> -
>> -#endif // liblldb_Mutex_h_
>>
>> Modified: lldb/trunk/include/lldb/Host/Predicate.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Host/Predicate.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Host/Predicate.h (original)
>> +++ lldb/trunk/include/lldb/Host/Predicate.h Thu Jul 28 12:32:20 2016
>> @@ -15,11 +15,12 @@
>>  #include <time.h>
>>
>>  // C++ Includes
>> +#include <condition_variable>
>> +#include <mutex>
>> +
>>  // Other libraries and framework includes
>>  // Project includes
>>  #include "lldb/lldb-defines.h"
>> -#include "lldb/Host/Mutex.h"
>> -#include "lldb/Host/Condition.h"
>>
>>  //#define DB_PTHREAD_LOG_EVENTS
>>
>> @@ -97,7 +98,7 @@ public:
>>      T
>>      GetValue () const
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<std::mutex> guard(m_mutex);
>>          T value = m_value;
>>          return value;
>>      }
>> @@ -120,7 +121,7 @@ public:
>>      void
>>      SetValue (T value, PredicateBroadcastType broadcast_type)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<std::mutex> guard(m_mutex);
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>>          printf("%s (value = 0x%8.8x, broadcast_type = %i)\n",
>> __FUNCTION__, value, broadcast_type);
>>  #endif
>> @@ -148,7 +149,7 @@ public:
>>      void
>>      SetValueBits (T bits, PredicateBroadcastType broadcast_type)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<std::mutex> guard(m_mutex);
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>>          printf("%s (bits = 0x%8.8x, broadcast_type = %i)\n",
>> __FUNCTION__, bits, broadcast_type);
>>  #endif
>> @@ -176,7 +177,7 @@ public:
>>      void
>>      ResetValueBits (T bits, PredicateBroadcastType broadcast_type)
>>      {
>> -        Mutex::Locker locker(m_mutex);
>> +        std::lock_guard<std::mutex> guard(m_mutex);
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>>          printf("%s (bits = 0x%8.8x, broadcast_type = %i)\n",
>> __FUNCTION__, bits, broadcast_type);
>>  #endif
>> @@ -213,21 +214,30 @@ public:
>>      ///     occurred.
>>      //------------------------------------------------------------------
>>      T
>> -    WaitForSetValueBits(T bits, const TimeValue *abstime = nullptr)
>> +    WaitForSetValueBits(T bits, const std::chrono::microseconds &timeout
>> = std::chrono::microseconds(0))
>>      {
>> -        int err = 0;
>>          // pthread_cond_timedwait() or pthread_cond_wait() will
>> atomically
>>          // unlock the mutex and wait for the condition to be set. When
>> either
>>          // function returns, they will re-lock the mutex. We use an auto
>> lock/unlock
>> -        // class (Mutex::Locker) to allow us to return at any point in
>> this
>> +        // class (std::lock_guard) to allow us to return at any point in
>> this
>>          // function and not have to worry about unlocking the mutex.
>> -        Mutex::Locker locker(m_mutex);
>> +        std::unique_lock<std::mutex> lock(m_mutex);
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> -        printf("%s (bits = 0x%8.8x, abstime = %p), m_value = 0x%8.8x\n",
>> __FUNCTION__, bits, abstime, m_value);
>> +        printf("%s (bits = 0x%8.8x, timeout = %llu), m_value =
>> 0x%8.8x\n", __FUNCTION__, bits, timeout.count(),
>> +               m_value);
>>  #endif
>> -        while (err == 0 && ((m_value & bits) == 0))
>> +        while ((m_value & bits) == 0)
>>          {
>> -            err = m_condition.Wait (m_mutex, abstime);
>> +            if (timeout == std::chrono::microseconds(0))
>> +            {
>> +                m_condition.wait(lock);
>> +            }
>> +            else
>> +            {
>> +                std::cv_status result = m_condition.wait_for(lock,
>> timeout);
>> +                if (result == std::cv_status::timeout)
>> +                    break;
>> +            }
>>          }
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>>          printf("%s (bits = 0x%8.8x), m_value = 0x%8.8x, returning
>> 0x%8.8x\n", __FUNCTION__, bits, m_value, m_value & bits);
>> @@ -262,23 +272,31 @@ public:
>>      ///     unrecoverable error occurs.
>>      //------------------------------------------------------------------
>>      T
>> -    WaitForResetValueBits(T bits, const TimeValue *abstime = nullptr)
>> +    WaitForResetValueBits(T bits, const std::chrono::microseconds
>> &timeout = std::chrono::microseconds(0))
>>      {
>> -        int err = 0;
>> -
>>          // pthread_cond_timedwait() or pthread_cond_wait() will
>> atomically
>>          // unlock the mutex and wait for the condition to be set. When
>> either
>>          // function returns, they will re-lock the mutex. We use an auto
>> lock/unlock
>> -        // class (Mutex::Locker) to allow us to return at any point in
>> this
>> +        // class (std::lock_guard) to allow us to return at any point in
>> this
>>          // function and not have to worry about unlocking the mutex.
>> -        Mutex::Locker locker(m_mutex);
>> +        std::unique_lock<std::mutex> lock(m_mutex);
>>
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> -        printf("%s (bits = 0x%8.8x, abstime = %p), m_value = 0x%8.8x\n",
>> __FUNCTION__, bits, abstime, m_value);
>> +        printf("%s (bits = 0x%8.8x, timeout = %llu), m_value =
>> 0x%8.8x\n", __FUNCTION__, bits, timeout.count(),
>> +               m_value);
>>  #endif
>> -        while (err == 0 && ((m_value & bits) != 0))
>> +        while ((m_value & bits) != 0)
>>          {
>> -            err = m_condition.Wait (m_mutex, abstime);
>> +            if (timeout == std::chrono::microseconds(0))
>> +            {
>> +                m_condition.wait(lock);
>> +            }
>> +            else
>> +            {
>> +                std::cv_status result = m_condition.wait_for(lock,
>> timeout);
>> +                if (result == std::cv_status::timeout)
>> +                    break;
>> +            }
>>          }
>>
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> @@ -317,25 +335,39 @@ public:
>>      ///     @li \b false otherwise
>>      //------------------------------------------------------------------
>>      bool
>> -    WaitForValueEqualTo(T value, const TimeValue *abstime = nullptr,
>> bool *timed_out = nullptr)
>> +    WaitForValueEqualTo(T value, const std::chrono::microseconds
>> &timeout = std::chrono::microseconds(0),
>> +                        bool *timed_out = nullptr)
>>      {
>> -        int err = 0;
>>          // pthread_cond_timedwait() or pthread_cond_wait() will
>> atomically
>>          // unlock the mutex and wait for the condition to be set. When
>> either
>>          // function returns, they will re-lock the mutex. We use an auto
>> lock/unlock
>> -        // class (Mutex::Locker) to allow us to return at any point in
>> this
>> +        // class (std::lock_guard) to allow us to return at any point in
>> this
>>          // function and not have to worry about unlocking the mutex.
>> -        Mutex::Locker locker(m_mutex);
>> +        std::unique_lock<std::mutex> lock(m_mutex);
>>
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> -        printf("%s (value = 0x%8.8x, abstime = %p), m_value =
>> 0x%8.8x\n", __FUNCTION__, value, abstime, m_value);
>> +        printf("%s (value = 0x%8.8x, timeout = %llu), m_value =
>> 0x%8.8x\n", __FUNCTION__, value, timeout.count(),
>> +               m_value);
>>  #endif
>>          if (timed_out)
>>              *timed_out = false;
>>
>> -        while (err == 0 && m_value != value)
>> +        while (m_value != value)
>>          {
>> -            err = m_condition.Wait (m_mutex, abstime, timed_out);
>> +            if (timeout == std::chrono::microseconds(0))
>> +            {
>> +                m_condition.wait(lock);
>> +            }
>> +            else
>> +            {
>> +                std::cv_status result = m_condition.wait_for(lock,
>> timeout);
>> +                if (result == std::cv_status::timeout)
>> +                {
>> +                    if (timed_out)
>> +                        *timed_out = true;
>> +                    break;
>> +                }
>> +            }
>>          }
>>
>>          return m_value == value;
>> @@ -378,26 +410,39 @@ public:
>>      //------------------------------------------------------------------
>>      bool
>>      WaitForValueEqualToAndSetValueTo(T wait_value, T new_value,
>> -                                     const TimeValue *abstime = nullptr,
>> +                                     const std::chrono::microseconds
>> &timeout = std::chrono::microseconds(0),
>>                                       bool *timed_out = nullptr)
>>      {
>> -        int err = 0;
>>          // pthread_cond_timedwait() or pthread_cond_wait() will
>> atomically
>>          // unlock the mutex and wait for the condition to be set. When
>> either
>>          // function returns, they will re-lock the mutex. We use an auto
>> lock/unlock
>> -        // class (Mutex::Locker) to allow us to return at any point in
>> this
>> +        // class (std::lock_guard) to allow us to return at any point in
>> this
>>          // function and not have to worry about unlocking the mutex.
>> -        Mutex::Locker locker(m_mutex);
>> +        std::unique_lock<std::mutex> lock(m_mutex);
>>
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> -        printf("%s (wait_value = 0x%8.8x, new_value = 0x%8.8x, abstime =
>> %p), m_value = 0x%8.8x\n", __FUNCTION__, wait_value, new_value, abstime,
>> m_value);
>> +        printf("%s (wait_value = 0x%8.8x, new_value = 0x%8.8x, timeout =
>> %llu), m_value = 0x%8.8x\n", __FUNCTION__,
>> +               wait_value, new_value, timeout.count(), m_value);
>>  #endif
>>          if (timed_out)
>>              *timed_out = false;
>>
>> -        while (err == 0 && m_value != wait_value)
>> +        while (m_value != wait_value)
>>          {
>> -            err = m_condition.Wait (m_mutex, abstime, timed_out);
>> +            if (timeout == std::chrono::microseconds(0))
>> +            {
>> +                m_condition.wait(lock);
>> +            }
>> +            else
>> +            {
>> +                std::cv_status result = m_condition.wait_for(m_mutex,
>> timeout);
>> +                if (result == std::cv_status::timeout)
>> +                {
>> +                    if (timed_out)
>> +                        *timed_out = true;
>> +                    break;
>> +                }
>> +            }
>>          }
>>
>>          if (m_value == wait_value)
>> @@ -438,21 +483,31 @@ public:
>>      ///     @li \b false otherwise
>>      //------------------------------------------------------------------
>>      bool
>> -    WaitForValueNotEqualTo(T value, T &new_value, const TimeValue
>> *abstime = nullptr)
>> +    WaitForValueNotEqualTo(T value, T &new_value,
>> +                           const std::chrono::microseconds &timeout =
>> std::chrono::microseconds(0))
>>      {
>> -        int err = 0;
>>          // pthread_cond_timedwait() or pthread_cond_wait() will
>> atomically
>>          // unlock the mutex and wait for the condition to be set. When
>> either
>>          // function returns, they will re-lock the mutex. We use an auto
>> lock/unlock
>> -        // class (Mutex::Locker) to allow us to return at any point in
>> this
>> +        // class (std::lock_guard) to allow us to return at any point in
>> this
>>          // function and not have to worry about unlocking the mutex.
>> -        Mutex::Locker locker(m_mutex);
>> +        std::unique_lock<std::mutex> lock(m_mutex);
>>  #ifdef DB_PTHREAD_LOG_EVENTS
>> -        printf("%s (value = 0x%8.8x, abstime = %p), m_value =
>> 0x%8.8x\n", __FUNCTION__, value, abstime, m_value);
>> +        printf("%s (value = 0x%8.8x, timeout = %llu), m_value =
>> 0x%8.8x\n", __FUNCTION__, value, timeout.count(),
>> +               m_value);
>>  #endif
>> -        while (err == 0 && m_value == value)
>> +        while (m_value == value)
>>          {
>> -            err = m_condition.Wait (m_mutex, abstime);
>> +            if (timeout == std::chrono::microseconds(0))
>> +            {
>> +                m_condition.wait(lock);
>> +            }
>> +            else
>> +            {
>> +                std::cv_status result = m_condition.wait_for(lock,
>> timeout);
>> +                if (result == std::cv_status::timeout)
>> +                    break;
>> +            }
>>          }
>>
>>          if (m_value != value)
>> @@ -469,8 +524,9 @@ protected:
>>      // blocking between the main thread and the spotlight index thread.
>>
>>  //----------------------------------------------------------------------
>>      T           m_value;        ///< The templatized value T that we are
>> protecting access to
>> -    mutable Mutex m_mutex;      ///< The mutex to use when accessing the
>> data
>> -    Condition   m_condition;    ///< The pthread condition variable to
>> use for signaling that data available or changed.
>> +    mutable std::mutex m_mutex; ///< The mutex to use when accessing the
>> data
>> +    std::condition_variable
>> +        m_condition; ///< The pthread condition variable to use for
>> signaling that data available or changed.
>>
>>  private:
>>      //------------------------------------------------------------------
>> @@ -496,7 +552,7 @@ private:
>>          printf("%s (old_value = 0x%8.8x, broadcast_type = %i) m_value =
>> 0x%8.8x, broadcast = %u\n", __FUNCTION__, old_value, broadcast_type,
>> m_value, broadcast);
>>  #endif
>>          if (broadcast)
>> -            m_condition.Broadcast();
>> +            m_condition.notify_all();
>>      }
>>
>>      DISALLOW_COPY_AND_ASSIGN(Predicate);
>>
>> Modified: lldb/trunk/include/lldb/Host/ProcessRunLock.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Host/ProcessRunLock.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Host/ProcessRunLock.h (original)
>> +++ lldb/trunk/include/lldb/Host/ProcessRunLock.h Thu Jul 28 12:32:20 2016
>> @@ -18,7 +18,6 @@
>>  // Other libraries and framework includes
>>  // Project includes
>>  #include "lldb/lldb-defines.h"
>> -#include "lldb/Host/Condition.h"
>>
>>  //----------------------------------------------------------------------
>>  /// Enumerations for broadcasting.
>>
>> Modified: lldb/trunk/include/lldb/Target/Process.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Target/Process.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/include/lldb/Target/Process.h (original)
>> +++ lldb/trunk/include/lldb/Target/Process.h Thu Jul 28 12:32:20 2016
>> @@ -16,6 +16,7 @@
>>  #include <limits.h>
>>
>>  // C++ Includes
>> +#include <chrono>
>>  #include <list>
>>  #include <memory>
>>  #include <mutex>
>> @@ -2920,12 +2921,9 @@ public:
>>      // function releases the run lock after the stop. Setting
>> use_run_lock to false
>>      // will avoid this behavior.
>>      lldb::StateType
>> -    WaitForProcessToStop(const TimeValue *timeout,
>> -                         lldb::EventSP *event_sp_ptr = nullptr,
>> -                         bool wait_always = true,
>> -                         lldb::ListenerSP hijack_listener =
>> lldb::ListenerSP(),
>> -                         Stream *stream = nullptr,
>> -                         bool use_run_lock = true);
>> +    WaitForProcessToStop(const std::chrono::microseconds &timeout,
>> lldb::EventSP *event_sp_ptr = nullptr,
>> +                         bool wait_always = true, lldb::ListenerSP
>> hijack_listener = lldb::ListenerSP(),
>> +                         Stream *stream = nullptr, bool use_run_lock =
>> true);
>>
>>      uint32_t
>>      GetIOHandlerID () const
>> @@ -2947,8 +2945,7 @@ public:
>>      SyncIOHandler (uint32_t iohandler_id, uint64_t timeout_msec);
>>
>>      lldb::StateType
>> -    WaitForStateChangedEvents(const TimeValue *timeout,
>> -                              lldb::EventSP &event_sp,
>> +    WaitForStateChangedEvents(const std::chrono::microseconds &timeout,
>> lldb::EventSP &event_sp,
>>                                lldb::ListenerSP hijack_listener); // Pass
>> an empty ListenerSP to use builtin listener
>>
>>
>>  //--------------------------------------------------------------------------------------
>> @@ -3538,21 +3535,20 @@ protected:
>>      HaltPrivate();
>>
>>      lldb::StateType
>> -    WaitForProcessStopPrivate (const TimeValue *timeout, lldb::EventSP
>> &event_sp);
>> +    WaitForProcessStopPrivate(const std::chrono::microseconds &timeout,
>> lldb::EventSP &event_sp);
>>
>>      // This waits for both the state change broadcaster, and the control
>> broadcaster.
>>      // If control_only, it only waits for the control broadcaster.
>>
>>      bool
>> -    WaitForEventsPrivate (const TimeValue *timeout, lldb::EventSP
>> &event_sp, bool control_only);
>> +    WaitForEventsPrivate(const std::chrono::microseconds &timeout,
>> lldb::EventSP &event_sp, bool control_only);
>>
>>      lldb::StateType
>> -    WaitForStateChangedEventsPrivate (const TimeValue *timeout,
>> lldb::EventSP &event_sp);
>> +    WaitForStateChangedEventsPrivate(const std::chrono::microseconds
>> &timeout, lldb::EventSP &event_sp);
>>
>>      lldb::StateType
>> -    WaitForState (const TimeValue *timeout,
>> -                  const lldb::StateType *match_states,
>> -                  const uint32_t num_match_states);
>> +    WaitForState(const std::chrono::microseconds &timeout, const
>> lldb::StateType *match_states,
>> +                 const uint32_t num_match_states);
>>
>>      size_t
>>      WriteMemoryPrivate (lldb::addr_t addr, const void *buf, size_t size,
>> Error &error);
>>
>> Modified: lldb/trunk/source/API/SBListener.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/API/SBListener.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/API/SBListener.cpp (original)
>> +++ lldb/trunk/source/API/SBListener.cpp Thu Jul 28 12:32:20 2016
>> @@ -17,7 +17,6 @@
>>  #include "lldb/Core/Listener.h"
>>  #include "lldb/Core/Log.h"
>>  #include "lldb/Core/StreamString.h"
>> -#include "lldb/Host/TimeValue.h"
>>
>>
>>  using namespace lldb;
>> @@ -202,15 +201,14 @@ SBListener::WaitForEvent (uint32_t timeo
>>
>>      if (m_opaque_sp)
>>      {
>> -        TimeValue time_value;
>> +        std::chrono::microseconds timeout = std::chrono::microseconds(0);
>>          if (timeout_secs != UINT32_MAX)
>>          {
>>              assert (timeout_secs != 0); // Take this out after all calls
>> with timeout set to zero have been removed....
>> -            time_value = TimeValue::Now();
>> -            time_value.OffsetWithSeconds (timeout_secs);
>> +            timeout = std::chrono::seconds(timeout_secs);
>>          }
>>          EventSP event_sp;
>> -        if (m_opaque_sp->WaitForEvent (time_value.IsValid() ?
>> &time_value : NULL, event_sp))
>> +        if (m_opaque_sp->WaitForEvent(timeout, event_sp))
>>          {
>>              event.reset (event_sp);
>>              success = true;
>> @@ -247,16 +245,11 @@ SBListener::WaitForEventForBroadcaster
>>  {
>>      if (m_opaque_sp && broadcaster.IsValid())
>>      {
>> -        TimeValue time_value;
>> +        std::chrono::microseconds timeout = std::chrono::microseconds(0);
>>          if (num_seconds != UINT32_MAX)
>> -        {
>> -            time_value = TimeValue::Now();
>> -            time_value.OffsetWithSeconds (num_seconds);
>> -        }
>> +            timeout = std::chrono::seconds(num_seconds);
>>          EventSP event_sp;
>> -        if (m_opaque_sp->WaitForEventForBroadcaster
>> (time_value.IsValid() ? &time_value : NULL,
>> -
>>  broadcaster.get(),
>> -                                                         event_sp))
>> +        if (m_opaque_sp->WaitForEventForBroadcaster(timeout,
>> broadcaster.get(), event_sp))
>>          {
>>              event.reset (event_sp);
>>              return true;
>> @@ -278,17 +271,11 @@ SBListener::WaitForEventForBroadcasterWi
>>  {
>>      if (m_opaque_sp && broadcaster.IsValid())
>>      {
>> -        TimeValue time_value;
>> +        std::chrono::microseconds timeout = std::chrono::microseconds(0);
>>          if (num_seconds != UINT32_MAX)
>> -        {
>> -            time_value = TimeValue::Now();
>> -            time_value.OffsetWithSeconds (num_seconds);
>> -        }
>> +            timeout = std::chrono::seconds(num_seconds);
>>          EventSP event_sp;
>> -        if (m_opaque_sp->WaitForEventForBroadcasterWithType
>> (time_value.IsValid() ? &time_value : NULL,
>> -
>> broadcaster.get(),
>> -
>> event_type_mask,
>> -                                                              event_sp))
>> +        if (m_opaque_sp->WaitForEventForBroadcasterWithType(timeout,
>> broadcaster.get(), event_type_mask, event_sp))
>>          {
>>              event.reset (event_sp);
>>              return true;
>>
>> Modified: lldb/trunk/source/Core/Communication.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/Communication.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/Communication.cpp (original)
>> +++ lldb/trunk/source/Core/Communication.cpp Thu Jul 28 12:32:20 2016
>> @@ -156,18 +156,14 @@ Communication::Read (void *dst, size_t d
>>              status = eConnectionStatusNoConnection;
>>              return 0;
>>          }
>> -        // Set the timeout appropriately
>> -        TimeValue timeout_time;
>> -        if (timeout_usec != UINT32_MAX)
>> -        {
>> -            timeout_time = TimeValue::Now();
>> -            timeout_time.OffsetWithMicroSeconds (timeout_usec);
>> -        }
>>
>>          ListenerSP
>> listener_sp(Listener::MakeListener("Communication::Read"));
>>          listener_sp->StartListeningForEvents (this,
>> eBroadcastBitReadThreadGotBytes | eBroadcastBitReadThreadDidExit);
>>          EventSP event_sp;
>> -        while (listener_sp->WaitForEvent (timeout_time.IsValid() ?
>> &timeout_time : nullptr, event_sp))
>> +        std::chrono::microseconds timeout = std::chrono::microseconds(0);
>> +        if (timeout_usec != UINT32_MAX)
>> +            timeout = std::chrono::microseconds(timeout_usec);
>> +        while (listener_sp->WaitForEvent(timeout, event_sp))
>>          {
>>              const uint32_t event_type = event_sp->GetType();
>>              if (event_type & eBroadcastBitReadThreadGotBytes)
>> @@ -439,7 +435,7 @@ Communication::SynchronizeWithReadThread
>>
>>      // Wait for the synchronization event.
>>      EventSP event_sp;
>> -    listener_sp->WaitForEvent(nullptr, event_sp);
>> +    listener_sp->WaitForEvent(std::chrono::microseconds(0), event_sp);
>>  }
>>
>>  void
>>
>> Modified: lldb/trunk/source/Core/Debugger.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/Debugger.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/Debugger.cpp (original)
>> +++ lldb/trunk/source/Core/Debugger.cpp Thu Jul 28 12:32:20 2016
>> @@ -1608,7 +1608,7 @@ Debugger::DefaultEventHandler()
>>      while (!done)
>>      {
>>          EventSP event_sp;
>> -        if (listener_sp->WaitForEvent(nullptr, event_sp))
>> +        if (listener_sp->WaitForEvent(std::chrono::microseconds(0),
>> event_sp))
>>          {
>>              if (event_sp)
>>              {
>> @@ -1705,7 +1705,7 @@ Debugger::StartEventHandlerThread()
>>          // eBroadcastBitEventThreadIsListening so we don't need to check
>> the event, we just need
>>          // to wait an infinite amount of time for it (nullptr timeout as
>> the first parameter)
>>          lldb::EventSP event_sp;
>> -        listener_sp->WaitForEvent(nullptr, event_sp);
>> +        listener_sp->WaitForEvent(std::chrono::microseconds(0),
>> event_sp);
>>      }
>>      return m_event_handler_thread.IsJoinable();
>>  }
>>
>> Modified: lldb/trunk/source/Core/Listener.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/Listener.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Core/Listener.cpp (original)
>> +++ lldb/trunk/source/Core/Listener.cpp Thu Jul 28 12:32:20 2016
>> @@ -19,7 +19,6 @@
>>  #include "lldb/Core/Log.h"
>>  #include "lldb/Core/StreamString.h"
>>  #include "lldb/Core/Event.h"
>> -#include "lldb/Host/TimeValue.h"
>>
>>  using namespace lldb;
>>  using namespace lldb_private;
>> @@ -41,7 +40,7 @@ namespace
>>  } // anonymous namespace
>>
>>  Listener::Listener(const char *name)
>> -    : m_name(name), m_broadcasters(), m_broadcasters_mutex(),
>> m_events(), m_events_mutex(Mutex::eMutexTypeNormal)
>> +    : m_name(name), m_broadcasters(), m_broadcasters_mutex(),
>> m_events(), m_events_mutex()
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_OBJECT));
>>      if (log != nullptr)
>> @@ -63,7 +62,7 @@ void
>>  Listener::Clear()
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_OBJECT));
>> -    std::lock_guard<std::recursive_mutex> guard(m_broadcasters_mutex);
>> +    std::lock_guard<std::recursive_mutex>
>> broadcasters_guard(m_broadcasters_mutex);
>>      broadcaster_collection::iterator pos, end = m_broadcasters.end();
>>      for (pos = m_broadcasters.begin(); pos != end; ++pos)
>>      {
>> @@ -73,7 +72,7 @@ Listener::Clear()
>>      }
>>      m_broadcasters.clear();
>>
>> -    Mutex::Locker event_locker(m_events_mutex);
>> +    std::lock_guard<std::mutex> events_guard(m_events_mutex);
>>      m_events.clear();
>>      size_t num_managers = m_broadcaster_managers.size();
>>
>> @@ -96,7 +95,7 @@ Listener::StartListeningForEvents (Broad
>>          // Scope for "locker"
>>          // Tell the broadcaster to add this object as a listener
>>          {
>> -            std::lock_guard<std::recursive_mutex>
>> guard(m_broadcasters_mutex);
>> +            std::lock_guard<std::recursive_mutex>
>> broadcasters_guard(m_broadcasters_mutex);
>>              Broadcaster::BroadcasterImplWP
>> impl_wp(broadcaster->GetBroadcasterImpl());
>>              m_broadcasters.insert(std::make_pair(impl_wp,
>> BroadcasterInfo(event_mask)));
>>          }
>> @@ -123,7 +122,7 @@ Listener::StartListeningForEvents (Broad
>>          // Scope for "locker"
>>          // Tell the broadcaster to add this object as a listener
>>          {
>> -            std::lock_guard<std::recursive_mutex>
>> guard(m_broadcasters_mutex);
>> +            std::lock_guard<std::recursive_mutex>
>> broadcasters_guard(m_broadcasters_mutex);
>>              Broadcaster::BroadcasterImplWP
>> impl_wp(broadcaster->GetBroadcasterImpl());
>>              m_broadcasters.insert(std::make_pair(impl_wp,
>>
>> BroadcasterInfo(event_mask, callback, callback_user_data)));
>> @@ -154,7 +153,7 @@ Listener::StopListeningForEvents (Broadc
>>      {
>>          // Scope for "locker"
>>          {
>> -            std::lock_guard<std::recursive_mutex>
>> guard(m_broadcasters_mutex);
>> +            std::lock_guard<std::recursive_mutex>
>> broadcasters_guard(m_broadcasters_mutex);
>>              m_broadcasters.erase (broadcaster->GetBroadcasterImpl());
>>          }
>>          // Remove the broadcaster from our set of broadcasters
>> @@ -171,13 +170,13 @@ Listener::BroadcasterWillDestruct (Broad
>>  {
>>      // Scope for "broadcasters_locker"
>>      {
>> -        std::lock_guard<std::recursive_mutex>
>> guard(m_broadcasters_mutex);
>> +        std::lock_guard<std::recursive_mutex>
>> broadcasters_guard(m_broadcasters_mutex);
>>          m_broadcasters.erase (broadcaster->GetBroadcasterImpl());
>>      }
>>
>>      // Scope for "event_locker"
>>      {
>> -        Mutex::Locker event_locker(m_events_mutex);
>> +        std::lock_guard<std::mutex> events_guard(m_events_mutex);
>>          // Remove all events for this broadcaster object.
>>          event_collection::iterator pos = m_events.begin();
>>          while (pos != m_events.end())
>> @@ -212,9 +211,9 @@ Listener::AddEvent (EventSP &event_sp)
>>                       static_cast<void*>(this), m_name.c_str(),
>>                       static_cast<void*>(event_sp.get()));
>>
>> -    Mutex::Locker locker(m_events_mutex);
>> +    std::lock_guard<std::mutex> guard(m_events_mutex);
>>      m_events.push_back (event_sp);
>> -    m_events_condition.Broadcast();
>> +    m_events_condition.notify_all();
>>  }
>>
>>  class EventBroadcasterMatches
>> @@ -279,15 +278,11 @@ private:
>>  };
>>
>>  bool
>> -Listener::FindNextEventInternal
>> -(
>> -    Mutex::Locker& lock,
>> -    Broadcaster *broadcaster,   // nullptr for any broadcaster
>> -    const ConstString *broadcaster_names, // nullptr for any event
>> -    uint32_t num_broadcaster_names,
>> -    uint32_t event_type_mask,
>> -    EventSP &event_sp,
>> -    bool remove)
>> +Listener::FindNextEventInternal(std::unique_lock<std::mutex> &lock,
>> +                                Broadcaster *broadcaster,             //
>> nullptr for any broadcaster
>> +                                const ConstString *broadcaster_names, //
>> nullptr for any event
>> +                                uint32_t num_broadcaster_names, uint32_t
>> event_type_mask, EventSP &event_sp,
>> +                                bool remove)
>>  {
>>      // NOTE: callers of this function must lock m_events_mutex using a
>> Mutex::Locker
>>      // and pass the locker as the first argument. m_events_mutex is no
>> longer recursive.
>> @@ -325,7 +320,7 @@ Listener::FindNextEventInternal
>>              // Unlock the event queue here.  We've removed this event
>> and are about to return
>>              // it so it should be okay to get the next event off the
>> queue here - and it might
>>              // be useful to do that in the "DoOnRemoval".
>> -            lock.Unlock();
>> +            lock.unlock();
>>              event_sp->DoOnRemoval();
>>          }
>>          return true;
>> @@ -338,9 +333,9 @@ Listener::FindNextEventInternal
>>  Event *
>>  Listener::PeekAtNextEvent ()
>>  {
>> -    Mutex::Locker lock(m_events_mutex);
>> +    std::unique_lock<std::mutex> guard(m_events_mutex);
>>      EventSP event_sp;
>> -    if (FindNextEventInternal(lock, nullptr, nullptr, 0, 0, event_sp,
>> false))
>> +    if (FindNextEventInternal(guard, nullptr, nullptr, 0, 0, event_sp,
>> false))
>>          return event_sp.get();
>>      return nullptr;
>>  }
>> @@ -348,9 +343,9 @@ Listener::PeekAtNextEvent ()
>>  Event *
>>  Listener::PeekAtNextEventForBroadcaster (Broadcaster *broadcaster)
>>  {
>> -    Mutex::Locker lock(m_events_mutex);
>> +    std::unique_lock<std::mutex> guard(m_events_mutex);
>>      EventSP event_sp;
>> -    if (FindNextEventInternal(lock, broadcaster, nullptr, 0, 0,
>> event_sp, false))
>> +    if (FindNextEventInternal(guard, broadcaster, nullptr, 0, 0,
>> event_sp, false))
>>          return event_sp.get();
>>      return nullptr;
>>  }
>> @@ -358,9 +353,9 @@ Listener::PeekAtNextEventForBroadcaster
>>  Event *
>>  Listener::PeekAtNextEventForBroadcasterWithType (Broadcaster
>> *broadcaster, uint32_t event_type_mask)
>>  {
>> -    Mutex::Locker lock(m_events_mutex);
>> +    std::unique_lock<std::mutex> guard(m_events_mutex);
>>      EventSP event_sp;
>> -    if (FindNextEventInternal(lock, broadcaster, nullptr, 0,
>> event_type_mask, event_sp, false))
>> +    if (FindNextEventInternal(guard, broadcaster, nullptr, 0,
>> event_type_mask, event_sp, false))
>>          return event_sp.get();
>>      return nullptr;
>>  }
>> @@ -372,8 +367,9 @@ Listener::GetNextEventInternal(Broadcast
>>                                 uint32_t event_type_mask,
>>                                 EventSP &event_sp)
>>  {
>> -    Mutex::Locker lock(m_events_mutex);
>> -    return FindNextEventInternal (lock, broadcaster, broadcaster_names,
>> num_broadcaster_names, event_type_mask, event_sp, true);
>> +    std::unique_lock<std::mutex> guard(m_events_mutex);
>> +    return FindNextEventInternal(guard, broadcaster, broadcaster_names,
>> num_broadcaster_names, event_type_mask,
>> +                                 event_sp, true);
>>  }
>>
>>  bool
>> @@ -395,20 +391,17 @@ Listener::GetNextEventForBroadcasterWith
>>  }
>>
>>  bool
>> -Listener::WaitForEventsInternal(const TimeValue *timeout,
>> +Listener::WaitForEventsInternal(const std::chrono::microseconds &timeout,
>>                                  Broadcaster *broadcaster,             //
>> nullptr for any broadcaster
>>                                  const ConstString *broadcaster_names, //
>> nullptr for any event
>> -                                uint32_t num_broadcaster_names,
>> -                                uint32_t event_type_mask,
>> -                                EventSP &event_sp)
>> +                                uint32_t num_broadcaster_names, uint32_t
>> event_type_mask, EventSP &event_sp)
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_EVENTS));
>>      if (log != nullptr)
>> -        log->Printf ("%p Listener::WaitForEventsInternal (timeout = { %p
>> }) for %s",
>> -                     static_cast<void*>(this), static_cast<const
>> void*>(timeout),
>> -                     m_name.c_str());
>> +        log->Printf("%p Listener::WaitForEventsInternal (timeout = %llu
>> us) for %s", static_cast<void *>(this),
>> +                    static_cast<unsigned long long>(timeout.count()),
>> m_name.c_str());
>>
>> -    Mutex::Locker lock(m_events_mutex);
>> +    std::unique_lock<std::mutex> lock(m_events_mutex);
>>
>>      while (true)
>>      {
>> @@ -418,23 +411,26 @@ Listener::WaitForEventsInternal(const Ti
>>          }
>>          else
>>          {
>> -            bool timed_out = false;
>> -            if (m_events_condition.Wait(m_events_mutex, timeout,
>> &timed_out) != 0)
>> +            std::cv_status result = std::cv_status::no_timeout;
>> +            if (timeout == std::chrono::microseconds(0))
>> +                m_events_condition.wait(lock);
>> +            else
>> +                result = m_events_condition.wait_for(lock, timeout);
>> +
>> +            if (result == std::cv_status::timeout)
>>              {
>> -                if (timed_out)
>> -                {
>> -                    log = lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_EVENTS);
>> -                    if (log != nullptr)
>> -                        log->Printf ("%p
>> Listener::WaitForEventsInternal() timed out for %s",
>> -                                     static_cast<void*>(this),
>> m_name.c_str());
>> -                }
>> -                else
>> -                {
>> -                    log = lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_EVENTS);
>> -                    if (log != nullptr)
>> -                        log->Printf ("%p
>> Listener::WaitForEventsInternal() unknown error for %s",
>> -                                     static_cast<void*>(this),
>> m_name.c_str());
>> -                }
>> +              log =
>> lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS);
>> +              if (log)
>> +                  log->Printf("%p Listener::WaitForEventsInternal()
>> timed out for %s", static_cast<void *>(this),
>> +                              m_name.c_str());
>> +              return false;
>> +            }
>> +            else if (result != std::cv_status::no_timeout)
>> +            {
>> +                log =
>> lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS);
>> +                if (log)
>> +                    log->Printf("%p Listener::WaitForEventsInternal()
>> unknown error for %s", static_cast<void *>(this),
>> +                                m_name.c_str());
>>                  return false;
>>              }
>>          }
>> @@ -444,24 +440,21 @@ Listener::WaitForEventsInternal(const Ti
>>  }
>>
>>  bool
>> -Listener::WaitForEventForBroadcasterWithType(const TimeValue *timeout,
>> -                                             Broadcaster *broadcaster,
>> -                                             uint32_t event_type_mask,
>> -                                             EventSP &event_sp)
>> +Listener::WaitForEventForBroadcasterWithType(const
>> std::chrono::microseconds &timeout, Broadcaster *broadcaster,
>> +                                             uint32_t event_type_mask,
>> EventSP &event_sp)
>>  {
>>      return WaitForEventsInternal(timeout, broadcaster, nullptr, 0,
>> event_type_mask, event_sp);
>>  }
>>
>>  bool
>> -Listener::WaitForEventForBroadcaster(const TimeValue *timeout,
>> -                                     Broadcaster *broadcaster,
>> +Listener::WaitForEventForBroadcaster(const std::chrono::microseconds
>> &timeout, Broadcaster *broadcaster,
>>                                       EventSP &event_sp)
>>  {
>>      return WaitForEventsInternal(timeout, broadcaster, nullptr, 0, 0,
>> event_sp);
>>  }
>>
>>  bool
>> -Listener::WaitForEvent (const TimeValue *timeout, EventSP &event_sp)
>> +Listener::WaitForEvent(const std::chrono::microseconds &timeout, EventSP
>> &event_sp)
>>  {
>>      return WaitForEventsInternal(timeout, nullptr, nullptr, 0, 0,
>> event_sp);
>>  }
>>
>> Modified: lldb/trunk/source/Host/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/CMakeLists.txt?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/CMakeLists.txt (original)
>> +++ lldb/trunk/source/Host/CMakeLists.txt Thu Jul 28 12:32:20 2016
>> @@ -4,7 +4,6 @@ macro(add_host_subdirectory group)
>>  endmacro()
>>
>>  add_host_subdirectory(common
>> -  common/Condition.cpp
>>    common/File.cpp
>>    common/FileCache.cpp
>>    common/FileSpec.cpp
>> @@ -17,7 +16,6 @@ add_host_subdirectory(common
>>    common/HostThread.cpp
>>    common/IOObject.cpp
>>    common/LockFileBase.cpp
>> -  common/Mutex.cpp
>>    common/MonitoringProcessLauncher.cpp
>>    common/NativeBreakpoint.cpp
>>    common/NativeBreakpointList.cpp
>> @@ -60,7 +58,6 @@ add_host_subdirectory(posix
>>
>>  if (CMAKE_SYSTEM_NAME MATCHES "Windows")
>>    add_host_subdirectory(windows
>> -    windows/Condition.cpp
>>      windows/ConnectionGenericFileWindows.cpp
>>      windows/EditLineWin.cpp
>>      windows/FileSystem.cpp
>> @@ -69,7 +66,6 @@ if (CMAKE_SYSTEM_NAME MATCHES "Windows")
>>      windows/HostProcessWindows.cpp
>>      windows/HostThreadWindows.cpp
>>      windows/LockFileWindows.cpp
>> -    windows/Mutex.cpp
>>      windows/PipeWindows.cpp
>>      windows/ProcessLauncherWindows.cpp
>>      windows/ProcessRunLock.cpp
>>
>> Removed: lldb/trunk/source/Host/common/Condition.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/common/Condition.cpp?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/common/Condition.cpp (original)
>> +++ lldb/trunk/source/Host/common/Condition.cpp (removed)
>> @@ -1,108 +0,0 @@
>> -//===-- Condition.cpp -------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#include <errno.h>
>> -
>> -#include "lldb/Host/Condition.h"
>> -#include "lldb/Host/TimeValue.h"
>> -
>> -
>> -using namespace lldb_private;
>> -
>> -#ifndef _WIN32
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor
>> -//
>> -// The default constructor will initialize a new pthread condition
>> -// and maintain the condition in the object state.
>> -//----------------------------------------------------------------------
>> -Condition::Condition () :
>> -    m_condition()
>> -{
>> -    ::pthread_cond_init (&m_condition, NULL);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Destructor
>> -//
>> -// Destroys the pthread condition that the object owns.
>> -//----------------------------------------------------------------------
>> -Condition::~Condition ()
>> -{
>> -    ::pthread_cond_destroy (&m_condition);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Unblock all threads waiting for a condition variable
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Broadcast ()
>> -{
>> -    return ::pthread_cond_broadcast (&m_condition);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Unblocks one thread waiting for the condition variable
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Signal ()
>> -{
>> -    return ::pthread_cond_signal (&m_condition);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// The Wait() function atomically blocks the current thread
>> -// waiting on the owned condition variable, and unblocks the mutex
>> -// specified by "mutex".  The waiting thread unblocks only after
>> -// another thread calls Signal(), or Broadcast() with the same
>> -// condition variable, or if "abstime" is valid (non-NULL) this
>> -// function will return when the system time reaches the time
>> -// specified in "abstime". If "abstime" is NULL this function will
>> -// wait for an infinite amount of time for the condition variable
>> -// to be signaled or broadcasted.
>> -//
>> -// The current thread re-acquires the lock on "mutex".
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Wait (Mutex &mutex, const TimeValue *abstime, bool *timed_out)
>> -{
>> -    int err = 0;
>> -    do
>> -    {
>> -        if (abstime && abstime->IsValid())
>> -        {
>> -            struct timespec abstime_ts = abstime->GetAsTimeSpec();
>> -            err = ::pthread_cond_timedwait (&m_condition,
>> mutex.GetMutex(), &abstime_ts);
>> -        }
>> -        else
>> -            err = ::pthread_cond_wait (&m_condition, mutex.GetMutex());
>> -    } while (err == EINTR);
>> -
>> -    if (timed_out != NULL)
>> -    {
>> -        if (err == ETIMEDOUT)
>> -            *timed_out = true;
>> -        else
>> -            *timed_out = false;
>> -    }
>> -
>> -    return err;
>> -}
>> -
>> -#endif
>> -
>> -//----------------------------------------------------------------------
>> -// Get accessor to the pthread condition object
>> -//----------------------------------------------------------------------
>> -lldb::condition_t *
>> -Condition::GetCondition()
>> -{
>> -    return &m_condition;
>> -}
>>
>> Modified: lldb/trunk/source/Host/common/Host.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/common/Host.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/common/Host.cpp (original)
>> +++ lldb/trunk/source/Host/common/Host.cpp Thu Jul 28 12:32:20 2016
>> @@ -620,14 +620,8 @@ Host::RunShellCommand(const Args &args,
>>
>>      if (error.Success())
>>      {
>> -        TimeValue *timeout_ptr = nullptr;
>> -        TimeValue timeout_time(TimeValue::Now());
>> -        if (timeout_sec > 0) {
>> -            timeout_time.OffsetWithSeconds(timeout_sec);
>> -            timeout_ptr = &timeout_time;
>> -        }
>>          bool timed_out = false;
>> -        shell_info_sp->process_reaped.WaitForValueEqualTo(true,
>> timeout_ptr, &timed_out);
>> +        shell_info_sp->process_reaped.WaitForValueEqualTo(true,
>> std::chrono::seconds(timeout_sec), &timed_out);
>>          if (timed_out)
>>          {
>>              error.SetErrorString("timed out waiting for shell command to
>> complete");
>> @@ -635,10 +629,8 @@ Host::RunShellCommand(const Args &args,
>>              // Kill the process since it didn't complete within the
>> timeout specified
>>              Kill (pid, SIGKILL);
>>              // Wait for the monitor callback to get the message
>> -            timeout_time = TimeValue::Now();
>> -            timeout_time.OffsetWithSeconds(1);
>>              timed_out = false;
>> -            shell_info_sp->process_reaped.WaitForValueEqualTo(true,
>> &timeout_time, &timed_out);
>> +            shell_info_sp->process_reaped.WaitForValueEqualTo(true,
>> std::chrono::seconds(1), &timed_out);
>>          }
>>          else
>>          {
>>
>> Removed: lldb/trunk/source/Host/common/Mutex.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/common/Mutex.cpp?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/common/Mutex.cpp (original)
>> +++ lldb/trunk/source/Host/common/Mutex.cpp (removed)
>> @@ -1,398 +0,0 @@
>> -//===-- Mutex.cpp -----------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#include "lldb/Host/Mutex.h"
>> -#include "lldb/Host/Host.h"
>> -
>> -#ifndef _WIN32
>> -#include <pthread.h>
>> -#endif
>> -#include <string.h>
>> -#include <stdio.h>
>> -
>> -#if 0
>> -// This logging is way too verbose to enable even for a log channel.
>> -// This logging can be enabled by changing the "#if 0", but should be
>> -// reverted prior to checking in.
>> -#include <cstdio>
>> -#define DEBUG_LOG(fmt, ...) printf(fmt, ## __VA_ARGS__)
>> -#else
>> -#define DEBUG_LOG(fmt, ...)
>> -#endif
>> -
>> -// Enable extra mutex error checking
>> -#if 0 // LLDB_CONFIGURATION_DEBUG
>> -#define ENABLE_MUTEX_ERROR_CHECKING 1
>> -#include <inttypes.h>
>> -#endif
>> -
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -#include <set>
>> -
>> -enum MutexAction
>> -{
>> -    eMutexActionInitialized,
>> -    eMutexActionDestroyed,
>> -    eMutexActionAssertInitialized
>> -};
>> -
>> -static bool
>> -error_check_mutex (pthread_mutex_t *m, MutexAction action)
>> -{
>> -    typedef std::set<pthread_mutex_t *> mutex_set;
>> -    static pthread_mutex_t g_mutex_set_mutex = PTHREAD_MUTEX_INITIALIZER;
>> -    static mutex_set g_initialized_mutex_set;
>> -    static mutex_set g_destroyed_mutex_set;
>> -
>> -    bool success = true;
>> -    int err;
>> -    // Manually call lock so we don't to any of this error checking
>> -    err = ::pthread_mutex_lock (&g_mutex_set_mutex);
>> -    assert(err == 0);
>> -    switch (action)
>> -    {
>> -        case eMutexActionInitialized:
>> -            // Make sure this isn't already in our initialized mutex
>> set...
>> -            assert (g_initialized_mutex_set.find(m) ==
>> g_initialized_mutex_set.end());
>> -            // Remove this from the destroyed set in case it was ever in
>> there
>> -            g_destroyed_mutex_set.erase(m);
>> -            // Add the mutex to the initialized set
>> -            g_initialized_mutex_set.insert(m);
>> -            break;
>> -
>> -        case eMutexActionDestroyed:
>> -            // Make sure this isn't already in our destroyed mutex set...
>> -            assert (g_destroyed_mutex_set.find(m) ==
>> g_destroyed_mutex_set.end());
>> -            // Remove this from the initialized so we can put it into
>> the destroyed set
>> -            g_initialized_mutex_set.erase(m);
>> -            // Add the mutex to the destroyed set
>> -            g_destroyed_mutex_set.insert(m);
>> -            break;
>> -        case eMutexActionAssertInitialized:
>> -            // This function will return true if "m" is in the
>> initialized mutex set
>> -            success = g_initialized_mutex_set.find(m) !=
>> g_initialized_mutex_set.end();
>> -            assert (success);
>> -            break;
>> -    }
>> -    // Manually call unlock so we don't to any of this error checking
>> -    err = ::pthread_mutex_unlock (&g_mutex_set_mutex);
>> -    assert(err == 0);
>> -    return success;
>> -}
>> -
>> -#endif
>> -
>> -using namespace lldb_private;
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor.
>> -//
>> -// This will create a scoped mutex locking object that doesn't have
>> -// a mutex to lock. One will need to be provided using the Reset()
>> -// method.
>> -//----------------------------------------------------------------------
>> -Mutex::Locker::Locker () :
>> -    m_mutex_ptr(NULL)
>> -{
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Constructor with a Mutex object.
>> -//
>> -// This will create a scoped mutex locking object that extracts the
>> -// mutex owned by "m" and locks it.
>> -//----------------------------------------------------------------------
>> -Mutex::Locker::Locker (Mutex& m) :
>> -    m_mutex_ptr(NULL)
>> -{
>> -    Lock (m);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Constructor with a Mutex object pointer.
>> -//
>> -// This will create a scoped mutex locking object that extracts the
>> -// mutex owned by "m" and locks it.
>> -//----------------------------------------------------------------------
>> -Mutex::Locker::Locker (Mutex* m) :
>> -    m_mutex_ptr(NULL)
>> -{
>> -    if (m)
>> -        Lock (m);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Destructor
>> -//
>> -// Unlocks any owned mutex object (if it is valid).
>> -//----------------------------------------------------------------------
>> -Mutex::Locker::~Locker ()
>> -{
>> -    Unlock();
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Unlock the current mutex in this object (if this owns a valid
>> -// mutex) and lock the new "mutex" object if it is non-NULL.
>> -//----------------------------------------------------------------------
>> -void
>> -Mutex::Locker::Lock (Mutex &mutex)
>> -{
>> -    // We already have this mutex locked or both are NULL...
>> -    if (m_mutex_ptr == &mutex)
>> -        return;
>> -
>> -    Unlock ();
>> -
>> -    m_mutex_ptr = &mutex;
>> -    m_mutex_ptr->Lock();
>> -}
>> -
>> -void
>> -Mutex::Locker::Unlock ()
>> -{
>> -    if (m_mutex_ptr)
>> -    {
>> -        m_mutex_ptr->Unlock ();
>> -        m_mutex_ptr = NULL;
>> -    }
>> -}
>> -
>> -bool
>> -Mutex::Locker::TryLock (Mutex &mutex, const char *failure_message)
>> -{
>> -    // We already have this mutex locked!
>> -    if (m_mutex_ptr == &mutex)
>> -        return true;
>> -
>> -    Unlock ();
>> -
>> -    if (mutex.TryLock(failure_message) == 0)
>> -        m_mutex_ptr = &mutex;
>> -
>> -    return m_mutex_ptr != NULL;
>> -}
>> -
>> -#ifndef _WIN32
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor.
>> -//
>> -// Creates a pthread mutex with no attributes.
>> -//----------------------------------------------------------------------
>> -Mutex::Mutex () :
>> -    m_mutex()
>> -{
>> -    int err;
>> -    err = ::pthread_mutex_init (&m_mutex, NULL);
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    if (err == 0)
>> -        error_check_mutex (&m_mutex, eMutexActionInitialized);
>> -#endif
>> -    assert(err == 0);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor.
>> -//
>> -// Creates a pthread mutex with "type" as the mutex type.
>> -//----------------------------------------------------------------------
>> -Mutex::Mutex (Mutex::Type type) :
>> -    m_mutex()
>> -{
>> -    int err;
>> -    ::pthread_mutexattr_t attr;
>> -    err = ::pthread_mutexattr_init (&attr);
>> -    assert(err == 0);
>> -    switch (type)
>> -    {
>> -    case eMutexTypeNormal:
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -        err = ::pthread_mutexattr_settype (&attr,
>> PTHREAD_MUTEX_ERRORCHECK);
>> -#else
>> -        err = ::pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_NORMAL);
>> -#endif
>> -        break;
>> -
>> -    case eMutexTypeRecursive:
>> -        err = ::pthread_mutexattr_settype (&attr,
>> PTHREAD_MUTEX_RECURSIVE);
>> -        break;
>> -    }
>> -    assert(err == 0);
>> -    err = ::pthread_mutex_init (&m_mutex, &attr);
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    if (err == 0)
>> -        error_check_mutex (&m_mutex, eMutexActionInitialized);
>> -#endif
>> -    assert(err == 0);
>> -    err = ::pthread_mutexattr_destroy (&attr);
>> -    assert(err == 0);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Destructor.
>> -//
>> -// Destroys the mutex owned by this object.
>> -//----------------------------------------------------------------------
>> -Mutex::~Mutex()
>> -{
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    int err = ::pthread_mutex_destroy (&m_mutex);
>> -    assert(err == 0);
>> -    if (err == 0)
>> -        error_check_mutex (&m_mutex, eMutexActionDestroyed);
>> -    else
>> -    {
>> -        Host::SetCrashDescriptionWithFormat ("%s error:
>> pthread_mutex_destroy() => err = %i (%s)", __PRETTY_FUNCTION__, err,
>> strerror(err));
>> -        assert(err == 0);
>> -    }
>> -    memset (&m_mutex, '\xba', sizeof(m_mutex));
>> -#else
>> -    ::pthread_mutex_destroy (&m_mutex);
>> -#endif
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Locks the mutex owned by this object, if the mutex is already
>> -// locked, the calling thread will block until the mutex becomes
>> -// available.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_lock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::Lock()
>> -{
>> -    DEBUG_LOG ("[%4.4" PRIx64 "/%4.4" PRIx64 "] pthread_mutex_lock
>> (%p)...\n", Host::GetCurrentProcessID(), Host::GetCurrentThreadID(),
>> &m_mutex);
>> -
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    error_check_mutex (&m_mutex, eMutexActionAssertInitialized);
>> -#endif
>> -
>> -    int err = ::pthread_mutex_lock (&m_mutex);
>> -
>> -
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    if (err)
>> -    {
>> -        Host::SetCrashDescriptionWithFormat ("%s error:
>> pthread_mutex_lock(%p) => err = %i (%s)", __PRETTY_FUNCTION__, &m_mutex,
>> err, strerror(err));
>> -        assert(err == 0);
>> -    }
>> -#endif
>> -    DEBUG_LOG ("[%4.4" PRIx64 "/%4.4" PRIx64 "] pthread_mutex_lock (%p)
>> => %i\n", Host::GetCurrentProcessID(), Host::GetCurrentThreadID(),
>> &m_mutex, err);
>> -    return err;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Attempts to lock the mutex owned by this object without blocking.
>> -// If the mutex is already locked, TryLock() will not block waiting
>> -// for the mutex, but will return an error condition.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_trylock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::TryLock(const char *failure_message)
>> -{
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    error_check_mutex (&m_mutex, eMutexActionAssertInitialized);
>> -#endif
>> -
>> -    int err = ::pthread_mutex_trylock (&m_mutex);
>> -    DEBUG_LOG ("[%4.4" PRIx64 "/%4.4" PRIx64 "] pthread_mutex_trylock
>> (%p) => %i\n", Host::GetCurrentProcessID(), Host::GetCurrentThreadID(),
>> &m_mutex, err);
>> -    return err;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// If the current thread holds the lock on the owned mutex, then
>> -// Unlock() will unlock the mutex. Calling Unlock() on this object
>> -// that the calling thread does not hold will result in undefined
>> -// behavior.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_unlock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::Unlock()
>> -{
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    error_check_mutex (&m_mutex, eMutexActionAssertInitialized);
>> -#endif
>> -
>> -    int err = ::pthread_mutex_unlock (&m_mutex);
>> -
>> -#if ENABLE_MUTEX_ERROR_CHECKING
>> -    if (err)
>> -    {
>> -        Host::SetCrashDescriptionWithFormat ("%s error:
>> pthread_mutex_unlock(%p) => err = %i (%s)", __PRETTY_FUNCTION__, &m_mutex,
>> err, strerror(err));
>> -        assert(err == 0);
>> -    }
>> -#endif
>> -    DEBUG_LOG ("[%4.4" PRIx64 "/%4.4" PRIx64 "] pthread_mutex_unlock
>> (%p) => %i\n", Host::GetCurrentProcessID(), Host::GetCurrentThreadID(),
>> &m_mutex, err);
>> -    return err;
>> -}
>> -
>> -#endif
>> -
>> -//----------------------------------------------------------------------
>> -// Mutex get accessor.
>> -//----------------------------------------------------------------------
>> -lldb::mutex_t *
>> -Mutex::GetMutex()
>> -{
>> -    return &m_mutex;
>> -}
>> -
>> -#ifdef LLDB_CONFIGURATION_DEBUG
>> -int
>> -TrackingMutex::Unlock ()
>> -{
>> -    if (!m_failure_message.empty())
>> -        Host::SetCrashDescriptionWithFormat ("Unlocking lock (on thread
>> %p) that thread: %p failed to get: %s",
>> -                                             pthread_self(),
>> -                                             m_thread_that_tried,
>> -                                             m_failure_message.c_str());
>> -    assert (m_failure_message.empty());
>> -    return Mutex::Unlock();
>> -}
>> -
>> -int
>> -LoggingMutex::Lock ()
>> -{
>> -    printf("locking mutex %p by [%4.4" PRIx64 "/%4.4" PRIx64 "]...",
>> this, Host::GetCurrentProcessID(), Host::GetCurrentThreadID());
>> -    int x = Mutex::Lock();
>> -    m_locked = true;
>> -    printf("%d\n",x);
>> -    return x;
>> -}
>> -
>> -int
>> -LoggingMutex::Unlock ()
>> -{
>> -    printf("unlocking mutex %p by [%4.4" PRIx64 "/%4.4" PRIx64 "]...",
>> this, Host::GetCurrentProcessID(), Host::GetCurrentThreadID());
>> -    int x = Mutex::Unlock();
>> -    m_locked = false;
>> -    printf("%d\n",x);
>> -    return x;
>> -}
>> -
>> -int
>> -LoggingMutex::TryLock (const char *failure_message)
>> -{
>> -    printf("trylocking mutex %p by [%4.4" PRIx64 "/%4.4" PRIx64 "]...",
>> this, Host::GetCurrentProcessID(), Host::GetCurrentThreadID());
>> -    int x = Mutex::TryLock(failure_message);
>> -    if (x == 0)
>> -        m_locked = true;
>> -    printf("%d\n",x);
>> -    return x;
>> -}
>> -
>> -#endif
>> -
>> -
>>
>> Modified: lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp
>> (original)
>> +++ lldb/trunk/source/Host/posix/ConnectionFileDescriptorPosix.cpp Thu
>> Jul 28 12:32:20 2016
>> @@ -877,11 +877,7 @@ ConnectionFileDescriptor::GetListeningPo
>>      if (timeout_sec == UINT32_MAX)
>>          m_port_predicate.WaitForValueNotEqualTo(0, bound_port);
>>      else
>> -    {
>> -        TimeValue timeout = TimeValue::Now();
>> -        timeout.OffsetWithSeconds(timeout_sec);
>> -        m_port_predicate.WaitForValueNotEqualTo(0, bound_port, &timeout);
>> -    }
>> +        m_port_predicate.WaitForValueNotEqualTo(0, bound_port,
>> std::chrono::seconds(timeout_sec));
>>      return bound_port;
>>  }
>>
>>
>> Removed: lldb/trunk/source/Host/windows/Condition.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/windows/Condition.cpp?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/windows/Condition.cpp (original)
>> +++ lldb/trunk/source/Host/windows/Condition.cpp (removed)
>> @@ -1,98 +0,0 @@
>> -//===-- Condition.cpp -------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#include <errno.h>
>> -
>> -#include "lldb/Host/Condition.h"
>> -#include "lldb/Host/TimeValue.h"
>> -#include "lldb/Host/windows/windows.h"
>> -
>> -
>> -using namespace lldb_private;
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor
>> -//
>> -// The default constructor will initialize a new pthread condition
>> -// and maintain the condition in the object state.
>> -//----------------------------------------------------------------------
>> -Condition::Condition () :
>> -    m_condition()
>> -{
>> -    m_condition =
>> static_cast<PCONDITION_VARIABLE>(malloc(sizeof(CONDITION_VARIABLE)));
>> -
>> InitializeConditionVariable(static_cast<PCONDITION_VARIABLE>(m_condition));
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Destructor
>> -//
>> -// Destroys the pthread condition that the object owns.
>> -//----------------------------------------------------------------------
>> -Condition::~Condition ()
>> -{
>> -    free(m_condition);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Unblock all threads waiting for a condition variable
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Broadcast ()
>> -{
>> -
>> WakeAllConditionVariable(static_cast<PCONDITION_VARIABLE>(m_condition));
>> -    return 0;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Unblocks one thread waiting for the condition variable
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Signal ()
>> -{
>> -    WakeConditionVariable(static_cast<PCONDITION_VARIABLE>(m_condition));
>> -    return 0;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// The Wait() function atomically blocks the current thread
>> -// waiting on the owned condition variable, and unblocks the mutex
>> -// specified by "mutex".  The waiting thread unblocks only after
>> -// another thread calls Signal(), or Broadcast() with the same
>> -// condition variable, or if "abstime" is valid (non-NULL) this
>> -// function will return when the system time reaches the time
>> -// specified in "abstime". If "abstime" is NULL this function will
>> -// wait for an infinite amount of time for the condition variable
>> -// to be signaled or broadcasted.
>> -//
>> -// The current thread re-acquires the lock on "mutex".
>> -//----------------------------------------------------------------------
>> -int
>> -Condition::Wait (Mutex &mutex, const TimeValue *abstime, bool *timed_out)
>> -{
>> -    DWORD wait = INFINITE;
>> -    if (abstime != NULL) {
>> -        int wval = (*abstime - TimeValue::Now()) / 1000000;
>> -        if (wval < 0) wval = 0;
>> -
>> -        wait = wval;
>> -    }
>> -
>> -    int err =
>> SleepConditionVariableCS(static_cast<PCONDITION_VARIABLE>(m_condition),
>> static_cast<PCRITICAL_SECTION>(mutex.m_mutex), wait);
>> -
>> -    if (timed_out != NULL)
>> -    {
>> -        if ((err == 0) && GetLastError() == ERROR_TIMEOUT)
>> -            *timed_out = true;
>> -        else
>> -            *timed_out = false;
>> -    }
>> -
>> -    return err == 0;
>> -}
>> -
>>
>> Removed: lldb/trunk/source/Host/windows/Mutex.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/windows/Mutex.cpp?rev=277010&view=auto
>>
>> ==============================================================================
>> --- lldb/trunk/source/Host/windows/Mutex.cpp (original)
>> +++ lldb/trunk/source/Host/windows/Mutex.cpp (removed)
>> @@ -1,109 +0,0 @@
>> -//===-- Mutex.cpp -----------------------------------------------*- C++
>> -*-===//
>> -//
>> -//                     The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>>
>> -//===----------------------------------------------------------------------===//
>> -
>> -#include "lldb/Host/Mutex.h"
>> -#include "lldb/Host/Host.h"
>> -#include "lldb/Host/windows/windows.h"
>> -
>> -#include <string.h>
>> -#include <stdio.h>
>> -
>> -#if 0
>> -// This logging is way too verbose to enable even for a log channel.
>> -// This logging can be enabled by changing the "#if 0", but should be
>> -// reverted prior to checking in.
>> -#include <cstdio>
>> -#define DEBUG_LOG(fmt, ...) printf(fmt, ## __VA_ARGS__)
>> -#else
>> -#define DEBUG_LOG(fmt, ...)
>> -#endif
>> -
>> -using namespace lldb_private;
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor.
>> -//
>> -// Creates a pthread mutex with no attributes.
>> -//----------------------------------------------------------------------
>> -Mutex::Mutex () :
>> -    m_mutex()
>> -{
>> -    m_mutex =
>> static_cast<PCRITICAL_SECTION>(malloc(sizeof(CRITICAL_SECTION)));
>> -    InitializeCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex));
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Default constructor.
>> -//
>> -// Creates a pthread mutex with "type" as the mutex type.
>> -//----------------------------------------------------------------------
>> -Mutex::Mutex (Mutex::Type type) :
>> -    m_mutex()
>> -{
>> -    m_mutex =
>> static_cast<PCRITICAL_SECTION>(malloc(sizeof(CRITICAL_SECTION)));
>> -    InitializeCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex));
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Destructor.
>> -//
>> -// Destroys the mutex owned by this object.
>> -//----------------------------------------------------------------------
>> -Mutex::~Mutex()
>> -{
>> -    DeleteCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex));
>> -    free(m_mutex);
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Locks the mutex owned by this object, if the mutex is already
>> -// locked, the calling thread will block until the mutex becomes
>> -// available.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_lock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::Lock()
>> -{
>> -    DEBUG_LOG ("[%4.4" PRIx64 "/%4.4" PRIx64 "] pthread_mutex_lock
>> (%p)...\n", Host::GetCurrentProcessID(), Host::GetCurrentThreadID(),
>> m_mutex);
>> -
>> -    EnterCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex));
>> -    return 0;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// Attempts to lock the mutex owned by this object without blocking.
>> -// If the mutex is already locked, TryLock() will not block waiting
>> -// for the mutex, but will return an error condition.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_trylock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::TryLock(const char *failure_message)
>> -{
>> -    return
>> TryEnterCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex)) == 0;
>> -}
>> -
>> -//----------------------------------------------------------------------
>> -// If the current thread holds the lock on the owned mutex, then
>> -// Unlock() will unlock the mutex. Calling Unlock() on this object
>> -// that the calling thread does not hold will result in undefined
>> -// behavior.
>> -//
>> -// RETURNS
>> -//  The error code from the pthread_mutex_unlock() function call.
>> -//----------------------------------------------------------------------
>> -int
>> -Mutex::Unlock()
>> -{
>> -    LeaveCriticalSection(static_cast<PCRITICAL_SECTION>(m_mutex));
>> -    return 0;
>> -}
>>
>> Modified:
>> lldb/trunk/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> ---
>> lldb/trunk/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
>> (original)
>> +++
>> lldb/trunk/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
>> Thu Jul 28 12:32:20 2016
>> @@ -22,7 +22,6 @@
>>  #include "lldb/Host/FileSpec.h"
>>  #include "lldb/Core/StructuredData.h"
>>  #include "lldb/Core/UUID.h"
>> -#include "lldb/Host/Mutex.h"
>>  #include "lldb/Target/Process.h"
>>  #include "lldb/Utility/SafeMachO.h"
>>
>>
>> Modified: lldb/trunk/source/Plugins/Platform/Linux/PlatformLinux.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Platform/Linux/PlatformLinux.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Platform/Linux/PlatformLinux.cpp (original)
>> +++ lldb/trunk/source/Plugins/Platform/Linux/PlatformLinux.cpp Thu Jul 28
>> 12:32:20 2016
>> @@ -699,7 +699,8 @@ PlatformLinux::DebugProcess (ProcessLaun
>>          // Handle the hijacking of process events.
>>          if (listener_sp)
>>          {
>> -            const StateType state = process_sp->WaitForProcessToStop
>> (NULL, NULL, false, listener_sp);
>> +            const StateType state =
>> +
>> process_sp->WaitForProcessToStop(std::chrono::microseconds(0), NULL, false,
>> listener_sp);
>>
>>              if (state == eStateStopped)
>>              {
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp
>> (original)
>> +++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.cpp
>> Thu Jul 28 12:32:20 2016
>> @@ -210,11 +210,10 @@ CommunicationKDP::GetSequenceMutex(std::
>>      return (lock =
>> std::unique_lock<std::recursive_mutex>(m_sequence_mutex,
>> std::try_to_lock)).owns_lock();
>>  }
>>
>> -
>>  bool
>> -CommunicationKDP::WaitForNotRunningPrivate (const TimeValue *timeout_ptr)
>> +CommunicationKDP::WaitForNotRunningPrivate(const
>> std::chrono::microseconds &timeout)
>>  {
>> -    return m_is_running.WaitForValueEqualTo (false, timeout_ptr, NULL);
>> +    return m_is_running.WaitForValueEqualTo(false, timoeut, NULL);
>>  }
>>
>>  size_t
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h
>> (original)
>> +++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/CommunicationKDP.h
>> Thu Jul 28 12:32:20 2016
>> @@ -249,7 +249,7 @@ protected:
>>                                                  uint32_t timeout_usec);
>>
>>      bool
>> -    WaitForNotRunningPrivate (const lldb_private::TimeValue
>> *timeout_ptr);
>> +    WaitForNotRunningPrivate(const std::chrono::microseconds &timeout);
>>
>>      void
>>      MakeRequestPacketHeader (CommandType request_type,
>>
>> Modified: lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
>> (original)
>> +++ lldb/trunk/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp Thu
>> Jul 28 12:32:20 2016
>> @@ -941,7 +941,7 @@ ProcessKDP::AsyncThread (void *arg)
>>              if (log)
>>                  log->Printf ("ProcessKDP::AsyncThread (pid = %" PRIu64
>> ") listener.WaitForEvent (NULL, event_sp)...",
>>                               pid);
>> -            if (listener_sp->WaitForEvent (NULL, event_sp))
>> +            if (listener_sp->WaitForEvent(stsd::chrono::micrseconds(0),
>> event_sp))
>>              {
>>                  uint32_t event_type = event_sp->GetType();
>>                  if (log)
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> ---
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp
>> (original)
>> +++
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp Thu
>> Jul 28 12:32:20 2016
>> @@ -152,23 +152,22 @@ GDBRemoteCommunication::History::Dump (L
>>  //----------------------------------------------------------------------
>>  // GDBRemoteCommunication constructor
>>  //----------------------------------------------------------------------
>> -GDBRemoteCommunication::GDBRemoteCommunication(const char *comm_name,
>> -                                               const char
>> *listener_name) :
>> -    Communication(comm_name),
>> +GDBRemoteCommunication::GDBRemoteCommunication(const char *comm_name,
>> const char *listener_name)
>> +    : Communication(comm_name),
>>  #ifdef LLDB_CONFIGURATION_DEBUG
>> -    m_packet_timeout (1000),
>> +      m_packet_timeout(1000),
>>  #else
>> -    m_packet_timeout (1),
>> +      m_packet_timeout(1),
>>  #endif
>> -    m_echo_number(0),
>> -    m_supports_qEcho (eLazyBoolCalculate),
>> -    m_sequence_mutex (Mutex::eMutexTypeRecursive),
>> -    m_public_is_running (false),
>> -    m_private_is_running (false),
>> -    m_history (512),
>> -    m_send_acks (true),
>> -    m_compression_type (CompressionType::None),
>> -    m_listen_url ()
>> +      m_echo_number(0),
>> +      m_supports_qEcho(eLazyBoolCalculate),
>> +      m_sequence_mutex(),
>> +      m_public_is_running(false),
>> +      m_private_is_running(false),
>> +      m_history(512),
>> +      m_send_acks(true),
>> +      m_compression_type(CompressionType::None),
>> +      m_listen_url()
>>  {
>>  }
>>
>> @@ -229,7 +228,7 @@ GDBRemoteCommunication::SendNack ()
>>  GDBRemoteCommunication::PacketResult
>>  GDBRemoteCommunication::SendPacket (const char *payload, size_t
>> payload_length)
>>  {
>> -    Mutex::Locker locker(m_sequence_mutex);
>> +    std::lock_guard<std::recursive_mutex> guard(m_sequence_mutex);
>>      return SendPacketNoLock (payload, payload_length);
>>  }
>>
>> @@ -323,20 +322,19 @@ GDBRemoteCommunication::GetAck ()
>>  }
>>
>>  bool
>> -GDBRemoteCommunication::GetSequenceMutex (Mutex::Locker& locker, const
>> char *failure_message)
>> +GDBRemoteCommunication::GetSequenceMutex(std::unique_lock<std::recursive_mutex>
>> &lock, const char *failure_message)
>>  {
>>      if (IsRunning())
>> -        return locker.TryLock (m_sequence_mutex, failure_message);
>> +        return (lock =
>> std::unique_lock<std::recursive_mutex>(m_sequence_mutex,
>> std::try_to_lock)).owns_lock();
>>
>> -    locker.Lock (m_sequence_mutex);
>> +    lock = std::unique_lock<std::recursive_mutex>(m_sequence_mutex);
>>      return true;
>>  }
>>
>> -
>>  bool
>> -GDBRemoteCommunication::WaitForNotRunningPrivate (const TimeValue
>> *timeout_ptr)
>> +GDBRemoteCommunication::WaitForNotRunningPrivate(const
>> std::chrono::microseconds &timeout)
>>  {
>> -    return m_private_is_running.WaitForValueEqualTo (false, timeout_ptr,
>> NULL);
>> +    return m_private_is_running.WaitForValueEqualTo(false, timeout,
>> NULL);
>>  }
>>
>>  GDBRemoteCommunication::PacketResult
>> @@ -356,20 +354,22 @@ GDBRemoteCommunication::ReadPacket (Stri
>>  GDBRemoteCommunication::PacketResult
>>  GDBRemoteCommunication::PopPacketFromQueue (StringExtractorGDBRemote
>> &response, uint32_t timeout_usec)
>>  {
>> -    // Calculate absolute timeout value
>> -    TimeValue timeout = TimeValue::Now();
>> -    timeout.OffsetWithMicroSeconds(timeout_usec);
>> +    auto until = std::chrono::system_clock::now() +
>> std::chrono::microseconds(timeout_usec);
>>
>> -    do
>> +    while (true)
>>      {
>>          // scope for the mutex
>>          {
>>              // lock down the packet queue
>> -            Mutex::Locker locker(m_packet_queue_mutex);
>> +            std::unique_lock<std::mutex> lock(m_packet_queue_mutex);
>>
>>              // Wait on condition variable.
>>              if (m_packet_queue.size() == 0)
>> -                m_condition_queue_not_empty.Wait(m_packet_queue_mutex,
>> &timeout);
>> +            {
>> +                std::cv_status result =
>> m_condition_queue_not_empty.wait_until(lock, until);
>> +                if (result == std::cv_status::timeout)
>> +                  break;
>> +            }
>>
>>              if (m_packet_queue.size() > 0)
>>              {
>> @@ -389,7 +389,7 @@ GDBRemoteCommunication::PopPacketFromQue
>>               return PacketResult::ErrorDisconnected;
>>
>>        // Loop while not timed out
>> -    } while (TimeValue::Now() < timeout);
>> +    }
>>
>>      return PacketResult::ErrorReplyTimeout;
>>  }
>> @@ -1479,12 +1479,11 @@ void GDBRemoteCommunication::AppendBytes
>>              // scope for the mutex
>>              {
>>                  // lock down the packet queue
>> -                Mutex::Locker locker(m_packet_queue_mutex);
>> +                std::lock_guard<std::mutex> guard(m_packet_queue_mutex);
>>                  // push a new packet into the queue
>>                  m_packet_queue.push(packet);
>>                  // Signal condition variable that we have a packet
>> -                m_condition_queue_not_empty.Signal();
>> -
>> +                m_condition_queue_not_empty.notify_one();
>>              }
>>          }
>>
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
>> (original)
>> +++ lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.h
>> Thu Jul 28 12:32:20 2016
>> @@ -12,6 +12,8 @@
>>
>>  // C Includes
>>  // C++ Includes
>> +#include <condition_variable>
>> +#include <mutex>
>>  #include <string>
>>  #include <queue>
>>  #include <vector>
>> @@ -22,7 +24,6 @@
>>  #include "lldb/Core/Communication.h"
>>  #include "lldb/Core/Listener.h"
>>  #include "lldb/Host/HostThread.h"
>> -#include "lldb/Host/Mutex.h"
>>  #include "lldb/Host/Predicate.h"
>>  #include "lldb/Host/TimeValue.h"
>>  #include "lldb/Interpreter/Args.h"
>> @@ -114,7 +115,7 @@ public:
>>                          size_t payload_length);
>>
>>      bool
>> -    GetSequenceMutex(Mutex::Locker& locker, const char *failure_message
>> = nullptr);
>> +    GetSequenceMutex(std::unique_lock<std::recursive_mutex> &lock, const
>> char *failure_message = nullptr);
>>
>>      PacketType
>>      CheckForPacket (const uint8_t *src,
>> @@ -285,9 +286,9 @@ protected:
>>      uint32_t m_echo_number;
>>      LazyBool m_supports_qEcho;
>>  #ifdef ENABLE_MUTEX_ERROR_CHECKING
>> -    TrackingMutex m_sequence_mutex;
>> +#error TrackingMutex is no longer supported
>>  #else
>> -    Mutex m_sequence_mutex;    // Restrict access to sending/receiving
>> packets to a single thread at a time
>> +    std::recursive_mutex m_sequence_mutex; // Restrict access to
>> sending/receiving packets to a single thread at a time
>>  #endif
>>      Predicate<bool> m_public_is_running;
>>      Predicate<bool> m_private_is_running;
>> @@ -320,7 +321,7 @@ protected:
>>                                                  bool sync_on_timeout);
>>
>>      bool
>> -    WaitForNotRunningPrivate (const TimeValue *timeout_ptr);
>> +    WaitForNotRunningPrivate(const std::chrono::microseconds &timeout);
>>
>>      bool
>>      CompressionIsEnabled ()
>> @@ -364,8 +365,8 @@ protected:
>>
>>  private:
>>      std::queue<StringExtractorGDBRemote> m_packet_queue; // The packet
>> queue
>> -    lldb_private::Mutex m_packet_queue_mutex;            // Mutex for
>> accessing queue
>> -    Condition m_condition_queue_not_empty;               // Condition
>> variable to wait for packets
>> +    std::mutex m_packet_queue_mutex;                     // Mutex for
>> accessing queue
>> +    std::condition_variable m_condition_queue_not_empty; // Condition
>> variable to wait for packets
>>
>>      HostThread m_listen_thread;
>>      std::string m_listen_url;
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> ---
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
>> (original)
>> +++
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
>> Thu Jul 28 12:32:20 2016
>> @@ -720,9 +720,10 @@ GDBRemoteCommunicationClient::SendPacket
>>      std::string &response_string
>>  )
>>  {
>> -    Mutex::Locker locker;
>> -    if (!GetSequenceMutex(locker,
>> -
>> "ProcessGDBRemote::SendPacketsAndConcatenateResponses() failed due to not
>> getting the sequence mutex"))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (!GetSequenceMutex(
>> +            lock,
>> +            "ProcessGDBRemote::SendPacketsAndConcatenateResponses()
>> failed due to not getting the sequence mutex"))
>>      {
>>          Log *log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet
>> (GDBR_LOG_PROCESS | GDBR_LOG_PACKETS));
>>          if (log)
>> @@ -821,7 +822,7 @@ GDBRemoteCommunicationClient::SendPacket
>>  )
>>  {
>>      PacketResult packet_result = PacketResult::ErrorSendFailed;
>> -    Mutex::Locker locker;
>> +    std::unique_lock<std::recursive_mutex> lock;
>>      Log *log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet
>> (GDBR_LOG_PROCESS));
>>
>>      // In order to stop async notifications from being processed in the
>> middle of the
>> @@ -829,7 +830,7 @@ GDBRemoteCommunicationClient::SendPacket
>>      static ListenerSP
>> hijack_listener_sp(Listener::MakeListener("lldb.NotifyHijacker"));
>>      HijackBroadcaster(hijack_listener_sp,
>> eBroadcastBitGdbReadThreadGotNotify);
>>
>> -    if (GetSequenceMutex (locker))
>> +    if (GetSequenceMutex(lock))
>>      {
>>          packet_result = SendPacketAndWaitForResponseNoLock (payload,
>> payload_length, response);
>>      }
>> @@ -848,19 +849,22 @@ GDBRemoteCommunicationClient::SendPacket
>>                      log->Printf ("async: async packet = %s",
>> m_async_packet.c_str());
>>
>>                  bool timed_out = false;
>> -                if (SendInterrupt(locker, 2, timed_out))
>> +                if (SendInterrupt(lock, 2, timed_out))
>>                  {
>>                      if (m_interrupt_sent)
>>                      {
>>                          m_interrupt_sent = false;
>> -                        TimeValue timeout_time;
>> -                        timeout_time = TimeValue::Now();
>> -                        timeout_time.OffsetWithSeconds
>> (m_packet_timeout);
>> +
>> +
>> std::chrono::time_point<std::chrono::system_clock> until;
>> +                        until = std::chrono::system_clock::now() +
>> std::chrono::seconds(m_packet_timeout);
>>
>>                          if (log)
>>                              log->Printf ("async: sent interrupt");
>>
>> -                        if (m_async_packet_predicate.WaitForValueEqualTo
>> (false, &timeout_time, &timed_out))
>> +                        if (m_async_packet_predicate.WaitForValueEqualTo(
>> +                                false,
>> std::chrono::duration_cast<std::chrono::microseconds>(
>> +                                           until -
>> std::chrono::system_clock::now()),
>> +                                &timed_out))
>>                          {
>>                              if (log)
>>                                  log->Printf ("async: got response");
>> @@ -876,7 +880,10 @@ GDBRemoteCommunicationClient::SendPacket
>>                          }
>>
>>                          // Make sure we wait until the continue packet
>> has been sent again...
>> -                        if (m_private_is_running.WaitForValueEqualTo
>> (true, &timeout_time, &timed_out))
>> +                        if (m_private_is_running.WaitForValueEqualTo(
>> +                                true,
>> std::chrono::duration_cast<std::chrono::microseconds>(
>> +                                          until -
>> std::chrono::system_clock::now()),
>> +                                &timed_out))
>>                          {
>>                              if (log)
>>                              {
>> @@ -1045,7 +1052,7 @@ GDBRemoteCommunicationClient::SendvContP
>>          log->Printf("GDBRemoteCommunicationClient::%s ()", __FUNCTION__);
>>
>>      // we want to lock down packet sending while we continue
>> -    Mutex::Locker locker(m_sequence_mutex);
>> +    std::lock_guard<std::recursive_mutex> guard(m_sequence_mutex);
>>
>>      // here we broadcast this before we even send the packet!!
>>      // this signals doContinue() to exit
>> @@ -1094,7 +1101,7 @@ GDBRemoteCommunicationClient::SendContin
>>      if (log)
>>          log->Printf ("GDBRemoteCommunicationClient::%s ()",
>> __FUNCTION__);
>>
>> -    Mutex::Locker locker(m_sequence_mutex);
>> +    std::lock_guard<std::recursive_mutex> guard(m_sequence_mutex);
>>      StateType state = eStateRunning;
>>
>>      m_public_is_running.SetValue (true, eBroadcastNever);
>> @@ -1394,8 +1401,8 @@ GDBRemoteCommunicationClient::SendAsyncS
>>      std::lock_guard<std::recursive_mutex> guard(m_async_mutex);
>>      m_async_signal = signo;
>>      bool timed_out = false;
>> -    Mutex::Locker locker;
>> -    if (SendInterrupt (locker, 1, timed_out))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (SendInterrupt(lock, 1, timed_out))
>>          return true;
>>      m_async_signal = -1;
>>      return false;
>> @@ -1412,12 +1419,8 @@ GDBRemoteCommunicationClient::SendAsyncS
>>  // (gdb remote protocol requires this), and do what we need to do, then
>> resume.
>>
>>  bool
>> -GDBRemoteCommunicationClient::SendInterrupt
>> -(
>> -    Mutex::Locker& locker,
>> -    uint32_t seconds_to_wait_for_stop,
>> -    bool &timed_out
>> -)
>> +GDBRemoteCommunicationClient::SendInterrupt(std::unique_lock<std::recursive_mutex>
>> &lock,
>> +                                            uint32_t
>> seconds_to_wait_for_stop, bool &timed_out)
>>  {
>>      timed_out = false;
>>      Log *log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet
>> (GDBR_LOG_PROCESS | GDBR_LOG_PACKETS));
>> @@ -1425,7 +1428,7 @@ GDBRemoteCommunicationClient::SendInterr
>>      if (IsRunning())
>>      {
>>          // Only send an interrupt if our debugserver is running...
>> -        if (GetSequenceMutex (locker))
>> +        if (GetSequenceMutex(lock))
>>          {
>>              if (log)
>>                  log->Printf ("SendInterrupt () - got sequence mutex
>> without having to interrupt");
>> @@ -1444,13 +1447,8 @@ GDBRemoteCommunicationClient::SendInterr
>>                  m_interrupt_sent = true;
>>                  if (seconds_to_wait_for_stop)
>>                  {
>> -                    TimeValue timeout;
>> -                    if (seconds_to_wait_for_stop)
>> -                    {
>> -                        timeout = TimeValue::Now();
>> -                        timeout.OffsetWithSeconds
>> (seconds_to_wait_for_stop);
>> -                    }
>> -                    if (m_private_is_running.WaitForValueEqualTo (false,
>> &timeout, &timed_out))
>> +                    if (m_private_is_running.WaitForValueEqualTo(false,
>> std::chrono::seconds(seconds_to_wait_for_stop),
>> +
>>  &timed_out))
>>                      {
>>                          if (log)
>>                              log->PutCString ("SendInterrupt () - sent
>> interrupt, private state stopped");
>> @@ -3653,10 +3651,10 @@ size_t
>>  GDBRemoteCommunicationClient::GetCurrentThreadIDs
>> (std::vector<lldb::tid_t> &thread_ids,
>>                                                     bool
>> &sequence_mutex_unavailable)
>>  {
>> -    Mutex::Locker locker;
>> +    std::unique_lock<std::recursive_mutex> lock;
>>      thread_ids.clear();
>> -
>> -    if (GetSequenceMutex (locker, "ProcessGDBRemote::UpdateThreadList()
>> failed due to not getting the sequence mutex"))
>> +
>> +    if (GetSequenceMutex(lock, "ProcessGDBRemote::UpdateThreadList()
>> failed due to not getting the sequence mutex"))
>>      {
>>          sequence_mutex_unavailable = false;
>>          StringExtractorGDBRemote response;
>> @@ -4203,8 +4201,8 @@ GDBRemoteCommunicationClient::AvoidGPack
>>  bool
>>  GDBRemoteCommunicationClient::ReadRegister(lldb::tid_t tid, uint32_t
>> reg, StringExtractorGDBRemote &response)
>>  {
>> -    Mutex::Locker locker;
>> -    if (GetSequenceMutex (locker, "Didn't get sequence mutex for p
>> packet."))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (GetSequenceMutex(lock, "Didn't get sequence mutex for p
>> packet."))
>>      {
>>          const bool thread_suffix_supported = GetThreadSuffixSupported();
>>
>> @@ -4228,8 +4226,8 @@ GDBRemoteCommunicationClient::ReadRegist
>>  bool
>>  GDBRemoteCommunicationClient::ReadAllRegisters (lldb::tid_t tid,
>> StringExtractorGDBRemote &response)
>>  {
>> -    Mutex::Locker locker;
>> -    if (GetSequenceMutex (locker, "Didn't get sequence mutex for g
>> packet."))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (GetSequenceMutex(lock, "Didn't get sequence mutex for g
>> packet."))
>>      {
>>          const bool thread_suffix_supported = GetThreadSuffixSupported();
>>
>> @@ -4256,8 +4254,8 @@ GDBRemoteCommunicationClient::SaveRegist
>>          return false;
>>
>>      m_supports_QSaveRegisterState = eLazyBoolYes;
>> -    Mutex::Locker locker;
>> -    if (GetSequenceMutex (locker, "Didn't get sequence mutex for
>> QSaveRegisterState."))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (GetSequenceMutex(lock, "Didn't get sequence mutex for
>> QSaveRegisterState."))
>>      {
>>          const bool thread_suffix_supported = GetThreadSuffixSupported();
>>          if (thread_suffix_supported || SetCurrentThread(tid))
>> @@ -4298,9 +4296,9 @@ GDBRemoteCommunicationClient::RestoreReg
>>      // order to be useful
>>      if (m_supports_QSaveRegisterState == eLazyBoolNo)
>>          return false;
>> -
>> -    Mutex::Locker locker;
>> -    if (GetSequenceMutex (locker, "Didn't get sequence mutex for
>> QRestoreRegisterState."))
>> +
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (GetSequenceMutex(lock, "Didn't get sequence mutex for
>> QRestoreRegisterState."))
>>      {
>>          const bool thread_suffix_supported = GetThreadSuffixSupported();
>>          if (thread_suffix_supported || SetCurrentThread(tid))
>> @@ -4530,8 +4528,10 @@ GDBRemoteCommunicationClient::ServeSymbo
>>
>>      if (m_supports_qSymbol && m_qSymbol_requests_done == false)
>>      {
>> -        Mutex::Locker locker;
>> -        if (GetSequenceMutex(locker,
>> "GDBRemoteCommunicationClient::ServeSymbolLookups() failed due to not
>> getting the sequence mutex"))
>> +        std::unique_lock<std::recursive_mutex> lock;
>> +        if (GetSequenceMutex(
>> +                lock,
>> +                "GDBRemoteCommunicationClient::ServeSymbolLookups()
>> failed due to not getting the sequence mutex"))
>>          {
>>              StreamString packet;
>>              packet.PutCString ("qSymbol::");
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> ---
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
>> (original)
>> +++
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
>> Thu Jul 28 12:32:20 2016
>> @@ -105,9 +105,7 @@ public:
>>      SendAsyncSignal (int signo);
>>
>>      bool
>> -    SendInterrupt (Mutex::Locker &locker,
>> -                   uint32_t seconds_to_wait_for_stop,
>> -                   bool &timed_out);
>> +    SendInterrupt(std::unique_lock<std::recursive_mutex> &lock, uint32_t
>> seconds_to_wait_for_stop, bool &timed_out);
>>
>>      lldb::pid_t
>>      GetCurrentProcessID (bool allow_lazy = true);
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> ---
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
>> (original)
>> +++
>> lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
>> Thu Jul 28 12:32:20 2016
>> @@ -401,8 +401,8 @@ GDBRemoteRegisterContext::WriteRegisterB
>>                                    reg_info->byte_size,          // dst
>> length
>>                                    m_reg_data.GetByteOrder()))   // dst
>> byte order
>>      {
>> -        Mutex::Locker locker;
>> -        if (gdb_comm.GetSequenceMutex (locker, "Didn't get sequence
>> mutex for write register."))
>> +        std::unique_lock<std::recursive_mutex> lock;
>> +        if (gdb_comm.GetSequenceMutex(lock, "Didn't get sequence mutex
>> for write register."))
>>          {
>>              const bool thread_suffix_supported =
>> gdb_comm.GetThreadSuffixSupported();
>>              ProcessSP process_sp (m_thread.GetProcess());
>> @@ -570,8 +570,8 @@ GDBRemoteRegisterContext::ReadAllRegiste
>>
>>      const bool use_g_packet = gdb_comm.AvoidGPackets ((ProcessGDBRemote
>> *)process) == false;
>>
>> -    Mutex::Locker locker;
>> -    if (gdb_comm.GetSequenceMutex (locker, "Didn't get sequence mutex
>> for read all registers."))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (gdb_comm.GetSequenceMutex(lock, "Didn't get sequence mutex for
>> read all registers."))
>>      {
>>          SyncThreadState(process);
>>
>> @@ -679,8 +679,8 @@ GDBRemoteRegisterContext::WriteAllRegist
>>      const bool use_g_packet = gdb_comm.AvoidGPackets ((ProcessGDBRemote
>> *)process) == false;
>>
>>      StringExtractorGDBRemote response;
>> -    Mutex::Locker locker;
>> -    if (gdb_comm.GetSequenceMutex (locker, "Didn't get sequence mutex
>> for write all registers."))
>> +    std::unique_lock<std::recursive_mutex> lock;
>> +    if (gdb_comm.GetSequenceMutex(lock, "Didn't get sequence mutex for
>> write all registers."))
>>      {
>>          const bool thread_suffix_supported =
>> gdb_comm.GetThreadSuffixSupported();
>>          ProcessSP process_sp (m_thread.GetProcess());
>>
>> Modified:
>> lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
>> (original)
>> +++ lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp Thu
>> Jul 28 12:32:20 2016
>> @@ -1590,9 +1590,6 @@ ProcessGDBRemote::DoResume ()
>>          else
>>          {
>>              EventSP event_sp;
>> -            TimeValue timeout;
>> -            timeout = TimeValue::Now();
>> -            timeout.OffsetWithSeconds (5);
>>              if (!m_async_thread.IsJoinable())
>>              {
>>                  error.SetErrorString ("Trying to resume but the async
>> thread is dead.");
>> @@ -1603,7 +1600,7 @@ ProcessGDBRemote::DoResume ()
>>
>>              m_async_broadcaster.BroadcastEvent
>> (eBroadcastBitAsyncContinue, new EventDataBytes (continue_packet.GetData(),
>> continue_packet.GetSize()));
>>
>> -            if (listener_sp->WaitForEvent (&timeout, event_sp) == false)
>> +            if (listener_sp->WaitForEvent(std::chrono::seconds(5),
>> event_sp) == false)
>>              {
>>                  error.SetErrorString("Resume timed out.");
>>                  if (log)
>> @@ -2717,7 +2714,7 @@ ProcessGDBRemote::DoHalt (bool &caused_s
>>      Error error;
>>
>>      bool timed_out = false;
>> -    Mutex::Locker locker;
>> +    std::unique_lock<std::recursive_mutex> lock;
>>
>>      if (m_public_state.GetValue() == eStateAttaching)
>>      {
>> @@ -2727,7 +2724,7 @@ ProcessGDBRemote::DoHalt (bool &caused_s
>>      }
>>      else
>>      {
>> -        if (!m_gdb_comm.SendInterrupt (locker, 2, timed_out))
>> +        if (!m_gdb_comm.SendInterrupt(lock, 2, timed_out))
>>          {
>>              if (timed_out)
>>                  error.SetErrorString("timed out sending interrupt
>> packet");
>> @@ -3860,7 +3857,7 @@ ProcessGDBRemote::AsyncThread (void *arg
>>      {
>>          if (log)
>>              log->Printf ("ProcessGDBRemote::%s (arg = %p, pid = %"
>> PRIu64 ") listener.WaitForEvent (NULL, event_sp)...", __FUNCTION__, arg,
>> process->GetID());
>> -        if (process->m_async_listener_sp->WaitForEvent (NULL, event_sp))
>> +        if
>> (process->m_async_listener_sp->WaitForEvent(std::chrono::microseconds(0),
>> event_sp))
>>          {
>>              const uint32_t event_type = event_sp->GetType();
>>              if (event_sp->BroadcasterIs (&process->m_async_broadcaster))
>>
>> Modified: lldb/trunk/source/Target/Process.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/Process.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Target/Process.cpp (original)
>> +++ lldb/trunk/source/Target/Process.cpp Thu Jul 28 12:32:20 2016
>> @@ -978,10 +978,8 @@ Process::SyncIOHandler (uint32_t iohandl
>>      if (!m_process_input_reader)
>>          return;
>>
>> -    TimeValue timeout = TimeValue::Now();
>> -    timeout.OffsetWithMicroSeconds(timeout_msec*1000);
>>      uint32_t new_iohandler_id = 0;
>> -    m_iohandler_sync.WaitForValueNotEqualTo(iohandler_id,
>> new_iohandler_id, &timeout);
>> +    m_iohandler_sync.WaitForValueNotEqualTo(iohandler_id,
>> new_iohandler_id, std::chrono::milliseconds(timeout_msec));
>>
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_PROCESS));
>>      if (log)
>> @@ -989,12 +987,8 @@ Process::SyncIOHandler (uint32_t iohandl
>>  }
>>
>>  StateType
>> -Process::WaitForProcessToStop (const TimeValue *timeout,
>> -                               EventSP *event_sp_ptr,
>> -                               bool wait_always,
>> -                               ListenerSP hijack_listener_sp,
>> -                               Stream *stream,
>> -                               bool use_run_lock)
>> +Process::WaitForProcessToStop(const std::chrono::microseconds &timeout,
>> EventSP *event_sp_ptr, bool wait_always,
>> +                              ListenerSP hijack_listener_sp, Stream
>> *stream, bool use_run_lock)
>>  {
>>      // We can't just wait for a "stopped" event, because the stopped
>> event may have restarted the target.
>>      // We have to actually check each event, and in the case of a
>> stopped event check the restarted flag
>> @@ -1009,8 +1003,7 @@ Process::WaitForProcessToStop (const Tim
>>
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_PROCESS));
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p)", __FUNCTION__,
>> -                     static_cast<const void*>(timeout));
>> +        log->Printf("Process::%s (timeout = %llu)", __FUNCTION__,
>> static_cast<unsigned long long>(timeout.count()));
>>
>>      if (!wait_always &&
>>          StateIsStoppedState(state, true) &&
>> @@ -1029,7 +1022,7 @@ Process::WaitForProcessToStop (const Tim
>>      while (state != eStateInvalid)
>>      {
>>          EventSP event_sp;
>> -        state = WaitForStateChangedEvents (timeout, event_sp,
>> hijack_listener_sp);
>> +        state = WaitForStateChangedEvents(std::chrono::milliseconds(0),
>> event_sp, hijack_listener_sp);
>>          if (event_sp_ptr && event_sp)
>>              *event_sp_ptr = event_sp;
>>
>> @@ -1265,8 +1258,7 @@ Process::HandleProcessStateChangedEvent
>>  }
>>
>>  StateType
>> -Process::WaitForState(const TimeValue *timeout,
>> -                      const StateType *match_states,
>> +Process::WaitForState(const std::chrono::microseconds &timeout, const
>> StateType *match_states,
>>                        const uint32_t num_match_states)
>>  {
>>      EventSP event_sp;
>> @@ -1307,13 +1299,14 @@ Process::RestoreProcessEvents ()
>>  }
>>
>>  StateType
>> -Process::WaitForStateChangedEvents (const TimeValue *timeout, EventSP
>> &event_sp, ListenerSP hijack_listener_sp)
>> +Process::WaitForStateChangedEvents(const std::chrono::microseconds
>> &timeout, EventSP &event_sp,
>> +                                   ListenerSP hijack_listener_sp)
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_PROCESS));
>>
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p, event_sp)...",
>> __FUNCTION__,
>> -                     static_cast<const void*>(timeout));
>> +        log->Printf("Process::%s (timeout = %llu, event_sp)...",
>> __FUNCTION__,
>> +                    static_cast<unsigned long long>(timeout.count()));
>>
>>      ListenerSP listener_sp = hijack_listener_sp;
>>      if (!listener_sp)
>> @@ -1332,9 +1325,8 @@ Process::WaitForStateChangedEvents (cons
>>      }
>>
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p, event_sp) => %s",
>> -                     __FUNCTION__, static_cast<const void*>(timeout),
>> -                     StateAsCString(state));
>> +        log->Printf("Process::%s (timeout = %llu, event_sp) => %s",
>> __FUNCTION__,
>> +                    static_cast<unsigned long long>(timeout.count()),
>> StateAsCString(state));
>>      return state;
>>  }
>>
>> @@ -1367,13 +1359,13 @@ Process::PeekAtStateChangedEvents ()
>>  }
>>
>>  StateType
>> -Process::WaitForStateChangedEventsPrivate (const TimeValue *timeout,
>> EventSP &event_sp)
>> +Process::WaitForStateChangedEventsPrivate(const
>> std::chrono::microseconds &timeout, EventSP &event_sp)
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_PROCESS));
>>
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p, event_sp)...",
>> __FUNCTION__,
>> -                     static_cast<const void*>(timeout));
>> +        log->Printf("Process::%s (timeout = %llu, event_sp)...",
>> __FUNCTION__,
>> +                    static_cast<unsigned long long>(timeout.count()));
>>
>>      StateType state = eStateInvalid;
>>      if (m_private_state_listener_sp->WaitForEventForBroadcasterWithType
>> (timeout,
>> @@ -1387,20 +1379,20 @@ Process::WaitForStateChangedEventsPrivat
>>      // to the command-line, and that could disable the log, which would
>> render the
>>      // log we got above invalid.
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p, event_sp) => %s",
>> -                     __FUNCTION__, static_cast<const void *>(timeout),
>> -                     state == eStateInvalid ? "TIMEOUT" :
>> StateAsCString(state));
>> +        log->Printf("Process::%s (timeout = %llu, event_sp) => %s",
>> __FUNCTION__,
>> +                    static_cast<unsigned long long>(timeout.count()),
>> +                    state == eStateInvalid ? "TIMEOUT" :
>> StateAsCString(state));
>>      return state;
>>  }
>>
>>  bool
>> -Process::WaitForEventsPrivate (const TimeValue *timeout, EventSP
>> &event_sp, bool control_only)
>> +Process::WaitForEventsPrivate(const std::chrono::microseconds &timeout,
>> EventSP &event_sp, bool control_only)
>>  {
>>      Log *log(lldb_private::GetLogIfAllCategoriesSet
>> (LIBLLDB_LOG_PROCESS));
>>
>>      if (log)
>> -        log->Printf ("Process::%s (timeout = %p, event_sp)...",
>> __FUNCTION__,
>> -                     static_cast<const void*>(timeout));
>> +        log->Printf("Process::%s (timeout = %llu, event_sp)...",
>> __FUNCTION__,
>> +                    static_cast<unsigned long long>(timeout.count()));
>>
>>      if (control_only)
>>          return
>> m_private_state_listener_sp->WaitForEventForBroadcaster(timeout,
>> &m_private_state_control_broadcaster, event_sp);
>> @@ -1751,7 +1743,7 @@ Process::ResumeSynchronous (Stream *stre
>>      Error error = PrivateResume();
>>      if (error.Success())
>>      {
>> -        StateType state = WaitForProcessToStop (NULL, NULL, true,
>> listener_sp, stream);
>> +        StateType state =
>> WaitForProcessToStop(std::chrono::microseconds(0), NULL, true, listener_sp,
>> stream);
>>          const bool must_be_alive = false; // eStateExited is ok, so this
>> must be false
>>          if (!StateIsStoppedState(state, must_be_alive))
>>              error.SetErrorStringWithFormat("process not in stopped state
>> after synchronous resume: %s", StateAsCString(state));
>> @@ -2891,7 +2883,7 @@ Process::DisableWatchpoint (Watchpoint *
>>  }
>>
>>  StateType
>> -Process::WaitForProcessStopPrivate (const TimeValue *timeout, EventSP
>> &event_sp)
>> +Process::WaitForProcessStopPrivate(const std::chrono::microseconds
>> &timeout, EventSP &event_sp)
>>  {
>>      StateType state;
>>      // Now wait for the process to launch and return control to us, and
>> then
>> @@ -2987,10 +2979,7 @@ Process::Launch (ProcessLaunchInfo &laun
>>                  else
>>                  {
>>                      EventSP event_sp;
>> -                    TimeValue timeout_time;
>> -                    timeout_time = TimeValue::Now();
>> -                    timeout_time.OffsetWithSeconds(10);
>> -                    StateType state =
>> WaitForProcessStopPrivate(&timeout_time, event_sp);
>> +                    StateType state =
>> WaitForProcessStopPrivate(std::chrono::seconds(10), event_sp);
>>
>>                      if (state == eStateInvalid || !event_sp)
>>                      {
>> @@ -3083,7 +3072,7 @@ Process::LoadCore ()
>>
>>          // Wait indefinitely for a stopped event since we just posted
>> one above...
>>          lldb::EventSP event_sp;
>> -        listener_sp->WaitForEvent (nullptr, event_sp);
>> +        listener_sp->WaitForEvent(std::chrono::microseconds(0),
>> event_sp);
>>          StateType state =
>> ProcessEventData::GetStateFromEvent(event_sp.get());
>>
>>          if (!StateIsStoppedState (state, false))
>> @@ -3502,8 +3491,8 @@ Process::ConnectRemote (Stream *strm, co
>>          if (GetID() != LLDB_INVALID_PROCESS_ID)
>>          {
>>              EventSP event_sp;
>> -            StateType state = WaitForProcessStopPrivate(nullptr,
>> event_sp);
>> -
>> +            StateType state =
>> WaitForProcessStopPrivate(std::chrono::microseconds(0), event_sp);
>> +
>>              if (state == eStateStopped || state == eStateCrashed)
>>              {
>>                  // If we attached and actually have a process on the
>> other end, then
>> @@ -3612,11 +3601,8 @@ Process::Halt (bool clear_thread_plans,
>>      }
>>
>>      // Wait for 10 second for the process to stop.
>> -    TimeValue timeout_time;
>> -    timeout_time = TimeValue::Now();
>> -    timeout_time.OffsetWithSeconds(10);
>> -    StateType state = WaitForProcessToStop(&timeout_time, &event_sp,
>> true, halt_listener_sp,
>> -                                           nullptr, use_run_lock);
>> +    StateType state =
>> +        WaitForProcessToStop(std::chrono::seconds(10), &event_sp, true,
>> halt_listener_sp, nullptr, use_run_lock);
>>      RestoreProcessEvents();
>>
>>      if (state == eStateInvalid || ! event_sp)
>> @@ -3649,10 +3635,7 @@ Process::StopForDestroyOrDetach(lldb::Ev
>>          SendAsyncInterrupt();
>>
>>          // Consume the interrupt event.
>> -        TimeValue timeout (TimeValue::Now());
>> -        timeout.OffsetWithSeconds(10);
>> -
>> -        StateType state = WaitForProcessToStop (&timeout,
>> &exit_event_sp, true, listener_sp);
>> +        StateType state = WaitForProcessToStop(std::chrono::seconds(10),
>> &exit_event_sp, true, listener_sp);
>>
>>          RestoreProcessEvents();
>>
>> @@ -4125,12 +4108,9 @@ Process::ControlPrivateStateThread (uint
>>              while (!receipt_received)
>>              {
>>                  bool timed_out = false;
>> -                TimeValue timeout_time;
>> -                timeout_time = TimeValue::Now();
>> -                timeout_time.OffsetWithSeconds(2);
>>                  // Check for a receipt for 2 seconds and then check if
>> the private state
>>                  // thread is still around.
>> -                receipt_received =
>> event_receipt_sp->WaitForEventReceived (&timeout_time, &timed_out);
>> +                receipt_received =
>> event_receipt_sp->WaitForEventReceived(std::chrono::seconds(2), &timed_out);
>>                  if (!receipt_received)
>>                  {
>>                      // Check if the private state thread is still
>> around. If it isn't then we are done waiting
>> @@ -4326,7 +4306,7 @@ Process::RunPrivateStateThread (bool is_
>>      while (!exit_now)
>>      {
>>          EventSP event_sp;
>> -        WaitForEventsPrivate(nullptr, event_sp, control_only);
>> +        WaitForEventsPrivate(std::chrono::microseconds(0), event_sp,
>> control_only);
>>          if
>> (event_sp->BroadcasterIs(&m_private_state_control_broadcaster))
>>          {
>>              if (log)
>> @@ -5351,9 +5331,6 @@ Process::RunThreadPlan(ExecutionContext
>>          lldb::EventSP event_sp;
>>          lldb::StateType stop_state = lldb::eStateInvalid;
>>
>> -        TimeValue* timeout_ptr = nullptr;
>> -        TimeValue real_timeout;
>> -
>>          bool before_first_timeout = true;  // This is set to false the
>> first time that we have to halt the target.
>>          bool do_resume = true;
>>          bool handle_running_event = true;
>> @@ -5454,6 +5431,7 @@ Process::RunThreadPlan(ExecutionContext
>>  #endif
>>          TimeValue one_thread_timeout;
>>          TimeValue final_timeout;
>> +        std::chrono::microseconds timeout = std::chrono::microseconds(0);
>>
>>          while (true)
>>          {
>> @@ -5484,10 +5462,7 @@ Process::RunThreadPlan(ExecutionContext
>>                      }
>>                  }
>>
>> -                TimeValue resume_timeout = TimeValue::Now();
>> -                resume_timeout.OffsetWithMicroSeconds(500000);
>> -
>> -                got_event = listener_sp->WaitForEvent(&resume_timeout,
>> event_sp);
>> +                got_event =
>> listener_sp->WaitForEvent(std::chrono::microseconds(500000), event_sp);
>>                  if (!got_event)
>>                  {
>>                      if (log)
>> @@ -5552,33 +5527,16 @@ Process::RunThreadPlan(ExecutionContext
>>              if (before_first_timeout)
>>              {
>>                  if (options.GetTryAllThreads())
>> -                {
>> -                    one_thread_timeout = TimeValue::Now();
>> -
>> one_thread_timeout.OffsetWithMicroSeconds(one_thread_timeout_usec);
>> -                    timeout_ptr = &one_thread_timeout;
>> -                }
>> +                    timeout =
>> std::chrono::microseconds(one_thread_timeout_usec);
>>                  else
>> -                {
>> -                    if (timeout_usec == 0)
>> -                        timeout_ptr = nullptr;
>> -                    else
>> -                    {
>> -                        final_timeout = TimeValue::Now();
>> -                        final_timeout.OffsetWithMicroSeconds
>> (timeout_usec);
>> -                        timeout_ptr = &final_timeout;
>> -                    }
>> -                }
>> +                    timeout = std::chrono::microseconds(timeout_usec);
>>              }
>>              else
>>              {
>>                  if (timeout_usec == 0)
>> -                    timeout_ptr = nullptr;
>> +                    timeout = std::chrono::microseconds(0);
>>                  else
>> -                {
>> -                    final_timeout = TimeValue::Now();
>> -                    final_timeout.OffsetWithMicroSeconds
>> (all_threads_timeout_usec);
>> -                    timeout_ptr = &final_timeout;
>> -                }
>> +                    timeout =
>> std::chrono::microseconds(all_threads_timeout_usec);
>>              }
>>
>>              do_resume = true;
>> @@ -5589,11 +5547,15 @@ Process::RunThreadPlan(ExecutionContext
>>
>>              if (log)
>>              {
>> -                if (timeout_ptr)
>> +                if (timeout.count())
>>                  {
>> -                    log->Printf ("Process::RunThreadPlan(): about to
>> wait - now is %" PRIu64 " - endpoint is %" PRIu64,
>> -
>>  TimeValue::Now().GetAsMicroSecondsSinceJan1_1970(),
>> -
>>  timeout_ptr->GetAsMicroSecondsSinceJan1_1970());
>> +                    log->Printf(
>> +                        "Process::RunThreadPlan(): about to wait - now
>> is %llu - endpoint is %llu",
>> +                        static_cast<unsigned long
>> long>(std::chrono::system_clock::now().time_since_epoch().count()),
>> +                        static_cast<unsigned long long>(
>> +
>> std::chrono::time_point<std::chrono::system_clock,
>> std::chrono::microseconds>(timeout)
>> +                                .time_since_epoch()
>> +                                .count()));
>>                  }
>>                  else
>>                  {
>> @@ -5611,7 +5573,7 @@ Process::RunThreadPlan(ExecutionContext
>>              }
>>              else
>>  #endif
>> -            got_event = listener_sp->WaitForEvent (timeout_ptr,
>> event_sp);
>> +                got_event = listener_sp->WaitForEvent(timeout, event_sp);
>>
>>              if (got_event)
>>              {
>> @@ -5810,10 +5772,7 @@ Process::RunThreadPlan(ExecutionContext
>>                          if (log)
>>                              log->PutCString ("Process::RunThreadPlan():
>> Halt succeeded.");
>>
>> -                        real_timeout = TimeValue::Now();
>> -                        real_timeout.OffsetWithMicroSeconds(500000);
>> -
>> -                        got_event =
>> listener_sp->WaitForEvent(&real_timeout, event_sp);
>> +                        got_event =
>> listener_sp->WaitForEvent(std::chrono::microseconds(500000), event_sp);
>>
>>                          if (got_event)
>>                          {
>>
>> Modified: lldb/trunk/source/Target/Target.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/Target.cpp?rev=277011&r1=277010&r2=277011&view=diff
>>
>> ==============================================================================
>> --- lldb/trunk/source/Target/Target.cpp (original)
>> +++ lldb/trunk/source/Target/Target.cpp Thu Jul 28 12:32:20 2016
>> @@ -3103,8 +3103,9 @@ Target::Launch (ProcessLaunchInfo &launc
>>                  m_process_sp->HijackProcessEvents(hijack_listener_sp);
>>              }
>>
>> -            StateType state =
>> m_process_sp->WaitForProcessToStop(nullptr, nullptr, false,
>> hijack_listener_sp, nullptr);
>> -
>> +            StateType state =
>> m_process_sp->WaitForProcessToStop(std::chrono::microseconds(0), nullptr,
>> false,
>> +
>>  hijack_listener_sp, nullptr);
>> +
>>              if (state == eStateStopped)
>>              {
>>                  if (!launch_info.GetFlags().Test(eLaunchFlagStopAtEntry))
>> @@ -3114,7 +3115,8 @@ Target::Launch (ProcessLaunchInfo &launc
>>                          error = m_process_sp->PrivateResume();
>>                          if (error.Success())
>>                          {
>> -                            state =
>> m_process_sp->WaitForProcessToStop(nullptr, nullptr, true,
>> hijack_listener_sp, stream);
>> +                            state =
>> m_process_sp->WaitForProcessToStop(std::chrono::microseconds(0), nullptr,
>> true,
>> +
>>  hijack_listener_sp, stream);
>>                              const bool must_be_alive = false; //
>> eStateExited is ok, so this must be false
>>                              if (!StateIsStoppedState(state,
>> must_be_alive))
>>                              {
>> @@ -3243,7 +3245,8 @@ Target::Attach (ProcessAttachInfo &attac
>>          }
>>          else
>>          {
>> -            state = process_sp->WaitForProcessToStop (nullptr, nullptr,
>> false, attach_info.GetHijackListener(), stream);
>> +            state =
>> process_sp->WaitForProcessToStop(std::chrono::microseconds(0), nullptr,
>> false,
>> +
>>  attach_info.GetHijackListener(), stream);
>>              process_sp->RestoreProcessEvents ();
>>
>>              if (state != eStateStopped)
>>
>>
>> _______________________________________________
>> lldb-commits mailing list
>> lldb-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
>>
>
>
>
> --
> -Todd
>



-- 
-Todd
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