[Lldb-commits] [lldb] r279997 - Copy StringExtractor to StdStringExtractor.

Zachary Turner via lldb-commits lldb-commits at lists.llvm.org
Tue Aug 30 06:37:36 PDT 2016


Yes, there was a thread on lldb dev about it. After i get all the changes
in to the newer one we can move the old one out
On Tue, Aug 30, 2016 at 6:32 AM Pavel Labath <labath at google.com> wrote:

> I think we should move the new file away from source/Utility. If it's
> supposed to be used by debugserver only, we probably should move it to
> tools/debugserver/source ? Right now, debugservers cmake file contains
> a hack to be able to include these, so by doing that we will remove
> that as well.
>
> Thoughts ?
>
> pl
>
> PS: judging by the CMakeLists.txt, the other file which is included in
> such a funny way is source/Host/common/StringConvert.cpp
>
>
> On 29 August 2016 at 20:46, Zachary Turner via lldb-commits
> <lldb-commits at lists.llvm.org> wrote:
> > Author: zturner
> > Date: Mon Aug 29 14:45:59 2016
> > New Revision: 279997
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=279997&view=rev
> > Log:
> > Copy StringExtractor to StdStringExtractor.
> >
> > I have some improvements to make to StringExtractor that require
> > using LLVM.  debugserver can't take a dependency on LLVM but uses
> > this file, so I'm forking it off into StdStringExtractor and
> > StringExtractor, so that StringExtractor can take advantage of
> > some performance improvements and readability improvements that
> > LLVM can provide.
> >
> > Added:
> >     lldb/trunk/include/lldb/Utility/StdStringExtractor.h
> >     lldb/trunk/source/Utility/StdStringExtractor.cpp
> > Modified:
> >     lldb/trunk/source/Utility/CMakeLists.txt
> >     lldb/trunk/tools/debugserver/source/JSON.cpp
> >     lldb/trunk/tools/debugserver/source/JSON.h
> >     lldb/trunk/tools/debugserver/source/RNBRemote.cpp
> >
> > Added: lldb/trunk/include/lldb/Utility/StdStringExtractor.h
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Utility/StdStringExtractor.h?rev=279997&view=auto
> >
> ==============================================================================
> > --- lldb/trunk/include/lldb/Utility/StdStringExtractor.h (added)
> > +++ lldb/trunk/include/lldb/Utility/StdStringExtractor.h Mon Aug 29
> 14:45:59 2016
> > @@ -0,0 +1,181 @@
> > +//===-- StdStringExtractor.h ------------------------------------*- C++
> -*-===//
> > +//
> > +//                     The LLVM Compiler Infrastructure
> > +//
> > +// This file is distributed under the University of Illinois Open Source
> > +// License. See LICENSE.TXT for details.
> > +//
> >
> +//===----------------------------------------------------------------------===//
> > +
> > +#ifndef utility_StdStringExtractor_h_
> > +#define utility_StdStringExtractor_h_
> > +
> > +// C Includes
> > +// C++ Includes
> > +#include <string>
> > +#include <stdint.h>
> > +
> > +// Other libraries and framework includes
> > +// Project includes
> > +
> > +// Based on StringExtractor, with the added limitation that this file
> should not
> > +// take a dependency on LLVM, as it is used from debugserver.
> > +class StdStringExtractor
> > +{
> > +public:
> > +
> > +    enum {
> > +        BigEndian = 0,
> > +        LittleEndian = 1
> > +    };
> > +    //------------------------------------------------------------------
> > +    // Constructors and Destructors
> > +    //------------------------------------------------------------------
> > +    StdStringExtractor();
> > +    StdStringExtractor(const char *packet_cstr);
> > +    StdStringExtractor(const StdStringExtractor& rhs);
> > +    virtual ~StdStringExtractor();
> > +
> > +    //------------------------------------------------------------------
> > +    // Operators
> > +    //------------------------------------------------------------------
> > +    const StdStringExtractor&
> > +    operator=(const StdStringExtractor& rhs);
> > +
> > +    // Returns true if the file position is still valid for the data
> > +    // contained in this string extractor object.
> > +    bool
> > +    IsGood() const
> > +    {
> > +        return m_index != UINT64_MAX;
> > +    }
> > +
> > +    uint64_t
> > +    GetFilePos () const
> > +    {
> > +        return m_index;
> > +    }
> > +
> > +    void
> > +    SetFilePos (uint32_t idx)
> > +    {
> > +        m_index = idx;
> > +    }
> > +
> > +    void
> > +    Clear ()
> > +    {
> > +        m_packet.clear();
> > +        m_index = 0;
> > +    }
> > +
> > +    void
> > +    SkipSpaces ();
> > +
> > +    std::string &
> > +    GetStringRef ()
> > +    {
> > +        return m_packet;
> > +    }
> > +
> > +    const std::string &
> > +    GetStringRef () const
> > +    {
> > +        return m_packet;
> > +    }
> > +
> > +    bool
> > +    Empty()
> > +    {
> > +        return m_packet.empty();
> > +    }
> > +
> > +    size_t
> > +    GetBytesLeft ()
> > +    {
> > +        if (m_index < m_packet.size())
> > +            return m_packet.size() - m_index;
> > +        return 0;
> > +    }
> > +
> > +    char
> > +    GetChar (char fail_value = '\0');
> > +
> > +    char
> > +    PeekChar (char fail_value = '\0')
> > +    {
> > +        const char *cstr = Peek();
> > +        if (cstr)
> > +            return cstr[0];
> > +        return fail_value;
> > +    }
> > +
> > +    int
> > +    DecodeHexU8();
> > +
> > +    uint8_t
> > +    GetHexU8 (uint8_t fail_value = 0, bool set_eof_on_fail = true);
> > +
> > +    bool
> > +    GetHexU8Ex (uint8_t& ch, bool set_eof_on_fail = true);
> > +
> > +    bool
> > +    GetNameColonValue (std::string &name, std::string &value);
> > +
> > +    int32_t
> > +    GetS32 (int32_t fail_value, int base = 0);
> > +
> > +    uint32_t
> > +    GetU32 (uint32_t fail_value, int base = 0);
> > +
> > +    int64_t
> > +    GetS64 (int64_t fail_value, int base = 0);
> > +
> > +    uint64_t
> > +    GetU64 (uint64_t fail_value, int base = 0);
> > +
> > +    uint32_t
> > +    GetHexMaxU32 (bool little_endian, uint32_t fail_value);
> > +
> > +    uint64_t
> > +    GetHexMaxU64 (bool little_endian, uint64_t fail_value);
> > +
> > +    size_t
> > +    GetHexBytes (void *dst, size_t dst_len, uint8_t fail_fill_value);
> > +
> > +    size_t
> > +    GetHexBytesAvail (void *dst, size_t dst_len);
> > +
> > +    uint64_t
> > +    GetHexWithFixedSize (uint32_t byte_size, bool little_endian,
> uint64_t fail_value);
> > +
> > +    size_t
> > +    GetHexByteString (std::string &str);
> > +
> > +    size_t
> > +    GetHexByteStringFixedLength (std::string &str, uint32_t
> nibble_length);
> > +
> > +    size_t
> > +    GetHexByteStringTerminatedBy (std::string &str,
> > +                                  char terminator);
> > +
> > +    const char *
> > +    Peek ()
> > +    {
> > +        if (m_index < m_packet.size())
> > +            return m_packet.c_str() + m_index;
> > +        return nullptr;
> > +    }
> > +
> > +protected:
> > +    //------------------------------------------------------------------
> > +    // For StdStringExtractor only
> > +    //------------------------------------------------------------------
> > +    std::string m_packet;   // The string in which to extract data.
> > +    uint64_t m_index;       // When extracting data from a packet, this
> index
> > +                            // will march along as things get
> extracted. If set
> > +                            // to UINT64_MAX the end of the packet data
> was
> > +                            // reached when decoding information
> > +};
> > +
> > +#endif  // utility_StringExtractor_h_
> >
> > Modified: lldb/trunk/source/Utility/CMakeLists.txt
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Utility/CMakeLists.txt?rev=279997&r1=279996&r2=279997&view=diff
> >
> ==============================================================================
> > --- lldb/trunk/source/Utility/CMakeLists.txt (original)
> > +++ lldb/trunk/source/Utility/CMakeLists.txt Mon Aug 29 14:45:59 2016
> > @@ -12,6 +12,7 @@ add_lldb_library(lldbUtility
> >    RegisterNumber.cpp
> >    SelectHelper.cpp
> >    SharingPtr.cpp
> > +  StdStringExtractor.cpp
> >    StringExtractor.cpp
> >    StringExtractorGDBRemote.cpp
> >    StringLexer.cpp
> >
> > Added: lldb/trunk/source/Utility/StdStringExtractor.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Utility/StdStringExtractor.cpp?rev=279997&view=auto
> >
> ==============================================================================
> > --- lldb/trunk/source/Utility/StdStringExtractor.cpp (added)
> > +++ lldb/trunk/source/Utility/StdStringExtractor.cpp Mon Aug 29 14:45:59
> 2016
> > @@ -0,0 +1,502 @@
> > +//===-- StdStringExtractor.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/Utility/StdStringExtractor.h"
> > +
> > +// C Includes
> > +#include <stdlib.h>
> > +
> > +// C++ Includes
> > +// Other libraries and framework includes
> > +// Project includes
> > +
> > +static inline int
> > +xdigit_to_sint (char ch)
> > +{
> > +    if (ch >= 'a' && ch <= 'f')
> > +        return 10 + ch - 'a';
> > +    if (ch >= 'A' && ch <= 'F')
> > +        return 10 + ch - 'A';
> > +    if (ch >= '0' && ch <= '9')
> > +        return ch - '0';
> > +    return -1;
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// StdStringExtractor constructor
> > +//----------------------------------------------------------------------
> > +StdStringExtractor::StdStringExtractor() :
> > +    m_packet(),
> > +    m_index (0)
> > +{
> > +}
> > +
> > +
> > +StdStringExtractor::StdStringExtractor(const char *packet_cstr) :
> > +    m_packet(),
> > +    m_index (0)
> > +{
> > +    if (packet_cstr)
> > +        m_packet.assign (packet_cstr);
> > +}
> > +
> > +
> > +//----------------------------------------------------------------------
> > +// StdStringExtractor copy constructor
> > +//----------------------------------------------------------------------
> > +StdStringExtractor::StdStringExtractor(const StdStringExtractor& rhs) :
> > +    m_packet (rhs.m_packet),
> > +    m_index (rhs.m_index)
> > +{
> > +
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// StdStringExtractor assignment operator
> > +//----------------------------------------------------------------------
> > +const StdStringExtractor&
> > +StdStringExtractor::operator=(const StdStringExtractor& rhs)
> > +{
> > +    if (this != &rhs)
> > +    {
> > +        m_packet = rhs.m_packet;
> > +        m_index = rhs.m_index;
> > +
> > +    }
> > +    return *this;
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// Destructor
> > +//----------------------------------------------------------------------
> > +StdStringExtractor::~StdStringExtractor()
> > +{
> > +}
> > +
> > +
> > +char
> > +StdStringExtractor::GetChar (char fail_value)
> > +{
> > +    if (m_index < m_packet.size())
> > +    {
> > +        char ch = m_packet[m_index];
> > +        ++m_index;
> > +        return ch;
> > +    }
> > +    m_index = UINT64_MAX;
> > +    return fail_value;
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// If a pair of valid hex digits exist at the head of the
> > +// StdStringExtractor they are decoded into an unsigned byte and
> returned
> > +// by this function
> > +//
> > +// If there is not a pair of valid hex digits at the head of the
> > +// StdStringExtractor, it is left unchanged and -1 is returned
> > +//----------------------------------------------------------------------
> > +int
> > +StdStringExtractor::DecodeHexU8()
> > +{
> > +    SkipSpaces();
> > +    if (GetBytesLeft() < 2)
> > +    {
> > +        return -1;
> > +    }
> > +    const int hi_nibble = xdigit_to_sint(m_packet[m_index]);
> > +    const int lo_nibble = xdigit_to_sint(m_packet[m_index+1]);
> > +    if (hi_nibble == -1 || lo_nibble == -1)
> > +    {
> > +        return -1;
> > +    }
> > +    m_index += 2;
> > +    return (uint8_t)((hi_nibble << 4) + lo_nibble);
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// Extract an unsigned character from two hex ASCII chars in the packet
> > +// string, or return fail_value on failure
> > +//----------------------------------------------------------------------
> > +uint8_t
> > +StdStringExtractor::GetHexU8 (uint8_t fail_value, bool set_eof_on_fail)
> > +{
> > +    // On success, fail_value will be overwritten with the next
> > +    // character in the stream
> > +    GetHexU8Ex(fail_value, set_eof_on_fail);
> > +    return fail_value;
> > +}
> > +
> > +bool
> > +StdStringExtractor::GetHexU8Ex (uint8_t& ch, bool set_eof_on_fail)
> > +{
> > +    int byte = DecodeHexU8();
> > +    if (byte == -1)
> > +    {
> > +        if (set_eof_on_fail || m_index >= m_packet.size())
> > +            m_index = UINT64_MAX;
> > +        // ch should not be changed in case of failure
> > +        return false;
> > +    }
> > +    ch = (uint8_t)byte;
> > +    return true;
> > +}
> > +
> > +uint32_t
> > +StdStringExtractor::GetU32 (uint32_t fail_value, int base)
> > +{
> > +    if (m_index < m_packet.size())
> > +    {
> > +        char *end = nullptr;
> > +        const char *start = m_packet.c_str();
> > +        const char *cstr = start + m_index;
> > +        uint32_t result = static_cast<uint32_t>(::strtoul (cstr, &end,
> base));
> > +
> > +        if (end && end != cstr)
> > +        {
> > +            m_index = end - start;
> > +            return result;
> > +        }
> > +    }
> > +    return fail_value;
> > +}
> > +
> > +int32_t
> > +StdStringExtractor::GetS32 (int32_t fail_value, int base)
> > +{
> > +    if (m_index < m_packet.size())
> > +    {
> > +        char *end = nullptr;
> > +        const char *start = m_packet.c_str();
> > +        const char *cstr = start + m_index;
> > +        int32_t result = static_cast<int32_t>(::strtol (cstr, &end,
> base));
> > +
> > +        if (end && end != cstr)
> > +        {
> > +            m_index = end - start;
> > +            return result;
> > +        }
> > +    }
> > +    return fail_value;
> > +}
> > +
> > +
> > +uint64_t
> > +StdStringExtractor::GetU64 (uint64_t fail_value, int base)
> > +{
> > +    if (m_index < m_packet.size())
> > +    {
> > +        char *end = nullptr;
> > +        const char *start = m_packet.c_str();
> > +        const char *cstr = start + m_index;
> > +        uint64_t result = ::strtoull (cstr, &end, base);
> > +
> > +        if (end && end != cstr)
> > +        {
> > +            m_index = end - start;
> > +            return result;
> > +        }
> > +    }
> > +    return fail_value;
> > +}
> > +
> > +int64_t
> > +StdStringExtractor::GetS64 (int64_t fail_value, int base)
> > +{
> > +    if (m_index < m_packet.size())
> > +    {
> > +        char *end = nullptr;
> > +        const char *start = m_packet.c_str();
> > +        const char *cstr = start + m_index;
> > +        int64_t result = ::strtoll (cstr, &end, base);
> > +
> > +        if (end && end != cstr)
> > +        {
> > +            m_index = end - start;
> > +            return result;
> > +        }
> > +    }
> > +    return fail_value;
> > +}
> > +
> > +
> > +uint32_t
> > +StdStringExtractor::GetHexMaxU32 (bool little_endian, uint32_t
> fail_value)
> > +{
> > +    uint32_t result = 0;
> > +    uint32_t nibble_count = 0;
> > +
> > +    SkipSpaces();
> > +    if (little_endian)
> > +    {
> > +        uint32_t shift_amount = 0;
> > +        while (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +        {
> > +            // Make sure we don't exceed the size of a uint32_t...
> > +            if (nibble_count >= (sizeof(uint32_t) * 2))
> > +            {
> > +                m_index = UINT64_MAX;
> > +                return fail_value;
> > +            }
> > +
> > +            uint8_t nibble_lo;
> > +            uint8_t nibble_hi = xdigit_to_sint (m_packet[m_index]);
> > +            ++m_index;
> > +            if (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +            {
> > +                nibble_lo = xdigit_to_sint (m_packet[m_index]);
> > +                ++m_index;
> > +                result |= ((uint32_t)nibble_hi << (shift_amount + 4));
> > +                result |= ((uint32_t)nibble_lo << shift_amount);
> > +                nibble_count += 2;
> > +                shift_amount += 8;
> > +            }
> > +            else
> > +            {
> > +                result |= ((uint32_t)nibble_hi << shift_amount);
> > +                nibble_count += 1;
> > +                shift_amount += 4;
> > +            }
> > +
> > +        }
> > +    }
> > +    else
> > +    {
> > +        while (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +        {
> > +            // Make sure we don't exceed the size of a uint32_t...
> > +            if (nibble_count >= (sizeof(uint32_t) * 2))
> > +            {
> > +                m_index = UINT64_MAX;
> > +                return fail_value;
> > +            }
> > +
> > +            uint8_t nibble = xdigit_to_sint (m_packet[m_index]);
> > +            // Big Endian
> > +            result <<= 4;
> > +            result |= nibble;
> > +
> > +            ++m_index;
> > +            ++nibble_count;
> > +        }
> > +    }
> > +    return result;
> > +}
> > +
> > +uint64_t
> > +StdStringExtractor::GetHexMaxU64 (bool little_endian, uint64_t
> fail_value)
> > +{
> > +    uint64_t result = 0;
> > +    uint32_t nibble_count = 0;
> > +
> > +    SkipSpaces();
> > +    if (little_endian)
> > +    {
> > +        uint32_t shift_amount = 0;
> > +        while (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +        {
> > +            // Make sure we don't exceed the size of a uint64_t...
> > +            if (nibble_count >= (sizeof(uint64_t) * 2))
> > +            {
> > +                m_index = UINT64_MAX;
> > +                return fail_value;
> > +            }
> > +
> > +            uint8_t nibble_lo;
> > +            uint8_t nibble_hi = xdigit_to_sint (m_packet[m_index]);
> > +            ++m_index;
> > +            if (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +            {
> > +                nibble_lo = xdigit_to_sint (m_packet[m_index]);
> > +                ++m_index;
> > +                result |= ((uint64_t)nibble_hi << (shift_amount + 4));
> > +                result |= ((uint64_t)nibble_lo << shift_amount);
> > +                nibble_count += 2;
> > +                shift_amount += 8;
> > +            }
> > +            else
> > +            {
> > +                result |= ((uint64_t)nibble_hi << shift_amount);
> > +                nibble_count += 1;
> > +                shift_amount += 4;
> > +            }
> > +
> > +        }
> > +    }
> > +    else
> > +    {
> > +        while (m_index < m_packet.size() && ::isxdigit
> (m_packet[m_index]))
> > +        {
> > +            // Make sure we don't exceed the size of a uint64_t...
> > +            if (nibble_count >= (sizeof(uint64_t) * 2))
> > +            {
> > +                m_index = UINT64_MAX;
> > +                return fail_value;
> > +            }
> > +
> > +            uint8_t nibble = xdigit_to_sint (m_packet[m_index]);
> > +            // Big Endian
> > +            result <<= 4;
> > +            result |= nibble;
> > +
> > +            ++m_index;
> > +            ++nibble_count;
> > +        }
> > +    }
> > +    return result;
> > +}
> > +
> > +size_t
> > +StdStringExtractor::GetHexBytes (void *dst_void, size_t dst_len,
> uint8_t fail_fill_value)
> > +{
> > +    uint8_t *dst = (uint8_t*)dst_void;
> > +    size_t bytes_extracted = 0;
> > +    while (bytes_extracted < dst_len && GetBytesLeft ())
> > +    {
> > +        dst[bytes_extracted] = GetHexU8 (fail_fill_value);
> > +        if (IsGood())
> > +            ++bytes_extracted;
> > +        else
> > +            break;
> > +    }
> > +
> > +    for (size_t i = bytes_extracted; i < dst_len; ++i)
> > +        dst[i] = fail_fill_value;
> > +
> > +    return bytes_extracted;
> > +}
> > +
> > +//----------------------------------------------------------------------
> > +// Decodes all valid hex encoded bytes at the head of the
> > +// StdStringExtractor, limited by dst_len.
> > +//
> > +// Returns the number of bytes successfully decoded
> > +//----------------------------------------------------------------------
> > +size_t
> > +StdStringExtractor::GetHexBytesAvail (void *dst_void, size_t dst_len)
> > +{
> > +    uint8_t *dst = (uint8_t*)dst_void;
> > +    size_t bytes_extracted = 0;
> > +    while (bytes_extracted < dst_len)
> > +    {
> > +        int decode = DecodeHexU8();
> > +        if (decode == -1)
> > +        {
> > +            break;
> > +        }
> > +        dst[bytes_extracted++] = (uint8_t)decode;
> > +    }
> > +    return bytes_extracted;
> > +}
> > +
> > +// Consume ASCII hex nibble character pairs until we have decoded
> byte_size
> > +// bytes of data.
> > +
> > +uint64_t
> > +StdStringExtractor::GetHexWithFixedSize (uint32_t byte_size, bool
> little_endian, uint64_t fail_value)
> > +{
> > +    if (byte_size <= 8 && GetBytesLeft() >= byte_size * 2)
> > +    {
> > +        uint64_t result = 0;
> > +        uint32_t i;
> > +        if (little_endian)
> > +        {
> > +            // Little Endian
> > +            uint32_t shift_amount;
> > +            for (i = 0, shift_amount = 0;
> > +                 i < byte_size && IsGood();
> > +                 ++i, shift_amount += 8)
> > +            {
> > +                result |= ((uint64_t)GetHexU8() << shift_amount);
> > +            }
> > +        }
> > +        else
> > +        {
> > +            // Big Endian
> > +            for (i = 0; i < byte_size && IsGood(); ++i)
> > +            {
> > +                result <<= 8;
> > +                result |= GetHexU8();
> > +            }
> > +        }
> > +    }
> > +    m_index = UINT64_MAX;
> > +    return fail_value;
> > +}
> > +
> > +size_t
> > +StdStringExtractor::GetHexByteString (std::string &str)
> > +{
> > +    str.clear();
> > +    str.reserve(GetBytesLeft() / 2);
> > +    char ch;
> > +    while ((ch = GetHexU8()) != '\0')
> > +        str.append(1, ch);
> > +    return str.size();
> > +}
> > +
> > +size_t
> > +StdStringExtractor::GetHexByteStringFixedLength (std::string &str,
> uint32_t nibble_length)
> > +{
> > +    str.clear();
> > +
> > +    uint32_t nibble_count = 0;
> > +    for (const char *pch = Peek(); (nibble_count < nibble_length) &&
> (pch != nullptr); str.append(1, GetHexU8(0, false)), pch = Peek (),
> nibble_count += 2)
> > +    {}
> > +
> > +    return str.size();
> > +}
> > +
> > +size_t
> > +StdStringExtractor::GetHexByteStringTerminatedBy (std::string &str,
> > +                                               char terminator)
> > +{
> > +    str.clear();
> > +    char ch;
> > +    while ((ch = GetHexU8(0,false)) != '\0')
> > +        str.append(1, ch);
> > +    if (Peek() && *Peek() == terminator)
> > +        return str.size();
> > +
> > +    str.clear();
> > +    return str.size();
> > +}
> > +
> > +bool
> > +StdStringExtractor::GetNameColonValue (std::string &name, std::string
> &value)
> > +{
> > +    // Read something in the form of NNNN:VVVV; where NNNN is any
> character
> > +    // that is not a colon, followed by a ':' character, then a value
> (one or
> > +    // more ';' chars), followed by a ';'
> > +    if (m_index < m_packet.size())
> > +    {
> > +        const size_t colon_idx = m_packet.find (':', m_index);
> > +        if (colon_idx != std::string::npos)
> > +        {
> > +            const size_t semicolon_idx = m_packet.find (';', colon_idx);
> > +            if (semicolon_idx != std::string::npos)
> > +            {
> > +                name.assign (m_packet, m_index, colon_idx - m_index);
> > +                value.assign (m_packet, colon_idx + 1, semicolon_idx -
> (colon_idx + 1));
> > +                m_index = semicolon_idx + 1;
> > +                return true;
> > +            }
> > +        }
> > +    }
> > +    m_index = UINT64_MAX;
> > +    return false;
> > +}
> > +
> > +void
> > +StdStringExtractor::SkipSpaces ()
> > +{
> > +    const size_t n = m_packet.size();
> > +    while (m_index < n && isspace(m_packet[m_index]))
> > +        ++m_index;
> > +}
> > +
> >
> > Modified: lldb/trunk/tools/debugserver/source/JSON.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/tools/debugserver/source/JSON.cpp?rev=279997&r1=279996&r2=279997&view=diff
> >
> ==============================================================================
> > --- lldb/trunk/tools/debugserver/source/JSON.cpp (original)
> > +++ lldb/trunk/tools/debugserver/source/JSON.cpp Mon Aug 29 14:45:59 2016
> > @@ -319,7 +319,7 @@ JSONArray::GetNumElements ()
> >
> >
> >  JSONParser::JSONParser (const char *cstr) :
> > -    StringExtractor(cstr)
> > +    StdStringExtractor(cstr)
> >  {
> >  }
> >
> >
> > Modified: lldb/trunk/tools/debugserver/source/JSON.h
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/tools/debugserver/source/JSON.h?rev=279997&r1=279996&r2=279997&view=diff
> >
> ==============================================================================
> > --- lldb/trunk/tools/debugserver/source/JSON.h (original)
> > +++ lldb/trunk/tools/debugserver/source/JSON.h Mon Aug 29 14:45:59 2016
> > @@ -10,9 +10,9 @@
> >  #ifndef utility_JSON_h_
> >  #define utility_JSON_h_
> >
> > -// This cross-project usage is fine as StringExtractor.h is entirely
> > +// This cross-project usage is fine as StdStringExtractor.h is entirely
> >  // self-contained.
> > -#include "lldb/Utility/StringExtractor.h"
> > +#include "lldb/Utility/StdStringExtractor.h"
> >
> >  // C includes
> >  #include <inttypes.h>
> > @@ -338,7 +338,7 @@ public:
> >      Vector m_elements;
> >  };
> >
> > -class JSONParser : public StringExtractor
> > +class JSONParser : public StdStringExtractor
> >  {
> >  public:
> >      enum Token
> >
> > Modified: lldb/trunk/tools/debugserver/source/RNBRemote.cpp
> > URL:
> http://llvm.org/viewvc/llvm-project/lldb/trunk/tools/debugserver/source/RNBRemote.cpp?rev=279997&r1=279996&r2=279997&view=diff
> >
> ==============================================================================
> > --- lldb/trunk/tools/debugserver/source/RNBRemote.cpp (original)
> > +++ lldb/trunk/tools/debugserver/source/RNBRemote.cpp Mon Aug 29
> 14:45:59 2016
> > @@ -38,7 +38,7 @@
> >  #include "RNBServices.h"
> >  #include "RNBSocket.h"
> >  #include "JSON.h"
> > -#include "lldb/Utility/StringExtractor.h"
> > +#include "lldb/Utility/StdStringExtractor.h"
> >  #include "MacOSX/Genealogy.h"
> >  #include "JSONGenerator.h"
> >
> > @@ -2329,7 +2329,7 @@ RNBRemote::HandlePacket_QSetSTDIO (const
> >          // QSetSTDIN
> >          // QSetSTDOUT
> >          // QSetSTDERR
> > -        StringExtractor packet(p);
> > +        StdStringExtractor packet(p);
> >          packet.SetFilePos (7);
> >          char ch = packet.GetChar();
> >          while (packet.GetChar() != ':')
> > @@ -2368,7 +2368,7 @@ RNBRemote::HandlePacket_QSetWorkingDir (
> >      // Only set the working directory if we don't already have a process
> >      if (!m_ctx.HasValidProcessID())
> >      {
> > -        StringExtractor packet(p += sizeof ("QSetWorkingDir:") - 1);
> > +        StdStringExtractor packet(p += sizeof ("QSetWorkingDir:") - 1);
> >          if (packet.GetHexByteString (m_ctx.GetWorkingDir()))
> >          {
> >              struct stat working_dir_stat;
> > @@ -3473,7 +3473,7 @@ RNBRemote::HandlePacket_G (const char *p
> >      if (g_num_reg_entries == 0)
> >          InitializeRegisters ();
> >
> > -    StringExtractor packet(p);
> > +    StdStringExtractor packet(p);
> >      packet.SetFilePos(1); // Skip the 'G'
> >
> >      nub_process_t pid = m_ctx.ProcessID();
> > @@ -3540,10 +3540,10 @@ RNBRemoteShouldCancelCallback (void *not
> >  rnb_err_t
> >  RNBRemote::HandlePacket_AllocateMemory (const char *p)
> >  {
> > -    StringExtractor packet (p);
> > +    StdStringExtractor packet (p);
> >      packet.SetFilePos(2); // Skip the "_M"
> >
> > -    nub_addr_t size = packet.GetHexMaxU64 (StringExtractor::BigEndian,
> 0);
> > +    nub_addr_t size = packet.GetHexMaxU64
> (StdStringExtractor::BigEndian, 0);
> >      if (size != 0)
> >      {
> >          if (packet.GetChar() == ',')
> > @@ -3590,9 +3590,9 @@ RNBRemote::HandlePacket_AllocateMemory (
> >  rnb_err_t
> >  RNBRemote::HandlePacket_DeallocateMemory (const char *p)
> >  {
> > -    StringExtractor packet (p);
> > +    StdStringExtractor packet (p);
> >      packet.SetFilePos(2); // Skip the "_m"
> > -    nub_addr_t addr = packet.GetHexMaxU64 (StringExtractor::BigEndian,
> INVALID_NUB_ADDRESS);
> > +    nub_addr_t addr = packet.GetHexMaxU64
> (StdStringExtractor::BigEndian, INVALID_NUB_ADDRESS);
> >
> >      if (addr != INVALID_NUB_ADDRESS)
> >      {
> > @@ -3669,7 +3669,7 @@ RNBRemote::HandlePacket_RestoreRegisterS
> >              return HandlePacket_ILLFORMED (__FILE__, __LINE__, p, "No
> thread was is set with the Hg packet");
> >      }
> >
> > -    StringExtractor packet (p);
> > +    StdStringExtractor packet (p);
> >      packet.SetFilePos(strlen("QRestoreRegisterState:")); // Skip the
> "QRestoreRegisterState:"
> >      const uint32_t save_id = packet.GetU32(0);
> >
> > @@ -4222,7 +4222,7 @@ RNBRemote::HandlePacket_P (const char *p
> >
> >      nub_process_t pid = m_ctx.ProcessID();
> >
> > -    StringExtractor packet (p);
> > +    StdStringExtractor packet (p);
> >
> >      const char cmd_char = packet.GetChar();
> >      // Register ID is always in big endian
> > @@ -4372,7 +4372,7 @@ RNBRemote::HandlePacket_GetProfileData (
> >      if (pid == INVALID_NUB_PROCESS)
> >          return SendPacket ("OK");
> >
> > -    StringExtractor packet(p += sizeof ("qGetProfileData"));
> > +    StdStringExtractor packet(p += sizeof ("qGetProfileData"));
> >      DNBProfileDataScanType scan_type = eProfileAll;
> >      std::string name;
> >      std::string value;
> > @@ -4408,7 +4408,7 @@ RNBRemote::HandlePacket_SetEnableAsyncPr
> >      if (pid == INVALID_NUB_PROCESS)
> >          return SendPacket ("OK");
> >
> > -    StringExtractor packet(p += sizeof ("QSetEnableAsyncProfiling"));
> > +    StdStringExtractor packet(p += sizeof ("QSetEnableAsyncProfiling"));
> >      bool enable = false;
> >      uint64_t interval_usec = 0;
> >      DNBProfileDataScanType scan_type = eProfileAll;
> >
> >
> > _______________________________________________
> > lldb-commits mailing list
> > lldb-commits at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
>
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