[llvm] 8fe3d9d - Revert "[ORC] Move SimpleRemoteEPCServer::Dispatcher into OrcShared."

Lang Hames via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 8 13:43:50 PDT 2021


Author: Lang Hames
Date: 2021-10-08T13:43:42-07:00
New Revision: 8fe3d9df0ed384037cb3789096e0dcabd6d27138

URL: https://github.com/llvm/llvm-project/commit/8fe3d9df0ed384037cb3789096e0dcabd6d27138
DIFF: https://github.com/llvm/llvm-project/commit/8fe3d9df0ed384037cb3789096e0dcabd6d27138.diff

LOG: Revert "[ORC] Move SimpleRemoteEPCServer::Dispatcher into OrcShared."

This reverts commit dfd74db9813b0c7c64038c303726ba43f335e07a.

SimpleRemoteEPC should share dispatch with the ExecutionSession, rather than
having two different dispatch systems on the controller side.
SimpleRemoteEPCServer::Dispatch doesn't need to be shared.

Added: 
    

Modified: 
    llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
    llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h
    llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp
    llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.cpp
    llvm/tools/lli/ChildTarget/ChildTarget.cpp
    llvm/tools/llvm-jitlink/llvm-jitlink-executor/llvm-jitlink-executor.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h b/llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
index 5cd178cdeb867..44c56479c7c34 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h
@@ -15,7 +15,6 @@
 #define LLVM_EXECUTIONENGINE_ORC_SHARED_SIMPLEREMOTEEPCUTILS_H
 
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/FunctionExtras.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
@@ -140,29 +139,6 @@ class FDSimpleRemoteEPCTransport : public SimpleRemoteEPCTransport {
   std::atomic<bool> Disconnected{false};
 };
 
-/// Dispatches calls to runWrapper.
-class SimpleRemoteEPCDispatcher {
-public:
-  virtual ~SimpleRemoteEPCDispatcher();
-  virtual void dispatch(unique_function<void()> Work) = 0;
-  virtual void shutdown() = 0;
-};
-
-#if LLVM_ENABLE_THREADS
-class DynamicThreadPoolSimpleRemoteEPCDispatcher
-    : public SimpleRemoteEPCDispatcher {
-public:
-  void dispatch(unique_function<void()> Work) override;
-  void shutdown() override;
-
-private:
-  std::mutex DispatchMutex;
-  bool Running = true;
-  size_t Outstanding = 0;
-  std::condition_variable OutstandingCV;
-};
-#endif
-
 struct RemoteSymbolLookupSetElement {
   std::string Name;
   bool Required;

diff  --git a/llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h b/llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h
index dd721203410b4..38c413db2e947 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h
@@ -37,6 +37,28 @@ class SimpleRemoteEPCServer : public SimpleRemoteEPCTransportClient {
 public:
   using ReportErrorFunction = unique_function<void(Error)>;
 
+  /// Dispatches calls to runWrapper.
+  class Dispatcher {
+  public:
+    virtual ~Dispatcher();
+    virtual void dispatch(unique_function<void()> Work) = 0;
+    virtual void shutdown() = 0;
+  };
+
+#if LLVM_ENABLE_THREADS
+  class ThreadDispatcher : public Dispatcher {
+  public:
+    void dispatch(unique_function<void()> Work) override;
+    void shutdown() override;
+
+  private:
+    std::mutex DispatchMutex;
+    bool Running = true;
+    size_t Outstanding = 0;
+    std::condition_variable OutstandingCV;
+  };
+#endif
+
   class Setup {
     friend class SimpleRemoteEPCServer;
 
@@ -46,9 +68,7 @@ class SimpleRemoteEPCServer : public SimpleRemoteEPCTransportClient {
     std::vector<std::unique_ptr<ExecutorBootstrapService>> &services() {
       return Services;
     }
-    void setDispatcher(std::unique_ptr<SimpleRemoteEPCDispatcher> D) {
-      S.D = std::move(D);
-    }
+    void setDispatcher(std::unique_ptr<Dispatcher> D) { S.D = std::move(D); }
     void setErrorReporter(unique_function<void(Error)> ReportError) {
       S.ReportError = std::move(ReportError);
     }
@@ -146,7 +166,7 @@ class SimpleRemoteEPCServer : public SimpleRemoteEPCTransportClient {
   enum { ServerRunning, ServerShuttingDown, ServerShutDown } RunState;
   Error ShutdownErr = Error::success();
   std::unique_ptr<SimpleRemoteEPCTransport> T;
-  std::unique_ptr<SimpleRemoteEPCDispatcher> D;
+  std::unique_ptr<Dispatcher> D;
   std::vector<std::unique_ptr<ExecutorBootstrapService>> Services;
   ReportErrorFunction ReportError;
 

diff  --git a/llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp b/llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp
index 37d57c0d2d1bf..62f4ff8a34090 100644
--- a/llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.cpp
@@ -241,32 +241,5 @@ void FDSimpleRemoteEPCTransport::listenLoop() {
   C.handleDisconnect(std::move(Err));
 }
 
-SimpleRemoteEPCDispatcher::~SimpleRemoteEPCDispatcher() {}
-
-#if LLVM_ENABLE_THREADS
-void DynamicThreadPoolSimpleRemoteEPCDispatcher::dispatch(
-    unique_function<void()> Work) {
-  {
-    std::lock_guard<std::mutex> Lock(DispatchMutex);
-    if (!Running)
-      return;
-    ++Outstanding;
-  }
-
-  std::thread([this, Work = std::move(Work)]() mutable {
-    Work();
-    std::lock_guard<std::mutex> Lock(DispatchMutex);
-    --Outstanding;
-    OutstandingCV.notify_all();
-  }).detach();
-}
-
-void DynamicThreadPoolSimpleRemoteEPCDispatcher::shutdown() {
-  std::unique_lock<std::mutex> Lock(DispatchMutex);
-  Running = false;
-  OutstandingCV.wait(Lock, [this]() { return Outstanding == 0; });
-}
-#endif
-
 } // end namespace orc
 } // end namespace llvm

diff  --git a/llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.cpp b/llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.cpp
index f548ce25093af..558209928a292 100644
--- a/llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.cpp
@@ -24,6 +24,33 @@ namespace orc {
 
 ExecutorBootstrapService::~ExecutorBootstrapService() {}
 
+SimpleRemoteEPCServer::Dispatcher::~Dispatcher() {}
+
+#if LLVM_ENABLE_THREADS
+void SimpleRemoteEPCServer::ThreadDispatcher::dispatch(
+    unique_function<void()> Work) {
+  {
+    std::lock_guard<std::mutex> Lock(DispatchMutex);
+    if (!Running)
+      return;
+    ++Outstanding;
+  }
+
+  std::thread([this, Work = std::move(Work)]() mutable {
+    Work();
+    std::lock_guard<std::mutex> Lock(DispatchMutex);
+    --Outstanding;
+    OutstandingCV.notify_all();
+  }).detach();
+}
+
+void SimpleRemoteEPCServer::ThreadDispatcher::shutdown() {
+  std::unique_lock<std::mutex> Lock(DispatchMutex);
+  Running = false;
+  OutstandingCV.wait(Lock, [this]() { return Outstanding == 0; });
+}
+#endif
+
 StringMap<ExecutorAddr> SimpleRemoteEPCServer::defaultBootstrapSymbols() {
   StringMap<ExecutorAddr> DBS;
   rt_bootstrap::addTo(DBS);

diff  --git a/llvm/tools/lli/ChildTarget/ChildTarget.cpp b/llvm/tools/lli/ChildTarget/ChildTarget.cpp
index a9e330984ef90..cf1b03a141c5e 100644
--- a/llvm/tools/lli/ChildTarget/ChildTarget.cpp
+++ b/llvm/tools/lli/ChildTarget/ChildTarget.cpp
@@ -54,7 +54,7 @@ int main(int argc, char *argv[]) {
       ExitOnErr(SimpleRemoteEPCServer::Create<FDSimpleRemoteEPCTransport>(
           [](SimpleRemoteEPCServer::Setup &S) -> Error {
             S.setDispatcher(
-                std::make_unique<DynamicThreadPoolSimpleRemoteEPCDispatcher>());
+                std::make_unique<SimpleRemoteEPCServer::ThreadDispatcher>());
             S.bootstrapSymbols() =
                 SimpleRemoteEPCServer::defaultBootstrapSymbols();
             S.services().push_back(

diff  --git a/llvm/tools/llvm-jitlink/llvm-jitlink-executor/llvm-jitlink-executor.cpp b/llvm/tools/llvm-jitlink/llvm-jitlink-executor/llvm-jitlink-executor.cpp
index b1ba6a9e6bac3..7100c274b988b 100644
--- a/llvm/tools/llvm-jitlink/llvm-jitlink-executor/llvm-jitlink-executor.cpp
+++ b/llvm/tools/llvm-jitlink/llvm-jitlink-executor/llvm-jitlink-executor.cpp
@@ -158,7 +158,7 @@ int main(int argc, char *argv[]) {
       ExitOnErr(SimpleRemoteEPCServer::Create<FDSimpleRemoteEPCTransport>(
           [](SimpleRemoteEPCServer::Setup &S) -> Error {
             S.setDispatcher(
-                std::make_unique<DynamicThreadPoolSimpleRemoteEPCDispatcher>());
+                std::make_unique<SimpleRemoteEPCServer::ThreadDispatcher>());
             S.bootstrapSymbols() =
                 SimpleRemoteEPCServer::defaultBootstrapSymbols();
             S.services().push_back(


        


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