Initial commit

Torque/SDK/engine/platformWin32/winThread.cc

@@ -0,0 +1,101 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "platform/platformThread.h"
+#include "platformWin32/platformWin32.h"
+#include "platform/platformSemaphore.h"
+
+//--------------------------------------------------------------------------
+struct WinThreadData
+{
+   ThreadRunFunction       mRunFunc;
+   S32                     mRunArg;
+   Thread *                mThread;
+   void *                  mSemaphore;
+
+   WinThreadData()
+   {
+      mRunFunc    = 0;
+      mRunArg     = 0;
+      mThread     = 0;
+      mSemaphore  = 0;
+   };
+};
+
+//--------------------------------------------------------------------------
+Thread::Thread(ThreadRunFunction func, S32 arg, bool start_thread)
+{
+   WinThreadData * threadData = new WinThreadData();
+   threadData->mRunFunc = func;
+   threadData->mRunArg = arg;
+   threadData->mThread = this;
+   threadData->mSemaphore = Semaphore::createSemaphore();
+
+   mData = reinterpret_cast<void*>(threadData);
+   if (start_thread)
+      start();
+}
+
+Thread::~Thread()
+{
+   join();
+
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(mData);
+   Semaphore::destroySemaphore(threadData->mSemaphore);
+   delete threadData;
+}
+
+static DWORD WINAPI ThreadRunHandler(void * arg)
+{
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(arg);
+
+   threadData->mThread->run(threadData->mRunArg);
+   Semaphore::releaseSemaphore(threadData->mSemaphore);
+
+   return(0);
+}
+
+void Thread::start()
+{
+   if(isAlive())
+      return;
+
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(mData);
+   Semaphore::acquireSemaphore(threadData->mSemaphore);
+
+   DWORD threadID;
+   CreateThread(0, 0, ThreadRunHandler, mData, 0, &threadID);
+}
+
+bool Thread::join()
+{
+   if(!isAlive())
+      return(false);
+
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(mData);
+   return(Semaphore::acquireSemaphore(threadData->mSemaphore));
+}
+
+void Thread::run(S32 arg)
+{
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(mData);
+   if(threadData->mRunFunc)
+      threadData->mRunFunc(arg);
+}
+
+bool Thread::isAlive()
+{
+   WinThreadData * threadData = reinterpret_cast<WinThreadData*>(mData);
+
+   bool signal = Semaphore::acquireSemaphore(threadData->mSemaphore, false);
+   if(signal)
+      Semaphore::releaseSemaphore(threadData->mSemaphore);
+   return(!signal);
+}
+
+U32 Thread::getCurrentThreadId()
+{
+   return GetCurrentThreadId();
+}