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author | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:19:41 +0100 |
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committer | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:19:41 +0100 |
commit | 675b4aa878f16291ce33fced48a2bc7425f635ae (patch) | |
tree | 409914df27a98f65adf866da669429c4de141b6f /src/OSSupport/Thread.cpp | |
parent | LineBlockTracer: Using the coord-based block faces. (diff) | |
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Diffstat (limited to 'src/OSSupport/Thread.cpp')
-rw-r--r-- | src/OSSupport/Thread.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/OSSupport/Thread.cpp b/src/OSSupport/Thread.cpp new file mode 100644 index 000000000..3df75f0e7 --- /dev/null +++ b/src/OSSupport/Thread.cpp @@ -0,0 +1,128 @@ + +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + + + + + +// When in MSVC, the debugger provides "thread naming" by catching special exceptions. Interface here: +#ifdef _MSC_VER +// +// Usage: SetThreadName (-1, "MainThread"); +// +typedef struct tagTHREADNAME_INFO +{ + DWORD dwType; // must be 0x1000 + LPCSTR szName; // pointer to name (in user addr space) + DWORD dwThreadID; // thread ID (-1=caller thread) + DWORD dwFlags; // reserved for future use, must be zero +} THREADNAME_INFO; + +void SetThreadName( DWORD dwThreadID, LPCSTR szThreadName) +{ + THREADNAME_INFO info; + info.dwType = 0x1000; + info.szName = szThreadName; + info.dwThreadID = dwThreadID; + info.dwFlags = 0; + + __try + { + RaiseException( 0x406D1388, 0, sizeof(info)/sizeof(DWORD), (DWORD*)&info ); + } + __except(EXCEPTION_CONTINUE_EXECUTION) + { + } +} +#endif // _MSC_VER + + + + + +cThread::cThread( ThreadFunc a_ThreadFunction, void* a_Param, const char* a_ThreadName /* = 0 */ ) + : m_ThreadFunction( a_ThreadFunction ) + , m_Param( a_Param ) + , m_Event( new cEvent() ) + , m_StopEvent( 0 ) +{ + if( a_ThreadName ) + { + m_ThreadName.assign(a_ThreadName); + } +} + + + + + +cThread::~cThread() +{ + delete m_Event; + + if( m_StopEvent ) + { + m_StopEvent->Wait(); + delete m_StopEvent; + } +} + + + + + +void cThread::Start( bool a_bWaitOnDelete /* = true */ ) +{ + if( a_bWaitOnDelete ) + m_StopEvent = new cEvent(); + +#ifndef _WIN32 + pthread_t SndThread; + if( pthread_create( &SndThread, NULL, MyThread, this) ) + LOGERROR("ERROR: Could not create thread!"); +#else + DWORD ThreadID = 0; + HANDLE hThread = CreateThread( 0 // security + ,0 // stack size + , (LPTHREAD_START_ROUTINE) MyThread // function name + ,this // parameters + ,0 // flags + ,&ThreadID ); // thread id + CloseHandle( hThread ); + + #ifdef _MSC_VER + if (!m_ThreadName.empty()) + { + SetThreadName(ThreadID, m_ThreadName.c_str()); + } + #endif // _MSC_VER +#endif + + // Wait until thread has actually been created + m_Event->Wait(); +} + + + + + +#ifdef _WIN32 +unsigned long cThread::MyThread(void* a_Param ) +#else +void *cThread::MyThread( void *a_Param ) +#endif +{ + cThread* self = (cThread*)a_Param; + cEvent* StopEvent = self->m_StopEvent; + + ThreadFunc* ThreadFunction = self->m_ThreadFunction; + void* ThreadParam = self->m_Param; + + // Set event to let other thread know this thread has been created and it's safe to delete the cThread object + self->m_Event->Set(); + + ThreadFunction( ThreadParam ); + + if( StopEvent ) StopEvent->Set(); + return 0; +} |