X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad9835c97c10c0d7de345e3a7a7c0fc2776eb2cb..c0472c7c9e1e9984f7d48eef7857e631c3adbd0d:/src/unix/threadpsx.cpp diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp index d7237bb471..5d7c3bcd2a 100644 --- a/src/unix/threadpsx.cpp +++ b/src/unix/threadpsx.cpp @@ -26,18 +26,18 @@ #if wxUSE_THREADS +#include "wx/thread.h" + #ifndef WX_PRECOMP #include "wx/dynarray.h" + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/timer.h" + #include "wx/stopwatch.h" + #include "wx/module.h" #endif -#include "wx/thread.h" -#include "wx/module.h" -#include "wx/utils.h" -#include "wx/log.h" -#include "wx/intl.h" -#include "wx/timer.h" -#include "wx/stopwatch.h" - #include #include #include @@ -112,6 +112,9 @@ WX_DEFINE_ARRAY_PTR(wxThread *, wxArrayThread); // be left in memory static wxArrayThread gs_allThreads; +// a mutex to protect gs_allThreads +static wxMutex *gs_mutexAllThreads = NULL; + // the id of the main thread static pthread_t gs_tidMain = (pthread_t)-1; @@ -160,11 +163,16 @@ public: ~wxMutexInternal(); wxMutexError Lock(); + wxMutexError Lock(unsigned long ms); wxMutexError TryLock(); wxMutexError Unlock(); bool IsOk() const { return m_isOk; } +private: + // convert the result of pthread_mutex_[timed]lock() call to wx return code + wxMutexError HandleLockResult(int err); + private: pthread_mutex_t m_mutex; bool m_isOk; @@ -242,7 +250,61 @@ wxMutexInternal::~wxMutexInternal() wxMutexError wxMutexInternal::Lock() { - int err = pthread_mutex_lock(&m_mutex); + return HandleLockResult(pthread_mutex_lock(&m_mutex)); +} + +wxMutexError wxMutexInternal::Lock(unsigned long ms) +{ +#ifdef HAVE_PTHREAD_MUTEX_TIMEDLOCK + static const long MSEC_IN_SEC = 1000; + static const long NSEC_IN_MSEC = 1000000; + static const long NSEC_IN_USEC = 1000; + static const long NSEC_IN_SEC = MSEC_IN_SEC * NSEC_IN_MSEC; + + time_t seconds = ms/MSEC_IN_SEC; + long nanoseconds = (ms % MSEC_IN_SEC) * NSEC_IN_MSEC; + timespec ts = { 0, 0 }; + + // normally we should use clock_gettime(CLOCK_REALTIME) here but this + // function is in librt and we don't link with it currently, so use + // gettimeofday() instead -- if it turns out that this is really too + // imprecise, we should modify configure to check if clock_gettime() is + // available and whether it requires -lrt and use it instead +#if 0 + if ( clock_gettime(CLOCK_REALTIME, &ts) == 0 ) + { + } +#else + struct timeval tv; + if ( wxGetTimeOfDay(&tv) != -1 ) + { + ts.tv_sec = tv.tv_sec; + ts.tv_nsec = tv.tv_usec*NSEC_IN_USEC; + } +#endif + else // fall back on system timer + { + ts.tv_sec = time(NULL); + } + + ts.tv_sec += seconds; + ts.tv_nsec += nanoseconds; + if ( ts.tv_nsec > NSEC_IN_SEC ) + { + ts.tv_sec += 1; + ts.tv_nsec -= NSEC_IN_SEC; + } + + return HandleLockResult(pthread_mutex_timedlock(&m_mutex, &ts)); +#else // !HAVE_PTHREAD_MUTEX_TIMEDLOCK + wxUnusedVar(ms); + + return wxMUTEX_MISC_ERROR; +#endif // HAVE_PTHREAD_MUTEX_TIMEDLOCK/!HAVE_PTHREAD_MUTEX_TIMEDLOCK +} + +wxMutexError wxMutexInternal::HandleLockResult(int err) +{ switch ( err ) { case EDEADLK: @@ -252,19 +314,23 @@ wxMutexError wxMutexInternal::Lock() return wxMUTEX_DEAD_LOCK; case EINVAL: - wxLogDebug(_T("pthread_mutex_lock(): mutex not initialized.")); + wxLogDebug(_T("pthread_mutex_[timed]lock(): mutex not initialized")); break; + case ETIMEDOUT: + return wxMUTEX_TIMEOUT; + case 0: return wxMUTEX_NO_ERROR; default: - wxLogApiError(_T("pthread_mutex_lock()"), err); + wxLogApiError(_T("pthread_mutex_[timed]lock()"), err); } return wxMUTEX_MISC_ERROR; } + wxMutexError wxMutexInternal::TryLock() { int err = pthread_mutex_trylock(&m_mutex); @@ -985,7 +1051,14 @@ void wxThread::Sleep(unsigned long milliseconds) int wxThread::GetCPUCount() { -#if defined(__LINUX__) && wxUSE_FFILE +#if defined(_SC_NPROCESSORS_ONLN) + // this works for Solaris and Linux 2.6 + int rc = sysconf(_SC_NPROCESSORS_ONLN); + if ( rc != -1 ) + { + return rc; + } +#elif defined(__LINUX__) && wxUSE_FFILE // read from proc (can't use wxTextFile here because it's a special file: // it has 0 size but still can be read from) wxLogNull nolog; @@ -1011,13 +1084,6 @@ int wxThread::GetCPUCount() wxLogDebug(_T("failed to read /proc/cpuinfo")); } } -#elif defined(_SC_NPROCESSORS_ONLN) - // this works for Solaris - int rc = sysconf(_SC_NPROCESSORS_ONLN); - if ( rc != -1 ) - { - return rc; - } #endif // different ways to get number of CPUs // unknown @@ -1065,7 +1131,11 @@ bool wxThread::SetConcurrency(size_t level) wxThread::wxThread(wxThreadKind kind) { // add this thread to the global list of all threads - gs_allThreads.Add(this); + { + wxMutexLocker lock(*gs_mutexAllThreads); + + gs_allThreads.Add(this); + } m_internal = new wxThreadInternal(); @@ -1547,7 +1617,11 @@ wxThread::~wxThread() delete m_internal; // remove this thread from the global array - gs_allThreads.Remove(this); + { + wxMutexLocker lock(*gs_mutexAllThreads); + + gs_allThreads.Remove(this); + } } // ----------------------------------------------------------------------------- @@ -1611,11 +1685,13 @@ bool wxThreadModule::OnInit() gs_tidMain = pthread_self(); + gs_mutexAllThreads = new wxMutex(); + gs_mutexGui = new wxMutex(); gs_mutexGui->Lock(); gs_mutexDeleteThread = new wxMutex(); - gs_condAllDeleted = new wxCondition( *gs_mutexDeleteThread ); + gs_condAllDeleted = new wxCondition(*gs_mutexDeleteThread); return true; } @@ -1642,13 +1718,19 @@ void wxThreadModule::OnExit() } } - // terminate any threads left - size_t count = gs_allThreads.GetCount(); - if ( count != 0u ) + size_t count; + { - wxLogDebug(wxT("%lu threads were not terminated by the application."), - (unsigned long)count); - } + wxMutexLocker lock(*gs_mutexAllThreads); + + // terminate any threads left + count = gs_allThreads.GetCount(); + if ( count != 0u ) + { + wxLogDebug(wxT("%lu threads were not terminated by the application."), + (unsigned long)count); + } + } // unlock mutex before deleting the threads as they lock it in their dtor for ( size_t n = 0u; n < count; n++ ) { @@ -1657,6 +1739,8 @@ void wxThreadModule::OnExit() gs_allThreads[0]->Delete(); } + delete gs_mutexAllThreads; + // destroy GUI mutex gs_mutexGui->Unlock(); delete gs_mutexGui; @@ -1680,7 +1764,7 @@ static void ScheduleThreadForDeletion() wxLogTrace(TRACE_THREADS, _T("%lu thread%s waiting to be deleted"), (unsigned long)gs_nThreadsBeingDeleted, - gs_nThreadsBeingDeleted == 1 ? "" : "s"); + gs_nThreadsBeingDeleted == 1 ? _T("") : _T("s")); } static void DeleteThread(wxThread *This)