don't complain if file doesn't exist in DeleteFile(); do return false if it exists...

[wxWidgets.git] / src / unix / threadpsx.cpp

diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp
index 89bc5109f77cd4ec76c5f7b5d22bed64f35fbbb7..2c68b71db9be562d3ea8d4fd54cc87798403d736 100644 (file)
--- a/src/unix/threadpsx.cpp
+++ b/src/unix/threadpsx.cpp
@@ -21,11 +21,12 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "thread.h"
 #endif
 
-#include "wx/defs.h"
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
 #if wxUSE_THREADS
 
@@ -58,6 +59,12 @@
     #include <sys/resource.h>
 #endif
 
+#ifdef __VMS
+    #define THR_ID(thr) ((long long)(thr)->GetId())
+#else
+    #define THR_ID(thr) ((long)(thr)->GetId())
+#endif
+
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -122,10 +129,10 @@ static wxMutex *gs_mutexDeleteThread = (wxMutex *)NULL;
 // gs_nThreadsBeingDeleted will have been deleted
 static wxCondition *gs_condAllDeleted = (wxCondition *)NULL;
 
-#if wxUSE_GUI
-    // this mutex must be acquired before any call to a GUI function
-    static wxMutex *gs_mutexGui;
-#endif // wxUSE_GUI
+// this mutex must be acquired before any call to a GUI function
+// (it's not inside #if wxUSE_GUI because this file is compiled as part
+// of wxBase)
+static wxMutex *gs_mutexGui = NULL;
 
 // when we wait for a thread to exit, we're blocking on a condition which the
 // thread signals in its SignalExit() method -- but this condition can't be a
@@ -166,6 +173,12 @@ private:
     friend class wxConditionInternal;
 };
 
+#ifdef HAVE_PTHREAD_MUTEXATTR_T
+// on some systems pthread_mutexattr_settype() is not in the headers (but it is
+// in the library, otherwise we wouldn't compile this code at all)
+extern "C" int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
+#endif
+
 wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
 {
     int err;
@@ -532,8 +545,17 @@ wxSemaError wxSemaphoreInternal::WaitTimeout(unsigned long milliseconds)
             return wxSEMA_TIMEOUT;
         }
 
-        if ( m_cond.WaitTimeout(remainingTime) != wxCOND_NO_ERROR )
-            return wxSEMA_MISC_ERROR;
+        switch ( m_cond.WaitTimeout(remainingTime) )
+        {
+            case wxCOND_TIMEOUT:
+                return wxSEMA_TIMEOUT;
+
+            default:
+                return wxSEMA_MISC_ERROR;
+
+            case wxCOND_NO_ERROR:
+                ;
+        }
     }
 
     m_count--;
@@ -696,12 +718,8 @@ void *wxThreadInternal::PthreadStart(wxThread *thread)
 {
     wxThreadInternal *pthread = thread->m_internal;
 
-#ifdef __VMS
-   wxLogTrace(TRACE_THREADS, _T("Thread %ld started."), (long long)pthread->GetId());
-#else
-   wxLogTrace(TRACE_THREADS, _T("Thread %ld started."), (long)pthread->GetId());
-#endif
-   
+    wxLogTrace(TRACE_THREADS, _T("Thread %ld started."), THR_ID(pthread));
+
     // associate the thread pointer with the newly created thread so that
     // wxThread::This() will work
     int rc = pthread_setspecific(gs_keySelf, thread);
@@ -737,22 +755,16 @@ void *wxThreadInternal::PthreadStart(wxThread *thread)
     if ( !dontRunAtAll )
     {
         // call the main entry
-        wxLogTrace(TRACE_THREADS, _T("Thread %ld about to enter its Entry()."),
-#ifdef __VMS
-                   (long long)pthread->GetId());
-#else
-                   (long)pthread->GetId());
-#endif
-       
+        wxLogTrace(TRACE_THREADS,
+                   _T("Thread %ld about to enter its Entry()."),
+                   THR_ID(pthread));
+
         pthread->m_exitcode = thread->Entry();
 
-        wxLogTrace(TRACE_THREADS, _T("Thread %ld Entry() returned %lu."),
-#ifdef __VMS
-                   (long long)pthread->GetId(), (unsigned long)pthread->m_exitcode);
-#else
-                   (long)pthread->GetId(), (unsigned long)pthread->m_exitcode);
-#endif
-       
+        wxLogTrace(TRACE_THREADS,
+                   _T("Thread %ld Entry() returned %lu."),
+                   THR_ID(pthread), (unsigned long)pthread->m_exitcode);
+
         {
             wxCriticalSectionLocker lock(thread->m_critsect);
 
@@ -861,12 +873,9 @@ void wxThreadInternal::Wait()
         wxMutexGuiLeave();
 
     wxLogTrace(TRACE_THREADS,
-#ifdef __VMS
-               _T("Starting to wait for thread %ld to exit."), (long long)GetId());
-#else
-               _T("Starting to wait for thread %ld to exit."), (long)GetId());
-#endif
-   
+               _T("Starting to wait for thread %ld to exit."),
+               THR_ID(this));
+
     // to avoid memory leaks we should call pthread_join(), but it must only be
     // done once so use a critical section to serialize the code below
     {
@@ -904,12 +913,9 @@ void wxThreadInternal::Pause()
     wxCHECK_RET( m_state == STATE_PAUSED,
                  wxT("thread must first be paused with wxThread::Pause().") );
 
-#ifdef __VMS
-   wxLogTrace(TRACE_THREADS, _T("Thread %ld goes to sleep."), (long long)GetId());
-#else
-   wxLogTrace(TRACE_THREADS, _T("Thread %ld goes to sleep."), (long)GetId());
-#endif
-   
+   wxLogTrace(TRACE_THREADS,
+              _T("Thread %ld goes to sleep."), THR_ID(this));
+
     // wait until the semaphore is Post()ed from Resume()
     m_semSuspend.Wait();
 }
@@ -923,12 +929,9 @@ void wxThreadInternal::Resume()
     // TestDestroy() since the last call to Pause() for example
     if ( IsReallyPaused() )
     {
-#ifdef __VMS
-       wxLogTrace(TRACE_THREADS, _T("Waking up thread %ld"), (long long)GetId());
-#else
-       wxLogTrace(TRACE_THREADS, _T("Waking up thread %ld"), (long)GetId());
-#endif
-       
+       wxLogTrace(TRACE_THREADS,
+                  _T("Waking up thread %ld"), THR_ID(this));
+
         // wake up Pause()
         m_semSuspend.Post();
 
@@ -937,12 +940,8 @@ void wxThreadInternal::Resume()
     }
     else
     {
-        wxLogTrace(TRACE_THREADS, _T("Thread %ld is not yet really paused"),
-#ifdef __VMS
-                   (long long)GetId());
-#else
-                   (long)GetId());
-#endif
+        wxLogTrace(TRACE_THREADS,
+                   _T("Thread %ld is not yet really paused"), THR_ID(this));
     }
 
     SetState(STATE_RUNNING);
@@ -1015,19 +1014,24 @@ int wxThread::GetCPUCount()
     return -1;
 }
 
+// VMS is a 64 bit system and threads have 64 bit pointers.
+// FIXME: also needed for other systems????
 #ifdef __VMS
-  // VMS is a 64 bit system and threads have 64 bit pointers.
-  // ??? also needed for other systems????
 unsigned long long wxThread::GetCurrentId()
 {
     return (unsigned long long)pthread_self();
-#else
+}
+
+#else // !__VMS
+
 unsigned long wxThread::GetCurrentId()
 {
     return (unsigned long)pthread_self();
-#endif
 }
 
+#endif // __VMS/!__VMS
+
+
 bool wxThread::SetConcurrency(size_t level)
 {
 #ifdef HAVE_THR_SETCONCURRENCY
@@ -1601,11 +1605,8 @@ bool wxThreadModule::OnInit()
 
     gs_tidMain = pthread_self();
 
-#if wxUSE_GUI
     gs_mutexGui = new wxMutex();
-
     gs_mutexGui->Lock();
-#endif // wxUSE_GUI
 
     gs_mutexDeleteThread = new wxMutex();
     gs_condAllDeleted = new wxCondition( *gs_mutexDeleteThread );
@@ -1650,12 +1651,9 @@ void wxThreadModule::OnExit()
         gs_allThreads[0]->Delete();
     }
 
-#if wxUSE_GUI
     // destroy GUI mutex
     gs_mutexGui->Unlock();
-
     delete gs_mutexGui;
-#endif // wxUSE_GUI
 
     // and free TLD slot
     (void)pthread_key_delete(gs_keySelf);
@@ -1704,16 +1702,12 @@ static void DeleteThread(wxThread *This)
 
 void wxMutexGuiEnter()
 {
-#if wxUSE_GUI
     gs_mutexGui->Lock();
-#endif // wxUSE_GUI
 }
 
 void wxMutexGuiLeave()
 {
-#if wxUSE_GUI
     gs_mutexGui->Unlock();
-#endif // wxUSE_GUI
 }
 
 // ----------------------------------------------------------------------------