remove unused variable assignment, closes #14928

[wxWidgets.git] / include / wx / thread.h

diff --git a/include/wx/thread.h b/include/wx/thread.h
index ce17e6438d93ddc5b2aa1cc9a1f9bd02b5571e66..1cc9857b6556d5dcb62646356fa31bb8e3bb325e 100644 (file)
--- a/include/wx/thread.h
+++ b/include/wx/thread.h
@@ -219,7 +219,7 @@ private:
 
 // in order to avoid any overhead under platforms where critical sections are
 // just mutexes make all wxCriticalSection class functions inline
-#if !defined(__WXMSW__)
+#if !defined(__WINDOWS__)
     #define wxCRITSECT_IS_MUTEX 1
 
     #define wxCRITSECT_INLINE WXEXPORT inline
@@ -249,13 +249,16 @@ public:
     // enter the section (the same as locking a mutex)
     wxCRITSECT_INLINE void Enter();
 
+    // try to enter the section (the same as trying to lock a mutex)
+    wxCRITSECT_INLINE bool TryEnter();
+
     // leave the critical section (same as unlocking a mutex)
     wxCRITSECT_INLINE void Leave();
 
 private:
 #if wxCRITSECT_IS_MUTEX
     wxMutex m_mutex;
-#elif defined(__WXMSW__)
+#elif defined(__WINDOWS__)
     // we can't allocate any memory in the ctor, so use placement new -
     // unfortunately, we have to hardcode the sizeof() here because we can't
     // include windows.h from this public header and we also have to use the
@@ -263,10 +266,6 @@ private:
     //
     // if CRITICAL_SECTION size changes in Windows, you'll get an assert from
     // thread.cpp and will need to increase the buffer size
-    //
-    // finally, we need this typedef instead of declaring m_buffer directly
-    // because otherwise the assert mentioned above wouldn't compile with some
-    // compilers (notably CodeWarrior 8)
 #ifdef __WIN64__
     typedef char wxCritSectBuffer[40];
 #else // __WIN32__
@@ -291,6 +290,7 @@ private:
     inline wxCriticalSection::~wxCriticalSection() { }
 
     inline void wxCriticalSection::Enter() { (void)m_mutex.Lock(); }
+    inline bool wxCriticalSection::TryEnter() { return m_mutex.TryLock() == wxMUTEX_NO_ERROR; }
     inline void wxCriticalSection::Leave() { (void)m_mutex.Unlock(); }
 #endif // wxCRITSECT_IS_MUTEX
 
@@ -840,7 +840,7 @@ public:
 
 #if wxUSE_THREADS
 
-#if defined(__WXMSW__) || defined(__OS2__) || defined(__EMX__) || defined(__WXOSX__)
+#if defined(__WINDOWS__) || defined(__OS2__) || defined(__EMX__) || defined(__DARWIN__)
     // unlock GUI if there are threads waiting for and lock it back when
     // there are no more of them - should be called periodically by the main
     // thread
@@ -852,7 +852,7 @@ public:
     // wakes up the main thread if it's sleeping inside ::GetMessage()
     extern void WXDLLIMPEXP_BASE wxWakeUpMainThread();
 
-#ifndef __WXOSX__
+#ifndef __DARWIN__
     // return true if the main thread is waiting for some other to terminate:
     // wxApp then should block all "dangerous" messages
     extern bool WXDLLIMPEXP_BASE wxIsWaitingForThread();