Corrected problem related to wxSIZE_ALLOW_MINUS_ONE

[wxWidgets.git] / src / msw / thread.cpp

diff --git a/src/msw/thread.cpp b/src/msw/thread.cpp
index df5e9a437f2ae0de74d3185acb2b10db8e0c730a..a7aff134f26274642516379f652b072668492c72 100644 (file)
--- a/src/msw/thread.cpp
+++ b/src/msw/thread.cpp
@@ -41,7 +41,7 @@
     #define _MT
 #endif
 
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
     #include <process.h>
 #endif
 
@@ -99,33 +99,43 @@ static bool gs_waitingForThread = FALSE;
 class wxMutexInternal
 {
 public:
-    HANDLE p_mutex;
+    wxMutexInternal()
+    {
+        m_mutex = ::CreateMutex(NULL, FALSE, NULL);
+        if ( !m_mutex )
+        {
+            wxLogSysError(_("Can not create mutex"));
+        }
+    }
+
+    ~wxMutexInternal() { if ( m_mutex ) CloseHandle(m_mutex); }
+
+public:
+    HANDLE m_mutex;
 };
 
 wxMutex::wxMutex()
 {
     m_internal = new wxMutexInternal;
-    m_internal->p_mutex = CreateMutex(NULL, FALSE, NULL);
-    if ( !m_internal->p_mutex )
-    {
-        wxLogSysError(_("Can not create mutex."));
-    }
 
     m_locked = 0;
 }
 
 wxMutex::~wxMutex()
 {
-    if (m_locked > 0)
-        wxLogDebug(wxT("Warning: freeing a locked mutex (%d locks)."), m_locked);
-    CloseHandle(m_internal->p_mutex);
+    if ( m_locked > 0 )
+    {
+        wxLogDebug(_T("Warning: freeing a locked mutex (%d locks)."), m_locked);
+    }
+
+    delete m_internal;
 }
 
 wxMutexError wxMutex::Lock()
 {
     DWORD ret;
 
-    ret = WaitForSingleObject(m_internal->p_mutex, INFINITE);
+    ret = WaitForSingleObject(m_internal->m_mutex, INFINITE);
     switch ( ret )
     {
         case WAIT_ABANDONED:
@@ -152,7 +162,7 @@ wxMutexError wxMutex::TryLock()
 {
     DWORD ret;
 
-    ret = WaitForSingleObject(m_internal->p_mutex, 0);
+    ret = WaitForSingleObject(m_internal->m_mutex, 0);
     if (ret == WAIT_TIMEOUT || ret == WAIT_ABANDONED)
         return wxMUTEX_BUSY;
 
@@ -165,7 +175,7 @@ wxMutexError wxMutex::Unlock()
     if (m_locked > 0)
         m_locked--;
 
-    BOOL ret = ReleaseMutex(m_internal->p_mutex);
+    BOOL ret = ReleaseMutex(m_internal->m_mutex);
     if ( ret == 0 )
     {
         wxLogSysError(_("Couldn't release a mutex"));
@@ -363,6 +373,12 @@ private:
 
 DWORD wxThreadInternal::WinThreadStart(wxThread *thread)
 {
+    // first of all, check whether we hadn't been cancelled already
+    if ( thread->m_internal->GetState() == STATE_EXITED )
+    {
+        return (DWORD)-1;
+    }
+
     // store the thread object in the TLS
     if ( !::TlsSetValue(gs_tlsThisThread, thread) )
     {
@@ -426,11 +442,11 @@ bool wxThreadInternal::Create(wxThread *thread)
     // for compilers which have it, we should use C RTL function for thread
     // creation instead of Win32 API one because otherwise we will have memory
     // leaks if the thread uses C RTL (and most threads do)
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
     typedef unsigned (__stdcall *RtlThreadStart)(void *);
 
     m_hThread = (HANDLE)_beginthreadex(NULL, 0,
-                                       (RtlThreadStart)    
+                                       (RtlThreadStart)
                                        wxThreadInternal::WinThreadStart,
                                        thread, CREATE_SUSPENDED,
                                        (unsigned int *)&m_tid);
@@ -515,6 +531,10 @@ bool wxThread::IsMain()
     return ::GetCurrentThreadId() == gs_idMainThread;
 }
 
+#ifdef Yield
+#undef Yield
+#endif
+
 void wxThread::Yield()
 {
     // 0 argument to Sleep() is special and means to just give away the rest of
@@ -595,7 +615,7 @@ bool wxThread::SetConcurrency(size_t level)
     // set it: we can't link to SetProcessAffinityMask() because it doesn't
     // exist in Win9x, use RT binding instead
 
-    typedef BOOL (*SETPROCESSAFFINITYMASK)(HANDLE, DWORD *);
+    typedef BOOL (*SETPROCESSAFFINITYMASK)(HANDLE, DWORD);
 
     // can use static var because we're always in the main thread here
     static SETPROCESSAFFINITYMASK pfnSetProcessAffinityMask = NULL;
@@ -606,7 +626,12 @@ bool wxThread::SetConcurrency(size_t level)
         if ( hModKernel )
         {
             pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)
-                ::GetProcAddress(hModKernel, _T("SetProcessAffinityMask"));
+                ::GetProcAddress(hModKernel,
+#if defined(__BORLANDC__) && (__BORLANDC__ <= 0x520)
+                                 "SetProcessAffinityMask");
+#else
+                                 _T("SetProcessAffinityMask"));
+#endif
         }
 
         // we've discovered a MT version of Win9x!
@@ -621,7 +646,7 @@ bool wxThread::SetConcurrency(size_t level)
         return FALSE;
     }
 
-    if ( pfnSetProcessAffinityMask(hProcess, &dwProcMask) == 0 )
+    if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
     {
         wxLogLastError(_T("SetProcessAffinityMask"));
 
@@ -714,11 +739,29 @@ wxThreadError wxThread::Delete(ExitCode *pRc)
     ExitCode rc = 0;
 
     // Delete() is always safe to call, so consider all possible states
-    if ( IsPaused() )
+
+    // has the thread started to run?
+    bool shouldResume = FALSE;
+
+    {
+        wxCriticalSectionLocker lock(m_critsect);
+
+        if ( m_internal->GetState() == STATE_NEW )
+        {
+            // WinThreadStart() will see it and terminate immediately
+            m_internal->SetState(STATE_EXITED);
+
+            shouldResume = TRUE;
+        }
+    }
+
+    // is the thread paused?
+    if ( shouldResume || IsPaused() )
         Resume();
 
     HANDLE hThread = m_internal->GetHandle();
 
+    // does is still run?
     if ( IsRunning() )
     {
         if ( IsMain() )
@@ -869,7 +912,7 @@ void wxThread::Exit(ExitCode status)
         delete this;
     }
 
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
     _endthreadex((unsigned)status);
 #else // !VC++
     ::ExitThread((DWORD)status);