Fixed some warnings

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

diff --git a/src/msw/thread.cpp b/src/msw/thread.cpp
index 36fbedc4c5a9d30d8728323330123e6684386d35..90d47a663e6939cca4bf64451bf4daffc7a55554 100644 (file)
--- a/src/msw/thread.cpp
+++ b/src/msw/thread.cpp
@@ -40,6 +40,8 @@
 
 #include "wx/except.h"
 
 
 #include "wx/except.h"
 

+#include "wx/dynlib.h"
+

 // must have this symbol defined to get _beginthread/_endthread declarations
 #ifndef _MT
     #define _MT
 // must have this symbol defined to get _beginthread/_endthread declarations
 #ifndef _MT
     #define _MT


@@ -62,7 +64,7 @@
 #if defined(__VISUALC__) || \
     (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500)) || \
     (defined(__GNUG__) && defined(__MSVCRT__)) || \
 #if defined(__VISUALC__) || \
     (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500)) || \
     (defined(__GNUG__) && defined(__MSVCRT__)) || \

-    defined(__WATCOMC__) || defined(__MWERKS__)
+    defined(__WATCOMC__)

 
 #ifndef __WXWINCE__
     #undef wxUSE_BEGIN_THREAD
 
 #ifndef __WXWINCE__
     #undef wxUSE_BEGIN_THREAD


@@ -163,6 +165,25 @@ void wxCriticalSection::Enter()
     ::EnterCriticalSection((CRITICAL_SECTION *)m_buffer);
 }
 
     ::EnterCriticalSection((CRITICAL_SECTION *)m_buffer);
 }
 

+bool wxCriticalSection::TryEnter()
+{
+#if wxUSE_DYNLIB_CLASS
+    typedef BOOL
+      (WINAPI *TryEnterCriticalSection_t)(LPCRITICAL_SECTION lpCriticalSection);
+
+    static TryEnterCriticalSection_t
+        pfnTryEnterCriticalSection = (TryEnterCriticalSection_t)
+            wxDynamicLibrary(wxT("kernel32.dll")).
+                GetSymbol(wxT("TryEnterCriticalSection"));
+
+    return pfnTryEnterCriticalSection
+            ? (*pfnTryEnterCriticalSection)((CRITICAL_SECTION *)m_buffer) != 0
+            : false;
+#else
+    return false;
+#endif
+}
+

 void wxCriticalSection::Leave()
 {
     ::LeaveCriticalSection((CRITICAL_SECTION *)m_buffer);
 void wxCriticalSection::Leave()
 {
     ::LeaveCriticalSection((CRITICAL_SECTION *)m_buffer);


@@ -212,7 +233,7 @@ wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
 
     if ( !m_mutex )
     {
 
     if ( !m_mutex )
     {

-        wxLogLastError(_T("CreateMutex()"));
+        wxLogLastError(wxT("CreateMutex()"));

     }
 
 }
     }
 
 }


@@ -223,7 +244,7 @@ wxMutexInternal::~wxMutexInternal()
     {
         if ( !::CloseHandle(m_mutex) )
         {
     {
         if ( !::CloseHandle(m_mutex) )
         {

-            wxLogLastError(_T("CloseHandle(mutex)"));
+            wxLogLastError(wxT("CloseHandle(mutex)"));

         }
     }
 }
         }
     }
 }


@@ -254,7 +275,7 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
         case WAIT_ABANDONED:
             // the previous caller died without releasing the mutex, so even
             // though we did get it, log a message about this
         case WAIT_ABANDONED:
             // the previous caller died without releasing the mutex, so even
             // though we did get it, log a message about this

-            wxLogDebug(_T("WaitForSingleObject() returned WAIT_ABANDONED"));
+            wxLogDebug(wxT("WaitForSingleObject() returned WAIT_ABANDONED"));

             // fall through
 
         case WAIT_OBJECT_0:
             // fall through
 
         case WAIT_OBJECT_0:


@@ -269,7 +290,7 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
             // fall through
 
         case WAIT_FAILED:
             // fall through
 
         case WAIT_FAILED:

-            wxLogLastError(_T("WaitForSingleObject(mutex)"));
+            wxLogLastError(wxT("WaitForSingleObject(mutex)"));

             return wxMUTEX_MISC_ERROR;
     }
 
             return wxMUTEX_MISC_ERROR;
     }
 


@@ -289,7 +310,7 @@ wxMutexError wxMutexInternal::Unlock()
 
     if ( !::ReleaseMutex(m_mutex) )
     {
 
     if ( !::ReleaseMutex(m_mutex) )
     {

-        wxLogLastError(_T("ReleaseMutex()"));
+        wxLogLastError(wxT("ReleaseMutex()"));

 
         return wxMUTEX_MISC_ERROR;
     }
 
         return wxMUTEX_MISC_ERROR;
     }


@@ -350,7 +371,7 @@ wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
 #endif
     if ( !m_semaphore )
     {
 #endif
     if ( !m_semaphore )
     {

-        wxLogLastError(_T("CreateSemaphore()"));
+        wxLogLastError(wxT("CreateSemaphore()"));

     }
 }
 
     }
 }
 


@@ -360,7 +381,7 @@ wxSemaphoreInternal::~wxSemaphoreInternal()
     {
         if ( !::CloseHandle(m_semaphore) )
         {
     {
         if ( !::CloseHandle(m_semaphore) )
         {

-            wxLogLastError(_T("CloseHandle(semaphore)"));
+            wxLogLastError(wxT("CloseHandle(semaphore)"));

         }
     }
 }
         }
     }
 }


@@ -378,7 +399,7 @@ wxSemaError wxSemaphoreInternal::WaitTimeout(unsigned long milliseconds)
            return wxSEMA_TIMEOUT;
 
         default:
            return wxSEMA_TIMEOUT;
 
         default:

-            wxLogLastError(_T("WaitForSingleObject(semaphore)"));
+            wxLogLastError(wxT("WaitForSingleObject(semaphore)"));

     }
 
     return wxSEMA_MISC_ERROR;
     }
 
     return wxSEMA_MISC_ERROR;


@@ -395,7 +416,7 @@ wxSemaError wxSemaphoreInternal::Post()
         }
         else
         {
         }
         else
         {

-            wxLogLastError(_T("ReleaseSemaphore"));
+            wxLogLastError(wxT("ReleaseSemaphore"));

             return wxSEMA_MISC_ERROR;
         }
     }
             return wxSEMA_MISC_ERROR;
         }
     }


@@ -421,7 +442,7 @@ public:
         m_thread = thread;
         m_hThread = 0;
         m_state = STATE_NEW;
         m_thread = thread;
         m_hThread = 0;
         m_state = STATE_NEW;

-        m_priority = WXTHREAD_DEFAULT_PRIORITY;
+        m_priority = wxPRIORITY_DEFAULT;

         m_nRef = 1;
     }
 
         m_nRef = 1;
     }
 


@@ -450,6 +471,7 @@ public:
     // (politely, this is not Kill()!) to do it
     wxThreadError WaitForTerminate(wxCriticalSection& cs,
                                    wxThread::ExitCode *pRc,
     // (politely, this is not Kill()!) to do it
     wxThreadError WaitForTerminate(wxCriticalSection& cs,
                                    wxThread::ExitCode *pRc,

+                                   wxThreadWait waitMode,

                                    wxThread *threadToDelete = NULL);
 
     // kill the thread unconditionally
                                    wxThread *threadToDelete = NULL);
 
     // kill the thread unconditionally


@@ -545,7 +567,7 @@ THREAD_RETVAL wxThreadInternal::DoThreadStart(wxThread *thread)
         // store the thread object in the TLS
         if ( !::TlsSetValue(gs_tlsThisThread, thread) )
         {
         // store the thread object in the TLS
         if ( !::TlsSetValue(gs_tlsThisThread, thread) )
         {

-            wxLogSysError(_("Can not start thread: error writing TLS."));
+            wxLogSysError(_("Cannot start thread: error writing TLS."));

 
             return THREAD_ERROR_EXIT;
         }
 
             return THREAD_ERROR_EXIT;
         }


@@ -567,9 +589,14 @@ THREAD_RETVAL THREAD_CALLCONV wxThreadInternal::WinThreadStart(void *param)
     // each thread has its own SEH translator so install our own a.s.a.p.
     DisableAutomaticSETranslator();
 
     // each thread has its own SEH translator so install our own a.s.a.p.
     DisableAutomaticSETranslator();
 

+    // NB: Notice that we can't use wxCriticalSectionLocker in this function as
+    //     we use SEH and it's incompatible with C++ object dtors.
+

     // first of all, check whether we hadn't been cancelled already and don't
     // start the user code at all then
     // first of all, check whether we hadn't been cancelled already and don't
     // start the user code at all then

+    thread->m_critsect.Enter();

     const bool hasExited = thread->m_internal->GetState() == STATE_EXITED;
     const bool hasExited = thread->m_internal->GetState() == STATE_EXITED;

+    thread->m_critsect.Leave();

 
     // run the thread function itself inside a SEH try/except block
     wxSEH_TRY
 
     // run the thread function itself inside a SEH try/except block
     wxSEH_TRY


@@ -587,10 +614,6 @@ THREAD_RETVAL THREAD_CALLCONV wxThreadInternal::WinThreadStart(void *param)
     const bool isDetached = thread->IsDetached();
     if ( !hasExited )
     {
     const bool isDetached = thread->IsDetached();
     if ( !hasExited )
     {

-        // enter m_critsect before changing the thread state
-        //
-        // NB: can't use wxCriticalSectionLocker here as we use SEH and it's
-        //     incompatible with C++ object dtors

         thread->m_critsect.Enter();
         thread->m_internal->SetState(STATE_EXITED);
         thread->m_critsect.Leave();
         thread->m_critsect.Enter();
         thread->m_internal->SetState(STATE_EXITED);
         thread->m_critsect.Leave();


@@ -634,7 +657,7 @@ void wxThreadInternal::SetPriority(unsigned int priority)
 bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
 {
     wxASSERT_MSG( m_state == STATE_NEW && !m_hThread,
 bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
 {
     wxASSERT_MSG( m_state == STATE_NEW && !m_hThread,

-                    _T("Create()ing thread twice?") );
+                    wxT("Create()ing thread twice?") );

 
     // 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
 
     // 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


@@ -676,7 +699,7 @@ bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
         return false;
     }
 
         return false;
     }
 

-    if ( m_priority != WXTHREAD_DEFAULT_PRIORITY )
+    if ( m_priority != wxPRIORITY_DEFAULT )

     {
         SetPriority(m_priority);
     }
     {
         SetPriority(m_priority);
     }


@@ -686,6 +709,8 @@ bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
 
 wxThreadError wxThreadInternal::Kill()
 {
 
 wxThreadError wxThreadInternal::Kill()
 {

+    m_thread->OnKill();
+

     if ( !::TerminateThread(m_hThread, THREAD_ERROR_EXIT) )
     {
         wxLogSysError(_("Couldn't terminate thread"));
     if ( !::TerminateThread(m_hThread, THREAD_ERROR_EXIT) )
     {
         wxLogSysError(_("Couldn't terminate thread"));


@@ -701,6 +726,7 @@ wxThreadError wxThreadInternal::Kill()
 wxThreadError
 wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
                                    wxThread::ExitCode *pRc,
 wxThreadError
 wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
                                    wxThread::ExitCode *pRc,

+                                   wxThreadWait waitMode,

                                    wxThread *threadToDelete)
 {
     // prevent the thread C++ object from disappearing as long as we are using
                                    wxThread *threadToDelete)
 {
     // prevent the thread C++ object from disappearing as long as we are using


@@ -759,6 +785,8 @@ wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
         Cancel();
     }
 
         Cancel();
     }
 

+    if ( threadToDelete )
+        threadToDelete->OnDelete();

 
     // now wait for thread to finish
     if ( wxThread::IsMain() )
 
     // now wait for thread to finish
     if ( wxThread::IsMain() )


@@ -788,7 +816,7 @@ wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
         wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
         if ( traits )
         {
         wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
         if ( traits )
         {

-            result = traits->WaitForThread(m_hThread);
+            result = traits->WaitForThread(m_hThread, waitMode);

         }
         else // can't wait for the thread
         {
         }
         else // can't wait for the thread
         {


@@ -800,7 +828,7 @@ wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
         {
             case 0xFFFFFFFF:
                 // error
         {
             case 0xFFFFFFFF:
                 // error

-                wxLogSysError(_("Can not wait for thread termination"));
+                wxLogSysError(_("Cannot wait for thread termination"));

                 Kill();
                 return wxTHREAD_KILLED;
 
                 Kill();
                 return wxTHREAD_KILLED;
 


@@ -877,7 +905,8 @@ bool wxThreadInternal::Suspend()
     DWORD nSuspendCount = ::SuspendThread(m_hThread);
     if ( nSuspendCount == (DWORD)-1 )
     {
     DWORD nSuspendCount = ::SuspendThread(m_hThread);
     if ( nSuspendCount == (DWORD)-1 )
     {

-        wxLogSysError(_("Can not suspend thread %x"), m_hThread);
+        wxLogSysError(_("Cannot suspend thread %lx"),
+                      static_cast<unsigned long>(wxPtrToUInt(m_hThread)));

 
         return false;
     }
 
         return false;
     }


@@ -892,7 +921,8 @@ bool wxThreadInternal::Resume()
     DWORD nSuspendCount = ::ResumeThread(m_hThread);
     if ( nSuspendCount == (DWORD)-1 )
     {
     DWORD nSuspendCount = ::ResumeThread(m_hThread);
     if ( nSuspendCount == (DWORD)-1 )
     {

-        wxLogSysError(_("Can not resume thread %x"), m_hThread);
+        wxLogSysError(_("Cannot resume thread %lx"),
+                      static_cast<unsigned long>(wxPtrToUInt(m_hThread)));

 
         return false;
     }
 
         return false;
     }


@@ -951,7 +981,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 #ifdef __WXWINCE__
     return false;
 #else
 #ifdef __WXWINCE__
     return false;
 #else

-    wxASSERT_MSG( IsMain(), _T("should only be called from the main thread") );
+    wxASSERT_MSG( IsMain(), wxT("should only be called from the main thread") );

 
     // ok only for the default one
     if ( level == 0 )
 
     // ok only for the default one
     if ( level == 0 )


@@ -962,7 +992,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
     DWORD_PTR dwProcMask, dwSysMask;
     if ( ::GetProcessAffinityMask(hProcess, &dwProcMask, &dwSysMask) == 0 )
     {
     DWORD_PTR dwProcMask, dwSysMask;
     if ( ::GetProcessAffinityMask(hProcess, &dwProcMask, &dwSysMask) == 0 )
     {

-        wxLogLastError(_T("GetProcessAffinityMask"));
+        wxLogLastError(wxT("GetProcessAffinityMask"));

 
         return false;
     }
 
         return false;
     }


@@ -1001,7 +1031,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
     // could we set all bits?
     if ( level != 0 )
     {
     // could we set all bits?
     if ( level != 0 )
     {

-        wxLogDebug(_T("bad level %u in wxThread::SetConcurrency()"), level);
+        wxLogDebug(wxT("bad level %u in wxThread::SetConcurrency()"), level);

 
         return false;
     }
 
         return false;
     }


@@ -1016,7 +1046,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
     if ( !pfnSetProcessAffinityMask )
     {
 
     if ( !pfnSetProcessAffinityMask )
     {

-        HMODULE hModKernel = ::LoadLibrary(_T("kernel32"));
+        HMODULE hModKernel = ::LoadLibrary(wxT("kernel32"));

         if ( hModKernel )
         {
             pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)
         if ( hModKernel )
         {
             pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)


@@ -1025,7 +1055,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
         // we've discovered a MT version of Win9x!
         wxASSERT_MSG( pfnSetProcessAffinityMask,
 
         // we've discovered a MT version of Win9x!
         wxASSERT_MSG( pfnSetProcessAffinityMask,

-                      _T("this system has several CPUs but no SetProcessAffinityMask function?") );
+                      wxT("this system has several CPUs but no SetProcessAffinityMask function?") );

     }
 
     if ( !pfnSetProcessAffinityMask )
     }
 
     if ( !pfnSetProcessAffinityMask )


@@ -1036,7 +1066,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
     if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
     {
 
     if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
     {

-        wxLogLastError(_T("SetProcessAffinityMask"));
+        wxLogLastError(wxT("SetProcessAffinityMask"));

 
         return false;
     }
 
         return false;
     }


@@ -1077,11 +1107,8 @@ wxThreadError wxThread::Run()
 {
     wxCriticalSectionLocker lock(m_critsect);
 
 {
     wxCriticalSectionLocker lock(m_critsect);
 

-    if ( m_internal->GetState() != STATE_NEW )
-    {
-        // actually, it may be almost any state at all, not only STATE_RUNNING
-        return wxTHREAD_RUNNING;
-    }
+    wxCHECK_MSG( m_internal->GetState() == STATE_NEW, wxTHREAD_RUNNING,
+             wxT("thread may only be started once after Create()") );

 
     // the thread has just been created and is still suspended - let it run
     return Resume();
 
     // the thread has just been created and is still suspended - let it run
     return Resume();


@@ -1107,23 +1134,23 @@ wxThreadError wxThread::Resume()
 // stopping thread
 // ---------------
 
 // stopping thread
 // ---------------
 

-wxThread::ExitCode wxThread::Wait()
+wxThread::ExitCode wxThread::Wait(wxThreadWait waitMode)

 {
     ExitCode rc = wxUIntToPtr(THREAD_ERROR_EXIT);
 
     // although under Windows we can wait for any thread, it's an error to
     // wait for a detached one in wxWin API
     wxCHECK_MSG( !IsDetached(), rc,
 {
     ExitCode rc = wxUIntToPtr(THREAD_ERROR_EXIT);
 
     // although under Windows we can wait for any thread, it's an error to
     // wait for a detached one in wxWin API
     wxCHECK_MSG( !IsDetached(), rc,

-                 _T("wxThread::Wait(): can't wait for detached thread") );
+                 wxT("wxThread::Wait(): can't wait for detached thread") );

 
 

-    (void)m_internal->WaitForTerminate(m_critsect, &rc);
+    (void)m_internal->WaitForTerminate(m_critsect, &rc, waitMode);

 
     return rc;
 }
 
 
     return rc;
 }
 

-wxThreadError wxThread::Delete(ExitCode *pRc)
+wxThreadError wxThread::Delete(ExitCode *pRc, wxThreadWait waitMode)

 {
 {

-    return m_internal->WaitForTerminate(m_critsect, pRc, this);
+    return m_internal->WaitForTerminate(m_critsect, pRc, waitMode, this);

 }
 
 wxThreadError wxThread::Kill()
 }
 
 wxThreadError wxThread::Kill()


@@ -1149,6 +1176,8 @@ wxThreadError wxThread::Kill()
 
 void wxThread::Exit(ExitCode status)
 {
 
 void wxThread::Exit(ExitCode status)
 {

+    wxThreadInternal::DoThreadOnExit(this);
+

     m_internal->Free();
 
     if ( IsDetached() )
     m_internal->Free();
 
     if ( IsDetached() )


@@ -1183,28 +1212,28 @@ void wxThread::SetPriority(unsigned int prio)
 
 unsigned int wxThread::GetPriority() const
 {
 
 unsigned int wxThread::GetPriority() const
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return m_internal->GetPriority();
 }
 
 unsigned long wxThread::GetId() const
 {
 
     return m_internal->GetPriority();
 }
 
 unsigned long wxThread::GetId() const
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return (unsigned long)m_internal->GetId();
 }
 
 bool wxThread::IsRunning() const
 {
 
     return (unsigned long)m_internal->GetId();
 }
 
 bool wxThread::IsRunning() const
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return m_internal->GetState() == STATE_RUNNING;
 }
 
 bool wxThread::IsAlive() const
 {
 
     return m_internal->GetState() == STATE_RUNNING;
 }
 
 bool wxThread::IsAlive() const
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return (m_internal->GetState() == STATE_RUNNING) ||
            (m_internal->GetState() == STATE_PAUSED);
 
     return (m_internal->GetState() == STATE_RUNNING) ||
            (m_internal->GetState() == STATE_PAUSED);


@@ -1212,14 +1241,14 @@ bool wxThread::IsAlive() const
 
 bool wxThread::IsPaused() const
 {
 
 bool wxThread::IsPaused() const
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return m_internal->GetState() == STATE_PAUSED;
 }
 
 bool wxThread::TestDestroy()
 {
 
     return m_internal->GetState() == STATE_PAUSED;
 }
 
 bool wxThread::TestDestroy()
 {

-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));

 
     return m_internal->GetState() == STATE_CANCELED;
 }
 
     return m_internal->GetState() == STATE_CANCELED;
 }


@@ -1261,7 +1290,7 @@ bool wxThreadModule::OnInit()
         ::TlsFree(gs_tlsThisThread);
         gs_tlsThisThread = 0xFFFFFFFF;
 
         ::TlsFree(gs_tlsThisThread);
         gs_tlsThisThread = 0xFFFFFFFF;
 

-        wxLogSysError(_("Thread module initialization failed: can not store value in thread local storage"));
+        wxLogSysError(_("Thread module initialization failed: cannot store value in thread local storage"));

 
         return false;
     }
 
         return false;
     }


@@ -1285,18 +1314,15 @@ void wxThreadModule::OnExit()
         wxLogLastError(wxT("TlsFree failed."));
     }
 
         wxLogLastError(wxT("TlsFree failed."));
     }
 

-    delete gs_critsectThreadDelete;
-    gs_critsectThreadDelete = NULL;
+    wxDELETE(gs_critsectThreadDelete);

 
     if ( gs_critsectGui )
     {
         gs_critsectGui->Leave();
 
     if ( gs_critsectGui )
     {
         gs_critsectGui->Leave();

-        delete gs_critsectGui;
-        gs_critsectGui = NULL;
+        wxDELETE(gs_critsectGui);

     }
 
     }
 

-    delete gs_critsectWaitingForGui;
-    gs_critsectWaitingForGui = NULL;
+    wxDELETE(gs_critsectWaitingForGui);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------