]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/thread.cpp
Increase wxStaticText height in wxMSW to align its text with wxTextCtrl.
[wxWidgets.git] / src / msw / thread.cpp
index cc4d13a2e6f37cfb926c3196a5dcd31de2313910..30f9bca117df89ad09d8181a7268097b10177199 100644 (file)
@@ -113,7 +113,7 @@ static DWORD gs_tlsThisThread = 0xFFFFFFFF;
 
 // id of the main thread - the one which can call GUI functions without first
 // calling wxMutexGuiEnter()
-static DWORD gs_idMainThread = 0;
+wxThreadIdType wxThread::ms_idMainThread = 0;
 
 // if it's false, some secondary thread is holding the GUI lock
 static bool gs_bGuiOwnedByMainThread = true;
@@ -189,11 +189,11 @@ private:
     wxMutexError LockTimeout(DWORD milliseconds);
 
     HANDLE m_mutex;
-    
+
     unsigned long m_owningThread;
     wxMutexType m_type;
 
-    DECLARE_NO_COPY_CLASS(wxMutexInternal)
+    wxDECLARE_NO_COPY_CLASS(wxMutexInternal);
 };
 
 // all mutexes are recursive under Win32 so we don't use mutexType
@@ -212,9 +212,9 @@ wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
 
     if ( !m_mutex )
     {
-        wxLogLastError(_T("CreateMutex()"));
+        wxLogLastError(wxT("CreateMutex()"));
     }
-    
+
 }
 
 wxMutexInternal::~wxMutexInternal()
@@ -223,7 +223,7 @@ wxMutexInternal::~wxMutexInternal()
     {
         if ( !::CloseHandle(m_mutex) )
         {
-            wxLogLastError(_T("CloseHandle(mutex)"));
+            wxLogLastError(wxT("CloseHandle(mutex)"));
         }
     }
 }
@@ -249,18 +249,14 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
     }
 
     DWORD rc = ::WaitForSingleObject(m_mutex, milliseconds);
-    if ( rc == WAIT_ABANDONED )
-    {
-        // the previous caller died without releasing the mutex, but now we can
-        // really lock it
-        wxLogDebug(_T("WaitForSingleObject() returned WAIT_ABANDONED"));
-
-        // use 0 timeout, normally we should always get it
-        rc = ::WaitForSingleObject(m_mutex, 0);
-    }
-
     switch ( rc )
     {
+        case WAIT_ABANDONED:
+            // the previous caller died without releasing the mutex, so even
+            // though we did get it, log a message about this
+            wxLogDebug(wxT("WaitForSingleObject() returned WAIT_ABANDONED"));
+            // fall through
+
         case WAIT_OBJECT_0:
             // ok
             break;
@@ -268,22 +264,21 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
         case WAIT_TIMEOUT:
             return wxMUTEX_TIMEOUT;
 
-        case WAIT_ABANDONED:        // checked for above
         default:
             wxFAIL_MSG(wxT("impossible return value in wxMutex::Lock"));
             // fall through
 
         case WAIT_FAILED:
-            wxLogLastError(_T("WaitForSingleObject(mutex)"));
+            wxLogLastError(wxT("WaitForSingleObject(mutex)"));
             return wxMUTEX_MISC_ERROR;
     }
 
     if (m_type == wxMUTEX_DEFAULT)
-    { 
+    {
         // required for checking recursiveness
         m_owningThread = wxThread::GetCurrentId();
     }
-    
+
     return wxMUTEX_NO_ERROR;
 }
 
@@ -294,7 +289,7 @@ wxMutexError wxMutexInternal::Unlock()
 
     if ( !::ReleaseMutex(m_mutex) )
     {
-        wxLogLastError(_T("ReleaseMutex()"));
+        wxLogLastError(wxT("ReleaseMutex()"));
 
         return wxMUTEX_MISC_ERROR;
     }
@@ -333,7 +328,7 @@ public:
 private:
     HANDLE m_semaphore;
 
-    DECLARE_NO_COPY_CLASS(wxSemaphoreInternal)
+    wxDECLARE_NO_COPY_CLASS(wxSemaphoreInternal);
 };
 
 wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
@@ -355,7 +350,7 @@ wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
 #endif
     if ( !m_semaphore )
     {
-        wxLogLastError(_T("CreateSemaphore()"));
+        wxLogLastError(wxT("CreateSemaphore()"));
     }
 }
 
@@ -365,7 +360,7 @@ wxSemaphoreInternal::~wxSemaphoreInternal()
     {
         if ( !::CloseHandle(m_semaphore) )
         {
-            wxLogLastError(_T("CloseHandle(semaphore)"));
+            wxLogLastError(wxT("CloseHandle(semaphore)"));
         }
     }
 }
@@ -383,7 +378,7 @@ wxSemaError wxSemaphoreInternal::WaitTimeout(unsigned long milliseconds)
            return wxSEMA_TIMEOUT;
 
         default:
-            wxLogLastError(_T("WaitForSingleObject(semaphore)"));
+            wxLogLastError(wxT("WaitForSingleObject(semaphore)"));
     }
 
     return wxSEMA_MISC_ERROR;
@@ -400,7 +395,7 @@ wxSemaError wxSemaphoreInternal::Post()
         }
         else
         {
-            wxLogLastError(_T("ReleaseSemaphore"));
+            wxLogLastError(wxT("ReleaseSemaphore"));
             return wxSEMA_MISC_ERROR;
         }
     }
@@ -512,7 +507,7 @@ private:
     // reaches 0 we kill the owning wxThread -- and die ourselves with it
     LONG m_nRef;
 
-    DECLARE_NO_COPY_CLASS(wxThreadInternal)
+    wxDECLARE_NO_COPY_CLASS(wxThreadInternal);
 };
 
 // small class which keeps a thread alive during its lifetime
@@ -639,7 +634,7 @@ void wxThreadInternal::SetPriority(unsigned int priority)
 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
@@ -691,6 +686,8 @@ bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
 
 wxThreadError wxThreadInternal::Kill()
 {
+    m_thread->OnKill();
+
     if ( !::TerminateThread(m_hThread, THREAD_ERROR_EXIT) )
     {
         wxLogSysError(_("Couldn't terminate thread"));
@@ -764,6 +761,8 @@ wxThreadInternal::WaitForTerminate(wxCriticalSection& cs,
         Cancel();
     }
 
+    if ( threadToDelete )
+        threadToDelete->OnDelete();
 
     // now wait for thread to finish
     if ( wxThread::IsMain() )
@@ -931,11 +930,6 @@ wxThread *wxThread::This()
     return thread;
 }
 
-bool wxThread::IsMain()
-{
-    return ::GetCurrentThreadId() == gs_idMainThread || gs_idMainThread == 0;
-}
-
 void wxThread::Yield()
 {
     // 0 argument to Sleep() is special and means to just give away the rest of
@@ -961,7 +955,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 #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 )
@@ -972,7 +966,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
     DWORD_PTR dwProcMask, dwSysMask;
     if ( ::GetProcessAffinityMask(hProcess, &dwProcMask, &dwSysMask) == 0 )
     {
-        wxLogLastError(_T("GetProcessAffinityMask"));
+        wxLogLastError(wxT("GetProcessAffinityMask"));
 
         return false;
     }
@@ -1011,7 +1005,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
     // 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;
     }
@@ -1026,7 +1020,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
     if ( !pfnSetProcessAffinityMask )
     {
-        HMODULE hModKernel = ::LoadLibrary(_T("kernel32"));
+        HMODULE hModKernel = ::LoadLibrary(wxT("kernel32"));
         if ( hModKernel )
         {
             pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)
@@ -1035,7 +1029,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
         // 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 )
@@ -1046,7 +1040,7 @@ bool wxThread::SetConcurrency(size_t WXUNUSED_IN_WINCE(level))
 
     if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
     {
-        wxLogLastError(_T("SetProcessAffinityMask"));
+        wxLogLastError(wxT("SetProcessAffinityMask"));
 
         return false;
     }
@@ -1087,11 +1081,8 @@ wxThreadError wxThread::Run()
 {
     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();
@@ -1124,7 +1115,7 @@ wxThread::ExitCode wxThread::Wait()
     // 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);
 
@@ -1193,28 +1184,28 @@ void wxThread::SetPriority(unsigned int prio)
 
 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
 {
-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));
 
     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
 {
-    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);
@@ -1222,14 +1213,14 @@ bool wxThread::IsAlive() 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()
 {
-    wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
+    wxCriticalSectionLocker lock(const_cast<wxCriticalSection &>(m_critsect));
 
     return m_internal->GetState() == STATE_CANCELED;
 }
@@ -1283,8 +1274,7 @@ bool wxThreadModule::OnInit()
 
     gs_critsectThreadDelete = new wxCriticalSection;
 
-    // no error return for GetCurrentThreadId()
-    gs_idMainThread = ::GetCurrentThreadId();
+    wxThread::ms_idMainThread = wxThread::GetCurrentId();
 
     return true;
 }
@@ -1296,18 +1286,15 @@ void wxThreadModule::OnExit()
         wxLogLastError(wxT("TlsFree failed."));
     }
 
-    delete gs_critsectThreadDelete;
-    gs_critsectThreadDelete = NULL;
+    wxDELETE(gs_critsectThreadDelete);
 
     if ( gs_critsectGui )
     {
         gs_critsectGui->Leave();
-        delete gs_critsectGui;
-        gs_critsectGui = NULL;
+        wxDELETE(gs_critsectGui);
     }
 
-    delete gs_critsectWaitingForGui;
-    gs_critsectWaitingForGui = NULL;
+    wxDELETE(gs_critsectWaitingForGui);
 }
 
 // ----------------------------------------------------------------------------
@@ -1398,7 +1385,7 @@ bool WXDLLIMPEXP_BASE wxGuiOwnedByMainThread()
 void WXDLLIMPEXP_BASE wxWakeUpMainThread()
 {
     // sending any message would do - hopefully WM_NULL is harmless enough
-    if ( !::PostThreadMessage(gs_idMainThread, WM_NULL, 0, 0) )
+    if ( !::PostThreadMessage(wxThread::GetMainId(), WM_NULL, 0, 0) )
     {
         // should never happen
         wxLogLastError(wxT("PostThreadMessage(WM_NULL)"));