Override CreateItem so wxListBox can turn its notifications into events.

[wxWidgets.git] / include / wx / thrimpl.cpp

diff --git a/include/wx/thrimpl.cpp b/include/wx/thrimpl.cpp
index d0cf9fd610b2d3bc1c22d04fb7941c274978b409..6e49c573e1afda22b618249ee8cffbaf22101ba7 100644 (file)
--- a/include/wx/thrimpl.cpp
+++ b/include/wx/thrimpl.cpp
@@ -64,19 +64,11 @@ wxMutexError wxMutex::Unlock()
 // wxConditionInternal
 // --------------------------------------------------------------------------
 
-#if defined(__WXMSW__) || defined(__OS2__) || defined(__EMX__)
 // Win32 and OS/2 don't have explicit support for the POSIX condition
 // variables and their events/event semaphores have quite different semantics,
 // so we reimplement the conditions from scratch using the mutexes and
 // semaphores
-#if defined(__OS2__) || defined(__EMX__)
-void InterlockedIncrement(LONG *num)
-{
-  ::DosEnterCritSec();
-  (*num)++;
-  ::DosExitCritSec();
-}
-#endif
+#if defined(__WXMSW__) || defined(__OS2__) || defined(__EMX__)
 
 class wxConditionInternal
 {
@@ -115,7 +107,10 @@ wxConditionInternal::wxConditionInternal(wxMutex& mutex)
 wxCondError wxConditionInternal::Wait()
 {
     // increment the number of waiters
-    ::InterlockedIncrement(&m_numWaiters);
+    {
+        wxCriticalSectionLocker lock(m_csWaiters);
+        m_numWaiters++;
+    }
 
     m_mutex.Unlock();
 
@@ -133,12 +128,20 @@ wxCondError wxConditionInternal::Wait()
     wxSemaError err = m_semaphore.Wait();
     m_mutex.Lock();
 
-    return err == wxSEMA_NO_ERROR ? wxCOND_NO_ERROR : wxCOND_MISC_ERROR;
+    if ( err == wxSEMA_NO_ERROR )
+        return wxCOND_NO_ERROR;
+    else if ( err == wxSEMA_TIMEOUT )
+        return wxCOND_TIMEOUT;
+    else
+        return wxCOND_MISC_ERROR;
 }
 
 wxCondError wxConditionInternal::WaitTimeout(unsigned long milliseconds)
 {
-    ::InterlockedIncrement(&m_numWaiters);
+    {
+        wxCriticalSectionLocker lock(m_csWaiters);
+        m_numWaiters++;
+    }
 
     m_mutex.Unlock();
 
@@ -148,7 +151,7 @@ wxCondError wxConditionInternal::WaitTimeout(unsigned long milliseconds)
 
     wxSemaError err = m_semaphore.WaitTimeout(milliseconds);
 
-    if ( err == wxSEMA_BUSY )
+    if ( err == wxSEMA_TIMEOUT )
     {
         // another potential race condition exists here it is caused when a
         // 'waiting' thread timesout, and returns from WaitForSingleObject, but
@@ -174,7 +177,9 @@ wxCondError wxConditionInternal::WaitTimeout(unsigned long milliseconds)
 
     m_mutex.Lock();
 
-    return err == wxSEMA_NO_ERROR ? wxCOND_NO_ERROR : wxCOND_MISC_ERROR;
+    return err == wxSEMA_NO_ERROR ? wxCOND_NO_ERROR
+                                  : err == wxSEMA_TIMEOUT ? wxCOND_TIMEOUT
+                                                          : wxCOND_MISC_ERROR;
 }
 
 wxCondError wxConditionInternal::Signal()
@@ -207,7 +212,8 @@ wxCondError wxConditionInternal::Broadcast()
 
     return wxCOND_NO_ERROR;
 }
-#endif
+
+#endif // MSW or OS2
 
 // ----------------------------------------------------------------------------
 // wxCondition