#include "wx/osx/private.h"
#include "wx/osx/core/cfref.h"
+#include "wx/thread.h"
#if wxUSE_GUI
#include "wx/nonownedwnd.h"
if ( !cffd )
return NULL;
- source->SetFileDescriptor(cffd.release());
-
wxCFRef<CFRunLoopSourceRef>
cfsrc(CFFileDescriptorCreateRunLoopSource(kCFAllocatorDefault, cffd, 0));
if ( !cfsrc )
CFRunLoopRef cfloop = CFGetCurrentRunLoop();
CFRunLoopAddSource(cfloop, cfsrc, kCFRunLoopDefaultMode);
+ source->SetFileDescriptor(cffd.release());
+
return source.release();
}
#endif // wxUSE_EVENTLOOP_SOURCE
-void wxObserverCallBack(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info)
+void wxCFEventLoop::OSXCommonModeObserverCallBack(CFRunLoopObserverRef observer, int activity, void *info)
+{
+ wxCFEventLoop * eventloop = static_cast<wxCFEventLoop *>(info);
+ if ( eventloop )
+ eventloop->CommonModeObserverCallBack(observer, activity);
+}
+
+void wxCFEventLoop::OSXDefaultModeObserverCallBack(CFRunLoopObserverRef observer, int activity, void *info)
{
wxCFEventLoop * eventloop = static_cast<wxCFEventLoop *>(info);
if ( eventloop )
- eventloop->ObserverCallBack(observer, activity);
+ eventloop->DefaultModeObserverCallBack(observer, activity);
}
-void wxCFEventLoop::ObserverCallBack(CFRunLoopObserverRef observer, int activity)
+void wxCFEventLoop::CommonModeObserverCallBack(CFRunLoopObserverRef WXUNUSED(observer), int activity)
{
if ( activity & kCFRunLoopBeforeTimers )
{
else
{
#if wxUSE_THREADS
- wxMutexGuiLeave();
- wxMilliSleep(20);
- wxMutexGuiEnter();
+ wxMutexGuiLeaveOrEnter();
#endif
}
}
}
+void
+wxCFEventLoop::DefaultModeObserverCallBack(CFRunLoopObserverRef WXUNUSED(observer),
+ int WXUNUSED(activity))
+{
+ /*
+ if ( activity & kCFRunLoopBeforeTimers )
+ {
+ }
+
+ if ( activity & kCFRunLoopBeforeWaiting )
+ {
+ }
+ */
+}
+
+
wxCFEventLoop::wxCFEventLoop()
{
m_shouldExit = false;
CFRunLoopObserverContext ctxt;
bzero( &ctxt, sizeof(ctxt) );
ctxt.info = this;
- m_runLoopObserver = CFRunLoopObserverCreate( kCFAllocatorDefault, kCFRunLoopBeforeTimers | kCFRunLoopBeforeWaiting , true /* repeats */, 0,
- wxObserverCallBack, &ctxt );
- CFRunLoopAddObserver(m_runLoop, m_runLoopObserver, kCFRunLoopDefaultMode);
+ m_commonModeRunLoopObserver = CFRunLoopObserverCreate( kCFAllocatorDefault, kCFRunLoopBeforeTimers | kCFRunLoopBeforeWaiting , true /* repeats */, 0,
+ (CFRunLoopObserverCallBack) wxCFEventLoop::OSXCommonModeObserverCallBack, &ctxt );
+ CFRunLoopAddObserver(m_runLoop, m_commonModeRunLoopObserver, kCFRunLoopCommonModes);
+ CFRelease(m_commonModeRunLoopObserver);
+
+ m_defaultModeRunLoopObserver = CFRunLoopObserverCreate( kCFAllocatorDefault, kCFRunLoopBeforeTimers | kCFRunLoopBeforeWaiting , true /* repeats */, 0,
+ (CFRunLoopObserverCallBack) wxCFEventLoop::OSXDefaultModeObserverCallBack, &ctxt );
+ CFRunLoopAddObserver(m_runLoop, m_defaultModeRunLoopObserver, kCFRunLoopDefaultMode);
+ CFRelease(m_defaultModeRunLoopObserver);
}
wxCFEventLoop::~wxCFEventLoop()
{
- CFRunLoopRemoveObserver(m_runLoop, m_runLoopObserver, kCFRunLoopDefaultMode);
+ CFRunLoopRemoveObserver(m_runLoop, m_commonModeRunLoopObserver, kCFRunLoopCommonModes);
+ CFRunLoopRemoveObserver(m_runLoop, m_defaultModeRunLoopObserver, kCFRunLoopDefaultMode);
}
void wxCFEventLoop::WakeUp()
{
- extern void wxMacWakeUp();
+ CFRunLoopWakeUp(m_runLoop);
+}
- wxMacWakeUp();
+#if wxUSE_BASE
+
+void wxMacWakeUp()
+{
+ wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+ if ( loop )
+ loop->WakeUp();
}
+#endif
+
bool wxCFEventLoop::YieldFor(long eventsToProcess)
{
#if wxUSE_THREADS
int wxCFEventLoop::DoProcessEvents()
{
- return DispatchTimeout( 1000 );
+ return DispatchTimeout( 0 );
}
bool wxCFEventLoop::Dispatch()
m_shouldExit = true;
DoStop();
}
+
+// TODO Move to thread_osx.cpp
+
+#if wxUSE_THREADS
+
+// ----------------------------------------------------------------------------
+// GUI Serialization copied from MSW implementation
+// ----------------------------------------------------------------------------
+
+// if it's false, some secondary thread is holding the GUI lock
+static bool gs_bGuiOwnedByMainThread = true;
+
+// critical section which controls access to all GUI functions: any secondary
+// thread (i.e. except the main one) must enter this crit section before doing
+// any GUI calls
+static wxCriticalSection *gs_critsectGui = NULL;
+
+// critical section which protects gs_nWaitingForGui variable
+static wxCriticalSection *gs_critsectWaitingForGui = NULL;
+
+// number of threads waiting for GUI in wxMutexGuiEnter()
+static size_t gs_nWaitingForGui = 0;
+
+void wxOSXThreadModuleOnInit()
+{
+ gs_critsectWaitingForGui = new wxCriticalSection();
+ gs_critsectGui = new wxCriticalSection();
+ gs_critsectGui->Enter();
+}
+
+
+void wxOSXThreadModuleOnExit()
+{
+ if ( gs_critsectGui )
+ {
+ if ( !wxGuiOwnedByMainThread() )
+ {
+ gs_critsectGui->Enter();
+ gs_bGuiOwnedByMainThread = true;
+ }
+
+ gs_critsectGui->Leave();
+ wxDELETE(gs_critsectGui);
+ }
+
+ wxDELETE(gs_critsectWaitingForGui);
+}
+
+
+// wake up the main thread
+void WXDLLIMPEXP_BASE wxWakeUpMainThread()
+{
+ wxMacWakeUp();
+}
+
+void wxMutexGuiEnterImpl()
+{
+ // this would dead lock everything...
+ wxASSERT_MSG( !wxThread::IsMain(),
+ wxT("main thread doesn't want to block in wxMutexGuiEnter()!") );
+
+ // the order in which we enter the critical sections here is crucial!!
+
+ // set the flag telling to the main thread that we want to do some GUI
+ {
+ wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
+
+ gs_nWaitingForGui++;
+ }
+
+ wxWakeUpMainThread();
+
+ // now we may block here because the main thread will soon let us in
+ // (during the next iteration of OnIdle())
+ gs_critsectGui->Enter();
+}
+
+void wxMutexGuiLeaveImpl()
+{
+ wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
+
+ if ( wxThread::IsMain() )
+ {
+ gs_bGuiOwnedByMainThread = false;
+ }
+ else
+ {
+ // decrement the number of threads waiting for GUI access now
+ wxASSERT_MSG( gs_nWaitingForGui > 0,
+ wxT("calling wxMutexGuiLeave() without entering it first?") );
+
+ gs_nWaitingForGui--;
+
+ wxWakeUpMainThread();
+ }
+
+ gs_critsectGui->Leave();
+}
+
+void WXDLLIMPEXP_BASE wxMutexGuiLeaveOrEnter()
+{
+ wxASSERT_MSG( wxThread::IsMain(),
+ wxT("only main thread may call wxMutexGuiLeaveOrEnter()!") );
+
+ if ( !gs_critsectWaitingForGui )
+ return;
+
+ wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
+
+ if ( gs_nWaitingForGui == 0 )
+ {
+ // no threads are waiting for GUI - so we may acquire the lock without
+ // any danger (but only if we don't already have it)
+ if ( !wxGuiOwnedByMainThread() )
+ {
+ gs_critsectGui->Enter();
+
+ gs_bGuiOwnedByMainThread = true;
+ }
+ //else: already have it, nothing to do
+ }
+ else
+ {
+ // some threads are waiting, release the GUI lock if we have it
+ if ( wxGuiOwnedByMainThread() )
+ wxMutexGuiLeave();
+ //else: some other worker thread is doing GUI
+ }
+}
+
+bool WXDLLIMPEXP_BASE wxGuiOwnedByMainThread()
+{
+ return gs_bGuiOwnedByMainThread;
+}
+
+#endif
projects / wxWidgets.git / blobdiff