static void __CFWindowsMessageQueuePerform(void *info) {
CFWindowsMessageQueueRef wmq = (CFWindowsMessageQueueRef)info;
MSG msg;
__CFWindowsMessageQueueLock(wmq);
if (!__CFWindowsMessageQueueIsValid(wmq)) {
__CFWindowsMessageQueueUnlock(wmq);
return;
}
__CFWindowsMessageQueueUnlock(wmq);
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE | PM_NOYIELD)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
static void __CFWindowsMessageQueueSchedule(void *info, CFRunLoopRef rl, CFStringRef mode) {
CFWindowsMessageQueueRef wmq = (CFWindowsMessageQueueRef)info;
__CFWindowsMessageQueueLock(wmq);
if (__CFWindowsMessageQueueIsValid(wmq)) {
uint32_t mask;
CFArrayAppendValue(wmq->_runLoops, rl);
mask = __CFRunLoopGetWindowsMessageQueueMask(rl, mode);
mask |= wmq->_mask;
__CFRunLoopSetWindowsMessageQueueMask(rl, mask, mode);
}
__CFWindowsMessageQueueUnlock(wmq);
}
static void __CFWindowsMessageQueueCancel(void *info, CFRunLoopRef rl, CFStringRef mode) {
CFWindowsMessageQueueRef wmq = info;
__CFWindowsMessageQueueLock(wmq);
#warning CF: should fix up run loop modes mask here, if not done
#warning CF: previously by the invalidation, where it should also
#warning CF: be done
if (NULL != wmq->_runLoops) {
SInt32 idx = CFArrayGetFirstIndexOfValue(wmq->_runLoops, CFRangeMake(0, CFArrayGetCount(wmq->_runLoops)), rl);
if (0 <= idx) CFArrayRemoveValueAtIndex(wmq->_runLoops, idx);
}
__CFWindowsMessageQueueUnlock(wmq);
}
CFStringRef __CFWindowsMessageQueueCopyDescription(CFTypeRef cf) {
#warning CF: this and many other CopyDescription functions are probably
#warning CF: broken, in that some of these fields being printed out can
#warning CF: be NULL, when the object is in the invalid state
CFWindowsMessageQueueRef wmq = (CFWindowsMessageQueueRef)cf;
CFMutableStringRef result;
result = CFStringCreateMutable(CFGetAllocator(wmq), 0);
__CFWindowsMessageQueueLock(wmq);
#warning CF: here, and probably everywhere with a per-instance lock,
#warning CF: the locked state will always be true because we lock,
#warning CF: and you cannot call description if the object is locked;
#warning CF: probably should not lock description, and call it unsafe
CFStringAppendFormat(result, NULL, CFSTR("<CFWindowsMessageQueue 0x%x [0x%x]>{locked = %s, valid = %s, mask = 0x%x,\n run loops = %@}"), (UInt32)cf, (UInt32)CFGetAllocator(wmq), (wmq->_lock ? "Yes" : "No"), (__CFWindowsMessageQueueIsValid(wmq) ? "Yes" : "No"), (UInt32)wmq->_mask, wmq->_runLoops);
__CFWindowsMessageQueueUnlock(wmq);
return result;
}
static CFStringRef __CFWindowsMessageQueueCopyDescription(CFTypeRef cf) {
/* Some commentary, possibly as out of date as much of the rest of the file was
#warning CF: this and many other CopyDescription functions are probably
#warning CF: broken, in that some of these fields being printed out can
#warning CF: be NULL, when the object is in the invalid state
*/
CFWindowsMessageQueueRef wmq = (CFWindowsMessageQueueRef)cf;
CFMutableStringRef result;
result = CFStringCreateMutable(CFGetAllocator(wmq), 0);
__CFWindowsMessageQueueLock(wmq);
/* More commentary, which we don't really need to see with every build
#warning CF: here, and probably everywhere with a per-instance lock,
#warning CF: the locked state will always be true because we lock,
#warning CF: and you cannot call description if the object is locked;
#warning CF: probably should not lock description, and call it unsafe
*/
CFStringAppendFormat(result, NULL, CFSTR("<CFWindowsMessageQueue %p [%p]>{locked = %s, valid = %s, mask = 0x%x,\n run loops = %@}"), cf, CFGetAllocator(wmq), (wmq->_lock/*.LockCount*/ ? "Yes" : "No"), (__CFWindowsMessageQueueIsValid(wmq) ? "Yes" : "No"), (UInt32)wmq->_mask, wmq->_runLoops);
__CFWindowsMessageQueueUnlock(wmq);
return result;
}
void CFWindowsMessageQueueInvalidate(CFWindowsMessageQueueRef wmq) {
__CFGenericValidateType(wmq, __kCFWindowsMessageQueueTypeID);
CFRetain(wmq);
__CFWindowsMessageQueueLock(wmq);
if (__CFWindowsMessageQueueIsValid(wmq)) {
SInt32 idx;
__CFWindowsMessageQueueUnsetValid(wmq);
for (idx = CFArrayGetCount(wmq->_runLoops); idx--;) {
CFRunLoopWakeUp((CFRunLoopRef)CFArrayGetValueAtIndex(wmq->_runLoops, idx));
}
CFRelease(wmq->_runLoops);
wmq->_runLoops = NULL;
if (NULL != wmq->_source) {
CFRunLoopSourceInvalidate(wmq->_source);
CFRelease(wmq->_source);
wmq->_source = NULL;
}
}
__CFWindowsMessageQueueUnlock(wmq);
CFRelease(wmq);
}
CFRunLoopSourceRef CFWindowsMessageQueueCreateRunLoopSource(CFAllocatorRef allocator, CFWindowsMessageQueueRef wmq, CFIndex order) {
CFRunLoopSourceRef result = NULL;
__CFWindowsMessageQueueLock(wmq);
if (NULL == wmq->_source) {
CFRunLoopSourceContext context;
context.version = 0;
context.info = (void *)wmq;
context.retain = CFRetain;
context.release = CFRelease;
context.copyDescription = __CFWindowsMessageQueueCopyDescription;
context.equal = __CFWindowsMessageQueueEqual;
context.hash = __CFWindowsMessageQueueHash;
context.schedule = __CFWindowsMessageQueueSchedule;
context.cancel = __CFWindowsMessageQueueCancel;
context.perform = __CFWindowsMessageQueuePerform;
wmq->_source = CFRunLoopSourceCreate(allocator, order, &context);
}
CFRetain(wmq->_source); /* This retain is for the receiver */
result = wmq->_source;
__CFWindowsMessageQueueUnlock(wmq);
return result;
}
