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 | int CFRunLoopRunSpecific(runloop, modeName, seconds, stopAfterHandle) {
 
 
 CFRunLoopModeRef currentMode = __CFRunLoopFindMode(runloop, modeName, false);
 
 if (__CFRunLoopModeIsEmpty(currentMode)) return;
 
 
 __CFRunLoopDoObservers(runloop, currentMode, kCFRunLoopEntry);
 
 
 __CFRunLoopRun(runloop, currentMode, seconds, returnAfterSourceHandled) {
 
 Boolean sourceHandledThisLoop = NO;
 int retVal = 0;
 do {
 
 
 __CFRunLoopDoObservers(runloop, currentMode, kCFRunLoopBeforeTimers);
 
 __CFRunLoopDoObservers(runloop, currentMode, kCFRunLoopBeforeSources);
 
 __CFRunLoopDoBlocks(runloop, currentMode);
 
 
 sourceHandledThisLoop = __CFRunLoopDoSources0(runloop, currentMode, stopAfterHandle);
 
 __CFRunLoopDoBlocks(runloop, currentMode);
 
 
 if (__Source0DidDispatchPortLastTime) {
 Boolean hasMsg = __CFRunLoopServiceMachPort(dispatchPort, &msg)
 if (hasMsg) goto handle_msg;
 }
 
 
 if (!sourceHandledThisLoop) {
 __CFRunLoopDoObservers(runloop, currentMode, kCFRunLoopBeforeWaiting);
 }
 
 
 
 
 
 
 mach_msg(msg, MACH_RCV_MSG, port);
 
 
 __CFRunLoopDoObservers(runloop, currentMode, kCFRunLoopAfterWaiting);
 
 
 handle_msg:
 
 
 if (msg_is_timer) {
 __CFRunLoopDoTimers(runloop, currentMode, mach_absolute_time())
 }
 
 
 else if (msg_is_dispatch) {
 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__(msg);
 }
 
 
 else {
 CFRunLoopSourceRef source1 = __CFRunLoopModeFindSourceForMachPort(runloop, currentMode, livePort);
 sourceHandledThisLoop = __CFRunLoopDoSource1(runloop, currentMode, source1, msg);
 if (sourceHandledThisLoop) {
 mach_msg(reply, MACH_SEND_MSG, reply);
 }
 }
 
 
 __CFRunLoopDoBlocks(runloop, currentMode);
 
 
 if (sourceHandledThisLoop && stopAfterHandle) {
 
 retVal = kCFRunLoopRunHandledSource;
 } else if (timeout) {
 
 retVal = kCFRunLoopRunTimedOut;
 } else if (__CFRunLoopIsStopped(runloop)) {
 
 retVal = kCFRunLoopRunStopped;
 } else if (__CFRunLoopModeIsEmpty(runloop, currentMode)) {
 
 retVal = kCFRunLoopRunFinished;
 }
 
 
 } while (retVal == 0);
 }
 
 
 __CFRunLoopDoObservers(rl, currentMode, kCFRunLoopExit);
 }
 
 |