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/*
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** © 2014 by Philipp Dunkel <pip@pipobscure.com>
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** Licensed under MIT License.
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*/
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// constants from https://developer.apple.com/library/mac/documentation/Darwin/Reference/FSEvents_Ref/index.html#//apple_ref/doc/constant_group/FSEventStreamCreateFlags
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#ifndef kFSEventStreamCreateFlagNone
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#define kFSEventStreamCreateFlagNone 0x00000000
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#endif
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#ifndef kFSEventStreamCreateFlagUseCFTypes
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#define kFSEventStreamCreateFlagUseCFTypes 0x00000001
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#endif
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#ifndef kFSEventStreamCreateFlagNoDefer
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#define kFSEventStreamCreateFlagNoDefer 0x00000002
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#endif
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#ifndef kFSEventStreamCreateFlagWatchRoot
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#define kFSEventStreamCreateFlagWatchRoot 0x00000004
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#endif
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#ifndef kFSEventStreamCreateFlagIgnoreSelf
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#define kFSEventStreamCreateFlagIgnoreSelf 0x00000008
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#endif
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#ifndef kFSEventStreamCreateFlagFileEvents
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#define kFSEventStreamCreateFlagFileEvents 0x00000010
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#endif
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void FSEvents::threadStart() {
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if (threadloop) return;
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if (uv_thread_create(&thread, &FSEvents::threadRun, this)) abort();
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}
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void HandleStreamEvents(ConstFSEventStreamRef stream, void *ctx, size_t numEvents, void *eventPaths, const FSEventStreamEventFlags eventFlags[], const FSEventStreamEventId eventIds[]) {
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FSEvents * fse = (FSEvents *)ctx;
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size_t idx;
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uv_mutex_lock(&fse->mutex);
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for (idx=0; idx < numEvents; idx++) {
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fse_event *event = new fse_event(
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(CFStringRef)CFArrayGetValueAtIndex((CFArrayRef)eventPaths, idx),
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eventFlags[idx],
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eventIds[idx]
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);
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fse->events.push_back(event);
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}
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fse->asyncTrigger();
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uv_mutex_unlock(&fse->mutex);
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}
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void FSEvents::threadRun(void *ctx) {
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FSEvents *fse = (FSEvents*)ctx;
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FSEventStreamContext context = { 0, ctx, NULL, NULL, NULL };
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fse->threadloop = CFRunLoopGetCurrent();
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FSEventStreamRef stream = FSEventStreamCreate(NULL, &HandleStreamEvents, &context, fse->paths, kFSEventStreamEventIdSinceNow, (CFAbsoluteTime) 0.1, kFSEventStreamCreateFlagNone | kFSEventStreamCreateFlagWatchRoot | kFSEventStreamCreateFlagFileEvents | kFSEventStreamCreateFlagUseCFTypes);
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FSEventStreamScheduleWithRunLoop(stream, fse->threadloop, kCFRunLoopDefaultMode);
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FSEventStreamStart(stream);
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CFRunLoopRun();
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FSEventStreamStop(stream);
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FSEventStreamUnscheduleFromRunLoop(stream, fse->threadloop, kCFRunLoopDefaultMode);
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FSEventStreamInvalidate(stream);
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FSEventStreamRelease(stream);
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fse->threadloop = NULL;
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}
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void FSEvents::threadStop() {
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if (!threadloop) return;
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CFRunLoopStop(threadloop);
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if (uv_thread_join(&thread)) abort();
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}
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