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