97 lines
1.9 KiB
Objective-C
97 lines
1.9 KiB
Objective-C
//
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// PathWatcher.m
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// Cog
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//
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// Created by Vincent Spader on 2/17/08.
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// Copyright 2008 __MyCompanyName__. All rights reserved.
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//
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#import "PathWatcher.h"
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static void myFSEventCallback(
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ConstFSEventStreamRef streamRef,
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void *clientCallBackInfo,
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size_t numEvents,
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void *eventPaths,
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const FSEventStreamEventFlags eventFlags[],
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const FSEventStreamEventId eventIds[])
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{
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int i;
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char **paths = eventPaths;
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PathWatcher *pathWatcher = (PathWatcher *)clientCallBackInfo;
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printf("Callback called\n");
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for (i=0; i<numEvents; i++) {
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NSString *pathString = [[NSString alloc] initWithUTF8String:paths[i]];
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[[pathWatcher delegate] pathDidChange:pathString];
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[pathString release];
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}
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}
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@implementation PathWatcher
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- (void)cleanUp
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{
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if (stream) {
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FSEventStreamStop(stream);
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FSEventStreamInvalidate(stream);
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FSEventStreamRelease(stream);
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stream = NULL;
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}
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if (context) {
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free(context);
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context = NULL;
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}
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}
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- (void)setPath:(NSString *)path
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{
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[self cleanUp];
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//Create FSEvent stream
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CFArrayRef pathsToWatch = CFArrayCreate(NULL, (const void **)&path, 1, NULL);
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context = (FSEventStreamContext*)malloc(sizeof(FSEventStreamContext));
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context->version = 0;
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context->info = (void *)self;
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context->retain = NULL;
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context->release = NULL;
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// Create the stream, passing in a callback
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stream = FSEventStreamCreate(NULL,
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&myFSEventCallback,
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context,
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pathsToWatch,
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kFSEventStreamEventIdSinceNow, // Or a previous event ID
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1.0, //latency in seconds
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kFSEventStreamCreateFlagNone // Watch this and all its subdirectories
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);
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CFRelease(pathsToWatch);
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FSEventStreamScheduleWithRunLoop(stream, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
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FSEventStreamStart(stream);
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}
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- (void)setDelegate:(id)d
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{
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[d retain];
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[delegate release];
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delegate = d;
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}
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- (id)delegate
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{
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return delegate;
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}
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- (void) dealloc
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{
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[self cleanUp];
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[super dealloc];
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}
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@end
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