NSArray*paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
if(paths.count==0){return;}
NSString*ksnowDir=[[pathsobjectAtIndex:0]stringByAppendingPathComponent:@"ksnow"];NSLog(@"ksnowdir = %@",ksnowDir);
NSURL*directoryURL=[NSURLURLWithString:ksnowDir];intconstfd=open([[directoryURLpath]fileSystemRepresentation],O_EVTONLY);
if(fd<0){NSLog(@"Unable to open the path = %@",[directoryURLpath]);return;}
dispatch_source_tsource=dispatch_source_create(DISPATCH_SOURCE_TYPE_VNODE,fd,DISPATCH_VNODE_WRITE|DISPATCH_VNODE_RENAME,DISPATCH_TARGET_QUEUE_DEFAULT);
dispatch_source_set_event_handler(source,^(){
unsignedlongconsttype=dispatch_source_get_data(source);
switch(type){
caseDISPATCH_VNODE_WRITE:{
NSLog(@"目录内容改变!!!");break;
}
caseDISPATCH_VNODE_RENAME:{
NSLog(@"目录被重命名!!!");break;
}
default:break;
}});
dispatch_source_set_cancel_handler(source,^(){close(fd);
});
self.source=source;
dispatch_resume(self.source);
