问当我修改我的文件时发送kevent NOTE_DELETE

EN

void myfct(char * path)
{ 
int kq;
int event_fd;
struct kevent events_to_monitor[NUM_EVENT_FDS];
struct kevent event_data[NUM_EVENT_SLOTS];
void *user_data;
struct timespec timeout;
unsigned int vnode_events;

kq = kqueue();

event_fd = open(path, O_EVTONLY);
user_data = path;
timeout.tv_sec = 0;        
timeout.tv_nsec = 500000000;    

vnode_events = NOTE_DELETE |  NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB | NOTE_LINK | NOTE_RENAME | NOTE_REVOKE;
EV_SET( &events_to_monitor[0], event_fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, vnode_events, 0, user_data);

    while (42) 
    {
        int event_count = kevent(kq, events_to_monitor, NUM_EVENT_SLOTS, event_data, num_files, &timeout);

        if (event_count) 
        {
            // Display the right event in event_data[0].fflags
        }
        else 
        {
            NSLog(@"No event.\n");
        }
    }
}