lite-xl/src/api/dirmonitor/kqueue.c

53 lines
1.2 KiB
C

#include <sys/event.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
struct dirmonitor {
int fd;
};
struct dirmonitor* init_dirmonitor_kqueue() {
struct dirmonitor* monitor = calloc(sizeof(struct dirmonitor), 1);
monitor->fd = kqueue();
return monitor;
}
void deinit_dirmonitor_kqueue(struct dirmonitor* monitor) {
close(monitor->fd);
free(monitor);
}
int check_dirmonitor_kqueue(struct dirmonitor* monitor, int (*change_callback)(int, const char*, void*), void* data) {
struct kevent event;
while (1) {
struct timespec tm = {0};
int nev = kevent(monitor->fd, NULL, 0, &event, 1, &tm);
if (nev == -1) {
return errno;
}
if (nev <= 0) {
return 0;
}
change_callback(event.ident, NULL, data);
}
}
int add_dirmonitor_kqueue(struct dirmonitor* monitor, const char* path) {
int fd = open(path, O_RDONLY);
struct kevent change;
EV_SET(&change, fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_DELETE | NOTE_EXTEND | NOTE_WRITE | NOTE_ATTRIB | NOTE_LINK | NOTE_RENAME, 0, (void*)path);
kevent(monitor->fd, &change, 1, NULL, 0, NULL);
return fd;
}
void remove_dirmonitor_kqueue(struct dirmonitor* monitor, int fd) {
close(fd);
}