int uv_fs_event_init(uv_loop_t* loop,
uv_fs_event_t* handle,
const char* filename,
uv_fs_event_cb cb,
int flags) {
int events;
int fd;
loop->counters.fs_event_init++;
/* We don't support any flags yet. */
assert(!flags);
/*
* TODO share a single inotify fd across the event loop?
* We'll run into fs.inotify.max_user_instances if we
* keep creating new inotify fds.
*/
if ((fd = new_inotify_fd()) == -1) {
uv__set_sys_error(loop, errno);
return -1;
}
events = IN_ATTRIB
| IN_CREATE
| IN_MODIFY
| IN_DELETE
| IN_DELETE_SELF
| IN_MOVED_FROM
| IN_MOVED_TO;
if (inotify_add_watch(fd, filename, events) == -1) {
uv__set_sys_error(loop, errno);
uv__close(fd);
return -1;
}
uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
handle->filename = strdup(filename); /* this should go! */
handle->cb = cb;
handle->fd = fd;
ev_io_init(&handle->read_watcher, uv__inotify_read, fd, EV_READ);
ev_io_start(loop->ev, &handle->read_watcher);
ev_unref(loop->ev);
return 0;
}
static int init_inotify(uv_loop_t* loop) {
int err;
if (loop->inotify_fd != -1)
return 0;
err = new_inotify_fd();
if (err < 0)
return err;
loop->inotify_fd = err;
uv__io_init(&loop->inotify_read_watcher, uv__inotify_read, loop->inotify_fd);
uv__io_start(loop, &loop->inotify_read_watcher, UV__POLLIN);
return 0;
}
static int init_inotify(uv_loop_t* loop) {
if (loop->inotify_fd != -1)
return 0;
loop->inotify_fd = new_inotify_fd();
if (loop->inotify_fd == -1) {
uv__set_sys_error(loop, errno);
return -1;
}
ev_io_init(&loop->inotify_read_watcher,
uv__inotify_read,
loop->inotify_fd,
EV_READ);
ev_io_start(loop->ev, &loop->inotify_read_watcher);
return 0;
}