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 wd;
loop->counters.fs_event_init++;
/* We don't support any flags yet. */
assert(!flags);
if (init_inotify(loop)) return -1;
events = UV__IN_ATTRIB
| UV__IN_CREATE
| UV__IN_MODIFY
| UV__IN_DELETE
| UV__IN_DELETE_SELF
| UV__IN_MOVED_FROM
| UV__IN_MOVED_TO;
wd = uv__inotify_add_watch(loop->inotify_fd, filename, events);
if (wd == -1) return uv__set_sys_error(loop, errno);
uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
handle->filename = strdup(filename);
handle->cb = cb;
handle->fd = wd;
add_watcher(handle);
return 0;
}
int uv_fs_event_start(uv_fs_event_t* handle,
uv_fs_event_cb cb,
const char* path,
unsigned int flags) {
struct watcher_list* w;
int events;
int err;
int wd;
if (uv__is_active(handle))
return -EINVAL;
err = init_inotify(handle->loop);
if (err)
return err;
events = UV__IN_ATTRIB
| UV__IN_CREATE
| UV__IN_MODIFY
| UV__IN_DELETE
| UV__IN_DELETE_SELF
| UV__IN_MOVE_SELF
| UV__IN_MOVED_FROM
| UV__IN_MOVED_TO;
wd = uv__inotify_add_watch(handle->loop->inotify_fd, path, events);
if (wd == -1)
return -errno;
w = find_watcher(handle->loop, wd);
if (w)
goto no_insert;
w = uv__malloc(sizeof(*w) + strlen(path) + 1);
if (w == NULL)
return -ENOMEM;
w->wd = wd;
w->path = strcpy((char*)(w + 1), path);
QUEUE_INIT(&w->watchers);
w->iterating = 0;
RB_INSERT(watcher_root, CAST(&handle->loop->inotify_watchers), w);
no_insert:
uv__handle_start(handle);
QUEUE_INSERT_TAIL(&w->watchers, &handle->watchers);
handle->path = w->path;
handle->cb = cb;
handle->wd = wd;
return 0;
}
