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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# if defined(__APPLE__) || \
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defined(__DragonFly__) || \
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defined(__FreeBSD__) || \
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defined(__OpenBSD__) || \
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# define HAVE_KQUEUE 1
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static uv_fs_event_t fs_event;
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static uv_timer_t timer;
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static int timer_cb_called = 0;
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static int close_cb_called = 0;
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static int fs_event_cb_called = 0;
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static int timer_cb_touch_called = 0;
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static void create_dir(uv_loop_t* loop, const char* name) {
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r = uv_fs_mkdir(loop, &req, name, 0755, NULL);
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ASSERT(r == 0 || uv_last_error(loop).code == UV_EEXIST);
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uv_fs_req_cleanup(&req);
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static void create_file(uv_loop_t* loop, const char* name) {
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r = uv_fs_open(loop, &req, name, O_WRONLY | O_CREAT,
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S_IWRITE | S_IREAD, NULL);
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uv_fs_req_cleanup(&req);
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r = uv_fs_close(loop, &req, file, NULL);
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uv_fs_req_cleanup(&req);
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static void touch_file(uv_loop_t* loop, const char* name) {
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r = uv_fs_open(loop, &req, name, O_RDWR, 0, NULL);
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uv_fs_req_cleanup(&req);
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r = uv_fs_write(loop, &req, file, "foo", 4, -1, NULL);
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uv_fs_req_cleanup(&req);
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r = uv_fs_close(loop, &req, file, NULL);
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uv_fs_req_cleanup(&req);
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static void close_cb(uv_handle_t* handle) {
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ASSERT(handle != NULL);
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static void fail_cb(uv_fs_event_t* handle,
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ASSERT(0 && "fail_cb called");
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static void fs_event_cb_dir(uv_fs_event_t* handle, const char* filename,
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int events, int status) {
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++fs_event_cb_called;
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ASSERT(handle == &fs_event);
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ASSERT(events == UV_RENAME);
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ASSERT(filename == NULL || strcmp(filename, "file1") == 0);
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uv_close((uv_handle_t*)handle, close_cb);
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static void fs_event_cb_file(uv_fs_event_t* handle, const char* filename,
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int events, int status) {
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++fs_event_cb_called;
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ASSERT(handle == &fs_event);
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ASSERT(events == UV_CHANGE);
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ASSERT(filename == NULL || strcmp(filename, "file2") == 0);
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uv_close((uv_handle_t*)handle, close_cb);
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static void timer_cb_close_handle(uv_timer_t* timer, int status) {
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ASSERT(timer != NULL);
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handle = timer->data;
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uv_close((uv_handle_t*)timer, NULL);
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uv_close((uv_handle_t*)handle, close_cb);
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static void fs_event_cb_file_current_dir(uv_fs_event_t* handle,
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const char* filename, int events, int status) {
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ASSERT(fs_event_cb_called == 0);
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++fs_event_cb_called;
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ASSERT(handle == &fs_event);
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ASSERT(events == UV_CHANGE);
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ASSERT(filename == NULL || strcmp(filename, "watch_file") == 0);
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/* Regression test for SunOS: touch should generate just one event. */
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static uv_timer_t timer;
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uv_timer_init(handle->loop, &timer);
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uv_timer_start(&timer, timer_cb_close_handle, 250, 0);
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static void timer_cb_dir(uv_timer_t* handle, int status) {
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create_file(handle->loop, "watch_dir/file1");
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uv_close((uv_handle_t*)handle, close_cb);
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static void timer_cb_file(uv_timer_t* handle, int status) {
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if (timer_cb_called == 1) {
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touch_file(handle->loop, "watch_dir/file1");
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touch_file(handle->loop, "watch_dir/file2");
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uv_close((uv_handle_t*)handle, close_cb);
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static void timer_cb_touch(uv_timer_t* timer, int status) {
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uv_close((uv_handle_t*)timer, NULL);
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touch_file(timer->loop, "watch_file");
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timer_cb_touch_called++;
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static void timer_cb_watch_twice(uv_timer_t* handle, int status) {
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uv_fs_event_t* handles = handle->data;
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uv_close((uv_handle_t*) (handles + 0), NULL);
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uv_close((uv_handle_t*) (handles + 1), NULL);
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uv_close((uv_handle_t*) handle, NULL);
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TEST_IMPL(fs_event_watch_dir) {
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uv_loop_t* loop = uv_default_loop();
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remove("watch_dir/file2");
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remove("watch_dir/file1");
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remove("watch_dir/");
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create_dir(loop, "watch_dir");
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r = uv_fs_event_init(loop, &fs_event, "watch_dir", fs_event_cb_dir, 0);
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r = uv_timer_init(loop, &timer);
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r = uv_timer_start(&timer, timer_cb_dir, 100, 0);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(fs_event_cb_called == 1);
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ASSERT(timer_cb_called == 1);
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ASSERT(close_cb_called == 2);
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remove("watch_dir/file2");
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remove("watch_dir/file1");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_watch_file) {
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uv_loop_t* loop = uv_default_loop();
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remove("watch_dir/file2");
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remove("watch_dir/file1");
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remove("watch_dir/");
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create_dir(loop, "watch_dir");
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create_file(loop, "watch_dir/file1");
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create_file(loop, "watch_dir/file2");
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r = uv_fs_event_init(loop, &fs_event, "watch_dir/file2", fs_event_cb_file, 0);
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r = uv_timer_init(loop, &timer);
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r = uv_timer_start(&timer, timer_cb_file, 100, 100);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(fs_event_cb_called == 1);
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ASSERT(timer_cb_called == 2);
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ASSERT(close_cb_called == 2);
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remove("watch_dir/file2");
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remove("watch_dir/file1");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_watch_file_twice) {
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const char path[] = "test/fixtures/empty_file";
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uv_fs_event_t watchers[2];
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loop = uv_default_loop();
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timer.data = watchers;
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ASSERT(0 == uv_fs_event_init(loop, watchers + 0, path, fail_cb, 0));
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ASSERT(0 == uv_fs_event_init(loop, watchers + 1, path, fail_cb, 0));
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ASSERT(0 == uv_timer_init(loop, &timer));
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ASSERT(0 == uv_timer_start(&timer, timer_cb_watch_twice, 10, 0));
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ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_watch_file_current_dir) {
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loop = uv_default_loop();
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remove("watch_file");
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create_file(loop, "watch_file");
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r = uv_fs_event_init(loop, &fs_event, "watch_file",
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fs_event_cb_file_current_dir, 0);
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r = uv_timer_init(loop, &timer);
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r = uv_timer_start(&timer, timer_cb_touch, 1, 0);
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ASSERT(timer_cb_touch_called == 0);
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ASSERT(fs_event_cb_called == 0);
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ASSERT(close_cb_called == 0);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(timer_cb_touch_called == 1);
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ASSERT(fs_event_cb_called == 1);
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ASSERT(close_cb_called == 1);
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remove("watch_file");
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_no_callback_after_close) {
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uv_loop_t* loop = uv_default_loop();
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remove("watch_dir/file1");
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remove("watch_dir/");
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create_dir(loop, "watch_dir");
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create_file(loop, "watch_dir/file1");
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r = uv_fs_event_init(loop,
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uv_close((uv_handle_t*)&fs_event, close_cb);
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touch_file(loop, "watch_dir/file1");
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(fs_event_cb_called == 0);
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ASSERT(close_cb_called == 1);
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remove("watch_dir/file1");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_no_callback_on_close) {
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uv_loop_t* loop = uv_default_loop();
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remove("watch_dir/file1");
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remove("watch_dir/");
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create_dir(loop, "watch_dir");
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create_file(loop, "watch_dir/file1");
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r = uv_fs_event_init(loop,
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uv_close((uv_handle_t*)&fs_event, close_cb);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(fs_event_cb_called == 0);
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ASSERT(close_cb_called == 1);
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remove("watch_dir/file1");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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static void fs_event_fail(uv_fs_event_t* handle, const char* filename,
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int events, int status) {
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ASSERT(0 && "should never be called");
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static void timer_cb(uv_timer_t* handle, int status) {
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r = uv_fs_event_init(handle->loop, &fs_event, ".", fs_event_fail, 0);
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uv_close((uv_handle_t*)&fs_event, close_cb);
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uv_close((uv_handle_t*)handle, close_cb);
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TEST_IMPL(fs_event_immediate_close) {
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loop = uv_default_loop();
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r = uv_timer_init(loop, &timer);
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r = uv_timer_start(&timer, timer_cb, 1, 0);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(close_cb_called == 2);
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MAKE_VALGRIND_HAPPY();
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TEST_IMPL(fs_event_close_with_pending_event) {
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loop = uv_default_loop();
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create_dir(loop, "watch_dir");
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create_file(loop, "watch_dir/file");
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r = uv_fs_event_init(loop, &fs_event, "watch_dir", fs_event_fail, 0);
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/* Generate an fs event. */
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touch_file(loop, "watch_dir/file");
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uv_close((uv_handle_t*)&fs_event, close_cb);
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(close_cb_called == 1);
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remove("watch_dir/file");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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#if defined(HAVE_KQUEUE)
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/* kqueue doesn't register fs events if you don't have an active watcher.
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* The file descriptor needs to be part of the kqueue set of interest and
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* that's not the case until we actually enter the event loop.
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TEST_IMPL(fs_event_close_in_callback) {
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fprintf(stderr, "Skipping test, doesn't work with kqueue.\n");
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#else /* !HAVE_KQUEUE */
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static void fs_event_cb_close(uv_fs_event_t* handle, const char* filename,
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int events, int status) {
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ASSERT(fs_event_cb_called < 3);
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++fs_event_cb_called;
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if (fs_event_cb_called == 3) {
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uv_close((uv_handle_t*) handle, close_cb);
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TEST_IMPL(fs_event_close_in_callback) {
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loop = uv_default_loop();
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create_dir(loop, "watch_dir");
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create_file(loop, "watch_dir/file1");
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create_file(loop, "watch_dir/file2");
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create_file(loop, "watch_dir/file3");
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create_file(loop, "watch_dir/file4");
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create_file(loop, "watch_dir/file5");
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r = uv_fs_event_init(loop, &fs_event, "watch_dir", fs_event_cb_close, 0);
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/* Generate a couple of fs events. */
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touch_file(loop, "watch_dir/file1");
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touch_file(loop, "watch_dir/file2");
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touch_file(loop, "watch_dir/file3");
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touch_file(loop, "watch_dir/file4");
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touch_file(loop, "watch_dir/file5");
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(close_cb_called == 1);
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ASSERT(fs_event_cb_called == 3);
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remove("watch_dir/file1");
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remove("watch_dir/file2");
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remove("watch_dir/file3");
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remove("watch_dir/file4");
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remove("watch_dir/file5");
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remove("watch_dir/");
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MAKE_VALGRIND_HAPPY();
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#endif /* HAVE_KQUEUE */