ext/libuv/test/test-fs-event.c in libuv-0.11.4 vs ext/libuv/test/test-fs-event.c in libuv-0.11.5
- old
+ new
@@ -1,730 +1,730 @@
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-#include "task.h"
-
-#include <string.h>
-#include <fcntl.h>
-
-#ifndef HAVE_KQUEUE
-# if defined(__APPLE__) || \
- defined(__DragonFly__) || \
- defined(__FreeBSD__) || \
- defined(__OpenBSD__) || \
- defined(__NetBSD__)
-# define HAVE_KQUEUE 1
-# endif
-#endif
-
-static uv_fs_event_t fs_event;
-static const char file_prefix[] = "fsevent-";
-static uv_timer_t timer;
-static int timer_cb_called;
-static int close_cb_called;
-static const int fs_event_file_count = 128;
-static int fs_event_created;
-static int fs_event_cb_called;
-#if defined(PATH_MAX)
-static char fs_event_filename[PATH_MAX];
-#else
-static char fs_event_filename[1024];
-#endif /* defined(PATH_MAX) */
-static int timer_cb_touch_called;
-
-static void fs_event_unlink_files(uv_timer_t* handle, int status);
-
-static void create_dir(uv_loop_t* loop, const char* name) {
- int r;
- uv_fs_t req;
- r = uv_fs_mkdir(loop, &req, name, 0755, NULL);
- ASSERT(r == 0 || r == UV_EEXIST);
- uv_fs_req_cleanup(&req);
-}
-
-static void create_file(uv_loop_t* loop, const char* name) {
- int r;
- uv_file file;
- uv_fs_t req;
-
- r = uv_fs_open(loop, &req, name, O_WRONLY | O_CREAT,
- S_IWUSR | S_IRUSR, NULL);
- ASSERT(r >= 0);
- file = r;
- uv_fs_req_cleanup(&req);
- r = uv_fs_close(loop, &req, file, NULL);
- ASSERT(r == 0);
- uv_fs_req_cleanup(&req);
-}
-
-static void touch_file(uv_loop_t* loop, const char* name) {
- int r;
- uv_file file;
- uv_fs_t req;
-
- r = uv_fs_open(loop, &req, name, O_RDWR, 0, NULL);
- ASSERT(r >= 0);
- file = r;
- uv_fs_req_cleanup(&req);
-
- r = uv_fs_write(loop, &req, file, "foo", 4, -1, NULL);
- ASSERT(r >= 0);
- uv_fs_req_cleanup(&req);
-
- r = uv_fs_close(loop, &req, file, NULL);
- ASSERT(r == 0);
- uv_fs_req_cleanup(&req);
-}
-
-static void close_cb(uv_handle_t* handle) {
- ASSERT(handle != NULL);
- close_cb_called++;
-}
-
-static void fail_cb(uv_fs_event_t* handle,
- const char* path,
- int events,
- int status) {
- ASSERT(0 && "fail_cb called");
-}
-
-static void fs_event_cb_dir(uv_fs_event_t* handle, const char* filename,
- int events, int status) {
- ++fs_event_cb_called;
- ASSERT(handle == &fs_event);
- ASSERT(status == 0);
- ASSERT(events == UV_RENAME);
- ASSERT(filename == NULL || strcmp(filename, "file1") == 0);
- ASSERT(0 == uv_fs_event_stop(handle));
- uv_close((uv_handle_t*)handle, close_cb);
-}
-
-static void fs_event_cb_dir_multi_file(uv_fs_event_t* handle,
- const char* filename,
- int events,
- int status) {
- fs_event_cb_called++;
- ASSERT(handle == &fs_event);
- ASSERT(status == 0);
- ASSERT(events == UV_RENAME);
- ASSERT(filename == NULL ||
- strncmp(filename, file_prefix, sizeof(file_prefix) - 1) == 0);
-
- /* Stop watching dir when received events about all files:
- * both create and close events */
- if (fs_event_cb_called == 2 * fs_event_file_count) {
- ASSERT(0 == uv_fs_event_stop(handle));
- uv_close((uv_handle_t*) handle, close_cb);
- }
-}
-
-static const char* fs_event_get_filename(int i) {
- snprintf(fs_event_filename,
- sizeof(fs_event_filename),
- "watch_dir/%s%d",
- file_prefix,
- i);
- return fs_event_filename;
-}
-
-static void fs_event_create_files(uv_timer_t* handle, int status) {
- int i;
-
- /* Already created all files */
- if (fs_event_created == fs_event_file_count) {
- uv_close((uv_handle_t*) &timer, close_cb);
- return;
- }
-
- /* Create all files */
- for (i = 0; i < 16; i++, fs_event_created++)
- create_file(handle->loop, fs_event_get_filename(i));
-
- /* And unlink them */
- ASSERT(0 == uv_timer_start(&timer, fs_event_unlink_files, 50, 0));
-}
-
-void fs_event_unlink_files(uv_timer_t* handle, int status) {
- int r;
- int i;
-
- /* NOTE: handle might be NULL if invoked not as timer callback */
-
- /* Unlink all files */
- for (i = 0; i < 16; i++) {
- r = remove(fs_event_get_filename(i));
- if (handle != NULL)
- ASSERT(r == 0);
- }
-
- /* And create them again */
- if (handle != NULL)
- ASSERT(0 == uv_timer_start(&timer, fs_event_create_files, 50, 0));
-}
-
-static void fs_event_cb_file(uv_fs_event_t* handle, const char* filename,
- int events, int status) {
- ++fs_event_cb_called;
- ASSERT(handle == &fs_event);
- ASSERT(status == 0);
- ASSERT(events == UV_CHANGE);
- ASSERT(filename == NULL || strcmp(filename, "file2") == 0);
- ASSERT(0 == uv_fs_event_stop(handle));
- uv_close((uv_handle_t*)handle, close_cb);
-}
-
-static void timer_cb_close_handle(uv_timer_t* timer, int status) {
- uv_handle_t* handle;
-
- ASSERT(timer != NULL);
- ASSERT(status == 0);
- handle = timer->data;
-
- uv_close((uv_handle_t*)timer, NULL);
- uv_close((uv_handle_t*)handle, close_cb);
-}
-
-static void fs_event_cb_file_current_dir(uv_fs_event_t* handle,
- const char* filename, int events, int status) {
- ASSERT(fs_event_cb_called == 0);
- ++fs_event_cb_called;
-
- ASSERT(handle == &fs_event);
- ASSERT(status == 0);
- ASSERT(events == UV_CHANGE);
- ASSERT(filename == NULL || strcmp(filename, "watch_file") == 0);
-
- /* Regression test for SunOS: touch should generate just one event. */
- {
- static uv_timer_t timer;
- uv_timer_init(handle->loop, &timer);
- timer.data = handle;
- uv_timer_start(&timer, timer_cb_close_handle, 250, 0);
- }
-}
-
-static void timer_cb_file(uv_timer_t* handle, int status) {
- ++timer_cb_called;
-
- if (timer_cb_called == 1) {
- touch_file(handle->loop, "watch_dir/file1");
- } else {
- touch_file(handle->loop, "watch_dir/file2");
- uv_close((uv_handle_t*)handle, close_cb);
- }
-}
-
-static void timer_cb_touch(uv_timer_t* timer, int status) {
- ASSERT(status == 0);
- uv_close((uv_handle_t*)timer, NULL);
- touch_file(timer->loop, "watch_file");
- timer_cb_touch_called++;
-}
-
-static void timer_cb_watch_twice(uv_timer_t* handle, int status) {
- uv_fs_event_t* handles = handle->data;
- uv_close((uv_handle_t*) (handles + 0), NULL);
- uv_close((uv_handle_t*) (handles + 1), NULL);
- uv_close((uv_handle_t*) handle, NULL);
-}
-
-TEST_IMPL(fs_event_watch_dir) {
- uv_loop_t* loop = uv_default_loop();
- int r;
-
- /* Setup */
- fs_event_unlink_files(NULL, 0);
- remove("watch_dir/file2");
- remove("watch_dir/file1");
- remove("watch_dir/");
- create_dir(loop, "watch_dir");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event, fs_event_cb_dir_multi_file, "watch_dir", 0);
- ASSERT(r == 0);
- r = uv_timer_init(loop, &timer);
- ASSERT(r == 0);
- r = uv_timer_start(&timer, fs_event_create_files, 100, 0);
- ASSERT(r == 0);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(fs_event_cb_called == 2 * fs_event_file_count);
- ASSERT(fs_event_created == fs_event_file_count);
- ASSERT(close_cb_called == 2);
-
- /* Cleanup */
- fs_event_unlink_files(NULL, 0);
- remove("watch_dir/file2");
- remove("watch_dir/file1");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-TEST_IMPL(fs_event_watch_file) {
- uv_loop_t* loop = uv_default_loop();
- int r;
-
- /* Setup */
- remove("watch_dir/file2");
- remove("watch_dir/file1");
- remove("watch_dir/");
- create_dir(loop, "watch_dir");
- create_file(loop, "watch_dir/file1");
- create_file(loop, "watch_dir/file2");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event, fs_event_cb_file, "watch_dir/file2", 0);
- ASSERT(r == 0);
- r = uv_timer_init(loop, &timer);
- ASSERT(r == 0);
- r = uv_timer_start(&timer, timer_cb_file, 100, 100);
- ASSERT(r == 0);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(fs_event_cb_called == 1);
- ASSERT(timer_cb_called == 2);
- ASSERT(close_cb_called == 2);
-
- /* Cleanup */
- remove("watch_dir/file2");
- remove("watch_dir/file1");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-TEST_IMPL(fs_event_watch_file_twice) {
- const char path[] = "test/fixtures/empty_file";
- uv_fs_event_t watchers[2];
- uv_timer_t timer;
- uv_loop_t* loop;
-
- loop = uv_default_loop();
- timer.data = watchers;
-
- ASSERT(0 == uv_fs_event_init(loop, watchers + 0));
- ASSERT(0 == uv_fs_event_start(watchers + 0, fail_cb, path, 0));
- ASSERT(0 == uv_fs_event_init(loop, watchers + 1));
- ASSERT(0 == uv_fs_event_start(watchers + 1, fail_cb, path, 0));
- ASSERT(0 == uv_timer_init(loop, &timer));
- ASSERT(0 == uv_timer_start(&timer, timer_cb_watch_twice, 10, 0));
- ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-TEST_IMPL(fs_event_watch_file_current_dir) {
- uv_timer_t timer;
- uv_loop_t* loop;
- int r;
-
- loop = uv_default_loop();
-
- /* Setup */
- remove("watch_file");
- create_file(loop, "watch_file");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event,
- fs_event_cb_file_current_dir,
- "watch_file",
- 0);
- ASSERT(r == 0);
-
-
- r = uv_timer_init(loop, &timer);
- ASSERT(r == 0);
-
- r = uv_timer_start(&timer, timer_cb_touch, 1, 0);
- ASSERT(r == 0);
-
- ASSERT(timer_cb_touch_called == 0);
- ASSERT(fs_event_cb_called == 0);
- ASSERT(close_cb_called == 0);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(timer_cb_touch_called == 1);
- ASSERT(fs_event_cb_called == 1);
- ASSERT(close_cb_called == 1);
-
- /* Cleanup */
- remove("watch_file");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-TEST_IMPL(fs_event_no_callback_after_close) {
- uv_loop_t* loop = uv_default_loop();
- int r;
-
- /* Setup */
- remove("watch_dir/file1");
- remove("watch_dir/");
- create_dir(loop, "watch_dir");
- create_file(loop, "watch_dir/file1");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event,
- fs_event_cb_file,
- "watch_dir/file1",
- 0);
- ASSERT(r == 0);
-
-
- uv_close((uv_handle_t*)&fs_event, close_cb);
- touch_file(loop, "watch_dir/file1");
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(fs_event_cb_called == 0);
- ASSERT(close_cb_called == 1);
-
- /* Cleanup */
- remove("watch_dir/file1");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-TEST_IMPL(fs_event_no_callback_on_close) {
- uv_loop_t* loop = uv_default_loop();
- int r;
-
- /* Setup */
- remove("watch_dir/file1");
- remove("watch_dir/");
- create_dir(loop, "watch_dir");
- create_file(loop, "watch_dir/file1");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event,
- fs_event_cb_file,
- "watch_dir/file1",
- 0);
- ASSERT(r == 0);
-
- uv_close((uv_handle_t*)&fs_event, close_cb);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(fs_event_cb_called == 0);
- ASSERT(close_cb_called == 1);
-
- /* Cleanup */
- remove("watch_dir/file1");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-
-static void fs_event_fail(uv_fs_event_t* handle, const char* filename,
- int events, int status) {
- ASSERT(0 && "should never be called");
-}
-
-
-static void timer_cb(uv_timer_t* handle, int status) {
- int r;
-
- ASSERT(status == 0);
-
- r = uv_fs_event_init(handle->loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event, fs_event_fail, ".", 0);
- ASSERT(r == 0);
-
- uv_close((uv_handle_t*)&fs_event, close_cb);
- uv_close((uv_handle_t*)handle, close_cb);
-}
-
-
-TEST_IMPL(fs_event_immediate_close) {
- uv_timer_t timer;
- uv_loop_t* loop;
- int r;
-
- loop = uv_default_loop();
-
- r = uv_timer_init(loop, &timer);
- ASSERT(r == 0);
-
- r = uv_timer_start(&timer, timer_cb, 1, 0);
- ASSERT(r == 0);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(close_cb_called == 2);
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-
-TEST_IMPL(fs_event_close_with_pending_event) {
- uv_loop_t* loop;
- int r;
-
- loop = uv_default_loop();
-
- create_dir(loop, "watch_dir");
- create_file(loop, "watch_dir/file");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event, fs_event_fail, "watch_dir", 0);
- ASSERT(r == 0);
-
- /* Generate an fs event. */
- touch_file(loop, "watch_dir/file");
-
- uv_close((uv_handle_t*)&fs_event, close_cb);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(close_cb_called == 1);
-
- /* Clean up */
- remove("watch_dir/file");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-#if defined(HAVE_KQUEUE)
-
-/* kqueue doesn't register fs events if you don't have an active watcher.
- * The file descriptor needs to be part of the kqueue set of interest and
- * that's not the case until we actually enter the event loop.
- */
-TEST_IMPL(fs_event_close_in_callback) {
- fprintf(stderr, "Skipping test, doesn't work with kqueue.\n");
- return 0;
-}
-
-#else /* !HAVE_KQUEUE */
-
-static void fs_event_cb_close(uv_fs_event_t* handle, const char* filename,
- int events, int status) {
- ASSERT(status == 0);
-
- ASSERT(fs_event_cb_called < 3);
- ++fs_event_cb_called;
-
- if (fs_event_cb_called == 3) {
- uv_close((uv_handle_t*) handle, close_cb);
- }
-}
-
-
-TEST_IMPL(fs_event_close_in_callback) {
- uv_loop_t* loop;
- int r;
-
- loop = uv_default_loop();
-
- create_dir(loop, "watch_dir");
- create_file(loop, "watch_dir/file1");
- create_file(loop, "watch_dir/file2");
- create_file(loop, "watch_dir/file3");
- create_file(loop, "watch_dir/file4");
- create_file(loop, "watch_dir/file5");
-
- r = uv_fs_event_init(loop, &fs_event);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event, fs_event_cb_close, "watch_dir", 0);
- ASSERT(r == 0);
-
- /* Generate a couple of fs events. */
- touch_file(loop, "watch_dir/file1");
- touch_file(loop, "watch_dir/file2");
- touch_file(loop, "watch_dir/file3");
- touch_file(loop, "watch_dir/file4");
- touch_file(loop, "watch_dir/file5");
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(close_cb_called == 1);
- ASSERT(fs_event_cb_called == 3);
-
- /* Clean up */
- remove("watch_dir/file1");
- remove("watch_dir/file2");
- remove("watch_dir/file3");
- remove("watch_dir/file4");
- remove("watch_dir/file5");
- remove("watch_dir/");
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-#endif /* HAVE_KQUEUE */
-
-TEST_IMPL(fs_event_start_and_close) {
- uv_loop_t* loop;
- uv_fs_event_t fs_event1;
- uv_fs_event_t fs_event2;
- int r;
-
- loop = uv_default_loop();
-
- create_dir(loop, "watch_dir");
-
- r = uv_fs_event_init(loop, &fs_event1);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event1, fs_event_cb_dir, "watch_dir", 0);
- ASSERT(r == 0);
-
- r = uv_fs_event_init(loop, &fs_event2);
- ASSERT(r == 0);
- r = uv_fs_event_start(&fs_event2, fs_event_cb_dir, "watch_dir", 0);
- ASSERT(r == 0);
-
- uv_close((uv_handle_t*) &fs_event2, close_cb);
- uv_close((uv_handle_t*) &fs_event1, close_cb);
-
- uv_run(loop, UV_RUN_DEFAULT);
-
- ASSERT(close_cb_called == 2);
-
- remove("watch_dir/");
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-#if defined(__APPLE__)
-
-static int fs_event_error_reported;
-
-static void fs_event_error_report_cb(uv_fs_event_t* handle,
- const char* filename,
- int events,
- int status) {
- if (status != 0)
- fs_event_error_reported = status;
-}
-
-static void timer_cb_nop(uv_timer_t* handle, int status) {
- ++timer_cb_called;
- uv_close((uv_handle_t*) handle, close_cb);
-}
-
-static void fs_event_error_report_close_cb(uv_handle_t* handle) {
- ASSERT(handle != NULL);
- close_cb_called++;
-
- /* handle is allocated on-stack, no need to free it */
-}
-
-
-TEST_IMPL(fs_event_error_reporting) {
- unsigned int i;
- uv_loop_t* loops[1024];
- uv_fs_event_t events[ARRAY_SIZE(loops)];
- uv_loop_t* loop;
- uv_fs_event_t* event;
-
- TEST_FILE_LIMIT(ARRAY_SIZE(loops) * 3);
-
- remove("watch_dir/");
- create_dir(uv_default_loop(), "watch_dir");
-
- /* Create a lot of loops, and start FSEventStream in each of them.
- * Eventually, this should create enough streams to make FSEventStreamStart()
- * fail.
- */
- for (i = 0; i < ARRAY_SIZE(loops); i++) {
- loop = uv_loop_new();
- event = &events[i];
- ASSERT(loop != NULL);
-
- loops[i] = loop;
- timer_cb_called = 0;
- close_cb_called = 0;
- ASSERT(0 == uv_fs_event_init(loop, event));
- ASSERT(0 == uv_fs_event_start(event,
- fs_event_error_report_cb,
- "watch_dir",
- 0));
- uv_unref((uv_handle_t*) event);
-
- /* Let loop run for some time */
- ASSERT(0 == uv_timer_init(loop, &timer));
- ASSERT(0 == uv_timer_start(&timer, timer_cb_nop, 2, 0));
- uv_run(loop, UV_RUN_DEFAULT);
- ASSERT(1 == timer_cb_called);
- ASSERT(1 == close_cb_called);
- if (fs_event_error_reported != 0)
- break;
- }
-
- /* At least one loop should fail */
- ASSERT(fs_event_error_reported == UV_EMFILE);
-
- /* Stop and close all events, and destroy loops */
- do {
- loop = loops[i];
- event = &events[i];
-
- ASSERT(0 == uv_fs_event_stop(event));
- uv_ref((uv_handle_t*) event);
- uv_close((uv_handle_t*) event, fs_event_error_report_close_cb);
-
- close_cb_called = 0;
- uv_run(loop, UV_RUN_DEFAULT);
- ASSERT(close_cb_called == 1);
-
- uv_loop_delete(loop);
-
- loops[i] = NULL;
- } while (i-- != 0);
-
- remove("watch_dir/");
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-#else /* !defined(__APPLE__) */
-
-TEST_IMPL(fs_event_error_reporting) {
- /* No-op, needed only for FSEvents backend */
-
- MAKE_VALGRIND_HAPPY();
- return 0;
-}
-
-#endif /* defined(__APPLE__) */
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "task.h"
+
+#include <string.h>
+#include <fcntl.h>
+
+#ifndef HAVE_KQUEUE
+# if defined(__APPLE__) || \
+ defined(__DragonFly__) || \
+ defined(__FreeBSD__) || \
+ defined(__OpenBSD__) || \
+ defined(__NetBSD__)
+# define HAVE_KQUEUE 1
+# endif
+#endif
+
+static uv_fs_event_t fs_event;
+static const char file_prefix[] = "fsevent-";
+static uv_timer_t timer;
+static int timer_cb_called;
+static int close_cb_called;
+static const int fs_event_file_count = 128;
+static int fs_event_created;
+static int fs_event_cb_called;
+#if defined(PATH_MAX)
+static char fs_event_filename[PATH_MAX];
+#else
+static char fs_event_filename[1024];
+#endif /* defined(PATH_MAX) */
+static int timer_cb_touch_called;
+
+static void fs_event_unlink_files(uv_timer_t* handle, int status);
+
+static void create_dir(uv_loop_t* loop, const char* name) {
+ int r;
+ uv_fs_t req;
+ r = uv_fs_mkdir(loop, &req, name, 0755, NULL);
+ ASSERT(r == 0 || r == UV_EEXIST);
+ uv_fs_req_cleanup(&req);
+}
+
+static void create_file(uv_loop_t* loop, const char* name) {
+ int r;
+ uv_file file;
+ uv_fs_t req;
+
+ r = uv_fs_open(loop, &req, name, O_WRONLY | O_CREAT,
+ S_IWUSR | S_IRUSR, NULL);
+ ASSERT(r >= 0);
+ file = r;
+ uv_fs_req_cleanup(&req);
+ r = uv_fs_close(loop, &req, file, NULL);
+ ASSERT(r == 0);
+ uv_fs_req_cleanup(&req);
+}
+
+static void touch_file(uv_loop_t* loop, const char* name) {
+ int r;
+ uv_file file;
+ uv_fs_t req;
+
+ r = uv_fs_open(loop, &req, name, O_RDWR, 0, NULL);
+ ASSERT(r >= 0);
+ file = r;
+ uv_fs_req_cleanup(&req);
+
+ r = uv_fs_write(loop, &req, file, "foo", 4, -1, NULL);
+ ASSERT(r >= 0);
+ uv_fs_req_cleanup(&req);
+
+ r = uv_fs_close(loop, &req, file, NULL);
+ ASSERT(r == 0);
+ uv_fs_req_cleanup(&req);
+}
+
+static void close_cb(uv_handle_t* handle) {
+ ASSERT(handle != NULL);
+ close_cb_called++;
+}
+
+static void fail_cb(uv_fs_event_t* handle,
+ const char* path,
+ int events,
+ int status) {
+ ASSERT(0 && "fail_cb called");
+}
+
+static void fs_event_cb_dir(uv_fs_event_t* handle, const char* filename,
+ int events, int status) {
+ ++fs_event_cb_called;
+ ASSERT(handle == &fs_event);
+ ASSERT(status == 0);
+ ASSERT(events == UV_RENAME);
+ ASSERT(filename == NULL || strcmp(filename, "file1") == 0);
+ ASSERT(0 == uv_fs_event_stop(handle));
+ uv_close((uv_handle_t*)handle, close_cb);
+}
+
+static void fs_event_cb_dir_multi_file(uv_fs_event_t* handle,
+ const char* filename,
+ int events,
+ int status) {
+ fs_event_cb_called++;
+ ASSERT(handle == &fs_event);
+ ASSERT(status == 0);
+ ASSERT(events == UV_RENAME);
+ ASSERT(filename == NULL ||
+ strncmp(filename, file_prefix, sizeof(file_prefix) - 1) == 0);
+
+ /* Stop watching dir when received events about all files:
+ * both create and close events */
+ if (fs_event_cb_called == 2 * fs_event_file_count) {
+ ASSERT(0 == uv_fs_event_stop(handle));
+ uv_close((uv_handle_t*) handle, close_cb);
+ }
+}
+
+static const char* fs_event_get_filename(int i) {
+ snprintf(fs_event_filename,
+ sizeof(fs_event_filename),
+ "watch_dir/%s%d",
+ file_prefix,
+ i);
+ return fs_event_filename;
+}
+
+static void fs_event_create_files(uv_timer_t* handle, int status) {
+ int i;
+
+ /* Already created all files */
+ if (fs_event_created == fs_event_file_count) {
+ uv_close((uv_handle_t*) &timer, close_cb);
+ return;
+ }
+
+ /* Create all files */
+ for (i = 0; i < 16; i++, fs_event_created++)
+ create_file(handle->loop, fs_event_get_filename(i));
+
+ /* And unlink them */
+ ASSERT(0 == uv_timer_start(&timer, fs_event_unlink_files, 50, 0));
+}
+
+void fs_event_unlink_files(uv_timer_t* handle, int status) {
+ int r;
+ int i;
+
+ /* NOTE: handle might be NULL if invoked not as timer callback */
+
+ /* Unlink all files */
+ for (i = 0; i < 16; i++) {
+ r = remove(fs_event_get_filename(i));
+ if (handle != NULL)
+ ASSERT(r == 0);
+ }
+
+ /* And create them again */
+ if (handle != NULL)
+ ASSERT(0 == uv_timer_start(&timer, fs_event_create_files, 50, 0));
+}
+
+static void fs_event_cb_file(uv_fs_event_t* handle, const char* filename,
+ int events, int status) {
+ ++fs_event_cb_called;
+ ASSERT(handle == &fs_event);
+ ASSERT(status == 0);
+ ASSERT(events == UV_CHANGE);
+ ASSERT(filename == NULL || strcmp(filename, "file2") == 0);
+ ASSERT(0 == uv_fs_event_stop(handle));
+ uv_close((uv_handle_t*)handle, close_cb);
+}
+
+static void timer_cb_close_handle(uv_timer_t* timer, int status) {
+ uv_handle_t* handle;
+
+ ASSERT(timer != NULL);
+ ASSERT(status == 0);
+ handle = timer->data;
+
+ uv_close((uv_handle_t*)timer, NULL);
+ uv_close((uv_handle_t*)handle, close_cb);
+}
+
+static void fs_event_cb_file_current_dir(uv_fs_event_t* handle,
+ const char* filename, int events, int status) {
+ ASSERT(fs_event_cb_called == 0);
+ ++fs_event_cb_called;
+
+ ASSERT(handle == &fs_event);
+ ASSERT(status == 0);
+ ASSERT(events == UV_CHANGE);
+ ASSERT(filename == NULL || strcmp(filename, "watch_file") == 0);
+
+ /* Regression test for SunOS: touch should generate just one event. */
+ {
+ static uv_timer_t timer;
+ uv_timer_init(handle->loop, &timer);
+ timer.data = handle;
+ uv_timer_start(&timer, timer_cb_close_handle, 250, 0);
+ }
+}
+
+static void timer_cb_file(uv_timer_t* handle, int status) {
+ ++timer_cb_called;
+
+ if (timer_cb_called == 1) {
+ touch_file(handle->loop, "watch_dir/file1");
+ } else {
+ touch_file(handle->loop, "watch_dir/file2");
+ uv_close((uv_handle_t*)handle, close_cb);
+ }
+}
+
+static void timer_cb_touch(uv_timer_t* timer, int status) {
+ ASSERT(status == 0);
+ uv_close((uv_handle_t*)timer, NULL);
+ touch_file(timer->loop, "watch_file");
+ timer_cb_touch_called++;
+}
+
+static void timer_cb_watch_twice(uv_timer_t* handle, int status) {
+ uv_fs_event_t* handles = handle->data;
+ uv_close((uv_handle_t*) (handles + 0), NULL);
+ uv_close((uv_handle_t*) (handles + 1), NULL);
+ uv_close((uv_handle_t*) handle, NULL);
+}
+
+TEST_IMPL(fs_event_watch_dir) {
+ uv_loop_t* loop = uv_default_loop();
+ int r;
+
+ /* Setup */
+ fs_event_unlink_files(NULL, 0);
+ remove("watch_dir/file2");
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+ create_dir(loop, "watch_dir");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event, fs_event_cb_dir_multi_file, "watch_dir", 0);
+ ASSERT(r == 0);
+ r = uv_timer_init(loop, &timer);
+ ASSERT(r == 0);
+ r = uv_timer_start(&timer, fs_event_create_files, 100, 0);
+ ASSERT(r == 0);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(fs_event_cb_called == 2 * fs_event_file_count);
+ ASSERT(fs_event_created == fs_event_file_count);
+ ASSERT(close_cb_called == 2);
+
+ /* Cleanup */
+ fs_event_unlink_files(NULL, 0);
+ remove("watch_dir/file2");
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+TEST_IMPL(fs_event_watch_file) {
+ uv_loop_t* loop = uv_default_loop();
+ int r;
+
+ /* Setup */
+ remove("watch_dir/file2");
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+ create_dir(loop, "watch_dir");
+ create_file(loop, "watch_dir/file1");
+ create_file(loop, "watch_dir/file2");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event, fs_event_cb_file, "watch_dir/file2", 0);
+ ASSERT(r == 0);
+ r = uv_timer_init(loop, &timer);
+ ASSERT(r == 0);
+ r = uv_timer_start(&timer, timer_cb_file, 100, 100);
+ ASSERT(r == 0);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(fs_event_cb_called == 1);
+ ASSERT(timer_cb_called == 2);
+ ASSERT(close_cb_called == 2);
+
+ /* Cleanup */
+ remove("watch_dir/file2");
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+TEST_IMPL(fs_event_watch_file_twice) {
+ const char path[] = "test/fixtures/empty_file";
+ uv_fs_event_t watchers[2];
+ uv_timer_t timer;
+ uv_loop_t* loop;
+
+ loop = uv_default_loop();
+ timer.data = watchers;
+
+ ASSERT(0 == uv_fs_event_init(loop, watchers + 0));
+ ASSERT(0 == uv_fs_event_start(watchers + 0, fail_cb, path, 0));
+ ASSERT(0 == uv_fs_event_init(loop, watchers + 1));
+ ASSERT(0 == uv_fs_event_start(watchers + 1, fail_cb, path, 0));
+ ASSERT(0 == uv_timer_init(loop, &timer));
+ ASSERT(0 == uv_timer_start(&timer, timer_cb_watch_twice, 10, 0));
+ ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+TEST_IMPL(fs_event_watch_file_current_dir) {
+ uv_timer_t timer;
+ uv_loop_t* loop;
+ int r;
+
+ loop = uv_default_loop();
+
+ /* Setup */
+ remove("watch_file");
+ create_file(loop, "watch_file");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event,
+ fs_event_cb_file_current_dir,
+ "watch_file",
+ 0);
+ ASSERT(r == 0);
+
+
+ r = uv_timer_init(loop, &timer);
+ ASSERT(r == 0);
+
+ r = uv_timer_start(&timer, timer_cb_touch, 1, 0);
+ ASSERT(r == 0);
+
+ ASSERT(timer_cb_touch_called == 0);
+ ASSERT(fs_event_cb_called == 0);
+ ASSERT(close_cb_called == 0);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(timer_cb_touch_called == 1);
+ ASSERT(fs_event_cb_called == 1);
+ ASSERT(close_cb_called == 1);
+
+ /* Cleanup */
+ remove("watch_file");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+TEST_IMPL(fs_event_no_callback_after_close) {
+ uv_loop_t* loop = uv_default_loop();
+ int r;
+
+ /* Setup */
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+ create_dir(loop, "watch_dir");
+ create_file(loop, "watch_dir/file1");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event,
+ fs_event_cb_file,
+ "watch_dir/file1",
+ 0);
+ ASSERT(r == 0);
+
+
+ uv_close((uv_handle_t*)&fs_event, close_cb);
+ touch_file(loop, "watch_dir/file1");
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(fs_event_cb_called == 0);
+ ASSERT(close_cb_called == 1);
+
+ /* Cleanup */
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+TEST_IMPL(fs_event_no_callback_on_close) {
+ uv_loop_t* loop = uv_default_loop();
+ int r;
+
+ /* Setup */
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+ create_dir(loop, "watch_dir");
+ create_file(loop, "watch_dir/file1");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event,
+ fs_event_cb_file,
+ "watch_dir/file1",
+ 0);
+ ASSERT(r == 0);
+
+ uv_close((uv_handle_t*)&fs_event, close_cb);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(fs_event_cb_called == 0);
+ ASSERT(close_cb_called == 1);
+
+ /* Cleanup */
+ remove("watch_dir/file1");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+
+static void fs_event_fail(uv_fs_event_t* handle, const char* filename,
+ int events, int status) {
+ ASSERT(0 && "should never be called");
+}
+
+
+static void timer_cb(uv_timer_t* handle, int status) {
+ int r;
+
+ ASSERT(status == 0);
+
+ r = uv_fs_event_init(handle->loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event, fs_event_fail, ".", 0);
+ ASSERT(r == 0);
+
+ uv_close((uv_handle_t*)&fs_event, close_cb);
+ uv_close((uv_handle_t*)handle, close_cb);
+}
+
+
+TEST_IMPL(fs_event_immediate_close) {
+ uv_timer_t timer;
+ uv_loop_t* loop;
+ int r;
+
+ loop = uv_default_loop();
+
+ r = uv_timer_init(loop, &timer);
+ ASSERT(r == 0);
+
+ r = uv_timer_start(&timer, timer_cb, 1, 0);
+ ASSERT(r == 0);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(close_cb_called == 2);
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+
+TEST_IMPL(fs_event_close_with_pending_event) {
+ uv_loop_t* loop;
+ int r;
+
+ loop = uv_default_loop();
+
+ create_dir(loop, "watch_dir");
+ create_file(loop, "watch_dir/file");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event, fs_event_fail, "watch_dir", 0);
+ ASSERT(r == 0);
+
+ /* Generate an fs event. */
+ touch_file(loop, "watch_dir/file");
+
+ uv_close((uv_handle_t*)&fs_event, close_cb);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(close_cb_called == 1);
+
+ /* Clean up */
+ remove("watch_dir/file");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#if defined(HAVE_KQUEUE)
+
+/* kqueue doesn't register fs events if you don't have an active watcher.
+ * The file descriptor needs to be part of the kqueue set of interest and
+ * that's not the case until we actually enter the event loop.
+ */
+TEST_IMPL(fs_event_close_in_callback) {
+ fprintf(stderr, "Skipping test, doesn't work with kqueue.\n");
+ return 0;
+}
+
+#else /* !HAVE_KQUEUE */
+
+static void fs_event_cb_close(uv_fs_event_t* handle, const char* filename,
+ int events, int status) {
+ ASSERT(status == 0);
+
+ ASSERT(fs_event_cb_called < 3);
+ ++fs_event_cb_called;
+
+ if (fs_event_cb_called == 3) {
+ uv_close((uv_handle_t*) handle, close_cb);
+ }
+}
+
+
+TEST_IMPL(fs_event_close_in_callback) {
+ uv_loop_t* loop;
+ int r;
+
+ loop = uv_default_loop();
+
+ create_dir(loop, "watch_dir");
+ create_file(loop, "watch_dir/file1");
+ create_file(loop, "watch_dir/file2");
+ create_file(loop, "watch_dir/file3");
+ create_file(loop, "watch_dir/file4");
+ create_file(loop, "watch_dir/file5");
+
+ r = uv_fs_event_init(loop, &fs_event);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event, fs_event_cb_close, "watch_dir", 0);
+ ASSERT(r == 0);
+
+ /* Generate a couple of fs events. */
+ touch_file(loop, "watch_dir/file1");
+ touch_file(loop, "watch_dir/file2");
+ touch_file(loop, "watch_dir/file3");
+ touch_file(loop, "watch_dir/file4");
+ touch_file(loop, "watch_dir/file5");
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(close_cb_called == 1);
+ ASSERT(fs_event_cb_called == 3);
+
+ /* Clean up */
+ remove("watch_dir/file1");
+ remove("watch_dir/file2");
+ remove("watch_dir/file3");
+ remove("watch_dir/file4");
+ remove("watch_dir/file5");
+ remove("watch_dir/");
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#endif /* HAVE_KQUEUE */
+
+TEST_IMPL(fs_event_start_and_close) {
+ uv_loop_t* loop;
+ uv_fs_event_t fs_event1;
+ uv_fs_event_t fs_event2;
+ int r;
+
+ loop = uv_default_loop();
+
+ create_dir(loop, "watch_dir");
+
+ r = uv_fs_event_init(loop, &fs_event1);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event1, fs_event_cb_dir, "watch_dir", 0);
+ ASSERT(r == 0);
+
+ r = uv_fs_event_init(loop, &fs_event2);
+ ASSERT(r == 0);
+ r = uv_fs_event_start(&fs_event2, fs_event_cb_dir, "watch_dir", 0);
+ ASSERT(r == 0);
+
+ uv_close((uv_handle_t*) &fs_event2, close_cb);
+ uv_close((uv_handle_t*) &fs_event1, close_cb);
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(close_cb_called == 2);
+
+ remove("watch_dir/");
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#if defined(__APPLE__)
+
+static int fs_event_error_reported;
+
+static void fs_event_error_report_cb(uv_fs_event_t* handle,
+ const char* filename,
+ int events,
+ int status) {
+ if (status != 0)
+ fs_event_error_reported = status;
+}
+
+static void timer_cb_nop(uv_timer_t* handle, int status) {
+ ++timer_cb_called;
+ uv_close((uv_handle_t*) handle, close_cb);
+}
+
+static void fs_event_error_report_close_cb(uv_handle_t* handle) {
+ ASSERT(handle != NULL);
+ close_cb_called++;
+
+ /* handle is allocated on-stack, no need to free it */
+}
+
+
+TEST_IMPL(fs_event_error_reporting) {
+ unsigned int i;
+ uv_loop_t* loops[1024];
+ uv_fs_event_t events[ARRAY_SIZE(loops)];
+ uv_loop_t* loop;
+ uv_fs_event_t* event;
+
+ TEST_FILE_LIMIT(ARRAY_SIZE(loops) * 3);
+
+ remove("watch_dir/");
+ create_dir(uv_default_loop(), "watch_dir");
+
+ /* Create a lot of loops, and start FSEventStream in each of them.
+ * Eventually, this should create enough streams to make FSEventStreamStart()
+ * fail.
+ */
+ for (i = 0; i < ARRAY_SIZE(loops); i++) {
+ loop = uv_loop_new();
+ event = &events[i];
+ ASSERT(loop != NULL);
+
+ loops[i] = loop;
+ timer_cb_called = 0;
+ close_cb_called = 0;
+ ASSERT(0 == uv_fs_event_init(loop, event));
+ ASSERT(0 == uv_fs_event_start(event,
+ fs_event_error_report_cb,
+ "watch_dir",
+ 0));
+ uv_unref((uv_handle_t*) event);
+
+ /* Let loop run for some time */
+ ASSERT(0 == uv_timer_init(loop, &timer));
+ ASSERT(0 == uv_timer_start(&timer, timer_cb_nop, 2, 0));
+ uv_run(loop, UV_RUN_DEFAULT);
+ ASSERT(1 == timer_cb_called);
+ ASSERT(1 == close_cb_called);
+ if (fs_event_error_reported != 0)
+ break;
+ }
+
+ /* At least one loop should fail */
+ ASSERT(fs_event_error_reported == UV_EMFILE);
+
+ /* Stop and close all events, and destroy loops */
+ do {
+ loop = loops[i];
+ event = &events[i];
+
+ ASSERT(0 == uv_fs_event_stop(event));
+ uv_ref((uv_handle_t*) event);
+ uv_close((uv_handle_t*) event, fs_event_error_report_close_cb);
+
+ close_cb_called = 0;
+ uv_run(loop, UV_RUN_DEFAULT);
+ ASSERT(close_cb_called == 1);
+
+ uv_loop_delete(loop);
+
+ loops[i] = NULL;
+ } while (i-- != 0);
+
+ remove("watch_dir/");
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#else /* !defined(__APPLE__) */
+
+TEST_IMPL(fs_event_error_reporting) {
+ /* No-op, needed only for FSEvents backend */
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#endif /* defined(__APPLE__) */