1 /*
2 * Copyright © 2021 Google, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 #include <perfetto.h>
25
26 #include "c11/threads.h"
27
28 #include "u_perfetto.h"
29
30 static void
util_perfetto_fini(void)31 util_perfetto_fini(void)
32 {
33 perfetto::Tracing::Shutdown();
34 }
35
36 static void
util_perfetto_init_once(void)37 util_perfetto_init_once(void)
38 {
39 // Connects to the system tracing service
40 perfetto::TracingInitArgs args;
41 args.backends = perfetto::kSystemBackend;
42 perfetto::Tracing::Initialize(args);
43 atexit(&util_perfetto_fini);
44 }
45
46 static once_flag perfetto_once_flag = ONCE_FLAG_INIT;
47
48 void
util_perfetto_init(void)49 util_perfetto_init(void)
50 {
51 call_once(&perfetto_once_flag, util_perfetto_init_once);
52 }
53