mesa/src/util/u_perfetto.cc

53 lines
1.7 KiB
C++

/*
* Copyright © 2021 Google, Inc.
*
* 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 (including the next
* paragraph) 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 <perfetto.h>
#include "c11/threads.h"
#include "u_perfetto.h"
static void
util_perfetto_fini(void)
{
perfetto::Tracing::Shutdown();
}
static void
util_perfetto_init_once(void)
{
// Connects to the system tracing service
perfetto::TracingInitArgs args;
args.backends = perfetto::kSystemBackend;
perfetto::Tracing::Initialize(args);
atexit(&util_perfetto_fini);
}
static once_flag perfetto_once_flag = ONCE_FLAG_INIT;
void
util_perfetto_init(void)
{
call_once(&perfetto_once_flag, util_perfetto_init_once);
}