1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
base / trace_event / trace_id_helper.h [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_TRACE_EVENT_TRACE_ID_HELPER_H_
#define BASE_TRACE_EVENT_TRACE_ID_HELPER_H_
#include <cstdint>
#include "base/base_export.h"
namespace base {
namespace trace_event {
// Returns an globally-unique id which can be used as a flow id or async event
// id. This is fast (powered by an memory-order-relaxed atomic int), so use this
// function instead of implementing your own counter and hashing it with a
// random value. However, consider using TRACE_ID_LOCAL(this) to avoid storing
// additional data if possible.
BASE_EXPORT uint64_t GetNextGlobalTraceId();
} // namespace trace_event
} // namespace base
#endif // BASE_TRACE_EVENT_TRACE_ID_HELPER_H_