| // 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_ |
