20 lines
575 B
C++
20 lines
575 B
C++
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// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/trace_event/trace_id_helper.h"
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#include "base/atomic_sequence_num.h"
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#include "base/rand_util.h"
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namespace base {
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namespace trace_event {
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uint64_t GetNextGlobalTraceId() {
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static const uint64_t kPerProcessRandomValue = base::RandUint64();
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static base::AtomicSequenceNumber counter;
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return kPerProcessRandomValue ^ static_cast<uint64_t>(counter.GetNext());
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}
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} // namespace trace_event
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} // namespace base
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