42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Copyright 2019 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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#ifndef BASE_PROFILER_SAMPLING_PROFILER_THREAD_TOKEN_H_
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#define BASE_PROFILER_SAMPLING_PROFILER_THREAD_TOKEN_H_
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#include "base/base_export.h"
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#include "base/threading/platform_thread.h"
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#include "build/build_config.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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#if BUILDFLAG(IS_ANDROID)
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#include <pthread.h>
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#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
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#include <stdint.h>
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#endif
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namespace base {
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// SamplingProfilerThreadToken represents the thread identifier(s) required by
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// sampling profiler to operate on a thread. PlatformThreadId is needed for all
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// platforms, while Android also requires a pthread_t to pass to pthread
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// functions used to obtain the stack base address.
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struct SamplingProfilerThreadToken {
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PlatformThreadId id;
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#if BUILDFLAG(IS_ANDROID)
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pthread_t pthread_id;
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#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
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// Due to the sandbox, we can only retrieve the stack base address for the
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// current thread. We must grab it during
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// GetSamplingProfilerCurrentThreadToken() and not try to get it later.
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absl::optional<uintptr_t> stack_base_address;
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#endif
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};
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BASE_EXPORT SamplingProfilerThreadToken GetSamplingProfilerCurrentThreadToken();
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} // namespace base
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#endif // BASE_PROFILER_SAMPLING_PROFILER_THREAD_TOKEN_H_
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