зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.4 KiB
C++
68 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ProfilerThreadRegistrationInfo_h
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#define ProfilerThreadRegistrationInfo_h
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#include "mozilla/BaseAndGeckoProfilerDetail.h"
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#include "mozilla/ProfilerUtils.h"
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#include "mozilla/TimeStamp.h"
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#include <string>
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namespace mozilla::profiler {
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// This class contains immutable information about a thread which needs to be
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// stored across restarts of the profiler and which can be useful even after the
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// thread has stopped running.
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class ThreadRegistrationInfo {
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public:
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// Construct on the thread.
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explicit ThreadRegistrationInfo(const char* aName) : mName(aName) {}
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// Construct for a foreign thread (e.g., Java).
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ThreadRegistrationInfo(const char* aName, ProfilerThreadId aThreadId,
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bool aIsMainThread, const TimeStamp& aRegisterTime)
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: mName(aName),
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mRegisterTime(aRegisterTime),
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mThreadId(aThreadId),
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mIsMainThread(aIsMainThread) {}
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// Only allow move construction, for extraction when the thread ends.
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ThreadRegistrationInfo(ThreadRegistrationInfo&&) = default;
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// Other copies/moves disallowed.
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ThreadRegistrationInfo(const ThreadRegistrationInfo&) = delete;
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ThreadRegistrationInfo& operator=(const ThreadRegistrationInfo&) = delete;
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ThreadRegistrationInfo& operator=(ThreadRegistrationInfo&&) = delete;
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[[nodiscard]] const char* Name() const { return mName.c_str(); }
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[[nodiscard]] const TimeStamp& RegisterTime() const { return mRegisterTime; }
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[[nodiscard]] ProfilerThreadId ThreadId() const { return mThreadId; }
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[[nodiscard]] bool IsMainThread() const { return mIsMainThread; }
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private:
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static TimeStamp ExistingRegisterTimeOrNow() {
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TimeStamp registerTime;
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#ifdef MOZ_GECKO_PROFILER
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registerTime = baseprofiler::detail::GetThreadRegistrationTime();
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#endif
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if (!registerTime) {
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registerTime = TimeStamp::Now();
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}
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return registerTime;
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}
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const std::string mName;
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const TimeStamp mRegisterTime = ExistingRegisterTimeOrNow();
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const ProfilerThreadId mThreadId = profiler_current_thread_id();
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const bool mIsMainThread = profiler_is_main_thread();
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};
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} // namespace mozilla::profiler
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#endif // ProfilerThreadRegistrationInfo_h
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