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