зеркало из https://github.com/mozilla/gecko-dev.git
63 строки
2.0 KiB
C++
63 строки
2.0 KiB
C++
/* -*- 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 ThreadInfo_h
|
|
#define ThreadInfo_h
|
|
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/BaseProfilerUtils.h"
|
|
#include "mozilla/TimeStamp.h"
|
|
|
|
namespace mozilla {
|
|
namespace baseprofiler {
|
|
|
|
// This class contains 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.
|
|
// It uses threadsafe refcounting and only contains immutable data.
|
|
class ThreadInfo final {
|
|
public:
|
|
ThreadInfo(const char* aName, BaseProfilerThreadId aThreadId,
|
|
bool aIsMainThread,
|
|
const TimeStamp& aRegisterTime = TimeStamp::Now())
|
|
: mName(aName),
|
|
mRegisterTime(aRegisterTime),
|
|
mThreadId(aThreadId),
|
|
mIsMainThread(aIsMainThread),
|
|
mRefCnt(0) {
|
|
MOZ_ASSERT(aThreadId.IsSpecified(),
|
|
"Given aThreadId should not be unspecified");
|
|
}
|
|
|
|
// Using hand-rolled ref-counting, because RefCounted.h macros don't produce
|
|
// the same code between mozglue and libxul, see bug 1536656.
|
|
MFBT_API void AddRef() const { ++mRefCnt; }
|
|
MFBT_API void Release() const {
|
|
MOZ_ASSERT(int32_t(mRefCnt) > 0);
|
|
if (--mRefCnt == 0) {
|
|
delete this;
|
|
}
|
|
}
|
|
|
|
const char* Name() const { return mName.c_str(); }
|
|
TimeStamp RegisterTime() const { return mRegisterTime; }
|
|
BaseProfilerThreadId ThreadId() const { return mThreadId; }
|
|
bool IsMainThread() const { return mIsMainThread; }
|
|
|
|
private:
|
|
const std::string mName;
|
|
const TimeStamp mRegisterTime;
|
|
const BaseProfilerThreadId mThreadId;
|
|
const bool mIsMainThread;
|
|
|
|
mutable Atomic<int32_t, MemoryOrdering::ReleaseAcquire> mRefCnt;
|
|
};
|
|
|
|
} // namespace baseprofiler
|
|
} // namespace mozilla
|
|
|
|
#endif // ThreadInfo_h
|