mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
118 lines
2.9 KiB
C++
118 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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/. */
|
|
|
|
#include "ThreadResponsiveness.h"
|
|
#include "platform.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsITimer.h"
|
|
#include "mozilla/Monitor.h"
|
|
#include "ProfileEntry.h"
|
|
|
|
using mozilla::Monitor;
|
|
using mozilla::MonitorAutoLock;
|
|
using mozilla::TimeStamp;
|
|
|
|
class CheckResponsivenessTask : public nsRunnable,
|
|
public nsITimerCallback {
|
|
public:
|
|
CheckResponsivenessTask()
|
|
: mLastTracerTime(TimeStamp::Now())
|
|
, mMonitor("CheckResponsivenessTask")
|
|
, mTimer(nullptr)
|
|
, mStop(false)
|
|
{
|
|
MOZ_COUNT_CTOR(CheckResponsivenessTask);
|
|
}
|
|
|
|
protected:
|
|
~CheckResponsivenessTask()
|
|
{
|
|
MOZ_COUNT_DTOR(CheckResponsivenessTask);
|
|
}
|
|
|
|
public:
|
|
NS_IMETHOD Run()
|
|
{
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (mStop)
|
|
return NS_OK;
|
|
|
|
// This is raced on because we might pause the thread here
|
|
// for profiling so if we tried to use a monitor to protect
|
|
// mLastTracerTime we could deadlock. We're risking seeing
|
|
// a partial write which will show up as an outlier in our
|
|
// performance data.
|
|
mLastTracerTime = TimeStamp::Now();
|
|
if (!mTimer) {
|
|
mTimer = do_CreateInstance("@mozilla.org/timer;1");
|
|
}
|
|
mTimer->InitWithCallback(this, 16, nsITimer::TYPE_ONE_SHOT);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP Notify(nsITimer* aTimer) MOZ_FINAL
|
|
{
|
|
NS_DispatchToMainThread(this);
|
|
return NS_OK;
|
|
}
|
|
|
|
void Terminate() {
|
|
MonitorAutoLock mon(mMonitor);
|
|
mStop = true;
|
|
}
|
|
|
|
const TimeStamp& GetLastTracerTime() const {
|
|
return mLastTracerTime;
|
|
}
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
private:
|
|
TimeStamp mLastTracerTime;
|
|
Monitor mMonitor;
|
|
nsCOMPtr<nsITimer> mTimer;
|
|
bool mStop;
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED(CheckResponsivenessTask, nsRunnable, nsITimerCallback)
|
|
|
|
ThreadResponsiveness::ThreadResponsiveness(ThreadProfile *aThreadProfile)
|
|
: mThreadProfile(aThreadProfile)
|
|
, mActiveTracerEvent(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(ThreadResponsiveness);
|
|
}
|
|
|
|
ThreadResponsiveness::~ThreadResponsiveness()
|
|
{
|
|
MOZ_COUNT_DTOR(ThreadResponsiveness);
|
|
if (mActiveTracerEvent) {
|
|
mActiveTracerEvent->Terminate();
|
|
}
|
|
}
|
|
|
|
void
|
|
ThreadResponsiveness::Update()
|
|
{
|
|
return;
|
|
if (!mActiveTracerEvent) {
|
|
if (mThreadProfile->GetThreadInfo()->IsMainThread()) {
|
|
mActiveTracerEvent = new CheckResponsivenessTask();
|
|
NS_DispatchToMainThread(mActiveTracerEvent);
|
|
} else if (mThreadProfile->GetThreadInfo()->GetThread()) {
|
|
mActiveTracerEvent = new CheckResponsivenessTask();
|
|
mThreadProfile->GetThreadInfo()->
|
|
GetThread()->Dispatch(mActiveTracerEvent, NS_DISPATCH_NORMAL);
|
|
}
|
|
}
|
|
|
|
if (mActiveTracerEvent) {
|
|
mLastTracerTime = mActiveTracerEvent->GetLastTracerTime();
|
|
}
|
|
}
|
|
|