зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
2.9 KiB
C++
103 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; 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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#include "ChildProfilerController.h"
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#include "nsThreadUtils.h"
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#include "ProfilerChild.h"
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using namespace mozilla::ipc;
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namespace mozilla {
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/* static */ already_AddRefed<ChildProfilerController>
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ChildProfilerController::Create(mozilla::ipc::Endpoint<PProfilerChild>&& aEndpoint)
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{
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MOZ_RELEASE_ASSERT(NS_IsMainThread());
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RefPtr<ChildProfilerController> cpc = new ChildProfilerController();
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cpc->Init(Move(aEndpoint));
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return cpc.forget();
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}
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ChildProfilerController::ChildProfilerController()
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{
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MOZ_COUNT_CTOR(ChildProfilerController);
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}
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void
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ChildProfilerController::Init(Endpoint<PProfilerChild>&& aEndpoint)
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{
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if (NS_SUCCEEDED(NS_NewNamedThread("ProfilerChild", getter_AddRefs(mThread)))) {
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// Now that mThread has been set, run SetupProfilerChild on the thread.
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mThread->Dispatch(NewRunnableMethod<Endpoint<PProfilerChild>&&>(
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this, &ChildProfilerController::SetupProfilerChild, Move(aEndpoint)),
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NS_DISPATCH_NORMAL);
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}
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}
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nsCString
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ChildProfilerController::GrabShutdownProfileAndShutdown()
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{
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nsCString shutdownProfile;
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ShutdownAndMaybeGrabShutdownProfileFirst(&shutdownProfile);
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return shutdownProfile;
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}
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void
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ChildProfilerController::Shutdown()
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{
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ShutdownAndMaybeGrabShutdownProfileFirst(nullptr);
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}
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void
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ChildProfilerController::ShutdownAndMaybeGrabShutdownProfileFirst(nsCString* aOutShutdownProfile)
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{
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if (mThread) {
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mThread->Dispatch(NewRunnableMethod<nsCString*>(
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this, &ChildProfilerController::ShutdownProfilerChild, aOutShutdownProfile),
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NS_DISPATCH_NORMAL);
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// Shut down the thread. This call will spin until all runnables (including
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// the ShutdownProfilerChild runnable) have been processed.
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mThread->Shutdown();
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mThread = nullptr;
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}
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}
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ChildProfilerController::~ChildProfilerController()
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{
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MOZ_COUNT_DTOR(ChildProfilerController);
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MOZ_ASSERT(!mThread, "Please call Shutdown before destroying ChildProfilerController");
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MOZ_ASSERT(!mProfilerChild);
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}
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void
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ChildProfilerController::SetupProfilerChild(Endpoint<PProfilerChild>&& aEndpoint)
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{
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MOZ_RELEASE_ASSERT(mThread == NS_GetCurrentThread());
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MOZ_ASSERT(aEndpoint.IsValid());
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mProfilerChild = new ProfilerChild();
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Endpoint<PProfilerChild> endpoint = Move(aEndpoint);
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if (!endpoint.Bind(mProfilerChild)) {
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MOZ_CRASH("Failed to bind ProfilerChild!");
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}
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}
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void
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ChildProfilerController::ShutdownProfilerChild(nsCString* aOutShutdownProfile)
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{
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MOZ_RELEASE_ASSERT(mThread == NS_GetCurrentThread());
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if (aOutShutdownProfile) {
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*aOutShutdownProfile = mProfilerChild->GrabShutdownProfile();
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}
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mProfilerChild->Destroy();
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mProfilerChild = nullptr;
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}
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} // namespace mozilla
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