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/* -*- Mode: C++; tab-width: 8; 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 ProfilerChild_h
#define ProfilerChild_h
#include "mozilla/BaseProfilerDetail.h"
#include "mozilla/DataMutex.h"
#include "mozilla/PProfilerChild.h"
#include "mozilla/ProfileBufferControlledChunkManager.h"
#include "mozilla/RefPtr.h"
class nsIThread;
namespace mozilla {
// The ProfilerChild actor is created in all processes except for the main
// process. The corresponding ProfilerParent actor is created in the main
// process, and it will notify us about profiler state changes and request
// profiles from us.
class ProfilerChild final : public PProfilerChild,
public mozilla::ipc::IShmemAllocator {
NS_INLINE_DECL_REFCOUNTING(ProfilerChild)
ProfilerChild();
// Collects and returns a profile.
// This method can be used to grab a profile just before PProfiler is torn
// down. The collected profile should then be sent through a different
// message channel that is guaranteed to stay open long enough.
nsCString GrabShutdownProfile();
void Destroy();
// This should be called regularly from outside of the profiler lock.
static void ProcessPendingUpdate();
static bool IsLockedOnCurrentThread();
private:
virtual ~ProfilerChild();
mozilla::ipc::IPCResult RecvStart(const ProfilerInitParams& params) override;
mozilla::ipc::IPCResult RecvEnsureStarted(
const ProfilerInitParams& params) override;
mozilla::ipc::IPCResult RecvStop() override;
mozilla::ipc::IPCResult RecvPause() override;
mozilla::ipc::IPCResult RecvResume() override;
mozilla::ipc::IPCResult RecvPauseSampling() override;
mozilla::ipc::IPCResult RecvResumeSampling() override;
mozilla::ipc::IPCResult RecvAwaitNextChunkManagerUpdate(
AwaitNextChunkManagerUpdateResolver&& aResolve) override;
mozilla::ipc::IPCResult RecvDestroyReleasedChunksAtOrBefore(
const TimeStamp& aTimeStamp) override;
mozilla::ipc::IPCResult RecvGatherProfile(
GatherProfileResolver&& aResolve) override;
mozilla::ipc::IPCResult RecvClearAllPages() override;
void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
FORWARD_SHMEM_ALLOCATOR_TO(PProfilerChild)
void SetupChunkManager();
void ResetChunkManager();
void ResolveChunkUpdate(
PProfilerChild::AwaitNextChunkManagerUpdateResolver& aResolve);
void ProcessChunkManagerUpdate(
ProfileBufferControlledChunkManager::Update&& aUpdate);
nsCOMPtr<nsIThread> mThread;
bool mDestroyed;
ProfileBufferControlledChunkManager* mChunkManager = nullptr;
AwaitNextChunkManagerUpdateResolver mAwaitNextChunkManagerUpdateResolver;
ProfileBufferControlledChunkManager::Update mChunkManagerUpdate;
struct ProfilerChildAndUpdate {
RefPtr<ProfilerChild> mProfilerChild;
ProfileBufferControlledChunkManager::Update mUpdate;
};
static DataMutexBase<ProfilerChildAndUpdate,
baseprofiler::detail::BaseProfilerMutex>
sPendingChunkManagerUpdate;
};
} // namespace mozilla
#endif // ProfilerChild_h
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