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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 GFX_VR_PROCESS_MANAGER_H
#define GFX_VR_PROCESS_MANAGER_H
#include "VRProcessParent.h"
#include "mozilla/ipc/ProtocolUtils.h"
#include "nsIObserver.h"
namespace mozilla {
class MemoryReportingProcess;
namespace ipc {
template <typename T>
class Endpoint;
}
namespace gfx {
class VRManagerChild;
class PVRGPUChild;
class VRChild;
// The VRProcessManager is a singleton responsible for creating VR-bound
// objects that may live in another process.
class VRProcessManager final : public VRProcessParent::Listener {
public:
static VRProcessManager* Get();
static void Initialize();
static void Shutdown();
~VRProcessManager();
// If not using a VR process, launch a new VR process asynchronously.
void LaunchVRProcess();
// Ensure that VR-bound methods can be used. If no VR process is being
// used, or one is launched and ready, this function returns immediately.
// Otherwise it blocks until the VR process has finished launching.
bool EnsureVRReady();
bool CreateGPUBridges(base::ProcessId aOtherProcess,
mozilla::ipc::Endpoint<PVRGPUChild>* aOutVRBridge);
VRChild* GetVRChild();
// If a VR process is present, create a MemoryReportingProcess object.
// Otherwise, return null.
RefPtr<MemoryReportingProcess> GetProcessMemoryReporter();
virtual void OnProcessLaunchComplete(VRProcessParent* aParent) override;
virtual void OnProcessUnexpectedShutdown(VRProcessParent* aParent) override;
private:
VRProcessManager();
DISALLOW_COPY_AND_ASSIGN(VRProcessManager);
bool CreateGPUVRManager(base::ProcessId aOtherProcess,
mozilla::ipc::Endpoint<PVRGPUChild>* aOutEndpoint);
void OnXPCOMShutdown();
void OnPreferenceChange(const char16_t* aData);
void CleanShutdown();
void DestroyProcess();
// Permanently disable the VR process and record a message why.
void DisableVRProcess(const char* aMessage);
class Observer final : public nsIObserver {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
explicit Observer(VRProcessManager* aManager);
protected:
~Observer() = default;
VRProcessManager* mManager;
};
friend class Observer;
RefPtr<Observer> mObserver;
VRProcessParent* mProcess;
VRChild* mVRChild;
// Collects any pref changes that occur during process launch (after
// the initial map is passed in command-line arguments) to be sent
// when the process can receive IPC messages.
nsTArray<mozilla::dom::Pref> mQueuedPrefs;
};
} // namespace gfx
} // namespace mozilla
#endif // GFX_VR_PROCESS_MANAGER_H
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