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Diffstat (limited to '')
-rw-r--r-- | gfx/vr/ipc/VRProcessManager.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/gfx/vr/ipc/VRProcessManager.h b/gfx/vr/ipc/VRProcessManager.h new file mode 100644 index 0000000000..030045d300 --- /dev/null +++ b/gfx/vr/ipc/VRProcessManager.h @@ -0,0 +1,95 @@ +/* -*- 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 |