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Diffstat (limited to '')
| -rw-r--r-- | dom/media/ipc/RDDChild.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/dom/media/ipc/RDDChild.cpp b/dom/media/ipc/RDDChild.cpp new file mode 100644 index 0000000000..b6e38ff828 --- /dev/null +++ b/dom/media/ipc/RDDChild.cpp @@ -0,0 +1,187 @@ +/* -*- 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/. */ +#include "RDDChild.h" + +#include "mozilla/FOGIPC.h" +#include "mozilla/RDDProcessManager.h" +#include "mozilla/dom/ContentParent.h" +#include "mozilla/dom/MemoryReportRequest.h" +#include "mozilla/gfx/GPUProcessManager.h" +#include "mozilla/gfx/gfxVars.h" +#include "mozilla/ipc/CrashReporterHost.h" +#include "mozilla/ipc/Endpoint.h" + +#if defined(XP_LINUX) && defined(MOZ_SANDBOX) +# include "mozilla/SandboxBroker.h" +# include "mozilla/SandboxBrokerPolicyFactory.h" +#endif + +#include "mozilla/Telemetry.h" + +#if defined(XP_WIN) +# include "mozilla/WinDllServices.h" +#endif + +#include "ProfilerParent.h" +#include "RDDProcessHost.h" + +namespace mozilla { + +using namespace layers; +using namespace gfx; + +RDDChild::RDDChild(RDDProcessHost* aHost) : mHost(aHost) { + MOZ_COUNT_CTOR(RDDChild); +} + +RDDChild::~RDDChild() { MOZ_COUNT_DTOR(RDDChild); } + +bool RDDChild::Init() { + Maybe<FileDescriptor> brokerFd; + +#if defined(XP_LINUX) && defined(MOZ_SANDBOX) + auto policy = SandboxBrokerPolicyFactory::GetRDDPolicy(OtherPid()); + if (policy != nullptr) { + brokerFd = Some(FileDescriptor()); + mSandboxBroker = + SandboxBroker::Create(std::move(policy), OtherPid(), brokerFd.ref()); + // This is unlikely to fail and probably indicates OS resource + // exhaustion, but we can at least try to recover. + if (NS_WARN_IF(mSandboxBroker == nullptr)) { + return false; + } + MOZ_ASSERT(brokerFd.ref().IsValid()); + } +#endif // XP_LINUX && MOZ_SANDBOX + + nsTArray<GfxVarUpdate> updates = gfxVars::FetchNonDefaultVars(); + + bool isReadyForBackgroundProcessing = false; +#if defined(XP_WIN) + RefPtr<DllServices> dllSvc(DllServices::Get()); + isReadyForBackgroundProcessing = dllSvc->IsReadyForBackgroundProcessing(); +#endif + + SendInit(updates, brokerFd, Telemetry::CanRecordReleaseData(), + isReadyForBackgroundProcessing); + + Unused << SendInitProfiler(ProfilerParent::CreateForProcess(OtherPid())); + + gfxVars::AddReceiver(this); + auto* gpm = gfx::GPUProcessManager::Get(); + if (gpm) { + gpm->AddListener(this); + } + + return true; +} + +bool RDDChild::SendRequestMemoryReport(const uint32_t& aGeneration, + const bool& aAnonymize, + const bool& aMinimizeMemoryUsage, + const Maybe<FileDescriptor>& aDMDFile) { + mMemoryReportRequest = MakeUnique<MemoryReportRequestHost>(aGeneration); + + PRDDChild::SendRequestMemoryReport( + aGeneration, aAnonymize, aMinimizeMemoryUsage, aDMDFile, + [&](const uint32_t& aGeneration2) { + if (RDDProcessManager* rddpm = RDDProcessManager::Get()) { + if (RDDChild* child = rddpm->GetRDDChild()) { + if (child->mMemoryReportRequest) { + child->mMemoryReportRequest->Finish(aGeneration2); + child->mMemoryReportRequest = nullptr; + } + } + } + }, + [&](mozilla::ipc::ResponseRejectReason) { + if (RDDProcessManager* rddpm = RDDProcessManager::Get()) { + if (RDDChild* child = rddpm->GetRDDChild()) { + child->mMemoryReportRequest = nullptr; + } + } + }); + + return true; +} + +void RDDChild::OnCompositorUnexpectedShutdown() { + auto* rddm = RDDProcessManager::Get(); + if (rddm) { + rddm->CreateVideoBridge(); + } +} + +void RDDChild::OnVarChanged(const GfxVarUpdate& aVar) { SendUpdateVar(aVar); } + +mozilla::ipc::IPCResult RDDChild::RecvAddMemoryReport( + const MemoryReport& aReport) { + if (mMemoryReportRequest) { + mMemoryReportRequest->RecvReport(aReport); + } + return IPC_OK(); +} + +#if defined(XP_WIN) +mozilla::ipc::IPCResult RDDChild::RecvGetModulesTrust( + ModulePaths&& aModPaths, bool aRunAtNormalPriority, + GetModulesTrustResolver&& aResolver) { + RefPtr<DllServices> dllSvc(DllServices::Get()); + dllSvc->GetModulesTrust(std::move(aModPaths), aRunAtNormalPriority) + ->Then( + GetMainThreadSerialEventTarget(), __func__, + [aResolver](ModulesMapResult&& aResult) { + aResolver(Some(ModulesMapResult(std::move(aResult)))); + }, + [aResolver](nsresult aRv) { aResolver(Nothing()); }); + return IPC_OK(); +} +#endif // defined(XP_WIN) + +mozilla::ipc::IPCResult RDDChild::RecvUpdateMediaCodecsSupported( + const media::MediaCodecsSupported& aSupported) { + dom::ContentParent::BroadcastMediaCodecsSupportedUpdate( + RemoteDecodeIn::RddProcess, aSupported); + return IPC_OK(); +} + +mozilla::ipc::IPCResult RDDChild::RecvFOGData(ByteBuf&& aBuf) { + glean::FOGData(std::move(aBuf)); + return IPC_OK(); +} + +void RDDChild::ActorDestroy(ActorDestroyReason aWhy) { + if (aWhy == AbnormalShutdown) { + GenerateCrashReport(OtherPid()); + } + + auto* gpm = gfx::GPUProcessManager::Get(); + if (gpm) { + // Note: the manager could have shutdown already. + gpm->RemoveListener(this); + } + + gfxVars::RemoveReceiver(this); + mHost->OnChannelClosed(); +} + +class DeferredDeleteRDDChild : public Runnable { + public: + explicit DeferredDeleteRDDChild(UniquePtr<RDDChild>&& aChild) + : Runnable("gfx::DeferredDeleteRDDChild"), mChild(std::move(aChild)) {} + + NS_IMETHODIMP Run() override { return NS_OK; } + + private: + UniquePtr<RDDChild> mChild; +}; + +/* static */ +void RDDChild::Destroy(UniquePtr<RDDChild>&& aChild) { + NS_DispatchToMainThread(new DeferredDeleteRDDChild(std::move(aChild))); +} + +} // namespace mozilla |