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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/. */
#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"
#include "mozilla/TelemetryIPC.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) {}
RDDChild::~RDDChild() = default;
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::RecvAccumulateChildHistograms(
nsTArray<HistogramAccumulation>&& aAccumulations) {
TelemetryIPC::AccumulateChildHistograms(Telemetry::ProcessID::Rdd,
aAccumulations);
return IPC_OK();
}
mozilla::ipc::IPCResult RDDChild::RecvAccumulateChildKeyedHistograms(
nsTArray<KeyedHistogramAccumulation>&& aAccumulations) {
TelemetryIPC::AccumulateChildKeyedHistograms(Telemetry::ProcessID::Rdd,
aAccumulations);
return IPC_OK();
}
mozilla::ipc::IPCResult RDDChild::RecvUpdateChildScalars(
nsTArray<ScalarAction>&& aScalarActions) {
TelemetryIPC::UpdateChildScalars(Telemetry::ProcessID::Rdd, aScalarActions);
return IPC_OK();
}
mozilla::ipc::IPCResult RDDChild::RecvUpdateChildKeyedScalars(
nsTArray<KeyedScalarAction>&& aScalarActions) {
TelemetryIPC::UpdateChildKeyedScalars(Telemetry::ProcessID::Rdd,
aScalarActions);
return IPC_OK();
}
mozilla::ipc::IPCResult RDDChild::RecvRecordChildEvents(
nsTArray<mozilla::Telemetry::ChildEventData>&& aEvents) {
TelemetryIPC::RecordChildEvents(Telemetry::ProcessID::Rdd, aEvents);
return IPC_OK();
}
mozilla::ipc::IPCResult RDDChild::RecvRecordDiscardedData(
const mozilla::Telemetry::DiscardedData& aDiscardedData) {
TelemetryIPC::RecordDiscardedData(Telemetry::ProcessID::Rdd, aDiscardedData);
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(RefPtr<RDDChild>&& aChild)
: Runnable("gfx::DeferredDeleteRDDChild"), mChild(std::move(aChild)) {}
NS_IMETHODIMP Run() override { return NS_OK; }
private:
RefPtr<RDDChild> mChild;
};
/* static */
void RDDChild::Destroy(RefPtr<RDDChild>&& aChild) {
NS_DispatchToMainThread(new DeferredDeleteRDDChild(std::move(aChild)));
}
} // namespace mozilla
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