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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /gfx/ipc/GPUProcessHost.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/ipc/GPUProcessHost.cpp')
-rw-r--r-- | gfx/ipc/GPUProcessHost.cpp | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/gfx/ipc/GPUProcessHost.cpp b/gfx/ipc/GPUProcessHost.cpp new file mode 100644 index 0000000000..bc7237a0b9 --- /dev/null +++ b/gfx/ipc/GPUProcessHost.cpp @@ -0,0 +1,265 @@ +/* -*- 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 "GPUProcessHost.h" +#include "chrome/common/process_watcher.h" +#include "gfxPlatform.h" +#include "mozilla/dom/ContentParent.h" +#include "mozilla/gfx/GPUChild.h" +#include "mozilla/gfx/Logging.h" +#include "mozilla/layers/SynchronousTask.h" +#include "mozilla/Preferences.h" +#include "mozilla/StaticPrefs_layers.h" +#include "VRGPUChild.h" +#include "mozilla/ipc/ProcessUtils.h" +#ifdef MOZ_WIDGET_ANDROID +# include "mozilla/java/GeckoProcessManagerWrappers.h" +#endif + +namespace mozilla { +namespace gfx { + +using namespace ipc; + +GPUProcessHost::GPUProcessHost(Listener* aListener) + : GeckoChildProcessHost(GeckoProcessType_GPU), + mListener(aListener), + mTaskFactory(this), + mLaunchPhase(LaunchPhase::Unlaunched), + mProcessToken(0), + mShutdownRequested(false), + mChannelClosed(false) { + MOZ_COUNT_CTOR(GPUProcessHost); +} + +GPUProcessHost::~GPUProcessHost() { MOZ_COUNT_DTOR(GPUProcessHost); } + +bool GPUProcessHost::Launch(StringVector aExtraOpts) { + MOZ_ASSERT(mLaunchPhase == LaunchPhase::Unlaunched); + MOZ_ASSERT(!mGPUChild); + MOZ_ASSERT(!gfxPlatform::IsHeadless()); + + mPrefSerializer = MakeUnique<ipc::SharedPreferenceSerializer>(); + if (!mPrefSerializer->SerializeToSharedMemory(GeckoProcessType_GPU, + /* remoteType */ ""_ns)) { + return false; + } + mPrefSerializer->AddSharedPrefCmdLineArgs(*this, aExtraOpts); + +#if defined(XP_WIN) && defined(MOZ_SANDBOX) + mSandboxLevel = Preferences::GetInt("security.sandbox.gpu.level"); +#endif + + mLaunchPhase = LaunchPhase::Waiting; + mLaunchTime = TimeStamp::Now(); + + if (!GeckoChildProcessHost::AsyncLaunch(aExtraOpts)) { + mLaunchPhase = LaunchPhase::Complete; + mPrefSerializer = nullptr; + return false; + } + return true; +} + +bool GPUProcessHost::WaitForLaunch() { + if (mLaunchPhase == LaunchPhase::Complete) { + return !!mGPUChild; + } + + int32_t timeoutMs = + StaticPrefs::layers_gpu_process_startup_timeout_ms_AtStartup(); + + // If one of the following environment variables are set we can effectively + // ignore the timeout - as we can guarantee the compositor process will be + // terminated + if (PR_GetEnv("MOZ_DEBUG_CHILD_PROCESS") || + PR_GetEnv("MOZ_DEBUG_CHILD_PAUSE")) { + timeoutMs = 0; + } + + // Our caller expects the connection to be finished after we return, so we + // immediately set up the IPDL actor and fire callbacks. The IO thread will + // still dispatch a notification to the main thread - we'll just ignore it. + bool result = GeckoChildProcessHost::WaitUntilConnected(timeoutMs); + InitAfterConnect(result); + return result; +} + +void GPUProcessHost::OnChannelConnected(base::ProcessId peer_pid) { + MOZ_ASSERT(!NS_IsMainThread()); + + GeckoChildProcessHost::OnChannelConnected(peer_pid); + + // Post a task to the main thread. Take the lock because mTaskFactory is not + // thread-safe. + RefPtr<Runnable> runnable; + { + MonitorAutoLock lock(mMonitor); + runnable = + mTaskFactory.NewRunnableMethod(&GPUProcessHost::OnChannelConnectedTask); + } + NS_DispatchToMainThread(runnable); +} + +void GPUProcessHost::OnChannelError() { + MOZ_ASSERT(!NS_IsMainThread()); + + GeckoChildProcessHost::OnChannelError(); + + // Post a task to the main thread. Take the lock because mTaskFactory is not + // thread-safe. + RefPtr<Runnable> runnable; + { + MonitorAutoLock lock(mMonitor); + runnable = + mTaskFactory.NewRunnableMethod(&GPUProcessHost::OnChannelErrorTask); + } + NS_DispatchToMainThread(runnable); +} + +void GPUProcessHost::OnChannelConnectedTask() { + if (mLaunchPhase == LaunchPhase::Waiting) { + InitAfterConnect(true); + } +} + +void GPUProcessHost::OnChannelErrorTask() { + if (mLaunchPhase == LaunchPhase::Waiting) { + InitAfterConnect(false); + } +} + +static uint64_t sProcessTokenCounter = 0; + +void GPUProcessHost::InitAfterConnect(bool aSucceeded) { + MOZ_ASSERT(mLaunchPhase == LaunchPhase::Waiting); + MOZ_ASSERT(!mGPUChild); + + mLaunchPhase = LaunchPhase::Complete; + mPrefSerializer = nullptr; + + if (aSucceeded) { + mProcessToken = ++sProcessTokenCounter; + mGPUChild = MakeRefPtr<GPUChild>(this); + DebugOnly<bool> rv = TakeInitialEndpoint().Bind(mGPUChild.get()); + MOZ_ASSERT(rv); + + mGPUChild->Init(); + +#ifdef MOZ_WIDGET_ANDROID + nsCOMPtr<nsIEventTarget> launcherThread(GetIPCLauncher()); + MOZ_ASSERT(launcherThread); + layers::SynchronousTask task( + "GeckoProcessManager::GetCompositorSurfaceManager"); + + launcherThread->Dispatch(NS_NewRunnableFunction( + "GeckoProcessManager::GetCompositorSurfaceManager", [&]() { + layers::AutoCompleteTask complete(&task); + mCompositorSurfaceManager = + java::GeckoProcessManager::GetCompositorSurfaceManager(); + })); + + task.Wait(); +#endif + } + + if (mListener) { + mListener->OnProcessLaunchComplete(this); + } +} + +void GPUProcessHost::Shutdown(bool aUnexpectedShutdown) { + MOZ_ASSERT(!mShutdownRequested); + + mListener = nullptr; + + if (mGPUChild) { + // OnChannelClosed uses this to check if the shutdown was expected or + // unexpected. + mShutdownRequested = true; + + if (aUnexpectedShutdown) { + mGPUChild->OnUnexpectedShutdown(); + } + + // The channel might already be closed if we got here unexpectedly. + if (!mChannelClosed) { + if (VRGPUChild::IsCreated()) { + VRGPUChild::Get()->Close(); + } + mGPUChild->SendShutdownVR(); + mGPUChild->Close(); + } + +#ifndef NS_FREE_PERMANENT_DATA + // No need to communicate shutdown, the GPU process doesn't need to + // communicate anything back. + KillHard("NormalShutdown"); +#endif + + // If we're shutting down unexpectedly, we're in the middle of handling an + // ActorDestroy for PGPUChild, which is still on the stack. We'll return + // back to OnChannelClosed. + // + // Otherwise, we'll wait for OnChannelClose to be called whenever PGPUChild + // acknowledges shutdown. + return; + } + + DestroyProcess(); +} + +void GPUProcessHost::OnChannelClosed() { + mChannelClosed = true; + + if (!mShutdownRequested && mListener) { + // This is an unclean shutdown. Notify our listener that we're going away. + mListener->OnProcessUnexpectedShutdown(this); + } else { + DestroyProcess(); + } + + // Release the actor. + GPUChild::Destroy(std::move(mGPUChild)); + MOZ_ASSERT(!mGPUChild); +} + +void GPUProcessHost::KillHard(const char* aReason) { + ProcessHandle handle = GetChildProcessHandle(); + if (!base::KillProcess(handle, base::PROCESS_END_KILLED_BY_USER)) { + NS_WARNING("failed to kill subprocess!"); + } + + SetAlreadyDead(); +} + +uint64_t GPUProcessHost::GetProcessToken() const { return mProcessToken; } + +void GPUProcessHost::KillProcess() { KillHard("DiagnosticKill"); } + +void GPUProcessHost::CrashProcess() { mGPUChild->SendCrashProcess(); } + +void GPUProcessHost::DestroyProcess() { + // Cancel all tasks. We don't want anything triggering after our caller + // expects this to go away. + { + MonitorAutoLock lock(mMonitor); + mTaskFactory.RevokeAll(); + } + + GetCurrentSerialEventTarget()->Dispatch( + NS_NewRunnableFunction("DestroyProcessRunnable", [this] { Destroy(); })); +} + +#ifdef MOZ_WIDGET_ANDROID +java::CompositorSurfaceManager::Param +GPUProcessHost::GetCompositorSurfaceManager() { + return mCompositorSurfaceManager; +} +#endif + +} // namespace gfx +} // namespace mozilla |