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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/child/child_thread_impl.h" | 5 #include "content/child/child_thread_impl.h" |
| 6 | 6 |
| 7 #include <signal.h> | 7 #include <signal.h> |
| 8 #include <string> | 8 #include <string> |
| 9 #include <utility> | 9 #include <utility> |
| 10 | 10 |
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| 49 #include "content/child/resource_dispatcher.h" | 49 #include "content/child/resource_dispatcher.h" |
| 50 #include "content/child/service_worker/service_worker_message_filter.h" | 50 #include "content/child/service_worker/service_worker_message_filter.h" |
| 51 #include "content/child/thread_safe_sender.h" | 51 #include "content/child/thread_safe_sender.h" |
| 52 #include "content/common/child_process_messages.h" | 52 #include "content/common/child_process_messages.h" |
| 53 #include "content/common/in_process_child_thread_params.h" | 53 #include "content/common/in_process_child_thread_params.h" |
| 54 #include "content/public/common/connection_filter.h" | 54 #include "content/public/common/connection_filter.h" |
| 55 #include "content/public/common/content_switches.h" | 55 #include "content/public/common/content_switches.h" |
| 56 #include "content/public/common/mojo_channel_switches.h" | 56 #include "content/public/common/mojo_channel_switches.h" |
| 57 #include "content/public/common/service_manager_connection.h" | 57 #include "content/public/common/service_manager_connection.h" |
| 58 #include "content/public/common/service_names.h" | 58 #include "content/public/common/service_names.h" |
| 59 #include "ipc/attachment_broker.h" | |
| 60 #include "ipc/attachment_broker_unprivileged.h" | |
| 61 #include "ipc/ipc_channel_mojo.h" | 59 #include "ipc/ipc_channel_mojo.h" |
| 62 #include "ipc/ipc_logging.h" | 60 #include "ipc/ipc_logging.h" |
| 63 #include "ipc/ipc_platform_file.h" | 61 #include "ipc/ipc_platform_file.h" |
| 64 #include "ipc/ipc_sync_channel.h" | 62 #include "ipc/ipc_sync_channel.h" |
| 65 #include "ipc/ipc_sync_message_filter.h" | 63 #include "ipc/ipc_sync_message_filter.h" |
| 66 #include "mojo/edk/embedder/embedder.h" | 64 #include "mojo/edk/embedder/embedder.h" |
| 67 #include "mojo/edk/embedder/named_platform_channel_pair.h" | 65 #include "mojo/edk/embedder/named_platform_channel_pair.h" |
| 68 #include "mojo/edk/embedder/platform_channel_pair.h" | 66 #include "mojo/edk/embedder/platform_channel_pair.h" |
| 69 #include "mojo/edk/embedder/scoped_ipc_support.h" | 67 #include "mojo/edk/embedder/scoped_ipc_support.h" |
| 70 #include "services/service_manager/public/cpp/connector.h" | 68 #include "services/service_manager/public/cpp/connector.h" |
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| 417 g_lazy_tls.Pointer()->Set(this); | 415 g_lazy_tls.Pointer()->Set(this); |
| 418 on_channel_error_called_ = false; | 416 on_channel_error_called_ = false; |
| 419 message_loop_ = base::MessageLoop::current(); | 417 message_loop_ = base::MessageLoop::current(); |
| 420 #ifdef IPC_MESSAGE_LOG_ENABLED | 418 #ifdef IPC_MESSAGE_LOG_ENABLED |
| 421 // We must make sure to instantiate the IPC Logger *before* we create the | 419 // We must make sure to instantiate the IPC Logger *before* we create the |
| 422 // channel, otherwise we can get a callback on the IO thread which creates | 420 // channel, otherwise we can get a callback on the IO thread which creates |
| 423 // the logger, and the logger does not like being created on the IO thread. | 421 // the logger, and the logger does not like being created on the IO thread. |
| 424 IPC::Logging::GetInstance(); | 422 IPC::Logging::GetInstance(); |
| 425 #endif | 423 #endif |
| 426 | 424 |
| 427 IPC::AttachmentBrokerUnprivileged::CreateBrokerIfNeeded(); | |
| 428 | |
| 429 channel_ = | 425 channel_ = |
| 430 IPC::SyncChannel::Create(this, ChildProcess::current()->io_task_runner(), | 426 IPC::SyncChannel::Create(this, ChildProcess::current()->io_task_runner(), |
| 431 ChildProcess::current()->GetShutDownEvent()); | 427 ChildProcess::current()->GetShutDownEvent()); |
| 432 #ifdef IPC_MESSAGE_LOG_ENABLED | 428 #ifdef IPC_MESSAGE_LOG_ENABLED |
| 433 if (!IsInBrowserProcess()) | 429 if (!IsInBrowserProcess()) |
| 434 IPC::Logging::GetInstance()->SetIPCSender(this); | 430 IPC::Logging::GetInstance()->SetIPCSender(this); |
| 435 #endif | 431 #endif |
| 436 | 432 |
| 437 if (!IsInBrowserProcess()) { | 433 if (!IsInBrowserProcess()) { |
| 438 // Don't double-initialize IPC support in single-process mode. | 434 // Don't double-initialize IPC support in single-process mode. |
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| 528 // and single-process mode. | 524 // and single-process mode. |
| 529 if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessType)) | 525 if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessType)) |
| 530 channel_->AddFilter(new SuicideOnChannelErrorFilter()); | 526 channel_->AddFilter(new SuicideOnChannelErrorFilter()); |
| 531 #endif | 527 #endif |
| 532 | 528 |
| 533 // Add filters passed here via options. | 529 // Add filters passed here via options. |
| 534 for (auto* startup_filter : options.startup_filters) { | 530 for (auto* startup_filter : options.startup_filters) { |
| 535 channel_->AddFilter(startup_filter); | 531 channel_->AddFilter(startup_filter); |
| 536 } | 532 } |
| 537 | 533 |
| 538 IPC::AttachmentBroker* broker = IPC::AttachmentBroker::GetGlobal(); | |
| 539 if (broker && !broker->IsPrivilegedBroker()) | |
| 540 broker->RegisterBrokerCommunicationChannel(channel_.get()); | |
| 541 | |
| 542 channel_->AddAssociatedInterface( | 534 channel_->AddAssociatedInterface( |
| 543 base::Bind(&ChildThreadImpl::OnRouteProviderRequest, | 535 base::Bind(&ChildThreadImpl::OnRouteProviderRequest, |
| 544 base::Unretained(this))); | 536 base::Unretained(this))); |
| 545 | 537 |
| 546 ConnectChannel(); | 538 ConnectChannel(); |
| 547 | 539 |
| 548 // This must always be done after ConnectChannel, because ConnectChannel() may | 540 // This must always be done after ConnectChannel, because ConnectChannel() may |
| 549 // add a ConnectionFilter to the connection. | 541 // add a ConnectionFilter to the connection. |
| 550 if (options.auto_start_service_manager_connection && | 542 if (options.auto_start_service_manager_connection && |
| 551 service_manager_connection_) { | 543 service_manager_connection_) { |
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| 576 | 568 |
| 577 discardable_shared_memory_manager_.reset( | 569 discardable_shared_memory_manager_.reset( |
| 578 new ChildDiscardableSharedMemoryManager(thread_safe_sender())); | 570 new ChildDiscardableSharedMemoryManager(thread_safe_sender())); |
| 579 } | 571 } |
| 580 | 572 |
| 581 ChildThreadImpl::~ChildThreadImpl() { | 573 ChildThreadImpl::~ChildThreadImpl() { |
| 582 #ifdef IPC_MESSAGE_LOG_ENABLED | 574 #ifdef IPC_MESSAGE_LOG_ENABLED |
| 583 IPC::Logging::GetInstance()->SetIPCSender(NULL); | 575 IPC::Logging::GetInstance()->SetIPCSender(NULL); |
| 584 #endif | 576 #endif |
| 585 | 577 |
| 586 IPC::AttachmentBroker* broker = IPC::AttachmentBroker::GetGlobal(); | |
| 587 if (broker && !broker->IsPrivilegedBroker()) | |
| 588 broker->DeregisterBrokerCommunicationChannel(channel_.get()); | |
| 589 | |
| 590 channel_->RemoveFilter(histogram_message_filter_.get()); | 578 channel_->RemoveFilter(histogram_message_filter_.get()); |
| 591 channel_->RemoveFilter(sync_message_filter_.get()); | 579 channel_->RemoveFilter(sync_message_filter_.get()); |
| 592 | 580 |
| 593 // The ChannelProxy object caches a pointer to the IPC thread, so need to | 581 // The ChannelProxy object caches a pointer to the IPC thread, so need to |
| 594 // reset it as it's not guaranteed to outlive this object. | 582 // reset it as it's not guaranteed to outlive this object. |
| 595 // NOTE: this also has the side-effect of not closing the main IPC channel to | 583 // NOTE: this also has the side-effect of not closing the main IPC channel to |
| 596 // the browser process. This is needed because this is the signal that the | 584 // the browser process. This is needed because this is the signal that the |
| 597 // browser uses to know that this process has died, so we need it to be alive | 585 // browser uses to know that this process has died, so we need it to be alive |
| 598 // until this process is shut down, and the OS closes the handle | 586 // until this process is shut down, and the OS closes the handle |
| 599 // automatically. We used to watch the object handle on Windows to do this, | 587 // automatically. We used to watch the object handle on Windows to do this, |
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| 864 Listener* route = router_.GetRoute(routing_id); | 852 Listener* route = router_.GetRoute(routing_id); |
| 865 if (route) | 853 if (route) |
| 866 route->OnAssociatedInterfaceRequest(name, request.PassHandle()); | 854 route->OnAssociatedInterfaceRequest(name, request.PassHandle()); |
| 867 } | 855 } |
| 868 | 856 |
| 869 bool ChildThreadImpl::IsInBrowserProcess() const { | 857 bool ChildThreadImpl::IsInBrowserProcess() const { |
| 870 return static_cast<bool>(browser_process_io_runner_); | 858 return static_cast<bool>(browser_process_io_runner_); |
| 871 } | 859 } |
| 872 | 860 |
| 873 } // namespace content | 861 } // namespace content |
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