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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/worker/worker_thread.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/lazy_instance.h" | |
| 9 #include "base/threading/thread_local.h" | |
| 10 #include "content/child/appcache/appcache_dispatcher.h" | |
| 11 #include "content/child/appcache/appcache_frontend_impl.h" | |
| 12 #include "content/child/db_message_filter.h" | |
| 13 #include "content/child/indexed_db/indexed_db_message_filter.h" | |
| 14 #include "content/child/runtime_features.h" | |
| 15 #include "content/child/web_database_observer_impl.h" | |
| 16 #include "content/common/child_process_messages.h" | |
| 17 #include "content/common/worker_messages.h" | |
| 18 #include "content/public/common/content_switches.h" | |
| 19 #include "content/worker/websharedworker_stub.h" | |
| 20 #include "content/worker/worker_webkitplatformsupport_impl.h" | |
| 21 #include "ipc/ipc_sync_channel.h" | |
| 22 #include "third_party/WebKit/public/platform/WebBlobRegistry.h" | |
| 23 #include "third_party/WebKit/public/web/WebDatabase.h" | |
| 24 #include "third_party/WebKit/public/web/WebKit.h" | |
| 25 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h" | |
| 26 #include "v8/include/v8.h" | |
| 27 | |
| 28 using blink::WebRuntimeFeatures; | |
| 29 | |
| 30 namespace content { | |
| 31 | |
| 32 static base::LazyInstance<base::ThreadLocalPointer<WorkerThread> > lazy_tls = | |
| 33 LAZY_INSTANCE_INITIALIZER; | |
| 34 | |
| 35 WorkerThread::WorkerThread() { | |
| 36 lazy_tls.Pointer()->Set(this); | |
| 37 webkit_platform_support_.reset(new WorkerWebKitPlatformSupportImpl( | |
| 38 thread_safe_sender(), | |
| 39 sync_message_filter(), | |
| 40 quota_message_filter())); | |
| 41 | |
| 42 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
| 43 if (command_line.HasSwitch(switches::kJavaScriptFlags)) { | |
| 44 std::string flags( | |
| 45 command_line.GetSwitchValueASCII(switches::kJavaScriptFlags)); | |
| 46 v8::V8::SetFlagsFromString(flags.c_str(), static_cast<int>(flags.size())); | |
| 47 } | |
| 48 SetRuntimeFeaturesDefaultsAndUpdateFromArgs(command_line); | |
| 49 | |
| 50 blink::initialize(webkit_platform_support_.get()); | |
| 51 | |
| 52 appcache_dispatcher_.reset( | |
| 53 new AppCacheDispatcher(this, new AppCacheFrontendImpl())); | |
| 54 | |
| 55 db_message_filter_ = new DBMessageFilter(); | |
| 56 channel()->AddFilter(db_message_filter_.get()); | |
| 57 | |
| 58 indexed_db_message_filter_ = new IndexedDBMessageFilter( | |
| 59 thread_safe_sender()); | |
| 60 channel()->AddFilter(indexed_db_message_filter_->GetFilter()); | |
| 61 | |
| 62 } | |
| 63 | |
| 64 void WorkerThread::OnShutdown() { | |
| 65 // The worker process is to be shut down gracefully. Ask the browser | |
| 66 // process to shut it down forcefully instead and wait on the message, so that | |
| 67 // there are no races between threads when the process is shutting down. | |
| 68 Send(new WorkerProcessHostMsg_ForceKillWorker()); | |
| 69 } | |
| 70 | |
| 71 WorkerThread::~WorkerThread() { | |
| 72 } | |
| 73 | |
| 74 void WorkerThread::Shutdown() { | |
| 75 ChildThread::Shutdown(); | |
| 76 | |
| 77 if (webkit_platform_support_) { | |
| 78 webkit_platform_support_->web_database_observer_impl()-> | |
| 79 WaitForAllDatabasesToClose(); | |
| 80 } | |
| 81 | |
| 82 // Shutdown in reverse of the initialization order. | |
| 83 indexed_db_message_filter_ = NULL; | |
| 84 | |
| 85 channel()->RemoveFilter(db_message_filter_.get()); | |
| 86 db_message_filter_ = NULL; | |
| 87 | |
| 88 blink::shutdown(); | |
| 89 lazy_tls.Pointer()->Set(NULL); | |
| 90 } | |
| 91 | |
| 92 WorkerThread* WorkerThread::current() { | |
| 93 return lazy_tls.Pointer()->Get(); | |
| 94 } | |
| 95 | |
| 96 bool WorkerThread::OnControlMessageReceived(const IPC::Message& msg) { | |
| 97 // Appcache messages are handled by a delegate. | |
| 98 if (appcache_dispatcher_->OnMessageReceived(msg)) | |
| 99 return true; | |
| 100 | |
| 101 bool handled = true; | |
| 102 IPC_BEGIN_MESSAGE_MAP(WorkerThread, msg) | |
| 103 IPC_MESSAGE_HANDLER(WorkerProcessMsg_CreateWorker, OnCreateWorker) | |
| 104 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 105 IPC_END_MESSAGE_MAP() | |
| 106 return handled; | |
| 107 } | |
| 108 | |
| 109 bool WorkerThread::OnMessageReceived(const IPC::Message& msg) { | |
| 110 bool handled = true; | |
| 111 IPC_BEGIN_MESSAGE_MAP(WorkerThread, msg) | |
| 112 IPC_MESSAGE_HANDLER(ChildProcessMsg_Shutdown, OnShutdown) | |
| 113 IPC_MESSAGE_UNHANDLED(handled = ChildThread::OnMessageReceived(msg)) | |
| 114 IPC_END_MESSAGE_MAP() | |
| 115 return handled; | |
| 116 } | |
| 117 | |
| 118 void WorkerThread::OnCreateWorker( | |
| 119 const WorkerProcessMsg_CreateWorker_Params& params) { | |
| 120 // WebSharedWorkerStub own themselves. | |
| 121 new WebSharedWorkerStub( | |
| 122 params.url, | |
| 123 params.name, | |
| 124 params.content_security_policy, | |
| 125 params.security_policy_type, | |
| 126 params.pause_on_start, | |
| 127 params.route_id); | |
| 128 } | |
| 129 | |
| 130 // The browser process is likely dead. Terminate all workers. | |
| 131 void WorkerThread::OnChannelError() { | |
| 132 set_on_channel_error_called(true); | |
| 133 | |
| 134 for (WorkerStubsList::iterator it = worker_stubs_.begin(); | |
| 135 it != worker_stubs_.end(); ++it) { | |
| 136 (*it)->OnChannelError(); | |
| 137 } | |
| 138 } | |
| 139 | |
| 140 void WorkerThread::RemoveWorkerStub(WebSharedWorkerStub* stub) { | |
| 141 worker_stubs_.erase(stub); | |
| 142 } | |
| 143 | |
| 144 void WorkerThread::AddWorkerStub(WebSharedWorkerStub* stub) { | |
| 145 worker_stubs_.insert(stub); | |
| 146 } | |
| 147 | |
| 148 } // namespace content | |
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Chromium Code Reviews
Issue 411283002:
Remove disable-embedded-shared-worker flag and shared worker process related codes. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master