content/browser/service_worker/embedded_worker_registry.cc

   1 // Copyright 2013 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/browser/service_worker/embedded_worker_registry.h"
   6
   7 #include "base/bind_helpers.h"
   8 #include "base/stl_util.h"
   9 #include "content/browser/renderer_host/render_widget_helper.h"
  10 #include "content/browser/service_worker/embedded_worker_instance.h"
  11 #include "content/browser/service_worker/service_worker_context_core.h"
  12 #include "content/browser/service_worker/service_worker_context_wrapper.h"
  13 #include "content/common/service_worker/embedded_worker_messages.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "ipc/ipc_message.h"
  16 #include "ipc/ipc_sender.h"
  17
  18 namespace content {
  19
  20 // static
  21 scoped_refptr<EmbeddedWorkerRegistry> EmbeddedWorkerRegistry::Create(
  22     const base::WeakPtr<ServiceWorkerContextCore>& context) {
  23   return make_scoped_refptr(new EmbeddedWorkerRegistry(context, 0));
  24 }
  25
  26 // static
  27 scoped_refptr<EmbeddedWorkerRegistry> EmbeddedWorkerRegistry::Create(
  28     const base::WeakPtr<ServiceWorkerContextCore>& context,
  29     EmbeddedWorkerRegistry* old_registry) {
  30   scoped_refptr<EmbeddedWorkerRegistry> registry =
  31       new EmbeddedWorkerRegistry(
  32           context,
  33           old_registry->next_embedded_worker_id_);
  34   registry->process_sender_map_.swap(old_registry->process_sender_map_);
  35   return registry;
  36 }
  37
  38 scoped_ptr<EmbeddedWorkerInstance> EmbeddedWorkerRegistry::CreateWorker() {
  39   scoped_ptr<EmbeddedWorkerInstance> worker(
  40       new EmbeddedWorkerInstance(context_, next_embedded_worker_id_));
  41   worker_map_[next_embedded_worker_id_++] = worker.get();
  42   return worker.Pass();
  43 }
  44
  45 ServiceWorkerStatusCode EmbeddedWorkerRegistry::StopWorker(
  46     int process_id, int embedded_worker_id) {
  47   return Send(process_id,
  48               new EmbeddedWorkerMsg_StopWorker(embedded_worker_id));
  49 }
  50
  51 bool EmbeddedWorkerRegistry::OnMessageReceived(const IPC::Message& message,
  52                                                int process_id) {
  53   // TODO(kinuko): Move all EmbeddedWorker message handling from
  54   // ServiceWorkerDispatcherHost.
  55
  56   WorkerInstanceMap::iterator found = worker_map_.find(message.routing_id());
  57   DCHECK(found != worker_map_.end());
  58   if (found == worker_map_.end() || found->second->process_id() != process_id)
  59     return false;
  60   return found->second->OnMessageReceived(message);
  61 }
  62
  63 void EmbeddedWorkerRegistry::Shutdown() {
  64   for (WorkerInstanceMap::iterator it = worker_map_.begin();
  65        it != worker_map_.end();
  66        ++it) {
  67     it->second->Stop();
  68   }
  69 }
  70
  71 void EmbeddedWorkerRegistry::OnWorkerReadyForInspection(
  72     int process_id,
  73     int embedded_worker_id) {
  74   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  75   DCHECK(found != worker_map_.end());
  76   DCHECK_EQ(found->second->process_id(), process_id);
  77   if (found == worker_map_.end() || found->second->process_id() != process_id)
  78     return;
  79   found->second->OnReadyForInspection();
  80 }
  81
  82 void EmbeddedWorkerRegistry::OnWorkerScriptLoaded(int process_id,
  83                                                   int embedded_worker_id) {
  84   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  85   DCHECK(found != worker_map_.end());
  86   DCHECK_EQ(found->second->process_id(), process_id);
  87   if (found == worker_map_.end() || found->second->process_id() != process_id)
  88     return;
  89   found->second->OnScriptLoaded();
  90 }
  91
  92 void EmbeddedWorkerRegistry::OnWorkerThreadStarted(int process_id,
  93                                                    int thread_id,
  94                                                    int embedded_worker_id) {
  95   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  96   DCHECK(found != worker_map_.end());
  97   DCHECK_EQ(found->second->process_id(), process_id);
  98   if (found == worker_map_.end() || found->second->process_id() != process_id)
  99     return;
 100   found->second->OnThreadStarted(thread_id);
 101 }
 102
 103 void EmbeddedWorkerRegistry::OnWorkerScriptLoadFailed(int process_id,
 104                                                       int embedded_worker_id) {
 105   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 106   DCHECK(found != worker_map_.end());
 107   DCHECK_EQ(found->second->process_id(), process_id);
 108   if (found == worker_map_.end() || found->second->process_id() != process_id)
 109     return;
 110   found->second->OnScriptLoadFailed();
 111 }
 112
 113 void EmbeddedWorkerRegistry::OnWorkerScriptEvaluated(int process_id,
 114                                                      int embedded_worker_id,
 115                                                      bool success) {
 116   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 117   DCHECK(found != worker_map_.end());
 118   DCHECK_EQ(found->second->process_id(), process_id);
 119   if (found == worker_map_.end() || found->second->process_id() != process_id)
 120     return;
 121   found->second->OnScriptEvaluated(success);
 122 }
 123
 124 void EmbeddedWorkerRegistry::OnWorkerStarted(
 125     int process_id, int embedded_worker_id) {
 126   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 127   // TODO(falken): Instead of DCHECK, we should terminate the process on
 128   // unexpected message. Same with most of the DCHECKs in this file.
 129   DCHECK(found != worker_map_.end());
 130   DCHECK_EQ(found->second->process_id(), process_id);
 131   if (found == worker_map_.end() || found->second->process_id() != process_id)
 132     return;
 133
 134   DCHECK(ContainsKey(worker_process_map_, process_id) &&
 135          worker_process_map_[process_id].count(embedded_worker_id) == 1);
 136   if (!ContainsKey(worker_process_map_, process_id) ||
 137       worker_process_map_[process_id].count(embedded_worker_id) == 0) {
 138     return;
 139   }
 140
 141   found->second->OnStarted();
 142 }
 143
 144 void EmbeddedWorkerRegistry::OnWorkerStopped(
 145     int process_id, int embedded_worker_id) {
 146   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 147   DCHECK(found != worker_map_.end());
 148   DCHECK_EQ(found->second->process_id(), process_id);
 149   if (found == worker_map_.end() || found->second->process_id() != process_id)
 150     return;
 151   worker_process_map_[process_id].erase(embedded_worker_id);
 152   found->second->OnStopped();
 153 }
 154
 155 void EmbeddedWorkerRegistry::OnReportException(
 156     int embedded_worker_id,
 157     const base::string16& error_message,
 158     int line_number,
 159     int column_number,
 160     const GURL& source_url) {
 161   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 162   DCHECK(found != worker_map_.end());
 163   if (found == worker_map_.end())
 164     return;
 165   found->second->OnReportException(
 166       error_message, line_number, column_number, source_url);
 167 }
 168
 169 void EmbeddedWorkerRegistry::OnReportConsoleMessage(
 170     int embedded_worker_id,
 171     int source_identifier,
 172     int message_level,
 173     const base::string16& message,
 174     int line_number,
 175     const GURL& source_url) {
 176   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 177   DCHECK(found != worker_map_.end());
 178   if (found == worker_map_.end())
 179     return;
 180   found->second->OnReportConsoleMessage(
 181       source_identifier, message_level, message, line_number, source_url);
 182 }
 183
 184 void EmbeddedWorkerRegistry::AddChildProcessSender(
 185     int process_id,
 186     IPC::Sender* sender,
 187     MessagePortMessageFilter* message_port_message_filter) {
 188   process_sender_map_[process_id] = sender;
 189   process_message_port_message_filter_map_[process_id] =
 190       message_port_message_filter;
 191   DCHECK(!ContainsKey(worker_process_map_, process_id));
 192 }
 193
 194 void EmbeddedWorkerRegistry::RemoveChildProcessSender(int process_id) {
 195   process_sender_map_.erase(process_id);
 196   process_message_port_message_filter_map_.erase(process_id);
 197   std::map<int, std::set<int> >::iterator found =
 198       worker_process_map_.find(process_id);
 199   if (found != worker_process_map_.end()) {
 200     const std::set<int>& worker_set = worker_process_map_[process_id];
 201     for (std::set<int>::const_iterator it = worker_set.begin();
 202          it != worker_set.end();
 203          ++it) {
 204       int embedded_worker_id = *it;
 205       DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 206       worker_map_[embedded_worker_id]->OnDetached();
 207     }
 208     worker_process_map_.erase(found);
 209   }
 210 }
 211
 212 EmbeddedWorkerInstance* EmbeddedWorkerRegistry::GetWorker(
 213     int embedded_worker_id) {
 214   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 215   if (found == worker_map_.end())
 216     return NULL;
 217   return found->second;
 218 }
 219
 220 bool EmbeddedWorkerRegistry::CanHandle(int embedded_worker_id) const {
 221   if (embedded_worker_id < initial_embedded_worker_id_ ||
 222       next_embedded_worker_id_ <= embedded_worker_id) {
 223     return false;
 224   }
 225   return true;
 226 }
 227
 228 MessagePortMessageFilter*
 229 EmbeddedWorkerRegistry::MessagePortMessageFilterForProcess(int process_id) {
 230   return process_message_port_message_filter_map_[process_id];
 231 }
 232
 233 EmbeddedWorkerRegistry::EmbeddedWorkerRegistry(
 234     const base::WeakPtr<ServiceWorkerContextCore>& context,
 235     int initial_embedded_worker_id)
 236     : context_(context),
 237       next_embedded_worker_id_(initial_embedded_worker_id),
 238       initial_embedded_worker_id_(initial_embedded_worker_id) {
 239 }
 240
 241 EmbeddedWorkerRegistry::~EmbeddedWorkerRegistry() {
 242   Shutdown();
 243 }
 244
 245 ServiceWorkerStatusCode EmbeddedWorkerRegistry::SendStartWorker(
 246     scoped_ptr<EmbeddedWorkerMsg_StartWorker_Params> params,
 247     int process_id) {
 248   if (!context_)
 249     return SERVICE_WORKER_ERROR_ABORT;
 250
 251   // The ServiceWorkerDispatcherHost is supposed to be created when the process
 252   // is created, and keep an entry in process_sender_map_ for its whole
 253   // lifetime.
 254   DCHECK(ContainsKey(process_sender_map_, process_id));
 255
 256   int embedded_worker_id = params->embedded_worker_id;
 257   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 258   DCHECK(found != worker_map_.end());
 259   DCHECK_EQ(found->second->process_id(), process_id);
 260
 261   DCHECK(!ContainsKey(worker_process_map_, process_id) ||
 262          worker_process_map_[process_id].count(embedded_worker_id) == 0);
 263
 264   ServiceWorkerStatusCode status =
 265       Send(process_id, new EmbeddedWorkerMsg_StartWorker(*params));
 266   if (status == SERVICE_WORKER_OK)
 267     worker_process_map_[process_id].insert(embedded_worker_id);
 268   return status;
 269 }
 270
 271 ServiceWorkerStatusCode EmbeddedWorkerRegistry::Send(
 272     int process_id, IPC::Message* message_ptr) {
 273   scoped_ptr<IPC::Message> message(message_ptr);
 274   if (!context_)
 275     return SERVICE_WORKER_ERROR_ABORT;
 276   ProcessToSenderMap::iterator found = process_sender_map_.find(process_id);
 277   if (found == process_sender_map_.end())
 278     return SERVICE_WORKER_ERROR_PROCESS_NOT_FOUND;
 279   if (!found->second->Send(message.release()))
 280     return SERVICE_WORKER_ERROR_IPC_FAILED;
 281   return SERVICE_WORKER_OK;
 282 }
 283
 284 void EmbeddedWorkerRegistry::RemoveWorker(int process_id,
 285                                           int embedded_worker_id) {
 286   DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 287   worker_map_.erase(embedded_worker_id);
 288   if (!ContainsKey(worker_process_map_, process_id))
 289     return;
 290   worker_process_map_[process_id].erase(embedded_worker_id);
 291   if (worker_process_map_[process_id].empty())
 292     worker_process_map_.erase(process_id);
 293 }
 294
 295 }  // namespace content