src/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   // TODO(kinuko): Move all EmbeddedWorker message handling from
  53   // ServiceWorkerDispatcherHost.
  54
  55   WorkerInstanceMap::iterator found = worker_map_.find(message.routing_id());
  56   DCHECK(found != worker_map_.end());
  57   if (found == worker_map_.end())
  58     return false;
  59   return found->second->OnMessageReceived(message);
  60 }
  61
  62 void EmbeddedWorkerRegistry::Shutdown() {
  63   for (WorkerInstanceMap::iterator it = worker_map_.begin();
  64        it != worker_map_.end();
  65        ++it) {
  66     it->second->Stop();
  67   }
  68 }
  69
  70 void EmbeddedWorkerRegistry::OnWorkerReadyForInspection(
  71     int process_id,
  72     int embedded_worker_id) {
  73   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  74   DCHECK(found != worker_map_.end());
  75   DCHECK_EQ(found->second->process_id(), process_id);
  76   if (found == worker_map_.end() || found->second->process_id() != process_id)
  77     return;
  78   found->second->OnReadyForInspection();
  79 }
  80
  81 void EmbeddedWorkerRegistry::OnWorkerScriptLoaded(
  82     int process_id,
  83     int thread_id,
  84     int embedded_worker_id ) {
  85   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  86   DCHECK(found != worker_map_.end());
  87   DCHECK_EQ(found->second->process_id(), process_id);
  88   if (found == worker_map_.end() || found->second->process_id() != process_id)
  89     return;
  90   found->second->OnScriptLoaded(thread_id);
  91 }
  92
  93 void EmbeddedWorkerRegistry::OnWorkerScriptLoadFailed(int process_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->OnScriptLoadFailed();
 101 }
 102
 103 void EmbeddedWorkerRegistry::OnWorkerScriptEvaluated(int process_id,
 104                                                      int embedded_worker_id,
 105                                                      bool success) {
 106   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 107   DCHECK(found != worker_map_.end());
 108   DCHECK_EQ(found->second->process_id(), process_id);
 109   if (found == worker_map_.end() || found->second->process_id() != process_id)
 110     return;
 111   found->second->OnScriptEvaluated(success);
 112 }
 113
 114 void EmbeddedWorkerRegistry::OnWorkerStarted(
 115     int process_id, int embedded_worker_id) {
 116   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 117   // TODO(falken): Instead of DCHECK, we should terminate the process on
 118   // unexpected message. Same with most of the DCHECKs in this file.
 119   DCHECK(found != worker_map_.end());
 120   DCHECK_EQ(found->second->process_id(), process_id);
 121   if (found == worker_map_.end() || found->second->process_id() != process_id)
 122     return;
 123
 124   DCHECK(ContainsKey(worker_process_map_, process_id) &&
 125          worker_process_map_[process_id].count(embedded_worker_id) == 1);
 126   if (!ContainsKey(worker_process_map_, process_id) ||
 127       worker_process_map_[process_id].count(embedded_worker_id) == 0) {
 128     return;
 129   }
 130
 131   found->second->OnStarted();
 132 }
 133
 134 void EmbeddedWorkerRegistry::OnWorkerStopped(
 135     int process_id, int embedded_worker_id) {
 136   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 137   DCHECK(found != worker_map_.end());
 138   DCHECK_EQ(found->second->process_id(), process_id);
 139   if (found == worker_map_.end() || found->second->process_id() != process_id)
 140     return;
 141   worker_process_map_[process_id].erase(embedded_worker_id);
 142   found->second->OnStopped();
 143 }
 144
 145 void EmbeddedWorkerRegistry::OnPausedAfterDownload(
 146     int process_id, int embedded_worker_id) {
 147   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 148   DCHECK(found != worker_map_.end());
 149   DCHECK_EQ(found->second->process_id(), process_id);
 150   if (found == worker_map_.end() || found->second->process_id() != process_id)
 151     return;
 152   found->second->OnPausedAfterDownload();
 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, IPC::Sender* sender) {
 186   process_sender_map_[process_id] = sender;
 187   DCHECK(!ContainsKey(worker_process_map_, process_id));
 188 }
 189
 190 void EmbeddedWorkerRegistry::RemoveChildProcessSender(int process_id) {
 191   process_sender_map_.erase(process_id);
 192   std::map<int, std::set<int> >::iterator found =
 193       worker_process_map_.find(process_id);
 194   if (found != worker_process_map_.end()) {
 195     const std::set<int>& worker_set = worker_process_map_[process_id];
 196     for (std::set<int>::const_iterator it = worker_set.begin();
 197          it != worker_set.end();
 198          ++it) {
 199       int embedded_worker_id = *it;
 200       DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 201       worker_map_[embedded_worker_id]->OnStopped();
 202     }
 203     worker_process_map_.erase(found);
 204   }
 205 }
 206
 207 EmbeddedWorkerInstance* EmbeddedWorkerRegistry::GetWorker(
 208     int embedded_worker_id) {
 209   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 210   if (found == worker_map_.end())
 211     return NULL;
 212   return found->second;
 213 }
 214
 215 bool EmbeddedWorkerRegistry::CanHandle(int embedded_worker_id) const {
 216   if (embedded_worker_id < initial_embedded_worker_id_ ||
 217       next_embedded_worker_id_ <= embedded_worker_id) {
 218     return false;
 219   }
 220   return true;
 221 }
 222
 223 EmbeddedWorkerRegistry::EmbeddedWorkerRegistry(
 224     const base::WeakPtr<ServiceWorkerContextCore>& context,
 225     int initial_embedded_worker_id)
 226     : context_(context),
 227       next_embedded_worker_id_(initial_embedded_worker_id),
 228       initial_embedded_worker_id_(initial_embedded_worker_id) {
 229 }
 230
 231 EmbeddedWorkerRegistry::~EmbeddedWorkerRegistry() {
 232   Shutdown();
 233 }
 234
 235 ServiceWorkerStatusCode EmbeddedWorkerRegistry::SendStartWorker(
 236     scoped_ptr<EmbeddedWorkerMsg_StartWorker_Params> params,
 237     int process_id) {
 238   // The ServiceWorkerDispatcherHost is supposed to be created when the process
 239   // is created, and keep an entry in process_sender_map_ for its whole
 240   // lifetime.
 241   DCHECK(ContainsKey(process_sender_map_, process_id));
 242
 243   int embedded_worker_id = params->embedded_worker_id;
 244   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 245   DCHECK(found != worker_map_.end());
 246   DCHECK_EQ(found->second->process_id(), process_id);
 247
 248   DCHECK(!ContainsKey(worker_process_map_, process_id) ||
 249          worker_process_map_[process_id].count(embedded_worker_id) == 0);
 250
 251   ServiceWorkerStatusCode status =
 252       Send(process_id, new EmbeddedWorkerMsg_StartWorker(*params));
 253   if (status == SERVICE_WORKER_OK)
 254     worker_process_map_[process_id].insert(embedded_worker_id);
 255   return status;
 256 }
 257
 258 ServiceWorkerStatusCode EmbeddedWorkerRegistry::Send(
 259     int process_id, IPC::Message* message_ptr) {
 260   scoped_ptr<IPC::Message> message(message_ptr);
 261   if (!context_)
 262     return SERVICE_WORKER_ERROR_ABORT;
 263   ProcessToSenderMap::iterator found = process_sender_map_.find(process_id);
 264   if (found == process_sender_map_.end())
 265     return SERVICE_WORKER_ERROR_PROCESS_NOT_FOUND;
 266   if (!found->second->Send(message.release()))
 267     return SERVICE_WORKER_ERROR_IPC_FAILED;
 268   return SERVICE_WORKER_OK;
 269 }
 270
 271 void EmbeddedWorkerRegistry::RemoveWorker(int process_id,
 272                                           int embedded_worker_id) {
 273   DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 274   worker_map_.erase(embedded_worker_id);
 275   worker_process_map_.erase(process_id);
 276 }
 277
 278 }  // namespace content