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(
  83     int process_id,
  84     int thread_id,
  85     int embedded_worker_id ) {
  86   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  87   DCHECK(found != worker_map_.end());
  88   DCHECK_EQ(found->second->process_id(), process_id);
  89   if (found == worker_map_.end() || found->second->process_id() != process_id)
  90     return;
  91   found->second->OnScriptLoaded(thread_id);
  92 }
  93
  94 void EmbeddedWorkerRegistry::OnWorkerScriptLoadFailed(int process_id,
  95                                                       int embedded_worker_id) {
  96   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
  97   DCHECK(found != worker_map_.end());
  98   DCHECK_EQ(found->second->process_id(), process_id);
  99   if (found == worker_map_.end() || found->second->process_id() != process_id)
 100     return;
 101   found->second->OnScriptLoadFailed();
 102 }
 103
 104 void EmbeddedWorkerRegistry::OnWorkerScriptEvaluated(int process_id,
 105                                                      int embedded_worker_id,
 106                                                      bool success) {
 107   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 108   DCHECK(found != worker_map_.end());
 109   DCHECK_EQ(found->second->process_id(), process_id);
 110   if (found == worker_map_.end() || found->second->process_id() != process_id)
 111     return;
 112   found->second->OnScriptEvaluated(success);
 113 }
 114
 115 void EmbeddedWorkerRegistry::OnWorkerStarted(
 116     int process_id, int embedded_worker_id) {
 117   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 118   // TODO(falken): Instead of DCHECK, we should terminate the process on
 119   // unexpected message. Same with most of the DCHECKs in this file.
 120   DCHECK(found != worker_map_.end());
 121   DCHECK_EQ(found->second->process_id(), process_id);
 122   if (found == worker_map_.end() || found->second->process_id() != process_id)
 123     return;
 124
 125   DCHECK(ContainsKey(worker_process_map_, process_id) &&
 126          worker_process_map_[process_id].count(embedded_worker_id) == 1);
 127   if (!ContainsKey(worker_process_map_, process_id) ||
 128       worker_process_map_[process_id].count(embedded_worker_id) == 0) {
 129     return;
 130   }
 131
 132   found->second->OnStarted();
 133 }
 134
 135 void EmbeddedWorkerRegistry::OnWorkerStopped(
 136     int process_id, int embedded_worker_id) {
 137   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 138   DCHECK(found != worker_map_.end());
 139   DCHECK_EQ(found->second->process_id(), process_id);
 140   if (found == worker_map_.end() || found->second->process_id() != process_id)
 141     return;
 142   worker_process_map_[process_id].erase(embedded_worker_id);
 143   found->second->OnStopped();
 144 }
 145
 146 void EmbeddedWorkerRegistry::OnReportException(
 147     int embedded_worker_id,
 148     const base::string16& error_message,
 149     int line_number,
 150     int column_number,
 151     const GURL& source_url) {
 152   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 153   DCHECK(found != worker_map_.end());
 154   if (found == worker_map_.end())
 155     return;
 156   found->second->OnReportException(
 157       error_message, line_number, column_number, source_url);
 158 }
 159
 160 void EmbeddedWorkerRegistry::OnReportConsoleMessage(
 161     int embedded_worker_id,
 162     int source_identifier,
 163     int message_level,
 164     const base::string16& message,
 165     int line_number,
 166     const GURL& source_url) {
 167   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 168   DCHECK(found != worker_map_.end());
 169   if (found == worker_map_.end())
 170     return;
 171   found->second->OnReportConsoleMessage(
 172       source_identifier, message_level, message, line_number, source_url);
 173 }
 174
 175 void EmbeddedWorkerRegistry::AddChildProcessSender(
 176     int process_id,
 177     IPC::Sender* sender,
 178     MessagePortMessageFilter* message_port_message_filter) {
 179   process_sender_map_[process_id] = sender;
 180   process_message_port_message_filter_map_[process_id] =
 181       message_port_message_filter;
 182   DCHECK(!ContainsKey(worker_process_map_, process_id));
 183 }
 184
 185 void EmbeddedWorkerRegistry::RemoveChildProcessSender(int process_id) {
 186   process_sender_map_.erase(process_id);
 187   process_message_port_message_filter_map_.erase(process_id);
 188   std::map<int, std::set<int> >::iterator found =
 189       worker_process_map_.find(process_id);
 190   if (found != worker_process_map_.end()) {
 191     const std::set<int>& worker_set = worker_process_map_[process_id];
 192     for (std::set<int>::const_iterator it = worker_set.begin();
 193          it != worker_set.end();
 194          ++it) {
 195       int embedded_worker_id = *it;
 196       DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 197       worker_map_[embedded_worker_id]->OnDetached();
 198     }
 199     worker_process_map_.erase(found);
 200   }
 201 }
 202
 203 EmbeddedWorkerInstance* EmbeddedWorkerRegistry::GetWorker(
 204     int embedded_worker_id) {
 205   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 206   if (found == worker_map_.end())
 207     return NULL;
 208   return found->second;
 209 }
 210
 211 bool EmbeddedWorkerRegistry::CanHandle(int embedded_worker_id) const {
 212   if (embedded_worker_id < initial_embedded_worker_id_ ||
 213       next_embedded_worker_id_ <= embedded_worker_id) {
 214     return false;
 215   }
 216   return true;
 217 }
 218
 219 MessagePortMessageFilter*
 220 EmbeddedWorkerRegistry::MessagePortMessageFilterForProcess(int process_id) {
 221   return process_message_port_message_filter_map_[process_id];
 222 }
 223
 224 EmbeddedWorkerRegistry::EmbeddedWorkerRegistry(
 225     const base::WeakPtr<ServiceWorkerContextCore>& context,
 226     int initial_embedded_worker_id)
 227     : context_(context),
 228       next_embedded_worker_id_(initial_embedded_worker_id),
 229       initial_embedded_worker_id_(initial_embedded_worker_id) {
 230 }
 231
 232 EmbeddedWorkerRegistry::~EmbeddedWorkerRegistry() {
 233   Shutdown();
 234 }
 235
 236 ServiceWorkerStatusCode EmbeddedWorkerRegistry::SendStartWorker(
 237     scoped_ptr<EmbeddedWorkerMsg_StartWorker_Params> params,
 238     int process_id) {
 239   if (!context_)
 240     return SERVICE_WORKER_ERROR_ABORT;
 241
 242   // The ServiceWorkerDispatcherHost is supposed to be created when the process
 243   // is created, and keep an entry in process_sender_map_ for its whole
 244   // lifetime.
 245   DCHECK(ContainsKey(process_sender_map_, process_id));
 246
 247   int embedded_worker_id = params->embedded_worker_id;
 248   WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
 249   DCHECK(found != worker_map_.end());
 250   DCHECK_EQ(found->second->process_id(), process_id);
 251
 252   DCHECK(!ContainsKey(worker_process_map_, process_id) ||
 253          worker_process_map_[process_id].count(embedded_worker_id) == 0);
 254
 255   ServiceWorkerStatusCode status =
 256       Send(process_id, new EmbeddedWorkerMsg_StartWorker(*params));
 257   if (status == SERVICE_WORKER_OK)
 258     worker_process_map_[process_id].insert(embedded_worker_id);
 259   return status;
 260 }
 261
 262 ServiceWorkerStatusCode EmbeddedWorkerRegistry::Send(
 263     int process_id, IPC::Message* message_ptr) {
 264   scoped_ptr<IPC::Message> message(message_ptr);
 265   if (!context_)
 266     return SERVICE_WORKER_ERROR_ABORT;
 267   ProcessToSenderMap::iterator found = process_sender_map_.find(process_id);
 268   if (found == process_sender_map_.end())
 269     return SERVICE_WORKER_ERROR_PROCESS_NOT_FOUND;
 270   if (!found->second->Send(message.release()))
 271     return SERVICE_WORKER_ERROR_IPC_FAILED;
 272   return SERVICE_WORKER_OK;
 273 }
 274
 275 void EmbeddedWorkerRegistry::RemoveWorker(int process_id,
 276                                           int embedded_worker_id) {
 277   DCHECK(ContainsKey(worker_map_, embedded_worker_id));
 278   worker_map_.erase(embedded_worker_id);
 279   if (!ContainsKey(worker_process_map_, process_id))
 280     return;
 281   worker_process_map_[process_id].erase(embedded_worker_id);
 282   if (worker_process_map_[process_id].empty())
 283     worker_process_map_.erase(process_id);
 284 }
 285
 286 }  // namespace content