1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 33 #include "core/inspector/WorkerRuntimeAgent.h" 34 35 #include "bindings/v8/ScriptState.h" 36 #include "core/inspector/InjectedScript.h" 37 #include "core/inspector/InstrumentingAgents.h" 38 #include "core/inspector/WorkerDebuggerAgent.h" 39 #include "core/workers/WorkerGlobalScope.h" 40 #include "core/workers/WorkerRunLoop.h" 41 #include "core/workers/WorkerThread.h" 42 43 namespace WebCore { 44 45 WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, ScriptDebugServer* scriptDebugServer, WorkerGlobalScope* workerGlobalScope) 46 : InspectorRuntimeAgent(injectedScriptManager, scriptDebugServer) 47 , m_workerGlobalScope(workerGlobalScope) 48 , m_paused(false) 49 { 50 } 51 52 WorkerRuntimeAgent::~WorkerRuntimeAgent() 53 { 54 m_instrumentingAgents->setWorkerRuntimeAgent(0); 55 } 56 57 void WorkerRuntimeAgent::init() 58 { 59 m_instrumentingAgents->setWorkerRuntimeAgent(this); 60 } 61 62 void WorkerRuntimeAgent::enable(ErrorString* errorString) 63 { 64 if (m_enabled) 65 return; 66 67 InspectorRuntimeAgent::enable(errorString); 68 addExecutionContextToFrontend(m_workerGlobalScope->script()->scriptState(), true, m_workerGlobalScope->url(), ""); 69 } 70 71 InjectedScript WorkerRuntimeAgent::injectedScriptForEval(ErrorString* error, const int* executionContextId) 72 { 73 if (!executionContextId) 74 return injectedScriptManager()->injectedScriptFor(m_workerGlobalScope->script()->scriptState()); 75 76 InjectedScript injectedScript = injectedScriptManager()->injectedScriptForId(*executionContextId); 77 if (injectedScript.isEmpty()) 78 *error = "Execution context with given id not found."; 79 return injectedScript; 80 } 81 82 void WorkerRuntimeAgent::muteConsole() 83 { 84 // We don't need to mute console for workers. 85 } 86 87 void WorkerRuntimeAgent::unmuteConsole() 88 { 89 // We don't need to mute console for workers. 90 } 91 92 void WorkerRuntimeAgent::run(ErrorString*) 93 { 94 m_paused = false; 95 } 96 97 void WorkerRuntimeAgent::isRunRequired(ErrorString*, bool* out_result) 98 { 99 *out_result = m_paused; 100 } 101 102 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode) 103 { 104 if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart) 105 return; 106 107 m_paused = true; 108 MessageQueueWaitResult result; 109 do { 110 result = context->thread()->runLoop().runDebuggerTask(); 111 // Keep waiting until execution is resumed. 112 } while (result == MessageQueueMessageReceived && m_paused); 113 } 114 115 } // namespace WebCore 116