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/core/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/WorkerThread.h" 41 42 namespace blink { 43 44 WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, ScriptDebugServer* scriptDebugServer, WorkerGlobalScope* workerGlobalScope) 45 : InspectorRuntimeAgent(injectedScriptManager, scriptDebugServer) 46 , m_workerGlobalScope(workerGlobalScope) 47 , m_paused(false) 48 { 49 } 50 51 WorkerRuntimeAgent::~WorkerRuntimeAgent() 52 { 53 #if !ENABLE(OILPAN) 54 m_instrumentingAgents->setWorkerRuntimeAgent(0); 55 #endif 56 } 57 58 void WorkerRuntimeAgent::trace(Visitor* visitor) 59 { 60 visitor->trace(m_workerGlobalScope); 61 InspectorRuntimeAgent::trace(visitor); 62 } 63 64 void WorkerRuntimeAgent::init() 65 { 66 m_instrumentingAgents->setWorkerRuntimeAgent(this); 67 } 68 69 void WorkerRuntimeAgent::enable(ErrorString* errorString) 70 { 71 if (m_enabled) 72 return; 73 74 InspectorRuntimeAgent::enable(errorString); 75 addExecutionContextToFrontend(m_workerGlobalScope->script()->scriptState(), true, m_workerGlobalScope->url(), ""); 76 } 77 78 InjectedScript WorkerRuntimeAgent::injectedScriptForEval(ErrorString* error, const int* executionContextId) 79 { 80 if (!executionContextId) 81 return injectedScriptManager()->injectedScriptFor(m_workerGlobalScope->script()->scriptState()); 82 83 InjectedScript injectedScript = injectedScriptManager()->injectedScriptForId(*executionContextId); 84 if (injectedScript.isEmpty()) 85 *error = "Execution context with given id not found."; 86 return injectedScript; 87 } 88 89 void WorkerRuntimeAgent::muteConsole() 90 { 91 // We don't need to mute console for workers. 92 } 93 94 void WorkerRuntimeAgent::unmuteConsole() 95 { 96 // We don't need to mute console for workers. 97 } 98 99 void WorkerRuntimeAgent::run(ErrorString*) 100 { 101 m_paused = false; 102 } 103 104 void WorkerRuntimeAgent::isRunRequired(ErrorString*, bool* out_result) 105 { 106 *out_result = m_paused; 107 } 108 109 void WorkerRuntimeAgent::willEvaluateWorkerScript(WorkerGlobalScope* context, int workerThreadStartMode) 110 { 111 if (workerThreadStartMode != PauseWorkerGlobalScopeOnStart) 112 return; 113 114 m_paused = true; 115 MessageQueueWaitResult result; 116 context->thread()->willEnterNestedLoop(); 117 do { 118 result = context->thread()->runDebuggerTask(); 119 // Keep waiting until execution is resumed. 120 } while (result == MessageQueueMessageReceived && m_paused); 121 context->thread()->didLeaveNestedLoop(); 122 } 123 124 } // namespace blink 125