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 42namespace blink { 43 44WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, ScriptDebugServer* scriptDebugServer, WorkerGlobalScope* workerGlobalScope) 45 : InspectorRuntimeAgent(injectedScriptManager, scriptDebugServer) 46 , m_workerGlobalScope(workerGlobalScope) 47 , m_paused(false) 48{ 49} 50 51WorkerRuntimeAgent::~WorkerRuntimeAgent() 52{ 53#if !ENABLE(OILPAN) 54 m_instrumentingAgents->setWorkerRuntimeAgent(0); 55#endif 56} 57 58void WorkerRuntimeAgent::trace(Visitor* visitor) 59{ 60 visitor->trace(m_workerGlobalScope); 61 InspectorRuntimeAgent::trace(visitor); 62} 63 64void WorkerRuntimeAgent::init() 65{ 66 m_instrumentingAgents->setWorkerRuntimeAgent(this); 67} 68 69void 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 78InjectedScript 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 89void WorkerRuntimeAgent::muteConsole() 90{ 91 // We don't need to mute console for workers. 92} 93 94void WorkerRuntimeAgent::unmuteConsole() 95{ 96 // We don't need to mute console for workers. 97} 98 99void WorkerRuntimeAgent::run(ErrorString*) 100{ 101 m_paused = false; 102} 103 104void WorkerRuntimeAgent::isRunRequired(ErrorString*, bool* out_result) 105{ 106 *out_result = m_paused; 107} 108 109void 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