1 /* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 24 * THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 #include "RunLoop.h" 29 30 #include "WKBase.h" 31 #include <glib.h> 32 33 RunLoop::RunLoop() 34 { 35 m_runLoopContext = g_main_context_default(); 36 ASSERT(m_runLoopContext); 37 m_runLoopMain = g_main_loop_new(m_runLoopContext, FALSE); 38 ASSERT(m_runLoopMain); 39 } 40 41 RunLoop::~RunLoop() 42 { 43 if (m_runLoopMain) { 44 if (g_main_loop_is_running(m_runLoopMain)) 45 g_main_loop_quit(m_runLoopMain); 46 g_main_loop_unref(m_runLoopMain); 47 } 48 49 if (m_runLoopContext) 50 g_main_context_unref(m_runLoopContext); 51 } 52 53 void RunLoop::run() 54 { 55 g_main_loop_run(RunLoop::main()->mainLoop()); 56 } 57 58 GMainLoop* RunLoop::mainLoop() 59 { 60 return m_runLoopMain; 61 } 62 63 void RunLoop::stop() 64 { 65 g_main_loop_quit(m_runLoopMain); 66 } 67 68 gboolean RunLoop::queueWork(RunLoop* runLoop) 69 { 70 runLoop->performWork(); 71 return FALSE; 72 } 73 74 void RunLoop::wakeUp() 75 { 76 GRefPtr<GSource> source = adoptGRef(g_idle_source_new()); 77 g_source_set_priority(source.get(), G_PRIORITY_DEFAULT); 78 g_source_set_callback(source.get(), reinterpret_cast<GSourceFunc>(&RunLoop::queueWork), this, 0); 79 g_source_attach(source.get(), m_runLoopContext); 80 81 g_main_context_wakeup(m_runLoopContext); 82 } 83 84 RunLoop::TimerBase::TimerBase(RunLoop* runLoop) 85 : m_runLoop(runLoop) 86 , m_timerSource(0) 87 { 88 } 89 90 RunLoop::TimerBase::~TimerBase() 91 { 92 stop(); 93 } 94 95 void RunLoop::TimerBase::clearTimerSource() 96 { 97 m_timerSource = 0; 98 } 99 100 void RunLoop::TimerBase::destroyNotifyCallback(RunLoop::TimerBase* timer) 101 { 102 timer->clearTimerSource(); 103 } 104 105 gboolean RunLoop::TimerBase::timerFiredCallback(RunLoop::TimerBase* timer) 106 { 107 timer->fired(); 108 return timer->isRepeating(); 109 } 110 111 void RunLoop::TimerBase::start(double fireInterval, bool repeat) 112 { 113 if (m_timerSource) 114 stop(); 115 116 m_timerSource = adoptGRef(g_timeout_source_new(static_cast<guint>(fireInterval * 1000))); 117 m_isRepeating = repeat; 118 g_source_set_callback(m_timerSource.get(), reinterpret_cast<GSourceFunc>(&RunLoop::TimerBase::timerFiredCallback), this, 119 reinterpret_cast<GDestroyNotify>(&RunLoop::TimerBase::destroyNotifyCallback)); 120 g_source_attach(m_timerSource.get(), m_runLoop->m_runLoopContext); 121 } 122 123 void RunLoop::TimerBase::stop() 124 { 125 if (!m_timerSource) 126 return; 127 128 g_source_destroy(m_timerSource.get()); 129 clearTimerSource(); 130 } 131 132 bool RunLoop::TimerBase::isActive() const 133 { 134 return m_timerSource; 135 } 136