1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the QtCore module of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include "qeventdispatcher_symbian_p.h"
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43 | #include <private/qthread_p.h>
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44 | #include <qcoreapplication.h>
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45 | #include <private/qcoreapplication_p.h>
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46 |
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47 | #include <unistd.h>
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48 | #include <errno.h>
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49 |
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50 | QT_BEGIN_NAMESPACE
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51 |
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52 | #ifdef SYMBIAN_GRAPHICS_WSERV_QT_EFFECTS
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53 | // when the system UI is Qt based, priority drop is not needed as CPU starved processes will not be killed.
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54 | #undef QT_SYMBIAN_PRIORITY_DROP
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55 | #else
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56 | #define QT_SYMBIAN_PRIORITY_DROP
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57 | #endif
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58 |
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59 | #define WAKE_UP_PRIORITY CActive::EPriorityStandard
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60 | #define TIMER_PRIORITY CActive::EPriorityHigh
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61 | #define NULLTIMER_PRIORITY CActive::EPriorityLow
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62 | #define COMPLETE_DEFERRED_ACTIVE_OBJECTS_PRIORITY CActive::EPriorityIdle
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63 |
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64 | static inline int qt_pipe_write(int socket, const char *data, qint64 len)
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65 | {
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66 | return ::write(socket, data, len);
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67 | }
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68 | #if defined(write)
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69 | # undef write
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70 | #endif
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71 |
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72 | static inline int qt_pipe_close(int socket)
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73 | {
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74 | return ::close(socket);
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75 | }
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76 | #if defined(close)
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77 | # undef close
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78 | #endif
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79 |
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80 | static inline int qt_pipe_fcntl(int socket, int command)
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81 | {
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82 | return ::fcntl(socket, command);
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83 | }
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84 | static inline int qt_pipe2_fcntl(int socket, int command, int option)
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85 | {
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86 | return ::fcntl(socket, command, option);
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87 | }
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88 | #if defined(fcntl)
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89 | # undef fcntl
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90 | #endif
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91 |
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92 | static inline int qt_socket_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
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93 | {
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94 | return ::select(nfds, readfds, writefds, exceptfds, timeout);
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95 | }
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96 |
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97 | // This simply interrupts the select and locks the mutex until destroyed.
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98 | class QSelectMutexGrabber
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99 | {
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100 | public:
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101 | QSelectMutexGrabber(int writeFd, int readFd, QMutex *mutex)
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102 | : m_mutex(mutex)
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103 | {
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104 | if (m_mutex->tryLock())
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105 | return;
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106 |
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107 | char dummy = 0;
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108 | qt_pipe_write(writeFd, &dummy, 1);
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109 |
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110 | m_mutex->lock();
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111 |
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112 | char buffer;
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113 | while (::read(readFd, &buffer, 1) > 0) {}
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114 | }
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115 |
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116 | ~QSelectMutexGrabber()
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117 | {
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118 | m_mutex->unlock();
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119 | }
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120 |
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121 | private:
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122 | QMutex *m_mutex;
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123 | };
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124 |
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125 | /*
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126 | * This class is designed to aid in implementing event handling in a more round robin fashion. We
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127 | * cannot change active objects that we do not own, but the active objects that Qt owns will use
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128 | * this as a base class with convenience functions.
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129 | *
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130 | * Here is how it works: On every RunL, the deriving class should call maybeQueueForLater().
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131 | * This will return whether the active object has been queued, or whether it should run immediately.
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132 | * Queued objects will run again after other events have been processed.
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133 | *
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134 | * The QCompleteDeferredAOs class is a special object that runs after all others, which will
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135 | * reactivate the objects that were previously not run.
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136 | */
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137 | inline QActiveObject::QActiveObject(TInt priority, QEventDispatcherSymbian *dispatcher)
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138 | : CActive(priority),
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139 | m_dispatcher(dispatcher),
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140 | m_hasAlreadyRun(false),
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141 | m_hasRunAgain(false),
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142 | m_iterationCount(1)
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143 | {
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144 | }
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145 |
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146 | QActiveObject::~QActiveObject()
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147 | {
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148 | if (m_hasRunAgain)
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149 | m_dispatcher->removeDeferredActiveObject(this);
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150 | }
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151 |
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152 | bool QActiveObject::maybeQueueForLater()
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153 | {
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154 | Q_ASSERT(!m_hasRunAgain);
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155 |
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156 | if (!m_hasAlreadyRun || m_dispatcher->iterationCount() != m_iterationCount) {
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157 | // First occurrence of this event in this iteration.
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158 | m_hasAlreadyRun = true;
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159 | m_iterationCount = m_dispatcher->iterationCount();
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160 | return false;
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161 | } else {
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162 | // The event has already occurred.
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163 | m_dispatcher->addDeferredActiveObject(this);
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164 | m_hasRunAgain = true;
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165 | return true;
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166 | }
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167 | }
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168 |
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169 | void QActiveObject::reactivateAndComplete()
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170 | {
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171 | iStatus = KRequestPending;
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172 | SetActive();
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173 | TRequestStatus *status = &iStatus;
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174 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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175 |
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176 | m_hasRunAgain = false;
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177 | m_hasAlreadyRun = false;
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178 | }
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179 |
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180 | QWakeUpActiveObject::QWakeUpActiveObject(QEventDispatcherSymbian *dispatcher)
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181 | : QActiveObject(WAKE_UP_PRIORITY, dispatcher)
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182 | {
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183 | CActiveScheduler::Add(this);
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184 | iStatus = KRequestPending;
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185 | SetActive();
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186 | }
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187 |
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188 | QWakeUpActiveObject::~QWakeUpActiveObject()
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189 | {
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190 | Cancel();
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191 | }
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192 |
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193 | void QWakeUpActiveObject::DoCancel()
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194 | {
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195 | if (iStatus.Int() == KRequestPending) {
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196 | TRequestStatus *status = &iStatus;
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197 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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198 | }
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199 | }
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200 |
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201 | void QWakeUpActiveObject::RunL()
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202 | {
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203 | if (maybeQueueForLater())
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204 | return;
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205 |
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206 | iStatus = KRequestPending;
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207 | SetActive();
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208 | QT_TRYCATCH_LEAVING(m_dispatcher->wakeUpWasCalled());
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209 | }
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210 |
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211 | QTimerActiveObject::QTimerActiveObject(QEventDispatcherSymbian *dispatcher, SymbianTimerInfo *timerInfo)
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212 | : QActiveObject((timerInfo->interval) ? TIMER_PRIORITY : NULLTIMER_PRIORITY , dispatcher),
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213 | m_timerInfo(timerInfo)
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214 | {
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215 | }
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216 |
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217 | QTimerActiveObject::~QTimerActiveObject()
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218 | {
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219 | Cancel();
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220 | m_rTimer.Close(); //close of null handle is safe
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221 | }
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222 |
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223 | void QTimerActiveObject::DoCancel()
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224 | {
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225 | if (m_timerInfo->interval > 0) {
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226 | m_rTimer.Cancel();
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227 | } else {
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228 | if (iStatus.Int() == KRequestPending) {
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229 | TRequestStatus *status = &iStatus;
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230 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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231 | }
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232 | }
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233 | }
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234 |
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235 | void QTimerActiveObject::RunL()
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236 | {
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237 | int error = KErrNone;
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238 | if (iStatus == KErrNone) {
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239 | QT_TRYCATCH_ERROR(error, Run());
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240 | } else {
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241 | error = iStatus.Int();
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242 | }
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243 | // All Symbian error codes are negative.
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244 | if (error < 0) {
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245 | CActiveScheduler::Current()->Error(error); // stop and report here, as this timer will be deleted on scope exit
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246 | }
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247 | }
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248 |
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249 | #define MAX_SYMBIAN_TIMEOUT_MS 2000000
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250 | void QTimerActiveObject::StartTimer()
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251 | {
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252 | if (m_timerInfo->msLeft > MAX_SYMBIAN_TIMEOUT_MS) {
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253 | //There is loss of accuracy anyway due to needing to restart the timer every 33 minutes,
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254 | //so the 1/64s res of After() is acceptable for these very long timers.
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255 | m_rTimer.After(iStatus, MAX_SYMBIAN_TIMEOUT_MS * 1000);
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256 | m_timerInfo->msLeft -= MAX_SYMBIAN_TIMEOUT_MS;
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257 | } else {
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258 | //HighRes gives the 1ms accuracy expected by Qt, the +1 is to ensure that
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259 | //"Timers will never time out earlier than the specified timeout value"
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260 | //condition is always met.
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261 | m_rTimer.HighRes(iStatus, (m_timerInfo->msLeft + 1) * 1000);
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262 | m_timerInfo->msLeft = 0;
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263 | }
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264 | SetActive();
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265 | }
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266 |
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267 | void QTimerActiveObject::Run()
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268 | {
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269 | //restart timer immediately, if the timeout has been split because it overflows max for platform.
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270 | if (m_timerInfo->msLeft > 0) {
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271 | StartTimer();
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272 | return;
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273 | }
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274 |
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275 | if (maybeQueueForLater())
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276 | return;
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277 |
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278 | if (m_timerInfo->interval > 0) {
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279 | // Start a new timer immediately so that we don't lose time.
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280 | m_timerInfo->msLeft = m_timerInfo->interval;
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281 | StartTimer();
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282 |
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283 | m_timerInfo->dispatcher->timerFired(m_timerInfo->timerId);
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284 | } else {
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285 | // However, we only complete zero timers after the event has finished,
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286 | // in order to prevent busy looping when doing nested loops.
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287 |
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288 | // Keep the refpointer around in order to avoid deletion until the end of this function.
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289 | SymbianTimerInfoPtr timerInfoPtr(m_timerInfo);
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290 |
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291 | m_timerInfo->dispatcher->timerFired(m_timerInfo->timerId);
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292 |
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293 | iStatus = KRequestPending;
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294 | SetActive();
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295 | TRequestStatus *status = &iStatus;
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296 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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297 | }
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298 | }
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299 |
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300 | void QTimerActiveObject::Start()
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301 | {
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302 | CActiveScheduler::Add(this);
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303 | m_timerInfo->msLeft = m_timerInfo->interval;
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304 | if (m_timerInfo->interval > 0) {
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305 | if (!m_rTimer.Handle()) {
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306 | qt_symbian_throwIfError(m_rTimer.CreateLocal());
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307 | }
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308 | StartTimer();
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309 | } else {
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310 | iStatus = KRequestPending;
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311 | SetActive();
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312 | TRequestStatus *status = &iStatus;
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313 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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314 | }
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315 | }
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316 |
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317 | SymbianTimerInfo::SymbianTimerInfo()
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318 | : timerAO(0)
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319 | {
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320 | }
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321 |
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322 | SymbianTimerInfo::~SymbianTimerInfo()
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323 | {
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324 | delete timerAO;
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325 | }
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326 |
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327 | QCompleteDeferredAOs::QCompleteDeferredAOs(QEventDispatcherSymbian *dispatcher)
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328 | : CActive(COMPLETE_DEFERRED_ACTIVE_OBJECTS_PRIORITY),
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329 | m_dispatcher(dispatcher)
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330 | {
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331 | CActiveScheduler::Add(this);
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332 | iStatus = KRequestPending;
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333 | SetActive();
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334 | }
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335 |
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336 | QCompleteDeferredAOs::~QCompleteDeferredAOs()
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337 | {
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338 | Cancel();
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339 | }
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340 |
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341 | void QCompleteDeferredAOs::complete()
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342 | {
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343 | if (iStatus.Int() == KRequestPending) {
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344 | TRequestStatus *status = &iStatus;
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345 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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346 | }
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347 | }
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348 |
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349 | void QCompleteDeferredAOs::DoCancel()
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350 | {
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351 | if (iStatus.Int() == KRequestPending) {
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352 | TRequestStatus *status = &iStatus;
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353 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
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354 | }
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355 | }
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356 |
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357 | void QCompleteDeferredAOs::RunL()
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358 | {
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359 | iStatus = KRequestPending;
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360 | SetActive();
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361 |
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362 | QT_TRYCATCH_LEAVING(m_dispatcher->reactivateDeferredActiveObjects());
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363 | }
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364 |
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365 | QSelectThread::QSelectThread()
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366 | : m_quit(false)
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367 | {
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368 | if (::pipe(m_pipeEnds) != 0) {
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369 | qWarning("Select thread was unable to open a pipe, errno: %i", errno);
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370 | } else {
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371 | int flags0 = qt_pipe_fcntl(m_pipeEnds[0], F_GETFL);
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372 | int flags1 = qt_pipe_fcntl(m_pipeEnds[1], F_GETFL);
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373 | // We should check the error code here, but Open C has a bug that returns
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374 | // failure even though the operation was successful.
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375 | qt_pipe2_fcntl(m_pipeEnds[0], F_SETFL, flags0 | O_NONBLOCK);
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376 | qt_pipe2_fcntl(m_pipeEnds[1], F_SETFL, flags1 | O_NONBLOCK);
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377 | }
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378 | }
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379 |
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380 | QSelectThread::~QSelectThread()
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381 | {
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382 | qt_pipe_close(m_pipeEnds[1]);
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383 | qt_pipe_close(m_pipeEnds[0]);
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384 | }
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385 |
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386 | void QSelectThread::run()
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387 | {
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388 | Q_D(QThread);
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389 |
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390 | m_mutex.lock();
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391 |
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392 | while (!m_quit) {
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393 | fd_set readfds;
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394 | fd_set writefds;
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395 | fd_set exceptionfds;
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396 |
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397 | FD_ZERO(&readfds);
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398 | FD_ZERO(&writefds);
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399 | FD_ZERO(&exceptionfds);
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400 |
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401 | int maxfd = 0;
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402 | maxfd = qMax(maxfd, updateSocketSet(QSocketNotifier::Read, &readfds));
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403 | maxfd = qMax(maxfd, updateSocketSet(QSocketNotifier::Write, &writefds));
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404 | maxfd = qMax(maxfd, updateSocketSet(QSocketNotifier::Exception, &exceptionfds));
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405 | maxfd = qMax(maxfd, m_pipeEnds[0]);
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406 | maxfd++;
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407 |
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408 | FD_SET(m_pipeEnds[0], &readfds);
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409 |
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410 | int ret;
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411 | int savedSelectErrno;
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412 | ret = qt_socket_select(maxfd, &readfds, &writefds, &exceptionfds, 0);
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413 | savedSelectErrno = errno;
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414 |
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415 | if(ret == 0) {
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416 | // do nothing
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417 | } else if (ret < 0) {
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418 | switch (savedSelectErrno) {
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419 | case EBADF:
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420 | case EINVAL:
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421 | case ENOMEM:
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422 | case EFAULT:
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423 | qWarning("::select() returned an error: %i", savedSelectErrno);
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424 | break;
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425 | case ECONNREFUSED:
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426 | case EPIPE:
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427 | qWarning("::select() returned an error: %i (go through sockets)", savedSelectErrno);
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428 | // prepare to go through all sockets
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429 | // mark in fd sets both:
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430 | // good ones
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431 | // ones that return -1 in select
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432 | // after loop update notifiers for all of them
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433 |
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434 | // as we don't have "exception" notifier type
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435 | // we should force monitoring fd_set of this
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436 | // type as well
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437 |
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438 | // clean @ start
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439 | FD_ZERO(&readfds);
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440 | FD_ZERO(&writefds);
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441 | FD_ZERO(&exceptionfds);
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442 | for (QHash<QSocketNotifier *, TRequestStatus *>::const_iterator i = m_AOStatuses.begin();
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443 | i != m_AOStatuses.end(); ++i) {
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444 |
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445 | fd_set onefds;
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446 | FD_ZERO(&onefds);
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447 | FD_SET(i.key()->socket(), &onefds);
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448 |
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449 | fd_set excfds;
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450 | FD_ZERO(&excfds);
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451 | FD_SET(i.key()->socket(), &excfds);
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452 |
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453 | maxfd = i.key()->socket() + 1;
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454 |
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455 | struct timeval timeout;
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456 | timeout.tv_sec = 0;
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457 | timeout.tv_usec = 0;
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458 |
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459 | ret = 0;
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460 |
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461 | if(i.key()->type() == QSocketNotifier::Read) {
|
---|
462 | ret = ::select(maxfd, &onefds, 0, &excfds, &timeout);
|
---|
463 | if(ret != 0) FD_SET(i.key()->socket(), &readfds);
|
---|
464 | } else if(i.key()->type() == QSocketNotifier::Write) {
|
---|
465 | ret = ::select(maxfd, 0, &onefds, &excfds, &timeout);
|
---|
466 | if(ret != 0) FD_SET(i.key()->socket(), &writefds);
|
---|
467 | }
|
---|
468 |
|
---|
469 | } // end for
|
---|
470 |
|
---|
471 | // traversed all, so update
|
---|
472 | updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
|
---|
473 | updateActivatedNotifiers(QSocketNotifier::Read, &readfds);
|
---|
474 | updateActivatedNotifiers(QSocketNotifier::Write, &writefds);
|
---|
475 |
|
---|
476 | break;
|
---|
477 | case EINTR: // Should never occur on Symbian, but this is future proof!
|
---|
478 | default:
|
---|
479 | qWarning("::select() returned an unknown error: %i", savedSelectErrno);
|
---|
480 |
|
---|
481 | break;
|
---|
482 | }
|
---|
483 | } else {
|
---|
484 | updateActivatedNotifiers(QSocketNotifier::Exception, &exceptionfds);
|
---|
485 | updateActivatedNotifiers(QSocketNotifier::Read, &readfds);
|
---|
486 | updateActivatedNotifiers(QSocketNotifier::Write, &writefds);
|
---|
487 | }
|
---|
488 |
|
---|
489 | if (FD_ISSET(m_pipeEnds[0], &readfds))
|
---|
490 | m_waitCond.wait(&m_mutex);
|
---|
491 | }
|
---|
492 |
|
---|
493 | m_mutex.unlock();
|
---|
494 | }
|
---|
495 |
|
---|
496 | void QSelectThread::requestSocketEvents ( QSocketNotifier *notifier, TRequestStatus *status )
|
---|
497 | {
|
---|
498 | Q_D(QThread);
|
---|
499 |
|
---|
500 | if (!isRunning()) {
|
---|
501 | start();
|
---|
502 | }
|
---|
503 |
|
---|
504 | Q_ASSERT(QThread::currentThread() == this->thread());
|
---|
505 |
|
---|
506 | QSelectMutexGrabber lock(m_pipeEnds[1], m_pipeEnds[0], &m_mutex);
|
---|
507 |
|
---|
508 | Q_ASSERT(!m_AOStatuses.contains(notifier));
|
---|
509 |
|
---|
510 | m_AOStatuses.insert(notifier, status);
|
---|
511 |
|
---|
512 | m_waitCond.wakeAll();
|
---|
513 | }
|
---|
514 |
|
---|
515 | void QSelectThread::cancelSocketEvents ( QSocketNotifier *notifier )
|
---|
516 | {
|
---|
517 | Q_ASSERT(QThread::currentThread() == this->thread());
|
---|
518 |
|
---|
519 | QSelectMutexGrabber lock(m_pipeEnds[1], m_pipeEnds[0], &m_mutex);
|
---|
520 |
|
---|
521 | m_AOStatuses.remove(notifier);
|
---|
522 |
|
---|
523 | m_waitCond.wakeAll();
|
---|
524 | }
|
---|
525 |
|
---|
526 | void QSelectThread::restart()
|
---|
527 | {
|
---|
528 | Q_ASSERT(QThread::currentThread() == this->thread());
|
---|
529 |
|
---|
530 | QSelectMutexGrabber lock(m_pipeEnds[1], m_pipeEnds[0], &m_mutex);
|
---|
531 |
|
---|
532 | m_waitCond.wakeAll();
|
---|
533 | }
|
---|
534 |
|
---|
535 | int QSelectThread::updateSocketSet(QSocketNotifier::Type type, fd_set *fds)
|
---|
536 | {
|
---|
537 | int maxfd = 0;
|
---|
538 | if(m_AOStatuses.isEmpty()) {
|
---|
539 | /*
|
---|
540 | * Wonder if should return -1
|
---|
541 | * to signal that no descriptors
|
---|
542 | * added to fds
|
---|
543 | */
|
---|
544 | return maxfd;
|
---|
545 | }
|
---|
546 | for ( QHash<QSocketNotifier *, TRequestStatus *>::const_iterator i = m_AOStatuses.begin();
|
---|
547 | i != m_AOStatuses.end(); ++i) {
|
---|
548 | if (i.key()->type() == type) {
|
---|
549 | FD_SET(i.key()->socket(), fds);
|
---|
550 | maxfd = qMax(maxfd, i.key()->socket());
|
---|
551 | } else if(type == QSocketNotifier::Exception) {
|
---|
552 | /*
|
---|
553 | * We are registering existing sockets
|
---|
554 | * always to exception set
|
---|
555 | *
|
---|
556 | * Doing double FD_SET shouldn't
|
---|
557 | * matter
|
---|
558 | */
|
---|
559 | FD_SET(i.key()->socket(), fds);
|
---|
560 | maxfd = qMax(maxfd, i.key()->socket());
|
---|
561 | }
|
---|
562 | }
|
---|
563 |
|
---|
564 | return maxfd;
|
---|
565 | }
|
---|
566 |
|
---|
567 | void QSelectThread::updateActivatedNotifiers(QSocketNotifier::Type type, fd_set *fds)
|
---|
568 | {
|
---|
569 | Q_D(QThread);
|
---|
570 | if(m_AOStatuses.isEmpty()) {
|
---|
571 | return;
|
---|
572 | }
|
---|
573 | QList<QSocketNotifier *> toRemove;
|
---|
574 | for (QHash<QSocketNotifier *, TRequestStatus *>::const_iterator i = m_AOStatuses.begin();
|
---|
575 | i != m_AOStatuses.end(); ++i) {
|
---|
576 | if (i.key()->type() == type && FD_ISSET(i.key()->socket(), fds)) {
|
---|
577 | toRemove.append(i.key());
|
---|
578 | TRequestStatus *status = i.value();
|
---|
579 | // Thread data is still owned by the main thread.
|
---|
580 | QEventDispatcherSymbian::RequestComplete(d->threadData->symbian_thread_handle, status, KErrNone);
|
---|
581 | } else if(type == QSocketNotifier::Exception && FD_ISSET(i.key()->socket(), fds)) {
|
---|
582 | /*
|
---|
583 | * check if socket is in exception set
|
---|
584 | * then signal RequestComplete for it
|
---|
585 | */
|
---|
586 | qWarning("exception on %d [will close the socket handle - hack]", i.key()->socket());
|
---|
587 | // quick fix; there is a bug
|
---|
588 | // when doing read on socket
|
---|
589 | // errors not preoperly mapped
|
---|
590 | // after offline-ing the device
|
---|
591 | // on some devices we do get exception
|
---|
592 | ::close(i.key()->socket());
|
---|
593 | toRemove.append(i.key());
|
---|
594 | TRequestStatus *status = i.value();
|
---|
595 | QEventDispatcherSymbian::RequestComplete(d->threadData->symbian_thread_handle, status, KErrNone);
|
---|
596 | }
|
---|
597 | }
|
---|
598 |
|
---|
599 | for (int c = 0; c < toRemove.size(); ++c) {
|
---|
600 | m_AOStatuses.remove(toRemove[c]);
|
---|
601 | }
|
---|
602 | }
|
---|
603 |
|
---|
604 | void QSelectThread::stop()
|
---|
605 | {
|
---|
606 | m_quit = true;
|
---|
607 | restart();
|
---|
608 | wait();
|
---|
609 | }
|
---|
610 |
|
---|
611 | QSocketActiveObject::QSocketActiveObject(QEventDispatcherSymbian *dispatcher, QSocketNotifier *notifier)
|
---|
612 | : QActiveObject(CActive::EPriorityStandard, dispatcher),
|
---|
613 | m_notifier(notifier),
|
---|
614 | m_inSocketEvent(false),
|
---|
615 | m_deleteLater(false)
|
---|
616 | {
|
---|
617 | CActiveScheduler::Add(this);
|
---|
618 | iStatus = KRequestPending;
|
---|
619 | SetActive();
|
---|
620 | }
|
---|
621 |
|
---|
622 | QSocketActiveObject::~QSocketActiveObject()
|
---|
623 | {
|
---|
624 | Cancel();
|
---|
625 | }
|
---|
626 |
|
---|
627 | void QSocketActiveObject::DoCancel()
|
---|
628 | {
|
---|
629 | if (iStatus.Int() == KRequestPending) {
|
---|
630 | TRequestStatus *status = &iStatus;
|
---|
631 | QEventDispatcherSymbian::RequestComplete(status, KErrNone);
|
---|
632 | }
|
---|
633 | }
|
---|
634 |
|
---|
635 | void QSocketActiveObject::RunL()
|
---|
636 | {
|
---|
637 | if (maybeQueueForLater())
|
---|
638 | return;
|
---|
639 |
|
---|
640 | QT_TRYCATCH_LEAVING(m_dispatcher->socketFired(this));
|
---|
641 | }
|
---|
642 |
|
---|
643 | void QSocketActiveObject::deleteLater()
|
---|
644 | {
|
---|
645 | if (m_inSocketEvent) {
|
---|
646 | m_deleteLater = true;
|
---|
647 | } else {
|
---|
648 | delete this;
|
---|
649 | }
|
---|
650 | }
|
---|
651 |
|
---|
652 | #ifdef QT_SYMBIAN_PRIORITY_DROP
|
---|
653 | class QIdleDetectorThread
|
---|
654 | {
|
---|
655 | public:
|
---|
656 | QIdleDetectorThread()
|
---|
657 | : m_state(STATE_RUN), m_stop(false)
|
---|
658 | {
|
---|
659 | qt_symbian_throwIfError(m_lock.CreateLocal(0));
|
---|
660 | TInt err = m_idleDetectorThread.Create(KNullDesC(), &idleDetectorThreadFunc, 1024, NULL, this);
|
---|
661 | if (err != KErrNone)
|
---|
662 | m_lock.Close();
|
---|
663 | qt_symbian_throwIfError(err);
|
---|
664 | m_idleDetectorThread.SetPriority(EPriorityAbsoluteBackgroundNormal);
|
---|
665 | m_idleDetectorThread.Resume();
|
---|
666 | }
|
---|
667 |
|
---|
668 | ~QIdleDetectorThread()
|
---|
669 | {
|
---|
670 | // close down the idle thread because if corelib is loaded temporarily, this would leak threads into the host process
|
---|
671 | m_stop = true;
|
---|
672 | m_lock.Signal();
|
---|
673 | m_idleDetectorThread.SetPriority(EPriorityNormal);
|
---|
674 | TRequestStatus s;
|
---|
675 | m_idleDetectorThread.Logon(s);
|
---|
676 | User::WaitForRequest(s);
|
---|
677 | m_idleDetectorThread.Close();
|
---|
678 | m_lock.Close();
|
---|
679 | }
|
---|
680 |
|
---|
681 | void kick()
|
---|
682 | {
|
---|
683 | m_state = STATE_KICKED;
|
---|
684 | m_lock.Signal();
|
---|
685 | }
|
---|
686 |
|
---|
687 | bool hasRun()
|
---|
688 | {
|
---|
689 | return m_state == STATE_RUN;
|
---|
690 | }
|
---|
691 |
|
---|
692 | private:
|
---|
693 | static TInt idleDetectorThreadFunc(TAny* self)
|
---|
694 | {
|
---|
695 | static_cast<QIdleDetectorThread*>(self)->IdleLoop();
|
---|
696 | return KErrNone;
|
---|
697 | }
|
---|
698 |
|
---|
699 | void IdleLoop()
|
---|
700 | {
|
---|
701 | while (!m_stop) {
|
---|
702 | m_lock.Wait();
|
---|
703 | m_state = STATE_RUN;
|
---|
704 | }
|
---|
705 | }
|
---|
706 |
|
---|
707 | private:
|
---|
708 | enum IdleStates {STATE_KICKED, STATE_RUN} m_state;
|
---|
709 | bool m_stop;
|
---|
710 | RThread m_idleDetectorThread;
|
---|
711 | RSemaphore m_lock;
|
---|
712 | };
|
---|
713 |
|
---|
714 | Q_GLOBAL_STATIC(QIdleDetectorThread, idleDetectorThread);
|
---|
715 |
|
---|
716 | const int maxBusyTime = 2000; // maximum time we allow idle detector to be blocked before worrying, in milliseconds
|
---|
717 | const int baseDelay = 1000; // minimum delay time used when backing off to allow idling, in microseconds
|
---|
718 | #endif
|
---|
719 |
|
---|
720 | QEventDispatcherSymbian::QEventDispatcherSymbian(QObject *parent)
|
---|
721 | : QAbstractEventDispatcher(parent),
|
---|
722 | m_selectThread(0),
|
---|
723 | m_activeScheduler(0),
|
---|
724 | m_wakeUpAO(0),
|
---|
725 | m_completeDeferredAOs(0),
|
---|
726 | m_interrupt(false),
|
---|
727 | m_wakeUpDone(0),
|
---|
728 | m_iterationCount(0),
|
---|
729 | m_insideTimerEvent(false),
|
---|
730 | m_noSocketEvents(false)
|
---|
731 | {
|
---|
732 | #ifdef QT_SYMBIAN_PRIORITY_DROP
|
---|
733 | m_delay = baseDelay;
|
---|
734 | m_avgEventTime = 0;
|
---|
735 | idleDetectorThread();
|
---|
736 | #endif
|
---|
737 | }
|
---|
738 |
|
---|
739 | QEventDispatcherSymbian::~QEventDispatcherSymbian()
|
---|
740 | {
|
---|
741 | }
|
---|
742 |
|
---|
743 | void QEventDispatcherSymbian::startingUp()
|
---|
744 | {
|
---|
745 | if( !CActiveScheduler::Current() ) {
|
---|
746 | m_activeScheduler = q_check_ptr(new CQtActiveScheduler()); // CBase derived class needs to be checked on new
|
---|
747 | CActiveScheduler::Install(m_activeScheduler);
|
---|
748 | }
|
---|
749 | m_wakeUpAO = q_check_ptr(new QWakeUpActiveObject(this));
|
---|
750 | m_completeDeferredAOs = q_check_ptr(new QCompleteDeferredAOs(this));
|
---|
751 | // We already might have posted events, wakeup once to process them
|
---|
752 | wakeUp();
|
---|
753 | }
|
---|
754 |
|
---|
755 | QSelectThread& QEventDispatcherSymbian::selectThread() {
|
---|
756 | if (!m_selectThread)
|
---|
757 | m_selectThread = new QSelectThread;
|
---|
758 | return *m_selectThread;
|
---|
759 | }
|
---|
760 |
|
---|
761 | void QEventDispatcherSymbian::closingDown()
|
---|
762 | {
|
---|
763 | if (m_selectThread && m_selectThread->isRunning()) {
|
---|
764 | m_selectThread->stop();
|
---|
765 | }
|
---|
766 | delete m_selectThread;
|
---|
767 | m_selectThread = 0;
|
---|
768 |
|
---|
769 | delete m_completeDeferredAOs;
|
---|
770 | delete m_wakeUpAO;
|
---|
771 | if (m_activeScheduler) {
|
---|
772 | delete m_activeScheduler;
|
---|
773 | }
|
---|
774 | }
|
---|
775 |
|
---|
776 | bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags flags )
|
---|
777 | {
|
---|
778 | bool handledAnyEvent = false;
|
---|
779 | bool oldNoSocketEventsValue = m_noSocketEvents;
|
---|
780 | bool oldInsideTimerEventValue = m_insideTimerEvent;
|
---|
781 |
|
---|
782 | m_insideTimerEvent = false;
|
---|
783 |
|
---|
784 | QT_TRY {
|
---|
785 | Q_D(QAbstractEventDispatcher);
|
---|
786 |
|
---|
787 | // It is safe if this counter overflows. The main importance is that each
|
---|
788 | // iteration count is different from the last.
|
---|
789 | m_iterationCount++;
|
---|
790 |
|
---|
791 | RThread &thread = d->threadData->symbian_thread_handle;
|
---|
792 |
|
---|
793 | bool block;
|
---|
794 | if (flags & QEventLoop::WaitForMoreEvents) {
|
---|
795 | block = true;
|
---|
796 | emit aboutToBlock();
|
---|
797 | } else {
|
---|
798 | block = false;
|
---|
799 | }
|
---|
800 |
|
---|
801 | if (flags & QEventLoop::ExcludeSocketNotifiers) {
|
---|
802 | m_noSocketEvents = true;
|
---|
803 | } else {
|
---|
804 | m_noSocketEvents = false;
|
---|
805 | handledAnyEvent = sendDeferredSocketEvents();
|
---|
806 | }
|
---|
807 |
|
---|
808 | bool handledSymbianEvent = false;
|
---|
809 | m_interrupt = false;
|
---|
810 |
|
---|
811 | #ifdef QT_SYMBIAN_PRIORITY_DROP
|
---|
812 | QTime eventTimer;
|
---|
813 | #endif
|
---|
814 |
|
---|
815 | while (1) {
|
---|
816 | if (block) {
|
---|
817 | // This is where Qt will spend most of its time.
|
---|
818 | CActiveScheduler::Current()->WaitForAnyRequest();
|
---|
819 | } else {
|
---|
820 | if (thread.RequestCount() == 0) {
|
---|
821 | break;
|
---|
822 | }
|
---|
823 | // This one should return without delay.
|
---|
824 | CActiveScheduler::Current()->WaitForAnyRequest();
|
---|
825 | }
|
---|
826 |
|
---|
827 | #ifdef QT_SYMBIAN_PRIORITY_DROP
|
---|
828 | if (idleDetectorThread()->hasRun()) {
|
---|
829 | if (m_delay > baseDelay)
|
---|
830 | m_delay -= baseDelay;
|
---|
831 | m_lastIdleRequestTimer.start();
|
---|
832 | idleDetectorThread()->kick();
|
---|
833 | } else if (m_lastIdleRequestTimer.elapsed() > maxBusyTime) {
|
---|
834 | User::AfterHighRes(m_delay);
|
---|
835 | // allow delay to be up to 1/4 of execution time
|
---|
836 | if (!idleDetectorThread()->hasRun() && m_delay*3 < m_avgEventTime)
|
---|
837 | m_delay += baseDelay;
|
---|
838 | }
|
---|
839 | eventTimer.start();
|
---|
840 | #endif
|
---|
841 |
|
---|
842 | TInt error;
|
---|
843 | handledSymbianEvent = CActiveScheduler::RunIfReady(error, KMinTInt);
|
---|
844 | if (error) {
|
---|
845 | qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error);
|
---|
846 | CActiveScheduler::Current()->Error(error);
|
---|
847 | }
|
---|
848 |
|
---|
849 | #ifdef QT_SYMBIAN_PRIORITY_DROP
|
---|
850 | int eventDur = eventTimer.elapsed()*1000;
|
---|
851 | // average is calcualted as a 5% decaying exponential average
|
---|
852 | m_avgEventTime = (m_avgEventTime * 95 + eventDur * 5) / 100;
|
---|
853 | #endif
|
---|
854 |
|
---|
855 | if (!handledSymbianEvent) {
|
---|
856 | qFatal("QEventDispatcherSymbian::processEvents(): Caught Symbian stray signal");
|
---|
857 | }
|
---|
858 | handledAnyEvent = true;
|
---|
859 | if (m_interrupt) {
|
---|
860 | break;
|
---|
861 | }
|
---|
862 | block = false;
|
---|
863 | };
|
---|
864 |
|
---|
865 | emit awake();
|
---|
866 | } QT_CATCH (const std::exception& ex) {
|
---|
867 | #ifndef QT_NO_EXCEPTIONS
|
---|
868 | CActiveScheduler::Current()->Error(qt_symbian_exception2Error(ex));
|
---|
869 | #endif
|
---|
870 | }
|
---|
871 |
|
---|
872 | m_noSocketEvents = oldNoSocketEventsValue;
|
---|
873 | m_insideTimerEvent = oldInsideTimerEventValue;
|
---|
874 |
|
---|
875 | return handledAnyEvent;
|
---|
876 | }
|
---|
877 |
|
---|
878 | void QEventDispatcherSymbian::timerFired(int timerId)
|
---|
879 | {
|
---|
880 | QHash<int, SymbianTimerInfoPtr>::iterator i = m_timerList.find(timerId);
|
---|
881 | if (i == m_timerList.end()) {
|
---|
882 | // The timer has been deleted. Ignore this event.
|
---|
883 | return;
|
---|
884 | }
|
---|
885 |
|
---|
886 | SymbianTimerInfoPtr timerInfo = *i;
|
---|
887 |
|
---|
888 | // Prevent infinite timer recursion.
|
---|
889 | if (timerInfo->inTimerEvent) {
|
---|
890 | return;
|
---|
891 | }
|
---|
892 |
|
---|
893 | timerInfo->inTimerEvent = true;
|
---|
894 | bool oldInsideTimerEventValue = m_insideTimerEvent;
|
---|
895 | m_insideTimerEvent = true;
|
---|
896 |
|
---|
897 | QTimerEvent event(timerInfo->timerId);
|
---|
898 | QCoreApplication::sendEvent(timerInfo->receiver, &event);
|
---|
899 |
|
---|
900 | m_insideTimerEvent = oldInsideTimerEventValue;
|
---|
901 | timerInfo->inTimerEvent = false;
|
---|
902 |
|
---|
903 | return;
|
---|
904 | }
|
---|
905 |
|
---|
906 | void QEventDispatcherSymbian::socketFired(QSocketActiveObject *socketAO)
|
---|
907 | {
|
---|
908 | if (m_noSocketEvents) {
|
---|
909 | m_deferredSocketEvents.append(socketAO);
|
---|
910 | return;
|
---|
911 | }
|
---|
912 |
|
---|
913 | QEvent e(QEvent::SockAct);
|
---|
914 | socketAO->m_inSocketEvent = true;
|
---|
915 | QCoreApplication::sendEvent(socketAO->m_notifier, &e);
|
---|
916 | socketAO->m_inSocketEvent = false;
|
---|
917 |
|
---|
918 | if (socketAO->m_deleteLater) {
|
---|
919 | delete socketAO;
|
---|
920 | } else {
|
---|
921 | socketAO->iStatus = KRequestPending;
|
---|
922 | socketAO->SetActive();
|
---|
923 | reactivateSocketNotifier(socketAO->m_notifier);
|
---|
924 | }
|
---|
925 | }
|
---|
926 |
|
---|
927 | void QEventDispatcherSymbian::wakeUpWasCalled()
|
---|
928 | {
|
---|
929 | // The reactivation should happen in RunL, right before the call to this function.
|
---|
930 | // This is because m_wakeUpDone is the "signal" that the object can be completed
|
---|
931 | // once more.
|
---|
932 | // Also, by dispatching the posted events after resetting m_wakeUpDone, we guarantee
|
---|
933 | // that no posted event notification will be lost. If we did it the other way
|
---|
934 | // around, it would be possible for another thread to post an event right after
|
---|
935 | // the sendPostedEvents was done, but before the object was ready to be completed
|
---|
936 | // again. This could deadlock the application if there are no other posted events.
|
---|
937 | m_wakeUpDone.fetchAndStoreOrdered(0);
|
---|
938 | sendPostedEvents();
|
---|
939 | }
|
---|
940 |
|
---|
941 | void QEventDispatcherSymbian::interrupt()
|
---|
942 | {
|
---|
943 | m_interrupt = true;
|
---|
944 | wakeUp();
|
---|
945 | }
|
---|
946 |
|
---|
947 | void QEventDispatcherSymbian::wakeUp()
|
---|
948 | {
|
---|
949 | Q_D(QAbstractEventDispatcher);
|
---|
950 |
|
---|
951 | if (m_wakeUpAO && m_wakeUpDone.testAndSetAcquire(0, 1)) {
|
---|
952 | TRequestStatus *status = &m_wakeUpAO->iStatus;
|
---|
953 | QEventDispatcherSymbian::RequestComplete(d->threadData->symbian_thread_handle, status, KErrNone);
|
---|
954 | }
|
---|
955 | }
|
---|
956 |
|
---|
957 | bool QEventDispatcherSymbian::sendPostedEvents()
|
---|
958 | {
|
---|
959 | Q_D(QAbstractEventDispatcher);
|
---|
960 |
|
---|
961 | // moveToThread calls this and canWait == true -> Events will never get processed
|
---|
962 | // if we check for d->threadData->canWait
|
---|
963 | //
|
---|
964 | // QCoreApplication::postEvent sets canWait = false, but after the object and events
|
---|
965 | // are moved to a new thread, the canWait in new thread is true i.e. not changed to reflect
|
---|
966 | // the flag on old thread. That's why events in a new thread will not get processed.
|
---|
967 | // This migth be actually bug in moveToThread functionality, but because other platforms
|
---|
968 | // do not check canWait in wakeUp (where we essentially are now) - decided to remove it from
|
---|
969 | // here as well.
|
---|
970 |
|
---|
971 | //if (!d->threadData->canWait) {
|
---|
972 | QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
|
---|
973 | return true;
|
---|
974 | //}
|
---|
975 | //return false;
|
---|
976 | }
|
---|
977 |
|
---|
978 | inline void QEventDispatcherSymbian::addDeferredActiveObject(QActiveObject *object)
|
---|
979 | {
|
---|
980 | queueDeferredActiveObjectsCompletion();
|
---|
981 | m_deferredActiveObjects.append(object);
|
---|
982 | }
|
---|
983 |
|
---|
984 | inline void QEventDispatcherSymbian::removeDeferredActiveObject(QActiveObject *object)
|
---|
985 | {
|
---|
986 | m_deferredActiveObjects.removeAll(object);
|
---|
987 | }
|
---|
988 |
|
---|
989 | void QEventDispatcherSymbian::queueDeferredActiveObjectsCompletion()
|
---|
990 | {
|
---|
991 | m_completeDeferredAOs->complete();
|
---|
992 | }
|
---|
993 |
|
---|
994 | void QEventDispatcherSymbian::reactivateDeferredActiveObjects()
|
---|
995 | {
|
---|
996 | while (!m_deferredActiveObjects.isEmpty()) {
|
---|
997 | QActiveObject *object = m_deferredActiveObjects.takeFirst();
|
---|
998 | object->reactivateAndComplete();
|
---|
999 | }
|
---|
1000 |
|
---|
1001 | // We do this because we want to return from processEvents. This is because
|
---|
1002 | // each invocation of processEvents should only run each active object once.
|
---|
1003 | // The active scheduler should run them continously, however.
|
---|
1004 | m_interrupt = true;
|
---|
1005 | }
|
---|
1006 |
|
---|
1007 | bool QEventDispatcherSymbian::sendDeferredSocketEvents()
|
---|
1008 | {
|
---|
1009 | bool sentAnyEvents = false;
|
---|
1010 | while (!m_deferredSocketEvents.isEmpty()) {
|
---|
1011 | sentAnyEvents = true;
|
---|
1012 | socketFired(m_deferredSocketEvents.takeFirst());
|
---|
1013 | }
|
---|
1014 |
|
---|
1015 | return sentAnyEvents;
|
---|
1016 | }
|
---|
1017 |
|
---|
1018 | void QEventDispatcherSymbian::flush()
|
---|
1019 | {
|
---|
1020 | }
|
---|
1021 |
|
---|
1022 | bool QEventDispatcherSymbian::hasPendingEvents()
|
---|
1023 | {
|
---|
1024 | Q_D(QAbstractEventDispatcher);
|
---|
1025 | return (d->threadData->symbian_thread_handle.RequestCount() != 0
|
---|
1026 | || !d->threadData->canWait || !m_deferredSocketEvents.isEmpty());
|
---|
1027 | }
|
---|
1028 |
|
---|
1029 | void QEventDispatcherSymbian::registerSocketNotifier ( QSocketNotifier * notifier )
|
---|
1030 | {
|
---|
1031 | QSocketActiveObject *socketAO = q_check_ptr(new QSocketActiveObject(this, notifier));
|
---|
1032 | m_notifiers.insert(notifier, socketAO);
|
---|
1033 | selectThread().requestSocketEvents(notifier, &socketAO->iStatus);
|
---|
1034 | }
|
---|
1035 |
|
---|
1036 | void QEventDispatcherSymbian::unregisterSocketNotifier ( QSocketNotifier * notifier )
|
---|
1037 | {
|
---|
1038 | if (m_selectThread)
|
---|
1039 | m_selectThread->cancelSocketEvents(notifier);
|
---|
1040 | if (m_notifiers.contains(notifier)) {
|
---|
1041 | QSocketActiveObject *sockObj = *m_notifiers.find(notifier);
|
---|
1042 | m_deferredSocketEvents.removeAll(sockObj);
|
---|
1043 | sockObj->deleteLater();
|
---|
1044 | m_notifiers.remove(notifier);
|
---|
1045 | }
|
---|
1046 | }
|
---|
1047 |
|
---|
1048 | void QEventDispatcherSymbian::reactivateSocketNotifier(QSocketNotifier *notifier)
|
---|
1049 | {
|
---|
1050 | selectThread().requestSocketEvents(notifier, &m_notifiers[notifier]->iStatus);
|
---|
1051 | }
|
---|
1052 |
|
---|
1053 | void QEventDispatcherSymbian::registerTimer ( int timerId, int interval, QObject * object )
|
---|
1054 | {
|
---|
1055 | if (interval < 0) {
|
---|
1056 | qWarning("Timer interval < 0");
|
---|
1057 | interval = 0;
|
---|
1058 | }
|
---|
1059 |
|
---|
1060 | SymbianTimerInfoPtr timer(new SymbianTimerInfo);
|
---|
1061 | timer->timerId = timerId;
|
---|
1062 | timer->interval = interval;
|
---|
1063 | timer->inTimerEvent = false;
|
---|
1064 | timer->receiver = object;
|
---|
1065 | timer->dispatcher = this;
|
---|
1066 | timer->timerAO = q_check_ptr(new QTimerActiveObject(this, timer.data()));
|
---|
1067 | m_timerList.insert(timerId, timer);
|
---|
1068 |
|
---|
1069 | timer->timerAO->Start();
|
---|
1070 |
|
---|
1071 | if (m_insideTimerEvent)
|
---|
1072 | // If we are inside a timer event, we need to prevent event starvation
|
---|
1073 | // by preventing newly created timers from running in the same event processing
|
---|
1074 | // iteration. Do this by calling the maybeQueueForLater() function to "fake" that we have
|
---|
1075 | // already run once. This will cause the next run to be added to the deferred
|
---|
1076 | // queue instead.
|
---|
1077 | timer->timerAO->maybeQueueForLater();
|
---|
1078 | }
|
---|
1079 |
|
---|
1080 | bool QEventDispatcherSymbian::unregisterTimer ( int timerId )
|
---|
1081 | {
|
---|
1082 | if (!m_timerList.contains(timerId)) {
|
---|
1083 | return false;
|
---|
1084 | }
|
---|
1085 |
|
---|
1086 | SymbianTimerInfoPtr timerInfo = m_timerList.take(timerId);
|
---|
1087 |
|
---|
1088 | if (!QObjectPrivate::get(timerInfo->receiver)->inThreadChangeEvent)
|
---|
1089 | QAbstractEventDispatcherPrivate::releaseTimerId(timerId);
|
---|
1090 |
|
---|
1091 | return true;
|
---|
1092 | }
|
---|
1093 |
|
---|
1094 | bool QEventDispatcherSymbian::unregisterTimers ( QObject * object )
|
---|
1095 | {
|
---|
1096 | if (m_timerList.isEmpty())
|
---|
1097 | return false;
|
---|
1098 |
|
---|
1099 | bool unregistered = false;
|
---|
1100 | for (QHash<int, SymbianTimerInfoPtr>::iterator i = m_timerList.begin(); i != m_timerList.end(); ) {
|
---|
1101 | if ((*i)->receiver == object) {
|
---|
1102 | i = m_timerList.erase(i);
|
---|
1103 | unregistered = true;
|
---|
1104 | } else {
|
---|
1105 | ++i;
|
---|
1106 | }
|
---|
1107 | }
|
---|
1108 |
|
---|
1109 | return unregistered;
|
---|
1110 | }
|
---|
1111 |
|
---|
1112 | QList<QEventDispatcherSymbian::TimerInfo> QEventDispatcherSymbian::registeredTimers ( QObject * object ) const
|
---|
1113 | {
|
---|
1114 | QList<TimerInfo> list;
|
---|
1115 | for (QHash<int, SymbianTimerInfoPtr>::const_iterator i = m_timerList.begin(); i != m_timerList.end(); ++i) {
|
---|
1116 | if ((*i)->receiver == object) {
|
---|
1117 | list.push_back(TimerInfo((*i)->timerId, (*i)->interval));
|
---|
1118 | }
|
---|
1119 | }
|
---|
1120 |
|
---|
1121 | return list;
|
---|
1122 | }
|
---|
1123 |
|
---|
1124 | /*
|
---|
1125 | * This active scheduler class implements a simple report and continue policy, for Symbian OS leaves
|
---|
1126 | * or exceptions from Qt that fall back to the scheduler.
|
---|
1127 | * It will be used in cases where there is no existing active scheduler installed.
|
---|
1128 | * Apps which link to qts60main.lib will have the UI active scheduler installed in the main thread
|
---|
1129 | * instead of this one. But this would be used in other threads in the UI.
|
---|
1130 | * An app could replace this behaviour by installing an alternative active scheduler.
|
---|
1131 | */
|
---|
1132 | void CQtActiveScheduler::Error(TInt aError) const
|
---|
1133 | {
|
---|
1134 | QT_TRY {
|
---|
1135 | qWarning("Error from active scheduler %d", aError);
|
---|
1136 | }
|
---|
1137 | QT_CATCH (const std::bad_alloc&) {} // ignore alloc fails, nothing more can be done
|
---|
1138 | }
|
---|
1139 |
|
---|
1140 | QT_END_NAMESPACE
|
---|
1141 |
|
---|
1142 | #include "moc_qeventdispatcher_symbian_p.cpp"
|
---|