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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtDBus module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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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 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 #ifndef QDBUSTHREADDEBUG_P_H |
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42 #define QDBUSTHREADDEBUG_P_H |
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43 |
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44 // |
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45 // W A R N I N G |
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46 // ------------- |
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47 // |
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48 // This file is not part of the Qt API. It exists purely as an |
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49 // implementation detail. This header file may change from version to |
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50 // version without notice, or even be removed. |
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51 // |
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52 // We mean it. |
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53 // |
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54 |
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55 #if !defined(QDBUS_THREAD_DEBUG) && defined(QT_BUILD_INTERNAL) |
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56 # define QDBUS_THREAD_DEBUG 1 |
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57 #endif |
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58 |
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59 #if QDBUS_THREAD_DEBUG |
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60 QT_BEGIN_NAMESPACE |
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61 typedef void (*qdbusThreadDebugFunc)(int, int, QDBusConnectionPrivate *); |
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62 QDBUS_EXPORT void qdbusDefaultThreadDebug(int, int, QDBusConnectionPrivate *); |
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63 extern QDBUS_EXPORT qdbusThreadDebugFunc qdbusThreadDebug; |
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64 QT_END_NAMESPACE |
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65 #endif |
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66 |
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67 enum ThreadAction { |
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68 ConnectAction = 0, |
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69 DisconnectAction = 1, |
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70 RegisterObjectAction = 2, |
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71 UnregisterObjectAction = 3, |
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72 ObjectRegisteredAtAction = 4, |
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73 |
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74 CloseConnectionAction = 10, |
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75 ObjectDestroyedAction = 11, |
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76 RelaySignalAction = 12, |
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77 HandleObjectCallAction = 13, |
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78 HandleSignalAction = 14, |
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79 ConnectRelayAction = 15, |
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80 DisconnectRelayAction = 16, |
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81 FindMetaObject1Action = 17, |
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82 FindMetaObject2Action = 18, |
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83 RegisterServiceAction = 19, |
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84 UnregisterServiceAction = 20, |
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85 UpdateSignalHookOwnerAction = 21, |
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86 HandleObjectCallPostEventAction = 22, |
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87 HandleObjectCallSemaphoreAction = 23, |
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88 DoDispatchAction = 24, |
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89 SendWithReplyAsyncAction = 25, |
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90 MessageResultReceivedAction = 26, |
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91 ActivateSignalAction = 27, |
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92 PendingCallBlockAction = 28, |
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93 |
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94 AddTimeoutAction = 50, |
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95 RealAddTimeoutAction = 51, |
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96 RemoveTimeoutAction = 52, |
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97 KillTimerAction = 58, |
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98 TimerEventAction = 59, |
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99 AddWatchAction = 60, |
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100 RemoveWatchAction = 61, |
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101 ToggleWatchAction = 62, |
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102 SocketReadAction = 63, |
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103 SocketWriteAction = 64 |
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104 }; |
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105 |
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106 struct QDBusLockerBase |
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107 { |
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108 enum Condition |
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109 { |
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110 BeforeLock, |
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111 AfterLock, |
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112 BeforeUnlock, |
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113 AfterUnlock, |
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114 |
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115 BeforePost, |
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116 AfterPost, |
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117 BeforeDeliver, |
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118 AfterDeliver, |
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119 |
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120 BeforeAcquire, |
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121 AfterAcquire, |
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122 BeforeRelease, |
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123 AfterRelease |
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124 }; |
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125 |
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126 #if QDBUS_THREAD_DEBUG |
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127 static inline void reportThreadAction(int action, int condition, QDBusConnectionPrivate *ptr) |
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128 { if (qdbusThreadDebug) qdbusThreadDebug(action, condition, ptr); } |
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129 #else |
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130 static inline void reportThreadAction(int, int, QDBusConnectionPrivate *) { } |
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131 #endif |
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132 }; |
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133 |
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134 struct QDBusReadLocker: QDBusLockerBase |
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135 { |
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136 QDBusConnectionPrivate *self; |
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137 ThreadAction action; |
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138 inline QDBusReadLocker(ThreadAction a, QDBusConnectionPrivate *s) |
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139 : self(s), action(a) |
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140 { |
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141 reportThreadAction(action, BeforeLock, self); |
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142 self->lock.lockForRead(); |
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143 reportThreadAction(action, AfterLock, self); |
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144 } |
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145 |
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146 inline ~QDBusReadLocker() |
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147 { |
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148 reportThreadAction(action, BeforeUnlock, self); |
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149 self->lock.unlock(); |
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150 reportThreadAction(action, AfterUnlock, self); |
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151 } |
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152 }; |
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153 |
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154 struct QDBusWriteLocker: QDBusLockerBase |
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155 { |
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156 QDBusConnectionPrivate *self; |
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157 ThreadAction action; |
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158 inline QDBusWriteLocker(ThreadAction a, QDBusConnectionPrivate *s) |
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159 : self(s), action(a) |
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160 { |
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161 reportThreadAction(action, BeforeLock, self); |
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162 self->lock.lockForWrite(); |
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163 reportThreadAction(action, AfterLock, self); |
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164 } |
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165 |
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166 inline ~QDBusWriteLocker() |
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167 { |
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168 reportThreadAction(action, BeforeUnlock, self); |
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169 self->lock.unlock(); |
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170 reportThreadAction(action, AfterUnlock, self); |
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171 } |
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172 }; |
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173 |
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174 struct QDBusMutexLocker: QDBusLockerBase |
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175 { |
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176 QDBusConnectionPrivate *self; |
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177 QMutex *mutex; |
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178 ThreadAction action; |
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179 inline QDBusMutexLocker(ThreadAction a, QDBusConnectionPrivate *s, |
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180 QMutex *m) |
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181 : self(s), mutex(m), action(a) |
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182 { |
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183 reportThreadAction(action, BeforeLock, self); |
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184 mutex->lock(); |
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185 reportThreadAction(action, AfterLock, self); |
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186 } |
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187 |
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188 inline ~QDBusMutexLocker() |
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189 { |
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190 reportThreadAction(action, BeforeUnlock, self); |
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191 mutex->unlock(); |
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192 reportThreadAction(action, AfterUnlock, self); |
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193 } |
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194 }; |
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195 |
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196 struct QDBusDispatchLocker: QDBusMutexLocker |
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197 { |
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198 inline QDBusDispatchLocker(ThreadAction a, QDBusConnectionPrivate *s) |
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199 : QDBusMutexLocker(a, s, &s->dispatchLock) |
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200 { } |
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201 }; |
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202 |
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203 struct QDBusWatchAndTimeoutLocker: QDBusMutexLocker |
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204 { |
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205 inline QDBusWatchAndTimeoutLocker(ThreadAction a, QDBusConnectionPrivate *s) |
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206 : QDBusMutexLocker(a, s, &s->watchAndTimeoutLock) |
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207 { } |
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208 }; |
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209 |
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210 #if QDBUS_THREAD_DEBUG |
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211 # define SEM_ACQUIRE(action, sem) \ |
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212 do { \ |
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213 QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::BeforeAcquire, this); \ |
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214 sem.acquire(); \ |
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215 QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterAcquire, this); \ |
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216 } while (0) |
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217 |
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218 # define SEM_RELEASE(action, sem) \ |
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219 do { \ |
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220 QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::BeforeRelease, that); \ |
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221 sem.release(); \ |
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222 QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterRelease, that); \ |
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223 } while (0) |
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224 |
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225 #else |
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226 # define SEM_ACQUIRE(action, sem) sem.acquire() |
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227 # define SEM_RELEASE(action, sem) sem.release() |
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228 #endif |
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229 |
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230 #endif |