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annotate dwt/internal/gtk/c/gthreadtypes.d @ 11:5f725d09c076

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Added dynamic loader from gtkd with cleanup and modifications. Tango only support. No OS.d tie-in yet.
author John Reimer<terminal.node@gmail.com>
date Sat, 05 Jan 2008 15:13:44 -0800
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11
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1 /******************************************************************************
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2
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3 This file is part of gtkD.
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4
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5 gtkD is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU Lesser General Public License as published by
5f725d09c076 Added dynamic loader from gtkd with cleanup and modifications. Tango only support. No OS.d tie-in yet.
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7 the Free Software Foundation; either version 2.1 of the License, or
5f725d09c076 Added dynamic loader from gtkd with cleanup and modifications. Tango only support. No OS.d tie-in yet.
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8 (at your option) any later version.
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9
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10 gtkD is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public License
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16 along with gtkD; if not, write to the Free Software
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
5f725d09c076 Added dynamic loader from gtkd with cleanup and modifications. Tango only support. No OS.d tie-in yet.
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19 ******************************************************************************/
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20
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21 module dwt.internal.gtk.c.gthreadtypes;
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22
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23 public import dwt.internal.gtk.c.glibtypes;
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24
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25 /******************************************************************************
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26
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27 Possible errors of thread related functions.
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28 G_THREAD_ERROR_AGAIN
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29 a thread couldn't be created due to resource
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30 shortage. Try again later.
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31
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32 ******************************************************************************/
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33
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34 public enum GThreadError
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35 {
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36 AGAIN /+* Resource temporarily unavailable +/
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37 }
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38 alias GThreadError ThreadError;
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39
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40 /**
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41 * Specifies the priority of a thread.
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42 * Note
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43 * It is not guaranteed that threads with different priorities really
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44 * behave accordingly. On some systems (e.g. Linux) there are no thread
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45 * priorities. On other systems (e.g. Solaris) there doesn't seem to be
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46 * different scheduling for different priorities. All in all try to avoid
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47 * being dependent on priorities.
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48 * G_THREAD_PRIORITY_LOW
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49 * a priority lower than normal
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50 * G_THREAD_PRIORITY_NORMAL
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51 * the default priority
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52 * G_THREAD_PRIORITY_HIGH
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53 * a priority higher than normal
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54 * G_THREAD_PRIORITY_URGENT
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55 * the highest priority
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56 */
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57 public enum GThreadPriority
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58 {
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59 LOW,
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60 NORMAL,
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61 HIGH,
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62 URGENT
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63 }
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64 alias GThreadPriority ThreadPriority;
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65
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66 /**
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67 * The possible statuses of a one-time initialization function controlled by a GOnce struct.
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68 * G_ONCE_STATUS_NOTCALLED
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69 * the function has not been called yet.
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70 * G_ONCE_STATUS_PROGRESS
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71 * the function call is currently in progress.
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72 * G_ONCE_STATUS_READY
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73 * the function has been called.
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74 * Since 2.4
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75 */
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76 public enum GOnceStatus
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77 {
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78 NOTCALLED,
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79 PROGRESS,
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80 READY
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81 }
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82 alias GOnceStatus OnceStatus;
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83
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84
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85 /**
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86 * This function table is used by g_thread_init() to initialize the
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87 * thread system. The functions in the table are directly used by their
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88 * g_* prepended counterparts (described in this document). For example,
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89 * if you call g_mutex_new() then mutex_new() from the table provided to
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90 * g_thread_init() will be called.
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91 * Note
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92 * Do not use this struct unless you know what you are doing.
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93 */
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94 public struct GThreadFunctions{}
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95 // GMutex* (*mutexNew) (void);
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96 //
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97 // void (*mutexLock) (GMutex *mutex);
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98 //
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99 // int (*mutexTrylock) (GMutex *mutex);
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100 //
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101 // void (*mutexUnlock) (GMutex *mutex);
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102 //
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103 // void (*mutexFree) (GMutex *mutex);
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104 //
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105 // GCond* (*condNew) (void);
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106 //
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107 // void (*condSignal) (GCond *cond);
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108 //
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109 // void (*condBroadcast) (GCond *cond);
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110 //
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111 // void (*condWait) (GCond *cond,
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112 //
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113 // GMutex *mutex);
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114 //
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115 // int (*condTimedWait) (GCond *cond,
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116 //
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117 // GMutex *mutex,
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118 //
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119 // GTimeVal *endTime);
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120 //
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121 // void (*condFree) (GCond *cond);
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122 //
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123 // GPrivate* (*privateNew) (GDestroyNotify destructor);
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124 //
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125 // void* (*privateGet) (GPrivate *privateKey);
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126 //
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127 // void (*privateSet) (GPrivate *privateKey,
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128 //
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129 // void* data);
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130 //
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131 // void (*threadCreate) (GThreadFunc func,
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132 //
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133 // void* data,
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134 //
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135 // uint stackSize,
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136 //
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137 // int joinable,
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138 //
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139 // int bound,
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140 //
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141 // GThreadPriority priority,
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142 //
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143 // void* thread,
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144 //
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145 // GError **error);
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146 //
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147 // void (*threadYield) (void);
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148 //
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149 // void (*threadJoin) (void* thread);
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150 //
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151 // void (*threadExit) (void);
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152 //
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153 // void (*threadSetPriority)(void* thread,
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154 //
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155 // GThreadPriority priority);
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156 //
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157 // void (*threadSelf) (void* thread);
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158 //
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159 // int (*threadEqual) (void* thread1,
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160 //
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161 // void* thread2);
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162 //
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163
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164
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165 /**
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166 * Main Gtk struct.
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167 * The GThread struct represents a running thread. It has three public
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168 * read-only members, but the underlying struct is bigger, so you must
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169 * not copy this struct.
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170 * Note
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171 * Resources for a joinable thread are not fully released until
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172 * g_thread_join() is called for that thread.
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173 */
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174 public struct GThread{}
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175
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176
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177 /**
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178 * The GMutex struct is an opaque data structure to represent a mutex
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179 * (mutual exclusion). It can be used to protect data against shared
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180 * access. Take for example the following function:
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181 * Example2.A function which will not work in a threaded environment
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182 */
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183 public struct GMutex{}
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184
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185
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186 /**
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187 * A GStaticMutex works like a GMutex, but it has one significant
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188 * advantage. It doesn't need to be created at run-time like a GMutex,
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189 * but can be defined at compile-time. Here is a shorter, easier and
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190 * safer version of our give_me_next_number() example:
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191 * Example5.Using GStaticMutex to simplify thread-safe programming
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192 */
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193 public struct GStaticMutex{}
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194
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195
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196 /**
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197 * A GStaticRecMutex works like a GStaticMutex, but it can be locked
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198 * multiple times by one thread. If you enter it n times, you have to
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199 * unlock it n times again to let other threads lock it. An exception is
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200 * the function g_static_rec_mutex_unlock_full(): that allows you to
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201 * unlock a GStaticRecMutex completely returning the depth, (i.e. the
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202 * number of times this mutex was locked). The depth can later be used to
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203 * restore the state of the GStaticRecMutex by calling
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204 * g_static_rec_mutex_lock_full().
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205 * Even though GStaticRecMutex is not opaque, it should only be used with
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206 * the following functions.
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207 * All of the g_static_rec_mutex_* functions can be
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208 * used even if g_thread_init() has not been called. Then they do
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209 * nothing, apart from g_static_rec_mutex_trylock,
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210 * which does nothing but returning TRUE.
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211 */
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212 public struct GStaticRecMutex{}
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213
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214
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215 /**
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216 * The GStaticRWLock struct represents a read-write lock. A read-write
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217 * lock can be used for protecting data that some portions of code only
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218 * read from, while others also write. In such situations it is
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219 * desirable that several readers can read at once, whereas of course
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220 * only one writer may write at a time. Take a look at the following
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221 * example:
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222 * Example7.An array with access functions
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223 */
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224 public struct GStaticRWLock{}
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225
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226
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227 /**
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228 * The GCond struct is an opaque data structure that represents a
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229 * condition. Threads can block on a GCond if they find a certain
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230 * condition to be false. If other threads change the state of this
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231 * condition they signal the GCond, and that causes the waiting threads
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232 * to be woken up.
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233 * Example8.Using GCond to block a thread until a condition is satisfied
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234 * GCond* data_cond = NULL; /+* Must be initialized somewhere +/
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235 * GMutex* data_mutex = NULL; /+* Must be initialized somewhere +/
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236 * gpointer current_data = NULL;
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237 * void push_data (gpointer data)
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238 * {
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239 */
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240 public struct GCond{}
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241
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242
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243 /**
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244 * The GPrivate struct is an opaque data structure to represent a thread
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245 * private data key. Threads can thereby obtain and set a pointer which
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246 * is private to the current thread.
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247 * Take our give_me_next_number() example from above.
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248 * Suppose we don't want current_number to be shared
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249 * between the threads, but instead to be private to each thread. This can be
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250 * done as follows:
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251 * Example9.Using GPrivate for per-thread data
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252 */
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253 public struct GPrivate{}
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254
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255
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256 /**
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257 * A GStaticPrivate works almost like a GPrivate, but it has one
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258 * significant advantage. It doesn't need to be created at run-time like
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259 * a GPrivate, but can be defined at compile-time. This is similar to
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260 * the difference between GMutex and GStaticMutex. Now look at our
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261 * give_me_next_number() example with ""
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262 * Example10.Using GStaticPrivate for per-thread data
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263 */
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264 public struct GStaticPrivate{}
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265
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266
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267 /**
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268 * A GOnce struct controls a one-time initialization
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269 * function. Any one-time initialization function must have its own unique
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270 * GOnce struct.
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271 * volatileGOnceStatusstatus;
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272 * the status of the GOnce
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273 * volatilegpointerretval;
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274 * the value returned by the call to the function, if status
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275 */
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276 public struct GOnce
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277 {
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278 GOnceStatus status;
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279 void* retval;
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280 }
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281
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282
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283 /*
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284 * The G_LOCK_* macros provide a convenient interface to GStaticMutex
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285 * with the advantage that they will expand to nothing in programs
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286 * compiled against a thread-disabled GLib, saving code and memory
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287 * there. G_LOCK_DEFINE defines a lock. It can appear anywhere variable
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288 * definitions may appear in programs, i.e. in the first block of a
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289 * function or outside of functions. The name parameter will be mangled
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290 * to get the name of the GStaticMutex. This means that you can use
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291 * names of existing variables as the parameter - e.g. the name of the
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292 * variable you intent to protect with the lock. Look at our
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293 * give_me_next_number() example using the G_LOCK_* macros:
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294 * Example6.Using the G_LOCK_* convenience macros
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295 * G_LOCK_DEFINE (current_number);
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296 * int give_me_next_number ()
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297 * {
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298 * static int current_number = 0;
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299 * int ret_val;
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300 * G_LOCK (current_number);
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301 * ret_val = current_number = calc_next_number (current_number);
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302 * G_UNLOCK (current_number);
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303 * return ret_val;
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304 * }
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305 * name:
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306 * the name of the lock.
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307 */
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308 // TODO
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309 // #define G_LOCK_DEFINE(name)
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310
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311 /*
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312 * This works like G_LOCK_DEFINE, but it creates a static object.
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313 * name:
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314 * the name of the lock.
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315 */
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316 // TODO
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317 // #define G_LOCK_DEFINE_STATIC(name)
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318
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319 /*
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320 * This declares a lock, that is defined with G_LOCK_DEFINE in another module.
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321 * name:
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322 * the name of the lock.
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323 */
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324 // TODO
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325 // #define G_LOCK_EXTERN(name)
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326
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327 /*
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328 * Works like g_mutex_lock(), but for a lock defined with G_LOCK_DEFINE.
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329 * name:
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330 * the name of the lock.
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331 */
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332 // TODO
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333 // #define G_LOCK(name)
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334
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335 /*
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336 * Works like g_mutex_trylock(), but for a lock defined with G_LOCK_DEFINE.
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337 * name:
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338 * the name of the lock.
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339 * Returns:
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340 * TRUE, if the lock could be locked.
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341 */
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342 // TODO
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343 // #define G_TRYLOCK(name)
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344
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345 /*
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346 * Works like g_mutex_unlock(), but for a lock defined with G_LOCK_DEFINE.
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347 * name:
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348 * the name of the lock.
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349 */
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350 // TODO
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351 // #define G_UNLOCK(name)
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352
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353 /*
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354 * The first call to this routine by a process with a given GOnce struct calls
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355 * func with the given argument. Thereafter, subsequent calls to g_once() with
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356 * the same GOnce struct do not call func again, but return the stored result
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357 * of the first call. On return from g_once(), the status of once will be
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358 * G_ONCE_STATUS_READY.
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359 * For example, a mutex or a thread-specific data key must be created exactly
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360 * once. In a threaded environment, calling g_once() ensures that the
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361 * initialization is serialized across multiple threads.
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362 * Note
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363 * Calling g_once() recursively on the same GOnce struct in func will lead
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364 * to a deadlock.
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365 * gpointer
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366 * get_debug_flags ()
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367 * {
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368 * static GOnce my_once = G_ONCE_INIT;
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369 * g_once (my_once, parse_debug_flags, NULL);
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370 * return my_once.retval;
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371 * }
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372 * once:
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373 * a GOnce structure
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374 * func:
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375 * the GThreadFunc function associated to once. This function is
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376 * called only once, regardless of the number of times it and its
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377 * associated GOnce struct are passed to g_once() .
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378 * arg:
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379 * data to be passed to func
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380 * Since 2.4
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381 */
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382 // TODO
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383 // #define g_once(once, func, arg)
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384
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385 /*
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386 * Specifies the type of the func functions passed to
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387 * g_thread_create() or g_thread_create_full().
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388 * data:
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389 * data passed to the thread.
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390 * Returns:
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391 * the return value of the thread, which will be returned by
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392 * g_thread_join().
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393 */
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394 // gpointer (*GThreadFunc) (gpointer data);
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395 public typedef extern(C) void* function (void*) GThreadFunc;