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4 >SDL_SemValue</TITLE |
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40 >SDL Library Documentation</TH |
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69 ALIGN="LEFT" |
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70 WIDTH="100%"></DIV |
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71 ><H1 |
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72 ><A |
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73 NAME="SDLSEMVALUE" |
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74 ></A |
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75 >SDL_SemValue</H1 |
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76 ><DIV |
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77 CLASS="REFNAMEDIV" |
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78 ><A |
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79 NAME="AEN8218" |
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80 ></A |
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81 ><H2 |
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82 >Name</H2 |
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83 >SDL_SemValue -- Return the current value of a semaphore.</DIV |
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84 ><DIV |
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85 CLASS="REFSYNOPSISDIV" |
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86 ><A |
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87 NAME="AEN8221" |
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88 ></A |
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89 ><H2 |
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90 >Synopsis</H2 |
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92 CLASS="FUNCSYNOPSIS" |
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94 NAME="AEN8222" |
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95 ></A |
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96 ><P |
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97 ></P |
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98 ><PRE |
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99 CLASS="FUNCSYNOPSISINFO" |
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100 >#include "SDL.h" |
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101 #include "SDL/SDL_thread.h"</PRE |
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102 ><P |
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103 ><CODE |
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104 ><CODE |
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105 CLASS="FUNCDEF" |
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106 >Uint32 <B |
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107 CLASS="FSFUNC" |
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108 >SDL_SemValue</B |
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109 ></CODE |
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110 >(SDL_sem *sem);</CODE |
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111 ></P |
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112 ><P |
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113 ></P |
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114 ></DIV |
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117 CLASS="REFSECT1" |
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118 ><A |
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119 NAME="AEN8228" |
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120 ></A |
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121 ><H2 |
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122 >Description</H2 |
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123 ><P |
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124 ><TT |
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125 CLASS="FUNCTION" |
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126 >SDL_SemValue()</TT |
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127 > returns the current semaphore value from |
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128 the semaphore pointed to by <TT |
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129 CLASS="PARAMETER" |
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130 ><I |
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131 >sem</I |
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132 ></TT |
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133 >.</P |
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136 CLASS="REFSECT1" |
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137 ><A |
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138 NAME="AEN8233" |
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139 ></A |
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140 ><H2 |
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141 >Return Value</H2 |
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142 ><P |
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143 >Returns current value of the semaphore.</P |
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144 ></DIV |
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145 ><DIV |
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146 CLASS="REFSECT1" |
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147 ><A |
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148 NAME="AEN8236" |
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149 ></A |
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150 ><H2 |
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151 >Examples</H2 |
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152 ><P |
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153 ><PRE |
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154 CLASS="PROGRAMLISTING" |
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155 > sem_value = SDL_SemValue(my_sem);</PRE |
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156 ></P |
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157 ></DIV |
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158 ><DIV |
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159 CLASS="REFSECT1" |
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160 ><A |
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161 NAME="AEN8240" |
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162 ></A |
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163 ><H2 |
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164 >See Also</H2 |
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165 ><P |
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166 ><A |
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167 HREF="sdlcreatesemaphore.html" |
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168 ><TT |
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169 CLASS="FUNCTION" |
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170 >SDL_CreateSemaphore</TT |
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171 ></A |
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172 >, |
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173 <A |
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174 HREF="sdldestroysemaphore.html" |
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175 ><TT |
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176 CLASS="FUNCTION" |
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177 >SDL_DestroySemaphore</TT |
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178 ></A |
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179 >, |
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180 <A |
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181 HREF="sdlsemwait.html" |
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182 ><TT |
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183 CLASS="FUNCTION" |
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184 >SDL_SemWait</TT |
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185 ></A |
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186 >, |
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187 <A |
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188 HREF="sdlsemtrywait.html" |
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189 ><TT |
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190 CLASS="FUNCTION" |
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191 >SDL_SemTryWait</TT |
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192 ></A |
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193 >, |
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194 <A |
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195 HREF="sdlsemwaittimeout.html" |
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196 ><TT |
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197 CLASS="FUNCTION" |
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198 >SDL_SemWaitTimeout</TT |
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199 ></A |
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200 >, |
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201 <A |
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202 HREF="sdlsempost.html" |
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203 ><TT |
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204 CLASS="FUNCTION" |
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205 >SDL_SemPost</TT |
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206 ></A |
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207 ></P |
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