Mercurial > sdl-ios-xcode
annotate docs/html/sdlsempost.html @ 693:6c119628180d
Date: Sat, 16 Aug 2003 16:22:56 +0300
From: "Mike Gorchak"
Subject: Package building for QNX6
I'm just completed the package description file for QNX6 - qpg, it is like a\
.spec files for Linux. Please place SDL.qpg.in file in the root of the proj\
ect, where .spec file is placed. And sdl12qpg.diff - just adding the SDL.qpg\
.in. The same for the SDL_image. I'm planning to add .qpg files creation for\
all SDL* projects.
As for shared library building for QNX6. It is very hard to improve the exis\
ting libtool code to support QNX shared libraries. Much easyiest is to remov\
e libtool.m4 code from the acinclude.m4 for those persons, who building shar\
ed libraries for QNX6. I'm described all what they need to do with .so under\
QNX6 in the README.QNX file. And 90% of people used the precompiled librari\
es, so I think it is not big problem :)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 23 Aug 2003 23:25:46 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_SemPost</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Multi-threaded Programming" | |
| 14 HREF="thread.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_SemWaitTimeout" | |
| 17 HREF="sdlsemwaittimeout.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_SemValue" | |
| 20 HREF="sdlsemvalue.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
| 31 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="sdlsemwaittimeout.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 ></TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="sdlsemvalue.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLSEMPOST" | |
| 71 >SDL_SemPost</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN7782" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_SemPost -- Unlock a semaphore.</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN7785" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN7786" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h" | |
| 98 #include "SDL_thread.h"</PRE | |
| 99 ><P | |
| 100 ><CODE | |
| 101 ><CODE | |
| 102 CLASS="FUNCDEF" | |
| 103 >int <B | |
| 104 CLASS="FSFUNC" | |
| 105 >SDL_SemPost</B | |
| 106 ></CODE | |
| 107 >(SDL_sem *sem);</CODE | |
| 108 ></P | |
| 109 ><P | |
| 110 ></P | |
| 111 ></DIV | |
| 112 ></DIV | |
| 113 ><DIV | |
| 114 CLASS="REFSECT1" | |
| 115 ><A | |
|
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116 NAME="AEN7792" |
| 0 | 117 ></A |
| 118 ><H2 | |
| 119 >Description</H2 | |
| 120 ><P | |
| 121 ><TT | |
| 122 CLASS="FUNCTION" | |
| 123 >SDL_SemPost</TT | |
| 124 > unlocks the semaphore pointed to by | |
| 125 <TT | |
| 126 CLASS="PARAMETER" | |
| 127 ><I | |
| 128 >sem</I | |
| 129 ></TT | |
| 130 > and atomically increments the semaphores value. | |
| 131 Threads that were blocking on the semaphore may be scheduled after this call | |
| 132 succeeds.</P | |
| 133 ><P | |
| 134 ><TT | |
| 135 CLASS="FUNCTION" | |
| 136 >SDL_SemPost</TT | |
| 137 > should be called after a semaphore is locked by a successful call to | |
| 138 <A | |
| 139 HREF="sdlsemwait.html" | |
| 140 >SDL_SemWait</A | |
| 141 >, | |
| 142 <A | |
| 143 HREF="sdlsemtrywait.html" | |
| 144 >SDL_SemTryWait</A | |
| 145 > or | |
| 146 <A | |
| 147 HREF="sdlsemwaittimeout.html" | |
| 148 >SDL_SemWaitTimeout</A | |
| 149 >.</P | |
| 150 ></DIV | |
| 151 ><DIV | |
| 152 CLASS="REFSECT1" | |
| 153 ><A | |
|
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154 NAME="AEN7802" |
| 0 | 155 ></A |
| 156 ><H2 | |
| 157 >Return Value</H2 | |
| 158 ><P | |
| 159 >Returns <SPAN | |
| 160 CLASS="RETURNVALUE" | |
| 161 >0</SPAN | |
| 162 > if successful or | |
| 163 <SPAN | |
| 164 CLASS="RETURNVALUE" | |
| 165 >-1</SPAN | |
| 166 > if there was an error (leaving the semaphore unchanged).</P | |
| 167 ></DIV | |
| 168 ><DIV | |
| 169 CLASS="REFSECT1" | |
| 170 ><A | |
|
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171 NAME="AEN7807" |
| 0 | 172 ></A |
| 173 ><H2 | |
| 174 >Examples</H2 | |
| 175 ><P | |
| 176 ><PRE | |
| 177 CLASS="PROGRAMLISTING" | |
| 178 >SDL_SemPost(my_sem);</PRE | |
| 179 ></P | |
| 180 ></DIV | |
| 181 ><DIV | |
| 182 CLASS="REFSECT1" | |
| 183 ><A | |
|
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184 NAME="AEN7811" |
| 0 | 185 ></A |
| 186 ><H2 | |
| 187 >See Also</H2 | |
| 188 ><P | |
| 189 ><A | |
| 190 HREF="sdlcreatesemaphore.html" | |
| 191 ><TT | |
| 192 CLASS="FUNCTION" | |
| 193 >SDL_CreateSemaphore</TT | |
| 194 ></A | |
| 195 >, | |
| 196 <A | |
| 197 HREF="sdldestroysemaphore.html" | |
| 198 ><TT | |
| 199 CLASS="FUNCTION" | |
| 200 >SDL_DestroySemaphore</TT | |
| 201 ></A | |
| 202 >, | |
| 203 <A | |
| 204 HREF="sdlsemwait.html" | |
| 205 ><TT | |
| 206 CLASS="FUNCTION" | |
| 207 >SDL_SemWait</TT | |
| 208 ></A | |
| 209 >, | |
| 210 <A | |
| 211 HREF="sdlsemtrywait.html" | |
| 212 ><TT | |
| 213 CLASS="FUNCTION" | |
| 214 >SDL_SemTryWait</TT | |
| 215 ></A | |
| 216 >, | |
| 217 <A | |
| 218 HREF="sdlsemwaittimeout.html" | |
| 219 ><TT | |
| 220 CLASS="FUNCTION" | |
| 221 >SDL_SemWaitTimeout</TT | |
| 222 ></A | |
| 223 >, | |
| 224 <A | |
| 225 HREF="sdlsemvalue.html" | |
| 226 ><TT | |
| 227 CLASS="FUNCTION" | |
| 228 >SDL_SemValue</TT | |
| 229 ></A | |
| 230 ></P | |
| 231 ></DIV | |
| 232 ><DIV | |
| 233 CLASS="NAVFOOTER" | |
| 234 ><HR | |
| 235 ALIGN="LEFT" | |
| 236 WIDTH="100%"><TABLE | |
| 237 WIDTH="100%" | |
| 238 BORDER="0" | |
| 239 CELLPADDING="0" | |
| 240 CELLSPACING="0" | |
| 241 ><TR | |
| 242 ><TD | |
| 243 WIDTH="33%" | |
| 244 ALIGN="left" | |
| 245 VALIGN="top" | |
| 246 ><A | |
| 247 HREF="sdlsemwaittimeout.html" | |
| 248 >Prev</A | |
| 249 ></TD | |
| 250 ><TD | |
| 251 WIDTH="34%" | |
| 252 ALIGN="center" | |
| 253 VALIGN="top" | |
| 254 ><A | |
| 255 HREF="index.html" | |
| 256 >Home</A | |
| 257 ></TD | |
| 258 ><TD | |
| 259 WIDTH="33%" | |
| 260 ALIGN="right" | |
| 261 VALIGN="top" | |
| 262 ><A | |
| 263 HREF="sdlsemvalue.html" | |
| 264 >Next</A | |
| 265 ></TD | |
| 266 ></TR | |
| 267 ><TR | |
| 268 ><TD | |
| 269 WIDTH="33%" | |
| 270 ALIGN="left" | |
| 271 VALIGN="top" | |
| 272 >SDL_SemWaitTimeout</TD | |
| 273 ><TD | |
| 274 WIDTH="34%" | |
| 275 ALIGN="center" | |
| 276 VALIGN="top" | |
| 277 ><A | |
| 278 HREF="thread.html" | |
| 279 >Up</A | |
| 280 ></TD | |
| 281 ><TD | |
| 282 WIDTH="33%" | |
| 283 ALIGN="right" | |
| 284 VALIGN="top" | |
| 285 >SDL_SemValue</TD | |
| 286 ></TR | |
| 287 ></TABLE | |
| 288 ></DIV | |
| 289 ></BODY | |
| 290 ></HTML | |
| 291 > |