Mercurial > sdl-ios-xcode
annotate docs/html/sdldestroysemaphore.html @ 610:95433459fbd2
Date: Mon, 14 Apr 2003 22:08:27 +0100
From: Patrice Mandin
Subject: [SDL][PATCH] 2 patches for sdl
Here are 2 patches for SDL:
- One is to put the dummy video drivers at the end of the
video drivers list. It gave me problems, when
SDL_VIDEODRIVER is not set, and the dummy driver is used
instead of the platform's driver, just because it is
always available. So the dummy driver must always be at
the end of the list. I suppose picogui and dc video
drivers also don't work.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 15 Apr 2003 15:46:56 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_DestroySemaphore</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
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_CreateSemaphore" | |
| 17 HREF="sdlcreatesemaphore.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_SemWait" | |
| 20 HREF="sdlsemwait.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="sdlcreatesemaphore.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="sdlsemwait.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="SDLDESTROYSEMAPHORE" | |
| 71 >SDL_DestroySemaphore</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
76 NAME="AEN7594" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_DestroySemaphore -- Destroys a semaphore that was created by <A | |
| 81 HREF="sdlcreatesemaphore.html" | |
| 82 >SDL_CreateSemaphore</A | |
| 83 >.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
87 NAME="AEN7598" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
94 NAME="AEN7599" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h" | |
| 101 #include "SDL_thread.h"</PRE | |
| 102 ><P | |
| 103 ><CODE | |
| 104 ><CODE | |
| 105 CLASS="FUNCDEF" | |
| 106 >void <B | |
| 107 CLASS="FSFUNC" | |
| 108 >SDL_DestroySemaphore</B | |
| 109 ></CODE | |
| 110 >(SDL_sem *sem);</CODE | |
| 111 ></P | |
| 112 ><P | |
| 113 ></P | |
| 114 ></DIV | |
| 115 ></DIV | |
| 116 ><DIV | |
| 117 CLASS="REFSECT1" | |
| 118 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
119 NAME="AEN7605" |
| 0 | 120 ></A |
| 121 ><H2 | |
| 122 >Description</H2 | |
| 123 ><P | |
| 124 ><TT | |
| 125 CLASS="FUNCTION" | |
| 126 >SDL_DestroySemaphore</TT | |
| 127 > destroys the semaphore pointed to | |
| 128 by <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >sem</I | |
| 132 ></TT | |
| 133 > that was created by | |
| 134 <A | |
| 135 HREF="sdlcreatesemaphore.html" | |
| 136 ><TT | |
| 137 CLASS="FUNCTION" | |
| 138 >SDL_CreateSemaphore</TT | |
| 139 ></A | |
| 140 >. | |
| 141 It is not safe to destroy a semaphore if there are threads currently blocked | |
| 142 waiting on it.</P | |
| 143 ></DIV | |
| 144 ><DIV | |
| 145 CLASS="REFSECT1" | |
| 146 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
147 NAME="AEN7612" |
| 0 | 148 ></A |
| 149 ><H2 | |
| 150 >Examples</H2 | |
| 151 ><P | |
| 152 ><PRE | |
| 153 CLASS="PROGRAMLISTING" | |
| 154 >if (my_sem != NULL) { | |
| 155 SDL_DestroySemaphore(my_sem); | |
| 156 my_sem = NULL; | |
| 157 }</PRE | |
| 158 ></P | |
| 159 ></DIV | |
| 160 ><DIV | |
| 161 CLASS="REFSECT1" | |
| 162 ><A | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
163 NAME="AEN7616" |
| 0 | 164 ></A |
| 165 ><H2 | |
| 166 >See Also</H2 | |
| 167 ><P | |
| 168 ><A | |
| 169 HREF="sdlcreatesemaphore.html" | |
| 170 ><TT | |
| 171 CLASS="FUNCTION" | |
| 172 >SDL_CreateSemaphore</TT | |
| 173 ></A | |
| 174 >, | |
| 175 <A | |
| 176 HREF="sdlsemwait.html" | |
| 177 ><TT | |
| 178 CLASS="FUNCTION" | |
| 179 >SDL_SemWait</TT | |
| 180 ></A | |
| 181 >, | |
| 182 <A | |
| 183 HREF="sdlsemtrywait.html" | |
| 184 ><TT | |
| 185 CLASS="FUNCTION" | |
| 186 >SDL_SemTryWait</TT | |
| 187 ></A | |
| 188 >, | |
| 189 <A | |
| 190 HREF="sdlsemwaittimeout.html" | |
| 191 ><TT | |
| 192 CLASS="FUNCTION" | |
| 193 >SDL_SemWaitTimeout</TT | |
| 194 ></A | |
| 195 >, | |
| 196 <A | |
| 197 HREF="sdlsempost.html" | |
| 198 ><TT | |
| 199 CLASS="FUNCTION" | |
| 200 >SDL_SemPost</TT | |
| 201 ></A | |
| 202 >, | |
| 203 <A | |
| 204 HREF="sdlsemvalue.html" | |
| 205 ><TT | |
| 206 CLASS="FUNCTION" | |
| 207 >SDL_SemValue</TT | |
| 208 ></A | |
| 209 ></P | |
| 210 ></DIV | |
| 211 ><DIV | |
| 212 CLASS="NAVFOOTER" | |
| 213 ><HR | |
| 214 ALIGN="LEFT" | |
| 215 WIDTH="100%"><TABLE | |
| 216 WIDTH="100%" | |
| 217 BORDER="0" | |
| 218 CELLPADDING="0" | |
| 219 CELLSPACING="0" | |
| 220 ><TR | |
| 221 ><TD | |
| 222 WIDTH="33%" | |
| 223 ALIGN="left" | |
| 224 VALIGN="top" | |
| 225 ><A | |
| 226 HREF="sdlcreatesemaphore.html" | |
| 227 >Prev</A | |
| 228 ></TD | |
| 229 ><TD | |
| 230 WIDTH="34%" | |
| 231 ALIGN="center" | |
| 232 VALIGN="top" | |
| 233 ><A | |
| 234 HREF="index.html" | |
| 235 >Home</A | |
| 236 ></TD | |
| 237 ><TD | |
| 238 WIDTH="33%" | |
| 239 ALIGN="right" | |
| 240 VALIGN="top" | |
| 241 ><A | |
| 242 HREF="sdlsemwait.html" | |
| 243 >Next</A | |
| 244 ></TD | |
| 245 ></TR | |
| 246 ><TR | |
| 247 ><TD | |
| 248 WIDTH="33%" | |
| 249 ALIGN="left" | |
| 250 VALIGN="top" | |
| 251 >SDL_CreateSemaphore</TD | |
| 252 ><TD | |
| 253 WIDTH="34%" | |
| 254 ALIGN="center" | |
| 255 VALIGN="top" | |
| 256 ><A | |
| 257 HREF="thread.html" | |
| 258 >Up</A | |
| 259 ></TD | |
| 260 ><TD | |
| 261 WIDTH="33%" | |
| 262 ALIGN="right" | |
| 263 VALIGN="top" | |
| 264 >SDL_SemWait</TD | |
| 265 ></TR | |
| 266 ></TABLE | |
| 267 ></DIV | |
| 268 ></BODY | |
| 269 ></HTML | |
| 270 > |