Mercurial > sdl-ios-xcode
annotate docs/html/sdldestroysemaphore.html @ 753:b14fdadd8311
Date: Thu, 4 Dec 2003 07:48:40 +0200
From: "Mike Gorchak"
Subject: SDL/QNX6 new patch
Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes:
1. Fixed window centering at other than the first consoles.
2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution.
3. Fixed window positioning on other than the first consoles.
4. Fixed occasional input focus lost when switching to fullscreen.
5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink).
6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches).
7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games).
8. Fixed window restore/maximize function. It works, finally.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 10 Dec 2003 12:35:56 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_DestroySemaphore</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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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_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 | |
|
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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 | |
|
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87 NAME="AEN7598" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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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 | |
|
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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 | |
|
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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 | |
|
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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 > |