Mercurial > sdl-ios-xcode
annotate docs/html/sdlcreatemutex.html @ 315:3333b6e68289
Date: Sat, 23 Mar 2002 13:53:37 +0200
From: "Mike Gorchak" <mike@malva.ua>
Subject: Big QNX patch again.
Added 8bit palette emulation code for window mode with bpp>=15.
Added store/restore original palette for 8bit modes.
Added more information about photon API call fails.
Rewroten change palette code, slow but works.
Fixed bug with set caption before window was inited.
Fixed bugs with some initial state of variables.
Fixed bug with storing old video mode settings.
Fixed bug with switching to fullscreen mode and back.
Fixed few double SEGFAULTS during parachute mode.
Removed compilation warning with no PgWaitHWIdle prototype.
Removed pack of dead unusable code.
Cleanups SDL_PrivateVideoData structure, some headers.
Some code formatting.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 23 Mar 2002 20:19:44 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CreateMutex</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_KillThread" | |
| 17 HREF="sdlkillthread.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_DestroyMutex" | |
| 20 HREF="sdldestroymutex.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="sdlkillthread.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="sdldestroymutex.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="SDLCREATEMUTEX" | |
| 71 >SDL_CreateMutex</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN7432" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_CreateMutex -- Create a mutex</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN7435" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN7436" |
| 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 >SDL_mutex *<B | |
| 104 CLASS="FSFUNC" | |
| 105 >SDL_CreateMutex</B | |
| 106 ></CODE | |
| 107 >(void);</CODE | |
| 108 ></P | |
| 109 ><P | |
| 110 ></P | |
| 111 ></DIV | |
| 112 ></DIV | |
| 113 ><DIV | |
| 114 CLASS="REFSECT1" | |
| 115 ><A | |
|
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116 NAME="AEN7442" |
| 0 | 117 ></A |
| 118 ><H2 | |
| 119 >Description</H2 | |
| 120 ><P | |
| 121 >Create a new, unlocked mutex.</P | |
| 122 ></DIV | |
| 123 ><DIV | |
| 124 CLASS="REFSECT1" | |
| 125 ><A | |
|
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126 NAME="AEN7445" |
| 0 | 127 ></A |
| 128 ><H2 | |
| 129 >Examples</H2 | |
| 130 ><PRE | |
| 131 CLASS="PROGRAMLISTING" | |
| 132 >SDL_mutex *mut; | |
| 133 | |
| 134 mut=SDL_CreateMutex(); | |
| 135 . | |
| 136 . | |
| 137 if(SDL_mutexP(mut)==-1){ | |
| 138 fprintf(stderr, "Couldn't lock mutex\n"); | |
| 139 exit(-1); | |
| 140 } | |
| 141 . | |
| 142 /* Do stuff while mutex is locked */ | |
| 143 . | |
| 144 . | |
| 145 if(SDL_mutexV(mut)==-1){ | |
| 146 fprintf(stderr, "Couldn't unlock mutex\n"); | |
| 147 exit(-1); | |
| 148 } | |
| 149 | |
| 150 SDL_DestroyMutex(mut); </PRE | |
| 151 ></DIV | |
| 152 ><DIV | |
| 153 CLASS="REFSECT1" | |
| 154 ><A | |
|
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155 NAME="AEN7448" |
| 0 | 156 ></A |
| 157 ><H2 | |
| 158 >See Also</H2 | |
| 159 ><P | |
| 160 ><A | |
| 161 HREF="sdlmutexp.html" | |
| 162 ><TT | |
| 163 CLASS="FUNCTION" | |
| 164 >SDL_mutexP</TT | |
| 165 ></A | |
| 166 >, | |
| 167 <A | |
| 168 HREF="sdlmutexv.html" | |
| 169 ><TT | |
| 170 CLASS="FUNCTION" | |
| 171 >SDL_mutexV</TT | |
| 172 ></A | |
| 173 >, | |
| 174 <A | |
| 175 HREF="sdldestroymutex.html" | |
| 176 ><TT | |
| 177 CLASS="FUNCTION" | |
| 178 >SDL_DestroyMutex</TT | |
| 179 ></A | |
| 180 ></P | |
| 181 ></DIV | |
| 182 ><DIV | |
| 183 CLASS="NAVFOOTER" | |
| 184 ><HR | |
| 185 ALIGN="LEFT" | |
| 186 WIDTH="100%"><TABLE | |
| 187 WIDTH="100%" | |
| 188 BORDER="0" | |
| 189 CELLPADDING="0" | |
| 190 CELLSPACING="0" | |
| 191 ><TR | |
| 192 ><TD | |
| 193 WIDTH="33%" | |
| 194 ALIGN="left" | |
| 195 VALIGN="top" | |
| 196 ><A | |
| 197 HREF="sdlkillthread.html" | |
| 198 >Prev</A | |
| 199 ></TD | |
| 200 ><TD | |
| 201 WIDTH="34%" | |
| 202 ALIGN="center" | |
| 203 VALIGN="top" | |
| 204 ><A | |
| 205 HREF="index.html" | |
| 206 >Home</A | |
| 207 ></TD | |
| 208 ><TD | |
| 209 WIDTH="33%" | |
| 210 ALIGN="right" | |
| 211 VALIGN="top" | |
| 212 ><A | |
| 213 HREF="sdldestroymutex.html" | |
| 214 >Next</A | |
| 215 ></TD | |
| 216 ></TR | |
| 217 ><TR | |
| 218 ><TD | |
| 219 WIDTH="33%" | |
| 220 ALIGN="left" | |
| 221 VALIGN="top" | |
| 222 >SDL_KillThread</TD | |
| 223 ><TD | |
| 224 WIDTH="34%" | |
| 225 ALIGN="center" | |
| 226 VALIGN="top" | |
| 227 ><A | |
| 228 HREF="thread.html" | |
| 229 >Up</A | |
| 230 ></TD | |
| 231 ><TD | |
| 232 WIDTH="33%" | |
| 233 ALIGN="right" | |
| 234 VALIGN="top" | |
| 235 >SDL_DestroyMutex</TD | |
| 236 ></TR | |
| 237 ></TABLE | |
| 238 ></DIV | |
| 239 ></BODY | |
| 240 ></HTML | |
| 241 > |