Mercurial > sdl-ios-xcode
annotate docs/html/sdlmutexp.html @ 571:8e3ce997621c
Date: Thu, 16 Jan 2003 13:48:31 +0200
From: "Mike Gorchak"
Subject: All QNX patches
whole patches concerning QNX. Almost all code has been rewritten by Julian
and me. Added initial support for hw overlays in QNX and many many others
fixes.
P.S. This patches has been reviewed by Dave Rempel from QSSL and included in
SDL 1.2.5 distribution, which coming on 3rd party CD for newest 6.2.1
version of QNX, which will be available soon.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 20 Jan 2003 01:38:37 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_mutexP</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_DestroyMutex" | |
| 17 HREF="sdldestroymutex.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_mutexV" | |
| 20 HREF="sdlmutexv.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="sdldestroymutex.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="sdlmutexv.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="SDLMUTEXP" | |
| 71 >SDL_mutexP</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN7484" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_mutexP -- Lock a mutex</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN7487" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN7488" |
| 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_mutexP</B | |
| 106 ></CODE | |
| 107 >(SDL_mutex *mutex);</CODE | |
| 108 ></P | |
| 109 ><P | |
| 110 ></P | |
| 111 ></DIV | |
| 112 ></DIV | |
| 113 ><DIV | |
| 114 CLASS="REFSECT1" | |
| 115 ><A | |
|
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116 NAME="AEN7494" |
| 0 | 117 ></A |
| 118 ><H2 | |
| 119 >Description</H2 | |
| 120 ><P | |
| 121 >Locks the <TT | |
| 122 CLASS="PARAMETER" | |
| 123 ><I | |
| 124 >mutex</I | |
| 125 ></TT | |
| 126 >, which was previously created with <A | |
| 127 HREF="sdlcreatemutex.html" | |
| 128 ><TT | |
| 129 CLASS="FUNCTION" | |
| 130 >SDL_CreateMutex</TT | |
| 131 ></A | |
| 132 >. If the mutex is already locked then <TT | |
| 133 CLASS="FUNCTION" | |
| 134 >SDL_mutexP</TT | |
| 135 > will not return until it is <A | |
| 136 HREF="sdlmutexv.html" | |
| 137 >unlocked</A | |
| 138 >. Returns <SPAN | |
| 139 CLASS="RETURNVALUE" | |
| 140 >0</SPAN | |
| 141 > on success, or <SPAN | |
| 142 CLASS="RETURNVALUE" | |
| 143 >-1</SPAN | |
| 144 > on an error.</P | |
| 145 ><P | |
| 146 >SDL also defines a macro <TT | |
| 147 CLASS="LITERAL" | |
| 148 >#define SDL_LockMutex(m) SDL_mutexP(m)</TT | |
| 149 >.</P | |
| 150 ></DIV | |
| 151 ><DIV | |
| 152 CLASS="REFSECT1" | |
| 153 ><A | |
|
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154 NAME="AEN7506" |
| 0 | 155 ></A |
| 156 ><H2 | |
| 157 >See Also</H2 | |
| 158 ><P | |
| 159 ><A | |
| 160 HREF="sdlcreatemutex.html" | |
| 161 ><TT | |
| 162 CLASS="FUNCTION" | |
| 163 >SDL_CreateMutex</TT | |
| 164 ></A | |
| 165 >, | |
| 166 <A | |
| 167 HREF="sdlmutexv.html" | |
| 168 ><TT | |
| 169 CLASS="FUNCTION" | |
| 170 >SDL_mutexV</TT | |
| 171 ></A | |
| 172 ></P | |
| 173 ></DIV | |
| 174 ><DIV | |
| 175 CLASS="NAVFOOTER" | |
| 176 ><HR | |
| 177 ALIGN="LEFT" | |
| 178 WIDTH="100%"><TABLE | |
| 179 WIDTH="100%" | |
| 180 BORDER="0" | |
| 181 CELLPADDING="0" | |
| 182 CELLSPACING="0" | |
| 183 ><TR | |
| 184 ><TD | |
| 185 WIDTH="33%" | |
| 186 ALIGN="left" | |
| 187 VALIGN="top" | |
| 188 ><A | |
| 189 HREF="sdldestroymutex.html" | |
| 190 >Prev</A | |
| 191 ></TD | |
| 192 ><TD | |
| 193 WIDTH="34%" | |
| 194 ALIGN="center" | |
| 195 VALIGN="top" | |
| 196 ><A | |
| 197 HREF="index.html" | |
| 198 >Home</A | |
| 199 ></TD | |
| 200 ><TD | |
| 201 WIDTH="33%" | |
| 202 ALIGN="right" | |
| 203 VALIGN="top" | |
| 204 ><A | |
| 205 HREF="sdlmutexv.html" | |
| 206 >Next</A | |
| 207 ></TD | |
| 208 ></TR | |
| 209 ><TR | |
| 210 ><TD | |
| 211 WIDTH="33%" | |
| 212 ALIGN="left" | |
| 213 VALIGN="top" | |
| 214 >SDL_DestroyMutex</TD | |
| 215 ><TD | |
| 216 WIDTH="34%" | |
| 217 ALIGN="center" | |
| 218 VALIGN="top" | |
| 219 ><A | |
| 220 HREF="thread.html" | |
| 221 >Up</A | |
| 222 ></TD | |
| 223 ><TD | |
| 224 WIDTH="33%" | |
| 225 ALIGN="right" | |
| 226 VALIGN="top" | |
| 227 >SDL_mutexV</TD | |
| 228 ></TR | |
| 229 ></TABLE | |
| 230 ></DIV | |
| 231 ></BODY | |
| 232 ></HTML | |
| 233 > |