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view docs/html/sdlsemvalue.html @ 3818:49eadd6e8962 SDL-ryan-multiple-audio-device

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Mangled ALSA dynamic loading...static loading will still work if you have the right libraries, but this is expected to break in general cases as we start dealing with different symbol versions, etc (but may work with, say, distro-specific packages, etc).
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 06 Oct 2006 19:45:11 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_SemValue</TITLE
><META
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TITLE="SDL Library Documentation"
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>SDL Library Documentation</TH
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><HR
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><H1
><A
NAME="SDLSEMVALUE"
></A
>SDL_SemValue</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN8218"
></A
><H2
>Name</H2
>SDL_SemValue&nbsp;--&nbsp;Return the current value of a semaphore.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN8221"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN8222"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"
#include "SDL/SDL_thread.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint32 <B
CLASS="FSFUNC"
>SDL_SemValue</B
></CODE
>(SDL_sem *sem);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN8228"
></A
><H2
>Description</H2
><P
><TT
CLASS="FUNCTION"
>SDL_SemValue()</TT
> returns the current semaphore value from
the semaphore pointed to by <TT
CLASS="PARAMETER"
><I
>sem</I
></TT
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN8233"
></A
><H2
>Return Value</H2
><P
>Returns current value of the semaphore.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN8236"
></A
><H2
>Examples</H2
><P
><PRE
CLASS="PROGRAMLISTING"
>  sem_value = SDL_SemValue(my_sem);</PRE
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN8240"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlcreatesemaphore.html"
><TT
CLASS="FUNCTION"
>SDL_CreateSemaphore</TT
></A
>,
<A
HREF="sdldestroysemaphore.html"
><TT
CLASS="FUNCTION"
>SDL_DestroySemaphore</TT
></A
>,
<A
HREF="sdlsemwait.html"
><TT
CLASS="FUNCTION"
>SDL_SemWait</TT
></A
>,
<A
HREF="sdlsemtrywait.html"
><TT
CLASS="FUNCTION"
>SDL_SemTryWait</TT
></A
>,
<A
HREF="sdlsemwaittimeout.html"
><TT
CLASS="FUNCTION"
>SDL_SemWaitTimeout</TT
></A
>,
<A
HREF="sdlsempost.html"
><TT
CLASS="FUNCTION"
>SDL_SemPost</TT
></A
></P
></DIV
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><A
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>Prev</A
></TD
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>Home</A
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>SDL_SemPost</TD
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>Up</A
></TD
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>