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| >SDL_DestroySemaphore</H1 |
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| NAME="AEN7982" |
| ></A |
| ><H2 |
| >Name</H2 |
| >SDL_DestroySemaphore -- Destroys a semaphore that was created by <A |
| HREF="sdlcreatesemaphore.html" |
| >SDL_CreateSemaphore</A |
| >.</DIV |
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| >Synopsis</H2 |
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| ><PRE |
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| >#include "SDL.h" |
| #include "SDL_thread.h"</PRE |
| ><P |
| ><CODE |
| ><CODE |
| CLASS="FUNCDEF" |
| >void <B |
| CLASS="FSFUNC" |
| >SDL_DestroySemaphore</B |
| ></CODE |
| >(SDL_sem *sem);</CODE |
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| ><H2 |
| >Description</H2 |
| ><P |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_DestroySemaphore</TT |
| > destroys the semaphore pointed to |
| by <TT |
| CLASS="PARAMETER" |
| ><I |
| >sem</I |
| ></TT |
| > that was created by |
| <A |
| HREF="sdlcreatesemaphore.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_CreateSemaphore</TT |
| ></A |
| >. |
| It is not safe to destroy a semaphore if there are threads currently blocked |
| waiting on it.</P |
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| NAME="AEN8000" |
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| >Examples</H2 |
| ><P |
| ><PRE |
| CLASS="PROGRAMLISTING" |
| >if (my_sem != NULL) { |
| SDL_DestroySemaphore(my_sem); |
| my_sem = NULL; |
| }</PRE |
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| >See Also</H2 |
| ><P |
| ><A |
| HREF="sdlcreatesemaphore.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_CreateSemaphore</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 |
| >, |
| <A |
| HREF="sdlsemvalue.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_SemValue</TT |
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