.TH "SDL_SemPost" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" +
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.SH "NAME"+
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SDL_SemPost\- Unlock a semaphore\&.+
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.SH "SYNOPSIS"+
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.PP+
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\fB#include "SDL\&.h"+
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#include "SDL_thread\&.h"+
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.sp+
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\fBint \fBSDL_SemPost\fP\fR(\fBSDL_sem *sem\fR);+
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.SH "DESCRIPTION"+
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.PP+
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\fBSDL_SemPost\fP unlocks the semaphore pointed to by \fBsem\fR and atomically increments the semaphores value\&. Threads that were blocking on the semaphore may be scheduled after this call succeeds\&.+
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.PP+
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\fBSDL_SemPost\fP should be called after a semaphore is locked by a successful call to \fISDL_SemWait\fR, \fISDL_SemTryWait\fR or \fISDL_SemWaitTimeout\fR\&.+
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.SH "RETURN VALUE"+
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.PP+
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Returns \fB0\fR if successful or \fB-1\fR if there was an error (leaving the semaphore unchanged)\&.+
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.SH "EXAMPLES"+
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.PP+
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.PP+
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.nf+
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\f(CWSDL_SemPost(my_sem);\fR+
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.fi+
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.PP+
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.SH "SEE ALSO"+
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.PP+
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\fI\fBSDL_CreateSemaphore\fP\fR, \fI\fBSDL_DestroySemaphore\fP\fR, \fI\fBSDL_SemWait\fP\fR, \fI\fBSDL_SemTryWait\fP\fR, \fI\fBSDL_SemWaitTimeout\fP\fR, \fI\fBSDL_SemValue\fP\fR+
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...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00+
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