mingw/man/man3/SDL_SemPost.3

   1 .TH "SDL_SemPost" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference"
   2 .SH "NAME"
   3 SDL_SemPost\- Unlock a semaphore\&.
   4 .SH "SYNOPSIS"
   5 .PP
   6 \fB#include "SDL\&.h"
   7 #include "SDL_thread\&.h"
   8 .sp
   9 \fBint \fBSDL_SemPost\fP\fR(\fBSDL_sem *sem\fR);
  10 .SH "DESCRIPTION"
  11 .PP
  12 \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\&.
  13 .PP
  14 \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\&.
  15 .SH "RETURN VALUE"
  16 .PP
  17 Returns \fB0\fR if successful or \fB-1\fR if there was an error (leaving the semaphore unchanged)\&.
  18 .SH "EXAMPLES"
  19 .PP
  20 .PP
  21 .nf
  22 \f(CWSDL_SemPost(my_sem);\fR
  23 .fi
  24 .PP
  25 .SH "SEE ALSO"
  26 .PP
  27 \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
  28 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00