?? semtask2.c
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/* semTask2.c - shared semaphore example *//* Copyright 1984-1997 Wind River Systems, Inc. *//*modification history--------------------01b,06nov97,mm added copyright.01b,17sept97,ram need to add INCLUDE_SM_OBJ in configAll.h tested OK01a,27jan94,jl cleanup of code in programmers manual */#include "vxWorks.h"#include "semLib.h"#include "semSmLib.h"#include "smNameLib.h"#include "stdio.h"#include "semExample.h"/************************************************************************** semTask2 - shared semaphore user **/STATUS semTask2 (void) { SEM_ID semSmId; int objType; /* find object in name database */ if (smNameFind (SEM_NAME, (void **) &semSmId, &objType, WAIT_FOREVER) == ERROR) return (ERROR); /* take the shared semaphore */ printf ("semTask2 is now going to take the shared semaphore\n"); semTake (semSmId, WAIT_FOREVER); /* normally do something useful */ printf ("Task2 got the shared semaphore!!\n"); /* release shared semaphore */ semGive (semSmId); printf ("Task2 has released the shared semaphore\n"); return (OK); }
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