/**
* Create and initialize a semaphore, returning its ID.
* @param count resources available.
* @return new semaphore ID on success, SYSERR on failure
*/
semaphore semcreate(int count)
{
register semaphore sem;
irqmask im;
im = disable(); /* disable interrupts */
sem = semalloc(); /* request new semaphore */
if (sem != SYSERR && count >= 0) /* safety check */
{
semtab[sem].count = count; /* initialize count */
restore(im); /* restore interrupts */
return sem; /* return semaphore id */
}
restore(im);
return SYSERR;
}
int mutalloc(key_t key){
return semalloc(key, 1);
}
