/* tsk2.c - Task #2 */#include <psos.h>#include <prepc.h>#include <stdio.h>#include "misc.h"#include "appl.h"/* wait_for_semaphore() - Wait until a semaphore exists */ULONGwait_for_semaphore(char name[4], int maxwait){	ULONG	rc, smid;	int	try = 0;	do {		/* See if the semaphore exists */		if (0 == (rc = sm_ident(name, 0, &smid)))			return(smid);	/* YES, SUCCESS! */		/* No semaphore yet.  Wait a while and try again */		tm_wkafter(10);	} while (try++ < maxwait);	/* Try this many times */	fail(rc, "wait_for_semaphore: timed out waiting for %s", name);	/* The "successful" return is above, in case you missed it. */}void tsk2(ULONG me, ULONG him, ULONG l3, ULONG l4){	ULONG	smid, rc;	int	tally = 0;	bprintf("\t\t\t%s Task begin\n", (char *) me);	smid = wait_for_semaphore(SEM_NAM, 100);	for (;;) {		rc = sm_p(smid, SM_WAIT, 0);		if ((rc == ERR_OBJDEL) || (rc == ERR_SKILLD))			break;	/* Semaphore has been deleted.				   Break loop and delete self. */		else if (rc != 0)			fail(rc, "%s sm_p(%08x) failed", me, smid);		tally++;		bprintf("\t\t\t%s awakened, tally is now %d\n",		       (char *) me, tally);	}	bprintf("\t\t\t%s Task end\n", (char *) me);	exit(0);}