snp-lab-code/P10_Sync/Sync/mutex/coffeeTeller.c

47 lines
1.3 KiB
C

/*******************************************************************************
* File: coffeTeller.c
* Purpose: coffe teller with pthreads
* Course: bsy
* Author: M. Thaler, 2011
* Revision: 5/2012
* Version: v.fs20
*******************************************************************************/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <pthread.h>
#include "commonDefs.h"
//******************************************************************************
void *coffeeTeller(void* data) {
int i;
cData *cD = (cData *) data;
// now start selling coffee
printf("\nCoffee teller machine starting\n\n");
i = 0;
while (i < ITERATIONS) {
if (cD->coinCount != cD->selCount1 + cD->selCount2) {
printf("error c = %5d s1 =%6d s2 =%6d diff: %4d\ti = %d\n",
cD->coinCount, cD->selCount1, cD->selCount2,
cD->coinCount - cD->selCount1 - cD->selCount2,
i);
cD->coinCount = 0;
cD->selCount1 = cD->selCount2 = 0;
}
if (i%1000000 == 0) printf("working\n");
i++;
}
pthread_exit(0);
}
//******************************************************************************