51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*******************************************************************************
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* File: customer.c
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* Purpose: simple sequence with semaphores
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* Course: bsy
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* Author: M. Thaler, 2011
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* Revision: 5/2012, 7/2013
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* Version: v.fs20
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*******************************************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <semaphore.h>
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#include "commonDefs.h"
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//******************************************************************************
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int main(int argc, char *argv[]) {
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int i, myID;
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sem_t *myTurn, *coin, *coffee, *ready;
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if (argc > 1)
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myID = atoi(argv[1]);
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else
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myID = 0;
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// set up a semaphore
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myTurn = sem_open(MYTURN_SEMAPHOR, 0);
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coin = sem_open(COIN_SEMAPHOR, 0);
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coffee = sem_open(COFFEE_SEMAPHOR, 0);
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ready = sem_open(READY_SEMAPHOR, 0);
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// start customer
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printf("Customer starting (%d)\n", myID);
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// now check the sum
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for (i = 0; i < ITERS; i++) {
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printf("\t\t\t\tcustomer(%d) put coin %d\n", myID, i);
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printf("\t\t\t\tcustomer(%d) waiting for coffee %d\n", myID, i);
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printf("\t\t\t\tcustomer(%d) got coffee %d\n", myID, i);
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drinkingCoffee(myID);
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}
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}
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//******************************************************************************
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