#output is segmentation fault

14 messages · Page 1 of 1 (latest)

woeful echoBOT
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serene acorn
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!f

woeful echoBOT
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#include <pthread.h>    //Create POSIX threads.
#include <semaphore.h>  //To create semaphores
#include <stdio.h>      //Input Output
#include <stdlib.h>
#include <time.h>    //Wait for a random time.
#include <unistd.h>  //Thread calls sleep for specified number of seconds.

#define CUSTOMER_NUMBER 25
#define CUSTOMER_ARRIVAL_TIME_MIN 1
#define CUSTOMER_ARRIVAL_TİME_MAX 3
#define REGISTER_NUMBER 5
#define COFFEE_TIME_MIN 2
#define COFFEE_TIME_MAX 5

int arrival_time = 0;

int customer_num[CUSTOMER_NUMBER];  // The array that holding customers id

void* Customer_Activity(void* customer_id);

int main(int argc, char* argv[]) {
  int id;
  int i;

  pthread_t customers[CUSTOMER_NUMBER];

  sem_init(&registers_sem, 0, REGISTER_NUMBER);

  for (i = 0; CUSTOMER_NUMBER; i++) {
    customer_num[i] = i;
  }

  // Create the customer threads

  for (id = 0; id < CUSTOMER_NUMBER; id++) {
    pthread_create(&customers[id], NULL, Customer_Activity,
                   (void*)&customer_num[i]);
  }

  for (i = 0; i < CUSTOMER_NUMBER; i++) {
    pthread_join(customers[i], NULL);
  }
  return 0;
}

void* Customer_Activity(void* customer_id) {
  int c_id = *(int*)customer_id;
  srand(time(NULL));
  arrival_time = CUSTOMER_ARRIVAL_TIME_MIN + rand() % CUSTOMER_ARRIVAL_TİME_MAX;
  sleep(arrival_time);
  printf("CUSTOMER %d IS CREATED %d AFTER SECONDS.", c_id, arrival_time);
yildiz
Formatted by ZeroPointer
serene acorn
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for(i = 0; CHSTOMER_NUMBER; i++) is an infinite loop

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I'm assuming you meant i < CUSTOMER_NUMBER

wicked glacier
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where

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i can not find

serene acorn
wicked glacier
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thanks

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The segmentation fault has been fixed, but where should sleep be, so each customer should be generated at random times, how should I do this?

woeful echoBOT
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@wicked glacier Has your question been resolved? If so, run !solved :)

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@wicked glacier

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wicked glacier
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!solved