remove the error from program( C programming language)
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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remove the error from program( C
![#include<stdio, h>
#include<string.h>
#include<pthread.h>
#include<stdlib,h>
#include<unistd,h>
pthread_t tid[2];
int counter;
pthread_mutex_t lock;
void* doSomeThing (void *arg)
{
pthread_mutex_lock(lock);
unsigned long i = 0;
counter += 1;
printf("\n Job %d started\n", counter);
for(i=0; i<(0XFFFFFFFF);i++){
}
prinf("\n Job %d finished\n", counter);
pthread_mutex_unlock(lock);
return NULL;
}
int main(void)
{
int i = 0;
int err;
if (pthread_mutex_init(lock, NULL) != 0){
printf("\n mutex init failed\n");
return 1;
}
while(i < 2) {
err = pthread_create(&(tid[i]), NULL, &doSomeThing, NULL);
if (err != 0)
printf("\ncan't create thread : [%s]",
strerror(err));
i++;
}
pthread_join(tid[0], NULL);
pthread_join(tid[1], NULL);
pthread_mutex_destroy(lock);
return 0;
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa53f6587-9b42-42a0-b497-4d6e28f50491%2Fb5da2d04-83e0-4444-87f5-068b5ed7b077%2Fo0zltep_processed.png&w=3840&q=75)
Transcribed Image Text:#include<stdio, h>
#include<string.h>
#include<pthread.h>
#include<stdlib,h>
#include<unistd,h>
pthread_t tid[2];
int counter;
pthread_mutex_t lock;
void* doSomeThing (void *arg)
{
pthread_mutex_lock(lock);
unsigned long i = 0;
counter += 1;
printf("\n Job %d started\n", counter);
for(i=0; i<(0XFFFFFFFF);i++){
}
prinf("\n Job %d finished\n", counter);
pthread_mutex_unlock(lock);
return NULL;
}
int main(void)
{
int i = 0;
int err;
if (pthread_mutex_init(lock, NULL) != 0){
printf("\n mutex init failed\n");
return 1;
}
while(i < 2) {
err = pthread_create(&(tid[i]), NULL, &doSomeThing, NULL);
if (err != 0)
printf("\ncan't create thread : [%s]",
strerror(err));
i++;
}
pthread_join(tid[0], NULL);
pthread_join(tid[1], NULL);
pthread_mutex_destroy(lock);
return 0;
}
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