pthread_mutex

pthread_mutex.c

#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>

void funcao1(int *id);
void funcao2(int *id);


int x=10;
int i;


pthread_mutex_t lock;

int main()
{
	system("clear");	
	
	pthread_t thread1; 
	pthread_t thread2;
	
	int id_thread1; 		
	int id_thread2;
	
	id_thread1 = 1;
	id_thread2 = 2;
	
	pthread_create(&thread1,NULL,(void* )funcao1,&id_thread1);
	pthread_create(&thread2,NULL,(void* )funcao2,&id_thread2);	
	
	pthread_join(thread1,NULL);
	pthread_join(thread1,NULL);
}

void funcao1(int *id)
{  
	printf("PAI RODANDO...\n");	
}

void funcao2(int *id)
{
  pthread_mutex_lock(&lock);
    for(i=0;i<x;i++)
    {
      printf("filho processando...\n");	
    }  
  pthread_mutex_unlock(&lock);
}