多线程程序设计

/* thread.c */

#include <stdio.h>
#include <pthread.h>

pthread_t thread[2];

int number = 0;
pthread_mutex_t mut;

void *work1()
{
	int i = 0;
	printf("I am worker1\n");
	
	for(i=0; i<10; i++)
	{
		pthread_mutex_lock(&mut);
		number++;
		pthread_mutex_unlock(&mut);
		
		printf("worker1 number is %d\n",number);
	
		sleep(1);
	}
	pthread_exit(NULL);
}

void *work2()
{
	int i = 0;
	printf("I am worker2\n");
	
	for(i=0; i<10; i++)
	{
		pthread_mutex_lock(&mut);
		number++;
		pthread_mutex_unlock(&mut);
		
		printf("worker2 number is %d\n",number);
	
		sleep(1);
	}
	pthread_exit(NULL);
}

int main()
{
	pthread_mutex_init(&mut,NULL);
	
	//创建工人1线程
	pthread_create(&thread[0],NULL,work1,NULL);
	
	//创建工人2线程
	pthread_create(&thread[1],NULL,work2,NULL);
	
	//等待工人1线程的结束
	pthread_join(thread[0],NULL);
	
	//等待工人2线程的结束
	pthread_join(thread[1],NULL);
	
	return 0;
}

[root@localhost share]# gcc -lpthread thread.c -o thread
[root@localhost share]# ./thread
I am worker2
worker2 number is 1
I am worker1
worker1 number is 2
worker2 number is 3
worker1 number is 4
worker1 number is 5
worker2 number is 6
worker2 number is 7
worker1 number is 8
worker1 number is 9
worker2 number is 10
worker1 number is 11
worker2 number is 12
worker2 number is 13
worker1 number is 14
worker2 number is 15
worker1 number is 16
worker1 number is 17
worker2 number is 18
worker2 number is 19
worker1 number is 20