Unix 环境多线程与互斥量的编程实例

#include <stdio.h>
#include <pthread.h>
pthread_t thread[2];
int number = 0;
pthread_mutex_t mut;
void *worker1()
{
    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 *worker2()
{
    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()
{
    /* 初始化互斥量 */
    pthread_mutex_init(&mut, NULL);
    /* 创建工人1线程 */
    pthread_create(&thread[0], NULL, worker1,NULL);
    /* 创建工人2线程 */
    pthread_create(&thread[1], NULL, worker2,NULL);
    /* 等待工人1线程的结束 */
    pthread_join(thread[0], NULL);
    /* 等待工人1线程的结束 */
    pthread_join(thread[1], NULL);
    return 0;
}