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Linux多线程编程

来源:本站整理 作者:梦在深巷 时间:2014-06-16 19:17:34

#include

#include

#include

#include

#define MAX 10

pthread_t thread[2];

pthread_mutex_t mut;

int number=0, i;

void *thread1()

{

printf ("thread1 : I'm thread 1n");

for (i = 0; i < MAX; i++)

{

printf("thread1 : number = %dn",number);

pthread_mutex_lock(&mut);

number++;

pthread_mutex_unlock(&mut);

sleep(2);

}

printf("thread1 :主函数在等我完成任务吗?n");

pthread_exit(NULL);

}

void *thread2()

{

printf("thread2 : I'm thread 2n");

for (i = 0; i < MAX; i++)

{

printf("thread2 : number = %dn",number);

pthread_mutex_lock(&mut);

number++;

pthread_mutex_unlock(&mut);

sleep(3);

}

printf("thread2 :主函数在等我完成任务吗?n");

pthread_exit(NULL);

}

void thread_create(void)

{

int temp;

memset(&thread, 0, sizeof(thread)); //comment1

/*创建线程*/

if((temp = pthread_create(&thread[0], NULL, thread1, NULL)) != 0) //comment2

printf("线程1创建失败!n");

else

printf("线程1被创建n");

if((temp = pthread_create(&thread[1], NULL, thread2, NULL)) != 0) //comment3

printf("线程2创建失败");

else

printf("线程2被创建n");

}

void thread_wait(void)

{

/*等待线程结束*/

if(thread[0] !=0) { //comment4

pthread_join(thread[0],NULL);

printf("线程1已经结束n");

}

if(thread[1] !=0) { //comment5

pthread_join(thread[1],NULL);

printf("线程2已经结束n");

}

}

int main()

{

/*用默认属性初始化互斥锁*/

pthread_mutex_init(&mut,NULL);

printf("我是主函数哦,我正在创建线程,呵呵n");

thread_create();

printf("我是主函数哦,我正在等待线程完成任务阿,呵呵n");

thread_wait();

return 0;

}

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