Linux多线程编程
时间:2014-06-24 20:32 来源:linux.it.net.cn 作者:IT网
#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 1\n");
for (i = 0; i < MAX; i++)
{
printf("thread1 : number = %d\n",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 2\n");
for (i = 0; i < MAX; i++)
{
printf("thread2 : number = %d\n",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;
}
(责任编辑:IT)
#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 1\n"); for (i = 0; i < MAX; i++) { printf("thread1 : number = %d\n",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 2\n"); for (i = 0; i < MAX; i++) { printf("thread2 : number = %d\n",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; } (责任编辑:IT) |