笔记

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/*****************************************************

File name：

Author：Jerey_Jobs Version:0.1 Date:

Description：

Funcion List:

*****************************************************/

#include <stdio.h>

#include <stdlib.h>

#include <pthread.h>

int flag = 1;

void * thread_function(void * arg);

int main()

{

int ret;

pthread_t tid;

void * thread_result;

int count = 1;

ret = pthread_create(&tid,NULL,thread_function,NULL);

if(ret != 0)

{

perror("thread create failed!\n");

exit(EXIT_FAILURE);

}

while(count++ < 10)

{

if(flag == 1)

{

printf("1");

flag = 2;

}

else

{

sleep(1);

}

printf("\nwaiting for thread to finish...\n");

ret = pthread_join(tid,&thread_result);

if(ret != 0)

{

perror("thread join failed!\n");

exit(EXIT_FAILURE);

}

return 0;

}

void * thread_function(void *arg)

{

int count = 1;

while(count++ < 10)

{

if(flag == 2)

{

printf("2");

flag = 1;

}

sleep(1);

}

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