pthread_join 은 자원 이 제때에 방출 될 수 있 는 지 직접 결정 합 니 다.

/*http://hankjin.blog.163.com/blog/static/33731937201072675024100/

pthread       

# cc thread.c -lpthread

# ./a.out

1 threads created

101 threads created

201 threads created

301 threads created

ERROR, rc is 11, so far 382 threads created

Fail:: Resource temporarily unavailable

        ，          ， run   ，  pthread_exit     ，             ，        ，             ，   pthread_exit       ，   pthread_create   pthread_join      。    pthread_join，      pthread_exit，           。

    pthread_exit         ，        ，pthread_join              。

*/

#include<pthread.h>

#include<stdio.h>

void *run(void*p) {

    pthread_exit(0); //    ，     

}



int main () {

    pthread_t thread;

    int rc;

    long count = 0;

    while(1) {

        if((rc=pthread_create(&thread, NULL, run,NULL))!=0) {

            printf("ERROR, rc is %d, %ld threads created
", rc, count);

            perror("Fail:");

            return -1;

        }

        //pthread_join(thread,0);//     ，  id    。

        if(count++%100==0)

            printf("%ld threads created
", count);

    }

    return 0;//          

}