linux线程过多 问题,关于 linux 多线程的问题

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程序：

#include

#include

#include

#include

#define NUM_THREADS 8

void *PrintHello(void *args)

{

int thread_arg;

sleep(1);

thread_arg = (int)(*((int*)args));

printf("Hello from thread %d\n", thread_arg);

return NULL;

}

int main(void)

{

int rc,t;

pthread_t thread[NUM_THREADS];

for( t = 0; t < NUM_THREADS; t++)

{

printf("Creating thread %d\n", t);

rc = pthread_create(&thread[t], NULL, PrintHello, &t);

if (rc)

{

printf("ERROR; return code is %d\n", rc);

return EXIT_FAILURE;

}

}

sleep(5);

for( t = 0; t < NUM_THREADS; t++)

pthread_join(thread[t], NULL);

return EXIT_SUCCESS;

}

函数输出为：

Creating thread 0

Creating thread 1

Creating thread 2

Creating thread 3

Creating thread 4

Creating thread 5

Creating thread 6

Creating thread 7

Hello from thread 8

Hello from thread 8

Hello from thread 8

Hello from thread 8

Hello from thread 8

Hello from thread 8

Hello from thread 8

Hello from thread 8

其中打印信息 Hello from thread 8 ，为什么打印的不是 Hello from thread t (t = 0 ~ 7)?