四、使用NPTL进行线程编程

#include
#include
#include
#include

void thread_fun(void * arg);
char message[] = "I am created thread";

int main()
{
  int rnt;
  pthread_t new_thread;
  void *thread_result;
  rnt=pthread_create(&new_thread,NULL, thread_fun, (void*) message);

  if (rnt != 0)
  {
    perrer ("thread creation failed");
    exit(EXIT_FAILURE);
  }
 
  printf("Waiting for other thread to finish…");
  rnt = pthread_join(new_thread, &thread_result); 

  if (rnt != 0)
  {
    perrer ("thread join failed");
    exit(EXIT_FAILURE);
  }

  printf("Thread join, it returned %s ", (char*) thread_result);
  printf("message now %s", message);
  exit(EXIT_SUCCESS);
}

void *thread_fun (void * arg)
{
  printf("the new thread is running. Argument was %s",(char*)arg);
  sleep(3);
  strcpy(message, "Bye");
  pthread_exit("Thank you for the test");
}

　　编译

gcc -D_REENTRANT test_thread.c -o test_thread -lpthread
./test_thread

　　成功了。

　　(参考链接: http://linux.ccidnet.com/art/741/20061123/958349_1.html)