linux 线程创建与执行

参考 Linux程序设计

#include
#include
#include
#include
#include

void *thread_function(void *arg);
char message[]="Hello World";

int main()
{
int res;
pthread_t a_thread;
void *thread_result;

res=pthread_create(&a_thread,NULL,thread_function,(void *)message);
if(res!=0){
  perror("Thread creation failed");
  exit(EXIT_FAILURE);
  }
printf("Wait for thread to finish..\n");
res=pthread_join(a_thread,&thread_result);
if(res!=0){
   perror("Thread join failed");
   exit(EXIT_FAILURE);
   }
printf("Thread joined,it returned %s\n",message);
printf("Message is now %s\n",message);
exit(EXIT_SUCCESS);

}
void *thread_function(void *arg){
printf("thread_function is running.Argument was %s\n",(char *)arg);
sleep(3);
strcpy(message,"Bye!");
pthread_exit("Thank you for the CPU time");        
}