Linux中多线程详解及简单实例

一个简单的创建多线程的程序：

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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("Waiting for thread to finish.../n");

  res = pthread_join(a_thread, &thread_result);
  if (res != 0)
  {
    perror("Thread join failed!/n");
    exit(EXIT_FAILURE);
  }

  printf("Thread joined, it returned %s/n", (char *)thread_result);
  printf("Message is now %s/n", message);

  exit(EXIT_FAILURE);
}

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 your CPU time!");
}

输出结果

$./thread1[输出]：
thread_function is running. Argument was Hello World
Waiting for thread to finish...
Thread joined, it returned Thank you for your CPU time!
Message is now Bye!

以上就是Linux 多线程的实例详解，如有疑问请留言或者到本站社区交流讨论，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！