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Linux下一个简单的多线程互斥锁的例子

  本篇文章是对Linux下一个简单的多线程互斥锁的例子进行了分析介绍,需要的朋友可以参考下 复制代码 代码如下:

  #include <stdio.h>

  #include <pthread.h>

  pthread_mutex_t Device_mutex ;

  int count=0;

  void thread_func1()

  {

  while(1)

  {

  pthread_mutex_lock(&Device_mutex);

  printf("thread1: %dn",count);

  pthread_mutex_unlock(&Device_mutex);

  count++;

  sleep(1);

  }

  }

  void thread_func2()

  {

  while(1)

  {

  pthread_mutex_lock(&Device_mutex);

  printf("thread2: %dn",count);

  pthread_mutex_unlock(&Device_mutex);

  count++;

  sleep(1);

  }

  }

  int main()

  {

  pthread_t thread1, thread2;

  pthread_mutex_init(&Device_mutex,NULL);

  if(pthread_create(&thread1,NULL,(void*)thread_func1,NULL) == -1)

  {

  printf("create IP81 Thread error !n");

  exit(1);

  }

  sleep(1);

  if(pthread_create(&thread2,NULL,(void *)thread_func2,NULL) == -1)

  {

  printf("create IP81_2 Thread error!n");

  exit(1);

  }

  sleep(1);

  pthread_join(thread1,NULL);

  pthread_join(thread2,NULL);

  pthread_mutex_destroy(&Device_mutex);

  return 0;

  }

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