Sleep() 终止 WindRiver 中的线程

Sleep() terminates thread in WindRiver

我必须用 WindRiver 用 C 编写一个小程序,它创建三个线程:

要杀死一个线程,我想等待以确保它被创建,所以我发现我可以使用 sleep() 让另一个线程接管并让它自己创建。但他们都随着睡眠而死。

我想出了这个代码:

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

#define NUM_THREAD 3

int theRandomNumber = 0;

void *RandomNumber (void *threadid){
    int id = (int) threadid;
    //srand();
    theRandomNumber = rand() % 50; 
    printf("Thread %d: Random: %d \n", id, theRandomNumber);
    pthread_exit(NULL);
    return 0;
}

void *CheckNumber (void *threadid){
  int id = (int) threadid;
  printf("Thread #%d is active and going to sleep now\n", id);
  sleep(1000);
  //here he dies without annoucing anything or something
  printf("Thread #%d is active again and back from sleep\n", id);
  if (id == 1){
      if (theRandomNumber >= 25){
          pthread_cancel(2);
          printf("THREAD %d: Thread #2 is closed \n", id);
      }
  }
  else{
      if (theRandomNumber < 25){
          pthread_cancel(1);
          printf("THREAD %d: Thread #1 is closed \n", id);
      }
  }
  return 0;
}


int main (int argc, char *argv[]){
  pthread_t threads[NUM_THREAD];
  int t = 0;

  printf("in main: create thread #%d \n", t);
  pthread_create (&threads[t], NULL, RandomNumber, (void *) t++);

  printf("in main: create thread #%d \n", t);
  pthread_create (&threads[t], NULL, CheckNumber, (void *) t++);

  printf("in main: create thread #%d \n", t);
  pthread_create (&threads[t], NULL, CheckNumber, (void *) t++);
}

Randomnumber 的部分工作正常,我把它留在这里,但我可以根据要求 post 它。

线程到达 sleep() 后,将被终止。

控制台日志:

in main: create thread #0
in main: create thread #1
in main: create thread #2
Thread #0: Random: 8
Thread #1 is active and going to sleep now
Thread #2 is active and going to sleep now

睡眠后没有任何反应。有什么想法吗?

通过调用 pthread_exit() 离开 main() 以仅退出 "main" 线程,否则结束 main() 将结束进程并由此结束所有剩余的线程。

或者让 main() 通过对 pthread_create().

的调用返回的每个 PThread-id 调用 pthread_join() 来加入所有线程