Question

我有一个在LINUX中创建进程线程的C ++程序。如何修改此代码以创建无限量的进程？我的计数目前设为5。这是我的代码：

#include <iostream>
#include <cstdlib>
#include <pthread.h>
#include <stdint.h>
#include <inttypes.h>

using namespace std;

#define THREAD_COUNT     5

void *PrintPhrase(void *threadid)
{
   long tid;
   tid = (long)threadid;
   cout << "THis Is A Great Day Thread ID, " << tid << endl;
   pthread_exit(NULL);
}

int main ()
{
   pthread_t threads[THREAD_COUNT];
   int rc;
   uintptr_t i;
   for( i=0; i < THREAD_COUNT; i++ ){
      cout << "main() : creating thread, " << i << endl;
      rc = pthread_create(&threads[i], NULL, 
                          PrintPhrase, (void *)i);

      if (rc){
         cout << "Error:unable to create thread," << rc << endl;
         exit(-1);
      }
   }

  pthread_exit(NULL);

}

Answer 1

对于无限，我建议进行以下更改：

将for循环替换为while (true)。

替换：

pthread_t threads[THREAD_COUNT];

使用：

std::vector<pthread_t> threads;

你的循环看起来像：

   while (true)
   {
      pthread temp;
      rc = pthread_create(&temp, NULL, 
                          PrintPhrase, (void *)i);
      if (rc){
         cout << "Error:unable to create thread," << rc << endl;
         return EXIT_FAILURE;
      }
      threads.push_back(temp);
   }

编写并执行创建无限进程的C或C ++程序。

1 个答案: