如何使用C / C ++系统调用获取Linux中进程的堆内存的当前大小？

Question

I am working on a software library, which can constantly keep track of the size of the heap memory of programs written in C/C++.

What I would like to do is as follows.

void check_memory(){

  heap_size = get_process_heap_size(.....);

  if(heap_size>=upper_bound){

    //do something to reduce the heap size

    heap_size = get_process_heap_size(.....); 
  }
}

Is there any system call in C/C++ that is equivalent to get_process_heap_size() in the code above?

Answer 1

我不知道是否有任何直接的系统调用可以为您提供内存详细信息，但是如果您使用的是Linux，则可以读取和解析/ proc /（进程的pid）/状态文件来获取所需的内存使用计数