Question

我有一个unix_socket类作为属性double*，并在其构造函数中分配带new的内存：

class unix_socket::unix_socket(){
    //...
    array_recvd=new double[10];
    //...
}

因此我在析构函数中使用delete[]来释放内存：

unix_socket::~unix_socket(){
    //..
    delete[] array_recvd;
    //...
}

但是，当使用Valgrind检查程序中的内存泄漏时，数组使用的内存不会被释放：

==4683== HEAP SUMMARY:
==4683==     in use at exit: 80 bytes in 1 blocks
==4683==   total heap usage: 2 allocs, 1 frees, 648 bytes allocated
==4683== 
==4683== Searching for pointers to 1 not-freed blocks
==4683== Checked 188,184 bytes
==4683== 
==4683== 80 bytes in 1 blocks are still reachable in loss record 1 of 1
==4683==    at 0x4C2BBA4: operator new[](unsigned long) (vg_replace_malloc.c:363)
==4683==    by 0x406503: unix_socket::unix_socket() (in /home/joao/CloudPT/Bolsa/Webots/controllers/darwin-pi2/client)
==4683==    by 0x402355: main (in /home/joao/CloudPT/Bolsa/Webots/controllers/darwin-pi2/client)
==4683== 
==4683== LEAK SUMMARY:
==4683==    definitely lost: 0 bytes in 0 blocks
==4683==    indirectly lost: 0 bytes in 0 blocks
==4683==      possibly lost: 0 bytes in 0 blocks
==4683==    still reachable: 80 bytes in 1 blocks
==4683==         suppressed: 0 bytes in 0 blocks

我确定这个泄漏是由 ~~vector_recvd~~ array_recvd引起的，因为只有在我将它作为属性时才会出现。我究竟做错了什么？我如何释放双打数组分配的内存？

编辑：这是我用来复制此问题的main.cpp：

int main () {

  unix_socket client;    
  client.initSocket(DEFAULT_SOCKET_PATH,CLIENT_MODE);

  for (int i = 0; i < 100; ++i){
    client.sendVectorXd(VectorXd::Ones(30));
  }

  client.closeSocket();    
  return 0;
}

可能相关：此问题仅在拒绝套接字连接时出现（没有服务器等待客户端）。

编辑2 ：所以我发现了问题，确实在initSocket()。如果以某种方式连接到套接字服务器失败（就像这样），我有exit(1)：

if (connect(client_sock, (struct sockaddr *)&remote, len) == -1) {
    perror("connect");
    exit(1);
}

我认为调用exit()会调用析构函数，我现在看到的情况并非如此。

根据Valgrind，delete []不释放内存

0 个答案: