[GitHub] [incubator-brpc] ehds opened a new issue #847: 关于异步请求response分配问题导致的纯虚函数调用错误。

[GitBox <gi...@apache.org>]

ehds opened a new issue #847: 关于异步请求response分配问题导致的纯虚函数调用错误。
URL: https://github.com/apache/incubator-brpc/issues/847
 
 
   **Describe the bug (描述bug)**
   在官方示例asynchronous_echo_c++中，经response分配在栈上，异步请求在回调的Closure中不传入response即：
   ```
   void HandleEchoResponse(brpc::Controller* cntl) {...}
   ```
   开启-O2选项，正常执行（猜测：response虽然在请求后被析构，但是done中没有使用所以正常执行）
   但是关闭-O2编译选项后出现
   ```
   pure virtual method called
   terminate called without an active exception
   ```
   猜测：没有优化会引发未定义行为？
   **To Reproduce (复现方法)**
   在官方示例asynchronous_echo_c++中，将response在栈上分配，并且回调函数只传入Controller，关闭-O2选项。
   
   **Expected behavior (期望行为)**
   
   
   **Versions (各种版本)**
   OS: ubuntu19.04
   Compiler: GNU 8.3.0 
   brpc: 0.9.6
   protobuf: 3.6.1
   
   **Additional context/screenshots (更多上下文/截图)**
   
   

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