luliyucoordinate opened a new issue, #1907:
URL: https://github.com/apache/incubator-brpc/issues/1907
我有一段内存想要自己管理或者上层系统管理，例如
```c++
static void NoOpDeleter(void *) {}
class EchoServiceImpl : public EchoService {
public:
EchoServiceImpl() {};
virtual ~EchoServiceImpl() {};
virtual void Echo(google::protobuf::RpcController* cntl_base,
const EchoRequest* request,
EchoResponse* response,
google::protobuf::Closure* done) {
std::vector<int> a;
{
brpc::ClosureGuard done_guard(done);
brpc::Controller* cntl =
static_cast<brpc::Controller*>(cntl_base);
a.resize(dim);
//... a do some calc
butil::IOBuf &buf = cntl.request_attachment();
buf.append_user_data(a.data(), a.size() * sizeof(int), NoOpDeleter);
}
}
}
```
我的理解是done->Run()过程中，done->Run()是阻塞的，数据`a`会发送结束再出括号再析构a，但是我实际操作发现结果是不正确的。
所以我想问一下如果采用NoOpDeleter这样方式手动管理内存的生命周期，这块内存的生命周期需要存活多久才能保证发送的数据安全。
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