chenBright commented on code in PR #2751:
URL: https://github.com/apache/brpc/pull/2751#discussion_r1741382570
##########
docs/en/server.md:
##########
@@ -1008,6 +1008,49 @@ public:
...
```
+## RPC Protobuf message factory
+
+`DefaultRpcPBMessageFactory' is used at server-side by default. It is a simple
factory class that uses `new' to create request/response messages and `delete'
to destroy request/response messages. Currently, the baidu_std protocol and
HTTP protocol support this feature.
+
+Users can implement `RpcPBMessages' (encapsulation of request/response
message) and `RpcPBMessageFactory' (factory class) to customize the creation
and destruction mechanism of protobuf message, and then set to
`ServerOptions.rpc_pb_message_factory`. Note: After the server is started, the
server owns the `RpcPBMessageFactory`.
+
+The interface is as follows:
+
+```c++
+// Inherit this class to customize rpc protobuf messages,
+// include request and response.
+class RpcPBMessages {
+public:
+ virtual ~RpcPBMessages() = default;
+ // Get protobuf request message.
+ virtual google::protobuf::Message* Request() = 0;
+ // Get protobuf response message.
+ virtual google::protobuf::Message* Response() = 0;
+};
+
+// Factory to manage `RpcPBMessages'.
+class RpcPBMessageFactory {
+public:
+ virtual ~RpcPBMessageFactory() = default;
+ // Get `RpcPBMessages' according to `service' and `method'.
+ // Common practice to create protobuf message:
+ // service.GetRequestPrototype(&method).New() -> request;
+ // service.GetRequestPrototype(&method).New() -> response.
Review Comment:
done
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