github.com/cloudwego/kitex@v0.9.0/pkg/remote/trans/nphttp2/stream_middleware.go (about)

     1  /*
     2   * Copyright 2023 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package nphttp2
    18  
    19  import (
    20  	ep "github.com/cloudwego/kitex/pkg/endpoint"
    21  	"github.com/cloudwego/kitex/pkg/streaming"
    22  )
    23  
    24  // streamWithMiddleware enables interception for stream's SendMsg and RecvMsg.
    25  type streamWithMiddleware struct {
    26  	streaming.Stream
    27  
    28  	recvEndpoint ep.RecvEndpoint
    29  	sendEndpoint ep.SendEndpoint
    30  }
    31  
    32  func newStreamWithMiddleware(st streaming.Stream, recv ep.RecvEndpoint, send ep.SendEndpoint) *streamWithMiddleware {
    33  	return &streamWithMiddleware{
    34  		Stream:       st,
    35  		recvEndpoint: recv,
    36  		sendEndpoint: send,
    37  	}
    38  }
    39  
    40  func (s *streamWithMiddleware) RecvMsg(m interface{}) error {
    41  	return s.recvEndpoint(s.Stream, m)
    42  }
    43  
    44  func (s *streamWithMiddleware) SendMsg(m interface{}) error {
    45  	return s.sendEndpoint(s.Stream, m)
    46  }