github.com/cloudwego/kitex@v0.9.0/server/middlewares.go (about)

     1  /*
     2   * Copyright 2024 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 server
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/cloudwego/kitex/pkg/endpoint"
    23  	"github.com/cloudwego/kitex/pkg/rpcinfo"
    24  )
    25  
    26  func serverTimeoutMW(initCtx context.Context) endpoint.Middleware {
    27  	return func(next endpoint.Endpoint) endpoint.Endpoint {
    28  		return func(ctx context.Context, request, response interface{}) (err error) {
    29  			// Regardless of the underlying protocol, only by checking the RPCTimeout
    30  			// For TTHeader, it will be set by transmeta.ServerTTHeaderHandler (not added by default though)
    31  			// For GRPC/HTTP2, the timeout deadline is already set in the context, so no need to check it
    32  			ri := rpcinfo.GetRPCInfo(ctx)
    33  			timeout := ri.Config().RPCTimeout()
    34  			if timeout <= 0 {
    35  				return next(ctx, request, response)
    36  			}
    37  
    38  			ctx, cancel := context.WithTimeout(ctx, timeout)
    39  			defer func() {
    40  				if err != nil {
    41  					cancel()
    42  				}
    43  			}()
    44  			return next(ctx, request, response)
    45  		}
    46  	}
    47  }