mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
104 lines
5.3 KiB
Go
104 lines
5.3 KiB
Go
/*
|
|
*
|
|
* Copyright 2016 gRPC authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
package grpc
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
// UnaryInvoker is called by UnaryClientInterceptor to complete RPCs.
|
|
type UnaryInvoker func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error
|
|
|
|
// UnaryClientInterceptor intercepts the execution of a unary RPC on the client.
|
|
// Unary interceptors can be specified as a DialOption, using
|
|
// WithUnaryInterceptor() or WithChainUnaryInterceptor(), when creating a
|
|
// ClientConn. When a unary interceptor(s) is set on a ClientConn, gRPC
|
|
// delegates all unary RPC invocations to the interceptor, and it is the
|
|
// responsibility of the interceptor to call invoker to complete the processing
|
|
// of the RPC.
|
|
//
|
|
// method is the RPC name. req and reply are the corresponding request and
|
|
// response messages. cc is the ClientConn on which the RPC was invoked. invoker
|
|
// is the handler to complete the RPC and it is the responsibility of the
|
|
// interceptor to call it. opts contain all applicable call options, including
|
|
// defaults from the ClientConn as well as per-call options.
|
|
//
|
|
// The returned error must be compatible with the status package.
|
|
type UnaryClientInterceptor func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error
|
|
|
|
// Streamer is called by StreamClientInterceptor to create a ClientStream.
|
|
type Streamer func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error)
|
|
|
|
// StreamClientInterceptor intercepts the creation of a ClientStream. Stream
|
|
// interceptors can be specified as a DialOption, using WithStreamInterceptor()
|
|
// or WithChainStreamInterceptor(), when creating a ClientConn. When a stream
|
|
// interceptor(s) is set on the ClientConn, gRPC delegates all stream creations
|
|
// to the interceptor, and it is the responsibility of the interceptor to call
|
|
// streamer.
|
|
//
|
|
// desc contains a description of the stream. cc is the ClientConn on which the
|
|
// RPC was invoked. streamer is the handler to create a ClientStream and it is
|
|
// the responsibility of the interceptor to call it. opts contain all applicable
|
|
// call options, including defaults from the ClientConn as well as per-call
|
|
// options.
|
|
//
|
|
// StreamClientInterceptor may return a custom ClientStream to intercept all I/O
|
|
// operations. The returned error must be compatible with the status package.
|
|
type StreamClientInterceptor func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream, error)
|
|
|
|
// UnaryServerInfo consists of various information about a unary RPC on
|
|
// server side. All per-rpc information may be mutated by the interceptor.
|
|
type UnaryServerInfo struct {
|
|
// Server is the service implementation the user provides. This is read-only.
|
|
Server interface{}
|
|
// FullMethod is the full RPC method string, i.e., /package.service/method.
|
|
FullMethod string
|
|
}
|
|
|
|
// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal
|
|
// execution of a unary RPC.
|
|
//
|
|
// If a UnaryHandler returns an error, it should either be produced by the
|
|
// status package, or be one of the context errors. Otherwise, gRPC will use
|
|
// codes.Unknown as the status code and err.Error() as the status message of the
|
|
// RPC.
|
|
type UnaryHandler func(ctx context.Context, req interface{}) (interface{}, error)
|
|
|
|
// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info
|
|
// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper
|
|
// of the service method implementation. It is the responsibility of the interceptor to invoke handler
|
|
// to complete the RPC.
|
|
type UnaryServerInterceptor func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (resp interface{}, err error)
|
|
|
|
// StreamServerInfo consists of various information about a streaming RPC on
|
|
// server side. All per-rpc information may be mutated by the interceptor.
|
|
type StreamServerInfo struct {
|
|
// FullMethod is the full RPC method string, i.e., /package.service/method.
|
|
FullMethod string
|
|
// IsClientStream indicates whether the RPC is a client streaming RPC.
|
|
IsClientStream bool
|
|
// IsServerStream indicates whether the RPC is a server streaming RPC.
|
|
IsServerStream bool
|
|
}
|
|
|
|
// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server.
|
|
// info contains all the information of this RPC the interceptor can operate on. And handler is the
|
|
// service method implementation. It is the responsibility of the interceptor to invoke handler to
|
|
// complete the RPC.
|
|
type StreamServerInterceptor func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error
|