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91 lines
4.7 KiB
Go
91 lines
4.7 KiB
Go
/*
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*
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* Copyright 2016, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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package grpc
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import (
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"golang.org/x/net/context"
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)
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// UnaryInvoker is called by UnaryClientInterceptor to complete RPCs.
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type UnaryInvoker func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error
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// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. invoker is the handler to complete the RPC
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// and it is the responsibility of the interceptor to call it.
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// This is the EXPERIMENTAL API.
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type UnaryClientInterceptor func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error
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// Streamer is called by StreamClientInterceptor to create a ClientStream.
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type Streamer func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error)
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// StreamClientInterceptor intercepts the creation of ClientStream. It may return a custom ClientStream to intercept all I/O
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// operations. streamer is the handlder to create a ClientStream and it is the responsibility of the interceptor to call it.
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// This is the EXPERIMENTAL API.
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type StreamClientInterceptor func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream, error)
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// UnaryServerInfo consists of various information about a unary RPC on
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// server side. All per-rpc information may be mutated by the interceptor.
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type UnaryServerInfo struct {
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// Server is the service implementation the user provides. This is read-only.
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Server interface{}
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// FullMethod is the full RPC method string, i.e., /package.service/method.
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FullMethod string
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}
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// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal
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// execution of a unary RPC.
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type UnaryHandler func(ctx context.Context, req interface{}) (interface{}, error)
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// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info
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// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper
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// of the service method implementation. It is the responsibility of the interceptor to invoke handler
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// to complete the RPC.
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type UnaryServerInterceptor func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (resp interface{}, err error)
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// StreamServerInfo consists of various information about a streaming RPC on
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// server side. All per-rpc information may be mutated by the interceptor.
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type StreamServerInfo struct {
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// FullMethod is the full RPC method string, i.e., /package.service/method.
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FullMethod string
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// IsClientStream indicates whether the RPC is a client streaming RPC.
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IsClientStream bool
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// IsServerStream indicates whether the RPC is a server streaming RPC.
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IsServerStream bool
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}
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// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server.
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// info contains all the information of this RPC the interceptor can operate on. And handler is the
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// service method implementation. It is the responsibility of the interceptor to invoke handler to
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// complete the RPC.
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type StreamServerInterceptor func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error
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