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/*
*
* Copyright 2015 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.
*
*/
#import "GRXWriter.h"
/**
* A "proxy" class that simply forwards values, completion, and errors from its input writer to its
* writeable.
* It is useful as a superclass for pipes that act as a transformation of their
* input writer, and for classes that represent objects with input and
* output sequences of values, like an RPC.
*
* Thread-safety:
* All messages sent to this object need to be serialized. When it is started, the writer it wraps
* is started in the same thread. Manual state changes are propagated to the wrapped writer in the
* same thread too. Importantly, all messages the wrapped writer sends to its writeable need to be
* serialized with any message sent to this object.
*/
@interface GRXForwardingWriter : GRXWriter
- (instancetype)initWithWriter:(GRXWriter *)writer NS_DESIGNATED_INITIALIZER;
@end
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