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/*
*
* Copyright 2015-2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#import <Foundation/Foundation.h>
#include <grpc/grpc.h>
typedef void(^GRPCQueueCompletionHandler)(bool success);
/**
* This class lets one more easily use |grpc_completion_queue|. To use it, pass the value of the
* |unmanagedQueue| property of an instance of this class to |grpc_channel_create_call|. Then for
* every |grpc_call_*| method that accepts a tag, you can pass a block of type
* |GRPCQueueCompletionHandler| (remembering to cast it using |__bridge_retained|). The block is
* guaranteed to eventually be called, by a concurrent queue, and then released. Each such block is
* passed a |bool| that tells if the operation was successful.
*
* Release the GRPCCompletionQueue object only after you are not going to pass any more blocks to
* the |grpc_call| that's using it.
*/
@interface GRPCCompletionQueue : NSObject
@property(nonatomic, readonly) grpc_completion_queue *unmanagedQueue;
+ (instancetype)completionQueue;
@end
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