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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.
*
*/
#ifndef GRPCXX_IMPL_CODEGEN_COMPLETION_QUEUE_TAG_H
#define GRPCXX_IMPL_CODEGEN_COMPLETION_QUEUE_TAG_H
namespace grpc {
namespace internal {
/// An interface allowing implementors to process and filter event tags.
class CompletionQueueTag {
public:
virtual ~CompletionQueueTag() {}
/// Called prior to returning from Next(), return value is the status of the
/// operation (return status is the default thing to do). If this function
/// returns false, the tag is dropped and not returned from the completion
/// queue
virtual bool FinalizeResult(void** tag, bool* status) = 0;
};
} // namespace internal
} // namespace grpc
#endif // GRPCXX_IMPL_CODEGEN_COMPLETION_QUEUE_TAG_H
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