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#ifndef QPID_SYS_CODEC_H
#define QPID_SYS_CODEC_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
#include <cstddef>
namespace qpid {
namespace sys {
/**
* Generic codec interface
*/
class Codec
{
public:
virtual ~Codec() {}
/** Decode from buffer, return number of bytes decoded.
* @return may be less than size if there was incomplete
* data at the end of the buffer.
*/
virtual std::size_t decode(const char* buffer, std::size_t size) = 0;
/** Encode into buffer, return number of bytes encoded */
virtual std::size_t encode(char* buffer, std::size_t size) = 0;
/** Return true if we have data to encode */
virtual bool canEncode() = 0;
};
}} // namespace qpid::sys
#endif /*!QPID_SYS_CODEC_H*/
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