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#ifndef QPID_FRAMING_UUID_H
#define QPID_FRAMING_UUID_H
/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* 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.
*
*/
#include "qpid/CommonImportExport.h"
#include "qpid/sys/IntegerTypes.h"
#include <boost/array.hpp>
#include <ostream>
#include <istream>
namespace qpid {
namespace framing {
class Buffer;
/**
* A UUID is represented as a boost::array of 16 bytes.
*
* Full value semantics, operators ==, < etc. are provided by
* boost::array so Uuid can be the key type in a map etc.
*
* TODO: change this implementation as it leaks boost into the
* client API
*/
struct Uuid : public boost::array<uint8_t, 16> {
/** If unique is true, generate a unique ID else a null ID. */
QPID_COMMON_EXTERN Uuid(bool unique=false);
/** Copy from 16 bytes of data. */
QPID_COMMON_EXTERN Uuid(const uint8_t* data);
// Default op= and copy ctor are fine.
// boost::array gives us ==, < etc.
/** Copy from 16 bytes of data. */
QPID_COMMON_EXTERN void assign(const uint8_t* data);
/** Set to a new unique identifier. */
QPID_COMMON_EXTERN void generate();
/** Set to all zeros. */
QPID_COMMON_EXTERN void clear();
/** Test for null (all zeros). */
QPID_COMMON_EXTERN bool isNull() const;
QPID_COMMON_INLINE_EXTERN operator bool() const { return !isNull(); }
QPID_COMMON_INLINE_EXTERN bool operator!() const { return isNull(); }
QPID_COMMON_EXTERN void encode(framing::Buffer& buf) const;
QPID_COMMON_EXTERN void decode(framing::Buffer& buf);
QPID_COMMON_INLINE_EXTERN uint32_t encodedSize() const
{ return static_cast<uint32_t>(size()); }
/** String value in format 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb. */
QPID_COMMON_EXTERN std::string str() const;
template <class S> void serialize(S& s) {
s.raw(begin(), size());
}
};
/** Print in format 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb. */
QPID_COMMON_EXTERN std::ostream& operator<<(std::ostream&, Uuid);
/** Read from format 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb. */
QPID_COMMON_EXTERN std::istream& operator>>(std::istream&, Uuid&);
}} // namespace qpid::framing
#endif /*!QPID_FRAMING_UUID_H*/
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