84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (c) 2017, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef TINS_PDU_UTILS_H
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#define TINS_PDU_UTILS_H
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#include <tins/macros.h>
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#include <tins/pdu.h>
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#include <tins/detail/type_traits.h>
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namespace Tins {
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namespace Utils {
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/**
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* \brief Converts a PDUType to a string.
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* \param pduType The PDUType to be converted.
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* \return A string representation, for example "DOT11_QOS_DATA".
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*/
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TINS_API std::string to_string(PDU::PDUType pduType);
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template <typename T>
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struct is_pdu {
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template <typename U>
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static char test(typename U::PDUType*);
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template <typename U>
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static long test(...);
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static const bool value = sizeof(test<T>(0)) == 1;
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};
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/**
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* Returns the argument.
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*/
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inline PDU& dereference_until_pdu(PDU& pdu) {
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return pdu;
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}
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/**
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* \brief Dereferences the parameter until a PDU is found.
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*
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* This function dereferences the parameter until a PDU object
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* is found. When it's found, it is returned.
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*
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* \param value The parameter to be dereferenced.
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*/
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template<typename T>
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inline typename Internals::enable_if<!is_pdu<T>::value, PDU&>::type
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dereference_until_pdu(T& value) {
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return dereference_until_pdu(*value);
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}
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} // Utils
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} // Tins
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#endif // TINS_PDU_UTILS_H
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