mirror of
https://github.com/matrix-construct/construct
synced 2024-07-05 10:08:36 +02:00
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_MODE_LEASE_H
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#ifdef __cplusplus
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namespace ircd {
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template<class T,
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mode_table<T> &table>
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class mode_lease
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{
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using mask_t = typename mode_table<T>::mask_t;
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char c = '\0';
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virtual void release() noexcept { table[c] = { 0 }; }
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public:
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explicit operator const char &() const { return c; }
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operator const mask_t &() const { return static_cast<const mask_t &>(table[c]); }
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bool operator!() const { return !c; }
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template<class... args> mode_lease(const char &c, args&&...);
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mode_lease() = default;
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mode_lease(mode_lease &&) noexcept;
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mode_lease(const mode_lease &) = delete;
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virtual ~mode_lease() noexcept;
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};
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template<class T,
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mode_table<T> &table>
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template<class... args>
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mode_lease<T, table>::mode_lease(const char &c,
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args&&... a)
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:c(c)
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{
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if(!c)
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return;
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if(!!table[c])
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throw mode_filled("Character [%c] is already leased", c);
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table[c] = { find_slot(table), std::forward<args>(a)... };
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}
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template<class T,
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mode_table<T> &table>
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mode_lease<T, table>::mode_lease(mode_lease &&other)
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noexcept
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:c(other.c)
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{
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other.c = '\0';
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}
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template<class T,
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mode_table<T> &table>
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mode_lease<T, table>::~mode_lease()
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noexcept
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{
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if(!c)
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return;
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release();
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}
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} // namespace ircd
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#endif // __cplusplus
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