39 lines
817 B
C++
39 lines
817 B
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2018-2019 Danny Robson <danny@nerdcruft.net>
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*/
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#include "ticketlock.hpp"
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#include "primitive.hpp"
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using cruft::thread::ticketlock;
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///////////////////////////////////////////////////////////////////////////////
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ticketlock::ticketlock ():
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current (0),
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next (0)
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{ }
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///////////////////////////////////////////////////////////////////////////////
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void
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ticketlock::lock (void)
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{
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auto self = next++;
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while (current != self)
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pause ();
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}
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//-----------------------------------------------------------------------------
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void
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ticketlock::unlock (void)
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{
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++current;
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}
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