mirror of
https://github.com/matrix-construct/construct
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36 lines
952 B
C++
36 lines
952 B
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 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. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_UTIL_REENTRANCE_H
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namespace ircd {
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inline namespace util
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{
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template<bool &entered> struct reentrance_assertion;
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}}
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/// Simple assert for reentrancy; useful when static variables are in play.
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/// You have to place `entered` and give it the proper linkage you want.
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template<bool &entered>
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struct ircd::util::reentrance_assertion
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{
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reentrance_assertion()
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{
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assert(!entered);
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entered = true;
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}
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~reentrance_assertion()
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{
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assert(entered);
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entered = false;
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}
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};
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