mirror of
https://github.com/matrix-construct/construct
synced 2024-10-31 19:08:59 +01:00
36 lines
952 B
C++
36 lines
952 B
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_UTIL_REENTRANCE_H
|
|
|
|
namespace ircd {
|
|
inline namespace util
|
|
{
|
|
template<bool &entered> struct reentrance_assertion;
|
|
}}
|
|
|
|
/// Simple assert for reentrancy; useful when static variables are in play.
|
|
/// You have to place `entered` and give it the proper linkage you want.
|
|
template<bool &entered>
|
|
struct ircd::util::reentrance_assertion
|
|
{
|
|
reentrance_assertion()
|
|
{
|
|
assert(!entered);
|
|
entered = true;
|
|
}
|
|
|
|
~reentrance_assertion()
|
|
{
|
|
assert(entered);
|
|
entered = false;
|
|
}
|
|
};
|