New git repository for release - version 0.2.0 tagged
This commit is contained in:
commit
150850b800
261 changed files with 75902 additions and 0 deletions
113
node/AtomicCounter.hpp
Normal file
113
node/AtomicCounter.hpp
Normal file
|
@ -0,0 +1,113 @@
|
|||
/*
|
||||
* ZeroTier One - Global Peer to Peer Ethernet
|
||||
* Copyright (C) 2012-2013 ZeroTier Networks LLC
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* --
|
||||
*
|
||||
* ZeroTier may be used and distributed under the terms of the GPLv3, which
|
||||
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
|
||||
*
|
||||
* If you would like to embed ZeroTier into a commercial application or
|
||||
* redistribute it in a modified binary form, please contact ZeroTier Networks
|
||||
* LLC. Start here: http://www.zerotier.com/
|
||||
*/
|
||||
|
||||
#ifndef _ZT_ATOMICCOUNTER_HPP
|
||||
#define _ZT_ATOMICCOUNTER_HPP
|
||||
|
||||
#include "Mutex.hpp"
|
||||
#include "NonCopyable.hpp"
|
||||
|
||||
namespace ZeroTier {
|
||||
|
||||
/**
|
||||
* Simple atomic counter supporting increment and decrement
|
||||
*/
|
||||
class AtomicCounter : NonCopyable
|
||||
{
|
||||
public:
|
||||
/**
|
||||
* Initialize counter at zero
|
||||
*/
|
||||
AtomicCounter()
|
||||
throw() :
|
||||
_v(0)
|
||||
{
|
||||
}
|
||||
|
||||
inline int operator*() const
|
||||
throw()
|
||||
{
|
||||
#ifdef __GNUC__
|
||||
return __sync_or_and_fetch(const_cast <int *> (&_v),0);
|
||||
#else
|
||||
_l.lock();
|
||||
int v = _v;
|
||||
_l.unlock();
|
||||
return v;
|
||||
#endif
|
||||
}
|
||||
|
||||
inline int operator++()
|
||||
throw()
|
||||
{
|
||||
#ifdef __GNUC__
|
||||
return __sync_add_and_fetch(&_v,1);
|
||||
#else
|
||||
_l.lock();
|
||||
int v = ++_v;
|
||||
_l.unlock();
|
||||
return v;
|
||||
#endif
|
||||
}
|
||||
|
||||
inline int operator--()
|
||||
throw()
|
||||
{
|
||||
#ifdef __GNUC__
|
||||
return __sync_sub_and_fetch(&_v,1);
|
||||
#else
|
||||
_l.lock();
|
||||
int v = --_v;
|
||||
_l.unlock();
|
||||
return v;
|
||||
#endif
|
||||
}
|
||||
|
||||
inline bool operator==(const AtomicCounter &i) const throw() { return (**this == *i); }
|
||||
inline bool operator!=(const AtomicCounter &i) const throw() { return (**this != *i); }
|
||||
inline bool operator>(const AtomicCounter &i) const throw() { return (**this > *i); }
|
||||
inline bool operator<(const AtomicCounter &i) const throw() { return (**this < *i); }
|
||||
inline bool operator>=(const AtomicCounter &i) const throw() { return (**this >= *i); }
|
||||
inline bool operator<=(const AtomicCounter &i) const throw() { return (**this <= *i); }
|
||||
|
||||
inline bool operator==(const int i) const throw() { return (**this == i); }
|
||||
inline bool operator!=(const int i) const throw() { return (**this != i); }
|
||||
inline bool operator>(const int i) const throw() { return (**this > i); }
|
||||
inline bool operator<(const int i) const throw() { return (**this < i); }
|
||||
inline bool operator>=(const int i) const throw() { return (**this >= i); }
|
||||
inline bool operator<=(const int i) const throw() { return (**this <= i); }
|
||||
|
||||
private:
|
||||
int _v;
|
||||
#ifndef __GNUC__
|
||||
Mutex _l;
|
||||
#endif
|
||||
};
|
||||
|
||||
} // namespace ZeroTier
|
||||
|
||||
#endif
|
Loading…
Add table
Add a link
Reference in a new issue