mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2025-04-26 17:03:43 +02:00
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
|
|
* Copyright (c)2013-2020 ZeroTier, Inc.
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file in the project's root directory.
|
|
*
|
|
* Change Date: 2024-01-01
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2.0 of the Apache License.
|
|
*/
|
|
/****/
|
|
|
|
#ifndef ZT_SCOPEDPTR_HPP
|
|
#define ZT_SCOPEDPTR_HPP
|
|
|
|
#include "Constants.hpp"
|
|
|
|
namespace ZeroTier {
|
|
|
|
/**
|
|
* Simple scoped pointer
|
|
*
|
|
* This is used in the core to avoid requiring C++11 and because auto_ptr is weird.
|
|
*/
|
|
template<typename T>
|
|
class ScopedPtr
|
|
{
|
|
public:
|
|
explicit ZT_ALWAYS_INLINE ScopedPtr(T *const p) : _p(p) {}
|
|
ZT_ALWAYS_INLINE ~ScopedPtr() { delete _p; }
|
|
|
|
ZT_ALWAYS_INLINE T *operator->() const { return _p; }
|
|
ZT_ALWAYS_INLINE T &operator*() const { return *_p; }
|
|
explicit ZT_ALWAYS_INLINE operator bool() const { return (_p != (T *)0); }
|
|
ZT_ALWAYS_INLINE T *ptr() const { return _p; }
|
|
|
|
ZT_ALWAYS_INLINE void swap(const ScopedPtr &p)
|
|
{
|
|
T *const tmp = _p;
|
|
_p = p._p;
|
|
p._p = tmp;
|
|
}
|
|
|
|
ZT_ALWAYS_INLINE bool operator==(const ScopedPtr &p) const { return (_p == p._p); }
|
|
ZT_ALWAYS_INLINE bool operator!=(const ScopedPtr &p) const { return (_p != p._p); }
|
|
ZT_ALWAYS_INLINE bool operator==(T *const p) const { return (_p == p); }
|
|
ZT_ALWAYS_INLINE bool operator!=(T *const p) const { return (_p != p); }
|
|
|
|
private:
|
|
ZT_ALWAYS_INLINE ScopedPtr() {}
|
|
ZT_ALWAYS_INLINE ScopedPtr(const ScopedPtr &p) : _p(nullptr) {}
|
|
ZT_ALWAYS_INLINE ScopedPtr &operator=(const ScopedPtr &p) { return *this; }
|
|
T *const _p;
|
|
};
|
|
|
|
} // namespace ZeroTier
|
|
|
|
namespace std {
|
|
template<typename T>
|
|
ZT_ALWAYS_INLINE void swap(ZeroTier::ScopedPtr<T> &a,ZeroTier::ScopedPtr<T> &b) { a.swap(b); }
|
|
}
|
|
|
|
#endif
|