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Safety upgrades to code

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Adam Ierymenko 2019-08-28 10:34:32 -07:00
parent 1977b9b764
commit 59ee0cfe88
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9 changed files with 196 additions and 191 deletions
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node/ScopedPtr.hpp Normal file
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/*
* Copyright (c)2019 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: 2023-01-01
*
* 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:
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; }
ZT_ALWAYS_INLINE operator bool() const { return (_p != (T *)0); }
ZT_ALWAYS_INLINE T *ptr() const { return _p; }
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() {}
T *const _p;
};
} // namespace ZeroTier
#endif