dark/zerotiertspu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

More cleanup, Linux build fixes.

Browse source
This commit is contained in:
Adam Ierymenko 2017-07-07 06:50:40 -07:00
parent f23a43fb81
commit 6fc70f7c16
7 changed files with 59 additions and 324 deletions
Download patch file Download diff file Expand all files Collapse all files

55
node/SharedPtr.hpp
View file

@ -33,41 +33,19 @@
namespace ZeroTier {
/**
* Simple reference counted pointer
* Simple zero-overhead introspective reference counted pointer
*
* This is an introspective shared pointer. Classes that need to be reference
* counted must list this as a 'friend' and must have a private instance of
* AtomicCounter called __refCount. They should also have private destructors,
* since only this class should delete them.
*
* Because this is introspective, it is safe to apply to a naked pointer
* multiple times provided there is always at least one holding SharedPtr.
*
* Once C++11 is ubiquitous, this and a few other things like Thread might get
* torn out for their standard equivalents.
* AtomicCounter called __refCount.
*/
template<typename T>
class SharedPtr
{
public:
SharedPtr()
throw() :
_ptr((T *)0)
{
}
SharedPtr(T *obj)
throw() :
_ptr(obj)
{
++obj->__refCount;
}
SharedPtr(const SharedPtr &sp)
throw() :
_ptr(sp._getAndInc())
{
}
SharedPtr() : _ptr((T *)0) {}
SharedPtr(T *obj) : _ptr(obj) { ++obj->__refCount; }
SharedPtr(const SharedPtr &sp) : _ptr(sp._getAndInc()) {}
~SharedPtr()
{
@ -110,21 +88,20 @@ public:
* @param with Pointer to swap with
*/
inline void swap(SharedPtr &with)
throw()
{
T *tmp = _ptr;
_ptr = with._ptr;
with._ptr = tmp;
}
inline operator bool() const throw() { return (_ptr != (T *)0); }
inline T &operator*() const throw() { return *_ptr; }
inline T *operator->() const throw() { return _ptr; }
inline operator bool() const { return (_ptr != (T *)0); }
inline T &operator*() const { return *_ptr; }
inline T *operator->() const { return _ptr; }
/**
* @return Raw pointer to held object
*/
inline T *ptr() const throw() { return _ptr; }
inline T *ptr() const { return _ptr; }
/**
* Set this pointer to NULL
@ -162,22 +139,20 @@ public:
}
}
inline bool operator==(const SharedPtr &sp) const throw() { return (_ptr == sp._ptr); }
inline bool operator!=(const SharedPtr &sp) const throw() { return (_ptr != sp._ptr); }
inline bool operator>(const SharedPtr &sp) const throw() { return (_ptr > sp._ptr); }
inline bool operator<(const SharedPtr &sp) const throw() { return (_ptr < sp._ptr); }
inline bool operator>=(const SharedPtr &sp) const throw() { return (_ptr >= sp._ptr); }
inline bool operator<=(const SharedPtr &sp) const throw() { return (_ptr <= sp._ptr); }
inline bool operator==(const SharedPtr &sp) const { return (_ptr == sp._ptr); }
inline bool operator!=(const SharedPtr &sp) const { return (_ptr != sp._ptr); }
inline bool operator>(const SharedPtr &sp) const { return (_ptr > sp._ptr); }
inline bool operator<(const SharedPtr &sp) const { return (_ptr < sp._ptr); }
inline bool operator>=(const SharedPtr &sp) const { return (_ptr >= sp._ptr); }
inline bool operator<=(const SharedPtr &sp) const { return (_ptr <= sp._ptr); }
private:
inline T *_getAndInc() const
throw()
{
if (_ptr)
++_ptr->__refCount;
return _ptr;
}
T *_ptr;
};