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Diffstat (limited to 'src/utils/countedptr.h')
| -rw-r--r-- | src/utils/countedptr.h | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/utils/countedptr.h b/src/utils/countedptr.h deleted file mode 100644 index 3edc9c3d..00000000 --- a/src/utils/countedptr.h +++ /dev/null @@ -1,167 +0,0 @@ -/* - * The Mana World Server - * Copyright 2004 The Mana World Development Team - * - * This file is part of The Mana World. - * - * The Mana World 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 2 of the License, or any later version. - * - * The Mana World 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 The Mana World; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * $Id$ - */ - - -#ifndef _TMWSERV_COUNTED_PTR_H_ -#define _TMWSERV_COUNTED_PTR_H_ - -namespace utils -{ - - -/** - * Class for counted reference semantics. It deletes the object to which it - * refers when the last CountedPtr that refers to it is destroyed. - * - * @copyright Nicolai M. Josuttis - * (The C++ standard library: a tutorial and reference). - * - * Notes from kindjal: - * - should we use the Boost's shared_ptr instead? - * - reference-counted smart pointers are very useful if we want automatic - * memory management with STL containers (e.g. vector of pointers). - */ -template <typename T> -class CountedPtr -{ - public: - /** - * Constructor. - * Initialize pointer with existing pointer. - * - * It is required that the pointer p is a return value of new. - */ - explicit - CountedPtr(T* p = 0) - : ptr(p), - count(new long(1)) - { - // NOOP - } - - - /** - * Destructor. - * Delete value if this was the last owner. - */ - ~CountedPtr(void) - throw() - { - dispose(); - } - - - /** - * Copy pointer (one more owner). - */ - CountedPtr(const CountedPtr<T>& p) - throw() - : ptr(p.ptr), - count(p.count) - { - ++*count; - } - - /** - * Copy pointer with static cast (one more owner). - */ - template <typename U> - explicit CountedPtr(const CountedPtr<U>& p) - throw() - : ptr(static_cast<T*>(p.ptr)), - count(p.count) - { - ++*count; - } - - /** - * Assignment (unshare old and share new value). - */ - CountedPtr<T>& - operator=(const CountedPtr<T>& p) - throw() - { - if (this != &p) { - dispose(); - ptr = p.ptr; - count = p.count; - ++*count; - } - - return *this; - } - - /** - * Access the value to which the pointer refers. - */ - T& - operator*(void) const - throw() - { - return *ptr; - } - - - /** - * Access the pointer. - */ - T* - operator->(void) const - throw() - { - return ptr; - } - - - /** - * Get the pointer (mimic std::auto_ptr::get()). - */ - T* - get(void) const - throw() - { - return ptr; - } - - - private: - /** - * Manage the counter and free memory. - */ - void - dispose(void) - { - if (--*count == 0) { - delete count; - delete ptr; - } - } - - T* ptr; /**< pointer to the value */ - long* count; /**< shared number of owners */ - - template<typename U> friend class CountedPtr; -}; - -} // namespace utils - -#endif // _TMWSERV_COUNTED_PTR_H_ |