/usr/include/commoncpp/pointer.h is in libucommon-dev 7.0.0-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // Copyright (C) 2001-2005 Open Source Telecom Corporation.
// Copyright (C) 2006-2014 David Sugar, Tycho Softworks.
// Copyright (C) 2015 Cherokees of Idaho.
//
// 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 2 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 Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception to the GNU General Public License, permission is
// granted for additional uses of the text contained in its release
// of Common C++.
//
// The exception is that, if you link the Common C++ library with other
// files to produce an executable, this does not by itself cause the
// resulting executable to be covered by the GNU General Public License.
// Your use of that executable is in no way restricted on account of
// linking the Common C++ library code into it.
//
// This exception does not however invalidate any other reasons why
// the executable file might be covered by the GNU General Public License.
//
// This exception applies only to the code released under the
// name Common C++. If you copy code from other releases into a copy of
// Common C++, as the General Public License permits, the exception does
// not apply to the code that you add in this way. To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
//
// If you write modifications of your own for Common C++, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice.
/**
* @file commoncpp/pointer.h
* @short Template for creating reference count managed smart pointers.
**/
#ifndef COMMONCPP_POINTER_H_
#define COMMONCPP_POINTER_H_
#ifndef COMMONCPP_CONFIG_H_
#include <commoncpp/config.h>
#endif
namespace ost {
/**
* Used to create and manage referece counted pointers.
*
* @author David Sugar <dyfet@gnutelephony.org>
* @short reference counted pointer template.
*/
template <class T>
class Pointer
{
protected:
unsigned *ptrCount;
T *ptrObject;
inline void ptrDetach(void) {
if(ptrCount && --(*ptrCount)==0) {
delete ptrObject;
delete ptrCount;
}
ptrObject = NULL;
ptrCount = NULL;
}
public:
inline explicit Pointer(T* ptr = NULL) : ptrObject(ptr) {
ptrCount = new unsigned;
*ptrCount = 1;
}
inline Pointer(const Pointer<T> &ref) {
ptrObject = ref.ptrObject;
ptrCount = ref.ptrCount;
++(*ptrCount);
}
inline virtual ~Pointer() {
ptrDetach();
}
inline Pointer& operator=(const Pointer<T> &ref) {
if(this != &ref) {
ptrDetach();
ptrObject = ref.ptrObject;
ptrCount = ref.ptrCount;
++(*ptrCount);
}
return *this;
}
inline T& operator*() const {
return *ptrObject;
}
inline T* getObject() const {
return ptrObject;
}
inline T* operator->() const {
return ptrObject;
}
inline operator bool() const {
return (*ptrCount != 1);
}
inline bool operator!() const {
return (*ptrCount == 1);
}
inline int operator++() const {
return ++(*ptrCount);
}
inline int operator--() const {
if(*ptrCount == 1) {
delete this;
return 0;
}
return --(*ptrCount);
}
};
} // namespace ost
#endif
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