Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Copyright (C) 2004-2005 Open Source Telecom Corporation. |
| 2 | // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| 3 | // |
| 4 | // This program is free software; you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation; either version 2 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program; if not, write to the Free Software |
| 16 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | // |
| 18 | // As a special exception, you may use this file as part of a free software |
| 19 | // library without restriction. Specifically, if other files instantiate |
| 20 | // templates or use macros or inline functions from this file, or you compile |
| 21 | // this file and link it with other files to produce an executable, this |
| 22 | // file does not by itself cause the resulting executable to be covered by |
| 23 | // the GNU General Public License. This exception does not however |
| 24 | // invalidate any other reasons why the executable file might be covered by |
| 25 | // the GNU General Public License. |
| 26 | // |
| 27 | // This exception applies only to the code released under the name GNU |
| 28 | // Common C++. If you copy code from other releases into a copy of GNU |
| 29 | // Common C++, as the General Public License permits, the exception does |
| 30 | // not apply to the code that you add in this way. To avoid misleading |
| 31 | // anyone as to the status of such modified files, you must delete |
| 32 | // this exception notice from them. |
| 33 | // |
| 34 | // If you write modifications of your own for GNU Common C++, it is your choice |
| 35 | // whether to permit this exception to apply to your modifications. |
| 36 | // If you do not wish that, delete this exception notice. |
| 37 | // |
| 38 | |
| 39 | #include <cc++/config.h> |
| 40 | #include <cc++/export.h> |
| 41 | #include <cc++/thread.h> |
| 42 | #include <cc++/object.h> |
| 43 | #include "private.h" |
| 44 | |
| 45 | #ifdef CCXX_NAMESPACES |
| 46 | namespace ost { |
| 47 | #endif |
| 48 | |
| 49 | LinkedSingle::~LinkedSingle() {} |
| 50 | |
| 51 | LinkedSingle *LinkedSingle::getFirst(void) |
| 52 | { |
| 53 | return this; |
| 54 | } |
| 55 | |
| 56 | LinkedSingle *LinkedSingle::getLast(void) |
| 57 | { |
| 58 | LinkedSingle *obj = this; |
| 59 | |
| 60 | while(obj->nextObject) |
| 61 | obj = obj->nextObject; |
| 62 | |
| 63 | return obj; |
| 64 | } |
| 65 | |
| 66 | void LinkedSingle::insert(LinkedSingle& obj) |
| 67 | { |
| 68 | obj.nextObject = nextObject; |
| 69 | nextObject = &obj; |
| 70 | } |
| 71 | |
| 72 | LinkedSingle &LinkedSingle::operator+=(LinkedSingle &obj) |
| 73 | { |
| 74 | insert(obj); |
| 75 | return *this; |
| 76 | } |
| 77 | |
| 78 | LinkedDouble::~LinkedDouble() |
| 79 | { |
| 80 | detach(); |
| 81 | } |
| 82 | |
| 83 | void LinkedDouble::enterLock() {} |
| 84 | |
| 85 | void LinkedDouble::leaveLock() {} |
| 86 | |
| 87 | LinkedDouble *LinkedDouble::firstObject() |
| 88 | { |
| 89 | LinkedDouble *node = this; |
| 90 | |
| 91 | while(node->prevObject) |
| 92 | node = node->prevObject; |
| 93 | |
| 94 | return node; |
| 95 | } |
| 96 | |
| 97 | LinkedDouble *LinkedDouble::lastObject() |
| 98 | { |
| 99 | LinkedDouble *node = this; |
| 100 | |
| 101 | while(node->nextObject) |
| 102 | node = node->nextObject; |
| 103 | |
| 104 | return node; |
| 105 | } |
| 106 | |
| 107 | LinkedDouble *LinkedDouble::getFirst(void) |
| 108 | { |
| 109 | LinkedDouble *node; |
| 110 | |
| 111 | enterLock(); |
| 112 | node = firstObject(); |
| 113 | leaveLock(); |
| 114 | |
| 115 | return node; |
| 116 | } |
| 117 | |
| 118 | LinkedDouble *LinkedDouble::getLast(void) |
| 119 | { |
| 120 | LinkedDouble *node; |
| 121 | |
| 122 | enterLock(); |
| 123 | node = lastObject(); |
| 124 | leaveLock(); |
| 125 | |
| 126 | return node; |
| 127 | } |
| 128 | |
| 129 | LinkedDouble *LinkedDouble::getInsert(void) |
| 130 | { |
| 131 | return getLast(); |
| 132 | } |
| 133 | |
| 134 | void LinkedDouble::insert(LinkedDouble& obj, InsertMode position) |
| 135 | { |
| 136 | LinkedDouble *node; |
| 137 | |
| 138 | enterLock(); |
| 139 | obj.detach(); |
| 140 | |
| 141 | switch ( position ) { |
| 142 | case modeAtFirst: |
| 143 | node = firstObject(); |
| 144 | obj.nextObject = node; |
| 145 | node->prevObject = &obj; |
| 146 | break; |
| 147 | |
| 148 | case modeBefore: |
| 149 | obj.nextObject = this; |
| 150 | obj.prevObject = this->prevObject; |
| 151 | this->prevObject = &obj; |
| 152 | if (obj.prevObject) |
| 153 | obj.prevObject->nextObject = &obj; |
| 154 | break; |
| 155 | |
| 156 | case modeAfter: |
| 157 | obj.nextObject = this->nextObject; |
| 158 | obj.prevObject = this; |
| 159 | this->nextObject = &obj; |
| 160 | if (obj.nextObject) |
| 161 | obj.nextObject->prevObject = &obj; |
| 162 | break; |
| 163 | |
| 164 | case modeAtLast: |
| 165 | default: |
| 166 | node = lastObject(); |
| 167 | obj.nextObject = node->nextObject; |
| 168 | obj.prevObject = node; |
| 169 | node->nextObject = &obj; |
| 170 | if(obj.nextObject) |
| 171 | obj.nextObject->prevObject = &obj; |
| 172 | break; |
| 173 | } |
| 174 | leaveLock(); |
| 175 | } |
| 176 | |
| 177 | void LinkedDouble::detach(void) |
| 178 | { |
| 179 | enterLock(); |
| 180 | |
| 181 | if(prevObject) |
| 182 | prevObject->nextObject = nextObject; |
| 183 | |
| 184 | if(nextObject) |
| 185 | nextObject->prevObject = prevObject; |
| 186 | |
| 187 | prevObject = NULL; |
| 188 | nextObject = NULL; |
| 189 | |
| 190 | leaveLock(); |
| 191 | } |
| 192 | |
| 193 | LinkedDouble &LinkedDouble::operator+=(LinkedDouble &obj) |
| 194 | { |
| 195 | insert(obj); |
| 196 | return *this; |
| 197 | } |
| 198 | |
| 199 | LinkedDouble &LinkedDouble::operator--() |
| 200 | { |
| 201 | detach(); |
| 202 | return *this; |
| 203 | } |
| 204 | |
| 205 | #ifdef CCXX_NAMESPACES |
| 206 | } |
| 207 | #endif |
| 208 | |
| 209 | /** EMACS ** |
| 210 | * Local variables: |
| 211 | * mode: c++ |
| 212 | * c-basic-offset: 4 |
| 213 | * End: |
| 214 | */ |