145 lines
3.3 KiB
C++
145 lines
3.3 KiB
C++
/**
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* Iterator.cpp
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* This file is part of the YATE Project http://YATE.null.ro
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*
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* Yet Another Telephony Engine - a fully featured software PBX and IVR
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* Copyright (C) 2004-2014 Null Team
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*
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* This software is distributed under multiple licenses;
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* see the COPYING file in the main directory for licensing
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* information for this specific distribution.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include "yateclass.h"
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using namespace TelEngine;
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ListIterator::ListIterator(ObjList& list, int offset)
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: m_objects(0), m_hashes(0)
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{
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assign(list,offset);
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}
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ListIterator::ListIterator(HashList& list, int offset)
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: m_objects(0), m_hashes(0)
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{
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assign(list,offset);
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}
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ListIterator::~ListIterator()
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{
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m_length = 0;
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delete[] m_objects;
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if (m_hashes)
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delete[] m_hashes;
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}
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void ListIterator::clear()
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{
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m_length = 0;
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m_current = 0;
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m_objList = 0;
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m_hashList = 0;
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GenObject** tmp = m_objects;
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m_objects = 0;
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delete[] tmp;
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if (m_hashes) {
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unsigned int* tmph = m_hashes;
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m_hashes = 0;
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delete[] tmph;
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}
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}
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void ListIterator::assign(ObjList& list, int offset)
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{
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clear();
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m_objList = &list;
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m_length = list.count();
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if (!m_length)
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return;
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m_objects = new GenObject* [m_length];
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offset = (m_length - offset) % m_length;
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unsigned int i = 0;
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for (ObjList* l = list.skipNull(); i < m_length; l = l->skipNext()) {
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if (!l)
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break;
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m_objects[((i++) + offset) % m_length] = l->get();
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}
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while (i < m_length)
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m_objects[((i++) + offset) % m_length] = 0;
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}
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void ListIterator::assign(HashList& list, int offset)
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{
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clear();
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m_hashList = &list;
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m_length = list.count();
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if (!m_length)
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return;
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m_objects = new GenObject* [m_length];
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m_hashes = new unsigned int[m_length];
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offset = (m_length - offset) % m_length;
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unsigned int i = 0;
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for (unsigned int n = 0; n < list.length(); n++) {
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ObjList* l = list.getList(n);
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if (!l)
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continue;
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for (l = l->skipNull(); i < m_length; l = l->skipNext()) {
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if (!l)
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break;
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unsigned int idx = ((i++) + offset) % m_length;
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m_objects[idx] = l->get();
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m_hashes[idx] = l->get()->toString().hash();
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}
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}
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while (i < m_length)
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m_objects[((i++) + offset) % m_length] = 0;
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}
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GenObject* ListIterator::get(unsigned int index) const
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{
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if ((index >= m_length) || !m_objects)
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return 0;
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GenObject* obj = m_objects[index];
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if (!obj)
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return 0;
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if (m_objList) {
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if (m_objList->find(obj) && obj->alive())
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return obj;
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}
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else if (m_hashList) {
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if (m_hashList->find(obj,m_hashes[index]) && obj->alive())
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return obj;
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}
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return 0;
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}
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GenObject* ListIterator::get()
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{
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while (m_current < m_length) {
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GenObject* obj = get(m_current++);
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if (obj)
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return obj;
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}
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return 0;
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}
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const NamedString* NamedIterator::get()
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{
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if (!m_item)
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return 0;
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const NamedString* item = static_cast<const NamedString*>(m_item->get());
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m_item = m_item->skipNext();
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return item;
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}
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/* vi: set ts=8 sw=4 sts=4 noet: */
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