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/* Copyright (c) 2005 PrimeBase Technologies GmbH
*
* PrimeBase XT
*
* 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* 2006-05-16 Paul McCullagh
*
* H&G2JCtL
*
* C++ Utilities
*/
#ifndef __ccutils_xt_h__
#define __ccutils_xt_h__
#include <errno.h>
#include "xt_defs.h"
#include "thread_xt.h"
class XTObject
{
private:
u_int o_refcnt;
public:
inline XTObject() { o_refcnt = 1; }
virtual ~XTObject() { }
inline void reference() {
o_refcnt++;
}
inline void release(XTThreadPtr self) {
ASSERT(o_refcnt > 0);
o_refcnt--;
if (o_refcnt == 0) {
finalize(self);
delete this;
}
}
virtual XTObject *factory(XTThreadPtr self) {
XTObject *new_obj;
if (!(new_obj = new XTObject()))
xt_throw_errno(XT_CONTEXT, XT_ENOMEM);
return new_obj;
}
virtual XTObject *clone(XTThreadPtr self) {
XTObject *new_obj;
new_obj = factory(self);
new_obj->init(self, this);
return new_obj;
}
virtual void init(XTThreadPtr self) { (void) self; }
virtual void init(XTThreadPtr self, XTObject *obj) { (void) obj; init(self); }
virtual void finalize(XTThreadPtr self) { (void) self; }
virtual int compare(const void *key) { (void) key; return -1; }
};
class XTListImp
{
protected:
bool li_referenced;
u_int li_item_count;
XTObject **li_items;
public:
inline XTListImp() : li_referenced(true), li_item_count(0), li_items(NULL) { }
inline void setNonReferenced() { li_referenced = false; }
void append(XTThreadPtr self, XTObject *info) {
if (!xt_realloc(NULL, (void **) &li_items, (li_item_count + 1) * sizeof(void *))) {
if (li_referenced)
info->release(self);
xt_throw_errno(XT_CONTEXT, XT_ENOMEM);
return;
}
li_items[li_item_count] = info;
li_item_count++;
}
void insert(XTThreadPtr self, XTObject *info, u_int i) {
if (!xt_realloc(NULL, (void **) &li_items, (li_item_count + 1) * sizeof(void *))) {
if (li_referenced)
info->release(self);
xt_throw_errno(XT_CONTEXT, XT_ENOMEM);
return;
}
memmove(&li_items[i+1], &li_items[i], (li_item_count-i) * sizeof(XTObject *));
li_items[i] = info;
li_item_count++;
}
void addToFront(XTThreadPtr self, XTObject *info) {
insert(self, info, 0);
}
/* Will sort! */
void append(XTThreadPtr self, XTObject *info, void *key);
inline bool remove(XTObject *info) {
for (u_int i=0; i<li_item_count; i++) {
if (li_items[i] == info) {
li_item_count--;
memmove(&li_items[i], &li_items[i+1], (li_item_count - i) * sizeof(XTObject *));
return true;
}
}
return false;
}
inline bool remove(XTThreadPtr self, u_int i) {
XTObject *item;
if (i >= li_item_count)
return false;
item = li_items[i];
li_item_count--;
memmove(&li_items[i], &li_items[i+1], (li_item_count - i) * sizeof(void *));
if (li_referenced)
item->release(self);
return true;
}
inline XTObject *take(u_int i) {
XTObject *item;
if (i >= li_item_count)
return NULL;
item = li_items[i];
li_item_count--;
memmove(&li_items[i], &li_items[i+1], (li_item_count - i) * sizeof(void *));
return item;
}
inline u_int size() const { return li_item_count; }
inline void setEmpty(XTThreadPtr self) {
if (li_items)
xt_free(self, li_items);
li_item_count = 0;
li_items = NULL;
}
inline bool isEmpty() { return li_item_count == 0; }
inline XTObject *itemAt(u_int i) const {
if (i >= li_item_count)
return NULL;
return li_items[i];
}
};
template <class T> class XTList : public XTListImp
{
public:
inline XTList() : XTListImp() { }
inline void append(XTThreadPtr self, T *a) { XTListImp::append(self, a); }
inline void insert(XTThreadPtr self, T *a, u_int i) { XTListImp::insert(self, a, i); }
inline void addToFront(XTThreadPtr self, T *a) { XTListImp::addToFront(self, a); }
inline bool remove(T *a) { return XTListImp::remove(a); }
inline bool remove(XTThreadPtr self, u_int i) { return XTListImp::remove(self, i); }
inline T *take(u_int i) { return (T *) XTListImp::take(i); }
inline T *itemAt(u_int i) const { return (T *) XTListImp::itemAt(i); }
inline u_int indexOf(T *a) {
u_int i;
for (i=0; i<size(); i++) {
if (itemAt(i) == a)
break;
}
return i;
}
void deleteAll(XTThreadPtr self)
{
for (u_int i=0; i<size(); i++) {
if (li_referenced)
itemAt(i)->release(self);
}
setEmpty(self);
}
void clone(XTThreadPtr self, XTListImp *list)
{
deleteAll(self);
for (u_int i=0; i<list->size(); i++) {
XTListImp::append(self, list->itemAt(i)->clone(self));
}
}
};
#endif
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