www.pudn.com > IPMessengerversion2.04.rar > TLIST.CPP

static char *tlist_id =  
	"@(#)Copyright (C) H.Shirouzu 1996-2001   tlist.cpp	Ver0.95"; 
/* ======================================================================== 
	Project  Name			: Win32 Lightweight  Class Library Test 
	Module Name				: List Class 
	Create					: 1996-06-01(Sat) 
	Update					: 2001-12-06(Thu) 
	Copyright				: H.Shirouzu 
	Reference				:  
	======================================================================== */ 
 
#include "tlib.h" 
 
/* 
	TList class 
*/ 
TList::TList(void) 
{ 
	top.prior = top.next = ⊤ 
} 
 
void TList::AddObj(TListObj * obj) 
{ 
	obj->prior = top.prior; 
	top.prior->next = obj; 
	obj->next = ⊤ 
	top.prior = obj; 
} 
 
void TList::DelObj(TListObj * obj) 
{ 
	if (obj->next) 
		obj->next->prior = obj->prior; 
	if (obj->prior) 
		obj->prior->next = obj->next; 
	obj->next = obj->prior = NULL; 
} 
 
TListObj* TList::TopObj(void) 
{ 
	return	top.next == &top ? NULL : top.next; 
} 
 
TListObj* TList::NextObj(TListObj *obj) 
{ 
	return	obj->next == &top ? NULL : obj->next; 
} 
 
 
/* 
	TRecycleList class 
*/ 
TRecycleList::TRecycleList(int init_cnt, int size) 
{ 
	data = new char [init_cnt * size]; 
	memset(data, 0, init_cnt * size); 
 
	for (int cnt=0; cnt < init_cnt; cnt++) { 
		TListObj *obj = (TListObj *)(data + cnt * size); 
		list[FREE_LIST].AddObj(obj); 
	} 
} 
 
TRecycleList::~TRecycleList() 
{ 
	delete [] data; 
} 
 
TListObj *TRecycleList::GetObj(int list_type) 
{ 
	TListObj	*obj = list[list_type].TopObj(); 
 
	if (obj) 
		list[list_type].DelObj(obj); 
 
	return	obj; 
} 
 
void TRecycleList::PutObj(int list_type, TListObj *obj) 
{ 
	list[list_type].AddObj(obj); 
}