eroomiplist.cpp

network library that can be use all network application!

#include "EroomIpList.h"



CEroomIpList::CEroomIpList()
{
	mp_Head = NULL;
	InitializeCriticalSection(&m_CSection);
}

CEroomIpList::~CEroomIpList()
{
	Clear();
	DeleteCriticalSection(&m_CSection);
}

EROOMIPLIST *CEroomIpList::Head()
{
	return(mp_Head);
}

EROOMIPLIST *CEroomIpList::Insert(char *ap_Ip, int a_Port, int a_Status)
{
	EROOMIPLIST *wp_Item;

	wp_Item = new EROOMIPLIST;
	memset(wp_Item, 0, sizeof(EROOMIPLIST));
	wp_Item->m_Ip = inet_addr(ap_Ip); 
	wp_Item->m_Port = htons(a_Port);
	wp_Item->m_Status = a_Status;

	return(Insert(wp_Item));
}


EROOMIPLIST *CEroomIpList::Insert(EROOMIPLIST *ap_Item)
{
	EROOMIPLIST *wp_Item;

	EnterCriticalSection(&m_CSection);

	ap_Item->mp_Next = NULL;
	ap_Item->mp_Prev = NULL;

	if(!mp_Head) {
		mp_Head = ap_Item;
		mp_Head->mp_Next = NULL;
		mp_Head->mp_Prev = NULL;
	} else if(ap_Item->m_Ip < mp_Head->m_Ip) {
		mp_Head->mp_Prev = ap_Item;
		ap_Item->mp_Next = mp_Head;
		ap_Item->mp_Prev = NULL;
		mp_Head = ap_Item;
	} else {
		wp_Item = mp_Head;
		while(wp_Item->mp_Next) {
			if(ap_Item->m_Ip < wp_Item->m_Ip) {
				break;
			} 
			wp_Item = wp_Item->mp_Next;
		}
		if(ap_Item->m_Ip == wp_Item->m_Ip) {		// 悼老茄巴篮 倾侩 救窃 
			if(ap_Item->m_Port == wp_Item->m_Port) {
				delete ap_Item;
				LeaveCriticalSection(&m_CSection);
				return(NULL);
			}
		}

		if(wp_Item->mp_Next) {
			wp_Item->mp_Next->mp_Prev = ap_Item;
		}
		ap_Item->mp_Next = wp_Item->mp_Next;
		wp_Item->mp_Next = ap_Item;
		ap_Item->mp_Prev = wp_Item;
	}
	LeaveCriticalSection(&m_CSection);

	return(ap_Item);
}


int CEroomIpList::Delete(char *ap_Ip, int a_Port)
{
	EROOMIPLIST *wp_Item;

	wp_Item = Find(ap_Ip, a_Port);

	if(wp_Item) {
		return(Delete(wp_Item));
	}
	return(-1);
}


int CEroomIpList::Delete(EROOMIPLIST *ap_Item)
{
	if(!ap_Item) {
		return(-1);
	}
	EnterCriticalSection(&m_CSection);

	if(ap_Item->mp_Prev) {
		ap_Item->mp_Prev->mp_Next = ap_Item->mp_Next;
	}
	if(ap_Item->mp_Next) {
		ap_Item->mp_Next->mp_Prev = ap_Item->mp_Prev;
	}
	if(ap_Item == mp_Head) {
		mp_Head = ap_Item->mp_Next;
	}

	ap_Item->mp_Prev = NULL;
	ap_Item->mp_Next = NULL;

	delete ap_Item;
	LeaveCriticalSection(&m_CSection);

	return(1);
}


int CEroomIpList::Clear()
{
	EROOMIPLIST *wp_Item;
	EROOMIPLIST *wp_DelItem;
	
	EnterCriticalSection(&m_CSection);
	wp_Item = Head();
	while(wp_Item) {
		wp_DelItem = wp_Item;
		wp_Item = wp_Item->mp_Next;

		wp_DelItem->mp_Next = NULL;
		wp_DelItem->mp_Prev = NULL;

		delete wp_DelItem;

	}
	mp_Head = NULL;
	LeaveCriticalSection(&m_CSection);
	return(1);

}

EROOMIPLIST *CEroomIpList::Find(char *ap_Ip, int a_Port)
{
	EROOMIPLIST			*wp_Item;
	unsigned long		w_Ip;
	unsigned short		w_Port;

	w_Ip = inet_addr(ap_Ip);
	w_Port = htons(a_Port);

	wp_Item = Head();
	while(wp_Item) {

		if(wp_Item->m_Ip == w_Ip && wp_Item->m_Port == a_Port) {
			return(wp_Item);
		}
		wp_Item = wp_Item->mp_Next;
	}
	return(NULL);
}

void CEroomIpList::SetStatus(char *ap_Ip, int a_Port, int a_Status)
{
	EROOMIPLIST			*wp_Item;

	wp_Item = Find(ap_Ip, a_Port);
	if(wp_Item) {
		wp_Item->m_Status = a_Status;
	}
}

void CEroomIpList::AddStatus(char *ap_Ip, int a_Port, int a_Status)
{
	EROOMIPLIST			*wp_Item;

	wp_Item = Find(ap_Ip, a_Port);
	if(wp_Item) {
		wp_Item->m_Status |= a_Status;
	}
}

void CEroomIpList::DelStatus(char *ap_Ip, int a_Port, int a_Status)
{
	EROOMIPLIST			*wp_Item;

	wp_Item = Find(ap_Ip, a_Port);
	if(wp_Item) {
		wp_Item->m_Status &= ~a_Status;
	}
}

int CEroomIpList::GetStatus(char *ap_Ip, int a_Port)
{
	EROOMIPLIST			*wp_Item;

	wp_Item = Find(ap_Ip, a_Port);
	if(wp_Item) {
		return(wp_Item->m_Status);
	}
	return(-1);
}