hackedteam/core-win32

/* 
*    QList class
*
*    Version: 1.0
*    Author: Quequero
*    Date: 22/Feb/2008
*/
#include <new>
#include <exception>
using namespace std;

#include "QList.h"
#include "QMessengerAgent.h"
#include "QAgent.h"

QList::QList()
{
    list = NULL;
    uListLength = 0;
}

QList::~QList()
{
    Clear();
}

PIM_LIST& QList::operator++() 
{
    if(list != NULL && list->next != NULL){
        list = list->next;
    }

    return list;
}

PIM_LIST& QList::operator++(int) 
{
    if(list != NULL && list->next != NULL){
        list = list->next;
    }

    return list;
}

PIM_LIST& QList::operator--() 
{
    if(list != NULL && list->previous != NULL){
        list = list->previous;
    }

    return list;
}

PIM_LIST& QList::operator--(int) 
{
    if(list != NULL && list->previous != NULL){
        list = list->previous;
    }

    return list;
}

PIM_LIST& QList::operator+=(QAgent *pAgent) 
{
    register UINT i;
    PIM_LIST last, iter;

    for(i = 0, iter = list; i < uListLength; i++, iter = iter->next){
        if(iter->pAgent == pAgent){
            list = iter;
            return list;
        }
    }

    last = new(std::nothrow) IM_LIST;

    if(last == NULL)
        return list;

    memset(last, 0x00, sizeof(IM_LIST));

    if(list != NULL){
        iter = list->next;

        list->next = last;
        last->previous = list;
        last->next = iter;
        last->next->previous = last;
        list = last;
    }else{
        list = last;
        list->next = list;
        list->previous = list;
    }

    list->pAgent = pAgent;

    uListLength++;

    return list;
}

PIM_LIST& QList::operator-=(QAgent *pAgent) 
{
    PIM_LIST prev, next, tmp, iter;
    register UINT i;

    if(uListLength == 0)
        return list;

    prev = list->previous;
    next = list->next;

    if(list == NULL || prev == NULL || next == NULL)
        return list;

    prev->next = list->next;
    next->previous = list->previous;

    tmp = list;
    list = prev->next;

    if(tmp->pAgent == pAgent){
        delete tmp->pAgent;
        tmp->pAgent = NULL;

        delete tmp;
    }else{
        for(i = 0, iter = tmp; i < uListLength; i++, iter = iter->next){
            if(tmp->pAgent == pAgent){
                prev = iter->previous;
                next = iter->next;

                prev->next = iter->next;
                next->previous = iter->previous;

                if(iter->pAgent != NULL)
                    delete iter->pAgent;

                delete iter;
                iter = NULL;

                break;
            }
        }
    }

    uListLength--;
    return list;
}

// Rimuove l'elemento attualmente puntato da list
BOOL QList::Remove()
{
    PIM_LIST prev, next, tmp;

    if(uListLength == 0)
        return FALSE;

    prev = list->previous;
    next = list->next;

    if(list == NULL || prev == NULL || next == NULL)
        return FALSE;

    prev->next = list->next;
    next->previous = list->previous;

    tmp = list;
    list = prev->next;

    if(tmp->pAgent != NULL){
        delete tmp->pAgent;
        tmp->pAgent = NULL;
    }

    delete tmp;

    uListLength--;

    if(!uListLength)
        list = NULL;

    return TRUE;
}

UINT QList::GetQueueLength() 
{
    return uListLength;
}

QAgent* QList::GetAgent() 
{
    return list->pAgent;
}

void QList::Clear() 
{
    while(uListLength)
        Remove();
}