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/*******************************************************************************
* shroudBNC - an object-oriented framework for IRC *
* Copyright (C) 2005-2014 Gunnar Beutner *
* *
* 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. *
*******************************************************************************/
#include "StdAfx.h"
/**
* CFloodControl
*
* Constructs a new flood control object.
*/
CFloodControl::CFloodControl(void) {
m_BytesSent = 0;
m_Enabled = true;
m_Plugged = false;
}
/**
* AttachInputQueue
*
* Attaches a queue to this flood control object.
*
* @param Queue the new queue
* @param Priority the priority of the queue (the highest priority is 0)
*/
void CFloodControl::AttachInputQueue(CQueue *Queue, int Priority) {
irc_queue_t IrcQueue;
IrcQueue.Queue = Queue;
IrcQueue.Priority = Priority;
m_Queues.Insert(IrcQueue);
}
/**
* DequeueItem
*
* Removes the next item from the queue and returns it.
*
* @param Peek determines whether to actually remove the item
*/
RESULT<char *> CFloodControl::DequeueItem(bool Peek) {
int LowestPriority = 100;
irc_queue_t *ThatQueue = NULL;
if (m_Enabled && m_Plugged) {
RETURN(char *, NULL);
}
for (int i = 0; i < m_Queues.GetLength(); i++) {
if (m_Queues[i].Priority < LowestPriority && m_Queues[i].Queue->GetLength() > 0) {
LowestPriority = m_Queues[i].Priority;
ThatQueue = &m_Queues[i];
}
}
if (ThatQueue == NULL) {
RETURN(char *, NULL);
}
RESULT<const char *> PeekItem = ThatQueue->Queue->PeekItem();
if (IsError(PeekItem)) {
g_Bouncer->Log("PeekItem() failed.");
THROWRESULT(char *, PeekItem);
}
if (Peek) {
RETURN(char *, const_cast<char *>((const char *)PeekItem));
}
if (m_Enabled && m_BytesSent > 0 && m_BytesSent + strlen(PeekItem) + 2 + strlen(FLOODMSG) + 2 > FLOODBYTES) {
Plug();
RETURN(char *, strdup(FLOODMSG));
}
RESULT<char *> Item = ThatQueue->Queue->DequeueItem();
THROWIFERROR(char *, Item);
m_BytesSent += strlen(Item) + 2;
RETURN(char *, Item);
}
/**
* GetQueueSize
*
* Returns 1 if there is at least one item in the queue, which
* could be immediately retrieved using DequeueItem().
*/
int CFloodControl::GetQueueSize(void) {
if (m_Plugged)
return 0;
else
return (GetRealLength() > 0);
}
/**
* GetRealLength
*
* Returns the actual size of the queues.
*/
int CFloodControl::GetRealLength(void) const {
int Count = 0;
for (int i = 0; i < m_Queues.GetLength(); i++) {
Count += m_Queues[i].Queue->GetLength();
}
return Count;
}
/**
* Clear
*
* Clears all queues which have been attached to the flood control object.
*/
void CFloodControl::Clear(void) {
for (int i = 0; i < m_Queues.GetLength(); i++) {
m_Queues[i].Queue->Clear();
}
}
/**
* Plug
*
* Plugs the queue (i.e. stops processing items).
*/
void CFloodControl::Plug(void) {
m_Plugged = true;
}
/**
* Unplug
*
* Unplugs the queue (i.e. enables processing items).
*/
void CFloodControl::Unplug(void) {
m_BytesSent = 0;
m_Plugged = false;
}
/**
* Enable
*
* Enabled the flood control object.
*/
void CFloodControl::Enable(void) {
m_Enabled = true;
}
/**
* Disable
*
* Disabled the flood control object.
*/
void CFloodControl::Disable(void) {
m_Enabled = false;
}
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