ntopng/include/RecipientQueue.h
2023-04-17 15:10:14 +02:00

145 lines
3.9 KiB
C++

/*
*
* (C) 2014-23 - ntop.org
*
*
* 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 3 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.
*
*/
#ifndef _RECIPIENT_QUEUES_
#define _RECIPIENT_QUEUES_
#include "ntop_includes.h"
class RecipientQueue {
private:
u_int16_t recipient_id;
AlertFifoQueue *queue;
/* Counters for the number of drops occurred when enqueuing */
u_int64_t drops;
/* Counters for the number of enqueues */
u_int64_t uses;
/* Timestamp of the last dequeue, regardless of queue priority */
time_t last_use;
/* Minimum severity for notifications enqueued to this recipient */
AlertLevel minimum_severity;
/* Only enable enqueue/dequeue for notifications falling into these categories
*/
Bitmap128 enabled_categories; /* MUST be large enough to contain
MAX_NUM_SCRIPT_CATEGORIES */
/* Only enable enqueue/dequeue for notifications falling into these entities
*/
Bitmap128 enabled_entities; /* MUST be large enough to contain
ALERT_ENTITY_MAX_NUM_ENTITIES */
/* MUST be large enough to contain MAX_NUM_HOST_POOLS */
Bitmap128 enabled_host_pools;
public:
RecipientQueue(u_int16_t recipient_id);
~RecipientQueue();
/**
* @brief Dequeues a notification from a `recipient_id` queue
*
* @return AlertFifoItem on success, NULL if queue is empty
*/
AlertFifoItem *dequeue();
/**
* @brief Enqueues a notification to a `recipient_id` queue
* @param recipient_id An integer recipient identifier
* @param notification A string containing the notification
*
* @return True if the enqueue succeeded, false otherwise
*/
bool enqueue(const AlertFifoItem* const notification,
AlertEntity alert_entity);
/**
* @brief Sets the minimum severity for notifications to use this recipient
* @param minimum_severity The minimum severity for notifications to use this
* recipient
*
* @return
*/
inline void setMinimumSeverity(AlertLevel _minimum_severity) {
minimum_severity = _minimum_severity;
};
/**
* @brief Sets enabled notification categories to use this recipient
* @param enabled_categories A bitmap of notification categories to use this
* recipient
*
* @return
*/
inline void setEnabledCategories(Bitmap128 _enabled_categories) {
enabled_categories = _enabled_categories;
};
/**
* @brief Sets enabled notification entities to use this recipient
* @param enabled_entities A bitmap of notification entities to use this
* recipient
*
* @return
*/
inline void setEnabledEntities(Bitmap128 _enabled_entities) {
enabled_entities = _enabled_entities;
};
/**
* @brief Sets enabled host pools to use this recipient
* @param enabled_host_pools
*
* @return
*/
inline void setEnabledHostPools(Bitmap128 _enabled_pools) {
enabled_host_pools = _enabled_pools;
};
/**
* @brief Returns queue status (drops and uses)
* @param vm A Lua VM instance
*
* @return
*/
void lua(lua_State* vm);
/**
* @brief Returns true if the recipient has no notifications enqueued
*
* @return A boolean
*/
bool empty();
/**
* @brief Returns queue last use
*
* @return An epoch with the last use, or 0 if never used.
*/
inline time_t get_last_use() const { return last_use; };
};
#endif /* _RECIPIENT_QUEUES_ */