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/*
* This file is part of the PCEPlib, a PCEP protocol library.
*
* Copyright (C) 2020 Volta Networks https://voltanet.io/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Author : Brady Johnson <brady@voltanet.io>
*
*/
/*
* Definitions of PCEP Counters.
*/
#ifndef PCEP_UTILS_INCLUDE_PCEP_UTILS_COUNTERS_H_
#define PCEP_UTILS_INCLUDE_PCEP_UTILS_COUNTERS_H_
#include <stdbool.h>
#include <stdint.h>
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Example Counter group with sub-groups and counters
*
* pcep_counters {
* counters_group_rx {
* message_open;
* message_keepalive;
* message_pcreq;
* }
* counters_group_tx {
* message_open;
* message_keepalive;
* message_pcreq;
* }
* counters_group_events {
* pcc_connect;
* pce_connect;
* pcc_disconnect;
* pce_disconnect;
* }
* }
*
* To create the above structure of groups, sub-groups, and counters, do the
* following:
*
* struct counters_subgroup *rx_subgroup = create_counters_subgroup("rx
* counters", 3); struct counters_subgroup *tx_subgroup =
* create_counters_subgroup("tx counters", 3); struct counters_subgroup
* *events_subgroup = create_counters_subgroup("events counters", 4);
*
* Use message_id: PCEP_TYPE_OPEN=1
* create_subgroup_counter(rx_subgroup, 1, "Message Open");
* create_subgroup_counter(rx_subgroup, 2, "Message KeepAlive");
* create_subgroup_counter(rx_subgroup, 3, "Message PcReq");
*
* create_subgroup_counter(tx_subgroup, 1, "Message Open");
* create_subgroup_counter(tx_subgroup, 2, "Message KeepAlive");
* create_subgroup_counter(tx_subgroup, 3, "Message PcReq");
*
* create_subgroup_counter(events_subgroup, 1, "PCC Connect");
* create_subgroup_counter(events_subgroup, 2, "PCE Connect");
* create_subgroup_counter(events_subgroup, 3, "PCC Disconnect");
* create_subgroup_counter(events_subgroup, 4, "PCE Disconnect");
*
* struct counters_group *cntrs_group = create_counters_group("PCEP Counters",
* 3); add_counters_subgroup(cntrs_group, rx_subgroup);
* add_counters_subgroup(cntrs_group, tx_subgroup);
* add_counters_subgroup(cntrs_group, events_subgroup);
*/
#define MAX_COUNTER_STR_LENGTH 128
#define MAX_COUNTER_GROUPS 500
#define MAX_COUNTERS 500
struct counter {
uint16_t counter_id;
char counter_name[MAX_COUNTER_STR_LENGTH];
uint32_t counter_value;
};
struct counters_subgroup {
char counters_subgroup_name[MAX_COUNTER_STR_LENGTH];
uint16_t subgroup_id;
uint16_t num_counters;
uint16_t max_counters;
/* Array of (struct counter *) allocated when the subgroup is created.
* The array is indexed by the struct counter->counter_id */
struct counter **counters;
};
struct counters_group {
char counters_group_name[MAX_COUNTER_STR_LENGTH];
uint16_t num_subgroups;
uint16_t max_subgroups;
time_t start_time;
/* Array of (struct counters_subgroup *) allocated when the group is
* created. The subgroup is indexed by the (struct counters_subgroup
* *)->subgroup_id */
struct counters_subgroup **subgroups;
};
/*
* Create a counters group with the given group_name and number of subgroups.
* Subgroup_ids are 0-based, so take that into account when setting
* max_subgroups. Return true on success or false if group_name is NULL or
* max_subgroups >= MAX_COUNTER_GROUPS.
*/
struct counters_group *create_counters_group(const char *group_name,
uint16_t max_subgroups);
/*
* Create a counters subgroup with the given subgroup_name, subgroup_id and
* number of counters. The subgroup_id is 0-based. counter_ids are 0-based, so
* take that into account when setting max_counters. Return true on success or
* false if subgroup_name is NULL, subgroup_id >= MAX_COUNTER_GROUPS, or
* max_counters >= MAX_COUNTERS.
*/
struct counters_subgroup *create_counters_subgroup(const char *subgroup_name,
uint16_t subgroup_id,
uint16_t max_counters);
/*
* Add a counter_subgroup to a counter_group.
* Return true on success or false if group is NULL or if subgroup is NULL.
*/
bool add_counters_subgroup(struct counters_group *group,
struct counters_subgroup *subgroup);
/*
* Clone a subgroup and set a new name and subgroup_id for the new subgroup.
* This is useful for RX and TX counters: just create the RX counters and clone
* it for the TX counters.
*/
struct counters_subgroup *
clone_counters_subgroup(struct counters_subgroup *subgroup,
const char *subgroup_name, uint16_t subgroup_id);
/*
* Create a counter in a subgroup with the given counter_id and counter_name.
* The counter_id is 0-based.
* Return true on success or false if subgroup is NULL, counter_id >=
* MAX_COUNTERS, or if counter_name is NULL.
*/
bool create_subgroup_counter(struct counters_subgroup *subgroup,
uint32_t counter_id, const char *counter_name);
/*
* Delete the counters_group and recursively delete all subgroups and their
* counters. Return true on success or false if group is NULL.
*/
bool delete_counters_group(struct counters_group *group);
/*
* Delete the counters_subgroup and all its counters counters.
* Return true on success or false if subgroup is NULL.
*/
bool delete_counters_subgroup(struct counters_subgroup *subgroup);
/*
* Reset all the counters in all sub-groups contained in this group.
* Return true on success or false if group is NULL.
*/
bool reset_group_counters(struct counters_group *group);
/*
* Reset all the counters in this subgroup.
* Return true on success or false if subgroup is NULL.
*/
bool reset_subgroup_counters(struct counters_subgroup *subgroup);
/*
* Increment a counter given a counter_group, subgroup_id, and counter_id.
* Return true on success or false if group is NULL, subgroup_id >=
* MAX_COUNTER_GROUPS, or counter_id >= MAX_COUNTERS.
*/
bool increment_counter(struct counters_group *group, uint16_t subgroup_id,
uint16_t counter_id);
/*
* Increment a counter given the counter_subgroup and counter_id.
* Return true on success or false if subgroup is NULL or counter_id >=
* MAX_COUNTERS.
*/
bool increment_subgroup_counter(struct counters_subgroup *subgroup,
uint16_t counter_id);
/*
* Dump the counter_group info and all its counter_subgroups.
* Return true on success or false if group is NULL.
*/
bool dump_counters_group_to_log(struct counters_group *group);
/*
* Dump all the counters in a counter_subgroup.
* Return true on success or false if subgroup is NULL.
*/
bool dump_counters_subgroup_to_log(struct counters_subgroup *subgroup);
/*
* Search for a counters_subgroup by subgroup_id in a counters_group
* and return it, if found, else return NULL.
*/
struct counters_subgroup *find_subgroup(const struct counters_group *group,
uint16_t subgroup_id);
/*
* Given a counters_subgroup, return the sum of all the counters.
*/
uint32_t subgroup_counters_total(struct counters_subgroup *subgroup);
#ifdef __cplusplus
}
#endif
#endif /* PCEP_UTILS_INCLUDE_PCEP_UTILS_COUNTERS_H_ */
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