mirror of https://gerrit.osmocom.org/libosmocore
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
#pragma once
|
|
|
|
/*! \defgroup rate_ctr Rate counters
|
|
* @{
|
|
*/
|
|
|
|
/*! \file rate_ctr.h */
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <osmocom/core/linuxlist.h>
|
|
|
|
/*! \brief Number of rate counter intervals */
|
|
#define RATE_CTR_INTV_NUM 4
|
|
|
|
/*! \brief Rate counter interval */
|
|
enum rate_ctr_intv {
|
|
RATE_CTR_INTV_SEC, /*!< \brief last second */
|
|
RATE_CTR_INTV_MIN, /*!< \brief last minute */
|
|
RATE_CTR_INTV_HOUR, /*!< \brief last hour */
|
|
RATE_CTR_INTV_DAY, /*!< \brief last day */
|
|
};
|
|
|
|
/*! \brief data we keep for each of the intervals */
|
|
struct rate_ctr_per_intv {
|
|
uint64_t last; /*!< \brief counter value in last interval */
|
|
uint64_t rate; /*!< \brief counter rate */
|
|
};
|
|
|
|
/*! \brief data we keep for each actual value */
|
|
struct rate_ctr {
|
|
uint64_t current; /*!< \brief current value */
|
|
uint64_t previous; /*!< \brief previous value, used for delta */
|
|
/*! \brief per-interval data */
|
|
struct rate_ctr_per_intv intv[RATE_CTR_INTV_NUM];
|
|
};
|
|
|
|
/*! \brief rate counter description */
|
|
struct rate_ctr_desc {
|
|
const char *name; /*!< \brief name of the counter */
|
|
const char *description;/*!< \brief description of the counter */
|
|
};
|
|
|
|
/*! \brief description of a rate counter group */
|
|
struct rate_ctr_group_desc {
|
|
/*! \brief The prefix to the name of all counters in this group */
|
|
const char *group_name_prefix;
|
|
/*! \brief The human-readable description of the group */
|
|
const char *group_description;
|
|
/*! \brief The class to which this group belongs */
|
|
int class_id;
|
|
/*! \brief The number of counters in this group */
|
|
const unsigned int num_ctr;
|
|
/*! \brief Pointer to array of counter names */
|
|
const struct rate_ctr_desc *ctr_desc;
|
|
};
|
|
|
|
/*! \brief One instance of a counter group class */
|
|
struct rate_ctr_group {
|
|
/*! \brief Linked list of all counter groups in the system */
|
|
struct llist_head list;
|
|
/*! \brief Pointer to the counter group class */
|
|
const struct rate_ctr_group_desc *desc;
|
|
/*! \brief The index of this ctr_group within its class */
|
|
unsigned int idx;
|
|
/*! \brief Actual counter structures below */
|
|
struct rate_ctr ctr[0];
|
|
};
|
|
|
|
struct rate_ctr_group *rate_ctr_group_alloc(void *ctx,
|
|
const struct rate_ctr_group_desc *desc,
|
|
unsigned int idx);
|
|
|
|
static inline void rate_ctr_group_upd_idx(struct rate_ctr_group *grp, unsigned int idx)
|
|
{
|
|
grp->idx = idx;
|
|
}
|
|
|
|
void rate_ctr_group_free(struct rate_ctr_group *grp);
|
|
|
|
/*! \brief Increment the counter by \a inc
|
|
* \param ctr \ref rate_ctr to increment
|
|
* \param inc quantity to increment \a ctr by */
|
|
void rate_ctr_add(struct rate_ctr *ctr, int inc);
|
|
|
|
/*! \brief Increment the counter by 1
|
|
* \param ctr \ref rate_ctr to increment */
|
|
static inline void rate_ctr_inc(struct rate_ctr *ctr)
|
|
{
|
|
rate_ctr_add(ctr, 1);
|
|
}
|
|
|
|
/*! \brief Return the counter difference since the last call to this function */
|
|
int64_t rate_ctr_difference(struct rate_ctr *ctr);
|
|
|
|
int rate_ctr_init(void *tall_ctx);
|
|
|
|
struct rate_ctr_group *rate_ctr_get_group_by_name_idx(const char *name, const unsigned int idx);
|
|
const struct rate_ctr *rate_ctr_get_by_name(const struct rate_ctr_group *ctrg, const char *name);
|
|
|
|
typedef int (*rate_ctr_handler_t)(
|
|
struct rate_ctr_group *, struct rate_ctr *,
|
|
const struct rate_ctr_desc *, void *);
|
|
typedef int (*rate_ctr_group_handler_t)(struct rate_ctr_group *, void *);
|
|
|
|
|
|
/*! \brief Iterate over all counters
|
|
* \param[in] handle_item Call-back function, aborts if rc < 0
|
|
* \param[in] data Private data handed through to \a handle_counter
|
|
*/
|
|
int rate_ctr_for_each_counter(struct rate_ctr_group *ctrg,
|
|
rate_ctr_handler_t handle_counter, void *data);
|
|
|
|
int rate_ctr_for_each_group(rate_ctr_group_handler_t handle_group, void *data);
|
|
|
|
/*! @} */
|