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#pragma once
/*! \file counter.h
* Common routines regarding counter handling */
/*! Structure representing a single counter */
struct osmo_counter {
struct llist_head list; /*!< internal list head */
const char *name; /*!< human-readable name */
const char *description; /*!< humn-readable description */
unsigned long value; /*!< current value */
unsigned long previous; /*!< previous value */
};
/*! Decrement given counter by one
* \param[in] ctr Counter that's to be decremented */
static inline void osmo_counter_dec(struct osmo_counter *ctr)
{
ctr->value--;
}
/*! Increment counter by one.
* \param[in] Counter that's to be incremented */
static inline void osmo_counter_inc(struct osmo_counter *ctr)
{
ctr->value++;
}
/*! Get current value of counter */
static inline unsigned long osmo_counter_get(struct osmo_counter *ctr)
{
return ctr->value;
}
/*! Reset current value of counter to 0 */
static inline void osmo_counter_reset(struct osmo_counter *ctr)
{
ctr->value = 0;
}
struct osmo_counter *osmo_counter_alloc(const char *name);
void osmo_counter_free(struct osmo_counter *ctr);
int osmo_counters_for_each(int (*handle_counter)(struct osmo_counter *, void *), void *data);
int osmo_counters_count();
struct osmo_counter *osmo_counter_get_by_name(const char *name);
int osmo_counter_difference(struct osmo_counter *ctr);
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