mirror of https://gerrit.osmocom.org/libosmocore
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
#pragma once
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/*! \file counter.h
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* Common routines regarding counter handling */
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/*! structure representing a single counter */
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struct osmo_counter {
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struct llist_head list; /*!< internal list head */
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const char *name; /*!< human-readable name */
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const char *description; /*!< humn-readable description */
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unsigned long value; /*!< current value */
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unsigned long previous; /*!< previous value */
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};
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/*! Decrement counter */
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static inline void osmo_counter_dec(struct osmo_counter *ctr)
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{
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ctr->value--;
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}
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/*! Increment counter */
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static inline void osmo_counter_inc(struct osmo_counter *ctr)
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{
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ctr->value++;
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}
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/*! Get current value of counter */
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static inline unsigned long osmo_counter_get(struct osmo_counter *ctr)
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{
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return ctr->value;
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}
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/*! Reset current value of counter to 0 */
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static inline void osmo_counter_reset(struct osmo_counter *ctr)
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{
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ctr->value = 0;
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}
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/*! Allocate a new counter */
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struct osmo_counter *osmo_counter_alloc(const char *name);
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/*! Free the specified counter
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* \param[in] ctr Counter
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*/
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void osmo_counter_free(struct osmo_counter *ctr);
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/*! Iterate over all counters
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* \param[in] handle_counter Call-back function, aborts if rc < 0
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* \param[in] data Private dtata handed through to \a handle_counter
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*/
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int osmo_counters_for_each(int (*handle_counter)(struct osmo_counter *, void *), void *data);
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/*! Resolve counter by human-readable name
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* \param[in] name human-readable name of counter
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* \returns pointer to counter (\ref osmo_counter) or NULL otherwise
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*/
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struct osmo_counter *osmo_counter_get_by_name(const char *name);
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/*! Return the counter difference since the last call to this function */
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int osmo_counter_difference(struct osmo_counter *ctr);
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