Rename 'statistics.c' to 'counter.c'
With stat_item, stats.c and stats_statsd.c, it is becoming a bit
difficult to understand file naming. Also, the 'statistics.c' file
actually only contained osmo_counter handling, so let's rename it to
counter.c altogether.
Change-Id: I2cfb2310543902b7da46cb15a76e2da317eaed7d
diff --git a/include/osmocom/core/statistics.h b/include/osmocom/core/statistics.h
index 5ebb5fc..e7da72a 100644
--- a/include/osmocom/core/statistics.h
+++ b/include/osmocom/core/statistics.h
@@ -1,60 +1,2 @@
-#pragma once
-
-/*! \file statistics.h
- * Common routines regarding statistics */
-
-/*! 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 counter */
-static inline void osmo_counter_dec(struct osmo_counter *ctr)
-{
- ctr->value--;
-}
-
-/*! Increment counter */
-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;
-}
-
-/*! Allocate a new counter */
-struct osmo_counter *osmo_counter_alloc(const char *name);
-
-/*! Free the specified counter
- * \param[in] ctr Counter
- */
-void osmo_counter_free(struct osmo_counter *ctr);
-
-/*! Iterate over all counters
- * \param[in] handle_counter Call-back function, aborts if rc < 0
- * \param[in] data Private dtata handed through to \a handle_counter
- */
-int osmo_counters_for_each(int (*handle_counter)(struct osmo_counter *, void *), void *data);
-
-/*! Resolve counter by human-readable name
- * \param[in] name human-readable name of counter
- * \returns pointer to counter (\ref osmo_counter) or NULL otherwise
- */
-struct osmo_counter *osmo_counter_get_by_name(const char *name);
-
-/*! Return the counter difference since the last call to this function */
-int osmo_counter_difference(struct osmo_counter *ctr);
+/* wrapper for legacy code, when counter.h was called statistics.h */
+#include <osmocom/core/counter.h>