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/src/Makefile.am b/src/Makefile.am
index 8e7ef4b..4925eed 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -14,7 +14,7 @@
 
 libosmocore_la_LIBADD = $(BACKTRACE_LIB) $(TALLOC_LIBS)
 libosmocore_la_SOURCES = timer.c timer_gettimeofday.c select.c signal.c msgb.c bits.c \
-			 bitvec.c bitcomp.c statistics.c fsm.c \
+			 bitvec.c bitcomp.c counter.c fsm.c \
 			 write_queue.c utils.c socket.c \
 			 logging.c logging_syslog.c logging_gsmtap.c rate_ctr.c \
 			 gsmtap_util.c crc16.c panic.c backtrace.c \
diff --git a/src/statistics.c b/src/counter.c
similarity index 96%
rename from src/statistics.c
rename to src/counter.c
index fc808f5..6fa87ba 100644
--- a/src/statistics.c
+++ b/src/counter.c
@@ -1,4 +1,4 @@
-/*! \file statistics.c
+/*! \file counter.c
  * utility routines for keeping some statistics. */
 /*
  * (C) 2009 by Harald Welte <laforge@gnumonks.org>
@@ -25,7 +25,7 @@
 
 #include <osmocom/core/linuxlist.h>
 #include <osmocom/core/talloc.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
 
 static LLIST_HEAD(counters);
 
diff --git a/src/ctrl/control_if.c b/src/ctrl/control_if.c
index 47efb25..d50ddd0 100644
--- a/src/ctrl/control_if.c
+++ b/src/ctrl/control_if.c
@@ -50,7 +50,7 @@
 #include <osmocom/core/msgb.h>
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/core/select.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
 #include <osmocom/core/talloc.h>
 #include <osmocom/core/socket.h>
 
diff --git a/src/stats.c b/src/stats.c
index b39ec53..d9df232 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -46,7 +46,7 @@
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/core/stat_item.h>
 #include <osmocom/core/timer.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
 #include <osmocom/core/msgb.h>
 
 #define STATS_DEFAULT_INTERVAL 5 /* secs */
diff --git a/src/vty/stats_vty.c b/src/vty/stats_vty.c
index a4c73fa..95f04bc 100644
--- a/src/vty/stats_vty.c
+++ b/src/vty/stats_vty.c
@@ -35,7 +35,7 @@
 #include <osmocom/vty/misc.h>
 
 #include <osmocom/core/stats.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
 #include <osmocom/core/rate_ctr.h>
 
 #define CFG_STATS_STR "Configure stats sub-system\n"
diff --git a/src/vty/utils.c b/src/vty/utils.c
index 9d1bdf9..e7aeb88 100644
--- a/src/vty/utils.c
+++ b/src/vty/utils.c
@@ -33,7 +33,7 @@
 #include <osmocom/core/rate_ctr.h>
 #include <osmocom/core/stat_item.h>
 #include <osmocom/core/utils.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
 
 #include <osmocom/vty/vty.h>