From 26a9539e18295dcd84597cacbd736652075426e2 Mon Sep 17 00:00:00 2001
From: Daniel Willmann <dwillmann@sysmocom.de>
Date: Tue, 14 Jul 2020 18:04:18 +0200
Subject: [PATCH] rate_ctr: Add functions to reset rate counter (groups)

Change-Id: If2f806d044cd0fb6929dac44ef8f8a15941ffe9b
Related: SYS#4877
---
 TODO-RELEASE                    |  1 +
 include/osmocom/core/rate_ctr.h |  3 +++
 src/rate_ctr.c                  | 21 +++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/TODO-RELEASE b/TODO-RELEASE
index e2fd8306c..369668193 100644
--- a/TODO-RELEASE
+++ b/TODO-RELEASE
@@ -15,3 +15,4 @@ gb		API/ABI change		deprecate gprs_nsvc_crate(); export gprs_nsvc_create2()
 gsm		API/ABI change		add new member to lapd_datalink
 gsm		new API			new gsm0808_create_common_id()
 gb		new API			new bssgp_tx_bvc_reset2()
+core		new API			new rate_ctr_reset(), rate_ctr_group_reset()
diff --git a/include/osmocom/core/rate_ctr.h b/include/osmocom/core/rate_ctr.h
index f7e6e225b..1669ce498 100644
--- a/include/osmocom/core/rate_ctr.h
+++ b/include/osmocom/core/rate_ctr.h
@@ -116,4 +116,7 @@ int rate_ctr_for_each_counter(struct rate_ctr_group *ctrg,
 
 int rate_ctr_for_each_group(rate_ctr_group_handler_t handle_group, void *data);
 
+void rate_ctr_reset(struct rate_ctr *ctr);
+void rate_ctr_group_reset(struct rate_ctr_group *ctrg);
+
 /*! @} */
diff --git a/src/rate_ctr.c b/src/rate_ctr.c
index 026670bd3..9043a2c6f 100644
--- a/src/rate_ctr.c
+++ b/src/rate_ctr.c
@@ -426,4 +426,25 @@ int rate_ctr_for_each_group(rate_ctr_group_handler_t handle_group, void *data)
 	return rc;
 }
 
+/*! Reset a rate counter back to zero
+ *  \param[in] ctr counter to reset
+ */
+void rate_ctr_reset(struct rate_ctr *ctr)
+{
+        memset(ctr, 0, sizeof(*ctr));
+}
+
+/*! Reset all counters in a group
+ *  \param[in] ctrg counter group to reset
+ */
+void rate_ctr_group_reset(struct rate_ctr_group *ctrg)
+{
+	int i;
+
+	for (i = 0; i < ctrg->desc->num_ctr; i++) {
+		struct rate_ctr *ctr = &ctrg->ctr[i];
+                rate_ctr_reset(ctr);
+	}
+}
+
 /*! @} */