Merge branch 'jerlbeck/wip/stats'

* This adds a new counter type (to measure time or delay)
* A statsd reporting backend. This can be fed into graphite
or similar tools.
* A periodic log backend for performance values

1 files changed, 213 insertions, 0 deletions

diff --git a/tests/stats/stats_test.c b/tests/stats/stats_test.c
new file mode 100644
index 00000000..f8c7dc00
--- /dev/null
+++ b/tests/stats/stats_test.c
@@ -0,0 +1,213 @@
+/* tests for statistics */
+/*
+ * (C) 2015 Sysmocom s.m.f.c. GmbH
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <osmocom/core/logging.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/stat_item.h>
+
+#include <stdio.h>
+
+static void stat_test(void)
+{
+	enum test_items {
+		TEST_A_ITEM,
+		TEST_B_ITEM,
+	};
+
+	static const struct osmo_stat_item_desc item_description[] = {
+		{ "item.a", "The A value", "ma", 4, -1 },
+		{ "item.b", "The B value", "kb", 7, -1 },
+	};
+
+	static const struct osmo_stat_item_group_desc statg_desc = {
+		.group_name_prefix = "test.one",
+		.group_description = "Test number 1",
+		.num_items = ARRAY_SIZE(item_description),
+		.item_desc = item_description,
+	};
+
+	struct osmo_stat_item_group *statg =
+		osmo_stat_item_group_alloc(NULL, &statg_desc, 0);
+
+	struct osmo_stat_item_group *sgrp2;
+	const struct osmo_stat_item *sitem1, *sitem2;
+	int rc;
+	int32_t value;
+	int32_t rd_a = 0;
+	int32_t rd_b = 0;
+	int i;
+
+	OSMO_ASSERT(statg != NULL);
+
+	sgrp2 = osmo_stat_item_get_group_by_name_idx("test.one", 0);
+	OSMO_ASSERT(sgrp2 == statg);
+
+	sgrp2 = osmo_stat_item_get_group_by_name_idx("test.one", 1);
+	OSMO_ASSERT(sgrp2 == NULL);
+
+	sgrp2 = osmo_stat_item_get_group_by_name_idx("test.two", 0);
+	OSMO_ASSERT(sgrp2 == NULL);
+
+	sitem1 = osmo_stat_item_get_by_name(statg, "item.c");
+	OSMO_ASSERT(sitem1 == NULL);
+
+	sitem1 = osmo_stat_item_get_by_name(statg, "item.a");
+	OSMO_ASSERT(sitem1 != NULL);
+	OSMO_ASSERT(sitem1 == statg->items[TEST_A_ITEM]);
+
+	sitem2 = osmo_stat_item_get_by_name(statg, "item.b");
+	OSMO_ASSERT(sitem2 != NULL);
+	OSMO_ASSERT(sitem2 != sitem1);
+	OSMO_ASSERT(sitem2 == statg->items[TEST_B_ITEM]);
+
+	value = osmo_stat_item_get_last(statg->items[TEST_A_ITEM]);
+	OSMO_ASSERT(value == -1);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc == 0);
+
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 1);
+
+	value = osmo_stat_item_get_last(statg->items[TEST_A_ITEM]);
+	OSMO_ASSERT(value == 1);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 1);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc == 0);
+
+	for (i = 2; i <= 32; i++) {
+		osmo_stat_item_set(statg->items[TEST_A_ITEM], i);
+		osmo_stat_item_set(statg->items[TEST_B_ITEM], 1000 + i);
+
+		rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == i);
+
+		rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == 1000 + i);
+	}
+
+	/* Keep 2 in FIFO */
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 33);
+	osmo_stat_item_set(statg->items[TEST_B_ITEM], 1000 + 33);
+
+	for (i = 34; i <= 64; i++) {
+		osmo_stat_item_set(statg->items[TEST_A_ITEM], i);
+		osmo_stat_item_set(statg->items[TEST_B_ITEM], 1000 + i);
+
+		rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == i-1);
+
+		rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == 1000 + i-1);
+	}
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 64);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 1000 + 64);
+
+	/* Overrun FIFOs */
+	for (i = 65; i <= 96; i++) {
+		osmo_stat_item_set(statg->items[TEST_A_ITEM], i);
+		osmo_stat_item_set(statg->items[TEST_B_ITEM], 1000 + i);
+	}
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 93);
+
+	for (i = 94; i <= 96; i++) {
+		rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == i);
+	}
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 1000 + 90);
+
+	for (i = 91; i <= 96; i++) {
+		rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+		OSMO_ASSERT(rc > 0);
+		OSMO_ASSERT(value == 1000 + i);
+	}
+
+	/* Test Discard (single item) */
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 97);
+	rc = osmo_stat_item_discard(statg->items[TEST_A_ITEM], &rd_a);
+	OSMO_ASSERT(rc > 0);
+
+	rc = osmo_stat_item_discard(statg->items[TEST_A_ITEM], &rd_a);
+	OSMO_ASSERT(rc == 0);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc == 0);
+
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 98);
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc > 0);
+	OSMO_ASSERT(value == 98);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc == 0);
+
+	/* Test Discard (all items) */
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 99);
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 100);
+	osmo_stat_item_set(statg->items[TEST_A_ITEM], 101);
+	osmo_stat_item_set(statg->items[TEST_B_ITEM], 99);
+	osmo_stat_item_set(statg->items[TEST_B_ITEM], 100);
+
+	rc = osmo_stat_item_discard_all(&rd_a);
+	rc = osmo_stat_item_discard_all(&rd_b);
+
+	rc = osmo_stat_item_get_next(statg->items[TEST_A_ITEM], &rd_a, &value);
+	OSMO_ASSERT(rc == 0);
+	rc = osmo_stat_item_get_next(statg->items[TEST_B_ITEM], &rd_b, &value);
+	OSMO_ASSERT(rc == 0);
+
+	osmo_stat_item_group_free(statg);
+
+	sgrp2 = osmo_stat_item_get_group_by_name_idx("test.one", 0);
+	OSMO_ASSERT(sgrp2 == NULL);
+}
+
+int main(int argc, char **argv)
+{
+	static const struct log_info log_info = {};
+	log_init(&log_info, NULL);
+
+	osmo_stat_item_init(NULL);
+
+	stat_test();
+	return 0;
+}