1/*
2 * skew_monitor.h
3 *
4 * Copyright (C) 2008-2016 Aerospike, Inc.
5 *
6 * Portions may be licensed to Aerospike, Inc. under one or more contributor
7 * license agreements.
8 *
9 * This program is free software: you can redistribute it and/or modify it under
10 * the terms of the GNU Affero General Public License as published by the Free
11 * Software Foundation, either version 3 of the License, or (at your option) any
12 * later version.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
17 * details.
18 *
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see http://www.gnu.org/licenses/
21 */
22
23#pragma once
24
25#include <stdbool.h>
26#include <stdint.h>
27
28#include "citrusleaf/cf_vector.h"
29
30#include "dynbuf.h"
31
32/**
33 * Initialize skew monitor.
34 */
35void
36as_skew_monitor_init();
37
38/**
39 * Return the current estimate of the clock skew in the cluster.
40 */
41uint64_t
42as_skew_monitor_skew();
43
44/**
45 * Return the currently estimated outliers from our cluster.
46 * Outliers should have space to hold at least AS_CLUSTER_SZ nodes.
47 */
48uint32_t
49as_skew_monitor_outliers(cf_vector* outliers);
50
51/**
52 * Print skew outliers to a dynamic buffer.
53 */
54uint32_t
55as_skew_monitor_outliers_append(cf_dyn_buf* db);
56
57/**
58 * Print skew monitor info to a dynamic buffer.
59 */
60void
61as_skew_monitor_info(cf_dyn_buf* db);
62
63/**
64 * Dump some debugging information to the logs.
65 */
66void
67as_skew_monitor_dump();
68