7ff744d60d
system with 'make WITH_TLS=no WITH_CJSON=no WITH_DOCS=no' Signed-off-by: Rob Swindell <rob@synchro.net>
382 lines
16 KiB
C
382 lines
16 KiB
C
/*
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Copyright (c) 2009-2020 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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https://www.eclipse.org/legal/epl-2.0/
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#ifdef WITH_SYS_TREE
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#include "config.h"
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#include <math.h>
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#include <stdio.h>
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#include <limits.h>
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#include <inttypes.h>
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#include "mosquitto_broker_internal.h"
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#include "memory_mosq.h"
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#include "time_mosq.h"
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#define BUFLEN 100
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#define SYS_TREE_QOS 2
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uint64_t g_bytes_received = 0;
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uint64_t g_bytes_sent = 0;
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uint64_t g_pub_bytes_received = 0;
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uint64_t g_pub_bytes_sent = 0;
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unsigned long g_msgs_received = 0;
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unsigned long g_msgs_sent = 0;
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unsigned long g_pub_msgs_received = 0;
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unsigned long g_pub_msgs_sent = 0;
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unsigned long g_msgs_dropped = 0;
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unsigned int g_clients_expired = 0;
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unsigned int g_socket_connections = 0;
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unsigned int g_connection_count = 0;
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void sys_tree__init(void)
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{
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char buf[64];
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uint32_t len;
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if(db.config->sys_interval == 0){
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return;
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}
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/* Set static $SYS messages */
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len = (uint32_t)snprintf(buf, 64, "mosquitto version %s", VERSION);
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db__messages_easy_queue(NULL, "$SYS/broker/version", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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static void sys_tree__update_clients(char *buf)
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{
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static unsigned int client_count = UINT_MAX;
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static unsigned int clients_expired = UINT_MAX;
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static unsigned int client_max = 0;
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static unsigned int disconnected_count = UINT_MAX;
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static unsigned int connected_count = UINT_MAX;
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uint32_t len;
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unsigned int count_total, count_by_sock;
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count_total = HASH_CNT(hh_id, db.contexts_by_id);
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count_by_sock = HASH_CNT(hh_sock, db.contexts_by_sock);
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if(client_count != count_total){
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client_count = count_total;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", client_count);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/total", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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if(client_count > client_max){
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client_max = client_count;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", client_max);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/maximum", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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}
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if(disconnected_count != count_total-count_by_sock){
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disconnected_count = count_total-count_by_sock;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", disconnected_count);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/inactive", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/disconnected", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(connected_count != count_by_sock){
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connected_count = count_by_sock;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", connected_count);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/active", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/connected", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(g_clients_expired != clients_expired){
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clients_expired = g_clients_expired;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", clients_expired);
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db__messages_easy_queue(NULL, "$SYS/broker/clients/expired", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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}
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#ifdef REAL_WITH_MEMORY_TRACKING
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static void sys_tree__update_memory(char *buf)
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{
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static unsigned long current_heap = ULONG_MAX;
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static unsigned long max_heap = ULONG_MAX;
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unsigned long value_ul;
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uint32_t len;
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value_ul = mosquitto__memory_used();
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if(current_heap != value_ul){
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current_heap = value_ul;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", current_heap);
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db__messages_easy_queue(NULL, "$SYS/broker/heap/current", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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value_ul =mosquitto__max_memory_used();
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if(max_heap != value_ul){
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max_heap = value_ul;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", max_heap);
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db__messages_easy_queue(NULL, "$SYS/broker/heap/maximum", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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}
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#endif
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static void calc_load(char *buf, const char *topic, bool initial, double exponent, double interval, double *current)
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{
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double new_value;
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uint32_t len;
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if (initial) {
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new_value = *current;
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len = (uint32_t)snprintf(buf, BUFLEN, "%.2f", new_value);
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db__messages_easy_queue(NULL, topic, SYS_TREE_QOS, len, buf, 1, 0, NULL);
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} else {
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new_value = interval + exponent*((*current) - interval);
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if(fabs(new_value - (*current)) >= 0.01){
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len = (uint32_t)snprintf(buf, BUFLEN, "%.2f", new_value);
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db__messages_easy_queue(NULL, topic, SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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}
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(*current) = new_value;
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}
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/* Send messages for the $SYS hierarchy if the last update is longer than
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* 'interval' seconds ago.
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* 'interval' is the amount of seconds between updates. If 0, then no periodic
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* messages are sent for the $SYS hierarchy.
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* 'start_time' is the result of time() that the broker was started at.
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*/
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void sys_tree__update(int interval, time_t start_time)
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{
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static time_t last_update = 0;
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time_t uptime;
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char buf[BUFLEN];
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static int msg_store_count = INT_MAX;
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static unsigned long msg_store_bytes = ULONG_MAX;
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static unsigned long msgs_received = ULONG_MAX;
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static unsigned long msgs_sent = ULONG_MAX;
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static unsigned long publish_dropped = ULONG_MAX;
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static unsigned long pub_msgs_received = ULONG_MAX;
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static unsigned long pub_msgs_sent = ULONG_MAX;
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static unsigned long long bytes_received = ULLONG_MAX;
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static unsigned long long bytes_sent = ULLONG_MAX;
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static unsigned long long pub_bytes_received = ULLONG_MAX;
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static unsigned long long pub_bytes_sent = ULLONG_MAX;
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static int subscription_count = INT_MAX;
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static int shared_subscription_count = INT_MAX;
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static int retained_count = INT_MAX;
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static double msgs_received_load1 = 0;
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static double msgs_received_load5 = 0;
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static double msgs_received_load15 = 0;
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static double msgs_sent_load1 = 0;
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static double msgs_sent_load5 = 0;
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static double msgs_sent_load15 = 0;
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static double publish_dropped_load1 = 0;
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static double publish_dropped_load5 = 0;
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static double publish_dropped_load15 = 0;
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double msgs_received_interval, msgs_sent_interval, publish_dropped_interval;
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static double publish_received_load1 = 0;
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static double publish_received_load5 = 0;
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static double publish_received_load15 = 0;
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static double publish_sent_load1 = 0;
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static double publish_sent_load5 = 0;
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static double publish_sent_load15 = 0;
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double publish_received_interval, publish_sent_interval;
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static double bytes_received_load1 = 0;
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static double bytes_received_load5 = 0;
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static double bytes_received_load15 = 0;
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static double bytes_sent_load1 = 0;
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static double bytes_sent_load5 = 0;
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static double bytes_sent_load15 = 0;
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double bytes_received_interval, bytes_sent_interval;
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static double socket_load1 = 0;
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static double socket_load5 = 0;
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static double socket_load15 = 0;
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double socket_interval;
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static double connection_load1 = 0;
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static double connection_load5 = 0;
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static double connection_load15 = 0;
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double connection_interval;
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double exponent;
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double i_mult;
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uint32_t len;
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bool initial_publish;
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if(interval && db.now_s - interval > last_update){
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uptime = db.now_s - start_time;
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len = (uint32_t)snprintf(buf, BUFLEN, "%" PRIu64 " seconds", (uint64_t)uptime);
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db__messages_easy_queue(NULL, "$SYS/broker/uptime", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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sys_tree__update_clients(buf);
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initial_publish = false;
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if(last_update == 0){
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initial_publish = true;
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last_update = 1;
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}
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if(last_update > 0){
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i_mult = 60.0/(double)(db.now_s-last_update);
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msgs_received_interval = (double)(g_msgs_received - msgs_received)*i_mult;
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msgs_sent_interval = (double)(g_msgs_sent - msgs_sent)*i_mult;
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publish_dropped_interval = (double)(g_msgs_dropped - publish_dropped)*i_mult;
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publish_received_interval = (double)(g_pub_msgs_received - pub_msgs_received)*i_mult;
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publish_sent_interval = (double)(g_pub_msgs_sent - pub_msgs_sent)*i_mult;
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bytes_received_interval = (double)(g_bytes_received - bytes_received)*i_mult;
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bytes_sent_interval = (double)(g_bytes_sent - bytes_sent)*i_mult;
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socket_interval = g_socket_connections*i_mult;
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g_socket_connections = 0;
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connection_interval = g_connection_count*i_mult;
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g_connection_count = 0;
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/* 1 minute load */
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exponent = exp(-1.0*(double)(db.now_s-last_update)/60.0);
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calc_load(buf, "$SYS/broker/load/messages/received/1min", initial_publish, exponent, msgs_received_interval, &msgs_received_load1);
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calc_load(buf, "$SYS/broker/load/messages/sent/1min", initial_publish, exponent, msgs_sent_interval, &msgs_sent_load1);
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calc_load(buf, "$SYS/broker/load/publish/dropped/1min", initial_publish, exponent, publish_dropped_interval, &publish_dropped_load1);
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calc_load(buf, "$SYS/broker/load/publish/received/1min", initial_publish, exponent, publish_received_interval, &publish_received_load1);
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calc_load(buf, "$SYS/broker/load/publish/sent/1min", initial_publish, exponent, publish_sent_interval, &publish_sent_load1);
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calc_load(buf, "$SYS/broker/load/bytes/received/1min", initial_publish, exponent, bytes_received_interval, &bytes_received_load1);
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calc_load(buf, "$SYS/broker/load/bytes/sent/1min", initial_publish, exponent, bytes_sent_interval, &bytes_sent_load1);
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calc_load(buf, "$SYS/broker/load/sockets/1min", initial_publish, exponent, socket_interval, &socket_load1);
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calc_load(buf, "$SYS/broker/load/connections/1min", initial_publish, exponent, connection_interval, &connection_load1);
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/* 5 minute load */
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exponent = exp(-1.0*(double)(db.now_s-last_update)/300.0);
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calc_load(buf, "$SYS/broker/load/messages/received/5min", initial_publish, exponent, msgs_received_interval, &msgs_received_load5);
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calc_load(buf, "$SYS/broker/load/messages/sent/5min", initial_publish, exponent, msgs_sent_interval, &msgs_sent_load5);
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calc_load(buf, "$SYS/broker/load/publish/dropped/5min", initial_publish, exponent, publish_dropped_interval, &publish_dropped_load5);
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calc_load(buf, "$SYS/broker/load/publish/received/5min", initial_publish, exponent, publish_received_interval, &publish_received_load5);
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calc_load(buf, "$SYS/broker/load/publish/sent/5min", initial_publish, exponent, publish_sent_interval, &publish_sent_load5);
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calc_load(buf, "$SYS/broker/load/bytes/received/5min", initial_publish, exponent, bytes_received_interval, &bytes_received_load5);
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calc_load(buf, "$SYS/broker/load/bytes/sent/5min", initial_publish, exponent, bytes_sent_interval, &bytes_sent_load5);
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calc_load(buf, "$SYS/broker/load/sockets/5min", initial_publish, exponent, socket_interval, &socket_load5);
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calc_load(buf, "$SYS/broker/load/connections/5min", initial_publish, exponent, connection_interval, &connection_load5);
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/* 15 minute load */
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exponent = exp(-1.0*(double)(db.now_s-last_update)/900.0);
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calc_load(buf, "$SYS/broker/load/messages/received/15min", initial_publish, exponent, msgs_received_interval, &msgs_received_load15);
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calc_load(buf, "$SYS/broker/load/messages/sent/15min", initial_publish, exponent, msgs_sent_interval, &msgs_sent_load15);
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calc_load(buf, "$SYS/broker/load/publish/dropped/15min", initial_publish, exponent, publish_dropped_interval, &publish_dropped_load15);
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calc_load(buf, "$SYS/broker/load/publish/received/15min", initial_publish, exponent, publish_received_interval, &publish_received_load15);
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calc_load(buf, "$SYS/broker/load/publish/sent/15min", initial_publish, exponent, publish_sent_interval, &publish_sent_load15);
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calc_load(buf, "$SYS/broker/load/bytes/received/15min", initial_publish, exponent, bytes_received_interval, &bytes_received_load15);
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calc_load(buf, "$SYS/broker/load/bytes/sent/15min", initial_publish, exponent, bytes_sent_interval, &bytes_sent_load15);
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calc_load(buf, "$SYS/broker/load/sockets/15min", initial_publish, exponent, socket_interval, &socket_load15);
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calc_load(buf, "$SYS/broker/load/connections/15min", initial_publish, exponent, connection_interval, &connection_load15);
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}
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if(db.msg_store_count != msg_store_count){
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msg_store_count = db.msg_store_count;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", msg_store_count);
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db__messages_easy_queue(NULL, "$SYS/broker/messages/stored", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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db__messages_easy_queue(NULL, "$SYS/broker/store/messages/count", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if (db.msg_store_bytes != msg_store_bytes){
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msg_store_bytes = db.msg_store_bytes;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", msg_store_bytes);
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db__messages_easy_queue(NULL, "$SYS/broker/store/messages/bytes", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(db.subscription_count != subscription_count){
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subscription_count = db.subscription_count;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", subscription_count);
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db__messages_easy_queue(NULL, "$SYS/broker/subscriptions/count", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(db.shared_subscription_count != shared_subscription_count){
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shared_subscription_count = db.shared_subscription_count;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", shared_subscription_count);
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db__messages_easy_queue(NULL, "$SYS/broker/shared_subscriptions/count", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(db.retained_count != retained_count){
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retained_count = db.retained_count;
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len = (uint32_t)snprintf(buf, BUFLEN, "%d", retained_count);
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db__messages_easy_queue(NULL, "$SYS/broker/retained messages/count", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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#ifdef REAL_WITH_MEMORY_TRACKING
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sys_tree__update_memory(buf);
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#endif
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if(msgs_received != g_msgs_received){
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msgs_received = g_msgs_received;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", msgs_received);
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db__messages_easy_queue(NULL, "$SYS/broker/messages/received", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(msgs_sent != g_msgs_sent){
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msgs_sent = g_msgs_sent;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", msgs_sent);
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db__messages_easy_queue(NULL, "$SYS/broker/messages/sent", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(publish_dropped != g_msgs_dropped){
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publish_dropped = g_msgs_dropped;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", publish_dropped);
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db__messages_easy_queue(NULL, "$SYS/broker/publish/messages/dropped", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(pub_msgs_received != g_pub_msgs_received){
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pub_msgs_received = g_pub_msgs_received;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", pub_msgs_received);
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db__messages_easy_queue(NULL, "$SYS/broker/publish/messages/received", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(pub_msgs_sent != g_pub_msgs_sent){
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pub_msgs_sent = g_pub_msgs_sent;
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len = (uint32_t)snprintf(buf, BUFLEN, "%lu", pub_msgs_sent);
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db__messages_easy_queue(NULL, "$SYS/broker/publish/messages/sent", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(bytes_received != g_bytes_received){
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bytes_received = g_bytes_received;
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len = (uint32_t)snprintf(buf, BUFLEN, "%llu", bytes_received);
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db__messages_easy_queue(NULL, "$SYS/broker/bytes/received", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(bytes_sent != g_bytes_sent){
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bytes_sent = g_bytes_sent;
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len = (uint32_t)snprintf(buf, BUFLEN, "%llu", bytes_sent);
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db__messages_easy_queue(NULL, "$SYS/broker/bytes/sent", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(pub_bytes_received != g_pub_bytes_received){
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pub_bytes_received = g_pub_bytes_received;
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len = (uint32_t)snprintf(buf, BUFLEN, "%llu", pub_bytes_received);
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db__messages_easy_queue(NULL, "$SYS/broker/publish/bytes/received", SYS_TREE_QOS, len, buf, 1, 0, NULL);
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}
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if(pub_bytes_sent != g_pub_bytes_sent){
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pub_bytes_sent = g_pub_bytes_sent;
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len = (uint32_t)snprintf(buf, BUFLEN, "%llu", pub_bytes_sent);
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db__messages_easy_queue(NULL, "$SYS/broker/publish/bytes/sent", SYS_TREE_QOS, len, buf, 1, 0, NULL);
|
|
}
|
|
|
|
last_update = db.now_s;
|
|
}
|
|
}
|
|
|
|
#endif
|