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/*********************************************************************************************************
* Software License Agreement (BSD License) *
* Author: Sebastien Decugis <sdecugis@freediameter.net> *
* *
* Copyright (c) 2020, WIDE Project and NICT *
* All rights reserved. *
* *
* Redistribution and use of this software in source and binary forms, with or without modification, are *
* permitted provided that the following conditions are met: *
* *
* * Redistributions of source code must retain the above *
* copyright notice, this list of conditions and the *
* following disclaimer. *
* *
* * Redistributions in binary form must reproduce the above *
* copyright notice, this list of conditions and the *
* following disclaimer in the documentation and/or other *
* materials provided with the distribution. *
* *
* * Neither the name of the WIDE Project or NICT nor the *
* names of its contributors may be used to endorse or *
* promote products derived from this software without *
* specific prior written permission of WIDE Project and *
* NICT. *
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
*********************************************************************************************************/
/* Monitoring extension:
- periodically display queues and peers information
- upon SIGUSR2, display additional debug information
*/
#include <freeDiameter/extension.h>
#include <signal.h>
#ifndef MONITOR_SIGNAL
#define MONITOR_SIGNAL SIGUSR2
#endif /* MONITOR_SIGNAL */
static int monitor_main(char * conffile);
EXTENSION_ENTRY("dbg_monitor", monitor_main);
/* Display information about a queue */
static void display_info(char * queue_desc, char * peer, int current_count, int limit_count, int highest_count, long long total_count,
struct timespec * total, struct timespec * blocking, struct timespec * last)
{
long long us = (total->tv_sec * 1000000) + (total->tv_nsec / 1000);
long double throughput = (long double)total_count * 1000000;
throughput /= us;
if (peer) {
TRACE_DEBUG(INFO, "'%s'@'%s': cur:%d/%d, h:%d, T:%lld in %ld.%06lds (%.2LFitems/s), blocked:%ld.%06lds, last processing:%ld.%06lds",
queue_desc, peer, current_count, limit_count, highest_count,
total_count, total->tv_sec, total->tv_nsec/1000, throughput,
blocking->tv_sec, blocking->tv_nsec/1000, last->tv_sec, last->tv_nsec/1000);
} else {
TRACE_DEBUG(INFO, "Global '%s': cur:%d/%d, h:%d, T:%lld in %ld.%06lds (%.2LFitems/s), blocked:%ld.%06lds, last processing:%ld.%06lds",
queue_desc, current_count, limit_count, highest_count,
total_count, total->tv_sec, total->tv_nsec/1000, throughput,
blocking->tv_sec, blocking->tv_nsec/1000, last->tv_sec, last->tv_nsec/1000);
}
}
/* Thread to display periodical debug information */
static pthread_t thr;
static void * mn_thr(void * arg)
{
#ifdef DEBUG
int i = 0;
#endif
fd_log_threadname("Monitor thread");
char * buf = NULL;
size_t len;
/* Loop */
while (1) {
int current_count, limit_count, highest_count;
long long total_count;
struct timespec total, blocking, last;
struct fd_list * li;
#ifdef DEBUG
for (i++; i % 30; i++) {
fd_log_debug("[dbg_monitor] %ih%*im%*is", i/3600, 2, (i/60) % 60 , 2, i%60); /* This makes it easier to detect inactivity periods in the log file */
sleep(1);
}
#else /* DEBUG */
sleep(3599); /* 1 hour */
#endif /* DEBUG */
TRACE_DEBUG(INFO, "[dbg_monitor] Dumping queues statistics");
CHECK_FCT_DO( fd_stat_getstats(STAT_G_LOCAL, NULL, ¤t_count, &limit_count, &highest_count, &total_count, &total, &blocking, &last), );
display_info("Local delivery", NULL, current_count, limit_count, highest_count, total_count, &total, &blocking, &last);
CHECK_FCT_DO( fd_stat_getstats(STAT_G_INCOMING, NULL, ¤t_count, &limit_count, &highest_count, &total_count, &total, &blocking, &last), );
display_info("Total received", NULL, current_count, limit_count, highest_count, total_count, &total, &blocking, &last);
CHECK_FCT_DO( fd_stat_getstats(STAT_G_OUTGOING, NULL, ¤t_count, &limit_count, &highest_count, &total_count, &total, &blocking, &last), );
display_info("Total sending", NULL, current_count, limit_count, highest_count, total_count, &total, &blocking, &last);
CHECK_FCT_DO( pthread_rwlock_rdlock(&fd_g_peers_rw), /* continue */ );
for (li = fd_g_peers.next; li != &fd_g_peers; li = li->next) {
struct peer_hdr * p = (struct peer_hdr *)li->o;
TRACE_DEBUG(INFO, "%s", fd_peer_dump(&buf, &len, NULL, p, 1));
CHECK_FCT_DO( fd_stat_getstats(STAT_P_PSM, p, ¤t_count, &limit_count, &highest_count, &total_count, &total, &blocking, &last), );
display_info("Events, incl. recept", p->info.pi_diamid, current_count, limit_count, highest_count, total_count, &total, &blocking, &last);
CHECK_FCT_DO( fd_stat_getstats(STAT_P_TOSEND, p, ¤t_count, &limit_count, &highest_count, &total_count, &total, &blocking, &last), );
display_info("Outgoing", p->info.pi_diamid, current_count, limit_count, highest_count, total_count, &total, &blocking, &last);
}
CHECK_FCT_DO( pthread_rwlock_unlock(&fd_g_peers_rw), /* continue */ );
TRACE_DEBUG(INFO, "[dbg_monitor] Dumping servers information");
TRACE_DEBUG(INFO, "%s", fd_servers_dump(&buf, &len, NULL, 1));
sleep(1);
}
free(buf);
return NULL;
}
/* Function called on receipt of MONITOR_SIGNAL */
static void got_sig()
{
char * buf = NULL;
size_t len;
TRACE_DEBUG(INFO, "[dbg_monitor] Dumping config information");
TRACE_DEBUG(INFO, "%s", fd_conf_dump(&buf, &len, NULL));
TRACE_DEBUG(INFO, "[dbg_monitor] Dumping extensions information");
TRACE_DEBUG(INFO, "%s", fd_ext_dump(&buf, &len, NULL));
TRACE_DEBUG(INFO, "[dbg_monitor] Dumping dictionary information");
TRACE_DEBUG(INFO, "%s", fd_dict_dump(&buf, &len, NULL, fd_g_config->cnf_dict));
free(buf);
}
/* Entry point */
static int monitor_main(char * conffile)
{
TRACE_ENTRY("%p", conffile);
/* Catch signal SIGUSR1 */
CHECK_FCT( fd_event_trig_regcb(MONITOR_SIGNAL, "dbg_monitor", got_sig));
CHECK_POSIX( pthread_create( &thr, NULL, mn_thr, NULL ) );
return 0;
}
/* Cleanup */
void fd_ext_fini(void)
{
TRACE_ENTRY();
CHECK_FCT_DO( fd_thr_term(&thr), /* continue */ );
return ;
}
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