mirror of
https://github.com/ntop/ntopng.git
synced 2026-05-19 16:13:43 +00:00
201 lines
7.7 KiB
C++
201 lines
7.7 KiB
C++
/*
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*
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* (C) 2013-20 - ntop.org
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include "ntop_includes.h"
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typedef struct _activity_descr {
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const char *path;
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u_int32_t periodicity;
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u_int32_t max_duration_secs;
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ThreadPool *pool;
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bool align_to_localtime;
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bool exclude_viewed_interfaces;
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bool exclude_pcap_dump_interfaces;
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bool reuse_vm;
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} activity_descr;
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/* ******************************************* */
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PeriodicActivities::PeriodicActivities() {
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for(u_int16_t i = 0; i < CONST_MAX_NUM_THREADED_ACTIVITIES; i++)
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activities[i] = NULL;
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high_priority_pool = standard_priority_pool = no_priority_pool = longrun_priority_pool
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= timeseries_pool = periodic_user_scripts_pool = discover_pool
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= housekeeping_pool = notifications_pool = purge_idle_pool = NULL;
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num_activities = 0;
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}
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/* ******************************************* */
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PeriodicActivities::~PeriodicActivities() {
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/* Important: destroy the ThreadedActivities only *after* ensuring that both its pthreadLoop
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* thread and the possibly running activity into the ThreadPool::run thread
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* have been terminated. */
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for(u_int16_t i = 0; i < CONST_MAX_NUM_THREADED_ACTIVITIES; i++) {
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/* This will terminate the pthreadLoop of the activities */
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if(activities[i])
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activities[i]->terminateEnqueueLoop();
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}
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/* This will terminate any possibly running activities into the ThreadPool::run */
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if(high_priority_pool) delete high_priority_pool;
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if(standard_priority_pool) delete standard_priority_pool;
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if(longrun_priority_pool) delete longrun_priority_pool;
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if(timeseries_pool) delete timeseries_pool;
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if(notifications_pool) delete notifications_pool;
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if(periodic_user_scripts_pool) delete periodic_user_scripts_pool;
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if(discover_pool) delete discover_pool;
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if(housekeeping_pool) delete housekeeping_pool;
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if(purge_idle_pool) delete purge_idle_pool;
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if(no_priority_pool) delete no_priority_pool;
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/* Now it's safe to delete the activities as no other thread is executing
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* their code. */
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for(u_int16_t i = 0; i < CONST_MAX_NUM_THREADED_ACTIVITIES; i++) {
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if(activities[i]) {
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delete activities[i];
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activities[i] = NULL;
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num_activities--;
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}
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}
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}
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/* ******************************************* */
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void PeriodicActivities::lua(NetworkInterface *iface, lua_State *vm) {
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for(int i = 0; i < num_activities; i++) {
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if(activities[i])
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activities[i]->lua(iface, vm);
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}
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}
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/* ******************************************* */
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void PeriodicActivities::sendShutdownSignal() {
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for(u_int16_t i = 0; i < CONST_MAX_NUM_THREADED_ACTIVITIES; i++) {
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if(activities[i])
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activities[i]->shutdown();
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}
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}
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/* ******************************************* */
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void PeriodicActivities::startPeriodicActivitiesLoop() {
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struct stat buf;
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ThreadedActivity *startup_activity;
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u_int8_t num_threads = ntop->get_num_interfaces() + 1; /* +1 for the system interface */
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u_int8_t num_threads_no_priority = DEFAULT_THREAD_POOL_SIZE;
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ntop->getTrace()->traceEvent(TRACE_NORMAL, "Started periodic activities loop...");
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if(stat(ntop->get_callbacks_dir(), &buf) != 0) {
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ntop->getTrace()->traceEvent(TRACE_ERROR, "Unable to read directory %s", ntop->get_callbacks_dir());
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ntop->getTrace()->traceEvent(TRACE_ERROR, "Possible cause:\n");
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ntop->getTrace()->traceEvent(TRACE_ERROR, "The current user cannot access %s.", ntop->get_callbacks_dir());
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ntop->getTrace()->traceEvent(TRACE_ERROR, "Please fix the directory right or add --dont-change-user to");
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ntop->getTrace()->traceEvent(TRACE_ERROR, "the ntopng command line.");
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exit(0);
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}
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if((startup_activity = new ThreadedActivity(STARTUP_SCRIPT_PATH, false))) {
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/*
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Don't call run() as by the time the script will be run
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the delete below will free the memory
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*/
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startup_activity->runSystemScript(time(NULL));
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delete startup_activity;
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startup_activity = NULL;
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}
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if(num_threads_no_priority < num_threads)
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num_threads_no_priority = num_threads;
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if(num_threads_no_priority > MAX_THREAD_POOL_SIZE)
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num_threads_no_priority = MAX_THREAD_POOL_SIZE;
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high_priority_pool = new ThreadPool(true, num_threads);
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standard_priority_pool = new ThreadPool(false, num_threads);
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longrun_priority_pool = new ThreadPool(false, num_threads);
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purge_idle_pool = new ThreadPool(false, 1);
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timeseries_pool = new ThreadPool(false, 1);
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notifications_pool = new ThreadPool(false, 1);
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periodic_user_scripts_pool = new ThreadPool(false, 2);
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discover_pool = new ThreadPool(false, 1);
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housekeeping_pool = new ThreadPool(false, 1);
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no_priority_pool = new ThreadPool(false, num_threads_no_priority);
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static activity_descr ad[] = {
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// Script Periodicity (s) Max (s) Pool Align !View !PCAP Reuse
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{ SECOND_SCRIPT_PATH, 1, 2, standard_priority_pool, false, false, true, true },
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{ STATS_UPDATE_SCRIPT_PATH, 5, 10, standard_priority_pool, false, false, true, true },
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{ PERIODIC_USER_SCRIPTS_PATH, 5, 60, periodic_user_scripts_pool, false, false, true, true },
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{ HOUSEKEEPING_SCRIPT_PATH, 3, 6, housekeeping_pool, false, false, false, true },
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{ MINUTE_SCRIPT_PATH, 60, 60, no_priority_pool, false, false, true, false },
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{ DAILY_SCRIPT_PATH, 86400, 3600, no_priority_pool, true, false, true, false },
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#ifdef HAVE_NEDGE
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{ PINGER_SCRIPT_PATH, 5, 5, no_priority_pool, false, false, true, false },
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#endif
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{ TIMESERIES_SCRIPT_PATH, 1, 3600, timeseries_pool, false, false, true, true },
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{ NOTIFICATIONS_SCRIPT_PATH, 1, 3600, notifications_pool, false, false, false, false },
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{ FIVE_MINUTES_SCRIPT_PATH, 300, 300, longrun_priority_pool, false, false, true, false },
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{ HOURLY_SCRIPT_PATH, 3600, 600, longrun_priority_pool, false, false, true, false },
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{ DISCOVER_SCRIPT_PATH, 5, 3600, discover_pool, false, false, true, true },
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{ NULL, 0, 0, NULL, false, false, false, false }
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};
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ntop->getTrace()->traceEvent(TRACE_NORMAL, "Each periodic activity script will use %u threads", num_threads);
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activity_descr *d = ad;
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while(d->path) {
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ThreadedActivity *ta = new ThreadedActivity(d->path,
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d->periodicity,
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d->max_duration_secs,
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d->align_to_localtime,
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d->exclude_viewed_interfaces,
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d->exclude_pcap_dump_interfaces,
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d->reuse_vm,
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d->pool);
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if(ta) {
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activities[num_activities++] = ta;
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ta->run();
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}
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d++;
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}
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}
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/* ******************************************* */
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void PeriodicActivities::reloadVMs() {
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time_t next_reload = time(NULL) + 1;
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for(int i = 0; i < num_activities; i++)
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activities[i]->setNextVmReload(next_reload);
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}
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