mirror of
https://github.com/ntop/ntopng.git
synced 2026-05-22 02:38:59 +00:00
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/*
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*
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* (C) 2019 - 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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/* ******************************* */
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LuaReusableEngine::LuaReusableEngine(const char *_script_path, NetworkInterface *_iface, int _reload_interval) {
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script_path = strdup(_script_path);
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reload_interval = _reload_interval;
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iface = _iface;
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vm = NULL;
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next_reload = 0;
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}
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/* ******************************* */
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LuaReusableEngine::~LuaReusableEngine() {
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if(script_path) free(script_path);
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if(vm) delete vm;
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}
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/* ******************************* */
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void LuaReusableEngine::reloadVm(time_t now) {
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if(vm) {
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delete vm;
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vm = NULL;
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}
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try {
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vm = new LuaEngine(NULL);
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} catch(std::bad_alloc& ba) {
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static bool oom_warning_sent = false;
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if(!oom_warning_sent) {
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ntop->getTrace()->traceEvent(TRACE_ERROR, "[ThreadedActivity] Unable to start a Lua interpreter.");
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oom_warning_sent = true;
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}
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return;
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}
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if(vm->load_script(script_path, iface) == 0) {
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next_reload = now + reload_interval;
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} else {
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/* Retry next time */
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delete vm;
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vm = NULL;
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}
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}
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/* ******************************* */
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LuaEngine* LuaReusableEngine::getVm(time_t now) {
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if((vm == NULL) || (now >= next_reload))
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reloadVm(now);
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return(vm);
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}
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