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/*
This file is part of Kismet
Kismet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kismet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Kismet; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <sys/time.h>
#include "timetracker.h"
Timetracker::Timetracker() {
next_timer_id = 0;
}
Timetracker::~Timetracker() {
// Free the events
for (map<int, timer_event *>::iterator x = timer_map.begin();
x != timer_map.end(); ++x)
delete x->second;
}
int Timetracker::Tick() {
// Handle scheduled events
struct timeval cur_tm;
gettimeofday(&cur_tm, NULL);
timer_event *evt;
for (unsigned int x = 0; x < sorted_timers.size(); x++) {
evt = sorted_timers[x];
if ((cur_tm.tv_sec < evt->trigger_tm.tv_sec) ||
((cur_tm.tv_sec == evt->trigger_tm.tv_sec) && (cur_tm.tv_usec < evt->trigger_tm.tv_usec)))
return 1;
// Call the function with the given parameters
int ret;
ret = (*evt->callback)(evt, evt->callback_parm);
if (ret > 0 && evt->timeslices != -1 && evt->recurring) {
evt->schedule_tm.tv_sec = cur_tm.tv_sec;
evt->schedule_tm.tv_usec = cur_tm.tv_usec;
evt->trigger_tm.tv_sec = evt->schedule_tm.tv_sec + (evt->timeslices / 10);
evt->trigger_tm.tv_usec = evt->schedule_tm.tv_usec + (100000 * (evt->timeslices % 10));
if (evt->trigger_tm.tv_usec > 999999) {
evt->trigger_tm.tv_usec = evt->trigger_tm.tv_usec - 1000000;
evt->trigger_tm.tv_sec++;
}
// Resort the list
stable_sort(sorted_timers.begin(), sorted_timers.end(), SortTimerEventsTrigger());
} else {
RemoveTimer(evt->timer_id);
}
}
return 1;
}
int Timetracker::RegisterTimer(int in_timeslices, struct timeval *in_trigger,
int in_recurring, int (*in_callback)(timer_event *, void *),
void *in_parm) {
timer_event *evt = new timer_event;
evt->timer_id = next_timer_id++;
gettimeofday(&(evt->schedule_tm), NULL);
if (in_trigger != NULL) {
evt->trigger_tm.tv_sec = in_trigger->tv_sec;
evt->trigger_tm.tv_usec = in_trigger->tv_usec;
evt->timeslices = -1;
} else {
evt->trigger_tm.tv_sec = evt->schedule_tm.tv_sec + (in_timeslices / 10);
evt->trigger_tm.tv_usec = evt->schedule_tm.tv_usec + (in_timeslices % 10);
evt->timeslices = in_timeslices;
}
evt->recurring = in_recurring;
evt->callback = in_callback;
evt->callback_parm = in_parm;
timer_map[evt->timer_id] = evt;
sorted_timers.push_back(evt);
// Resort the list
stable_sort(sorted_timers.begin(), sorted_timers.end(), SortTimerEventsTrigger());
return evt->timer_id;
}
int Timetracker::RemoveTimer(int in_timerid) {
map<int, timer_event *>::iterator itr;
itr = timer_map.find(in_timerid);
if (itr != timer_map.end()) {
for (unsigned int x = 0; x < sorted_timers.size(); x++) {
if (sorted_timers[x]->timer_id == in_timerid)
sorted_timers.erase(sorted_timers.begin() + x);
}
// Resort the list
stable_sort(sorted_timers.begin(), sorted_timers.end(), SortTimerEventsTrigger());
delete itr->second;
timer_map.erase(itr);
return 1;
}
return -1;
}
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