osmo-pcu/src/poll_controller.cpp

64 lines
1.9 KiB
C++

/* poll_controller.h
*
* Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
* Copyright (C) 2013 by Holger Hans Peter Freyther
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <poll_controller.h>
#include <bts.h>
#include <tbf.h>
PollController::PollController(BTS& bts)
: m_bts(bts)
{}
void PollController::expireTimedout(int frame_number)
{
struct gprs_rlcmac_bts *bts = m_bts.bts_data();
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_sba *sba, *sba2;
uint32_t elapsed;
/* check for poll timeout */
llist_for_each_entry(tbf, &bts->ul_tbfs, list) {
if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED) {
elapsed = (frame_number + 2715648 - tbf->poll_fn)
% 2715648;
if (elapsed >= 20 && elapsed < 2715400)
tbf->poll_timeout();
}
}
llist_for_each_entry(tbf, &bts->dl_tbfs, list) {
if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED) {
elapsed = (frame_number + 2715648 - tbf->poll_fn)
% 2715648;
if (elapsed >= 20 && elapsed < 2715400)
tbf->poll_timeout();
}
}
llist_for_each_entry_safe(sba, sba2, &m_bts.sba()->m_sbas, list) {
elapsed = (frame_number + 2715648 - sba->fn) % 2715648;
if (elapsed >= 20 && elapsed < 2715400) {
/* sba will be freed here */
m_bts.sba()->timeout(sba);
}
}
}