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/* 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)
{}
static inline bool elapsed_fn_check(unsigned max_delay, int frame_number, uint32_t from)
{
uint32_t elapsed = (frame_number + GSM_MAX_FN - from) % GSM_MAX_FN;
if (elapsed > max_delay && elapsed < 2715400)
return true;
return false;
}
void PollController::expireTimedout(int frame_number, unsigned max_delay)
{
struct gprs_rlcmac_dl_tbf *dl_tbf;
struct gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_sba *sba, *sba2;
LListHead<gprs_rlcmac_tbf> *pos;
llist_for_each(pos, &m_bts.ul_tbfs()) {
ul_tbf = as_ul_tbf(pos->entry());
if (ul_tbf->poll_scheduled()) {
if (elapsed_fn_check(max_delay, frame_number, ul_tbf->poll_fn))
ul_tbf->poll_timeout();
}
}
llist_for_each(pos, &m_bts.dl_tbfs()) {
dl_tbf = as_dl_tbf(pos->entry());
if (dl_tbf->poll_scheduled()) {
if (elapsed_fn_check(max_delay, frame_number, dl_tbf->poll_fn))
dl_tbf->poll_timeout();
}
}
llist_for_each_entry_safe(sba, sba2, &m_bts.sba()->m_sbas, list) {
if (elapsed_fn_check(max_delay, frame_number, sba->fn)) {
/* sba will be freed here */
m_bts.sba()->timeout(sba);
}
}
}
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