79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/* poll_controller.h
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*
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* Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
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* Copyright (C) 2013 by Holger Hans Peter Freyther
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*
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* All Rights Reserved
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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 Affero 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 Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <poll_controller.h>
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#include <bts.h>
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#include <tbf.h>
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#include <tbf_ul.h>
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#include <tbf_dl.h>
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#include <cxx_linuxlist.h>
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#include <sba.h>
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extern "C" {
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/gsm/gsm_utils.h>
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}
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PollController::PollController(struct gprs_rlcmac_bts& bts)
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: m_bts(bts)
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{}
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static inline bool elapsed_fn_check(unsigned max_delay, int frame_number, uint32_t from)
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{
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uint32_t elapsed = (frame_number + GSM_MAX_FN - from) % GSM_MAX_FN;
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if (elapsed > max_delay && elapsed < 2715400)
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return true;
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return false;
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}
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void PollController::expireTimedout(int frame_number, unsigned max_delay)
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{
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struct gprs_rlcmac_dl_tbf *dl_tbf;
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struct gprs_rlcmac_ul_tbf *ul_tbf;
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struct gprs_rlcmac_sba *sba, *sba2;
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struct llist_item *pos;
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llist_for_each_entry(pos, &m_bts.ul_tbfs, list) {
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ul_tbf = as_ul_tbf((struct gprs_rlcmac_tbf *)pos->entry);
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if (ul_tbf->poll_scheduled()) {
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if (elapsed_fn_check(max_delay, frame_number, ul_tbf->poll_fn))
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ul_tbf->poll_timeout();
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}
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}
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llist_for_each_entry(pos, &m_bts.dl_tbfs, list) {
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dl_tbf = as_dl_tbf((struct gprs_rlcmac_tbf *)pos->entry);
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if (dl_tbf->poll_scheduled()) {
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if (elapsed_fn_check(max_delay, frame_number, dl_tbf->poll_fn))
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dl_tbf->poll_timeout();
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}
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}
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llist_for_each_entry_safe(sba, sba2, &bts_sba(&m_bts)->m_sbas, list) {
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if (elapsed_fn_check(max_delay, frame_number, sba->fn)) {
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/* sba will be freed here */
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bts_sba(&m_bts)->timeout(sba);
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}
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}
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}
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