67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* (C) 2019 by Harald Welte <laforge@gnumonks.org>
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* All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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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
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* by the Free Software Foundation; either version 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <sched.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <dahdi/user.h>
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#include <osmocom/core/utils.h>
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/* we could generate a lookup table at start ... */
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uint8_t bits_set_in_byte(uint8_t byte)
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{
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uint8_t ret = 0;
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int i;
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for (i = 0; i < 8; i++) {
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if (byte & (1 << i))
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ret += 1;
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}
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return ret;
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}
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void cfg_dahdi_buffer(int fd)
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{
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struct dahdi_bufferinfo bi = {
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.txbufpolicy = DAHDI_POLICY_WHEN_FULL, /* default is immediate */
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.rxbufpolicy = DAHDI_POLICY_WHEN_FULL, /* default is immediate */
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.numbufs = 8, /* default is 2 */
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.bufsize = 1024, /* default is 1024 */
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.readbufs = -1,
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.writebufs = -1,
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};
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OSMO_ASSERT(ioctl(fd, DAHDI_SET_BUFINFO, &bi) == 0);
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}
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void set_realtime(int rt_prio)
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{
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struct sched_param param;
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int rc;
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memset(¶m, 0, sizeof(param));
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param.sched_priority = rt_prio;
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rc = sched_setscheduler(getpid(), SCHED_RR, ¶m);
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OSMO_ASSERT(rc == 0);
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}
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