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/*
* osmo-e1d.c
*
* (C) 2019 by Sylvain Munaut <tnt@246tNt.com>
*
* All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+
*
* This program 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.
*
* 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <errno.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <talloc.h>
#include <osmocom/core/application.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/select.h>
#include <osmocom/e1d/proto_srv.h>
#include "e1d.h"
#include "log.h"
extern struct osmo_e1dp_server_handler e1d_ctl_handlers[];
extern int e1_usb_probe(struct e1_daemon *e1d);
extern int e1_usb_poll(void);
static void *g_e1d_ctx = NULL;
static int g_shutdown = 0;
static void sig_handler(int signo)
{
fprintf(stdout, "signal %d received\n", signo);
switch (signo) {
case SIGINT:
case SIGTERM:
fprintf(stdout, "shutting down\n");
g_shutdown = 1;
break;
case SIGABRT:
case SIGUSR1:
talloc_report(g_e1d_ctx, stderr);
talloc_report_full(g_e1d_ctx, stderr);
break;
case SIGUSR2:
talloc_report_full(g_e1d_ctx, stderr);
break;
default:
break;
}
}
int main(int argc, char *argv[])
{
struct e1_daemon *e1d = NULL;
struct osmo_e1dp_server *srv = NULL;
struct sched_param sp;
int rv;
/* talloc init */
g_e1d_ctx = talloc_named_const(NULL, 0, "osmo-e1d");
msgb_talloc_ctx_init(g_e1d_ctx, 0);
/* logging init */
osmo_init_logging2(g_e1d_ctx, &log_info);
/* signals init */
signal(SIGINT, &sig_handler);
signal(SIGTERM, &sig_handler);
signal(SIGABRT, &sig_handler);
signal(SIGUSR1, &sig_handler);
signal(SIGUSR2, &sig_handler);
osmo_init_ignore_signals();
/* rt prio */
memset(&sp, 0x00, sizeof(sp));
sp.sched_priority = 50;
rv = sched_setscheduler(0, SCHED_RR, &sp);
if (rv != 0) {
LOGP(DE1D, LOGL_ERROR, "Failed to set Real-Time priority. USB comms might be unstable.\n");
perror("sched_setscheduler");
}
/* main state */
e1d = talloc_zero(g_e1d_ctx, struct e1_daemon);
OSMO_ASSERT(e1d);
INIT_LLIST_HEAD(&e1d->interfaces);
/* probe devices */
rv = e1_usb_probe(e1d);
if (rv != 0) {
LOGP(DE1D, LOGL_ERROR, "Failed to prove usb devices\n");
}
/* server init */
srv = osmo_e1dp_server_create(g_e1d_ctx, "/tmp/osmo-e1d.ctl", e1d_ctl_handlers, e1d);
OSMO_ASSERT(srv);
/* main loop */
while (!g_shutdown) {
osmo_select_main(1);
e1_usb_poll();
}
/* cleanup */
if (srv)
osmo_e1dp_server_destroy(srv);
talloc_free(e1d);
return 0;
}
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