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/*
* Copyright 2012 Thomas Tsou <ttsou@vt.edu>
*
* 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 Affero 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/>.
* See the COPYING file in the main directory for details.
*/
#include <time.h>
#include <signal.h>
#include <GSMCommon.h>
#include <Logger.h>
#include <Configuration.h>
#include "Transceiver.h"
#include "radioDevice.h"
#define DEVICERATE (400e3 * CHAN_M)
ConfigurationTable gConfig("/etc/OpenBTS/OpenBTS.db");
volatile bool gbShutdown = false;
static void sigHandler(int signum)
{
LOG(NOTICE) << "Received shutdown signal";
gbShutdown = true;
}
static int setupSignals()
{
struct sigaction action;
action.sa_handler = sigHandler;
sigemptyset(&action.sa_mask);
action.sa_flags = 0;
if (sigaction(SIGINT, &action, NULL) < 0)
return -1;
if (sigaction(SIGTERM, &action, NULL) < 0)
return -1;
return 0;
}
int main(int argc, char *argv[])
{
RadioDevice *usrp;
RadioInterface* radio;
DriveLoop *drive;
Transceiver *trx0, *trx1, *trx2;
gLogInit("transceiver", gConfig.getStr("Log.Level").c_str(), LOG_LOCAL7);
if (setupSignals() < 0) {
LOG(ERR) << "Failed to setup signal handlers, exiting...";
exit(-1);
}
srandom(time(NULL));
usrp = RadioDevice::make(DEVICERATE);
if (!usrp->open()) {
LOG(ALERT) << "Failed to open device, exiting...";
return EXIT_FAILURE;
}
radio = new RadioInterface(usrp, 3, SAMPSPERSYM, 0, false);
drive = new DriveLoop(SAMPSPERSYM, GSM::Time(3,0), radio);
LOG(NOTICE) << "Creating TRX0";
trx0 = new Transceiver(5700, "127.0.0.1", SAMPSPERSYM, radio, drive, 0);
radio->activateChan(0);
trx0->start();
LOG(NOTICE) << "Creating TRX1";
trx1 = new Transceiver(6700, "127.0.0.1", SAMPSPERSYM, radio, drive, 1);
radio->activateChan(1);
trx1->start();
LOG(NOTICE) << "Creating TRX2";
trx2 = new Transceiver(7700, "127.0.0.1", SAMPSPERSYM, radio, drive, 4);
radio->activateChan(4);
trx2->start();
while (!gbShutdown) {
sleep(1);
}
LOG(NOTICE) << "Shutting down transceivers...";
trx0->shutdown();
trx1->shutdown();
trx2->shutdown();
/*
* Allow time for threads to end before we start freeing objects
*/
sleep(2);
delete trx0;
delete trx1;
delete trx2;
delete drive;
delete radio;
delete usrp;
}
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