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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"
ConfigurationTable gConfig("/etc/OpenBTS/OpenBTS.db");
volatile bool gbShutdown = false;
int Transceiver::mTSC = -1;
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[])
{
int numARFCN = 1;
std::string deviceArgs = "";
switch (argc) {
case 3:
deviceArgs = std::string(argv[2]);
case 2:
numARFCN = atoi(argv[1]);
if (numARFCN > CHAN_MAX) {
LOG(ALERT) << numARFCN << " channels not supported "
<< " with with current build";
exit(-1);
}
case 1:
break;
default:
std::cout << argv[0] << " <chans> <device args>" << std::endl;
return -1;
}
gLogInit("transceiver", gConfig.getStr("Log.Level").c_str(), LOG_LOCAL7);
srandom(time(NULL));
if (setupSignals() < 0) {
LOG(ERR) << "Failed to setup signal handlers, exiting...";
exit(-1);
}
RadioDevice *device = RadioDevice::make(SAMPSPERSYM);
int radioType = device->open(deviceArgs);
if (radioType < 0) {
LOG(ALERT) << "Failed to open device, exiting...";
return EXIT_FAILURE;
}
RadioInterface *radio;
switch (radioType) {
case RadioDevice::NORMAL:
radio = new RadioInterface(device, numARFCN);
break;
case RadioDevice::RESAMP:
default:
LOG(ALERT) << "Unsupported configuration";
return EXIT_FAILURE;
}
DriveLoop *drive;
drive = new DriveLoop(5700, "127.0.0.1", radio, numARFCN, 0);
if (!drive->init()) {
LOG(ALERT) << "Failed to initialize drive loop";
}
Transceiver *trx[CHAN_MAX];
bool primary = true;
for (int i = 0; i < numARFCN; i++) {
trx[i] = new Transceiver(5700 + 2 * i, "127.0.0.1",
drive, radio, SAMPSPERSYM,
i, primary);
trx[i]->start();
primary = false;
}
while (!gbShutdown)
sleep(1);
LOG(NOTICE) << "Shutting down transceivers...";
for (int i = 0; i < numARFCN; i++)
trx[i]->shutdown();
/* Allow time for threads to end before we start freeing objects */
sleep(2);
for (int i = 0; i < numARFCN; i++)
delete trx[i];
delete drive;
delete radio;
delete device;
}
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