Osmocom GSM/GPRS/EGPRS transceiver, originally forked from OpenBTS transceiver. For building SDR based GSM BTS with osmo-bts-trx.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
osmo-trx/tests/CommonLibs/TimevalTest.cpp

75 lines
2.3 KiB

/*
* Copyright 2008 Free Software Foundation, Inc.
*
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
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/>.
*/
#include "Timeval.h"
#include <iostream>
#include <assert.h>
#include <sys/time.h>
extern "C" {
#include <osmocom/core/timer.h>
}
using namespace std;
int main(int argc, char *argv[])
{
osmo_clock_override_enable(CLOCK_REALTIME, true);
struct timespec *clk = osmo_clock_override_gettimespec(CLOCK_REALTIME);
clk->tv_sec = 0;
clk->tv_nsec = 1000;
long last_remaining = 10000; /*10 sec */
Timeval then(last_remaining);
assert(then.elapsed() == -last_remaining);
cerr << then << " elapsed: " << then.elapsed() << endl;
/* Check that last_remaining parameter affects setting time in the future */
osmo_clock_override_add(CLOCK_REALTIME, 0, 10*1000*1000);
double increased_time_secs = Timeval().seconds();
assert(increased_time_secs < then.seconds());
struct timespec invariant_time = then.timespec();
int loops = 0;
while (!then.passed()) {
struct timespec tspecnow = then.timespec();
cerr << "["<< loops << "] now: " << Timeval().seconds() << " then: " << then << " remaining: " << then.remaining() << endl;
assert(last_remaining >= then.remaining());
assert(tspecnow.tv_sec == invariant_time.tv_sec && tspecnow.tv_nsec == invariant_time.tv_nsec);
osmo_clock_override_add(CLOCK_REALTIME, 0, 500000*1000);
loops++;
}
cerr << "now: " << Timeval() << " then: " << then << " remaining: " << then.remaining() << endl;
assert(then.remaining() == -10);
assert(loops == 20);
printf("Done\n");
}