Osmocom GSM/GPRS/EGPRS transceiver, originally forked from OpenBTS transceiver. For building SDR based GSM BTS with osmo-bts-trx.
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/*
* Copyright 2008 Free Software Foundation, Inc.
*
* SPDX-License-Identifier: AGPL-3.0+
*
* 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/>.
*/
#ifndef TIMEVAL_H
#define TIMEVAL_H
#include <stdint.h>
#include "sys/time.h"
#include <iostream>
#include <unistd.h>
/** A wrapper on usleep to sleep for milliseconds. */
inline void msleep(long v) { usleep(v*1000); }
/** A C++ wrapper for struct timeval. */
class Timeval {
private:
struct timespec mTimespec;
public:
/** Set the value to current time. */
void now();
/** Set the value to gettimeofday plus an offset. */
void future(unsigned ms);
//@{
Timeval(unsigned sec, unsigned usec)
{
mTimespec.tv_sec = sec;
mTimespec.tv_nsec = usec*1000;
}
Timeval(const struct timeval& wTimeval)
{
mTimespec.tv_sec = wTimeval.tv_sec;
mTimespec.tv_nsec = wTimeval.tv_sec*1000;
}
/**
Create a Timespec offset into the future.
@param offset milliseconds
*/
Timeval(unsigned offset=0) { future(offset); }
//@}
/** Convert to a struct timespec. */
struct timespec timespec() const;
/** Return total seconds. */
double seconds() const;
uint32_t sec() const { return mTimespec.tv_sec; }
uint32_t usec() const { return mTimespec.tv_nsec / 1000; }
uint32_t nsec() const { return mTimespec.tv_nsec; }
/** Return difference from other (other-self), in ms. */
long delta(const Timeval& other) const;
/** Elapsed time in ms. */
long elapsed() const { return delta(Timeval()); }
/** Remaining time in ms. */
long remaining() const { return -elapsed(); }
/** Return true if the time has passed, as per clock_gettime(CLOCK_REALTIME). */
bool passed() const;
/** Add a given number of minutes to the time. */
void addMinutes(unsigned minutes) { mTimespec.tv_sec += minutes*60; }
};
std::ostream& operator<<(std::ostream& os, const Timeval&);
std::ostream& operator<<(std::ostream& os, const struct timespec&);
#endif
// vim: ts=4 sw=4