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/*
* Copyright 2008 Free Software Foundation, Inc.
*
* This software is distributed under the terms of the GNU Public License.
* See the COPYING 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 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TIMEVAL_H
#define TIMEVAL_H
#include "sys/time.h"
#include <iostream>
inline void msleep(long v) { usleep((v+500)/1000); }
/** A C++ wrapper for struct timeval. */
class Timeval {
private:
struct timeval mTimeval;
public:
/** Set the value to gettimeofday. */
void now() { gettimeofday(&mTimeval,NULL); }
/** Set the value to gettimeofday plus an offset. */
void future(unsigned offset);
//@{
Timeval(unsigned sec, unsigned usec)
{
mTimeval.tv_sec = sec;
mTimeval.tv_usec = usec;
}
Timeval(const struct timeval& wTimeval)
:mTimeval(wTimeval)
{}
/**
Create a Timeval 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 mTimeval.tv_sec; }
uint32_t usec() const { return mTimeval.tv_usec; }
/** Return differnce 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 gettimeofday. */
bool passed() const;
};
std::ostream& operator<<(std::ostream& os, const Timeval&);
std::ostream& operator<<(std::ostream& os, const struct timespec&);
#endif
// vim: ts=4 sw=4
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