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// FbTime.hh for FbTk - Fluxbox Toolkit
// Copyright (c) 2012 Mathias Gumz (akira at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef FBTK_FBTIME_HH
#define FBTK_FBTIME_HH
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif // HAVE_INTTYPES_H
namespace FbTk {
// time in micro-seconds
//
// interesting links:
//
// http://www.python.org/dev/peps/pep-0418/#operating-system-time-functions
// http://en.cppreference.com/w/cpp/chrono
namespace FbTime {
const uint64_t IN_MILLISECONDS = 1000L;
const uint64_t IN_SECONDS = 1000L * IN_MILLISECONDS;
const uint64_t IN_MINUTES = 60 * IN_SECONDS;
uint64_t mono(); // point in time, always monotonic
uint64_t system(); // system time, might jump (DST, leap seconds)
// calculates the remaining microseconds from 'now' up to the
// next full 'unit'
inline uint64_t remainingNext(uint64_t now, uint64_t unit) {
return (unit - (now % unit) - 1);
}
} // namespace FbTime
} // namespace FbTk
#endif // FBTK_TIME_HH
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