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73 lines
2 KiB
C
73 lines
2 KiB
C
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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/* -*- mode: C; c-basic-offset: 4 -*- */
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#ident "$Id$"
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/*======
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This file is part of TokuDB
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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TokuDBis is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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TokuDB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with TokuDB. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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#ifndef _TOKUDB_TIME_H
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#define _TOKUDB_TIME_H
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#include "hatoku_defines.h"
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namespace tokudb {
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namespace time {
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static const ulonglong MILLISECONDS = 1000;
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static const ulonglong MICROSECONDS = 1000000;
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static const ulonglong NANOSECONDS = 1000000000;
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// gets curent time of day in microseconds
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ulonglong microsec(void);
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// gets a timespec in the future based on the current time and an offset forward
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timespec offset_timespec(ulonglong offset);
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// sleep microseconds
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void sleep_microsec(ulong tm);
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inline ulonglong microsec(void) {
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timeval t;
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gettimeofday(&t, NULL);
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return t.tv_sec * (1UL * 1000 * 1000) + t.tv_usec;
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}
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inline timespec offset_timespec(ulonglong offset) {
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timespec ret;
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ulonglong tm = offset + microsec();
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ret.tv_sec = tm / MICROSECONDS;
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ret.tv_nsec = (tm % MICROSECONDS) * 1000;
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return ret;
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}
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inline void sleep_microsec(ulong tm) {
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timeval t;
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t.tv_sec = tm / MICROSECONDS;
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t.tv_usec = tm % MICROSECONDS;
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select(0, NULL, NULL, NULL, &t);
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}
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} // namespace time
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} // namespace tokudb
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#endif // _TOKUDB_TIME_H
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