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/*
* Copyright (C) 2004,2014 Robin Gareus <robin@gareus.org>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdint.h>
#include <sys/select.h>
/* select() sleeps _at most_ a given time.
* (compared to usleep() or nanosleep() which sleep at least a given time)
*/
static void select_sleep (uint64_t usec) {
if (usec <= 10) return;
fd_set fd;
int max_fd=0;
struct timeval tv;
tv.tv_sec = usec / 1000000;
tv.tv_usec = usec % 1000000;
FD_ZERO (&fd);
select (max_fd, &fd, NULL, NULL, &tv);
// on Linux, tv reflects the actual time slept.
}
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