Mercurial > hg > toybox

view toys/other/usleep.c @ 1101:ccf4193167c3 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Make the patch -x option (only enabled with CONFIG_DEBUG) provide more information about why a patch didn't apply. (Offset of first nonmatching character at each line during seek phase.)
author Rob Landley <rob@landley.net>
date Thu, 31 Oct 2013 09:36:55 -0500
parents 786841fdb1e0
children
line wrap: on
line source

/* usleep.c - Wait for a number of microseconds.
 *
 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>

USE_USLEEP(NEWTOY(usleep, "<1", TOYFLAG_BIN))

config USLEEP
  bool "usleep"
  default y
  help
    usage: usleep MICROSECONDS

    Pause for MICROSECONDS microseconds.
*/

#include "toys.h"

void usleep_main(void)
{
  struct timespec tv;
  long delay = atol(*toys.optargs);

  tv.tv_sec = delay/1000000;
  tv.tv_nsec = (delay%1000000) * 1000;
  toys.exitval = !!nanosleep(&tv, NULL);
}