toys/other/usleep.c

0f66f451Sopenharmony_ci/* usleep.c - Wait for a number of microseconds.
0f66f451Sopenharmony_ci *
0f66f451Sopenharmony_ci * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ciUSE_USLEEP(NEWTOY(usleep, "<1", TOYFLAG_BIN))
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ciconfig USLEEP
0f66f451Sopenharmony_ci  bool "usleep"
0f66f451Sopenharmony_ci  default y
0f66f451Sopenharmony_ci  help
0f66f451Sopenharmony_ci    usage: usleep MICROSECONDS
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci    Pause for MICROSECONDS microseconds.
0f66f451Sopenharmony_ci*/
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci#include "toys.h"
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_civoid usleep_main(void)
0f66f451Sopenharmony_ci{
0f66f451Sopenharmony_ci  struct timespec tv;
0f66f451Sopenharmony_ci  long delay = atol(*toys.optargs);
0f66f451Sopenharmony_ci
0f66f451Sopenharmony_ci  tv.tv_sec = delay/1000000;
0f66f451Sopenharmony_ci  tv.tv_nsec = (delay%1000000) * 1000;
0f66f451Sopenharmony_ci  toys.exitval = !!nanosleep(&tv, NULL);
0f66f451Sopenharmony_ci}