Mercurial > hg > toybox
diff toys/usleep.c @ 648:131571cf708c
Adding usleep
author | Elie De Brauwer <eliedebrauwer@gmail.com> |
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date | Wed, 15 Aug 2012 12:53:54 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toys/usleep.c Wed Aug 15 12:53:54 2012 +0200 @@ -0,0 +1,32 @@ +/* vi: set sw=4 ts=4: + * + * usleep.c - Wait for a number of microseconds. + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * No standard. + +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); + +}