From 6334e558ab33ee1e54ed33740881a2798c5915c2 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Wed, 21 Jan 2004 23:27:48 +0000 Subject: Split up syscalls.c, since it had grown to be quite large and ugly. -Erik --- libc/sysdeps/linux/common/alarm.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 libc/sysdeps/linux/common/alarm.c (limited to 'libc/sysdeps/linux/common/alarm.c') diff --git a/libc/sysdeps/linux/common/alarm.c b/libc/sysdeps/linux/common/alarm.c new file mode 100644 index 000000000..a0d6669f9 --- /dev/null +++ b/libc/sysdeps/linux/common/alarm.c @@ -0,0 +1,34 @@ +/* vi: set sw=4 ts=4: */ +/* + * alarm() for uClibc + * + * Copyright (C) 2000-2004 by Erik Andersen + * + * GNU Library General Public License (LGPL) version 2 or later. + */ + +#include "syscalls.h" +#include +#ifdef __NR_alarm +_syscall1(unsigned int, alarm, unsigned int, seconds); +#else +#include +unsigned int alarm(unsigned int seconds) +{ + struct itimerval old, new; + unsigned int retval; + + new.it_value.tv_usec = 0; + new.it_interval.tv_sec = 0; + new.it_interval.tv_usec = 0; + new.it_value.tv_sec = (long int) seconds; + if (setitimer(ITIMER_REAL, &new, &old) < 0) { + return 0; + } + retval = old.it_value.tv_sec; + if (old.it_value.tv_usec) { + ++retval; + } + return retval; +} +#endif -- cgit v1.2.3