/* vi: set sw=4 ts=4: */ /* * alarm() for uClibc * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include "syscalls.h" #include <unistd.h> libc_hidden_proto(alarm) #ifdef __NR_alarm #define __NR___alarm __NR_alarm _syscall1(unsigned int, alarm, unsigned int, seconds); #else #include <sys/time.h> libc_hidden_proto(setitimer) 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 libc_hidden_def(alarm)