Delete VAX/OS2/DOS/AMIGA code from GNU Make

This commit is contained in:
Justine Tunney 2022-03-18 21:37:41 -07:00
parent 14e192e5ba
commit 10a766ebd0
463 changed files with 2517 additions and 201015 deletions

41
libc/calls/getloadavg.c Normal file
View file

@ -0,0 +1,41 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/sysinfo.h"
#include "libc/dce.h"
#include "libc/sysv/errfuns.h"
/**
* Returns system load average.
* @note work in progress
*/
int getloadavg(double *a, int n) {
/* cat /proc/loadavg */
int i;
struct sysinfo si;
if (!n) return 0;
if (n < 0) return einval();
if (IsWindows()) return enosys(); /* TODO(jart) */
if (sysinfo(&si) == -1) return -1;
if (n > 3) n = 3;
for (i = 0; i < n; i++) {
a[i] = 1. / 65536 * si.loads[i];
}
return n;
}