mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
3a9cac4892
- Fix mkdeps.com out of memory error - Remove static memory from __get_cpu_count() - Add support for passing hyphen to cat in cocmd - Change more ZipOS errors from ENOTSUP to EROFS - Specify mem_unit in sysinfo() output on BSD OSes
71 lines
3.1 KiB
C
71 lines
3.1 KiB
C
/*-*- 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/syscall_support-nt.internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/fmt/conv.h"
|
|
#include "libc/macros.internal.h"
|
|
#include "libc/nt/accounting.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/thread/thread.h"
|
|
|
|
#define FT(x) (x.dwLowDateTime | (uint64_t)x.dwHighDateTime << 32)
|
|
|
|
static int cpus;
|
|
static double load;
|
|
static pthread_spinlock_t lock;
|
|
static struct NtFileTime idle1, kern1, user1;
|
|
|
|
textwindows int sys_getloadavg_nt(double *a, int n) {
|
|
int i, rc;
|
|
uint64_t elapsed, used;
|
|
struct NtFileTime idle, kern, user;
|
|
pthread_spin_lock(&lock);
|
|
if (GetSystemTimes(&idle, &kern, &user)) {
|
|
elapsed = (FT(kern) - FT(kern1)) + (FT(user) - FT(user1));
|
|
if (elapsed) {
|
|
used = elapsed - (FT(idle) - FT(idle1));
|
|
load = (double)used / elapsed * cpus;
|
|
load = MIN(MAX(load, 0), cpus * 2);
|
|
idle1 = idle, kern1 = kern, user1 = user;
|
|
}
|
|
for (i = 0; i < n; ++i) {
|
|
a[i] = load;
|
|
}
|
|
rc = n;
|
|
} else {
|
|
rc = __winerr();
|
|
}
|
|
pthread_spin_unlock(&lock);
|
|
return rc;
|
|
}
|
|
|
|
static textstartup void sys_getloadavg_nt_init(void) {
|
|
double a[3];
|
|
if (IsWindows()) {
|
|
load = 1;
|
|
cpus = __get_cpu_count() / 2;
|
|
cpus = MAX(1, cpus);
|
|
GetSystemTimes(&idle1, &kern1, &user1);
|
|
}
|
|
}
|
|
|
|
const void *const sys_getloadavg_nt_ctor[] initarray = {
|
|
sys_getloadavg_nt_init,
|
|
};
|