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67 lines
1.6 KiB
67 lines
1.6 KiB
// Copyright 2018 Tobias Klauser
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build darwin || dragonfly || freebsd || netbsd || openbsd
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// +build darwin dragonfly freebsd netbsd openbsd
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package numcpus
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import (
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"runtime"
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"golang.org/x/sys/unix"
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)
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func getConfigured() (int, error) {
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n, err := unix.SysctlUint32("hw.ncpu")
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return int(n), err
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}
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func getKernelMax() (int, error) {
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if runtime.GOOS == "freebsd" {
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n, err := unix.SysctlUint32("kern.smp.maxcpus")
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return int(n), err
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}
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return 0, ErrNotSupported
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}
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func getOffline() (int, error) {
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return 0, ErrNotSupported
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}
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func getOnline() (int, error) {
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var n uint32
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var err error
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switch runtime.GOOS {
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case "netbsd", "openbsd":
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n, err = unix.SysctlUint32("hw.ncpuonline")
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if err != nil {
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n, err = unix.SysctlUint32("hw.ncpu")
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}
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default:
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n, err = unix.SysctlUint32("hw.ncpu")
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}
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return int(n), err
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}
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func getPossible() (int, error) {
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n, err := unix.SysctlUint32("hw.ncpu")
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return int(n), err
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}
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func getPresent() (int, error) {
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n, err := unix.SysctlUint32("hw.ncpu")
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return int(n), err
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}
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