tklauser / go-sysconf

sysconf for Go, without using cgo
https://pkg.go.dev/github.com/tklauser/go-sysconf
BSD 3-Clause "New" or "Revised" License
141 stars 27 forks source link
bsd cgo getconf go golang linux posix sysconf sysconfig system-programming unix

go-sysconf

Go Reference GitHub Action Status

sysconf for Go, without using cgo or external binaries (e.g. getconf).

Supported operating systems: Linux, macOS, DragonflyBSD, FreeBSD, NetBSD, OpenBSD, Solaris/Illumos.

All POSIX.1 and POSIX.2 variables are supported, see References for a complete list.

Additionally, the following non-standard variables are supported on some operating systems:

Variable Supported on
SC_PHYS_PAGES Linux, macOS, FreeBSD, NetBSD, OpenBSD, Solaris/Illumos
SC_AVPHYS_PAGES Linux, OpenBSD, Solaris/Illumos
SC_NPROCESSORS_CONF Linux, macOS, FreeBSD, NetBSD, OpenBSD, Solaris/Illumos
SC_NPROCESSORS_ONLN Linux, macOS, FreeBSD, NetBSD, OpenBSD, Solaris/Illumos
SC_UIO_MAXIOV Linux

Usage

package main

import (
    "fmt"

    "github.com/tklauser/go-sysconf"
)

func main() {
    // get clock ticks, this will return the same as C.sysconf(C._SC_CLK_TCK)
    clktck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
    if err == nil {
        fmt.Printf("SC_CLK_TCK: %v\n", clktck)
    }
}

References