sys

Documentation

Index

• Constants
• Variables
• func CreateUnixSocket(path string) (net.Listener, error)
• func FMountat(dirfd uintptr, source, target, fstype string, flags uintptr, data string) error
• func ForceRemoveAll(path string) error
• func GetLocalListener(path string, uid, gid int) (net.Listener, error)
• func GetOOMScoreAdj(pid int) (int, error)
• func GetOpenFds(pid int) (int, error)
• func IsFifo(path string) (bool, error)
• func MkdirAllWithACL(path string, perm os.FileMode) error
• func RunningInUserNS() bool
• func RunningPrivileged() bool
• func RunningUnprivileged() bool
• func SetOOMScore(pid, score int) error
• func StatATimeAsTime(st *syscall.Stat_t) time.Time
• func StatAtime(st *syscall.Stat_t) syscall.Timespec
• func StatCtime(st *syscall.Stat_t) syscall.Timespec
• func StatMtime(st *syscall.Stat_t) syscall.Timespec

Constants

const (
	// OOMScoreMaxKillable is the maximum score keeping the process killable by the oom killer
	OOMScoreMaxKillable = -999
	// OOMScoreAdjMax is from OOM_SCORE_ADJ_MAX https://github.com/torvalds/linux/blob/master/include/uapi/linux/oom.h
	OOMScoreAdjMax = 1000
)

Variables

var EpollCreate1 = unix.EpollCreate1

EpollCreate1 is an alias for unix.EpollCreate1 Deprecated: use golang.org/x/sys/unix.EpollCreate1

var EpollCtl = unix.EpollCtl

EpollCtl is an alias for unix.EpollCtl Deprecated: use golang.org/x/sys/unix.EpollCtl

var EpollWait = unix.EpollWait

EpollWait is an alias for unix.EpollWait Deprecated: use golang.org/x/sys/unix.EpollWait

Functions

func CreateUnixSocket

func CreateUnixSocket(path string) (net.Listener, error)

CreateUnixSocket creates a unix socket and returns the listener

func FMountat

func FMountat(dirfd uintptr, source, target, fstype string, flags uintptr, data string) error

FMountat performs mount from the provided directory.

func ForceRemoveAll

func ForceRemoveAll(path string) error

ForceRemoveAll on unix is just a wrapper for os.RemoveAll

func GetLocalListener

func GetLocalListener(path string, uid, gid int) (net.Listener, error)

GetLocalListener returns a listener out of a unix socket.

func GetOOMScoreAdj

func GetOOMScoreAdj(pid int) (int, error)

GetOOMScoreAdj gets the oom score for a process

func GetOpenFds

func GetOpenFds(pid int) (int, error)

GetOpenFds returns the number of open fds for the process provided by pid

func IsFifo

func IsFifo(path string) (bool, error)

IsFifo checks if a file is a (named pipe) fifo if the file does not exist then it returns false

func MkdirAllWithACL

func MkdirAllWithACL(path string, perm os.FileMode) error

MkdirAllWithACL is a wrapper for os.MkdirAll on Unix systems.

func RunningInUserNS

func RunningInUserNS() bool

RunningInUserNS detects whether we are currently running in a user namespace. Originally copied from github.com/lxc/lxd/shared/util.go

func RunningPrivileged

func RunningPrivileged() bool

RunningPrivileged returns true if the effective user ID of the calling process is 0

func RunningUnprivileged

func RunningUnprivileged() bool

RunningUnprivileged returns true if the effective user ID of the calling process is not 0

func SetOOMScore

func SetOOMScore(pid, score int) error

SetOOMScore sets the oom score for the provided pid

func StatATimeAsTime

func StatATimeAsTime(st *syscall.Stat_t) time.Time

StatATimeAsTime returns st.Atim as a time.Time

func StatAtime

func StatAtime(st *syscall.Stat_t) syscall.Timespec

StatAtime returns the Atim

func StatCtime

func StatCtime(st *syscall.Stat_t) syscall.Timespec

StatCtime returns the Ctim

func StatMtime

func StatMtime(st *syscall.Stat_t) syscall.Timespec

StatMtime returns the Mtim