package system

import "github.com/opencontainers/runc/libcontainer/system"

Index ¶

• func ClearKeepCaps() error
• func ClearRlimitNofileCache(lim *syscall.Rlimit)
• func Copy(dst io.Writer, src io.Reader) (copied int64, err error)
• func Exec(cmd string, args []string, env []string) error
• func ExecutableMemfd(comment string, flags int) (*os.File, error)
• func GetSubreaper() (int, error)
• func SetKeepCaps() error
• func SetLinuxPersonality(personality int) error
• func SetParentDeathSignal(sig uintptr) error
• func SetSubreaper(i int) error
• func Setctty() error
• type ParentDeathSignal
• func GetParentDeathSignal() (ParentDeathSignal, error)
• func (p ParentDeathSignal) Restore() error
• func (p ParentDeathSignal) Set() error
• type Stat_t
• func Stat(pid int) (stat Stat_t, err error)
• type State
• func (s State) String() string

Functions ¶

func ClearKeepCaps ¶

func ClearKeepCaps() error

func ClearRlimitNofileCache ¶

func ClearRlimitNofileCache(lim *syscall.Rlimit)

ClearRlimitNofileCache clears go runtime's nofile rlimit cache. The argument is process RLIMIT_NOFILE values. Relies on go.dev/cl/588076.

func Copy ¶

func Copy(dst io.Writer, src io.Reader) (copied int64, err error)

Copy is like io.Copy except it uses sendfile(2) if the source and sink are both (*os.File) as an optimisation to make copies faster.

func Exec ¶

func Exec(cmd string, args []string, env []string) error

func ExecutableMemfd ¶

func ExecutableMemfd(comment string, flags int) (*os.File, error)

func GetSubreaper ¶

func GetSubreaper() (int, error)

GetSubreaper returns the subreaper setting for the calling process

func SetKeepCaps ¶

func SetKeepCaps() error

func SetLinuxPersonality ¶

func SetLinuxPersonality(personality int) error

SetLinuxPersonality sets the Linux execution personality. For more information see the personality syscall documentation. checkout getLinuxPersonalityFromStr() from libcontainer/specconv/spec_linux.go for type conversion.

func SetParentDeathSignal ¶

func SetParentDeathSignal(sig uintptr) error

func SetSubreaper ¶

func SetSubreaper(i int) error

SetSubreaper sets the value i as the subreaper setting for the calling process

func Setctty ¶

func Setctty() error

Types ¶

type ParentDeathSignal ¶

type ParentDeathSignal int

func GetParentDeathSignal ¶

func GetParentDeathSignal() (ParentDeathSignal, error)

func (ParentDeathSignal) Restore ¶

func (p ParentDeathSignal) Restore() error

func (ParentDeathSignal) Set ¶

func (p ParentDeathSignal) Set() error

type Stat_t ¶

type Stat_t struct {
	// Name is the command run by the process.
	Name string

	// State is the state of the process.
	State State

	// StartTime is the number of clock ticks after system boot (since
	// Linux 2.6).
	StartTime uint64
}

Stat_t represents the information from /proc/[pid]/stat, as described in proc(5) with names based on the /proc/[pid]/status fields.

func Stat ¶

func Stat(pid int) (stat Stat_t, err error)

Stat returns a Stat_t instance for the specified process.

type State ¶

type State rune

State is the status of a process.

const (
	Dead        State = 'X'
	DiskSleep   State = 'D'
	Running     State = 'R'
	Sleeping    State = 'S'
	Stopped     State = 'T'
	TracingStop State = 't'
	Zombie      State = 'Z'
	Parked      State = 'P'
	Idle        State = 'I'
)

func (State) String ¶

func (s State) String() string

String forms of the state from proc(5)'s documentation for /proc/[pid]/status' "State" field.

Source Files ¶

linux.go proc.go rlimit_linux.go

Directories ¶