system

Documentation

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 Fexecve(fd uintptr, args []string, env []string) error
• func GetSubreaper() (int, error)
• func Mkdirat(dir *os.File, path string, mode uint32) error
• func Openat(dir *os.File, path string, flags int, mode uint32) (*os.File, 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 Fexecve

func Fexecve(fd uintptr, args []string, env []string) error

func GetSubreaper

func GetSubreaper() (int, error)

GetSubreaper returns the subreaper setting for the calling process

func Mkdirat

func Mkdirat(dir *os.File, path string, mode uint32) error

func Openat

func Openat(dir *os.File, path string, flags int, mode uint32) (*os.File, error)

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.