reaper

Documentation

Overview

Package reaper implements zombie process reaper with notifications.

Index

• func Notify(ch chan<- ProcessInfo) bool
• func ProcessWaitWrapper(usingReaper bool, notifyCh <-chan ProcessInfo, proc *os.Process) error
• func Run()
• func Shutdown()
• func Stop(ch chan<- ProcessInfo)
• func WaitWrapper(usingReaper bool, notifyCh <-chan ProcessInfo, cmd *exec.Cmd) error
• type ExitError
  • func (exitError *ExitError) Error() string
• type ProcessInfo

Functions

func Notify

func Notify(ch chan<- ProcessInfo) bool

Notify causes reaper to deliver notifications about reaped zombies.

If Notify returns false, reaper is not running, and Notify does nothing.

func ProcessWaitWrapper

func ProcessWaitWrapper(usingReaper bool, notifyCh <-chan ProcessInfo, proc *os.Process) error

ProcessWaitWrapper emulates os/exec.Process.Wait() when reaper is running. It is equivalent to WaitWrapper

ProcessWaitWrapper(true, proc) should be equivalent to proc.Wait().

func Run

func Run()

Run launches loop for the zombie process reaper.

func Shutdown

func Shutdown()

Shutdown stops the process reaper.

func Stop

func Stop(ch chan<- ProcessInfo)

Stop sending notifications to the channel.

func WaitWrapper

func WaitWrapper(usingReaper bool, notifyCh <-chan ProcessInfo, cmd *exec.Cmd) error

WaitWrapper emulates os/exec.Command.Wait() when reaper is running.

WaitWrapper(true, cmd) should be equivalent to cmd.Wait().

Types

type ExitError

type ExitError struct {
	ExitCode int
}

ExitError is raised when exit status is not equal to 0.

func (*ExitError) Error

func (exitError *ExitError) Error() string

Error implements error interface.

type ProcessInfo

type ProcessInfo struct {
	Pid    int
	Status syscall.WaitStatus
}

ProcessInfo describes reaped zombie process.