exec

Documentation

Overview

Package exec provides an abstraction around package os' Process implementation for easier testing.

Index

• type ExitStatus
• type Process
  • func FindProcess(pid int) (Process, error)
  • func NewSleepProcess(dura, delay time.Duration, pid int) Process
  • func StartProcess(argv []string) (Process, error)

Types

type ExitStatus

type ExitStatus struct {
	PID   int
	Code  int // -1 for interrupt
	Error error
}

ExitStatus is a process' exit status.

type Process

type Process interface {
	PID() int
	Signal(os.Signal) error
	Kill() error
	Wait() ExitStatus
}

Process describes a command process.

func FindProcess

func FindProcess(pid int) (Process, error)

FindProcess creates a new Process from an existing process ID.

func NewSleepProcess

func NewSleepProcess(dura, delay time.Duration, pid int) Process

NewSleepProcess creates a process that only idles for a duration. It is used for testing. If delay is larger than 0, then the process will sleep for that delay before exiting, unless it is SIGKILLed.

func StartProcess

func StartProcess(argv []string) (Process, error)

StartProcess creates a new command process on the system.