process_utils

Documentation

Index

• Constants
• Variables
• func CheckPIDFile(pidFileName string) error
• func CreatePIDFile(pidFileName string) error
• func GetPIDFromFile(pidFileName string) (int, error)
• func IsProcessAlive(pid int) (bool, error)
• func StopProcess(pidFile string) (int, error)
• type ProcessState
  • func ProcessStatus(pidFile string) ProcessState
  • func (procState ProcessState) String() string

Constants

const (
	ProcessRunningCode = iota
	ProcessStoppedCode
	ProcessDeadCode
)

Variables

var (
	ProcStateRunning = ProcessState{
		Code:        ProcessRunningCode,
		ColorSprint: color.New(color.FgGreen).SprintFunc(),
		Status:      "RUNNING"}
	ProcStateStopped = ProcessState{
		Code:        ProcessStoppedCode,
		ColorSprint: color.New(color.FgYellow).SprintFunc(),
		Status:      "NOT RUNNING"}
	ProcStateDead = ProcessState{
		Code:        ProcessDeadCode,
		ColorSprint: color.New(color.FgRed).SprintFunc(),
		Status:      "ERROR. The process is dead"}
)

Functions

func CheckPIDFile

func CheckPIDFile(pidFileName string) error

CheckPIDFile checks that the process PID file exists and is readable. Or process is already exist. Removes PID file if process is dead.

func CreatePIDFile

func CreatePIDFile(pidFileName string) error

CreatePIDFile checks that the instance PID file is absent or deprecated and creates a new one. Returns an error on failure.

func GetPIDFromFile

func GetPIDFromFile(pidFileName string) (int, error)

GetPIDFromFile returns PID from the PIDFile.

func IsProcessAlive

func IsProcessAlive(pid int) (bool, error)

IsProcessAlive checks if the process is alive.

func StopProcess

func StopProcess(pidFile string) (int, error)

StopProcess stops the process by pidFile.

Types

type ProcessState

type ProcessState struct {
	Code        int
	ColorSprint func(a ...interface{}) string
	Status      string
	PID         int
}

func ProcessStatus

func ProcessStatus(pidFile string) ProcessState

ProcessStatus returns the status of the process.

func (ProcessState) String

func (procState ProcessState) String() string

String makes a string from ProcessState.