monitor

Documentation

Overview

Package monitor provides utilities for launching goroutines and being informed when they exit.

Index

• func Monitor(f func() error) <-chan Event
• type Event
• type EventType

Functions

func Monitor

func Monitor(f func() error) <-chan Event

Runs a function in a goroutine. When the goroutine exits, send a single event on the returned channel.

Types

type Event

type Event struct {
	Type  EventType
	Panic interface{} // If the goroutine panicked, this is the panic value.
	Error error       // The value returned by the function.
}

A goroutine monitoring event.

type EventType

type EventType int

const (
	NormalExit  EventType = iota // The goroutine exited normally.
	PanicExit                    // The goroutine panicked.
	RuntimeExit                  // The goroutine was terminated via runtime.Goexit().
)