package main

import (
	"encoding/xml"
)

// ProcessList is a map of processes' names and its statuses.
type ProcessList map[string]bool

// MarshalXML implements XML Marshaler interface for a ProcessList.
func (l *ProcessList) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
	if len(*l) == 0 {
		return nil
	}

	if err := e.EncodeToken(start); err != nil {
		return err
	}

	for key, val := range *l {
		e.Encode(struct {
			XMLName xml.Name
			Name    string `xml:"name,attr"`
			IsUp    bool   `xml:",chardata"`
		}{
			XMLName: xml.Name{Local: "Process"},
			Name:    key,
			IsUp:    val})
	}

	return e.EncodeToken(start.End())
}