1 package xmpp

     2 

     3 // Code to generate unique IDs for outgoing messages.

     4 

     5 import (

     6 	"fmt"

     7 )

     8 

     9 var id <-chan string

    10 

    11 func init() {

    12 	// Start the unique id generator.

    13 	idCh := make(chan string)

    14 	id = idCh

    15 	go func(ch chan<- string) {

    16 		id := int64(1)

    17 		for {

    18 			str := fmt.Sprintf("id_%d", id)

    19 			ch <- str

    20 			id++

    21 		}

    22 	}(idCh)

    23 }

    24 

    25 // This function may be used as a convenient way to generate a unique

    26 // id for an outgoing iq, message, or presence stanza.

    27 func NextId() string {

    28 	return <-id

    29 }