// OpenConnection opens and returns a new connection
func OpenConnection(tag, network, address string, db int) *redisConnection {
redisClient := redis.NewClient(&redis.Options{
Network: network,
Addr: address,
DB: int64(db),
})
name := fmt.Sprintf("%s-%s", tag, uniuri.NewLen(6))
connection := &redisConnection{
Name: name,
heartbeatKey: strings.Replace(connectionHeartbeatTemplate, phConnection, name, 1),
queuesKey: strings.Replace(connectionQueuesTemplate, phConnection, name, 1),
redisClient: redisClient,
}
if !connection.updateHeartbeat() { // checks the connection
log.Panicf("rmq connection failed to update heartbeat %s", connection)
}
// add to connection set after setting heartbeat to avoid race with cleaner
redisErrIsNil(redisClient.SAdd(connectionsKey, name))
go connection.heartbeat()
// log.Printf("rmq connection connected to %s %s:%s %d", name, network, address, db)
return connection
}
func (queue *redisQueue) addConsumer(tag string) string {
if queue.deliveryChan == nil {
log.Panicf("rmq queue failed to add consumer, call StartConsuming first! %s", queue)
}
name := fmt.Sprintf("%s-%s", tag, uniuri.NewLen(6))
// add consumer to list of consumers of this queue
if redisErrIsNil(queue.redisClient.SAdd(queue.consumersKey, name)) {
log.Panicf("rmq queue failed to add consumer %s %s", queue, tag)
}
// log.Printf("rmq queue added consumer %s %s", queue, name)
return name
}