ytsync/redisdb/redisdb.go

63 lines
1.1 KiB
Go

package redisdb
import (
"time"
"github.com/lbryio/lbry.go/errors"
"github.com/garyburd/redigo/redis"
)
const (
redisHashKey = "ytsync"
redisSyncedVal = "t"
)
type DB struct {
pool *redis.Pool
}
func New() *DB {
var r DB
r.pool = &redis.Pool{
MaxIdle: 3,
IdleTimeout: 5 * time.Minute,
Dial: func() (redis.Conn, error) { return redis.Dial("tcp", ":6379") },
TestOnBorrow: func(c redis.Conn, t time.Time) error {
if time.Since(t) < time.Minute {
return nil
}
_, err := c.Do("PING")
return err
},
}
return &r
}
func (r DB) IsPublished(id string) (bool, error) {
conn := r.pool.Get()
defer conn.Close()
alreadyPublished, err := redis.String(conn.Do("HGET", redisHashKey, id))
if err != nil && err != redis.ErrNil {
return false, errors.Prefix("redis error", err)
}
if alreadyPublished == redisSyncedVal {
return true, nil
}
return false, nil
}
func (r DB) SetPublished(id string) error {
conn := r.pool.Get()
defer conn.Close()
_, err := redis.Bool(conn.Do("HSET", redisHashKey, id, redisSyncedVal))
if err != nil {
return errors.Prefix("redis error", err)
}
return nil
}