forked from RichardKnop/machinery
/
redis.go
61 lines (51 loc) · 1.33 KB
/
redis.go
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package common
import (
"time"
"github.com/gomodule/redigo/redis"
)
// RedisConnector ...
type RedisConnector struct{}
// NewPool returns a new pool of Redis connections
func (rc *RedisConnector) NewPool(socketPath, host, password string, db int) *redis.Pool {
return &redis.Pool{
MaxIdle: 3,
IdleTimeout: 240 * time.Second,
Dial: func() (redis.Conn, error) {
c, err := rc.open(socketPath, host, password, db)
if err != nil {
return nil, err
}
if db != 0 {
_, err = c.Do("SELECT", db)
}
if err != nil {
return nil, err
}
return c, err
},
// PINGs connections that have been idle more than 10 seconds
TestOnBorrow: func(c redis.Conn, t time.Time) error {
if time.Since(t) < time.Duration(10*time.Second) {
return nil
}
_, err := c.Do("PING")
return err
},
}
}
// Open a new Redis connection
func (rc *RedisConnector) open(socketPath, host, password string, db int) (redis.Conn, error) {
var opts = []redis.DialOption{
redis.DialDatabase(db),
redis.DialReadTimeout(15 * time.Second),
redis.DialWriteTimeout(15 * time.Second),
redis.DialConnectTimeout(15 * time.Second),
}
if password != "" {
opts = append(opts, redis.DialPassword(password))
}
if socketPath != "" {
return redis.Dial("unix", socketPath, opts...)
}
return redis.Dial("tcp", host, opts...)
}