bilibili-backup/app/service/main/resource/dao/ads/redis.go
2019-04-22 02:59:20 +00:00

95 lines
2.2 KiB
Go

package ads
import (
"context"
"fmt"
"go-common/library/cache/redis"
"go-common/library/log"
"github.com/dgryski/go-farm"
)
const (
_prefixBuvid = "buvid:%d"
)
func (d *Dao) keyBuvid(buvid string) (key string) {
num := int64(farm.Hash32([]byte(buvid)))
key = fmt.Sprintf(_prefixBuvid, num%d.c.HashNum)
return
}
// ExistsAuth if existes buvid in redis.
func (d *Dao) ExistsAuth(c context.Context, key string) (ok bool, err error) {
var conn = d.redis.Get(c)
defer conn.Close()
if ok, err = redis.Bool(conn.Do("EXISTS", key)); err != nil {
log.Error("EXISTS key(%s), error(%v)", key, err)
}
return
}
// BuvidCount get buvid count info from redis.
func (d *Dao) BuvidCount(c context.Context, faid int64, buvid string) (res int64, err error) {
var (
key = d.keyBuvid(buvid)
conn = d.redis.Get(c)
field = faid
)
defer conn.Close()
if res, err = redis.Int64(conn.Do("HGET", key, field)); err != nil {
if err != redis.ErrNil {
log.Error("BuvidCount conn.Send HGET(%v, %v) error(%v)", key, field, err)
return
}
err = nil
}
return
}
// AddBuvidCount add buvid count info into redis.
func (d *Dao) AddBuvidCount(c context.Context, buvidCounts map[string]map[int64]int64) (err error) {
var (
key string
count int
conn = d.redis.Get(c)
faid int64
playCount int64
ok bool
)
defer conn.Close()
for buvid, buvidCount := range buvidCounts {
key = d.keyBuvid(buvid)
if ok, err = d.ExistsAuth(c, key); err != nil {
log.Error("EXISTS key(%s) error(%v)", key, err)
return
}
for faid, playCount = range buvidCount {
if err = conn.Send("HSET", key, faid, playCount); err != nil {
log.Error("HSET key(%s) field(%d) playCount(%d) error(%v)", key, faid, playCount, err)
return
}
count++
}
if !ok {
if err = conn.Send("EXPIRE", key, d.expire); err != nil {
log.Error("EXPIRE key(%s) expire(%v) error(%v)", key, d.expire, err)
return
}
count++
}
}
if err = conn.Flush(); err != nil {
log.Error("BuvidCount conn.Flush error(%v)", err)
return
}
for i := 0; i < count; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("BuvidCount conn.Receive error(%v)", err)
return
}
}
return
}