/
redis_fetch.go
93 lines (69 loc) · 1.4 KB
/
redis_fetch.go
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package jobworker
import (
"github.com/rohan1020/retry"
"gopkg.in/redis.v3"
)
func FetchJob(binkey string) (out string, err error) {
defer func() {
if r := recover(); r != nil {
err, _ = r.(error)
}
}()
jid := GetPendingJids(binkey)
if jid == "" {
out = ""
return
}
out = GetJobInfo(binkey, jid)
MoveJidToProcessingSet(binkey, jid)
return
}
func GetPendingJids(binkey string) (val string) {
key := "job:" + binkey + ":" + "pending"
err := retry.Do(func() (err error) {
val, err = Redis_fetch.Client.SRandMember(key).Result()
if err == redis.Nil {
err = nil
val = ""
return
}
return
}, func() {
Redis_fetch.InitClient()
})
if err != nil {
panic(err)
}
return
}
func MoveJidToProcessingSet(binkey, jid string) (val string) {
key_pend := "job:" + binkey + ":" + "pending"
key_process := "job:" + binkey + ":" + "processing"
err := retry.Do(func() (err error) {
_, err = Redis_fetch.Client.SMove(key_pend, key_process, jid).Result()
return
}, func() {
Redis_fetch.InitClient()
})
if err != nil {
panic(err)
}
return
}
func GetJobInfo(binkey, jid string) (val string) {
key := "job:" + binkey + ":" + "args"
err := retry.Do(func() (err error) {
val, err = Redis_fetch.Client.HGet(key, jid).Result()
if err == redis.Nil {
err = nil
val = ""
}
return
}, func() {
Redis_fetch.InitClient()
})
if err != nil {
panic(err)
}
return
}