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scheduled.go
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scheduled.go
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package workers
import (
"strings"
"time"
"github.com/garyburd/redigo/redis"
)
type scheduled struct {
keys []string
closed bool
exit chan bool
}
func (s *scheduled) start() {
go s.poll(true)
}
func (s *scheduled) quit() {
s.closed = true
}
func (s *scheduled) poll(continuing bool) {
for {
if s.closed {
return
}
conn := Config.Pool.Get()
now := time.Now().Unix()
for _, key := range s.keys {
key = Config.Namespace + key
for {
messages, _ := redis.Strings(conn.Do("zrangebyscore", key, "-inf", now, "limit", 0, 1))
if len(messages) == 0 {
break
}
message, _ := NewMsg(messages[0])
if removed, err := redis.Int(conn.Do("zrem", key, messages[0])); removed == 1 && err == nil {
queue, _ := message.Get("queue").String()
queue = strings.TrimPrefix(queue, Config.Namespace)
conn.Do("lpush", Config.Namespace+"queue:"+queue, message.ToJson())
}
}
}
conn.Close()
if continuing {
time.Sleep(time.Duration(Config.PollInterval) * time.Millisecond)
// s.poll(true)
}
}
}
func newScheduled(keys ...string) *scheduled {
return &scheduled{keys, false, make(chan bool)}
}