Using Redis to do task queues (Golang)

This is a creation in Article, where the information may have evolved or changed. In the previous article with pure go in the native simulation of the next distributed queue of things. This complements the Redis queue section.
The following three questions need to be addressed in the Redis queue:

1. Queue Building
Use Redis's rpush/lpop to solve

2. Parameter Passing/parsing
The client resolves the restore by depositing the JOSN parameter on the redis,server side.

3. Connection pooling

Redigo support for Redis connection pooling

The following code is a concrete solution to the implementation:

Redis does background task queue//author:xiong Chuan liang//date:2015-3-25package mainimport ("bytes" "Encoding/json" "Errors" "FMT" " Time "" Github.com/garyburd/redigo/redis ") func main () {r, Err: = Newredispool (" "," ") if err! = Nil {fmt. PRINTLN (Err) return}//the job into queue R. Enqueue ()//Remove two jobr.getjob () r.getjob ()}type redispool struct {pool *redis in turn. Pool}func newredispool (server, password string) (*redispool, error) {if Server = = "" {Server = ": 6379"}pool: = &redis. pool{maxidle:3,idletimeout:240 * time. Second,dial:func () (Redis. Conn, error) {c, err: = Redis. Dial ("TCP", server) if err! = Nil {return nil, err}if password! = "" {if _, err: = C.do ("AUTH", password); Err! = Nil {c.close () return nil, Err}}return C, Err},testonborrow:func (c Redis. Conn, T time. Time) Error {_, Err: = C.do ("PING") return Err},}return &redispool{pool}, Nil}type Job struct {Class string ' JSO  N: "Class" ' Args []interface{} ' json: ' args ' '}//impersonate client func (R *redispool) Enqueue () error {c: = R.pool.get () defer c.close () j : = &job{}j.class = "mail" J.args = append (J.args, "xcl_168@aliyun.com", "" "," Body ", 2, True) J2: = &job{}j2. Class = "Log" J2. Args = Append (J2. Args, "Ccc.log", "Ddd.log", []int{222, 333}) for _, V: = range []*job{j, j2} {b, err: = json. Marshal (v) if err! = Nil {return err}_, err = c.do ("Rpush", "queue", B) if err! = Nil {return err}}fmt. Println ("[Enqueue ()] succeed!") Return nil}//Simulation Job Serverfunc (R *redispool) getjob () error {count, err: = R.queuedjobcount () if err! = Nil | | count = = 0 { return errors. New ("no Job.")} Fmt. Println ("[Getjob ()] Jobs count:", count) C: = R.pool.get () defer c.close () for I: = 0; I < int (count); i++ {reply, err: = C.do ("Lpop", "queue") if err! = Nil {return Err}var j Jobdecoder: = json. Newdecoder (bytes. Newreader (reply. ( []byte)]) If err: = decoder. Decode (&AMP;J); Err! = Nil {return err}fmt. Println ("[Getjob ()]", J.class, ":", J.args)}return Nil}func (R *redispool) Queuedjobcount () (int, error) {c: = R.POOL.G ET () defer c.close () lenqueue, err: = C.do ("Llen", "queue") if err! = Nil {return 0, err}count, OK: = Lenqueue. (Int64) If!ok {return 0, errors. New ("Type conversion error!")} return int (count), nil}/* run result: [Enqueue ()] succeed! [Getjob ()] Jobs count:2[getjob ()] Mail: [xcl_168@aliyun.com body 2 true][getjob ()] Log: [Ccc.log ddd.log [222 333]][root@xc Los src]#*/

You can see that the go has been able to get parameters. Are some of the most basic things.

Mail:xcl_168@aliyun.com

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