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lua: redis support expire #36

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lua: redis support expire #36

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T-Mac1991 Mar 4, 2021
86b0a7b
lua: redis support expire
T-Mac1991 Mar 4, 2021
d7f876e
Update README.md
T-Mac1991 Mar 4, 2021
1bf66be
fixed: redis expire not work
T-Mac1991 Mar 9, 2021
26a0f26
optimization: use tuple to swap value
T-Mac1991 Mar 9, 2021
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4 changes: 2 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -173,9 +173,9 @@ server_id=1 # 配置 MySQL replaction 需要定义，不要和 go-mysql-transfer

# 更新日志

**v1.0.0 bate**
**v1.0.0 beta**

* 9.17 初始化提交bate版本
* 9.17 初始化提交beta版本

**v1.0.1 release**

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7 changes: 7 additions & 0 deletions service/endpoint/redis.go
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Expand Up @@ -22,6 +22,7 @@ import (
"log"
"strings"
"sync"
"time"

"github.com/go-redis/redis"
"github.com/pingcap/errors"
Expand Down Expand Up @@ -265,6 +266,12 @@ func (s *RedisEndpoint) preparePipe(resp *model.RedisRespond, pipe redis.Cmdable
val := redis.Z{Score: resp.Score, Member: resp.Val}
pipe.ZAdd(resp.Key, val)
}
default:
if resp.Action == "expire" {
vv, _ := resp.Val.(float64)
var s int64 = int64(vv) * 1000000000 //trans to ns
pipe.Expire(resp.Key, time.Duration(s))
}
}
}

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18 changes: 17 additions & 1 deletion service/luaengine/redis_actuator.go
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Expand Up @@ -19,7 +19,7 @@ package luaengine

import (
"github.com/siddontang/go-mysql/canal"
"github.com/yuin/gopher-lua"
lua "github.com/yuin/gopher-lua"

"go-mysql-transfer/global"
"go-mysql-transfer/model"
Expand Down Expand Up @@ -54,6 +54,8 @@ var _redisModuleApi = map[string]lua.LGFunction{

"ZADD": redisZAdd,
"ZREM": redisZRem,

"EXPIRE": redisExpire,
}

func rawOldRow(L *lua.LState) int {
Expand All @@ -62,6 +64,14 @@ func rawOldRow(L *lua.LState) int {
return 1
}

func redisExpire(L *lua.LState) int {
key := L.CheckString(1)
val := L.CheckAny(2)
ret := L.GetGlobal(_globalRET)
L.SetTable(ret, lua.LString("expire_0_"+key), val)
return 0
}

func redisSet(L *lua.LState) int {
key := L.CheckString(1)
val := L.CheckAny(2)
Expand Down Expand Up @@ -224,6 +234,12 @@ func DoRedisOps(input map[string]interface{}, previous map[string]interface{}, a
ls = append(ls, resp)
})

var lsLen = len(ls)
if lsLen > 1 && ls[0].Action == "expire" {
// "expire" it will not work when the key not exist, swap it
ls[0], ls[lsLen-1] = ls[lsLen-1], ls[0]
}

return ls, nil
}

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