forked from mirror/redis
85 lines
1.3 KiB
Go
85 lines
1.3 KiB
Go
package redis
|
|
|
|
type PipelineClient struct {
|
|
*Client
|
|
}
|
|
|
|
func (c *Client) PipelineClient() (*PipelineClient, error) {
|
|
return &PipelineClient{
|
|
Client: &Client{
|
|
BaseClient: &BaseClient{
|
|
ConnPool: c.ConnPool,
|
|
InitConn: c.InitConn,
|
|
reqs: make([]Req, 0),
|
|
},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func (c *Client) Pipelined(do func(*PipelineClient)) ([]Req, error) {
|
|
pc, err := c.PipelineClient()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer pc.Close()
|
|
|
|
do(pc)
|
|
|
|
return pc.RunQueued()
|
|
}
|
|
|
|
func (c *PipelineClient) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (c *PipelineClient) DiscardQueued() {
|
|
c.reqsMtx.Lock()
|
|
c.reqs = c.reqs[:0]
|
|
c.reqsMtx.Unlock()
|
|
}
|
|
|
|
func (c *PipelineClient) RunQueued() ([]Req, error) {
|
|
c.reqsMtx.Lock()
|
|
reqs := c.reqs
|
|
c.reqs = make([]Req, 0)
|
|
c.reqsMtx.Unlock()
|
|
|
|
if len(reqs) == 0 {
|
|
return []Req{}, nil
|
|
}
|
|
|
|
conn, err := c.conn()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = c.RunReqs(reqs, conn)
|
|
if err != nil {
|
|
c.ConnPool.Remove(conn)
|
|
return nil, err
|
|
}
|
|
|
|
c.ConnPool.Add(conn)
|
|
return reqs, nil
|
|
}
|
|
|
|
func (c *PipelineClient) RunReqs(reqs []Req, conn *Conn) error {
|
|
err := c.WriteReq(conn, reqs...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
reqsLen := len(reqs)
|
|
for i := 0; i < reqsLen; i++ {
|
|
req := reqs[i]
|
|
val, err := req.ParseReply(conn.Rd)
|
|
if err != nil {
|
|
req.SetErr(err)
|
|
} else {
|
|
req.SetVal(val)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|