Initial commit.

multi.go

@@ -0,0 +1,48 @@
+package redis
+
+type MultiClient struct {
+	*Client
+	reqs []Req
+}
+
+func NewMultiClient(connect connectFunc, disconnect disconnectFunc) *MultiClient {
+	return &MultiClient{
+		Client: NewClient(connect, disconnect),
+		reqs:   make([]Req, 0),
+	}
+
+}
+
+func (c *MultiClient) queueReq(req Req) {
+	c.reqs = append(c.reqs, req)
+}
+
+func (c *MultiClient) run(req Req) {
+	c.queueReq(req)
+}
+
+func (c *MultiClient) Exec() ([]Req, error) {
+	c.mtx.Lock()
+	defer c.mtx.Unlock()
+
+	reqs := c.reqs
+	c.reqs = make([]Req, 0)
+
+	multiReq := make([]byte, 0, 8192)
+	multiReq = append(multiReq, PackReq([]string{"MULTI"})...)
+	for _, req := range reqs {
+		multiReq = append(multiReq, req.Req()...)
+	}
+	multiReq = append(multiReq, PackReq([]string{"EXEC"})...)
+
+	buf, err := c.WriteRead(multiReq)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, req := range reqs {
+		req.ParseReply(buf)
+	}
+
+	return reqs, nil
+}