From cf7a05f80f68b5b1c8bcc0089679dd497cec2506 Mon Sep 17 00:00:00 2001
From: =Corey Hulen <corey@hulen.com>
Date: Sun, 14 Jun 2015 23:53:32 -0800
Subject: first commit

---
 .../_workspace/src/gopkg.in/redis.v2/pipeline.go   | 91 ++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 Godeps/_workspace/src/gopkg.in/redis.v2/pipeline.go

(limited to 'Godeps/_workspace/src/gopkg.in/redis.v2/pipeline.go')

diff --git a/Godeps/_workspace/src/gopkg.in/redis.v2/pipeline.go b/Godeps/_workspace/src/gopkg.in/redis.v2/pipeline.go
new file mode 100644
index 000000000..540d6c51d
--- /dev/null
+++ b/Godeps/_workspace/src/gopkg.in/redis.v2/pipeline.go
@@ -0,0 +1,91 @@
+package redis
+
+// Not thread-safe.
+type Pipeline struct {
+	*Client
+
+	closed bool
+}
+
+func (c *Client) Pipeline() *Pipeline {
+	return &Pipeline{
+		Client: &Client{
+			baseClient: &baseClient{
+				opt:      c.opt,
+				connPool: c.connPool,
+
+				cmds: make([]Cmder, 0),
+			},
+		},
+	}
+}
+
+func (c *Client) Pipelined(f func(*Pipeline) error) ([]Cmder, error) {
+	pc := c.Pipeline()
+	if err := f(pc); err != nil {
+		return nil, err
+	}
+	cmds, err := pc.Exec()
+	pc.Close()
+	return cmds, err
+}
+
+func (c *Pipeline) Close() error {
+	c.closed = true
+	return nil
+}
+
+func (c *Pipeline) Discard() error {
+	if c.closed {
+		return errClosed
+	}
+	c.cmds = c.cmds[:0]
+	return nil
+}
+
+// Exec always returns list of commands and error of the first failed
+// command if any.
+func (c *Pipeline) Exec() ([]Cmder, error) {
+	if c.closed {
+		return nil, errClosed
+	}
+
+	cmds := c.cmds
+	c.cmds = make([]Cmder, 0)
+
+	if len(cmds) == 0 {
+		return []Cmder{}, nil
+	}
+
+	cn, err := c.conn()
+	if err != nil {
+		setCmdsErr(cmds, err)
+		return cmds, err
+	}
+
+	if err := c.execCmds(cn, cmds); err != nil {
+		c.freeConn(cn, err)
+		return cmds, err
+	}
+
+	c.putConn(cn)
+	return cmds, nil
+}
+
+func (c *Pipeline) execCmds(cn *conn, cmds []Cmder) error {
+	if err := c.writeCmd(cn, cmds...); err != nil {
+		setCmdsErr(cmds, err)
+		return err
+	}
+
+	var firstCmdErr error
+	for _, cmd := range cmds {
+		if err := cmd.parseReply(cn.rd); err != nil {
+			if firstCmdErr == nil {
+				firstCmdErr = err
+			}
+		}
+	}
+
+	return firstCmdErr
+}
-- 
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