redis/go-redis
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Add PubSub support to Cluster client

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This commit is contained in:
Vladimir Mihailenco
2017-07-09 10:07:20 +03:00
parent 564772f045
commit 6060f097e1
7 changed files with 138 additions and 50 deletions
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38
redis.go
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@ -21,7 +21,23 @@ func (c *baseClient) String() string {
return fmt.Sprintf("Redis<%s db:%d>", c.getAddr(), c.opt.DB)
}
func (c *baseClient) conn() (*pool.Conn, bool, error) {
func (c *baseClient) newConn() (*pool.Conn, error) {
cn, err := c.connPool.NewConn()
if err != nil {
return nil, err
}
if !cn.Inited {
if err := c.initConn(cn); err != nil {
_ = c.connPool.CloseConn(cn)
return nil, err
}
}
return cn, nil
}
func (c *baseClient) getConn() (*pool.Conn, bool, error) {
cn, isNew, err := c.connPool.Get()
if err != nil {
return nil, false, err
@ -37,7 +53,7 @@ func (c *baseClient) conn() (*pool.Conn, bool, error) {
return cn, isNew, nil
}
func (c *baseClient) putConn(cn *pool.Conn, err error) bool {
func (c *baseClient) releaseConn(cn *pool.Conn, err error) bool {
if internal.IsBadConn(err, false) {
_ = c.connPool.Remove(cn)
return false
@ -112,7 +128,7 @@ func (c *baseClient) defaultProcess(cmd Cmder) error {
time.Sleep(internal.RetryBackoff(i, c.opt.MaxRetryBackoff))
}
cn, _, err := c.conn()
cn, _, err := c.getConn()
if err != nil {
cmd.setErr(err)
if internal.IsRetryableError(err) {
@ -123,7 +139,7 @@ func (c *baseClient) defaultProcess(cmd Cmder) error {
cn.SetWriteTimeout(c.opt.WriteTimeout)
if err := writeCmd(cn, cmd); err != nil {
c.putConn(cn, err)
c.releaseConn(cn, err)
cmd.setErr(err)
if internal.IsRetryableError(err) {
continue
@ -133,7 +149,7 @@ func (c *baseClient) defaultProcess(cmd Cmder) error {
cn.SetReadTimeout(c.cmdTimeout(cmd))
err = cmd.readReply(cn)
c.putConn(cn, err)
c.releaseConn(cn, err)
if err != nil && internal.IsRetryableError(err) {
continue
}
@ -179,14 +195,14 @@ func (c *baseClient) pipelineExecer(p pipelineProcessor) pipelineExecer {
return func(cmds []Cmder) error {
var firstErr error
for i := 0; i <= c.opt.MaxRetries; i++ {
cn, _, err := c.conn()
cn, _, err := c.getConn()
if err != nil {
setCmdsErr(cmds, err)
return err
}
canRetry, err := p(cn, cmds)
c.putConn(cn, err)
c.releaseConn(cn, err)
if err == nil {
return nil
}
@ -375,10 +391,12 @@ func (c *Client) TxPipeline() Pipeliner {
func (c *Client) pubSub() *PubSub {
return &PubSub{
base: baseClient{
opt: c.opt,
connPool: c.connPool,
opt: c.opt,
newConn: func(channels []string) (*pool.Conn, error) {
return c.newConn()
},
closeConn: c.connPool.CloseConn,
}
}