mirror of
https://github.com/go-gitea/gitea
synced 2024-08-19 22:00:48 +02:00
232 lines
4.1 KiB
Go
232 lines
4.1 KiB
Go
package redis
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import (
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"log"
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"net"
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"time"
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)
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type baseClient struct {
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connPool pool
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opt *options
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cmds []Cmder
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}
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func (c *baseClient) writeCmd(cn *conn, cmds ...Cmder) error {
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buf := cn.buf[:0]
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for _, cmd := range cmds {
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buf = appendArgs(buf, cmd.args())
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}
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_, err := cn.Write(buf)
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return err
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}
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func (c *baseClient) conn() (*conn, error) {
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cn, isNew, err := c.connPool.Get()
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if err != nil {
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return nil, err
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}
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if isNew {
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if err := c.initConn(cn); err != nil {
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c.removeConn(cn)
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return nil, err
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}
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}
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return cn, nil
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}
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func (c *baseClient) initConn(cn *conn) error {
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if c.opt.Password == "" && c.opt.DB == 0 {
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return nil
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}
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pool := newSingleConnPool(c.connPool, false)
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pool.SetConn(cn)
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// Client is not closed because we want to reuse underlying connection.
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client := &Client{
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baseClient: &baseClient{
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opt: c.opt,
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connPool: pool,
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},
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}
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if c.opt.Password != "" {
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if err := client.Auth(c.opt.Password).Err(); err != nil {
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return err
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}
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}
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if c.opt.DB > 0 {
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if err := client.Select(c.opt.DB).Err(); err != nil {
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return err
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}
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}
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return nil
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}
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func (c *baseClient) freeConn(cn *conn, ei error) error {
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if cn.rd.Buffered() > 0 {
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return c.connPool.Remove(cn)
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}
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if _, ok := ei.(redisError); ok {
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return c.connPool.Put(cn)
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}
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return c.connPool.Remove(cn)
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}
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func (c *baseClient) removeConn(cn *conn) {
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if err := c.connPool.Remove(cn); err != nil {
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log.Printf("pool.Remove failed: %s", err)
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}
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}
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func (c *baseClient) putConn(cn *conn) {
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if err := c.connPool.Put(cn); err != nil {
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log.Printf("pool.Put failed: %s", err)
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}
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}
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func (c *baseClient) Process(cmd Cmder) {
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if c.cmds == nil {
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c.run(cmd)
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} else {
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c.cmds = append(c.cmds, cmd)
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}
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}
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func (c *baseClient) run(cmd Cmder) {
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cn, err := c.conn()
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if err != nil {
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cmd.setErr(err)
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return
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}
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if timeout := cmd.writeTimeout(); timeout != nil {
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cn.writeTimeout = *timeout
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} else {
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cn.writeTimeout = c.opt.WriteTimeout
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}
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if timeout := cmd.readTimeout(); timeout != nil {
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cn.readTimeout = *timeout
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} else {
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cn.readTimeout = c.opt.ReadTimeout
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}
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if err := c.writeCmd(cn, cmd); err != nil {
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c.freeConn(cn, err)
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cmd.setErr(err)
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return
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}
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if err := cmd.parseReply(cn.rd); err != nil {
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c.freeConn(cn, err)
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return
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}
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c.putConn(cn)
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}
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// Close closes the client, releasing any open resources.
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func (c *baseClient) Close() error {
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return c.connPool.Close()
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}
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//------------------------------------------------------------------------------
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type options struct {
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Password string
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DB int64
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DialTimeout time.Duration
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ReadTimeout time.Duration
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WriteTimeout time.Duration
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PoolSize int
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IdleTimeout time.Duration
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}
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type Options struct {
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Network string
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Addr string
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// Dialer creates new network connection and has priority over
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// Network and Addr options.
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Dialer func() (net.Conn, error)
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Password string
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DB int64
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DialTimeout time.Duration
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ReadTimeout time.Duration
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WriteTimeout time.Duration
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PoolSize int
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IdleTimeout time.Duration
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}
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func (opt *Options) getPoolSize() int {
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if opt.PoolSize == 0 {
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return 10
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}
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return opt.PoolSize
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}
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func (opt *Options) getDialTimeout() time.Duration {
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if opt.DialTimeout == 0 {
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return 5 * time.Second
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}
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return opt.DialTimeout
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}
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func (opt *Options) options() *options {
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return &options{
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DB: opt.DB,
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Password: opt.Password,
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DialTimeout: opt.getDialTimeout(),
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ReadTimeout: opt.ReadTimeout,
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WriteTimeout: opt.WriteTimeout,
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PoolSize: opt.getPoolSize(),
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IdleTimeout: opt.IdleTimeout,
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}
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}
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type Client struct {
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*baseClient
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}
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func NewClient(clOpt *Options) *Client {
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opt := clOpt.options()
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dialer := clOpt.Dialer
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if dialer == nil {
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dialer = func() (net.Conn, error) {
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return net.DialTimeout(clOpt.Network, clOpt.Addr, opt.DialTimeout)
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}
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}
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return &Client{
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baseClient: &baseClient{
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opt: opt,
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connPool: newConnPool(newConnFunc(dialer), opt),
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},
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}
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}
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// Deprecated. Use NewClient instead.
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func NewTCPClient(opt *Options) *Client {
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opt.Network = "tcp"
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return NewClient(opt)
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}
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// Deprecated. Use NewClient instead.
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func NewUnixClient(opt *Options) *Client {
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opt.Network = "unix"
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return NewClient(opt)
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}
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