forked from mirror/redis
83 lines
1.4 KiB
Go
83 lines
1.4 KiB
Go
package pool
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import (
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"bufio"
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"net"
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"sync/atomic"
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"time"
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)
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const defaultBufSize = 4096
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var noDeadline = time.Time{}
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type Conn struct {
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idx int32
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NetConn net.Conn
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Rd *bufio.Reader
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Buf []byte
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UsedAt time.Time
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ReadTimeout time.Duration
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WriteTimeout time.Duration
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}
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func NewConn(netConn net.Conn) *Conn {
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cn := &Conn{
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idx: -1,
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NetConn: netConn,
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Buf: make([]byte, defaultBufSize),
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UsedAt: time.Now(),
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}
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cn.Rd = bufio.NewReader(cn)
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return cn
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}
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func (cn *Conn) Index() int {
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return int(atomic.LoadInt32(&cn.idx))
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}
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func (cn *Conn) SetIndex(idx int) {
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atomic.StoreInt32(&cn.idx, int32(idx))
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}
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func (cn *Conn) IsStale(timeout time.Duration) bool {
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return timeout > 0 && time.Since(cn.UsedAt) > timeout
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}
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func (cn *Conn) Read(b []byte) (int, error) {
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cn.UsedAt = time.Now()
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if cn.ReadTimeout != 0 {
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cn.NetConn.SetReadDeadline(cn.UsedAt.Add(cn.ReadTimeout))
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} else {
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cn.NetConn.SetReadDeadline(noDeadline)
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}
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return cn.NetConn.Read(b)
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}
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func (cn *Conn) Write(b []byte) (int, error) {
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cn.UsedAt = time.Now()
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if cn.WriteTimeout != 0 {
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cn.NetConn.SetWriteDeadline(cn.UsedAt.Add(cn.WriteTimeout))
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} else {
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cn.NetConn.SetWriteDeadline(noDeadline)
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}
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return cn.NetConn.Write(b)
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}
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func (cn *Conn) RemoteAddr() net.Addr {
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return cn.NetConn.RemoteAddr()
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}
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func (cn *Conn) Close() int {
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idx := cn.Index()
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if !atomic.CompareAndSwapInt32(&cn.idx, int32(idx), -1) {
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return -1
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}
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_ = cn.NetConn.Close()
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return idx
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}
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