mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 02:00:56 +00:00
89 lines
1.8 KiB
Go
89 lines
1.8 KiB
Go
// Copyright 2022 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package bcache
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import (
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"net"
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"time"
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)
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const (
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DefaultTimeOut = 1 * time.Second
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ConnectExpireTime = 20
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)
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type ConnObject struct {
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c *net.Conn
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lastActive int64
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}
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type ConnPool struct {
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conns chan *ConnObject
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mincap int
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maxcap int
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expire int64
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target string
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}
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func NewConnPool(target string, mincap, maxcap int, expire int64) *ConnPool {
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p := &ConnPool{
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conns: make(chan *ConnObject, maxcap),
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mincap: mincap,
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maxcap: maxcap,
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expire: expire,
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target: target,
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}
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return p
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}
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func (connPool *ConnPool) Get() (c *net.Conn, err error) {
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var o *ConnObject
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for {
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select {
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case o = <-connPool.conns:
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default:
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return connPool.NewConnect(connPool.target)
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}
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if time.Now().UnixNano()-o.lastActive > connPool.expire {
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_ = (*o.c).Close()
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o = nil
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continue
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}
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return o.c, nil
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}
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}
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func (connPool *ConnPool) NewConnect(target string) (*net.Conn, error) {
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conn, err := net.DialTimeout("unix", target, DefaultTimeOut)
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return &conn, err
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}
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func (connPool *ConnPool) Put(c *net.Conn) {
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o := &ConnObject{
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c: c,
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lastActive: time.Now().UnixNano(),
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}
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select {
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case connPool.conns <- o:
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return
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default:
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if o.c != nil {
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(*o.c).Close()
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}
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return
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}
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}
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