mirror of
https://github.com/astaxie/beego.git
synced 2024-12-24 17:00:49 +00:00
110 lines
1.5 KiB
Go
110 lines
1.5 KiB
Go
package pool
|
|
|
|
import "sync"
|
|
|
|
type StickyConnPool struct {
|
|
pool *ConnPool
|
|
reusable bool
|
|
|
|
cn *Conn
|
|
closed bool
|
|
mu sync.Mutex
|
|
}
|
|
|
|
var _ Pooler = (*StickyConnPool)(nil)
|
|
|
|
func NewStickyConnPool(pool *ConnPool, reusable bool) *StickyConnPool {
|
|
return &StickyConnPool{
|
|
pool: pool,
|
|
reusable: reusable,
|
|
}
|
|
}
|
|
|
|
func (p *StickyConnPool) NewConn() (*Conn, error) {
|
|
panic("not implemented")
|
|
}
|
|
|
|
func (p *StickyConnPool) CloseConn(*Conn) error {
|
|
panic("not implemented")
|
|
}
|
|
|
|
func (p *StickyConnPool) Get() (*Conn, error) {
|
|
p.mu.Lock()
|
|
defer p.mu.Unlock()
|
|
|
|
if p.closed {
|
|
return nil, ErrClosed
|
|
}
|
|
if p.cn != nil {
|
|
return p.cn, nil
|
|
}
|
|
|
|
cn, err := p.pool.Get()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
p.cn = cn
|
|
return cn, nil
|
|
}
|
|
|
|
func (p *StickyConnPool) putUpstream() {
|
|
p.pool.Put(p.cn)
|
|
p.cn = nil
|
|
}
|
|
|
|
func (p *StickyConnPool) Put(cn *Conn) {}
|
|
|
|
func (p *StickyConnPool) removeUpstream() {
|
|
p.pool.Remove(p.cn)
|
|
p.cn = nil
|
|
}
|
|
|
|
func (p *StickyConnPool) Remove(cn *Conn) {
|
|
p.removeUpstream()
|
|
}
|
|
|
|
func (p *StickyConnPool) Len() int {
|
|
p.mu.Lock()
|
|
defer p.mu.Unlock()
|
|
|
|
if p.cn == nil {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (p *StickyConnPool) IdleLen() int {
|
|
p.mu.Lock()
|
|
defer p.mu.Unlock()
|
|
|
|
if p.cn == nil {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func (p *StickyConnPool) Stats() *Stats {
|
|
return nil
|
|
}
|
|
|
|
func (p *StickyConnPool) Close() error {
|
|
p.mu.Lock()
|
|
defer p.mu.Unlock()
|
|
|
|
if p.closed {
|
|
return ErrClosed
|
|
}
|
|
p.closed = true
|
|
|
|
if p.cn != nil {
|
|
if p.reusable {
|
|
p.putUpstream()
|
|
} else {
|
|
p.removeUpstream()
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|