wehub-resource-sync
e071084ebe
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63 lines
920 B
Go
63 lines
920 B
Go
package socket
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import (
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"sync"
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)
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type Pool struct {
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pool map[string]*Socket
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sync.RWMutex
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}
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func (p *Pool) Get(id string) (*Socket, bool) {
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// attempt to get existing socket
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p.RLock()
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socket, ok := p.pool[id]
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if ok {
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p.RUnlock()
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return socket, ok
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}
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p.RUnlock()
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// save socket
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p.Lock()
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defer p.Unlock()
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// double checked locking
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socket, ok = p.pool[id]
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if ok {
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return socket, ok
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}
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// create new socket
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socket = New(id)
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p.pool[id] = socket
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// return socket
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return socket, false
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}
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func (p *Pool) Release(s *Socket) {
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p.Lock()
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defer p.Unlock()
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// close the socket
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s.Close()
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delete(p.pool, s.id)
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}
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// Close the pool and delete all the sockets.
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func (p *Pool) Close() {
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p.Lock()
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defer p.Unlock()
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for id, sock := range p.pool {
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sock.Close()
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delete(p.pool, id)
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}
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}
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// NewPool returns a new socket pool.
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func NewPool() *Pool {
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return &Pool{
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pool: make(map[string]*Socket),
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}
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}
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