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channelPool中的conns为什么要生命成指针类型 #42

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@xjz9600

type channelPool struct {
mu sync.RWMutex
conns chan *idleConn
factory func() (interface{}, error)
close func(interface{}) error
ping func(interface{}) error
idleTimeout, waitTimeOut time.Duration
maxActive int
openingConns int
connReqs []chan connReq
}
里面的conns为啥要使用chan *idleConn,直接使用chan idleConn不可以吗?

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