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								package mcm
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								import (
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									"context"
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									"mayfly-go/pkg/pool"
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								)
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								var (
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									poolGroup = pool.NewPoolGroup[*Cli]()
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								)
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								func init() {
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									AddCheckSshTunnelMachineUseFunc(func(machineId int) bool {
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										// 遍历所有redis连接实例,若存在redis实例使用该ssh隧道机器,则返回true,表示还在使用中...
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										items := poolGroup.AllPool()
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										for _, v := range items {
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											if v.Stats().TotalConns == 0 {
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												continue // 连接池中没有连接,跳过
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											}
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											cli, err := v.Get(context.Background())
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											if err != nil {
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												continue // 获取连接失败,跳过
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											}
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											sshTunnelMachine := cli.Info.SshTunnelMachine
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											if sshTunnelMachine != nil && sshTunnelMachine.Id == uint64(machineId) {
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												return true
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											}
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										}
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										return false
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									})
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								}
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								// 从缓存中获取客户端信息,不存在则回调获取机器信息函数,并新建。
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								// @param 机器的授权凭证名
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								func GetMachineCli(ctx context.Context, authCertName string, getMachine func(string) (*MachineInfo, error)) (*Cli, error) {
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									pool, err := poolGroup.GetCachePool(authCertName, func() (*Cli, error) {
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										mi, err := getMachine(authCertName)
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										if err != nil {
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											return nil, err
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										}
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										mi.Key = authCertName
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										return mi.Conn(context.Background())
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									})
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									if err != nil {
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										return nil, err
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									}
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									// 从连接池中获取一个可用的连接
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									return pool.Get(ctx)
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								}
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								// 删除指定机器缓存客户端,并关闭客户端连接
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								func DeleteCli(id uint64) {
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									for _, pool := range poolGroup.AllPool() {
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										if pool.Stats().TotalConns == 0 {
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											continue
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										}
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										conn, err := pool.Get(context.Background())
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										if err != nil {
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											continue
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										}
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										if conn.Info.Id == id {
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											poolGroup.Close(conn.Info.AuthCertName)
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										}
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									}
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								}
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