internal/maintenance/PSSession-Cleanup.ps1

$scriptBlock = {
    while ([Sqlcollaborative.Dbatools.Connection.ConnectionHost]::PSSessionCountExpired -gt 0) {
        $session = $null
        $session = [Sqlcollaborative.Dbatools.Connection.ConnectionHost]::PSSessionPurgeExpired()
        if ($null -ne $session) { $session | Remove-PSSession }
    }
}
Register-DbaMaintenanceTask -Name "pssession_cleanup" -ScriptBlock $scriptBlock -Delay (New-TimeSpan -Minutes 1) -Priority Low -Interval (New-TimeSpan -Minutes 1)

# Cleans up local references in the current runspace. All actual termination logic is handled by the task above
$script:pssession_cleanup_timer = New-Object System.Timers.TImer
$script:pssession_cleanup_timer.Interval = 60000
$null = Register-ObjectEvent -InputObject $script:pssession_cleanup_timer -EventName elapsed -SourceIdentifier dbatools_Timer -Action { Get-PSSession | Where-Object State -Like Closed | Remove-PSSession } -ErrorAction Ignore
$script:pssession_cleanup_timer.Start()
# SIG # Begin signature block
# MIIZewYJKoZIhvcNAQcCoIIZbDCCGWgCAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB
# gjcCAQSgWzBZMDQGCisGAQQBgjcCAR4wJgIDAQAABBAfzDtgWUsITrck0sYpfvNR
# AgEAAgEAAgEAAgEAAgEAMCEwCQYFKw4DAhoFAAQUKBR6W9yZeFlJK6HoC84e/aJi
# 8hegghSJMIIE/jCCA+agAwIBAgIQDUJK4L46iP9gQCHOFADw3TANBgkqhkiG9w0B
# AQsFADByMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYD
# VQQLExB3d3cuZGlnaWNlcnQuY29tMTEwLwYDVQQDEyhEaWdpQ2VydCBTSEEyIEFz
# c3VyZWQgSUQgVGltZXN0YW1waW5nIENBMB4XDTIxMDEwMTAwMDAwMFoXDTMxMDEw
# NjAwMDAwMFowSDELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDkRpZ2lDZXJ0LCBJbmMu
# MSAwHgYDVQQDExdEaWdpQ2VydCBUaW1lc3RhbXAgMjAyMTCCASIwDQYJKoZIhvcN
# AQEBBQADggEPADCCAQoCggEBAMLmYYRnxYr1DQikRcpja1HXOhFCvQp1dU2UtAxQ
# tSYQ/h3Ib5FrDJbnGlxI70Tlv5thzRWRYlq4/2cLnGP9NmqB+in43Stwhd4CGPN4
# bbx9+cdtCT2+anaH6Yq9+IRdHnbJ5MZ2djpT0dHTWjaPxqPhLxs6t2HWc+xObTOK
# fF1FLUuxUOZBOjdWhtyTI433UCXoZObd048vV7WHIOsOjizVI9r0TXhG4wODMSlK
# XAwxikqMiMX3MFr5FK8VX2xDSQn9JiNT9o1j6BqrW7EdMMKbaYK02/xWVLwfoYer
# vnpbCiAvSwnJlaeNsvrWY4tOpXIc7p96AXP4Gdb+DUmEvQECAwEAAaOCAbgwggG0
# MA4GA1UdDwEB/wQEAwIHgDAMBgNVHRMBAf8EAjAAMBYGA1UdJQEB/wQMMAoGCCsG
# AQUFBwMIMEEGA1UdIAQ6MDgwNgYJYIZIAYb9bAcBMCkwJwYIKwYBBQUHAgEWG2h0
# dHA6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzAfBgNVHSMEGDAWgBT0tuEgHf4prtLk
# YaWyoiWyyBc1bjAdBgNVHQ4EFgQUNkSGjqS6sGa+vCgtHUQ23eNqerwwcQYDVR0f
# BGowaDAyoDCgLoYsaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL3NoYTItYXNzdXJl
# ZC10cy5jcmwwMqAwoC6GLGh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9zaGEyLWFz
# c3VyZWQtdHMuY3JsMIGFBggrBgEFBQcBAQR5MHcwJAYIKwYBBQUHMAGGGGh0dHA6
# Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBPBggrBgEFBQcwAoZDaHR0cDovL2NhY2VydHMu
# ZGlnaWNlcnQuY29tL0RpZ2lDZXJ0U0hBMkFzc3VyZWRJRFRpbWVzdGFtcGluZ0NB
# LmNydDANBgkqhkiG9w0BAQsFAAOCAQEASBzctemaI7znGucgDo5nRv1CclF0CiNH
# o6uS0iXEcFm+FKDlJ4GlTRQVGQd58NEEw4bZO73+RAJmTe1ppA/2uHDPYuj1UUp4
# eTZ6J7fz51Kfk6ftQ55757TdQSKJ+4eiRgNO/PT+t2R3Y18jUmmDgvoaU+2QzI2h
# F3MN9PNlOXBL85zWenvaDLw9MtAby/Vh/HUIAHa8gQ74wOFcz8QRcucbZEnYIpp1
# FUL1LTI4gdr0YKK6tFL7XOBhJCVPst/JKahzQ1HavWPWH1ub9y4bTxMd90oNcX6X
# t/Q/hOvB46NJofrOp79Wz7pZdmGJX36ntI5nePk2mOHLKNpbh6aKLzCCBRowggQC
# oAMCAQICEAMFu4YhsKFjX7/erhIE520wDQYJKoZIhvcNAQELBQAwcjELMAkGA1UE
# BhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3LmRpZ2lj
# ZXJ0LmNvbTExMC8GA1UEAxMoRGlnaUNlcnQgU0hBMiBBc3N1cmVkIElEIENvZGUg
# U2lnbmluZyBDQTAeFw0yMDA1MTIwMDAwMDBaFw0yMzA2MDgxMjAwMDBaMFcxCzAJ
# BgNVBAYTAlVTMREwDwYDVQQIEwhWaXJnaW5pYTEPMA0GA1UEBxMGVmllbm5hMREw
# DwYDVQQKEwhkYmF0b29sczERMA8GA1UEAxMIZGJhdG9vbHMwggEiMA0GCSqGSIb3
# DQEBAQUAA4IBDwAwggEKAoIBAQC8v2N7q+O/vggBtpjmteofFo140k73JXQ5sOD6
# QLzjgija+scoYPxTmFSImnqtjfZFWmucAWsDiMVVro/6yGjsXmJJUA7oD5BlMdAK
# fuiq4558YBOjjc0Bp3NbY5ZGujdCmsw9lqHRAVil6P1ZpAv3D/TyVVq6AjDsJY+x
# rRL9iMc8YpD5tiAj+SsRSuT5qwPuW83ByRHqkaJ5YDJ/R82ZKh69AFNXoJ3xCJR+
# P7+pa8tbdSgRf25w4ZfYPy9InEvsnIRVZMeDjjuGvqr0/Mar73UI79z0NYW80yN/
# 7VzlrvV8RnniHWY2ib9ehZligp5aEqdV2/XFVPV4SKaJs8R9AgMBAAGjggHFMIIB
# wTAfBgNVHSMEGDAWgBRaxLl7KgqjpepxA8Bg+S32ZXUOWDAdBgNVHQ4EFgQU8MCg
# +7YDgENO+wnX3d96scvjniIwDgYDVR0PAQH/BAQDAgeAMBMGA1UdJQQMMAoGCCsG
# AQUFBwMDMHcGA1UdHwRwMG4wNaAzoDGGL2h0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNv
# bS9zaGEyLWFzc3VyZWQtY3MtZzEuY3JsMDWgM6Axhi9odHRwOi8vY3JsNC5kaWdp
# Y2VydC5jb20vc2hhMi1hc3N1cmVkLWNzLWcxLmNybDBMBgNVHSAERTBDMDcGCWCG
# SAGG/WwDATAqMCgGCCsGAQUFBwIBFhxodHRwczovL3d3dy5kaWdpY2VydC5jb20v
# Q1BTMAgGBmeBDAEEATCBhAYIKwYBBQUHAQEEeDB2MCQGCCsGAQUFBzABhhhodHRw
# Oi8vb2NzcC5kaWdpY2VydC5jb20wTgYIKwYBBQUHMAKGQmh0dHA6Ly9jYWNlcnRz
# LmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydFNIQTJBc3N1cmVkSURDb2RlU2lnbmluZ0NB
# LmNydDAMBgNVHRMBAf8EAjAAMA0GCSqGSIb3DQEBCwUAA4IBAQCPzflwlQwf1jak
# EqymPOc0nBxiY7F4FwcmL7IrTLhub6Pjg4ZYfiC79Akz5aNlqO+TJ0kqglkfnOsc
# jfKQzzDwcZthLVZl83igzCLnWMo8Zk/D2d4ZLY9esFwqPNvuuVDrHvgh7H6DJ/zP
# Vm5EOK0sljT0UQ6HQEwtouH5S8nrqCGZ8jKM/+DeJlm+rCAGGf7TV85uqsAn5JqD
# En/bXE1AlyG1Q5YiXFGS5Sf0qS4Nisw7vRrZ6Qc4NwBty4cAYjzDPDixorWI8+FV
# OUWKMdL7tV8i393/XykwsccCstBCp7VnSZN+4vgzjEJQql5uQfysjcW9rrb/qixp
# csPTKYRHMIIFMDCCBBigAwIBAgIQBAkYG1/Vu2Z1U0O1b5VQCDANBgkqhkiG9w0B
# AQsFADBlMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYD
# VQQLExB3d3cuZGlnaWNlcnQuY29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVk
# IElEIFJvb3QgQ0EwHhcNMTMxMDIyMTIwMDAwWhcNMjgxMDIyMTIwMDAwWjByMQsw
# CQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cu
# ZGlnaWNlcnQuY29tMTEwLwYDVQQDEyhEaWdpQ2VydCBTSEEyIEFzc3VyZWQgSUQg
# Q29kZSBTaWduaW5nIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA
# +NOzHH8OEa9ndwfTCzFJGc/Q+0WZsTrbRPV/5aid2zLXcep2nQUut4/6kkPApfmJ
# 1DcZ17aq8JyGpdglrA55KDp+6dFn08b7KSfH03sjlOSRI5aQd4L5oYQjZhJUM1B0
# sSgmuyRpwsJS8hRniolF1C2ho+mILCCVrhxKhwjfDPXiTWAYvqrEsq5wMWYzcT6s
# cKKrzn/pfMuSoeU7MRzP6vIK5Fe7SrXpdOYr/mzLfnQ5Ng2Q7+S1TqSp6moKq4Tz
# rGdOtcT3jNEgJSPrCGQ+UpbB8g8S9MWOD8Gi6CxR93O8vYWxYoNzQYIH5DiLanMg
# 0A9kczyen6Yzqf0Z3yWT0QIDAQABo4IBzTCCAckwEgYDVR0TAQH/BAgwBgEB/wIB
# ADAOBgNVHQ8BAf8EBAMCAYYwEwYDVR0lBAwwCgYIKwYBBQUHAwMweQYIKwYBBQUH
# AQEEbTBrMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wQwYI
# KwYBBQUHMAKGN2h0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFz
# c3VyZWRJRFJvb3RDQS5jcnQwgYEGA1UdHwR6MHgwOqA4oDaGNGh0dHA6Ly9jcmw0
# LmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRJRFJvb3RDQS5jcmwwOqA4oDaG
# NGh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRJRFJvb3RD
# QS5jcmwwTwYDVR0gBEgwRjA4BgpghkgBhv1sAAIEMCowKAYIKwYBBQUHAgEWHGh0
# dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCgYIYIZIAYb9bAMwHQYDVR0OBBYE
# FFrEuXsqCqOl6nEDwGD5LfZldQ5YMB8GA1UdIwQYMBaAFEXroq/0ksuCMS1Ri6en
# IZ3zbcgPMA0GCSqGSIb3DQEBCwUAA4IBAQA+7A1aJLPzItEVyCx8JSl2qB1dHC06
# GsTvMGHXfgtg/cM9D8Svi/3vKt8gVTew4fbRknUPUbRupY5a4l4kgU4QpO4/cY5j
# DhNLrddfRHnzNhQGivecRk5c/5CxGwcOkRX7uq+1UcKNJK4kxscnKqEpKBo6cSgC
# PC6Ro8AlEeKcFEehemhor5unXCBc2XGxDI+7qPjFEmifz0DLQESlE/DmZAwlCEIy
# sjaKJAL+L3J+HNdJRZboWR3p+nRka7LrZkPas7CM1ekN3fYBIM6ZMWM9CBoYs4Gb
# T8aTEAb8B4H6i9r5gkn3Ym6hU/oSlBiFLpKR6mhsRDKyZqHnGKSaZFHvMIIFMTCC
# BBmgAwIBAgIQCqEl1tYyG35B5AXaNpfCFTANBgkqhkiG9w0BAQsFADBlMQswCQYD
# VQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cuZGln
# aWNlcnQuY29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVkIElEIFJvb3QgQ0Ew
# HhcNMTYwMTA3MTIwMDAwWhcNMzEwMTA3MTIwMDAwWjByMQswCQYDVQQGEwJVUzEV
# MBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cuZGlnaWNlcnQuY29t
# MTEwLwYDVQQDEyhEaWdpQ2VydCBTSEEyIEFzc3VyZWQgSUQgVGltZXN0YW1waW5n
# IENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvdAy7kvNj3/dqbqC
# mcU5VChXtiNKxA4HRTNREH3Q+X1NaH7ntqD0jbOI5Je/YyGQmL8TvFfTw+F+CNZq
# FAA49y4eO+7MpvYyWf5fZT/gm+vjRkcGGlV+Cyd+wKL1oODeIj8O/36V+/OjuiI+
# GKwR5PCZA207hXwJ0+5dyJoLVOOoCXFr4M8iEA91z3FyTgqt30A6XLdR4aF5FMZN
# JCMwXbzsPGBqrC8HzP3w6kfZiFBe/WZuVmEnKYmEUeaC50ZQ/ZQqLKfkdT66mA+E
# f58xFNat1fJky3seBdCEGXIX8RcG7z3N1k3vBkL9olMqT4UdxB08r8/arBD13ays
# 6Vb/kwIDAQABo4IBzjCCAcowHQYDVR0OBBYEFPS24SAd/imu0uRhpbKiJbLIFzVu
# MB8GA1UdIwQYMBaAFEXroq/0ksuCMS1Ri6enIZ3zbcgPMBIGA1UdEwEB/wQIMAYB
# Af8CAQAwDgYDVR0PAQH/BAQDAgGGMBMGA1UdJQQMMAoGCCsGAQUFBwMIMHkGCCsG
# AQUFBwEBBG0wazAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29t
# MEMGCCsGAQUFBzAChjdodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNl
# cnRBc3N1cmVkSURSb290Q0EuY3J0MIGBBgNVHR8EejB4MDqgOKA2hjRodHRwOi8v
# Y3JsNC5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkSURSb290Q0EuY3JsMDqg
# OKA2hjRodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkSURS
# b290Q0EuY3JsMFAGA1UdIARJMEcwOAYKYIZIAYb9bAACBDAqMCgGCCsGAQUFBwIB
# FhxodHRwczovL3d3dy5kaWdpY2VydC5jb20vQ1BTMAsGCWCGSAGG/WwHATANBgkq
# hkiG9w0BAQsFAAOCAQEAcZUS6VGHVmnN793afKpjerN4zwY3QITvS4S/ys8DAv3F
# p8MOIEIsr3fzKx8MIVoqtwU0HWqumfgnoma/Capg33akOpMP+LLR2HwZYuhegiUe
# xLoceywh4tZbLBQ1QwRostt1AuByx5jWPGTlH0gQGF+JOGFNYkYkh2OMkVIsrymJ
# 5Xgf1gsUpYDXEkdws3XVk4WTfraSZ/tTYYmo9WuWwPRYaQ18yAGxuSh1t5ljhSKM
# Ycp5lH5Z/IwP42+1ASa2bKXuh1Eh5Fhgm7oMLSttosR+u8QlK0cCCHxJrhO24XxC
# QijGGFbPQTS2Zl22dHv1VjMiLyI2skuiSpXY9aaOUjGCBFwwggRYAgEBMIGGMHIx
# CzAJBgNVBAYTAlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3
# dy5kaWdpY2VydC5jb20xMTAvBgNVBAMTKERpZ2lDZXJ0IFNIQTIgQXNzdXJlZCBJ
# RCBDb2RlIFNpZ25pbmcgQ0ECEAMFu4YhsKFjX7/erhIE520wCQYFKw4DAhoFAKB4
# MBgGCisGAQQBgjcCAQwxCjAIoAKAAKECgAAwGQYJKoZIhvcNAQkDMQwGCisGAQQB
# gjcCAQQwHAYKKwYBBAGCNwIBCzEOMAwGCisGAQQBgjcCARUwIwYJKoZIhvcNAQkE
# MRYEFFKZc9WxSgzUBUXUXHwQJw2bLBXwMA0GCSqGSIb3DQEBAQUABIIBAJWera7O
# libmqqqluFTF2n21h5QrmS9FU3I8l/eAq9qCWVYsCs0IxrcqLNv6Av8HDu1pVamz
# 1wiTPLWwJi+xyE+WaPiBb5I1JDaBOCre6IRWCYPvp+MYMiadaExENQ6X1E741cEI
# HxiueoCLGE8hRrh5hB1BtRIm/3OteWcZN7xnClVuBw0xuJ3N8I3gkoiBSby/DXsH
# vdPfmkiTO4o+341crKLsEITUqXyKUTgYcPjw+EaAAXZhyLXthMAgzKfhM9rhqBu0
# /26CnQ17HnajCoBj1YIEARolSNy/Oy/2BcNWw1wQ7VV3r+GoUVXM9tOEp60OyapN
# 5d0fs0KwXI/E/nShggIwMIICLAYJKoZIhvcNAQkGMYICHTCCAhkCAQEwgYYwcjEL
# MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3
# LmRpZ2ljZXJ0LmNvbTExMC8GA1UEAxMoRGlnaUNlcnQgU0hBMiBBc3N1cmVkIElE
# IFRpbWVzdGFtcGluZyBDQQIQDUJK4L46iP9gQCHOFADw3TANBglghkgBZQMEAgEF
# AKBpMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTIx
# MTEyNDEyMjMxM1owLwYJKoZIhvcNAQkEMSIEIPdCXbcSoT32QIqGL0LSQAFHPCPP
# QyFqikmWS/XSBMyhMA0GCSqGSIb3DQEBAQUABIIBAFcwTQSOuSdotjGkU+mDW+Co
# IqdOXZ98R4goSXVRAMZyIJTViYN6SHMZOcbtFbk2thgfL1gOvWC55YKZMlpSFZXw
# iZLGXq0WetmX1rJhOISU6u2QTxKIa8feNpj+4i5UluHaMwfm6dPk9U3DLAWdKXzT
# WO77Wg10rXDHkG1DJdumJzdFEGFxLGB0/0E7MzxruhOhvtvJHPLoiWlHHHIuTspz
# xYgQY5yvOw4nC5vUeYRjHvMGSsYV9ju9w3DgNCXkFCQfu61wvtH0JNar3kxPSRDE
# b5+VPttR5Q82eqK04V/4g7VuDxL35WF1o1NtO+rJED/246EkiFP2JYrF44gzHbY=
# SIG # End signature block