在数组列表中为运行空间注册 ObjectEvent

Question

我正在创建一个运行空间池，它将有多个运行空间在不同时间开始停止。

为了跟踪这一点，我所有的运行空间都进入了一个集合。

我正在尝试为每个对象注册一个对象事件，以便我可以 return 从运行空间到 gui 中的用户的信息。

我遇到问题的部分在这里：

$Global:RunspaceCollection
$Global:x = [Hashtable]::Synchronized(@{})

$RunspaceCollection = @()
[Collections.Arraylist]$Results = @()

$RunspacePool = [RunspaceFactory]::CreateRunspacePool(1,5)
$RunspacePool.Open()

$action = {
    Foreach($Runspace in $Global:RunspaceCollection.ToArray()) {
        If ($Runspace.runspace.iscompleted){
            $results.add($runspace.powershell.endinvoke($Runspace.runspace))

            $runspace.powershell.dispose()
            $runspacecollection.remove($Runspace)
            Write-Host "I AM WORKING"
            test-return

    }
}
Function Start-PasswordReset($username) {

    $scriptblock = {
    Param($userame)
    start-sleep -Seconds 10
    $Result = "I have reset" + $username
    $result
}

$Powershell = [PowerShell]::Create().AddScript($ScriptBlock).AddArgument($username)
$Powershell.RunspacePool = $RunspacePool

[Collections.Arraylist]$Global:RunspaceCollection += New-Object -TypeName PSObject -Property @{ 
    Runspace = $PowerShell.BeginInvoke() 
    PowerShell = $PowerShell

}
Register-ObjectEvent -InputObject $runspacecollection[0].Runspace -EventName statechanged -Action $Action
}


}

代码在 register-objectevent 行上失败，目前我硬编码了 0 用于测试，但这将是最终版本中的当前运行空间编号。我不知道我是否犯了一个小错误，或者对它的工作原理缺乏根本的了解，我对这两种可能性都持开放态度！

Answer 1

我看到了一些问题，但主要是 StateChanged 事件是 RunspaceCollection[index] 内 RunspacePool.Powershell 对象上的事件，而不是 RunspaceCollection.Runspace 上的事件（自定义 "Runspace" 属性您创建的 PSObject）。

在 Powershell 对象上设置运行空间，如下所示：

$powershell = [PowerShell]::Create()
$powershell.RunspacePool = $runspacePool
$powershell.AddScript($scriptBlock).AddArgument($username)
$Global:runspaceCollection += @{
    PowerShell = $powershell
    Handle     = $powershell.BeginInvoke()
}

然后将您的活动声明为：

Register-ObjectEvent -InputObject $Global:runspaceCollection[0].PowerShell.RunspacePool -EventName StateChanged -Action $Action

在那之后，我认为您不打算在 "Action" 函数中设置开始密码重置函数。这是对我有用的完整代码：

$Global:RunspaceCollection
$Global:x = [Hashtable]::Synchronized(@{})

$RunspaceCollection = @()
[Collections.Arraylist]$Results = @()

$RunspacePool = [RunspaceFactory]::CreateRunspacePool(1, 5)
$RunspacePool.Open()

$action = {
    Foreach ($Runspace in $Global:RunspaceCollection.ToArray()) {
        If ($Runspace.runspace.iscompleted) {
            $results.add($runspace.powershell.endinvoke($Runspace.runspace))

            $runspace.powershell.dispose()
            $runspacecollection.remove($Runspace)
            Write-Host "I AM WORKING"
            test-return
        }
    }
}

Function Start-PasswordReset($username) {
    $scriptblock = {
        Param($userame)
        start-sleep -Seconds 10
        $Result = "I have reset" + $username
        $result
    }

    $powershell = [PowerShell]::Create()
    $powershell.RunspacePool = $runspacePool
    $powershell.AddScript($scriptBlock).AddArgument($username)
    $Global:runspaceCollection += @{
        PowerShell = $powershell
        Handle     = $powershell.BeginInvoke()
    }

    Register-ObjectEvent -InputObject $Global:runspaceCollection[0].PowerShell.RunspacePool -EventName StateChanged -Action $Action
}

在数组列表中为运行空间注册 ObjectEvent

Register-ObjectEvent for runspace in an arraylist

powershell

runspace