如何并行执行几次PowerShell函数? [英] How to execute a PowerShell function several times in parallel?

问题描述

我不确定是否需要多线程，基于作业或异步的调用，但是基本上我有一个Powershell脚本函数，该函数需要多个参数，而我需要使用不同的参数多次调用它，并且让它们并行运行.

I'm not sure whether to call this a need for multi-threading, job-based, or async, but basically I have a Powershell script function that takes several parameters and I need to call it several times with different parameters and have these run in parallel.

当前，我这样调用函数:

Currently, I call the function like this:

Execute "param1" "param2" "param3" "param4"

我如何多次调用此方法，而不必等待每次执行调用返回给调用者?

How can I call this multiple times without waiting for each call to Execute return to the caller?

当前我正在运行v2.0，但如有必要，我可以进行更新

Currently I'm running v2.0 but I can update if necessary

编辑:这是到目前为止我无法使用的内容:

here's what I have so far, which doesn't work:

$cmd = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    Execute $vmxFilePath $machineName $username $password $scriptTpath $scriptFile $uacDismissScript $snapshotName
}

Start-Job -ScriptBlock $cmd -ArgumentList $vmxFilePath, $machineName, $username $password, $scriptTpath, $scriptFile, $uacDismissScript, $snapshotName

我得到一个错误:

无法将'system.object []'转换为参数'initializationscript'所需的'system.management.automation.scriptblock'类型.不支持指定的方法

cannot convert 'system.object[]' to the type 'system.management.automation.scriptblock' required by parameter 'initializationscript'. specified method is not supported

EDIT2 :我已经修改了脚本，但仍然收到上面提到的错误.这是我的mod:

I've modified my script but I still get the error mentioned above. Here's my mod:

$cmd = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    Execute $vmxFilePath $machineName $username $password $scriptTpath $scriptFile $uacDismissScript $snapshotName
}

Start-Job -ScriptBlock $cmd -ArgumentList $vmxFilePath, $machineName, $username $password, $scriptTpath, $scriptFile, $uacDismissScript, $snapshotName

推荐答案

对此无需任何更新.定义一个脚本块，并根据需要使用Start-Job多次运行该脚本块.示例:

No update necessary for this. Define a script block and use Start-Job to run the script block as many times as necessary. Example:

$cmd = {
  param($a, $b)
  Write-Host $a $b
}

$foo = "foo"

1..5 | ForEach-Object {
  Start-Job -ScriptBlock $cmd -ArgumentList $_, $foo
}

脚本块采用2个参数$a和$b，这两个参数由-ArgumentList选项传递.在上面的示例中，分配为$_→ $a和$foo→ $b. $foo只是可配置但静态参数的示例.

The script block takes 2 parameters $a and $b which are passed by the -ArgumentList option. In the example above, the assignments are $_ → $a and $foo → $b. $foo is just an example for a configurable, but static parameter.

在某个时候运行Get-Job | Remove-Job，从队列中删除完成的作业(如果要检索输出，则从Get-Job | % { Receive-Job $_.Id; Remove-Job $_.Id }删除).

Run Get-Job | Remove-Job at some point to remove the finished jobs from the queue (or Get-Job | % { Receive-Job $_.Id; Remove-Job $_.Id } if you want to retrieve the output).

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