Powershell:运行空间/池如何传递函数和共享变量?
我正在尝试创建一个使用共享变量的线程(在主会话和线程之间) 此外,还提供了线程使用主代码中的外部函数的能力 我已经成功地将函数传递给线程使用 我已经成功地传递了只读变量。 我的问题是,如果我在线程内更改变量的值,然后我尝试从主会话读取它-我看不到值的更改,因此它不是共享的 我该怎么做? 我的目标是在最后有一个线程 这是我的代码:Powershell:运行空间/池如何传递函数和共享变量?,powershell,Powershell,我正在尝试创建一个使用共享变量的线程(在主会话和线程之间) 此外,还提供了线程使用主代码中的外部函数的能力 我已经成功地将函数传递给线程使用 我已经成功地传递了只读变量。 我的问题是,如果我在线程内更改变量的值,然后我尝试从主会话读取它-我看不到值的更改,因此它不是共享的 我该怎么做? 我的目标是在最后有一个线程 这是我的代码: $x = [Hashtable]::Synchronized(@{}) $global:yo = "START" Function ConvertTo-Hex {
$x = [Hashtable]::Synchronized(@{})
$global:yo = "START"
Function ConvertTo-Hex {
#Write-Output "Function Ran"
write-host "hi"
$x.host.ui.WriteVerboseLine("===========")
write-host $yo
$yo="TEST"
write-host $yo
}
#endregion
$rs = [RunspaceFactory]::CreateRunspace()
$rs.ApartmentState,$rs.ThreadOptions = "STA","ReUseThread"
$rs.Open()
$rs.SessionStateProxy.SetVariable("x",$x)
ls
# create an array and add it to session state
$arrayList = New-Object System.Collections.ArrayList
$arrayList.AddRange(('a','b','c','d','e'))
$x.host = $host
$sessionstate = [system.management.automation.runspaces.initialsessionstate]::CreateDefault()
$sessionstate.Variables.Add((New-Object System.Management.Automation.Runspaces.SessionStateVariableEntry('arrayList', $arrayList, $null)))
$sessionstate.Variables.Add((New-Object System.Management.Automation.Runspaces.SessionStateVariableEntry('x', $x, $null)))
#$sessionstate.Variables.Add((New-Object System.Management.Automation.Runspaces.SessionStateVariableEntry('yo', $yo, $true)))
$sessionstate.Commands.Add((New-Object System.Management.Automation.Runspaces.SessionStateFunctionEntry -ArgumentList 'ConvertTo-Hex', (Get-Content Function:\ConvertTo-Hex -ErrorAction Stop)))
$runspacepool = [runspacefactory]::CreateRunspacePool(1, 2, $sessionstate, $Host)
$runspacepool.Open()
$ps1 = [powershell]::Create()
$ps1.RunspacePool = $runspacepool
$ps1.AddScript({
for ($i = 1; $i -le 15; $i++)
{
$letter = Get-Random -InputObject (97..122) | % {[char]$_} # a random lowercase letter
$null = $arrayList.Add($letter)
start-sleep -s 1
}
})
$ps1.AddParameter(@($yo))
# on the first thread start a process that adds values to $arrayList every second
$handle1 = $ps1.BeginInvoke()
# now on the second thread, output the value of $arrayList every 1.5 seconds
$ps2 = [powershell]::Create()
$ps2.RunspacePool = $runspacepool
$ps2.AddScript({
Write-Host "ArrayList contents is "
foreach ($i in $arrayList)
{
Write-Host $i -NoNewline
Write-Host " " -NoNewline
}
Write-Host ""
$yo = "BAH"
ConvertTo-Hex
})
$ps2.AddParameter(@($yo))
1..10 | % {
$handle2 = $ps2.BeginInvoke()
if ($handle2.AsyncWaitHandle.WaitOne())
{
$ps2.EndInvoke($handle2)
}
start-sleep -s 1.5
write-host "====================" + $yo
}
您需要在函数中写入$global
$global:yo = "test"