避免呼叫深度溢出故障

Question

我创建了一个脚本来测试两个点之间的互联网连接，但是在~1小时之后，脚本失败了。

由于调用深度溢出，脚本失败。

我模糊地理解了我所创建的递归行为的概念，但我正在寻找一种方法，允许这个脚本在没有问题的情况下运行几天。

0435081769$targetAddress = 'Target-PC'
$outputDir = 'C:\Support\Logs'
$outputFile = 'NetworkStabilityLog.csv'

function Set-ConsoleWindow() {
    $pshost = Get-Host
    $pswindow = $PSHost.UI.RawUI
    $newsize = $PSWindow.WindowSize
    $newsize.Width = 50
    $newsize.Height = 15
    $PSWindow.WindowSize = $newsize
}

function Check-Dir() {
    if (!(Test-Path $outputDir\$outputFile)) {
        New-Item -ItemType Directory -Force -Path $outputDir
    }
    Add-Content $outputDir\$outputFile "Target Address, Status, Date"
    Clear
}

function Display-Message() {
    Write-Host "Testing connection to $targetAddress in progress"
    Write-Host
    Write-Host "Close window to stop test."
    Write-Host
}

function Ping-Network() {
    $date = Get-Date

    $checkIP = Test-Connection -ComputerName "$targetAddress" -Quiet -Count 1 -BufferSize 1

    if ($checkIP -Match "False") {
        Add-Content $outputDir\$outputFile "$targetAddress, Fail, $date"
        Write-Host "Connection Down at $Date"
    }

    Sleep-Script
}

function Sleep-Script() {
    Start-Sleep -Seconds 1
    Ping-Network
}

Set-ConsoleWindow
Check-Dir
Display-Message
Ping-Network

Answer 1

Ping-Network和Sleep-Script递归地调用对方，但从未中断过。你当然会有溢流。别干那事。！

如果你想要一个无限循环:做一个无限循环。从代码中删除函数Sleep-Script，并将最后一行(Ping-Network)替换为：

while ($true) {
    Ping-Network
    Start-Sleep -Seconds 1
}