threadSafeQueue.ps1

# Original form stackoverflow, can find the uri, answer by mklement0
$start = Get-Date
$queue = [System.Collections.Concurrent.ConcurrentQueue[string]]::new()

$job = Start-ThreadJob {
    $queue = $using:queue
    $item = $null
    while ($true) {
        while ($queue.TryDequeue([ref] $item)) {
            if ("`0" -eq $item) { 'Quitting...'; return }
            "[$item]"
        }
        Start-Sleep -MilliSeconds 100
    }
}

1..10 | ForEach-Object {
    $queue.Enqueue($_)
    $job | Receive-Job
}

$queue.Enqueue("`0")
$job | Receive-Job -Wait -AutoRemoveJob
New-TimeSpan -Start $start -End (Get-Date)