Wait-Job -Timeout 120
will block the thread until the specified timeout or all jobs have completed, hence, is not possible to display progress and wait for them at the same time.
There are 2 alternatives that I can think of, the first one would be to create a proxy command / proxy function around this cmdlet to extend it's functionality.
These blogs demonstrate how to do it:
You can also follow the indications from this helpful answer.
The other alternative is to define your own function that does a similar work as Wait-Job
but, instead of blocking the thread, you can add a loop that will run based on 2 conditions:
- That the elapsed time is lower than or equal to the Timeout we passed as argument to the function (we can use
Diagnostics.Stopwatch
for this).
- And, that the jobs are still Running (the
$jobs
List<T>
is still populated).
Note, the function below should work in most cases however is purely for demonstration purposes only and should not be relied upon.
First we define a new function that can be used to display progress as well as wait for our jobs based on a timeout:
using namespace System.Collections.Generic
using namespace System.Diagnostics
using namespace System.Threading
using namespace System.Management.Automation
function Wait-JobWithProgress {
[cmdletbinding()]
param(
[parameter(Mandatory, ValueFromPipeline)]
[object[]] $InputObject,
[parameter()]
[ValidateRange(1, [double]::MaxValue)]
[double] $TimeOut # In seconds!
)
begin {
$jobs = [List[object]]::new()
if ($withTimeOut = $PSBoundParameters.ContainsKey('TimeOut')) {
$span = [timespan]::FromSeconds($TimeOut)
}
}
process {
$jobs.AddRange($InputObject)
}
end {
$timer = [Stopwatch]::StartNew()
$total = $jobs.Count
$completed = 0.1
while ($jobs.Count) {
if ($withTimeOut -and $timer.Elapsed -gt $span) {
break
}
$remaining = $total - $completed
$average = $timer.Elapsed.TotalSeconds / $completed
$estimate = [math]::Round($remaining * $average)
$status = 'Completed Jobs: {0:0} of {1}' -f $completed, $total
$progress = @{
Activity = 'Waiting for Jobs'
PercentComplete = $completed / $total * 100
Status = $status
SecondsRemaining = $estimate
}
Write-Progress @progress
$id = [WaitHandle]::WaitAny($jobs.Finished, 200)
if ($id -eq [WaitHandle]::WaitTimeout) {
continue
}
# output this job
$jobs[$id]
# remove this job
$jobs.RemoveAt($id)
$completed++
}
# Stop the jobs not yet Completed and remove them
$jobs | Stop-Job -PassThru | ForEach-Object {
Remove-Job -Job $_
'Job [#{0} - {1}] did not complete on time and was removed.' -f $_.Id, $_.Name
} | Write-Warning
Write-Progress @progress -Completed
}
}
Then for testing it, we can create a few jobs with a random timer:
0..10 | ForEach-Object {
Start-Job {
Start-Sleep (Get-Random -Minimum 5 -Maximum 15)
[pscustomobject]@{
Job = $using:_
Result = 'Hello from [Job #{0:D2}]' -f $using:_
}
}
} | Wait-JobWithProgress -TimeOut 10 |
Receive-Job -AutoRemoveJob -Wait | Format-Table -AutoSize