Powershell Wait for service to be stopped or started

Question

I have searched both this forum and through google and can't find what I need. I have a quite large script and I'm looking for some code that will check if the service is started or stopped before proceeding to the next step.

The function it self need to loop untill it's either stopped or started (Going to have a function for Stopped and one for Started).

In total 4 services which almost have the same name, so Service Bus * can be used as a wildcard.

Answer 1

I couldn't get the 'count' strategy, that Micky posted, to work, so here is how i solved it:

I created a function, that takes a searchString (this could be "Service Bus *") and the status that i expect the services should reach.

function WaitUntilServices($searchString, $status) {     # Get all services where DisplayName matches $searchString and loop through each of them.     foreach($service in (Get-Service -DisplayName $searchString))     {         # Wait for the service to reach the $status or a maximum of 30 seconds         $service.WaitForStatus($status, '00:00:30')     } } 

The function can now be called with

WaitUntilServices "Service Bus *" "Stopped" 

or

WaitUntilServices "Service Bus *" "Running" 

If the timeout period is reached, a not so graceful exception is thrown:

Exception calling "WaitForStatus" with "2" argument(s): "Time out has expired and the operation has not been completed." 

Answer 2

In addition to the answer of mgarde this one liner might be useful if you just want to wait for a single service (also inspired by a post from Shay Levy):

(Get-Service SomeInterestingService).WaitForStatus('Running')