Scripts/Stop-RSJob.ps1

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Function Stop-RSJob {
    <#
        .SYNOPSIS
            Stops a Windows PowerShell runspace job.
 
        .DESCRIPTION
            Stops a Windows PowerShell background job that has been started using Start-RSJob
 
        .PARAMETER Name
            The name of the jobs to stop..
 
        .PARAMETER ID
            The ID of the jobs to stop.
 
        .PARAMETER InstanceID
            The GUID of the jobs to stop.
             
        .PARAMETER Job
            The job object to stop.
 
        .NOTES
            Name: Stop-RSJob
            Author: Boe Prox
 
        .EXAMPLE
            Get-RSJob -State Completed | Stop-RSJob
 
            Description
            -----------
            Stop all jobs with a State of Completed.
 
        .EXAMPLE
            Stop-RSJob -ID 1,5,78
 
            Description
            -----------
            Stop jobs with IDs 1,5,78.
    #>

    [cmdletbinding(
        DefaultParameterSetName='Job'
    )]
    Param (
        [parameter(ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,
        ParameterSetName='Name')]
        [string[]]$Name,
        [parameter(ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,
        ParameterSetName='Id')]
        [int[]]$Id,
        [parameter(ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,
        ParameterSetName='Guid')]
        [guid[]]$InstanceID,
        [parameter(ValueFromPipeline=$True,ParameterSetName='Job')]
        [PoshRS.PowerShell.RSJob[]]$Job
    )
    Begin {        
        If ($PSBoundParameters['Debug']) {
            $DebugPreference = 'Continue'
        }  
        Write-Debug "Begin"      
        $List = New-Object System.Collections.ArrayList
        $StringBuilder = New-Object System.Text.StringBuilder

        #Take care of bound parameters
        If ($PSBoundParameters['Name']) {
            [void]$list.AddRange($Name)
            $Bound = $True
        }
        If ($PSBoundParameters['Id']) {
            [void]$list.AddRange($Id)
            $Bound = $True
        }
        If ($PSBoundParameters['InstanceId']) {
            [void]$list.AddRange($InstanceId)
            $Bound = $True
        }
        If ($PSBoundParameters['Job']) {
            [void]$list.AddRange($Job)
            $Bound = $True
        }
        Write-Debug "Process"
    }
    Process {
        If (-Not $Bound) {
            [void]$List.Add($_)
        }
    }
    End {
        Write-Debug "End"
        Write-Debug "ParameterSet: $($PSCmdlet.parametersetname)"
        Switch ($PSCmdlet.parametersetname) {
            'Name' {
                $Items = '"{0}"' -f (($list | ForEach {"^{0}$" -f $_}) -join '|') -replace '\*','.*'
                [void]$StringBuilder.Append("`$_.Name -match $Items") 
                $ScriptBlock = [scriptblock]::Create($StringBuilder.ToString())                    
            }
            'Id' {
                $Items = '"{0}"' -f (($list | ForEach {"^{0}$" -f $_}) -join '|')
                [void]$StringBuilder.Append("`$_.Id -match $Items") 
                $ScriptBlock = [scriptblock]::Create($StringBuilder.ToString())                
            }
            'Guid' {
                $Items = '"{0}"' -f (($list | ForEach {"^{0}$" -f $_}) -join '|')
                [void]$StringBuilder.Append("`$_.InstanceId -match $Items")   
                $ScriptBlock = [scriptblock]::Create($StringBuilder.ToString())   
            }
            Default {$ScriptBlock=$Null}
        }
        If ($ScriptBlock) {
            Write-Verbose "Using ScriptBlock"
            $ToStop = $jobs | Where $ScriptBlock
        } Else {
            $ToStop = $List
        }
        [System.Threading.Monitor]::Enter($Jobs.syncroot) 
        $ToStop | ForEach {            
            Write-Verbose "Stopping $($_.InstanceId)"
            If ($_.State -ne 'Completed') {
                [void]$_.InnerJob.EndInvoke($_.Handle)
            }
        }
        [System.Threading.Monitor]::Exit($Jobs.syncroot) 
    }  
}