/// <summary>
/// Runs many commands with the help of a RunspacePool.
/// </summary>
/// <param name="args">This parameter is unused.</param>
private static void Main(string[] args)
{
// Creating and opening runspace pool. Use a minimum of 1 runspace and a maximum of
// 5 runspaces can be opened at the same time.
RunspacePool runspacePool = RunspaceFactory.CreateRunspacePool(1, 5);
runspacePool.Open();
using (runspacePool)
{
// Define the commands to be run.
List <PowerShell> powerShellCommands = new List <PowerShell>();
// The command results.
List <IAsyncResult> powerShellCommandResults = new List <IAsyncResult>();
// The maximum number of runspaces that can be opened at one time is
// 5, but we can queue up many more commands that will use the
// runspace pool.
for (int i = 0; i < 100; i++)
{
// Using a PowerShell object, run the commands.
PowerShell powershell = PowerShell.Create();
// Instead of setting the Runspace property of powershell,
// the RunspacePool property is used. That is the only difference
// between running commands with a runspace and running commands
// with a runspace pool.
powershell.RunspacePool = runspacePool;
// The script to be run outputs a sequence number and the number of available runspaces
// in the pool.
string script = String.Format(
"write-output ' Command: {0}, Available Runspaces: {1}'",
i,
runspacePool.GetAvailableRunspaces());
// The three lines below look the same running with a runspace or
// with a runspace pool.
powershell.AddScript(script);
powerShellCommands.Add(powershell);
powerShellCommandResults.Add(powershell.BeginInvoke());
}
// Collect the results.
for (int i = 0; i < 100; i++)
{
// EndInvoke will wait for each command to finish, so we will be getting the commands
// in the same 0 to 99 order that they have been invoked withy BeginInvoke.
PSDataCollection <PSObject> results = powerShellCommands[i].EndInvoke(powerShellCommandResults[i]);
// Print all the results. One PSObject with a plain string is the expected result.
PowerShell02.PrintCollection(results);
}
}
}
