从 C# PowerShell cmdlet 返回退出代码

Question

I am writing a PowerShell cmdlet in C# and this cmdlet is called by a parent process that I have no control over. The parent process has mechanisms in place to handle persistent reboots from the cmdlet if the exit code of the process is 3010. The problem here is that I cannot figure out how to provide a value for the exit code given that the entry point into the cmdlet is:

protected override void ProcessRecord() { ... }

I have read that cmdlets do not generate an exit code when researching the $LASTEXITCODE PS variable. I'm fairly new to PowerShell in general so I am not sure if I am going about this the right way. Does anyone have a way that I can accomplish what I have described?

The cmdlet gets loaded and called by a PS script something like

Import-Module "C:\testing\test.dll"
Run-MyCmdlet

Answer 1

Are looking for a way to determine if the module loaded or for your cmdlet to indicate it failed?

To determine if the module loaded or failed look at the $ErrorActionPreference variable. ( https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-7.2#erroractionpreference )

If you want your cmdlet to report a terminating error look at Cmdlet.ThrowTerminatingError(ErrorRecord) method. ( https://docs.microsoft.com/en-us/dotnet/api/system.management.automation.cmdlet.throwterminatingerror?view=powershellsdk-7.0.0 )