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Add fix of process objects for processes that have exited. - #16946

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Paul Higinbotham (PaulHigin) merged 4 commits into
PowerShell:masterfrom
PaulHigin:fix-pshost
Mar 2, 2022
Merged

Add fix of process objects for processes that have exited.#16946
Paul Higinbotham (PaulHigin) merged 4 commits into
PowerShell:masterfrom
PaulHigin:fix-pshost

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@PaulHigin Paul Higinbotham (PaulHigin) commented Mar 1, 2022 •
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PR Summary

This PR fixes the Enter-PSHostProcess and Get-PSHostProcessInfo cmdlets so that they will ignore processes that have already exited.

PR Context

.NET GetProcess method sometimes returns process objects for processes that have recently exited. In addition, the exited process object will throw if some properties are accessed (process.ProcessName), causing the cmdlet to fail and in turn causing some tests to fail.
This fix ignores already exited process objects.

This appears to be a .NET 7 regression, and I have created an Issue in that repo:
dotnet/runtime#66096

PR Checklist

daxian-dbw
Dongbo Wang (daxian-dbw) approved these changes Mar 1, 2022
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@daxian-dbw Dongbo Wang (daxian-dbw) left a comment

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LGTM.
I saw the same error thrown from the Get-PSHostProcessInfo test at https://dev.azure.com/powershell/PowerShell/_build/results?buildId=95294&view=logs&j=65e467a7-433b-584d-c8f4-72fcd5732f9d&t=6a14d04a-9a6d-5c41-f839-531117eeb032&l=3913

Will this change fix that too?

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Paul Higinbotham (PaulHigin) commented Mar 2, 2022

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Dongbo Wang (@daxian-dbw) Yes, I intended to fix both Enter-PSHostProcess and Get-PSHostProcessInfo tests. The tests results I see above appear to no longer have those test failures. I'll check in these changes once I have verified.

iSazonov
Ilya (iSazonov) reviewed Mar 2, 2022
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Comment thread src/System.Management.Automation/engine/remoting/commands/EnterPSHostProcessCommand.cs Outdated
Comment thread src/System.Management.Automation/engine/remoting/commands/EnterPSHostProcessCommand.cs
Comment thread src/System.Management.Automation/engine/remoting/commands/EnterPSHostProcessCommand.cs
Comment thread src/System.Management.Automation/engine/remoting/commands/EnterPSHostProcessCommand.cs Outdated
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This PR has 53 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!

Quantification details 

Label      : Small
Size       : +34 -19
Percentile : 21.2%

Total files changed: 2

Change summary by file extension:
.cs : +33 -18
.resx : +1 -1

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@ghost ghost removed this from the 7.3.0-preview.2 milestone Mar 2, 2022
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Deleted user (ghost) commented Mar 2, 2022

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Open PRs should not be assigned to milestone, so they are not assigned to the wrong milestone after they are merged. For backport consideration, use a backport label.

@ghost ghost removed this from the 7.3-Consider milestone Mar 2, 2022
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Deleted user (ghost) commented Mar 2, 2022

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Open PRs should not be assigned to milestone, so they are not assigned to the wrong milestone after they are merged. For backport consideration, use a backport label.

@PaulHigin

Paul Higinbotham (PaulHigin) commented Mar 2, 2022

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Failing tests are known issues. This change fixes the Enter-PSHostProcess and Get-PSHostProcessInfo test failures.

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Paul Higinbotham (PaulHigin) merged commit df460b7 into PowerShell:master Mar 2, 2022
@PaulHigin
Paul Higinbotham (PaulHigin) deleted the fix-pshost branch March 2, 2022 21:53
@daxian-dbw Dongbo Wang (daxian-dbw) added the CL-General Indicates that a PR should be marked as a general cmdlet change in the Change Log label Mar 21, 2022
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Deleted user (ghost) commented Mar 21, 2022

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🎉v7.3.0-preview.3 has been released which incorporates this pull request.:tada:

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Thatgfsj (Thatgfsj) pushed a commit to Thatgfsj/PowerShell that referenced this pull request Aug 6, 2026
@PaulHigin
Add fix of process objects for processes that have exited. (PowerShel…
1aca61a 
…l#16946)

* Add fix for process objects for processes that have exited.

* Fix code factor

* Fix typo

* Add try/catch for possible race condition on exiting process.
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@iSazonov Ilya (iSazonov) iSazonov left review comments
@daxian-dbw Dongbo Wang (daxian-dbw) daxian-dbw approved these changes

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@PaulHigin Paul Higinbotham (PaulHigin)

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@PaulHigin @daxian-dbw @iSazonov @TravisEz13