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https://issues.apache.org/jira/browse/THRIFT-3791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kyle Johnson updated THRIFT-3791:
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Attachment: THRIFT-3791-fix-for-calling-GetLastError-even-on-success.patch
This fixes the logic so that GetLastError is only used when PeekNamedPipe fails.
> Delphi pipe client may fail even in a non-error condition
> ---------------------------------------------------------
>
> Key: THRIFT-3791
> URL: https://issues.apache.org/jira/browse/THRIFT-3791
> Project: Thrift
> Issue Type: Bug
> Components: Delphi - Library
> Affects Versions: 1.0
> Reporter: Kyle Johnson
> Attachments:
> THRIFT-3791-fix-for-calling-GetLastError-even-on-success.patch
>
>
> In TPipeStreamBase.ReadDirect(), the code performs a peek on the pipe. If no
> data is available (bytes = 0), GetLastError is still checked, even though
> Microsoft documentation clearly states that not all functions set the last
> error code to 0 on success
> (https://msdn.microsoft.com/en-us/library/windows/desktop/ms679360(v=vs.85).aspx).
> Furthermore, because PeekNamedPipe only mentions that GetLastError should
> be called on failure, the logic of the if test must be changed.
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