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https://issues.apache.org/jira/browse/AVRO-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thiruvalluvan M. G. reassigned AVRO-1488:
-----------------------------------------
Assignee: Ben Webb
> FileBufferCopyIn::seek does not work on Windows systems
> -------------------------------------------------------
>
> Key: AVRO-1488
> URL: https://issues.apache.org/jira/browse/AVRO-1488
> Project: Apache Avro
> Issue Type: Bug
> Components: c++
> Affects Versions: 1.7.6
> Environment: Win32
> Reporter: Ben Webb
> Assignee: Ben Webb
> Priority: Major
> Labels: easyfix, patch
> Attachments: win32-seek.patch
>
>
> FileBufferCopyIn::seek() on a Windows system generally fails with an
> exception. This is because it is implemented as
> if (::SetFilePointer(...) != INVALID_SET_FILE_POINTER) throw(...)
> This test is the opposite of what it should be! SetFilePointer returns the
> new pointer on success (sort of), just like lseek. See
> http://msdn.microsoft.com/en-us/library/windows/desktop/aa365541%28v=vs.85%29.aspx
> The fix is pretty simple - reverse the test. But apparently
> INVALID_SET_FILE_POINTER is also a valid file pointer (that's not confusing
> at all - thanks Microsoft!) so you also need to check the Windows error
> indicator to make absolutely sure. I'll attach a patch.
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