[Bug 31987] New: FindNextFile/DeleteFile loop fails for directories with many files

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=31987

             Bug #: 31987
           Summary: FindNextFile/DeleteFile loop fails for directories
                    with many files
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: kernel32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: aric at codeweavers.com
    Classification: Unclassified


Created attachment 42153
  --> http://bugs.winehq.org/attachment.cgi?id=42153
patch to show the issue

Doing a looping FindNextFile/DeleteFile is suppose to work on windows.

On wine if your directory contains enough files to fill the data in
FIND_FIRST_INFO. Then when FindNextFile reloads the directory structure it
causes it so skip a bunch of files because the state of the directory has
changed.

The attached patch adds a wine test that demonstrates the issue.

You will notice in the trace a jump 

file.c:2319: c:\test-dir\file38.a.a
file.c:2319: c:\test-dir\file68.a.a

this means files 39 - 67 do not get deleted. resulting in the RemoveDirectory
failing.

This issue affects the MechWarrior Online Patcher.

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