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Add support for MapViewOfFile / UnmapViewOfFile #114

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
We've started hitting this in Chromium, looks like this on Vista:

WARNING: Possible data race during read of size 4 at 371312C0: {{{
   T0 (L{}):
    #0  SHFree C:\Windows\syswow64\SHELL32.dll
    #1  SHPathPrepareForWriteW C:\Windows\syswow64\SHELL32.dll
    #2  SHFileOperationW C:\Windows\syswow64\SHELL32.dll
    #3  SHFileOperationW C:\Windows\syswow64\SHELL32.dll
    #4  base::Delete base/file_util_win.cc:122
    #5  base::ScopedTempDir::Delete base/files/scoped_temp_dir.cc:66
    #6  base::ScopedTempDir::Delete base/files/scoped_temp_dir.cc:63
    #7  base::ScopedTempDir::~ScopedTempDir base/files/scoped_temp_dir.cc:16
    #8  DiskCacheTest::~DiskCacheTest net/disk_cache/disk_cache_test_base.cc:29
    #9  DiskCacheBackendTest_DisableFailure2_Test::`scalar deleting destructor' E:\b\build\slave\chromium-dbg-win-tsan\build\src\build\Debug\net_unittests.exe
    #10 testing::Test::DeleteSelf_ testing/gtest/include/gtest/gtest.h:438
    #11 testing::internal::HandleExceptionsInMethodIfSupported testing/gtest/src/gtest.cc:2051
  Concurrent write(s) happened at (OR AFTER) these points:
   [Pretty much anything in the second stack?]

I think I recall similar reports on Win7, so this might become critical if/when 
we decide to reimage the Chromium bot to W7.

Original issue reported on code.google.com by timurrrr@google.com on 17 Jul 2013 at 1:01