diff options
Diffstat (limited to 'storage/browser')
| -rw-r--r-- | storage/browser/fileapi/file_stream_reader.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/storage/browser/fileapi/file_stream_reader.cc b/storage/browser/fileapi/file_stream_reader.cc index cb87ecb..00d3e22 100644 --- a/storage/browser/fileapi/file_stream_reader.cc +++ b/storage/browser/fileapi/file_stream_reader.cc @@ -8,13 +8,18 @@ namespace storage { +// Int64->double->int64 conversions (e.g. through Blink) may lose some +// precision in the microsecond range. Allow 10us delta. +const int kModificationTimeAllowedDeltaMicroseconds = 10; + // Verify if the underlying file has not been modified. bool FileStreamReader::VerifySnapshotTime( const base::Time& expected_modification_time, const base::File::Info& file_info) { return expected_modification_time.is_null() || - expected_modification_time.ToTimeT() == - file_info.last_modified.ToTimeT(); + (expected_modification_time - file_info.last_modified) + .magnitude() + .InMicroseconds() < kModificationTimeAllowedDeltaMicroseconds; } } // namespace storage |