Dimitri Vorona created ARROW-2701: ------------------------------------- Summary: [C++] Make MemoryMappedFile resizable Key: ARROW-2701 URL: https://issues.apache.org/jira/browse/ARROW-2701 Project: Apache Arrow Issue Type: New Feature Components: C++ Affects Versions: 0.9.0 Reporter: Dimitri Vorona
Hi, I don't see any reason for the MemoryMappedFile not to be resizable, e.g. like it is in Python stdlib. This patch changes the base class of MemoryMappedFile to ResizableBuffer and implements mmap resizing similar to [mmap.resize|https://github.com/python/cpython/blob/415bc46a78e785f357c8960ae70f18a6b6cccbb6/Modules/mmapmodule.c#L454] from python stdlib. If the change is ok, we should probably change the comment [here|https://github.com/apache/arrow/blob/master/python/pyarrow/tests/test_io.py#L577], too. Cheers, Dimitri. -- This message was sent by Atlassian JIRA (v7.6.3#76005)