[jira] [Updated] (ARROW-2701) [C++] Make MemoryMappedFile resizable

2018-07-02 Thread Dimitri Vorona (JIRA)


 [ 
https://issues.apache.org/jira/browse/ARROW-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dimitri Vorona updated ARROW-2701:
--
External issue URL: https://github.com/apache/arrow/pull/2205  (was: 
https://github.com/apache/arrow/pull/2134)

> [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
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 9h 40m
>  Remaining Estimate: 0h
>
> 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.



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[jira] [Updated] (ARROW-2701) [C++] Make MemoryMappedFile resizable

2018-06-14 Thread ASF GitHub Bot (JIRA)


 [ 
https://issues.apache.org/jira/browse/ARROW-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated ARROW-2701:
--
Labels: pull-request-available  (was: )

> [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
>Priority: Major
>  Labels: pull-request-available
>
> 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.



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[jira] [Updated] (ARROW-2701) [C++] Make MemoryMappedFile resizable

2018-06-12 Thread Dimitri Vorona (JIRA)


 [ 
https://issues.apache.org/jira/browse/ARROW-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dimitri Vorona updated ARROW-2701:
--
External issue URL: https://github.com/apache/arrow/pull/2134

> [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
>Priority: Major
>
> 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.



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