[ARROW-4956] [C#] Allow ArrowBuffers to wrap external Memory in C#

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: C#
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21462
• Assignee: Prashanth Govindarajan
• Reporter: Prashanth Govindarajan
• Created: 18/Mar/19 23:55
• Updated: 11/Jan/23 07:37
• Resolved: 06/May/19 20:58

Description

At the moment, the C# ArrowBuffer implementation is immutable. The only way to build it is through the provided builders. It also ought to be able to wrap external memory as a zero copy op. The C++ implementation exposes this as a GetMutableValue() method. Example use cases are similar to when a NumPy array is wrapped in an ArrowBuffer in pyArrow.

Issue Links

• links to: GitHub Pull Request #3971