[jira] [Created] (ARROW-2386) [Plasma] Change PlasmaClient::Create API

["Philipp Moritz (JIRA)" <ji...@apache.org>]

Philipp Moritz created ARROW-2386:
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             Summary: [Plasma] Change PlasmaClient::Create API
                 Key: ARROW-2386
                 URL: https://issues.apache.org/jira/browse/ARROW-2386
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Plasma (C++)
            Reporter: Philipp Moritz


Now that the Get API is refactored in [https://github.com/apache/arrow/pull/1807,] we should do the same for the Create API.

Proposal:

Have a MutablePlasmaBuffer class, which is returned by Create
{code:java}
Status Create(int64_t data_size, int64_t metadata_size, std::shared_ptr<MutablePlasmaBuffer>* buffer)
{code}
This allocates the data in shared memory, but does not associate it with the object id yet. This way we get get rid of the Abort() call.

Move the Seal() method into the MutablePlasmaBuffer and let it return the object ID.

 

This is very similar to what [~pitrou] suggested here: https://github.com/apache/arrow/pull/1807



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