Wes McKinney created ARROW-209:
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Summary: [C++] Broken builds: llvm.org apt repos are unavailable
Key: ARROW-209
URL: https://issues.apache.org/jira/browse/ARROW-209
Project: Apache Arrow
Issue
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https://issues.apache.org/jira/browse/ARROW-209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311177#comment-15311177
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Wes McKinney commented on ARROW-209:
See https://github.com/travis-ci/apt-source-whitel
Hi Jacob,
The current rough prototype/proposal of the IPC via shared memory is
to do a depth first traversal of each arrays buffer and write them out
to a contiguous memory block. Metadata about array types and
locations of buffers is persisted at the end of memory block in
flatbuffer format [1].
Having become familiar with the Arrow memory layout, and taking a stab at
an implementation in the Julia language, I've come up with a perhaps naive
question.
A "type" (class) I have defined so far is:
immutable Column{T} <: ArrowColumn{T}
buffer::Vector{UInt8} # potential reference to mmap
