jvanstraten commented on a change in pull request #12116:
URL: https://github.com/apache/arrow/pull/12116#discussion_r803686136
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File path: cpp/src/arrow/memory_pool.h
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@@ -63,6 +63,42 @@ class MemoryPoolStats {
/// take care of the required 64-byte alignment.
class ARROW_EXPORT MemoryPool {
public:
+ class ARROW_EXPORT ImmutableZeros {
Review comment:
Okay, `ImmutableZeros` now implements `Buffer` and has its
implementation hidden.
As I looked at the Buffer interface a bit better I also figured a
specialized memory manager was probably in order, since these buffers have
different, managed allocate operations. With that, I *think* the interface for
using immutable zero CPU buffers is now fully symmetric to the one for regular,
mutable CPU buffers.
81aa078
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