Zach Brown 5487aee6a7 Read items with manifest entries from server ...

Item reading tries to directly walk the manifest to find segments to
read.  That doesn't work when only the server has read the ring and
loaded the manifest.

This adds a network message to ask the server for the manifest entries
that describe the segments that will be needed to read items.

Previously item reading would walk the manifest and build up native
manifest references in a list that it'd use to read.   To implement the
network message we add request sending, processing, and reply parsing
around those original functions.  Item reading now packs its key range
and sends it to the server.  The server walks the manifest and sends the
entries that intersect with the key range.  Then the reply function
builds up the native manifest references that item reading will use.

The net reply functions needed an argument so that the manifest reading
request could pass in the caller's list that the native manifest
references should be added to.

Signed-off-by: Zach Brown <zab@versity.com>

2017-04-18 13:51:10 -07:00

kmod

Read items with manifest entries from server

2017-04-18 13:51:10 -07:00

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