Andrew Wong has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/11248


Change subject: KUDU-2469 pt 1: add an IOContext
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KUDU-2469 pt 1: add an IOContext

This patch introduces the IOContext class that can be used to pass
strings across layers without excessive plumbing. The goal is to use
this to plumb tablet ids from the tablet/tserver layers down to the
CFile layer so they can be used for error handling, e.g. by calling a
callback that fails the tablet in the event of a CFile corruption.

Change-Id: I645e10a2fda1f2564326b7052e6a0debc5ad738c
---
M src/kudu/fs/CMakeLists.txt
A src/kudu/fs/io_context-test.cc
A src/kudu/fs/io_context.cc
A src/kudu/fs/io_context.h
4 files changed, 210 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/48/11248/1
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I645e10a2fda1f2564326b7052e6a0debc5ad738c
Gerrit-Change-Number: 11248
Gerrit-PatchSet: 1
Gerrit-Owner: Andrew Wong <[email protected]>

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