032472554839227532ae7fac3deb8d7235e2133b - android_system_core - Gitiles

commit	032472554839227532ae7fac3deb8d7235e2133b	[log] [tgz]
author	David Anderson <dvander@google.com>	Wed Aug 19 13:22:43 2020 -0700
committer	David Anderson <dvander@google.com>	Wed Aug 19 13:56:57 2020 -0700
tree	c678374b963a6f44e092d38306f0a23f5ca070c3
parent	5d0eb6659055fa3eac714a78e294fdd026ac732b [diff]

Initial prototype of COW format and API.

This is an initial prototype of the new COW format. It does not have
support for merge sequencing or merge state tracking.

The reader and writer APIs have pure virtual interfaces to support
mocking. The writer implementation performs compression, but the reader
interface does not (yet), it only supports iterating over metadata and
performing basic validation.

Bug: 162274240
Test: manual tests
      cow_api_test gtest
Change-Id: Ib9fddc1f210700688e6786917b023dfabd5fb3d9

fs_mgr/libsnapshot/Android.bp[diff]
fs_mgr/libsnapshot/cow_api_test.cpp[Added - diff]
fs_mgr/libsnapshot/cow_reader.cpp[Added - diff]
fs_mgr/libsnapshot/cow_writer.cpp[Added - diff]
fs_mgr/libsnapshot/include/libsnapshot/cow_format.h[Added - diff]
fs_mgr/libsnapshot/include/libsnapshot/cow_reader.h[Added - diff]
fs_mgr/libsnapshot/include/libsnapshot/cow_writer.h[Added - diff]

7 files changed

tree: c678374b963a6f44e092d38306f0a23f5ca070c3