We'd observed a bug in which an unchanged file was nevertheless
being redundantly transmitted for backup on every backup pass.
The underlying issue turns out to have been the FileBackupHelper
base implementation's logic for diffing the prior-state file
set against the current state, in the case when there had been
deletions of prior files. In addition, there was also a
parallel bug in which file checksums were not calculated
properly in some cases, leading to at least one additional
redundant backup of the file in question.
Bug 18694053
Change-Id: Ie0dec06486b5fef4624561737019569c85d6b2a0
Changes in this patch include
[x] Use %zu for size_t, %zd for ssize_t
[x] Some minor changes have been done to conform with
standard JNI practice (e.g. use of jint instead of int
in JNI function prototypes)
Change-Id: Id1aaa7894a7d0b85ac7ecd7b2bfd8cc40374261f
Signed-off-by: Ashok Bhat <ashok.bhat@arm.com>
Signed-off-by: Craig Barber <craig.barber@arm.com>
Signed-off-by: Kévin PETIT <kevin.petit@arm.com>
Signed-off-by: Marcus Oakland <marcus.oakland@arm.com>
OBB backup/ restore is no longer handled within the target app
process. This is done to avoid having to require that OBB-using
apps have full read/write permission for external storage.
The new OBB backup service is a new component running in the
same app as the already-existing shared storage backup agent.
The backup infrastructure delegates backup/restore of apps'
OBB contents to this component (because the system process
may not itself read/write external storage).
From the command line, OBB backup is enabled by using new
-obb / -noobb flags with adb backup. The default is noobb.
Finally, a couple of nit fixes:
- buffer-size mismatch between the writer and reader of chunked
file data has been corrected; now the reading side won't be
issuing an extra pipe read per chunk.
- bu now explicitly closes the transport socket fd after
adopting it. This was benign but triggered a logged
warning about leaked fds.
(Cherrypicked)
Change-Id: I471f6348abcccb7bf1e1710b7beda9f23de53e14
