* changes:
Remove deprecated callback function support. This is the last of a 3-part change to modify the camera to use a more streamlined callback interface. This change removes the old code. Bug 1884362
* changes:
Use a ref-counted callback interface for Camera. This allows the camera service to hang onto the callback interface until all callbacks have been processed. This prevents problems where pending callbacks in binder worker threads are processed after the Java camera object and its associated native resources have been released. Bug 1884362
This allows the camera service to hang onto the callback interface
until all callbacks have been processed. This prevents problems
where pending callbacks in binder worker threads are processed
after the Java camera object and its associated native resources
have been released.
Bug 1884362
The reason we need this count is a new CameraService::connect() request may
come in while the previous Client's destructor has not been run or is still
running. If the last strong reference of the previous Client is gone but
destructor has not been run, we should not allow the new Client to be created
because we need to wait for the previous Client to tear down the hardware
first.
This change adds a fixed-size metadata block at the head of each file's content
entity. The block is versioned, and fixed-size on the theory that it might be
nice to be able to recover the content (if not the full metadata) of the files
if we're ever confronted with data backed up some hypothetical future helper
that stored expanded metadata.
The net effect is that now on restore, we assign the same access mode to the
file that it originally had when backed up.
Also, some of the code was failing to properly free transient heap-based buffers
when it encountered errors. This has been fixed with the addition of a tiny
stack-based object whose job it is to free() its designated pointer from its
destructor.
This change puts the file's access mode into the saved-state blob used by the
file backup helpers. The tests have been updated for the new blob content
format.
What this change *doesn't* do is actually backup/restore the file mode. This
change is a prerequisite for that, but mode preservation in backup/restore will
require adding metadata to the backup data stream itself, so will be approached
a bit more carefully.
(Also fixed one outright bug in the test program: ReadEntityData() had been
changed to return a ssize_t union of either a byte-count or a negative number
indicating error, but the test program was still assuming that nonzero == error,
and was spuriously failing.)
* changes:
Helper API cleanup. Allows multiple helpers to function, because they'll always go in the same order, and this lets us not have to write headers to keep them paired.
* changes:
At boot time, add additional per-device information to the kernel randomness pool. This helps increase the quality / uniqueness of the random numbers, and is especially important during the device's first boot, when insufficient randomness is available.
* changes:
Fix issue with shared user permissions. just look in the requested permissions of packages within shared user setting rather than the granted permissions
