This change removes the local copy of the flag file in PackageTable, and
FlagValueList.
PackageTable copied the entire flag file into memory, and the
FlagValueList copied the entire flag value list into memory. In this
change FlagValueList directly access the flag value list in the memory.
PackageTable will iterate the file, and find the target package node.
Change-Id: Id766c28b71a54290b266cc5f3f404f5c82590da2
Test: atest aconfig_storage_file.test.java aconfig_storage_read_api.test.java
Bug: 352078117
This change implements storage files in java to remove the dependencies
on JNI.
Bug: 352078117
Test: atest aconfig_storage_file.test.java
Change-Id: I34438576d09d0aa31eabc60f472e71cebf1552a0
added a new function called list_flag_with_info to list all the flags
given all four storage files (package.map, flag.map, flag.val, flag.info).
also exported this api thru cxx interface so aconfigd can use it.
Bug: b/312444587
Test: atest -c
Change-Id: Ibbfe657b980d40e25e5e28962b930338192e2d98
Current aconfig_storage_file crate contains two things: 1,
aconfig storage file definition (which is used by aconfig crate for
storage file creation) and 2, flag storage file read api. With this
change, we are splitting 2 into its own crate aconfig_storage_read_api
In the long run, there will be 3 crates for aconfig_storage
1, aconfig_storage_file
It contains aconfig storage file definition, as well as a binary to help
print/dump aconfig storage binary files into some readable format.
2, aconfig_storage_read_api
This crate contains flag read apis. This crate depends on
aconfig_storge_file crate. This crate will be used by codegen.
3, aconfig_storage_write_api
This crate contains flag write apis. This crate depends on
aconfig_storage_file crate. This crate will only be used by aconfig
daemon to update flag values.
Bug: b/321077378
Test: atest aconfig_storage_read_api.test; atest
aconfig_storage_file.test; atest aconfig_storage_read_api.test.rust;
atest aconfig_storage_read_api.test.cpp
Change-Id: Ia6afdc40a45c7c59652fbfd123c2b77bf6666dd9
1, update android build soong targets as now libmemmap2 has been
introduced to android code base.
2, add three public apis for package offset query, flag offset query,
and flag value query. These apis assume the stoarge location pb file is
at /metadata/aconfig/aconfig_storage.pb. This file will be created by
storage daemon. For testing purposes, we also expose impl version of
these apis that accept a custom storage location pb file.
Bug: 321077378
Test: atest aconfig_storage_file.test
Change-Id: I91b284e2dfcdb8ff3674d463ed1c13696d9ae020
This module is repsonsible for finding the storage file location based on a
pb file and then map these storage files into memory using memmap2
crate. The mapped files are cached in a static hashmap in this module.
Note that memmap2 crate has not been introduced to AOSP yet as a 3p
crate. It is in the process of importing to AOSP ATM. So in src/lib.rs,
we only include this module if we are building the target using cargo.
Also, the test storage files: package.map, flag.map and flag.val are
generated based on the storage test aconfig files in
aconfig/aconfig/tests dir. With aconfig create-cache command first to
produce cache files, and then aconfig create-storage command to create
each storage file.
aconfig create-cache --package com.android.aconfig.storage.test_1 --container system --declarations ./storage_test_1.aconfig --cache com.android.aconfig.storage.test_1.cache
aconfig create-cache --package com.android.aconfig.storage.test_2 --container system --declarations ./storage_test_2.aconfig --cache com.android.aconfig.storage.test_2.cache
aconfig create-cache --package com.android.aconfig.storage.test_4 --container system --declarations ./storage_test_4.aconfig --cache com.android.aconfig.storage.test_4.cache
aconfig create-storage --container system --cache ./com.android.aconfig.storage.test_1.cache --cache ./com.android.aconfig.storage.test_2.cache --cache ./com.android.aconfig.storage.test_4.cache --file flag_val --out ./flag.value
aconfig create-storage --container system --cache ./com.android.aconfig.storage.test_1.cache --cache ./com.android.aconfig.storage.test_2.cache --cache ./com.android.aconfig.storage.test_4.cache --file package_map --out ./package.map
aconfig create-storage --container system --cache ./com.android.aconfig.storage.test_1.cache --cache ./com.android.aconfig.storage.test_2.cache --cache ./com.android.aconfig.storage.test_4.cache --file flag_map --out ./flag.map
Bug: 321077378
Test: atest aconfig_storage_file.test
Change-Id: Id4bd26ce1a2513cdda201b479cec2b8c04faabfe
