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We can return a FileDescriptor object, which encapsulates logic needed
to write to a COW. This way, filesystem verfication action can use the
turend value directly for computing verity and hash the partition.
Test: th
Change-Id: Iafe9699ef0cc15961641fc94f8ad2820230a56e1
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When DynamicPartitionControlAndroid is constructed, it initializes both
source and target slot to -1. These values get updated during
PreparePartitionsForUpdate call. And we only
PreparePartitionsForUpdate() when applying an OTA or applocating space
for an OTA(not when verifying OTA metadata). Which means if
VerifyPayloadApplicable() is called before any call two other APIs, we
could be using an "Uninitialiazed" dynamic partition control.
To mitigate this problem, we pass in source_slot at ctor of
DynamicPartitionControl, also make IsDynamicPartition() api take in a
slot number to avoid reading uninitialized member fields.
Bug: 181643302
Test: apply an OTA, abort, restart update_engine, verify a payload
Change-Id: I9a8a0fe8a9aca48e91241e15bdec33a1c1228553
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This function returns whether Virtual A/B
compression is enabled for the ongoing update.
Test: TH
Bug: 178732971
Change-Id: I781802443afd1d8deac046a8da198658220f7ba0
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With VABC, we no longer need to map all partitions before
reading/writing, so don't try to map them.
1. modify GetPartitionDevice to return empty path for target partitions
on VABC
2. Add a separate GetMountableTargetDevice for obtaining a mountable
device path, specifically for postinstall
Test: treehugger
Change-Id: Ib1f608914fc49c677ce7389140ca79b028171191
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Test: treehugger
Change-Id: I655e4d6114a25c58857679985cd5e08581c0faab
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mock_dynamic_partition_control_android
The mock contains android specific behaviors, so appending the filename
with "android"
Test: treehugger
Change-Id: Ic6e53e07a4645e4f854c1fb22e0fa9f7f911bef3
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