RUMM-2177: Use TLV format for data storage #931
Merged
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What does this PR do?
This change aligns the binary format used to write data to the disk with format implemented in DataDog/dd-sdk-ios#841.
For every event received we are going to write
meta
+event
in the TLV (Type-Length-Value) format, where the format itself for each block (meta
orevent
) has the following structure:It is safe to merge it without cleaning existing data, because this PR targets SDK v2 branch, where the change later will be done to use SDK instance ID in the feature folder naming, so data in the SDK v2 read/write paths won't overlap with data from existing SDK (but during the current development existing data should be erased from emulator).
Tests are verified against the latest testable commit.
Review checklist (to be filled by reviewers)