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Add reader and manifest abstractions for osiris_log #194

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Add reader and manifest abstractions for osiris_log #194

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68877a9
Sketch osiris_log_reader behaviour
the-mikedavis Jul 16, 2025
c6f8c0c
Split out default osiris_log_reader impl
the-mikedavis Jul 16, 2025
ccc07e6
Add osiris_log_manifest behaviour and default impl
the-mikedavis Jul 18, 2025
0cae849
Keep the manifest around in #osiris_log{}
the-mikedavis Jul 24, 2025
2f0cce2
osiris_log_manifest: Add events for segment rollovers & chunk writes
the-mikedavis Jul 24, 2025
b298ad2
osiris_log_manifest: Add delete/1 callback
the-mikedavis Jul 24, 2025
a6c070a
Use application environment instead of keys in the config map
the-mikedavis Jul 28, 2025
4174aff
Expose the manifest type
the-mikedavis Jul 28, 2025
7b476b4
osiris_log_manifest: Add close_manifest/1
the-mikedavis Jul 29, 2025
a46c82a
osiris_log: Include the chunk in chunk_written event
the-mikedavis Jul 30, 2025
1c7dbed
Merge osiris_log.hrl back into osiris.hrl
the-mikedavis Jul 30, 2025
71d7870
osiris_log_manifest: Use #chunk_info{} for chunk_written event
the-mikedavis Aug 1, 2025
79c65f1
osiris_log_reader: Allow updating the reader in pread/sendfile
the-mikedavis Aug 4, 2025
9098f90
wip manifest design v2, close over index files entirely
the-mikedavis Aug 11, 2025
afb054d
Include the more log details in info for convenience
the-mikedavis Aug 11, 2025
d1576f9
osiris_log_reader: Hint for whether you're reading a chunk header
the-mikedavis Aug 12, 2025
f5316e7
fixup! wip manifest design v2, close over index files entirely
the-mikedavis Aug 14, 2025
2da75b6
Include chunk count in seg-info
the-mikedavis Aug 14, 2025
ab810d6
osiris_log_manifest: Make log_info() more specific
the-mikedavis Aug 14, 2025
00384c4
Close over triggering retention eval
the-mikedavis Aug 18, 2025
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12 changes: 12 additions & 0 deletions src/osiris.hrl
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,18 @@
-define(FILE_OPTS_WRITE, [raw, binary, write, read]).
-define(INDEX_RECORD_SIZE_B, 29).

%% record chunk_info does not map exactly to an index record (field 'num' differs)
-record(chunk_info,
{id :: osiris:offset(),
timestamp :: non_neg_integer(),
epoch :: osiris:epoch(),
num :: non_neg_integer(),
type :: osiris_log:chunk_type(),
%% size of data + filter + trailer
size :: non_neg_integer(),
%% position in segment file
pos :: integer()
}).

%% chunk types
-define(CHNK_USER, 0).
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