io: implement batch operations with linear execution - #380
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Implement batchAwaitAsync to execute operations linearly, moving each to the completed list. batchAwaitConcurrent returns ConcurrencyUnavailable since true concurrent execution is not yet implemented. batchCancel clears the pending list. Add tests for both awaitAsync and awaitConcurrent behavior.
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Actionable comments posted: 1
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Verify each finding against current code. Fix only still-valid issues, skip the
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Inline comments:
In `@src/io.zig`:
- Around line 419-428: The code removes the submission from batch.submitted
(setting batch.submitted.head and possibly tail using submission.node.next)
before calling operateImpl, which causes orphaning if operateImpl returns
error.Canceled; instead, do not unlink the node until operateImpl completes
successfully: either move the unlink logic (updates to
batch.submitted.head/tail) to immediately after operateImpl returns a
non-canceled result, or if you must attempt operateImpl while unlinked, ensure
you reinsert submission.node back into batch.submitted (restoring head/tail)
when operateImpl returns error.Canceled; update references to
submission.node.next, batch.submitted.head, batch.submitted.tail, operateImpl,
and the completed-list insertion so the node is only removed from submitted when
you will move it to batch.completed.
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Fix all unresolved CodeRabbit comments on this PR:
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Match std Threaded.zig approach: track progress with local variables and use errdefer to restore submitted.head on cancellation.
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Summary
batchAwaitAsyncto execute operations linearly, moving each to the completed listbatchAwaitConcurrentreturnsConcurrencyUnavailable(true concurrent execution not yet implemented)batchCancelclears the pending listTest plan
awaitAsyncwith file read operationawaitConcurrentreturns expected error./check.sh --filter batchpasses