Add FairnessScheduler and TokenExecutor integration#568

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chall37 wants to merge 31 commits into

gnachman:masterfrom

chall37:feat/fairness-scheduler-v2

Commits on Feb 3, 2026

Add backpressure counter for monitoring token queue load
chall37
committed
Fix backpressure counter initialization and document high-priority bypass
chall37
committed
Add backpressure release handler and queue cleanup accounting
chall37
committed
Add FairnessScheduler with feature flag integration
chall37
committed
Add feature flag gating tests and fix sessionId=0 bug
chall37
committed
Remove accidentally added utility script
chall37
committed
Added thread access annotations.
chall37
committed
Add queue access annotations to new TokenExecutor vars.
chall37
committed
Add queue annotations and preconditions to executeTurn/cleanupForUnregistration.
chall37
committed
Add dispatchPreconditions to FairnessScheduler internal methods.
chall37
committed
Extract signalAndRelease() helper in TokenArray.
chall37
committed
Move FairnessSchedulerExecutor conformance to extension.
chall37
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Cache useFairnessScheduler flag at TokenExecutorImpl init time.
chall37
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Replace executionScheduled flag with IdempotentOperationJoiner
chall37
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Rewrite executeTurn() to align with execute() patterns
chall37
committed
Add TokenExecutorDeferCompletionOrderingTests for high-priority task ordering.
chall37
committed
Preserve tokens on unregister and move registration to setTerminalEnabled
chall37
committed
Fix deadlock in FairnessScheduler by using private Mutex instead of mutation queue
chall37
committed
Add session restoration tests and fix cleanup tests for token preservation
chall37
committed
Improve fairness scheduler test quality and reliability
chall37
committed
Remove dead discardAllAndReturnCount() methods from TwoTierTokenQueue
chall37
committed
Restore async dispatch for FairnessScheduler hot path to fix performance regression
chall37
committed
Increase FairnessScheduler token budget from 500 to 1000
chall37
committed
Optimize FairnessScheduler callback path and skip legacy session tracking
chall37
committed
Add threading documentation to FairnessSchedulerExecutor protocol methods
chall37
committed
Set isRegistered flag on FairnessScheduler registration
chall37
committed
Add thread access documentation to TokenExecutorImpl member variables
chall37
committed
Add missing VT100ScreenDelegate methods to FakeSession
chall37
committed
Change dispatchPrecondition gate from DEBUG to ITERM_DEBUG
chall37
committed
Merge upstream/master: resolve VT100ScreenTests conflict with correct String? signature
chall37
committed

Commits on Feb 4, 2026

Address PR #568 review feedback
chall37
committed

Provide feedback

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Add FairnessScheduler and TokenExecutor integration#568

Add FairnessScheduler and TokenExecutor integration#568
chall37 wants to merge 31 commits into
gnachman:masterfrom
chall37:feat/fairness-scheduler-v2

Commits on Feb 3, 2026

Add backpressure counter for monitoring token queue load

Fix backpressure counter initialization and document high-priority bypass

Add backpressure release handler and queue cleanup accounting

Add FairnessScheduler with feature flag integration

Add feature flag gating tests and fix sessionId=0 bug

Remove accidentally added utility script

Added thread access annotations.

Add queue access annotations to new TokenExecutor vars.

Add queue annotations and preconditions to executeTurn/cleanupForUnregistration.

Add dispatchPreconditions to FairnessScheduler internal methods.

Extract signalAndRelease() helper in TokenArray.

Move FairnessSchedulerExecutor conformance to extension.

Cache useFairnessScheduler flag at TokenExecutorImpl init time.

Replace executionScheduled flag with IdempotentOperationJoiner

Rewrite executeTurn() to align with execute() patterns

Add TokenExecutorDeferCompletionOrderingTests for high-priority task ordering.

Preserve tokens on unregister and move registration to setTerminalEnabled

Fix deadlock in FairnessScheduler by using private Mutex instead of mutation queue

Add session restoration tests and fix cleanup tests for token preservation

Improve fairness scheduler test quality and reliability

Remove dead discardAllAndReturnCount() methods from TwoTierTokenQueue

Restore async dispatch for FairnessScheduler hot path to fix performance regression

Increase FairnessScheduler token budget from 500 to 1000

Optimize FairnessScheduler callback path and skip legacy session tracking

Add threading documentation to FairnessSchedulerExecutor protocol methods

Set isRegistered flag on FairnessScheduler registration

Add thread access documentation to TokenExecutorImpl member variables

Add missing VT100ScreenDelegate methods to FakeSession

Change dispatchPrecondition gate from DEBUG to ITERM_DEBUG

Merge upstream/master: resolve VT100ScreenTests conflict with correct String? signature

Commits on Feb 4, 2026

Address PR #568 review feedback