Rongsong Shen
08df64930b
Replaces sim_picker_thread_fn() (the always-PEND placeholder) with the real sched_job_picker()/sched_allocator() threads (task 3.1), spawned against &(sim->core) in sched_sim_driver_run(). Simulation mode now genuinely uses the jbuf capacity-1 rendezvous for the first time (confirmed still exactly one producer/one consumer). Adds sched_election.c to sched_sim_isolation_lib. Fixes bug-1829 (blocking, only reachable once sim_allocator() actually called sched_make_allocation() for the first time): core->seqjob_ allocator/parjob_allocator were never bootstrapped for simulation mode at all. Fixed via new sim_alloc.c (sim_bootstrap_seqjob_allocator()/ sim_bootstrap_parjob_allocator()), mirroring the sim_picker.c/ sim_limit.c precedent. That fix's own workaround -- a throwaway xce_scheduler_t wrapper satisfying seqjob/parjob's init_fn -- has a documented, narrow side effect: prepare_allocation_hook fan-out during a live seqjob/parjob dispatch attempt reaches the wrapper's own separate plugin registry, not sim->core.plugins, so a plugin registered only against the real sim core (the limit plugin) isn't reached for host-scoped matching during a live dispatch yet. Documented in design.md's new "Known Seam Gap" section; task 4.3 added to tasks.md to close it before task 5.2's acceptance test can pass for the host-scoped case. TDD: new end-to-end test drives a real .replay with an empty decisions array (ruling out reconciliation) through the real thread pair, proving a genuine DISPATCH from live resource availability. 25 pre-existing white-box sim/repl test files given link-satisfying stubs reproducing the OLD always-PEND contract unchanged -- their own assertions are untouched (task 5.3's job to reconcile deeper). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RLSNJhNoULvVcUhXEFafQC |
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