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feat(scheduler-core): implement core event batch push interface (task 4.3)

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Defines xce_core_event_type_t/xce_core_event_t (9 event kinds: config,
job, worker, resource, resval full/delta, job state change, job update,
queue update, job rusage) in core.h. Implements xce_core_push_events()
in a new core_events.c (split out of core.c to stay under the 800-line
cap): rejects -EBUSY mid-session, otherwise applies each event's core-
state mutation and fires the corresponding picker hook synchronously,
exactly once per event, before returning. CONFIG_PUSH decomposes the
pushed config's embedded queues/resources/resvals via shared helpers
(also reused by QUEUE_UPDATE's upsert path), mirroring the existing
sched_init_config()/sched_init_resources()/sched_init_sharedInst()/
sched_init_queues(). Narrows sched_resolve_job_picker() to take
xce_sched_core_t* (pure type change, zero behavior change). Purely
additive — not wired into the live scheduling path yet (task 5.x).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019dw5WnN3DXStaEaPYfACU1
This commit is contained in:
Rongsong Shen 2026-08-03 16:05:33 +00:00
parent e9b5c3f589
commit e6c0a2448a
Signed by: rshen
SSH key fingerprint: SHA256:8Vf2pZ3h6rJa7EhGK+WaAQ9Mta/apZvteW6g9U/WKKk
10 changed files with 1613 additions and 43 deletions
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20
src/scheduler/include/scheduler.h
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@ -112,21 +112,11 @@ extern int sched_init_config(xce_scheduler_t* sched, xce_conf4sched_t*);
* default to sched->job_pick_plugin when unset. See the field comment on
* xce_scheduler_t above -- this does NOT resolve/register the name. */
extern void sched_set_default_job_pick_plugin(xce_scheduler_t*);
/* Req 1 AC 6 / Req 2 AC 5 (scheduler-core spec, task 2.4): resolves
* sched->job_pick_plugin against the plugin registry (the same
* plugin_register()/key_find() mechanism every other plugin category
* uses) and validates the result actually implements the picker MUST
* hooks (xce_job_picker_iface_t: next_job, begin_session, end_session,
* on_dispatch, on_pend). Returns 0 and sets *out on success; a negative
* errno on failure:
* -EINVAL bad arguments, or sched->job_pick_plugin is unset (NULL),
* or the name IS registered but is not a usable picker
* -ENOENT the configured name is not registered at all
* Called from sched_init() (before the picker thread is created, so an
* unregistered/non-picker name fails scheduler startup synchronously) and
* from sched_job_picker() (the picker thread, at thread start) -- one
* implementation, two call sites, no duplicated lookup logic. */
extern int sched_resolve_job_picker(xce_scheduler_t*, xce_sched_plugin_t**);
/* sched_resolve_job_picker relocated to core.h (scheduler-core spec, task
* 4.3) -- it now operates on xce_sched_core_t*, not xce_scheduler_t*, so
* xce_core_push_events() (core.c) can call it without core.c depending on
* this header. Call sites in this file (sched_job_picker(), sched_allocator(),
* sched_init()) now pass &sched->core. See core.h for the full contract. */
extern int sched_update(xce_scheduler_t*);
extern void sched_go(xce_scheduler_t*);
extern void sched_begin_session(xce_scheduler_t*);