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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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18
src/scheduler/testsuite/test_picker_wiring.c
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@ -297,7 +297,7 @@ static void test_unset_job_pick_plugin_resolves_to_builtin_fcfs_by_default(void)
sched_set_default_job_pick_plugin(&sched);
TEST_ASSERT_EQUAL_STRING("builtin_fcfs", sched.core.job_pick_plugin);
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(0, rc);
TEST_ASSERT_NOT_NULL(resolved);
@ -311,7 +311,7 @@ static void test_unset_job_pick_plugin_resolves_to_builtin_fcfs_by_default(void)
/* tasks.md Observable, half 2: "starting it with an unregistered picker
* name fails startup with a clear error instead of silently falling
* back." -ENOENT specifically (distinct from -EINVAL below) --
* sched_resolve_job_picker's documented contract (scheduler.h). */
* sched_resolve_job_picker's documented contract (core.h). */
static void
test_unregistered_configured_name_fails_with_enoent_not_silent_fallback(void)
{
@ -324,7 +324,7 @@ test_unregistered_configured_name_fails_with_enoent_not_silent_fallback(void)
sched.core.job_pick_plugin = "totally_unregistered_picker_name";
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(-ENOENT, rc);
/* Not a silent fallback to builtin_fcfs (still registered) or to
@ -358,7 +358,7 @@ static void test_registered_but_not_a_picker_fails_with_einval_not_enoent(void)
sched.core.job_pick_plugin = "not_a_picker";
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(-EINVAL, rc);
TEST_ASSERT_NULL(resolved);
@ -377,7 +377,7 @@ test_unset_job_pick_plugin_without_defaulting_fails_with_einval(void)
fixture_init(&sched);
TEST_ASSERT_NULL(sched.core.job_pick_plugin);
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(-EINVAL, rc);
TEST_ASSERT_NULL(resolved);
@ -411,7 +411,7 @@ test_resolved_legacy_plugin_has_job_elect_fn_set_selecting_legacy_branch(void)
sched.core.job_pick_plugin = "test_legacy_picker_for_wiring";
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(0, rc);
TEST_ASSERT_NOT_NULL(resolved);
@ -437,7 +437,7 @@ test_resolved_builtin_fcfs_has_job_elect_fn_null_selecting_native_branch(void)
sched.core.job_pick_plugin = "builtin_fcfs"; /* explicit, not defaulted */
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(0, rc);
TEST_ASSERT_NOT_NULL(resolved);
@ -467,12 +467,12 @@ test_legacy_and_native_pickers_coexist_and_resolve_independently(void)
TEST_ASSERT_GREATER_OR_EQUAL(0, register_builtin_fcfs(&sched));
sched.core.job_pick_plugin = "xce_sched_fcfs_stub";
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(0, rc);
TEST_ASSERT_NOT_NULL(resolved->job_elect_fn);
sched.core.job_pick_plugin = "builtin_fcfs";
rc = sched_resolve_job_picker(&sched, &resolved);
rc = sched_resolve_job_picker(&sched.core, &resolved);
TEST_ASSERT_EQUAL_INT(0, rc);
TEST_ASSERT_NULL(resolved->job_elect_fn);
}