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fix(scheduler): apply a mid-replay CONFIG_PUSH to the sim limit plugin (bug-1964)

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Cause: live applies every pushed config through sched_init_config(),
whose plugin_config_update() runs each plugin's config_hook (the limit
plugin builds its limits there). The simulator seeded the limit plugin
only at bootstrap (sim_bootstrap_limit_plugin()); the core's CONFIG_PUSH
event loaded groups, resources and queues but never told the plugins,
so a limit added during a replay never existed in sim.

Fix: one shared fan-out, plugin_config_update_core(core, config), which
live's plugin_config_update() now delegates to. The core's CONFIG_PUSH
calls a driver-registered xce_core_config_cb_t after loading groups (live
order), keeping the core free of plugin.c; the simulator registers the
fan-out in sim_bootstrap_limit_plugin(). limit_update_config() reads the
honestly-typed plugin->core instead of casting plugin->sched, so the hook
is safe on the sim core; the hand-built plugin fixtures in
test_limit_plugin.c/test_repl_limit_table.c now set plugin->core as
plugin_register() does. test_sim_limit_config_push_parity.c covers it.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-10-10 10:28:35 +00:00
parent 2cd02cdc8c
commit 3224e90683
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
13 changed files with 452 additions and 7 deletions
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src/scheduler/include/plugin.h
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@ -122,6 +122,7 @@ typedef struct {
extern int plugin_register(void*, void*);
extern void plugin_unregister(void*);
extern int plugin_config_update(void*, xce_conf4sched_t*);
extern int plugin_config_update_core(xce_sched_core_t*, xce_conf4sched_t*);
extern int plugin_queue_update(void*, xce_sched_queue_t*);
extern int plugin_job_update(void*, xce_sched_job_t*);
extern int plugin_worker_update(void*, xce_sched_worker_t*);