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feat(scheduler-core): implement what-if branching and simulation output recording (task 11.5)

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Add sim_record.c (scheduler_t-free .replay writer: ReplayHeader + loaded
SnapshotEntry once, then per-event pass-through and per-session
ReplaySession finalization) and wire --sim-alt-events event-source
selection into sim_loop.c's drain loop, coexisting with task 11.2's
stdout default and task 11.4's --sim-verify. Extract scheduler_t-free
halves out of recording_session.c's begin/end so sim-side code can reuse
the decision-encoding path without gaining an xce_scheduler_t* dependency,
preserving Req 5 AC 17 isolation. Per Req 5 AC 16/19.
This commit is contained in:
Rongsong Shen 2026-08-07 02:42:50 +00:00
parent a6083d803e
commit 564408e967
Signed by: rshen
SSH key fingerprint: SHA256:8Vf2pZ3h6rJa7EhGK+WaAQ9Mta/apZvteW6g9U/WKKk
14 changed files with 1750 additions and 91 deletions
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9
src/scheduler/testsuite/test_sim_verify.c
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@ -58,8 +58,11 @@
* test_pend_decision_round_trip() already prove works.
*
* White-box #include of the same TU set test_sim_event_loop.c uses (see
* that file's own header comment) PLUS ../src/sim_verify.c (the code under
* test).
* that file's own header comment, including task 11.5's
* recording_session.c/sim_record.c -- required at link time by
* sched_sim_driver_run()'s unconditional externs regardless of whether
* --sim-output is ever set in a given test) PLUS ../src/sim_verify.c (the
* code under test).
*/
#include <errno.h>
#include <limits.h>
@ -89,8 +92,10 @@
#include "../src/plugin.c"
#include "../src/plugins/builtin_fcfs.c"
#include "../src/recording.c"
#include "../src/recording_session.c"
#include "../src/sim.c"
#include "../src/sim_loop.c"
#include "../src/sim_record.c"
#include "../src/sim_verify.c"
#include "../src/snapshot.c"
#include "../src/snapshot_load.c"