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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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19
src/scheduler/testsuite/test_sim_event_loop.c
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@ -60,7 +60,13 @@
* extern functions defined there; this white-box TU must include it too or
* those calls are undefined references at link time, even though neither
* test in this file exercises --sim-verify itself -- that is
* test_sim_verify.c's own job) PLUS
* test_sim_verify.c's own job) PLUS ../src/recording_session.c/
* ../src/sim_record.c (task 11.5's sibling files -- same reasoning:
* sched_sim_driver_run() now unconditionally references
* sched_record_session_ctx_new()/_finalize()/sim_record_write_header_and_
* snapshot()/sim_record_write_event() as extern functions, undefined
* references at link time otherwise, even though this file never sets
* --sim-output either) PLUS
* ../src/snapshot.c/snapshot_wire.c/snapshot_load.c (task 8.1, needed by
* both the fixture-building and sim.c's own snapshot load).
*/
@ -89,8 +95,10 @@
#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"
@ -444,13 +452,20 @@ test_process_replay_event_advances_virtual_clock_to_exact_event_ts_in_file_order
struct capn c;
capn_ptr root;
xce_core_event_t ev;
int record_rc = 0;
int translated;
TEST_ASSERT_EQUAL_INT(0, capn_init_fp(&c, f, 0));
TEST_ASSERT_TRUE(msg_root_has_shape(&c, &root, ReplayEvent_word_count,
ReplayEvent_pointer_count));
translated = sim_process_replay_event_message(&sim, &c, root, &ev);
/* record_rc: task 11.5's new --sim-output pass-through out-param
* (sim_loop.c) -- always 0 here, sim.record_file is NULL for this
* whole fixture (no --sim-output involved in this task's own
* Observable). */
translated
= sim_process_replay_event_message(&sim, &c, root, &ev, &record_rc);
TEST_ASSERT_EQUAL_INT(0, record_rc);
TEST_ASSERT_EQUAL_INT(1, translated);
TEST_ASSERT_EQUAL_INT(XCE_CORE_EVENT_JOB_STATE_CHANGE, ev.type);