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feat(scheduler-sim-discrete-clock): remove the simulator speed argument and shadow copy (task 3.1)

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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-09-29 05:19:34 +00:00
parent eb5f339541
commit aa2bb6d090
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
32 changed files with 72 additions and 129 deletions
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12
src/scheduler/testsuite/test_repl_step_verbosity.c
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@ -27,8 +27,8 @@
* this file exercises the same real sched_sim_driver_run() end-to-end,
* forked-child, real-stdout-capture technique. Discrete-simulation
* determinism note (research.md's own key finding, load-bearing for every
* test below): `child_run_repl_and_exit()` sets args.sim_speed = 0, which
* sim_set_virtual_clock() (sim.c) stores as core.speed_num == 0; with
* test below): simulation mode always runs the core clock frozen --
* sim_set_virtual_clock() (sim.c) stores core.speed_num == 0; with
* speed_num == 0, xce_core_now()'s (core_clock.c) `elapsed * num / den` term
* is always exactly zero, so xce_core_now() returns EXACTLY the raw
* nanosecond `ts` value most recently passed to sim_advance_virtual_clock()
@ -634,9 +634,10 @@ static char* read_whole_file(const char* path)
/* child_run_repl_and_exit / run_repl_fixture_and_capture - the same fork/
* freopen/waitpid/capture shape test_repl_event_echo.c's own pair
* establishes: run a scripted command sequence to completion against a real
* sched_sim_driver_run(), capturing real stdout. args.sim_speed = 0 below is
* this file's own load-bearing determinism note (see header comment) -- it
* is what makes xce_core_now() return EXACTLY each event's own `ts`. */
* sched_sim_driver_run(), capturing real stdout. The simulator's frozen
* clock is this file's own load-bearing determinism note (see header
* comment) -- it is what makes xce_core_now() return EXACTLY each event's
* own `ts`. */
static void child_run_repl_and_exit(const char* replay_path,
const char* script_path,
const char* capture_path)
@ -655,7 +656,6 @@ static void child_run_repl_and_exit(const char* replay_path,
memset(&args, 0, sizeof(args));
args.replay_path = replay_path;
args.sim_start_ts = SCHED_SIM_START_TS_LATEST;
args.sim_speed = 0;
args.interactive = true;
(void)sched_sim_driver_run(&sim, &args);