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feat(ha-term-safety): WAL term seam + recovery read-back + legacy-0 rule (task 1.3)

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persist_set_term sets the live election term so appends stamp hdr.term (fixes the
G1 term-0 stamping); replay_wal builds an in-memory per-LSN term index (freed in
persist_fini, no on-disk change); persist_entry_term reads it back (0=absent).
Legacy-0 -> WAL_LEGACY_TERM=1 at read-back only (raw 0 retained so present-legacy-0
is distinguishable from absent). 40-byte wal_entry_hdr_t preserved (value fix, R1.7).
5 new tests (test_term_safety_adapter.c); reviewer APPROVED. Feeds task 2.2.

All controller test groups report 0 failures; the meson full-suite timeout is the
bug-924 overlayfs /tmp fdatasync artifact, not this task.
This commit is contained in:
Rongsong Shen 2026-06-22 04:32:29 +00:00
parent a95d57f733
commit d540ebd183
6 changed files with 420 additions and 1 deletions
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2
src/controller/testsuite/controller_test.c
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@ -63,6 +63,7 @@ extern void test_commit_durability(void);
extern void test_ctrlstatus(void);
extern void test_ha_heartbeat_committed(void);
extern void test_ha_vote_floor_heartbeat(void);
extern void test_term_safety_adapter(void);
extern void test_waldump(void);
void setUp(void) { return; }
@ -196,6 +197,7 @@ int main(int argc, char* argv[])
TEST(test_ctrlstatus);
TEST(test_ha_heartbeat_committed);
TEST(test_ha_vote_floor_heartbeat);
TEST(test_term_safety_adapter);
TEST(test_waldump);
return UNITY_END();