* Add unit test for psync_task_free refcount fix (#377)
Adds tests/unit-tests/test_ptask_free.c to verify all code paths of the
psync_task_free fix from #377: single-owner free, last-ref destroy,
non-last-ref decrement, READY task signaling, and lock-before-refcnt
ordering. All 5 tests pass. Also adds compiled binary to .gitignore.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Refactor test_ptask_free to link production code via --wrap
Extract psync_task_free + psync_task_destroy (and their static helpers
psync_task_dec_refcnt, psync_task_entry) from ptask.c into a new
separately-compilable unit pclsync/ptask_free.c. Add
pclsync/ptask_free_internal.h to expose the internal struct layout
(struct psync_task_manager_t_ / struct psync_task_t_) for test use
without pulling in ptask.c's heavyweight transitive dependencies.
Rewrite tests/unit-tests/test_ptask_free.c to:
- Include ptask_free_internal.h instead of duplicating structs inline
- Call the real psync_task_free() rather than a local replica
- Intercept pthread_mutex_lock/unlock and pmem_free via --wrap linker
flags to observe lock discipline and detect destroy invocations
Update the Makefile test_ptask_free target to link pclsync/ptask_free.c
and pass the required --wrap flags. Production build unchanged: ptask_free.o
is picked up automatically by the existing wildcard COBJ rule.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Implement Tasks #3, #4, #5: tree tests, pfstasks tree layer, DB harness
Task #3 — Unit tests for ptree and pintervaltree
tests/unit-tests/test_ptree.c: 8 tests covering single-node insert,
in-order traversal after arbitrary and reverse inserts, BST lookup,
leaf/root/all-node deletion, and ptree_for_each visitation.
tests/unit-tests/test_pintervaltree.c: 18 tests covering single add,
non-overlapping, overlapping/adjacent/contained/spanning merges,
chain merge, remove middle split, remove exact/left/right/spanning,
cut_end, first_interval_containing_or_after, and free(NULL).
Task #4 — Extract pfstasks tree layer
pclsync/pfstasks_tree.h + pclsync/pfstasks_tree.c: pure tree layer
(zero psql calls) extracted from pfstasks.c — pfs_task_search_tree,
pfs_task_walk_tree (static helpers), pfs_task_insert_into_tree,
pfs_task_find_mkdir/rmdir/creat/unlink,
pfs_task_find_mkdir_by_folderid, pfs_task_find_creat_by_fileid.
pclsync/pfstasks.c: #includes pfstasks_tree.h; all moved functions
removed; all callers unchanged.
tests/unit-tests/test_pfstasks_tree.c: 13 tests using direct tree
construction (no DB) to verify find-by-name, taskid discrimination,
find-by-numeric-id, and empty-folder edge cases.
Task #5 — psql in-memory harness + pfstasks DB tests
tests/helpers/psql_test_helpers.h + .c: lightweight harness that
opens :memory: via sqlite3_open, enables PRAGMA foreign_keys=ON, and
applies the full PSYNC_DATABASE_STRUCTURE schema. Exposes
psql_test_db(), psql_test_exec(), psql_test_insert_fstask(),
psql_test_count_fstask/fstaskdepend(). No dependency on psql.c.
tests/unit-tests/test_pfstasks_db.c: 10 tests verifying schema
creation, fstask insertion/query, fstaskdepend insertion, CASCADE
DELETE propagation, FK enforcement, rmdir-blocking SQL pattern,
creat-after-unlink sequencing, and open/close idempotence.
All 11 new tests pass; production build clean.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Fix P1 review findings in pfstasks_db test and helpers
1. Check psql_test_exec() return values in test_cascade_delete() and
test_creat_after_unlink() consistently with test_fstaskdepend_insert().
2. Remove dead dep_cnt variable and (void)dep_cnt suppressor from
test_creat_after_unlink().
3. Change SQLITE_STATIC → SQLITE_TRANSIENT for text1 binding in
psql_test_insert_fstask() to avoid dangling-pointer footgun on
future reuse.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Fix ASAN/LSAN failures: ppath_home stack-use-after-scope + intentional leak
pclsync/ppath.c: Move buff[4096] to function scope in ppath_home() so
the pointer stored in dir via result->pw_dir remains live through the
putil_strdup(dir) call. Previously buff went out of scope at the if-block
close, causing a stack-use-after-scope ASAN report on every call that fell
through the getpwuid_r path.
tests/unit-tests/test_ptools_errptr.c: run_unfixed() intentionally leaks
errPtr to demonstrate the pre-fix bug. Wrap the allocation with
LSAN_DISABLE() / LSAN_ENABLE() so LSAN does not abort the process at exit
before stdio flushes, which was causing a non-zero exit code. The guard
uses nested #ifdef/__has_feature to remain compatible with both GCC
(__SANITIZE_ADDRESS__) and Clang (__has_feature(address_sanitizer))
without triggering "missing binary operator" errors on GCC.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Implement Tasks #11 and #12: plocks stress test + pfsupload send tests
Task #11 — plocks.c stress test (test_plocks.c)
7 tests: basic rdlock/wrlock round-trip, recursive TLS counting (same
thread acquires rdlock N times; unlock only releases on final decrement),
upgrade under contention (N readers + towrlock; barrier-synchronized),
writer starvation prevention (sustained reader load; writer acquires
within 500ms), N-reader + M-writer counter-integrity stress test (ASAN),
and try-variant contention (trywrlock fails when another thread holds
rdlock). TSAN note documented: custom lock internals require ASAN-only
when ThreadSanitizer annotations are absent.
Task #12 — pfsupload send-function tests (pfsupload_send.c/h + test_pfsupload.c)
Extract psync_send_task_mkdir and psync_send_task_rmdir from pfsupload.c
into pclsync/pfsupload_send.c as non-static pfsupload_send_mkdir/rmdir.
Expose fsupload_task_t struct via pclsync/pfsupload_send.h. Add
__attribute__((weak)) get_urls() as an injectable URL seam for large-
upload paths. pfsupload.c updated to include pfsupload_send.h and use
the renamed functions in its dispatch table; pfsupload_send.o is
automatically picked up by the production wildcard build.
5 tests: mkdir (non-encrypted) command + folderid param, mkdir
(encrypted) key param present, rmdir command + sfolderid, API error path
(papi_send failure → -1), get_urls() weak override. Uses
--wrap=papi_send to intercept API calls and socketpair() to provide a
valid psock_t without real network I/O.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* P2 cleanup: comments, make_fake_api stack alloc, find_str_param fix
1. test_plocks.c: add comment to test_upgrade_under_contention clarifying
it verifies towrlock completion and holding_wrlock; notes that concurrent
exclusivity is covered by test_stress().
2. test_pfsupload.c / make_fake_api: replace static-local psock_t with
caller-supplied stack allocation (out parameter) to eliminate the
multiple-calls-per-test footgun.
3. test_pfsupload.c / find_str_param: replace ternary
`paramnamelen == strlen ? paramname : ""` with explicit length check +
strncmp, matching the cleaner pattern used in find_num_param.
4. Makefile: add comment next to -Wl,--wrap=papi_send noting it redirects
papi_send to __wrap_papi_send and is GNU ld only (not macOS Apple ld).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Implement Tasks #19 and #20: ppagecache + pfs helper extraction
Task #19 — ppagecache.c decomposition (ppagecache_helpers.c/h)
ppagecache_compute_page_priority(usecnt): pure function returning the
LRU eviction tier (0–4) that matches the five pagecache_entry_cmp_*
sort comparators in ppagecache.c (thresholds 2/4/8/16).
ppagecache_verify_crc(data, size, stored_crc): wraps pcrc32c_compute
and compares; returns 0 on match, -1 on mismatch.
ppagecache_get_download_urls(fileid, hash, nout): __attribute__((weak))
URL-injection seam; default returns NULL (falls through to real API).
ppagecache.c updated to include ppagecache_helpers.h.
test_ppagecache.c: 10 tests covering tier boundary conditions (0/1/2/3/4
including UINT32_MAX), CRC match, single-bit flip, wrong stored CRC,
zero-length buffer, and weak URL override.
Task #20 — pfs.c helper extraction (pfs_helpers.c/h)
pfs_row_to_folder_stat(row, stbuf): converts psql folder row → struct
stat; uses pfs_task_get_folder_tasks_rdlocked for in-memory mtime.
pfs_row_to_file_stat(row, stbuf, flags): converts psql file row → stat;
encrypted path calls pfs_crpt_plain_size.
pfs_mkdir_to_folder_stat(mk, stbuf): converts in-memory mkdir task →
stat (no SQL).
pfs_apply_task_overlay(stbuf, folder, name, flags): applies pending
mkdir/rmdir/unlink/creat-new overlays from the in-memory task queue;
returns 1/2/-1/0.
pfs_stat_uid/gid: exported globals; pfs.c syncs them from myuid/mygid.
pfs.c updated to #include pfs_helpers.h and sync the uid/gid globals.
pfsfolder.c: pfs_fldr_resolve_path decorated __attribute__((weak)) so
tests can inject fake path resolution without a FUSE mount or psql.
test_pfs_helpers.c: 7 tests covering folder/file stat field correctness,
overlay NULL/mkdir/rmdir/no-match cases, and weak path override; uses
--wrap for pfs_task_get_folder_tasks_rdlocked, pfs_crpt_plain_size, and
ptimer_time to stay SQL/crypto/timer-free.
Production build clean; make check exits 0.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Levi Neely <lkn@darkstar.example.net>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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