- block_availability: status column (0=processing, 1=completed)
- md_ba_complete_block(): DELETE old + check exists + INSERT new id
- BLOCK_PROCESSING subcmd (0x10) — INSERT with new id, no REPLACE/IGNORE
- BLOCK_RELAY_FULL subcmd (0x11) — redirect when source/relay at capacity
- relay_block_ctx: downstream forwarding from chunk file
- md_file_load: per-file source download limit (max_downloads_per_file)
- RELAY_FULL from source node when at capacity
- relay_full handler: retry existing peers, not just new ones
- sync.md: full documentation
5 new tests in test_media_delivery_download:
- conn_cb starts only first block (backpressure)
- conn_cb with multiple peers
- BLOCK_DONE triggers next block relay from same peer
- assembly after all blocks validated
- peer with more blocks than dl (OOB fix verification)
md_dl_conn_cb made non-static for test visibility
md_dl_send added NULL guard for test instances without routing
media_download.h: added conn_cb extern declaration
- stcp_server_create: support AF_INET and AF_INET6 V6ONLY=1 (no dual-stack)
- Add listen_family to stcp_link_config
- init_sockets: return error (not partial) on any bind failure
- add chat_core_sync_my_addresses() call at chatgui startup
- collect_my_addrs: add proto byte (1=UDP, 2=TCP) to binary format
- chat_sync.c JOIN/WELCOME/PEER_UPSERT: read proto byte, write protocol column
- member_sync.c: read proto byte, dynamic protocol bind
- topo_node.c: debug logs for nodeinfo changed detection
- node_config.cpp: type=public for all servers
- db_record_insert_cascade: unified insert with on_insert + PUSH cascade
- SYNC_DONE moved from INIT_RESP to DATA handler (master sends after slave response)
- db_sync_add/remove_done_cbk: global sync-completion subscription (etcp pattern)
- REQUEST_SYNC handler: sync_state != 1 instead of == 0
- SYNC_DONE mc==pc hash mismatch: accept as converged
- Removed unconditional sync_state=2 from DATA handler
- test: done_cbk for sync phases, count-only for PUSH phases, removed dead B<>C reinitiate
- Fix NULL block_data deref in stream_send_chunk_cb
- Test B1: create file in <db_dir>/media/, commit to media_files
- Store media_base in ui_state for streaming handler path resolution
- 8/9 tests pass (streaming works but timing issue with SUPER_REPL flood)
- md_handle_block_req: real chunk streaming via etcp_router_on_send_ready
- stream_ctx state machine: backpressure waiter → send chunk → repeat
- content_hash + block_sig on stream completion
- Fallback to author when supernode has no block info
- media_download: author_node_id for peer fallback
- test_media_delivery_full: 8/9 pass (SUPER_HELLO, HAVE_BLOCK, replication, admission, file create)
- Known issue: streaming test hung (BGP route for n1→n2 not established in time)
- audio_compressor.h/c moved to lib/ (alongside opus_codec, mem, debug_config)
- lib/Makefile.am: added to libuasync_a_SOURCES
- utun_sources.cmake: removed from _cfg_src (GLOB from lib/ picks it up)
- tests/Makefile.am: test_audio_compressor added to check_PROGRAMS
- test includes simplified (debug_config.h, mem.h — lib/ in include path)
- Создан src/chat/ с chat_event.h/c — система нотификаций
- Перенесены chat_core, chat_msg, chat_channel, chat_profile, chat_status
- Перенесены chat_sync, member_sync, merkle_sync, db_sync
- gui_bridge_post() заменён на chat_event_post() с возможностью регистрации обработчика
- chat_event_set_handler() — chatgui регистрирует мост в gui_bridge
- Без обработчика: события логируются через DEBUG_DEBUG + log_dump
- chat интегрирован в utun_instance.c (при db_path в конфиге)
- Обновлены include-пути, Makefile.am, CMakeLists.txt
- Из chatgui удалены старые transport/ файлы, обновлён utun_node.cpp
- si_send_data_batch: неправильный SQL SELECT с несуществующей колонкой author
вместо node_id → ломал всю передачу данных в REFINE/SEND_DATA
- Добавлена проверка si_prep и возврат int с кодом ошибки
- Все вызовы si_send_data_batch проверяют возврат, при ошибке сброс sync_state
- db_handle_push: добавлен db_cascade_from после вставки (раньше chain_hash
не пересчитывался после PUSH)
- db_handle_refine: DEBUG_WARN при scnt==0 (fm за пределами диапазона)
- Добавлена публичная db_sync_chain_verify() для верификации цепочек
- test_db_sync: фаза 4 (divergence через разныe hashes + REFINE/SEND_DATA),
фаза 5 (PUSH без хвоста + cascade verification)
- Убран мёртвый код db_sync_on_new_conn
- chatgui: адаптивная раскраска пузырей исходящих сообщений
- conn_mgr_init(TOPO_GROUP* group) — работает внутри заданной группы
- conn_mgr_connect_node: загрузка узла из SQLite если нет в BGP-таблице
- topo_node_sqlite_node_load(): загрузка TOPO_NODE (ref=0) из БД
- cm_start_phase_direct: db_loaded-ветка — перебор всех адресов без NAT-фильтра
- cm_cleanup_db_node: удаление TOPO_NODEQ из группы при неудаче, только если нет путей
- cm_start_phase_indirect: исправлено зависание при best_candidates==0 (cm_deliver_result)
- conn_mgr_set_direct_timeout_ms(): конфигурируемый таймаут фазы DIRECT
- conn_mgr_destroy до etcp_router_destroy (исправлен порядок)
- test_conn_mgr: +2 сценария (DB-успех, DB-недоступен), проверка topo_group
- etcp_router: SVC_ROUTE_HDR (+8B), ETCP_ROUTER_CONN/TRANSIT_QUEUE хеши расширены под group_id
- Все caller'ы (proxy, routing, conn_mgr, nat, chatgui, tests) обновлены
- topo_group: глобальный реестр TOPO_NODE по node_id, ref_count=0 при создании
- BGP-обмен активируется для всех групп (а не только дефолтной)
- Протокол: group_id добавлен в WITHDRAW/TABLE_REQ/TABLE_COMPLETE/ERR_GROUP_MISMATCH
- Per-connection коллбэки заменены на instance-level conn_status
- msg_transport полностью удалён из проекта
57/57 тестов
- Remove is_dm column from channels table (dm detection by member count)
- Rename member name column to userinfo — extensible json_flat format
- Add json_flat.c/h library for compact JSON serialization
- Fix join_sig message format: use ch_x25519+ch_ed25519 instead of channel_id string
- Remove name from join_msg body (now in userinfo via json_flat)
- Update chat_core, chat_sync, member_sync, db_manager to new format
- Add topo_strategy.txt — архитектурные заметки по топологии
- mainwindow.cpp: swap setupMessaging() before setupNode() so g_receiver is created first
- gui_bridge_impl.cpp: add DEBUG_WARN when gui_bridge_post drops event due to NULL g_receiver
- Add sync_start_tb to SI_PEER, set in db_sync_initiate_sync
- peer_check_cb: after 15s timeout reset sync_state=0 with WARN
- db_handle_error: accept si, reset sync_state=0, DEBUG_ERROR with details
- DB_SYNC_SYNC_TIMEOUT=15 added to db_sync.h
Root cause: db_handle_init_resp marked sync_state=2 when my_dh==peer_dh
without checking that all my records fit in the confirmed prefix.
If mc > tp+1 (I have records beyond the common prefix), the tail was
never sent — lost records.
Fix:
- Remove special-case 'sc==0 && my_dh==peer_dh' (redundant, same bug)
- In general dh_match: if mc > tp+1, send remaining records [tp+1,mc-1]
using the same inline loop pattern as 'peer empty' branch
Test: 3 phases covering all dh_match paths:
- Phase 1: B empty+late instance → dh_match at tp=0 (sc=0) → tail-send 49
- Phase 2: A=80 B=50 → dh_match at tp=49 (sc>0, sparse) → tail-send 30
- Phase 3: fresh instances → peer empty → send all 30
Root cause: accept queue overflow (backlog=32) caused kernel SYN drops.
Children waited ~1s for SYN retransmit timeout (5 gaps × 1s = 5s out of 7.2s).
With backlog=1024 the timeout drops from ~7.2s to ~0.065s (110× faster).
evgeny
Evgeny