Evgeny
61fee27478
congestion: burst-based BW measurement + adaptive inflight (slow start/cong avoidance/loss response)
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New features:
- get_time_us() in lib/u_async.c/h for µs-precision timing
- Burst measurement (ETCP_SECTION_MEAS_TS 0x07, MEAS_RESP 0x08, FILLER 0x09)
- 12 MTU packets sent at line rate, receiver measures inter-packet gaps
- Burst triggered when link saturated + min 500ms interval
- Result: measured BW -> bandwidth for shaper, burst_target_bdp for window cap
- 3-phase adaptive inflight in link_stats_timer_cb:
- Slow start: windows doubles each RTT, exits on loss/RTT spike/threshold
- Congestion avoidance: additive increase, proportional RTT shrink, multiplicative loss shrink
- Burst target cap: inflight_lim <= burst_target_bdp * 1.1
- Dynamic optimal_inflight = sum(link->inflight_lim_bytes), recalculated on change
- Adaptive win_timebase = rtt/2 (was hardcoded 10ms)
Fixes:
- dummynet.c: shaper formula fixed (80000 -> 80)
- dummynet.c: queue_data_put call fixed (3 args -> 2)
- etcp.c: SIZE ERROR format string (missing log_name argument)
- etcp_request_pkt: FILLER leaves room for PAYLOAD overhead
Tests:
- test_etcp_congestion.c: single-threaded, 5-phase BW/delay/loss test
- sender + receiver + dummynet in one uasync
- CSV metrics output every 100ms
- All 29 existing tests pass
2026-04-26 00:17:32 +03:00
jeka
5816fbea70
1
2026-03-08 17:19:38 +03:00
jeka
15c7968c8c
mem
2026-03-06 01:36:57 +03:00
jeka
de053a00c0
cleanup tests (winsock)
2026-03-04 17:27:33 +03:00
jeka
fcdd07ba94
фиксы тестов (winsock)
2026-03-04 15:30:32 +03:00
Evgeny
20a3eaf73c
Fix remaining test files: replace POSIX headers with platform_compat.h
2026-02-15 13:25:05 +03:00
Evgeny
3ddfb79338
Backup before replacing all printf with DEBUG_ macros in tests
2026-01-26 17:52:50 +03:00
Evgeny
1bafe6a681
Backup before fixing etcp_connections list addition
2026-01-26 17:40:51 +03:00
Evgeny
d0268563a1
Fix uasync socket counting bug causing test failures
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Root cause: Use-after-free bug due to stale pointers after realloc()
- Socket array growth via realloc() moved memory to new location
- Test stored old pointers that became invalid after memory move
- Caused memory corruption and socket counting failures
Solution: Modified test to avoid storing stale pointers
- Store file descriptors instead of raw pointers
- Use lookup approach to get current pointers during removal
- Eliminates use-after-free issue entirely
Results: All uasync tests now pass without memory leaks
- test_u_async_performance: 25/25 sockets (was failing before)
- No more socket counting mismatches or corruption
- Clean memory stats and proper cleanup
2026-01-25 14:18:30 +03:00
Evgeny
d74f76a5a0
Fix: Resolved double free in timeout_heap_pop() and test_etcp_simple_traffic bind conflict
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- Fixed incorrect init_connections() call in test_etcp_simple_traffic.c (was calling server_instance instead of client_instance)
- Fixed double free in timeout_heap_pop() when handling deleted elements
- Enhanced NULL pointer safety in uasync_print_resources() by removing complex heap manipulation
- Added debug logging to timeout_heap_pop() for better error tracking
Test results: test_etcp_simple_traffic now passes without double free errors
2026-01-25 10:47:02 +03:00
Evgeny
3f0a23aa93
Fix build: rename u_async to lib, add missing constants, out-of-tree build support
2026-01-18 16:18:28 +03:00
Evgeny
8d9340c949
Refactor: Move mainloop from utun_instance to main
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Major architectural changes:
- utun_instance_run() now does single iteration instead of mainloop
- Added tun_read_callback() to handle TUN device packets
- Added utun_instance_register_sockets() for uasync integration
- Mainloop moved to main() with proper signal handling
- Removed parse config file functions from debug_config
- all fprintf replaced with DEBUG_* macros
Files changed:
- src/utun.c: Added mainloop, signal handlers, proper init order
- src/utun_instance.c: Added callback, socket registration, single-run
- src/utun_instance.h: Added declarations, tun_socket_id field
- u_async/debug_config.c: Removed file parsing and auto-reload
- u_async/debug_config.h: Removed file functions, added categories
- changelog.txt: Added all changes
Breaking changes:
- debug_parse_config_file() removed (use debug_parse_config() only)
- etcp crypto integration needs fixing (separate issue)
AGENTS.md principles followed:
- No backward compatibility preserved
- Removed 103+ lines of legacy code
- Added statistics tracking
- Clean architecture: create -> init -> register -> run -> destroy
2026-01-18 14:28:57 +03:00
Evgeny