d0af315ff6
fix uasync set_timeout(0) ordering, dummynet shaper initial delay, add tests
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- uasync_set_timeout(0): use FIFO immediate_queue instead of timeout_heap
to guarantee execution AFTER all currently-expired heap timers
- uasync_cancel_timeout: search immediate_queue for timeout=0 timers
- dummynet: start initial shaper with bandwidth-based delay instead of 0
(prevents queue from never filling up when packets arrive sequentially)
- test_dummynet: rename get_time_us -> now_us (conflict with u_async.h)
- test_u_async_comprehensive: fix immediate_timeouts, add timeout_ordering test
5 months ago
c24a6367cc
add IPv6 default route interface auto-detection for permanent/temporary IPv6 without netif
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- get_default_route_netif_index(): UDP connect trick + getifaddrs to find default route iface
- etcp_socket_add(): auto-detect netif_index when not specified in config
- queue_new() API: explicit index_offset/index_size params instead of implicit from hash_size
- radix: cleanup types (uint8_t*), replace bzero/bcmp with memset/memcmp, remove kernel ifdefs
- route6_lib: new IPv6 routing library + get_node_v6_routes()
5 months ago
d0d4199273
etcp: unified send hook via etcp_udp_send, remove loss_rate, add dummynet_filter inline mode, rewrite BGP test
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- Add etcp_udp_send_fn_t hook typedef, send_hook/send_hook_ctx fields to ETCP_LINK
- Implement etcp_udp_send() wrapper — all UDP sends go through one point
- Remove loss_rate from ETCP_SOCKET, CFG_SERVER, config parser, send path
- Add dummynet_filter: inline send-hook with loss/delay, no proxy socket needed
- Rewrite test_bgp_route_exchange: 3-node chain A(2 links)↔B↔C, 7 phases
with dummynet_filter-based link failure/recovery simulation
- Clean up tests: remove skeleton test_routing_mesh, 6 debug/stale test files
- Refactor test_etcp_simple_traffic and test_pkt_normalizer_etcp (remove debug spam)
- Fix test_etcp_two_instances: remove private field access, fix false PASS on timeout
5 months ago
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
6 months ago
d74ab1c1c6
Add name parameter to uasync_set_timeout for timer identification in dumps
6 months ago
1811764f6d
+queue names
7 months ago
15c7968c8c
mem
7 months ago
9d0223d3fa
refactor
7 months ago
3749c5037c
fix build for linux
8 months ago
Evgeny
jeka