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fadbbf463c682bbfd4ae79a49bf16364ed8e6be1
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Author SHA1 Message Date
Joseph Doherty
fadbbf463c docs: add detailed implementation plan for config parsing and hot reload 
8 tasks with TDD steps, complete test code, exact file paths,
and dependency chain from lexer through to verification.
 2026-02-23 04:12:11 -05:00
Joseph Doherty
65fac32a14 docs: add config parsing and hot reload design document 
Captures the design for resolving the two remaining high-priority gaps
in differences.md: config file parsing and SIGHUP hot reload.
 2026-02-23 04:06:16 -05:00
Joseph Doherty
cc5ce63cb9 Merge branch 'feature/sections-7-10-gaps' into main 2026-02-23 03:34:00 -05:00
Joseph Doherty
56de543713 docs: update differences.md sections 7-10 to reflect implemented features 2026-02-23 01:08:34 -05:00
Joseph Doherty
42c7c9cb7a docs: update differences.md sections 3-6 and 9 to reflect implemented features 
Update comparison tables for protocol parsing (tracing, MIME headers, INFO caching,
Span-based MSG), subscriptions (generation ID, Stats, SubjectsCollide, token utils,
account limits), auth (deny enforcement, LRU cache, response permissions, auth expiry),
configuration (CLI flags, MaxSubs, Tags, file logging), and logging (trace/debug modes,
file output). Mark 11 summary items as resolved.
 2026-02-23 01:07:14 -05:00
Joseph Doherty
8878301c7f test: add file logging and rotation tests 2026-02-23 01:05:10 -05:00
Joseph Doherty
e31ba04fdb feat: add closed connection tracking, state filtering, ByStop/ByReason sorting 2026-02-23 01:01:56 -05:00
Joseph Doherty
dab8004d6b feat: cache INFO serialization — build once at startup instead of per-connection 
Avoids re-serializing the same ServerInfo JSON on every new connection. The
cache is rebuilt when the ephemeral port is resolved. Connections that carry a
per-connection nonce (NKey auth) continue to serialize individually so the nonce
is included correctly.
 2026-02-23 01:01:38 -05:00
Joseph Doherty
f0b5edd7c6 feat: add response permission tracking for dynamic reply subject authorization 2026-02-23 00:59:15 -05:00
Joseph Doherty
1806ae607e test: add TLS rate limiter unit tests 2026-02-23 00:57:14 -05:00
Joseph Doherty
1f13269447 feat: implement TLS cert-to-user mapping via X500 DN matching 2026-02-23 00:55:29 -05:00
Joseph Doherty
7a897c1087 feat: add MaxSubs enforcement, delivery-time deny filtering, auto-unsub cleanup 2026-02-23 00:53:15 -05:00
Joseph Doherty
e9b6c7fdd3 feat: add protocol tracing (<<- op arg) at LogLevel.Trace 2026-02-23 00:52:00 -05:00
Joseph Doherty
1269ae8275 feat: implement /subz endpoint with account filter, test subject, and pagination 2026-02-23 00:50:26 -05:00
Joseph Doherty
0347e8a28c fix: increment _removes counter in RemoveBatch for accurate stats 2026-02-23 00:48:53 -05:00
Joseph Doherty
6afe11ad4d feat: add per-account connection/subscription limits with AccountConfig 2026-02-23 00:46:16 -05:00
Joseph Doherty
345e7ca15c feat: implement log reopening on SIGUSR1 signal 2026-02-23 00:46:09 -05:00
Joseph Doherty
cc0fe04f3c feat: add generation-based cache, Stats, HasInterest, NumInterest, RemoveBatch, All, ReverseMatch to SubList 2026-02-23 00:45:28 -05:00
Joseph Doherty
cf75077bc4 feat: add CLI flags for debug/trace modes, file logging, syslog, color, timestamps 2026-02-23 00:43:27 -05:00
Joseph Doherty
4ad821394b feat: add -D/-V/-DV debug/trace CLI flags and file logging support 2026-02-23 00:41:49 -05:00
Joseph Doherty
b7c0e321d9 fix: move stale connection stat increments to detection site in RunPingTimerAsync 2026-02-23 00:41:12 -05:00
Joseph Doherty
0ec5583422 fix: address code quality review findings for batch 1 
- SubjectsCollide: split tokens once upfront instead of O(n²) TokenAt calls
- NatsHeaderParser: manual digit accumulation avoids string allocation and overflow
- NatsHeaders: use IReadOnlyDictionary for Headers, immutable Invalid sentinel
- PermissionLruCache: add missing Count property
 2026-02-23 00:40:14 -05:00
Joseph Doherty
cd4ae3cce6 feat: add stale connection stats tracking and varz exposure 2026-02-23 00:38:43 -05:00
Joseph Doherty
eb25d52ed5 feat: add RTT tracking and first-PING delay to NatsClient 2026-02-23 00:34:30 -05:00
Joseph Doherty
dddced444e feat: add NumTokens, TokenAt, SubjectsCollide, UTF-8 validation to SubjectMatch 2026-02-23 00:33:43 -05:00
Joseph Doherty
e87d4c00d9 feat: add NatsHeaderParser for MIME header parsing 2026-02-23 00:33:24 -05:00
Joseph Doherty
7cf6bb866e feat: add PermissionLruCache (128-entry LRU) and wire into ClientPermissions 2026-02-23 00:33:15 -05:00
Joseph Doherty
17a0a217dd feat: add MaxSubs, MaxSubTokens, Debug, Trace, LogFile, LogSizeLimit, Tags to NatsOptions 2026-02-23 00:32:12 -05:00
Joseph Doherty
573cd06bb1 feat: add logging and timestamp options to NatsOptions 2026-02-23 00:29:45 -05:00
Joseph Doherty
a0f02d6641 chore: add Serilog.Sinks.File and SyslogMessages packages 2026-02-23 00:28:32 -05:00
Joseph Doherty
5b383ada4b docs: add implementation plan for sections 3-6 gaps 2026-02-23 00:28:31 -05:00
Joseph Doherty
060e1ee23d docs: add implementation plan for sections 7-10 gaps 2026-02-23 00:25:04 -05:00
Joseph Doherty
f4efbcf09e docs: add design for sections 7-10 gaps implementation 2026-02-23 00:17:35 -05:00
Joseph Doherty
f86ea57f43 docs: add design for sections 3-6 gaps implementation 2026-02-23 00:17:24 -05:00
Joseph Doherty
3941c85e76 Merge branch 'feature/core-lifecycle' into main 
Reconcile close reason tracking: feature branch's MarkClosed() and
ShouldSkipFlush/FlushAndCloseAsync now use main's ClientClosedReason
enum. ClosedState enum retained for forward compatibility.
 2026-02-23 00:09:30 -05:00
Joseph Doherty
2baf8a85bf docs: update differences.md section 2 to reflect implemented features 2026-02-22 23:59:19 -05:00
Joseph Doherty
f5c0c4f906 feat: wire pending bytes and close reason into connz monitoring 2026-02-22 23:57:39 -05:00
Joseph Doherty
5323c8bb30 docs: update differences.md section 1 to reflect core lifecycle implementation 2026-02-22 23:56:57 -05:00
Joseph Doherty
2fb14821e0 feat: add no-responders CONNECT validation and tests 
Reject connections that send no_responders:true without headers:true,
since the 503 HMSG response requires header support. Add three tests:
connection rejection, acceptance with headers, and 503 delivery flow.
 2026-02-22 23:56:49 -05:00
Joseph Doherty
04305447f9 feat: implement verbose mode (+OK after commands) 
When a client sends CONNECT {"verbose":true}, the server now responds
with +OK\r\n after successfully processing CONNECT, PING, SUB, UNSUB,
and PUB/HPUB commands, matching the Go NATS server behavior.
 2026-02-22 23:54:41 -05:00
Joseph Doherty
df39ebdc58 feat: add signal handling (SIGTERM, SIGUSR2, SIGHUP) and CLI stubs 2026-02-22 23:52:49 -05:00
Joseph Doherty
bce793fd42 perf: batch stat increments per read cycle in ProcessCommandsAsync 
Accumulate InMsgs/InBytes locally per ReadAsync cycle and flush once,
reducing from 4 Interlocked operations per published message to 2 per
read cycle. This matches the Go server's approach of batching stats.
 2026-02-22 23:52:09 -05:00
Joseph Doherty
e57605f090 feat: add PID file and ports file support 2026-02-22 23:50:22 -05:00
Joseph Doherty
c522ce99f5 feat: add delivery tracking and no-responders 503 support to ProcessMessage 
When a PUB with a reply-to subject has no matching subscribers and the
sender opted into no_responders, send a 503 HMSG back on the reply
subject so request-reply callers can fail fast instead of timing out.
 2026-02-22 23:49:39 -05:00
Joseph Doherty
34067f2b9b feat: add lame duck mode with staggered client shutdown 2026-02-22 23:48:06 -05:00
Joseph Doherty
b289041761 test: add write loop and slow consumer detection tests 
Verify channel-based write loop behavior: QueueOutbound writes data
to client socket, PendingBytes tracking, slow consumer detection
when MaxPending is exceeded, close reason propagation, and server
stats incrementation on slow consumer events.
 2026-02-22 23:47:31 -05:00
Joseph Doherty
45de110a84 feat: add flush-before-close for graceful client shutdown 2026-02-22 23:45:26 -05:00
Joseph Doherty
b68f898fa0 feat: add graceful shutdown, accept loop backoff, and task tracking 2026-02-22 23:43:25 -05:00
Joseph Doherty
31660a4187 feat: replace inline writes with channel-based write loop and batch flush 2026-02-22 23:41:44 -05:00
Joseph Doherty
600c6f9e5a feat: add system account ($SYS) and server NKey identity stubs 2026-02-22 23:39:22 -05:00