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5d91ca0efc
Review-driven session/transport fixes (each reproduced live against sharkd 4.6.7 before fixing): - raise the RPC stream limit to 16 MB: a full 1000-row frames page measures ~190 KB against the 64 KB StreamReader default, which failed the request with a 500 and desynchronized the resident session; a line-over-limit ValueError is now treated as a transport failure - verify JSON-RPC reply ids: a timed-out request's late reply was served as the next request's answer; timeouts, dead pipes, malformed and stale replies now kill the session for good instead - make check-spawn atomic under one manager lock: concurrent requests for the same pcap double-spawned sharkd and leaked the loser (process plus /tmp scratch copy) forever - refcount sessions and evict idle only (LRU, cap raised 8 -> 16): a tag with more sources than the cap respawned every source on every request, and concurrent requests could get their session killed mid-RPC (spurious 502) - map FilterError to sharkd's filter rejection (-13002) only; other engine failures with a filter set are 502, not a client 400 - detail: accept an optional frame_number to disambiguate same-microsecond frames (ts is not unique within a pcap); drop the -8003 -> 404 mapping (the range is validated locally, engine errors are real faults); a failed hex read is a 404 instead of "hex": null - a pcap deleted mid-request is a 404, not a 500; the pcap-sized scratch copy runs off the event loop; server shutdown kills every resident session and drops its scratch directory - pin the packet-list layout through scratch-HOME Wireshark preferences: the column indexes are a contract the server owns (protocol-level column negotiation is rejected by sharkd 4.6.x) Range contract change (WebUI moved to an always-flat list): the merged frame list is returned in full, deliberately uncapped - truncated and per-second buckets are removed, frame_count always equals len(frames), and rendering cost is the client's concern (the window endpoint remains the incremental path).