opentracker/src/trackerlogic.c, branch v2.2.0An open and free bittorrent tracker
https://erdgeist.org/gitweb/opentracker/atom?h=v2.2.02026-11-08T19:15:33Ztrackerlogic_deinit resets its per-bucket counter so shutdown no longer corrupts g_torrent_count2026-11-08T19:15:33ZDirk Englingerdgeist@erdgeist.org2026-11-08T19:15:33Zurn:sha1:fb1e6bfb548ac6791bd8e7a01c8d2faeb94143cdSilence leak checker. On exit trackerlogic frees the global workstruct2026-11-08T19:06:49ZDirk Englingerdgeist@erdgeist.org2026-11-08T19:06:49Zurn:sha1:6bec0aef4f42885bcdef31c633ebc9e5264a4615Unify the peerlists for v4 and v62026-11-07T18:39:01ZDirk Englingerdgeist@erdgeist.org2026-11-07T18:39:01Zurn:sha1:589cb500fa5a6df13fa9634d0071922ec11fce17
This commit finishes what started with unifying v4 and v6 trackers, from then on, torrents
carried a peer list per family, with obvious redundancies. With the race to save memory,
these became burdening enough that now these peerlist pointers have been moved into a
single struct, holding both v4 and v6 peers in their respective ot_vectors, so the per-
torrent cost shrunk by another pointer's size.
Each peerlist also lost its peer count cache, as in most cases, it's trivial to load it
directly from the ot_vector's entry count. The seed counts that were kept per family only
to be aggregated later for every consumer, are also merged now.
Total savings depend on the tracker's actual load. In some corner cases, where only one
address family dominates the torrents, we actually use a few bytes more in the ot_vector
for the absent family, but even that mostly becomes noise: before it actually adds to the
memory load, the peer payload will be the deciding factor.
Most wins are on what often is experienced on trackers: A long tail of abandoned torrents
now needs eight fewer bytes, slipping into a smaller allocation unit on glibc's allocator.
Start to opentracker's memory requirements2026-11-07T02:55:27ZDirk Englingerdgeist@erdgeist.org2026-11-07T02:55:27Zurn:sha1:bbfd674e08c6b1fa4081f9c678fd220bead749d7
* peer lists for v4 and v6 are now lazily allocated and, more importantly, will be freed once there are no more peers
* The downloaded count is now per torrent and not per peer list anymore, moving in what was alignment loss, anyway
* The (now) per torrent downloaded and the per peer list peer and seed count shrunk from size_t to uint32_t
* A helper guards accesses to the peer and seed count to prevent null pointer dereferences
* The base time also shrank from time_t to uint32_t, minutes since the epoch currently fits in 25 bits
Add a wall clock helper so that statedumps can be written and re-read2026-11-06T13:24:04ZDirk Englingerdgeist@erdgeist.org2026-11-06T13:24:04Zurn:sha1:355c8ae57d582974f4f6a4ba42f635f2253b84a7Bound what load_state will accept for an age2026-11-06T07:28:16ZDirk Englingerdgeist@erdgeist.org2026-11-06T07:28:16Zurn:sha1:83cd3bb631131a116f024cfacfd687e8c4855fd1Answer blacklisted torrent announces with an empty packet, that carries a re-announce timeout2026-11-05T17:18:45ZDirk Englingerdgeist@erdgeist.org2026-11-05T17:18:45Zurn:sha1:c6732a03cbf0efa815e8a857af8118878c053af0Initialise memory before it's pointers are used in case of a failed allocation2026-11-05T15:34:50ZDirk Englingerdgeist@erdgeist.org2026-11-05T15:34:50Zurn:sha1:63bbb9320d101f17e1dc75d35746f5cdff285668Start live sync where main knows the state file is in2026-11-05T15:27:38ZDirk Englingerdgeist@erdgeist.org2026-11-05T15:27:38Zurn:sha1:90038ad8f32926b5e0ee30e3ed1f1cd1a9d22a93Stop the cleaner before the modules it still needs2026-11-05T15:04:38ZDirk Englingerdgeist@erdgeist.org2026-11-05T15:04:38Zurn:sha1:ab538c872d1e1f79feecaa0f85d0ff62216e78e4