prosody
affaf6d08d26
spec/scansion/keep_full_sub_req.scs
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spec/scansion/keep_full_sub_req.scs @ 13186:affaf6d08d26
util.datamanager: Pad list writes to avoid crossing block boundaries
By padding items so that they do not cross block boundaries, it becomes
eaiser to delete whole blocks with fallocate() without cutting items
in half, improving efficiency of such operations.
Since list stores are used for message archives, where the most common
deletion operation would be of the oldest entires, at the top of the
file. With this, all blocks that contain items to be removed could be
deleted without needing to read, delete and write out the whole file.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Wed, 07 Jun 2023 00:39:30 +0200 |
| parent | 10515:35bf3b80480f |
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# server MUST keep a record of the complete presence stanza comprising the subscription request (#689) [Client] Alice jid: pars-a@localhost password: password [Client] Bob jid: pars-b@localhost password: password [Client] Bob's phone jid: pars-b@localhost/phone password: password --------- Alice connects Alice sends: <presence to="${Bob's JID}" type="subscribe"> <preauth xmlns="urn:xmpp:pars:0" token="1tMFqYDdKhfe2pwp" /> </presence> Alice disconnects Bob connects Bob sends: <presence/> Bob receives: <presence from="${Bob's full JID}"/> Bob receives: <presence from="${Alice's JID}" type="subscribe"> <preauth xmlns="urn:xmpp:pars:0" token="1tMFqYDdKhfe2pwp" /> </presence> Bob disconnects # Works if they reconnect too Bob's phone connects Bob's phone sends: <presence/> Bob's phone receives: <presence from="${Bob's phone's full JID}"/> Bob's phone receives: <presence from="${Alice's JID}" type="subscribe"> <preauth xmlns="urn:xmpp:pars:0" token="1tMFqYDdKhfe2pwp" /> </presence> Bob's phone disconnects
