Software /
code /
prosody
File
spec/scansion/pubsub_advanced.scs @ 11661:735b8f4a6d7e
net.http: Send entire HTTP request header as one write
When opportunistic writes are enabled this reduces the number of
syscalls and TCP packets sent on the wire.
Experiments with TCP Fast Open made this even more obvious.
That table trick probably wasn't as efficient. Lua generates bytecode
for a table with zero array slots and space for two entries in the hash
part, plus code to set [2] and [4]. I didn't verify but I suspect it
would have had to resize the table when setting [1] and [3], although
probably only once. Concatenating the strings directly in Lua is easier
to read and involves no extra table or function call.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Thu, 08 Jul 2021 18:21:59 +0200 |
parent | 11429:ef623d719894 |
child | 11714:d783716103c1 |
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# Pubsub: Node creation, publish, subscribe, affiliations and delete [Client] Balthasar jid: admin@localhost password: password [Client] Romeo jid: romeo@localhost password: password [Client] Juliet jid: juliet@localhost password: password --------- Romeo connects Romeo sends: <iq type="set" to="pubsub.localhost" id='create1'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <create node="princely_musings"/> </pubsub> </iq> Romeo receives: <iq type="error" id='create1'> <error type="auth"> <forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/> </error> </iq> Balthasar connects Balthasar sends: <iq type='set' to='pubsub.localhost' id='create2'> <pubsub xmlns='http://jabber.org/protocol/pubsub'> <create node='princely_musings'/> </pubsub> </iq> Balthasar receives: <iq type="result" id='create2'/> Balthasar sends: <iq type="set" to="pubsub.localhost" id='create3'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <create node="princely_musings"/> </pubsub> </iq> Balthasar receives: <iq type="error" id='create3'> <error type="cancel"> <conflict xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/> </error> </iq> Juliet connects Juliet sends: <iq type="set" to="pubsub.localhost" id='sub1'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <subscribe node="princely_musings" jid="${Romeo's full JID}"/> </pubsub> </iq> Juliet receives: <iq type="error" id='sub1'/> Juliet sends: <iq type="set" to="pubsub.localhost" id='sub2'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <subscribe node="princely_musings" jid="${Juliet's full JID}"/> </pubsub> </iq> Juliet receives: <iq type="result" id='sub2'> <pubsub xmlns='http://jabber.org/protocol/pubsub'> <subscription jid="${Juliet's full JID}" node='princely_musings' subscription='subscribed'/> </pubsub> </iq> Balthasar sends: <iq type="get" id='aff1' to='pubsub.localhost'> <pubsub xmlns="http://jabber.org/protocol/pubsub#owner"> <affiliations node="princely_musings"/> </pubsub> </iq> Balthasar receives: <iq type="result" id='aff1' from='pubsub.localhost'> <pubsub xmlns="http://jabber.org/protocol/pubsub#owner"> <affiliations node="princely_musings"> <affiliation affiliation='owner' jid='admin@localhost' xmlns='http://jabber.org/protocol/pubsub#owner'/> </affiliations> </pubsub> </iq> Balthasar sends: <iq type="set" id='aff2' to='pubsub.localhost'> <pubsub xmlns="http://jabber.org/protocol/pubsub#owner"> <affiliations node="princely_musings"> <affiliation affiliation='owner' jid='admin@localhost' xmlns='http://jabber.org/protocol/pubsub#owner'/> <affiliation jid="${Romeo's JID}" affiliation="publisher"/> </affiliations> </pubsub> </iq> Balthasar receives: <iq type="result" id='aff2' from='pubsub.localhost'/> Romeo sends: <iq type="set" to="pubsub.localhost" id='pub1'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <publish node="princely_musings"> <item id="current"> <entry xmlns="http://www.w3.org/2005/Atom"> <title>Soliloquy</title> <summary>Lorem ipsum dolor sit amet</summary> </entry> </item> </publish> </pubsub> </iq> Juliet receives: <message type="headline" from="pubsub.localhost"> <event xmlns="http://jabber.org/protocol/pubsub#event"> <items node="princely_musings"> <item id="current"> <entry xmlns="http://www.w3.org/2005/Atom"> <title>Soliloquy</title> <summary>Lorem ipsum dolor sit amet</summary> </entry> </item> </items> </event> </message> Romeo receives: <iq type="result" id='pub1'/> Juliet sends: <iq type="set" to="pubsub.localhost" id='unsub1'> <pubsub xmlns="http://jabber.org/protocol/pubsub"> <unsubscribe node="princely_musings" jid="${Juliet's full JID}"/> </pubsub> </iq> Juliet receives: <iq type="result" id='unsub1'> <pubsub xmlns='http://jabber.org/protocol/pubsub'> <subscription jid="${Juliet's full JID}" node='princely_musings' subscription='none'/> </pubsub> </iq> Balthasar sends: <iq type="set" to="pubsub.localhost" id='del1'> <pubsub xmlns="http://jabber.org/protocol/pubsub#owner"> <delete node="princely_musings"/> </pubsub> </iq> Balthasar receives: <iq type="result" from='pubsub.localhost' id='del1'/> Romeo disconnects // vim: syntax=xml: