Software /
code /
prosody
File
spec/scansion/pep_publish_subscribe.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 | 12963:276b7d470433 |
line wrap: on
line source
# PEP publish, subscribe and publish-options [Client] Romeo jid: pep-test-wjebo4kg@localhost password: password [Client] Juliet jid: pep-test-tqvqu_pv@localhost password: password ----- Romeo connects Romeo sends: <presence> <c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/> </presence> Romeo receives: <iq type='get' id='disco' from="${Romeo's JID}"> <query node='http://code.matthewwild.co.uk/verse/#PDH7CGVPRERS2WUqBD18PHGEzaY=' xmlns='http://jabber.org/protocol/disco#info'/> </iq> Romeo receives: <presence from="${Romeo's full JID}"> <c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/> </presence> Romeo sends: <iq type='get' id='6'> <query ver='' xmlns='jabber:iq:roster'/> </iq> Romeo receives: <iq type='result' id='6'> <query ver='1' xmlns='jabber:iq:roster'/> </iq> Juliet connects Juliet sends: <presence> <c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/> </presence> Juliet receives: <iq type='get' id='disco' from="${Juliet's JID}"> <query node='http://code.matthewwild.co.uk/verse/#PDH7CGVPRERS2WUqBD18PHGEzaY=' xmlns='http://jabber.org/protocol/disco#info'/> </iq> Juliet receives: <presence from="${Juliet's full JID}"> <c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/> </presence> Juliet sends: <iq type='get' id='6'> <query ver='' xmlns='jabber:iq:roster'/> </iq> Juliet receives: <iq type='result' id='6'> <query ver='1' xmlns='jabber:iq:roster'/> </iq> Romeo sends: <iq type='result' id='disco' to='pep-test-wjebo4kg@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#PDH7CGVPRERS2WUqBD18PHGEzaY='><identity type='pc' name='Verse' category='client'/><feature var='http://jabber.org/protocol/disco#info'/><feature var='http://jabber.org/protocol/disco#items'/><feature var='http://jabber.org/protocol/caps'/></query></iq> Romeo sends: <presence type='subscribe' to="${Juliet's JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='set' id='{scansion:any}'><query ver='1' xmlns='jabber:iq:roster'><item ask='subscribe' jid='pep-test-tqvqu_pv@localhost' subscription='none'/></query></iq> Romeo receives: <presence type='unavailable' to='pep-test-wjebo4kg@localhost' from='pep-test-tqvqu_pv@localhost'/> Juliet receives: <presence type='subscribe' from='pep-test-wjebo4kg@localhost' to='pep-test-tqvqu_pv@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Juliet sends: <iq type='result' id='disco' to='pep-test-tqvqu_pv@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#PDH7CGVPRERS2WUqBD18PHGEzaY='><identity type='pc' name='Verse' category='client'/><feature var='http://jabber.org/protocol/disco#info'/><feature var='http://jabber.org/protocol/disco#items'/><feature var='http://jabber.org/protocol/caps'/></query></iq> Juliet sends: <presence type='subscribe' to="${Romeo's JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Juliet receives: <iq type='set' id='{scansion:any}'><query ver='2' xmlns='jabber:iq:roster'><item ask='subscribe' jid='pep-test-wjebo4kg@localhost' subscription='none'/></query></iq> Juliet receives: <presence type='unavailable' to='pep-test-tqvqu_pv@localhost' from='pep-test-wjebo4kg@localhost'/> Romeo receives: <presence type='subscribe' from='pep-test-tqvqu_pv@localhost' to='pep-test-wjebo4kg@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo sends: <iq type='result' id='fixme'/> Romeo sends: <presence type='subscribed' to='pep-test-tqvqu_pv@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='set' id='{scansion:any}'><query ver='3' xmlns='jabber:iq:roster'><item ask='subscribe' jid='pep-test-tqvqu_pv@localhost' subscription='from'/></query></iq> Juliet receives: <presence type='subscribed' from='pep-test-wjebo4kg@localhost' to='pep-test-tqvqu_pv@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Juliet receives: <iq type='set' id='{scansion:any}'><query ver='3' xmlns='jabber:iq:roster'><item jid='pep-test-wjebo4kg@localhost' subscription='to'/></query></iq> Juliet receives: <presence to='pep-test-tqvqu_pv@localhost' from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/><delay xmlns='urn:xmpp:delay' stamp='{scansion:any}' from='localhost'/></presence> Juliet sends: <presence type='subscribed' to='pep-test-wjebo4kg@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Juliet receives: <iq type='set' id='{scansion:any}'><query ver='4' xmlns='jabber:iq:roster'><item jid='pep-test-wjebo4kg@localhost' subscription='both'/></query></iq> Juliet receives: <presence to='pep-test-tqvqu_pv@localhost' from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/><delay xmlns='urn:xmpp:delay' stamp='{scansion:any}' from='localhost'/></presence> Romeo receives: <presence type='subscribed' from='pep-test-tqvqu_pv@localhost' to='pep-test-wjebo4kg@localhost'><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='set' id='{scansion:any}'><query ver='4' xmlns='jabber:iq:roster'><item jid='pep-test-tqvqu_pv@localhost' subscription='both'/></query></iq> Romeo receives: <presence to='pep-test-wjebo4kg@localhost' from="${Juliet's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='PDH7CGVPRERS2WUqBD18PHGEzaY=' node='http://code.matthewwild.co.uk/verse/'/><delay xmlns='urn:xmpp:delay' stamp='{scansion:any}' from='localhost'/></presence> Juliet sends: <iq type='result' id='fixme'/> Romeo sends: <iq type='result' id='fixme'/> Romeo sends: <iq type='result' id='fixme'/> Romeo sends: <presence><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='m/sIsyfzKk8X1okZMtStR43nQQg=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='get' id='disco' from='pep-test-wjebo4kg@localhost'><query node='http://code.matthewwild.co.uk/verse/#m/sIsyfzKk8X1okZMtStR43nQQg=' xmlns='http://jabber.org/protocol/disco#info'/></iq> Romeo receives: <presence from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='m/sIsyfzKk8X1okZMtStR43nQQg=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='get' id='disco' from='pep-test-tqvqu_pv@localhost'><query node='http://code.matthewwild.co.uk/verse/#m/sIsyfzKk8X1okZMtStR43nQQg=' xmlns='http://jabber.org/protocol/disco#info'/></iq> Juliet receives: <presence from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='m/sIsyfzKk8X1okZMtStR43nQQg=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo sends: <presence><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='IfQwbaaDB4LEP5tkGArEaB/3Y+s=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='get' id='disco' from='pep-test-wjebo4kg@localhost'><query node='http://code.matthewwild.co.uk/verse/#IfQwbaaDB4LEP5tkGArEaB/3Y+s=' xmlns='http://jabber.org/protocol/disco#info'/></iq> Romeo receives: <presence from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='IfQwbaaDB4LEP5tkGArEaB/3Y+s=' node='http://code.matthewwild.co.uk/verse/'/></presence> Romeo receives: <iq type='get' id='disco' from='pep-test-tqvqu_pv@localhost'><query node='http://code.matthewwild.co.uk/verse/#IfQwbaaDB4LEP5tkGArEaB/3Y+s=' xmlns='http://jabber.org/protocol/disco#info'/></iq> Romeo sends: <iq type='result' id='disco' to='pep-test-wjebo4kg@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#m/sIsyfzKk8X1okZMtStR43nQQg='/></iq> Romeo sends: <iq type='result' id='disco' to='pep-test-tqvqu_pv@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#m/sIsyfzKk8X1okZMtStR43nQQg='/></iq> Romeo sends: <iq type='result' id='disco' to='pep-test-wjebo4kg@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#IfQwbaaDB4LEP5tkGArEaB/3Y+s='><identity type='pc' name='Verse' category='client'/><feature var='http://jabber.org/protocol/tune+notify'/><feature var='http://jabber.org/protocol/disco#info'/><feature var='http://jabber.org/protocol/disco#items'/><feature var='http://jabber.org/protocol/caps'/><feature var='http://jabber.org/protocol/mood+notify'/></query></iq> Juliet receives: <presence from="${Romeo's full JID}"><c xmlns='http://jabber.org/protocol/caps' hash='sha-1' ver='IfQwbaaDB4LEP5tkGArEaB/3Y+s=' node='http://code.matthewwild.co.uk/verse/'/></presence> Juliet sends: <iq type='result' id='fixme'/> Juliet sends: <iq type='set' id='7'><pubsub xmlns='http://jabber.org/protocol/pubsub'><publish node='http://jabber.org/protocol/tune'><item id='current'><tune xmlns='http://jabber.org/protocol/tune'><title>Beautiful Cedars</title><artist>The Spinners</artist><source>Not Quite Folk</source><track>4</track></tune></item></publish></pubsub></iq> Juliet receives: <iq type='result' id='7' ><pubsub xmlns='http://jabber.org/protocol/pubsub'><publish node='http://jabber.org/protocol/tune'><item id='current'/></publish></pubsub></iq> Juliet sends: <iq type='set' id='8'><pubsub xmlns='http://jabber.org/protocol/pubsub'><publish node='http://jabber.org/protocol/mood'><item><mood xmlns='http://jabber.org/protocol/mood'><happy/></mood></item></publish><publish-options><x type='submit' xmlns='jabber:x:data'><field type='hidden' var='FORM_TYPE'><value>http://jabber.org/protocol/pubsub#publish-options</value></field><field var='pubsub#persist_items'><value>true</value></field><field var='pubsub#access_model'><value>whitelist</value></field></x></publish-options></pubsub></iq> Juliet receives: <iq type='result' id='8'><pubsub xmlns='http://jabber.org/protocol/pubsub'><publish node='http://jabber.org/protocol/mood'><item id='{scansion:any}'/></publish></pubsub></iq> Juliet sends: <iq type='result' id='{scansion:any}'/> Romeo receives: <message type='headline' from='pep-test-tqvqu_pv@localhost'><event xmlns='http://jabber.org/protocol/pubsub#event'><items node='http://jabber.org/protocol/tune'><item id='current'><tune xmlns='http://jabber.org/protocol/tune'><title>Beautiful Cedars</title><artist>The Spinners</artist><source>Not Quite Folk</source><track>4</track></tune></item></items></event></message> Romeo sends: <iq type='result' id='disco' to='pep-test-tqvqu_pv@localhost'><query xmlns='http://jabber.org/protocol/disco#info' node='http://code.matthewwild.co.uk/verse/#IfQwbaaDB4LEP5tkGArEaB/3Y+s='><identity type='pc' name='Verse' category='client'/><feature var='http://jabber.org/protocol/tune+notify'/><feature var='http://jabber.org/protocol/disco#info'/><feature var='http://jabber.org/protocol/disco#items'/><feature var='http://jabber.org/protocol/caps'/><feature var='http://jabber.org/protocol/mood+notify'/></query></iq> Romeo receives: <message type='headline' from='pep-test-tqvqu_pv@localhost'><event xmlns='http://jabber.org/protocol/pubsub#event'><items node='http://jabber.org/protocol/tune'><item id='current'><tune xmlns='http://jabber.org/protocol/tune'><title>Beautiful Cedars</title><artist>The Spinners</artist><source>Not Quite Folk</source><track>4</track></tune></item></items></event></message> Juliet disconnects Romeo disconnects