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doc/roster_format.txt @ 13552:f0b2c026e542
net.server_epoll: Improve efficiency of sending much buffered data
Problem: The string slice operations when a lot of data gets buffered
ends up being expensive and memory-consuming. We have util.dbuffer for
precisely this kind of thing.
I want to keep the behavior of writebuffer being upgraded from nil to a
string to full buffer since the last step involves three table
allocations, where the previous buffer method only used one. Avoiding
those allocations for simple writes like white space keep alive feels
like it would keep memory churn down.
This work was started in 2020
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 09 Nov 2024 00:37:15 +0100 |
parent | 132:9a4aa57af367 |
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This file documents the structure of the roster object. table roster { [string bare_jid] = roster_item } table roster_item { string subscription = "none" | "to" | "from" | "both" string name = Opaque string set by client. (optional) set groups = a set of opaque strings set by the client boolean ask = nil | "subscribe" - a value of true indicates subscription is pending } The roster is available as hosts[host].sessions[username].roster and a copy is made to session.roster for all sessions. All modifications to a roster should be done through the rostermanager.