Mercurial > prosody-modules
annotate mod_statistics_mem/mod_statistics_mem.lua @ 3656:3e0f4d727825
mod_vcard_muc: Add an alternative method of signaling avatar change
When the avatar has been changed, a signal is sent that the room
configuration has changed. Clients then do a disco#info query to find
the SHA-1 of the new avatar. They can then fetch it as before, or not if
they have it cached already.
This is meant to be less disruptive than signaling via presence, which
caused problems for some clients.
If clients transition to the new method, the old one can eventually be removed.
The namespace is made up while waiting for standardization.
Otherwise it is very close to what's described in
https://xmpp.org/extensions/inbox/muc-avatars.html
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 25 Aug 2019 20:46:43 +0200 |
parents | 403d5cd924eb |
children |
rev | line source |
---|---|
1379
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
1 -- Probably Linux-specific memory statistics |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
2 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
3 module:set_global(); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
4 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
5 local human; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
6 do |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
7 local tostring = tostring; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
8 local s_format = string.format; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
9 local m_floor = math.floor; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
10 local m_max = math.max; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
11 local prefixes = "kMGTPEZY"; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
12 local multiplier = 1024; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
13 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
14 function human(num) |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
15 num = tonumber(num) or 0; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
16 local m = 0; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
17 while num >= multiplier and m < #prefixes do |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
18 num = num / multiplier; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
19 m = m + 1; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
20 end |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
21 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
22 return s_format("%0."..m_max(0,3-#tostring(m_floor(num))).."f%sB", |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
23 num, m > 0 and (prefixes:sub(m,m) .. "i") or ""); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
24 end |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
25 end |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
26 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
27 |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
28 local pagesize = 4096; -- according to getpagesize() |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
29 module:provides("statistics", { |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
30 statistics = { |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
31 memory_total = { -- virtual memory |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
32 get = function () |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
33 local statm, err = io.open"/proc/self/statm"; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
34 if statm then |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
35 local total = statm:read"*n"; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
36 statm:close(); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
37 return total * pagesize; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
38 else |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
39 module:log("debug", err); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
40 end |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
41 end; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
42 tostring = human; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
43 }; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
44 memory_rss = { -- actual in-memory data size |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
45 get = function () |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
46 local statm, err = io.open"/proc/self/statm"; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
47 if statm then |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
48 statm:read"*n"; -- Total size, ignore |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
49 local rss = statm:read"*n"; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
50 statm:close(); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
51 return rss * pagesize; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
52 else |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
53 module:log("debug", err); |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
54 end |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
55 end; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
56 tostring = human; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
57 }; |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
58 } |
403d5cd924eb
mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
59 }); |