prosody
d7853bbc88ea
util/human/units.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/human/units.lua @ 12796:d7853bbc88ea 0.12

mod_smacks: Disable resumption behavior on s2s Since resumption is not supported on s2s currently, there is no point in allocating resumption tokens. The code that removes entries from session_registry is only invoked for c2s sessions, thus enabling resumable smacks on s2s adds an entry that never goes away.
author Kim Alvefur <zash@zash.se>
date Sun, 13 Nov 2022 18:16:59 +0100
parent 10903:c5f26f9adb31
child 12573:0f4feaf9ca64
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10889
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
1 local math_abs = math.abs;
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
2 local math_ceil = math.ceil;
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
3 local math_floor = math.floor;
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
4 local math_log = math.log;
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
5 local math_max = math.max;
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
6 local math_min = math.min;
10888
42a0d9089de9 util.human.units: Handle location of unpack() in Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10886
diff changeset
7 local unpack = table.unpack or unpack; --luacheck: ignore 113
42a0d9089de9 util.human.units: Handle location of unpack() in Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10886
diff changeset
8
10890
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
9 if math_log(10, 10) ~= 1 then
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
10 -- Lua 5.1 COMPAT
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
11 local log10 = math.log10;
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
12 function math_log(n, base)
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
13 return log10(n) / log10(base);
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
14 end
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
15 end
a451f80d1cea util.human.units: Handle lack of math.log(n, base) on Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10889
diff changeset
16
10886
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 local large = {
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 "k", 1000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 "M", 1000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 "G", 1000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21 "T", 1000000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 "P", 1000000000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23 "E", 1000000000000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 "Z", 1000000000000000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25 "Y", 1000000000000000000000000,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26 }
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27 local small = {
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 "m", 0.001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 "μ", 0.000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 "n", 0.000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31 "p", 0.000000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 "f", 0.000000000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 "a", 0.000000000000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34 "z", 0.000000000000000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 "y", 0.000000000000000000000001,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 }
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 local binary = {
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 "Ki", 2^10,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 "Mi", 2^20,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 "Gi", 2^30,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 "Ti", 2^40,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43 "Pi", 2^50,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 "Ei", 2^60,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45 "Zi", 2^70,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46 "Yi", 2^80,
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
47 }
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
48
10903
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
49 local function adjusted_unit(n, b)
10889
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
50 local round = math_floor;
10886
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
51 local prefixes = large;
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
52 local logbase = 1000;
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
53 if b == 'b' then
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
54 prefixes = binary;
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55 logbase = 1024;
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
56 elseif n < 1 then
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
57 prefixes = small;
10889
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
58 round = math_ceil;
10886
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
59 end
10889
25e0ec11b4e4 util.human.units: Put math functions into locals
Kim Alvefur <zash@zash.se>
parents: 10888
diff changeset
60 local m = math_max(0, math_min(8, round(math_abs(math_log(math_abs(n), logbase)))));
10888
42a0d9089de9 util.human.units: Handle location of unpack() in Lua 5.1
Kim Alvefur <zash@zash.se>
parents: 10886
diff changeset
61 local prefix, multiplier = unpack(prefixes, m * 2-1, m*2);
10903
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
62 return multiplier or 1, prefix;
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
63 end
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
64
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
65 -- n: number, the number to format
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
66 -- unit: string, the base unit
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
67 -- b: optional enum 'b', thousands base
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
68 local function format(n, unit, b) --> string
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
69 local fmt = "%.3g %s%s";
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
70 if n == 0 then
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
71 return fmt:format(n, "", unit);
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
72 end
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
73 local multiplier, prefix = adjusted_unit(n, b);
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
74 return fmt:format(n / multiplier, prefix or "", unit);
10886
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
75 end
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
76
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
77 return {
10903
c5f26f9adb31 util.human.units: Factor out function for getting multiplier
Kim Alvefur <zash@zash.se>
parents: 10890
diff changeset
78 adjust = adjusted_unit;
10886
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
79 format = format;
994c4a333199 util.human.units: A library for formatting numbers with SI units
Kim Alvefur <zash@zash.se>
parents:
diff changeset
80 };