Software / code / prosody
Annotate
tools/generate_format_spec.lua @ 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 | 12039:e0a8c5b1ab4f |
| rev | line source |
|---|---|
| 12034 | 1 local format = require"util.format".format; |
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12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
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2 local dump = require"util.serialization".new("oneline") |
| 12034 | 3 local types = { |
| 4 "nil"; | |
| 5 "boolean"; | |
| 6 "number"; | |
| 7 "string"; | |
| 8 "function"; | |
| 9 -- "userdata"; | |
| 10 "thread"; | |
| 11 "table"; | |
| 12 }; | |
| 13 local example_values = { | |
| 14 ["nil"] = { n = 1; nil }; | |
| 15 ["boolean"] = { true; false }; | |
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12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
16 ["number"] = { 97; -12345; 1.5; 73786976294838206464; math.huge; 2147483647 }; |
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82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
17 ["string"] = { "hello"; "foo \1\2\3 bar"; "nödåtgärd"; string.sub("nödåtgärd", 1, -4) }; |
| 12034 | 18 ["function"] = { function() end }; |
| 19 -- ["userdata"] = {}; | |
| 20 ["thread"] = { coroutine.create(function() end) }; | |
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12039
e0a8c5b1ab4f
util.format: Ensure metatable __tostring results are also sanitized
Kim Alvefur <zash@zash.se>
parents:
12037
diff
changeset
|
21 ["table"] = { {}, setmetatable({},{__tostring=function ()return "foo \1\2\3 bar"end}) }; |
| 12034 | 22 }; |
| 23 local example_strings = setmetatable({ | |
| 24 ["nil"] = { "nil" }; | |
| 25 ["function"] = { "function() end" }; | |
|
12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
26 ["number"] = { "97"; "-12345"; "1.5"; "73786976294838206464"; "math.huge"; "2147483647" }; |
| 12034 | 27 ["thread"] = { "coroutine.create(function() end)" }; |
|
12039
e0a8c5b1ab4f
util.format: Ensure metatable __tostring results are also sanitized
Kim Alvefur <zash@zash.se>
parents:
12037
diff
changeset
|
28 ["table"] = { "{ }", "setmetatable({},{__tostring=function ()return \"foo \\1\\2\\3 bar\"end})" } |
| 12034 | 29 }, { __index = function() return {} end }); |
| 30 for _, lua_type in ipairs(types) do | |
| 31 print(string.format("\t\tdescribe(\"%s\", function ()", lua_type)); | |
| 32 local examples = example_values[lua_type]; | |
| 33 for fmt in ("cdiouxXaAeEfgGqs"):gmatch(".") do | |
| 34 print(string.format("\t\t\tdescribe(\"to %%%s\", function ()", fmt)); | |
| 35 print("\t\t\t\tit(\"works\", function ()"); | |
|
12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
36 for i = 1, examples.n or #examples do |
| 12034 | 37 local example = examples[i]; |
| 38 if not tostring(example):match("%w+: 0[xX]%x+") then | |
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12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
39 print(string.format("\t\t\t\t\tassert.equal(%q, format(%q, %s))", format("%" .. fmt, example), "%" .. fmt, |
|
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
40 example_strings[lua_type][i] or dump(example))); |
| 12034 | 41 else |
|
12037
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
42 print(string.format("\t\t\t\t\tassert.matches(\"[%s: 0[xX]%%x+]\", format(%q, %s))", lua_type, "%" .. fmt, |
|
82f6a0b0a425
tools/generate_format_spec: Apply lua-format to silence luacheck
Kim Alvefur <zash@zash.se>
parents:
12034
diff
changeset
|
43 example_strings[lua_type][i] or dump(example))); |
| 12034 | 44 end |
| 45 end | |
| 46 print("\t\t\t\tend);"); | |
| 47 print("\t\t\tend);"); | |
| 48 print() | |
| 49 end | |
| 50 print("\t\tend);"); | |
| 51 print() | |
| 52 end |
