Software /
code /
prosody
Annotate
util/import.lua @ 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> |
---|---|
date | Sat, 09 Nov 2024 00:37:15 +0100 |
parent | 12589:39ae08180c81 |
rev | line source |
---|---|
1523
841d61be198f
Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents:
896
diff
changeset
|
1 -- Prosody IM |
2923
b7049746bd29
Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents:
1523
diff
changeset
|
2 -- Copyright (C) 2008-2010 Matthew Wild |
b7049746bd29
Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents:
1523
diff
changeset
|
3 -- Copyright (C) 2008-2010 Waqas Hussain |
5776
bd0ff8ae98a8
Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
2923
diff
changeset
|
4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
519
cccd610a0ef9
Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents:
49
diff
changeset
|
7 -- |
cccd610a0ef9
Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents:
49
diff
changeset
|
8 |
cccd610a0ef9
Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents:
49
diff
changeset
|
9 |
49
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
10 |
12589
39ae08180c81
compat: Remove handling of Lua 5.1 location of 'unpack' function
Kim Alvefur <zash@zash.se>
parents:
9692
diff
changeset
|
11 local unpack = table.unpack; |
49
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
12 local t_insert = table.insert; |
8570
a4ef8cfa97bd
util.import: Explicitly export the global import function [luacheck]
Kim Alvefur <zash@zash.se>
parents:
8389
diff
changeset
|
13 function _G.import(module, ...) |
49
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
14 local m = package.loaded[module] or require(module); |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
15 if type(m) == "table" and ... then |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
16 local ret = {}; |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
17 for _, f in ipairs{...} do |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
18 t_insert(ret, m[f]); |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
19 end |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
20 return unpack(ret); |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
21 end |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
22 return m; |
1cd2a8db392d
New "import" module to help tidy up all the local declarations at the top of modules
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
23 end |