54 lines
2.1 KiB
Markdown
54 lines
2.1 KiB
Markdown
---
|
|
title: Lua API reference
|
|
weight: 55
|
|
chapter: false
|
|
toc: false
|
|
---
|
|
|
|
This section documents the Mesen-specific Lua API that is available in scripts via the [script window](/debugging/scriptwindow.html).
|
|
|
|
## Changelog ##
|
|
|
|
To get a list of API changes between different versions of Mesen-S, take a look at the [Changelog](/apireference/changelog.html).
|
|
|
|
## API References ##
|
|
|
|
* [Callbacks](/apireference/callbacks.html)
|
|
* [Drawing](/apireference/drawing.html)
|
|
* [Emulation](/apireference/emulation.html)
|
|
* [Input](/apireference/input.html)
|
|
* [Logging](/apireference/logging.html)
|
|
* [Memory Access](/apireference/memoryaccess.html)
|
|
* [Miscellaneous](/apireference/misc.html)
|
|
* [Enums](/apireference/enums.html)
|
|
|
|
|
|
## Additional features ##
|
|
|
|
### LuaSocket ###
|
|
|
|
The Lua implementation found in Mesen-S has a version of [LuaSocket](http://w3.impa.br/~diego/software/luasocket/) ([GitHub](https://github.com/diegonehab/luasocket)) built into it. The `socket` and `mime` packages are available and can be accessed by using `local socket = require("socket.core")` and `local mime = require("mime.core")`, respectively.
|
|
|
|
See [LuaSocket's documentation](http://w3.impa.br/~diego/software/luasocket/reference.html) for more information on how to use this library.
|
|
|
|
Here is a tiny TCP socket sample that connects to google.com via HTTP and downloads the page:
|
|
```
|
|
local socket = require("socket.core")
|
|
local tcp = sock.tcp()
|
|
|
|
--Set a 2-second timeout for all request, otherwise the process could hang!
|
|
tcp:settimeout(2)
|
|
local res = tcp:connect("www.google.com", 80)
|
|
tcp:send("GET / HTTP/1.1\r\nHost: www.google.com\r\nConnection: close\r\n\r\n")
|
|
|
|
local text
|
|
repeat
|
|
text = tcp:receive()
|
|
emu.log(text)
|
|
until text == nil
|
|
```
|
|
|
|
{{% notice warning %}}
|
|
Using sockets without calling the `settimeout(seconds)` function (and specifying a reasonable number of seconds) first can result in the Mesen-S process hanging until the socket finishes the operation it is waiting for.
|
|
For this reason, it is highly recommended to **ALWAYS** call `settimeout(seconds)` on any newly created TCP/etc object before calling any other function on it.
|
|
{{% /notice %}}
|