Very simple preemptive scheduler for Lua.

lsched is a very simple preemptive scheduler for Lua.

License: MIT (see LICENSE)

Dependencies

Lua = 5.2

Compilation

To compile, just type the following command in the terminal:

make

If you are on a debian-like system and you have installed all the required dependencies, it should work as-is. If you are out of luck, you can tweak the compilation process using the following variables:

• LUA_CFLAGS

For example, if the Lua development headers are not in a common location, you can try:

make LUA_CFLAGS="-I/path/to/lua/headers"

Documentation

The first thing to do is to create a scheduler:

local lsched = require('lsched')
local sched = lsched.new()

Then you can start adding threads to the scheduler:

sched:new_thread(function(msg) while true do print(msg) end end, 'Hello world')
-- it's also possible to specify the number of instructions a thread will
-- execute before releasing control to another thread. To do that pass an
-- integer as the first argument to the new_thread() method.
sched:new_thread(10, function() while true do print('foo') end end)

Finally run the scheduler:

sched:run()

When all threads managed by the scheduler terminate or die, the run() method returns. It is possible to add new threads to the scheduler while it is running.