[REL] MTA Async Library [Multiple threads, Priority config]

[Inlife]

MTA Lua Asynchronous Computing

Description:

MTA:SA Async library. If you have some heavy cyclic operations, that are dropping "Infinite/too long execution", or operations that "freeze" your server for couple seconds, you can use this library. It supports multiple running threads at a time.

Installation & Instructions:

https://github.com/Inlife/mta-lua-async

Enable debug, if you need to (it will print some useful information in server console)

Async:setDebug(true); 

Iterate on interval from 1 to 50,000,000 while calculating some data on every iteration

(if you run standart "for" cycle, mta server will "freeze" for several seconds)

Async:iterate(1, 50000000, function(i) 
    local x = (i + 2) * i; -- heavy opreation 
    outputServerLog(x); 
end); 

Iterate over big array of data

Async:foreach(vehicles, function(vehicle) 
    vehicle:setHealth(1000); 
end); 

There also an options for changing speed of your async caclulations:

Async:setPriority("low");    -- better fps 
async:setPriority("normal"); -- medium 
async:setPriority("high");   -- better perfomance 
  
-- or, more advanced 
async:setPriority(500, 100); 
-- 500ms is "sleeping" time,  
-- 100ms is "working" time, for every current async thread 

Example:

local _connection; -- initialized database connection 
local vehicles = {}; 
  
Async:setDebug(true); 
Async:setPriority("low"); 
  
dbQuery(function(qh) 
    local data = dbPoll(qh, 0);  
  
    Async:foreach(data, function(vehicle) 
  
        local _vehicle = createVehicle( vehicle.model, vehicle.x, vehicle.y, vehicle.z ); 
        -- other stuff 
        -- ... 
        table.insert(vehicles, _vehicle); 
  
    end); 
  
    -- and run dummy cycle at the same time (just for fun ) 
    Async:iterate(0, 500000, function(num) 
        outputServerLog(num); 
    end); 
  
end, _connection, "SELECT * FROM vehicles"); 

Edited June 22, 2016 by Guest

[The Creator]

Useful library. Starred. Keep it up!

[Inlife]

Useful library. Starred. Keep it up!

Thanks !

[botder]

Looks nice, but your dependency is pretty useless for that library and you could have added that on your own with metatables.

[Inlife]

Looks nice, but your dependency is pretty useless for that library and you could have added that on your own with metatables.

I thought about it. Maybe i'll do this in the next release. )

[qaisjp]

Nice one Inlife OOP ftw. Just one thing, it uses coroutines, which doesn't really utilise true threads.

[ma2med]

good job

[qaisjp]

I talked to bartbes (I know him), he said he's happy he's finally seen someone use his library

[spoty]

looks nice and it can also be used to save scores?

[Inlife]

Nice one Inlife OOP ftw. Just one thing, it uses coroutines, which doesn't really utilise true threads.

Thanks !

Yeah, that's why i tried to imitate something similar to threads.

I talked to bartbes (I know him), he said he's happy he's finally seen someone use his library

It's awesome library, i using it for 2 years now. Tell bartbes that im very grateful

[Inlife]

good job

Thank you ! )

[Inlife]

looks nice and it can also be used to save scores?

I think so, it mostly depends on your realization.

Can you provide some example ?

[ma2med]

There is error I can't use it: 'attempt to call global 'class' (a nil value) at line 7'

[The Creator]

There is error I can't use it: 'attempt to call global 'class' (a nil value) at line 7'

Download latest version of slither.lua (Dependency)

Download latest version of async.lua

Update your meta.xml

    <script src="path/to/lib/slither.lua" type="shared" /> -- it. 
    <script src="path/to/lib/async.lua" type="shared" /> 

Check it.

[ma2med]

There is error I can't use it: 'attempt to call global 'class' (a nil value) at line 7'

Download latest version of slither.lua (Dependency)

Download latest version of async.lua

Update your meta.xml

    <script src="path/to/lib/slither.lua" type="shared" /> -- it. 
    <script src="path/to/lib/async.lua" type="shared" /> 

Check it.

I already do that but I changed the script location (path/to/lib/slither.lua) to (slither.lua) same for the second one

[Inlife]

There is error I can't use it: 'attempt to call global 'class' (a nil value) at line 7'

Download latest version of slither.lua (Dependency)

Download latest version of async.lua

Update your meta.xml

    <script src="path/to/lib/slither.lua" type="shared" /> -- it. 
    <script src="path/to/lib/async.lua" type="shared" /> 

Check it.

I already do that but I changed the script location (path/to/lib/slither.lua) to (slither.lua) same for the second one

Changing path is ok.

I updated installation instructions.

https://github.com/Inlife/mta-lua-async#installation

Thanks for feedback