[HELP] Downloading multiple files from HTTP server

[HandBuzz]

 

Hey guys, so I created a script for my server so that players can download mod files from a HTTP server. I have a considerable amount of files and this is a more comfortable way of downloading them.

 Now, I figured it out so players can download a single file, with the following structure (stripped down):

function downloadMod ( name ) --name is correspondent to a clientside list
	if ( name and moddinglist[name] ) then
		local dff = moddinglist[name][1]
		local txd = moddinglist[name][2]
		if ( fileExists ( "mods/"..dff ) ) then			--overwrite old files
			fileDelete ( "mods/"..dff )
		end if ( fileExists ( "mods/"..txd ) ) then		--overwrite old files
			fileDelete ( "mods/"..txd )
		end
		
		downloadingFiles[name] = true  -- a little output so i let the player know what he downloads
		local f = fetchRemote ( httpModDirectory.."/"..dff, function ( data, err, name, dff, txd  )  
			if ( err == 0 ) then
			
				local f = fileCreate ( "mods/"..dff )
				fileWrite (  f, data ) 
				fileClose ( f )
				
				if ( moddinglist[name][4] ) then
					fetchRemote ( httpModDirectory.."/"..txd, function ( data, err, name, name2 ) 
						if ( err == 0 ) then
							local f = fileCreate ( "mods/"..txd )
							fileWrite ( f , data ) 
							fileClose ( f )
                  			-- some more error handling code here, unnecesary
                  			-- and so on

 

Now, as you can figure out i use an external file index with all the values and all that, so that a list can be created with each individual name and file names, and looks something like this

moddinglist = {
  	-- ["Name"] = { "file", "txdfile", vehID, isTXD }
 }

 Finally, I have a question. I want to setup the script so that players could download all the files listed all at once, how could I do that, without eating out all my server's resources?

[IIYAMA]

1 hour ago, HandBuzz said:

without eating out all my server's resources?

What do you mean with that? Are you saying that your scripts are also located in that direction?

 

[HandBuzz]

I wanted to say something that wouldn't cause so much CPU usage, I know some methods may load all the mods at the time and are very laggy for that server as well as the players

I am not very good at efficient scripting, help is welcome

Edited January 21, 2019 by HandBuzz

[HandBuzz]

33 minutes ago, IIYAMA said:

What do you mean with that? Are you saying that your scripts are also located in that direction?

 

I wanted to say something that wouldn't cause so much CPU usage, I know some methods may load all the mods at the time and are very laggy for that server as well as the players

I am not very good at efficient scripting, help is welcome

[IIYAMA]

27 minutes ago, HandBuzz said:

I wanted to say something that wouldn't cause so much CPU usage, I know some methods may load all the mods at the time and are very laggy for that server as well as the players

I am not very good at efficient scripting, help is welcome

If you are worrying about the internet usage. Get yourself a second server. Which can be a cloud server. This will reduce the impact on your main server.

 

 

As for the clients. The most laggy part is loading the mods.

You can queue processes like this:

(untested)

local nextModLoading = 0

local function processMods (modsInQueue)
  	local timeNow = getTickCount()
	if timeNow > nextModLoading then
		local newMod = modsInQueue[1]
		-- load mods
    	
		table.remove(modsInQueue, 1)
		nextModLoading = timeNow + 300
	end
	if #modsInQueue == 0 then
		removeRenderEvent(processMods)
	end
end

do 
	local modsInQueue = {}

	function addModToLoader (newMod)
		modsInQueue[#modsInQueue + 1] = newMod
		addRenderEvent(processMods, nil, modsInQueue)
	end
end

 

 

 

Edited January 21, 2019 by IIYAMA