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(LUA) Thread class in CE.

 
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Dr.Disrespect
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PostPosted: Tue Nov 20, 2018 2:06 pm    Post subject: (LUA) Thread class in CE. Reply with quote
Problem: my trainer becomes laggy if I set a timer and do several checks like this. I think it's related to the "getProcessIDFromProcessName" function:
Code:

if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
    FormClose()
end


If the timer has a two-second interval, my trainer lags every two-second.

I have tried to use the "Thread" class, but it didn't work, the lag was still there.
Code:

function check()
   if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
      FormClose()
   end
end

createThread(check())

--this doesn't work


Is there a way to fix this?
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ParkourPenguin
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PostPosted: Tue Nov 20, 2018 3:00 pm    Post subject: Reply with quote
That's not how Lua works. You're invoking the check function and passing the result (nothing) to createThread, which I hope will gracefully fail and not cause any memory leaks.

I can't post example code because cloudfare thinks it's malicious, but there are plenty of examples using createThread if you search for them.
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Dr.Disrespect
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PostPosted: Tue Nov 20, 2018 4:07 pm    Post subject: Reply with quote
ParkourPenguin wrote:
That's not how Lua works. You're invoking the check function and passing the result (nothing) to createThread, which I hope will gracefully fail and not cause any memory leaks.

I can't post example code because cloudfare thinks it's malicious, but there are plenty of examples using createThread if you search for them.


Thanks, ParkourPenguin.
I have two follow-up questions:

1. So I assume that using "createThread' can solve my problem, right?

2. If so, is this link helpful or pointing at the correct direction about how to use "createThread"?
https://forum.fivem.net/t/multiple-citizen-createthread-function-in-one-lua/102684
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ParkourPenguin
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PostPosted: Tue Nov 20, 2018 4:48 pm    Post subject: Reply with quote
1. Yes; it'll stop the GUI from freezing.

2. I don't know what that is. Why not just search through CEF?

Maybe I can figure out how to not anger cloudfare.
Code:
if mytimer then mytimer.terminate(); mytimer = nil end

mytimer = createThread(function(thread)
  while not thread.Terminated do
    -- execute code here; don't forget to sleep
  end
end)

Edit: yup, apparently it doesn't like it when people call sleep.
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Dr.Disrespect
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PostPosted: Tue Nov 20, 2018 4:59 pm    Post subject: Reply with quote
ParkourPenguin wrote:
1. Yes; it'll stop the GUI from freezing.

2. I don't know what that is. Why not just search through CEF?

Maybe I can figure out how to not anger cloudfare.
Code:
if mytimer then mytimer.terminate(); mytimer = nil end

mytimer = createThread(function(thread)
  while not thread.Terminated do
    -- execute code here; don't forget to sleep
  end
end)

Edit: yup, apparently it doesn't like it when people call sleep.


Thanks again. So does the follow code makes sense?
Code:

if mytimer then mytimer.terminate(); mytimer = nil end

mytimer = createThread(function(thread)
  while not thread.Terminated do
    if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
      FormClose()
    end
  end
end)


Don't know what sleep means, I will do some research.
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ParkourPenguin
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PostPosted: Tue Nov 20, 2018 5:13 pm    Post subject: Reply with quote
Calling sleep tells the OS that this thread doesn't need to do any work for a specified amount of time. Your code doesn't do that, so it'll always be running and wasting CPU time needlessly.

At the very end, just before the while loop terminates, call sleep and pass a value like 2000 (2 seconds).
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Dr.Disrespect
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PostPosted: Tue Nov 20, 2018 6:29 pm    Post subject: Reply with quote
ParkourPenguin wrote:
Calling sleep tells the OS that this thread doesn't need to do any work for a specified amount of time. Your code doesn't do that, so it'll always be running and wasting CPU time needlessly.

At the very end, just before the while loop terminates, call sleep and pass a value like 2000 (2 seconds).


So, should it look like this?
Code:

if mytimer then mytimer.terminate(); mytimer = nil end

mytimer = createThread(function(thread)
  while not thread.Terminated do
    if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
      sleep(2000)
      FormClose()
    end
  end
end)

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ParkourPenguin
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PostPosted: Tue Nov 20, 2018 6:47 pm    Post subject: Reply with quote
ParkourPenguin wrote:
At the very end, just before the while loop terminates...

Code:
while not thread.Terminated do
  if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
    FormClose()
  end
  sleep(2000)
end

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Dr.Disrespect
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PostPosted: Tue Nov 20, 2018 7:52 pm    Post subject: Reply with quote
ParkourPenguin wrote:
ParkourPenguin wrote:
At the very end, just before the while loop terminates...

Code:
while not thread.Terminated do
  if getProcessIDFromProcessName("xxx.exe") ~= nil or getProcessIDFromProcessName("aaa.exe") ~= nil then
    FormClose()
  end
  sleep(2000)
end


Oh, got it. Thanks for the help, ParkourPenguin. I will give you rep when I can, Very Happy
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daspamer
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PostPosted: Wed Nov 28, 2018 9:39 am    Post subject: Reply with quote
Hope this example will help, if I ever manage to post it.
thanks cloudflare Confused
Code:
print('start');
local stop,done,ts,sp = false,false,os.clock(),_G.sleep; -- variables
thread = createThreadSuspended(function (thread)
   while (true) do
      if (not done) then
         if (not (getProcessIDFromProcessName("xxx.exe") or getProcessIDFromProcessName("aaa.exe"))) then
            stop = true;
            break;
         end
         done = true;
      end
      sp(1); -- reduces execssive cpu usage and problems;
   end
end);
local i = 0; -- for counting and example only
timer = createTimer();
timer.interval = 100;
timer.onTimer = function (sender)
   if (os.clock() > ts + 2) then -- checks if 2 seconds passed as this function called 10 times
      thread.resume(); -- resumes our infinite loop
      ts = os.clock(); -- reset timestamp
   end
   if (stop) then -- its better to exit from main thread
      print('error game was not found - program should terminate');
      timer.destroy();
      -- return os.exit(); -- force app to exit
   end
   if (done) then -- our loop finished an action and can be put to sleep until the next action
      thread.suspend(); -- suspend our thread
      done = false; -- reset the flag only after suspend
      i = i + 1;
      print('action finished successfully', i, ' times');
   end
end

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