How do you pass a type into a thread?

BlitzMax Forums/BlitzMax Beginners Area/How do you pass a type into a thread?

Chroma

(Posted 2009) [#1]

I'm starting a thread but I can't figure out how to actually pass or retrieve information from it. If I add an extra var to the Function I get an error. Anyone shed some light on how to pass a type into a Thread Function?

xcessive

(Posted 2009) [#2]

You should post your code.

grable

(Posted 2009) [#3]

Thats what the CreateThread() data parameter is for ;)

It goes something like this:

Local userdata:String[] = [ "my", "user", "data" ]
Local thread:TThread = CreateThread( Byte Ptr threadFunc, userdata)
Delay 1000
WriteStdout "after-thread="
For Local s:String = EachIn userdata
	WriteStdout s + " "
Next
WriteStdout "~n"

Function threadFunc:Object( userdata:String[])
	WriteStdout "inside-thread="
	For Local s:String = EachIn userdata
		WriteStdout s + " "
	Next
	WriteStdout "~n"
	userdata[1] = "altered"
EndFunction

Or just use Object and cast it yourself...

Chroma

(Posted 2009) [#4]

That's funny because that's what I thought too. I pretty much did what you did but with a type and it was throwing errors like heck. I'll do some more testing. But basically what I'm after is getting it to where I have a pool of threads and I assign tasks to them. And when they are done they clean up and go back into the pool for reuse.

I'll do more testing when I get home in about 14 hours :(. The military does have it's drawbacks. Massively long hours at work. Thanks for the help.