CreateHTTPConnection increasing ID bug

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janbo

16

Years of Service

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Joined: 10th Nov 2008

Location: Germany

Posted: 5th Feb 2015 13:10 Edited at: 5th Feb 2015 15:12

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I found that ID=CreateHTTPConnection() increases the ConnectionID like all other creating functions do.
BUT DeleteHTTPConnection(ID) does not free the ID like the other functions, the ID will increase whatever I do.

It could run out of the integer range if you make HTTPConnections frequently
think of dedicated game servers, wich register the ip on a master server via http<-im working on that

Example of the problem:

+ Code Snippet

http = CreateHTTPConnection()
SetHTTPHost( http, "www.thegamecreators.com", 0 )

SendHTTPRequestASync( http, "agktest/itworks.html" )
while GetHTTPResponseReady(http) = 0
    Print( "Connecting..." )
    Sync()
endwhile

response$ = GetHTTPResponse(http)

CloseHTTPConnection(http)
DeleteHTTPConnection(http)

message("Http ID: "+str(http))

http = CreateHTTPConnection()
SetHTTPHost( http, "www.thegamecreators.com", 0 )

SendHTTPRequestASync( http, "agktest/itworks.html" )
while GetHTTPResponseReady(http) = 0
    Print( "Connecting..." )
    Sync()
endwhile

response$ = GetHTTPResponse(http)

CloseHTTPConnection(http)
DeleteHTTPConnection(http) //it should begin at 1001 again right?

message("Http ID: "+str(http))

// main loop
do
    Print( "Server response: " + response$ )
    Sync()
loop

Using AppGameKit V2 Tier1

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BatVink

Moderator

21

Years of Service

User Offline

Joined: 4th Apr 2003

Location: Gods own County, UK

Posted: 5th Feb 2015 14:30 Edited at: 5th Feb 2015 14:36

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I think the ID is being put to the bottom of the stack of available IDs. It will use it again when it runs out.

It's the same with all IDs, such as sprites:

+ Code Snippet

// Project: IDs 
// Created: 2015-02-05

// set window properties
SetWindowTitle( "IDs" )
SetWindowSize( 1024, 768, 0 )

// set display properties
SetVirtualResolution( 1024, 768 )

SetSyncRate(2,0)

do
    
	id = createSprite(0)
    Print( str(id) )
    Sync()
    deleteSprite(id)
    
loop

[EDIT] It would take 136 years to run out of IDs and loop back to the beginning at the rate of 1 connection per second.

Quidquid latine dictum sit, altum sonatur

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janbo

16

Years of Service

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Joined: 10th Nov 2008

Location: Germany

Posted: 5th Feb 2015 15:10

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I tested it with sprites now, and you are right it's the same

Somehow, I was sure it would return at 1001 after deleting it.
(maybe it was the FindFreeSprite() Funtion from the DBpro days)

I screwed it up then...

thanks

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Paul Johnston

TGC Developer

22

Years of Service

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Joined: 16th Nov 2002

Location: United Kingdom

Posted: 5th Feb 2015 17:12

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If it does somehow manage to get to the end of the integer range it will loop back round to ID 1. It always looks for a free ID so if you haven't deleted some it will skip over IDs that are in use.

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