Babis Michael

I found the issue. It’s VerifyTransfer. When it’s enabled it throws randomly an Invalid Data error and Disconnects.

I disable atm and no more random disconnections.

Due my experiments replaced the Move with CopyMemory and it works although it copies the 2nd monitor instead of the 1st.

So the problem is when you have a 4k Monitor and a 2nd 1080p monitor and switch to DirectX.
Seems it grabs the wrong monitor for the buffer or the opposite.

Thank you

Found the problem it’s on the below line but i don’t know how to resolve the AV or Stack Overflow.
Maybe the map is still locked or something and can’t let it copy the bytes to DIB ?

function TkbmMWRemoteDesktopServer.GetScreenDXGI ….

…
ABmp.DrawData(map.pBits); //AV Here
….

Thank you

Found the issue! The leak occurs when you call kbmmwshutdown before you terminate you application.

procedure TForm25.FormClose(Sender: TObject; var Action: TCloseAction);
begin
kbmmwshutdown; //comment me to prevent leak
end;

Sending you via email because here the link thinks it is spam.

Kim,

Any news on this ?

Can you free this upon finalization or needed to do it manually ?

Oh! i found i had a “kbmMWSmartEvent” declaration in one of my units that caused this. So even if you don’t use the SmartEvent declaring the unit causes this. Removed and the leaks gone!

Hello!

Yes! Here’s the code:

procedure TFormMain.FormClose(Sender: TObject; var Action: TCloseAction);
begin
CommonServer.doServerTerminate;
kbmMWShutdown;
end;

I have the same issue without using TLS. 5.20 works ok!

Seems Transport Disconnection isn’t working reverting back to 5.20 solved the problem!

Maybe it’s related to the error i get in the client when i terminate the server: EkbmMWSocket ‘Cannot execute StopLoop in IO thread’

Kim,

OnClientWaitingResponse AAbort stopped working in 5.21!
After the server disconnects i get a TRANSPORT_PROCESSOR_EXCEPTION: Access violation at address 0195F414 in module ‘myapp.exe’. Read of address 00000000 and it doesn’t timeout. (Native Transport)

It seems the transport is trying to transfer data on a disconnected session.

Thank you

Well, it’s up to you but those native sockets kicks ass! 🙂

So having a basic command handler class would be nice to create a lot of Server/Client Protocols too (eg. IMAP/POP3 etc)

Hello,

Well it’s a server transport not client and i also i don’t understand how to download a file from a HTTPS source using this.

I would appreciate any example!

Thank you

I mean i change the transport portocol to HTTP but it doesn’t accept it! (or i shouldn’t ?)
IOW, all i want is to download a file from a HTTPS source to a stream using native transports!
eg. https://www.mysite.com/myfile.zip with TLS 1.2/1.3

Thanks

Well HTTP protocol not supported so i can’t download a file! 🙁

The issue exists with wifi connections too. Random few (2-4) disconnection per day.
Anything that i can debug ?

Thank you