TKOP-ML@finou.oulu.fi (Mikko Laanti) (09/08/90)
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I have made an interface for FTP Inc. TCP/IP, so that it will work in
Windows protected mode. While everything works fine in 286 (WIN /2)
I have not managed to get the program to work in 386 mode (WIN /3).
The functional description of this Client/Server:
- FTP's network is loaded in real mode
- Our protected mode Windows application program copies
needed data into real mode memory area
- network interrupt is called through DPMI (simulating real mode
interrupt
- when the interrupt returns, data needed is copied into
protected mode data segment
In 386 mode all goes fine until I try to send my first message
to server (network program solves addresses etc.). Is there
any special I/O restrictions in DPMI ?
Any ideas ?
Mikko Laanti
P.S. I applied same method to BTRIEVE (Novell Inc.) and it works
well in both 286 and 386 mode.