Markus, In latest versions, if you use D6 or better STREAM64 is defined by default. Unless you transfered data volumes beyond 2^63-1 bytes there won't be a problem ;-) Property ReadCount is reset to zero before each transfer, so that has nothing to do with 7x24 apps.
--- Arno Garrels [TeamICS] http://www.overbyte.be/eng/overbyte/teamics.html Markus Humm wrote: > Hello, > > while searching a serious problem in one of my apps I decided to run > the affected part from the IDE. It contains two TCP Servers built with > TWSocket (ICS V5.20, D2006). > > As I checked it this morning the debugger told me there is some > integer overflow and when I looked at the line causing it it was line > 3728 in WSocket.pas where FReadCount gets incremented with the number > of bytes read. > > Above that very line is some statement that the thing might overflow > and that either overflow-checking should be used or Int64 instead of > longint. (better both as int64 can overflow as well and I'm doing 7x24 > stuff) > > I've checked where it was used and then decided to comment the line > out and rerun my app. But it stll makes me wonder: > > - why hasn't there anything beend done if the developpers are aware > that there is a problem? > - Did nobody so far encounter this? No one writing 7x24 apps with ICS? > - Are there any other bombs of that type? > - Any fix for this planned or even in the current version? (how does > the current V5, yes I can't switch right now! differ from 5.20?) > > The app. also uses a DLL which has a TWSocket. The DLL has its own > thread for the TWSocket because it is loaded dynamically and should > handle its messages on its own. Will this a problem there? because I > haven't recompiled it yet. What will happen? Will this depend on > whether it was compiled with R+ or not? > > The other side of these two TCP connections is a simple test program > which hasn't been recompiled either. Will it crash when it encounters > this bug? Or will it simply overflow? I assume it depends on $R+/- > here as well? > > Greetings > > Markus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
