Re: [fpc-pascal]Program is busy
If you're doing anything time-consumig (like reading data from internet socket) and you want your program to respond to user actions (to Windows / XWindows / any-other-event-driven-environment events), to repaint its windows etc. you have to merge event loop with your data-reading code. Something like that: procedure Read_Data_And_Process_Some_Events; begin while (not end of data stream) do begin read some data process some events end; end; If you're reading from a file, "read some data" can be something like "read next 1000 bytes from a stream". BUT if you're reading from an internet socket you don't know how long it will take to get "next 1000 bytes" so you should rather limit your reading code by time. Something like time:=Now; while (Now-time < 5 seconds) do begin peek if there are some data in a stream, if there are - read them end; However, that kind of loop is called busy-waiting because if the stream has no more data yet, your program will use a lot of processor time just for peeking. It can be solved by doing Sleep() after every unsuccesful peek (that's an easy but poor solution) or by doing time-limited waiting for data using OS functions, like select() on sockets (and that's a corect solution). "process some events" under WinAPI should be something like if PeekMessage(msg, 0, 0, 0, PM_REMOVE) then begin if msg.message=WM_QUIT then break; TranslateMessage(msg); DispatchMessage(msg); end; If you want only to repaint your windows you can ignore all events except WM_PAINT. In general, you should disable some menus/buttons etc. before calling Read_Data_And_Process_Some_Events. This should make things easier, and it will prevent Read_Data_And_Process_Some_Events from being invoked recursively. Hope this helps, Michalis Kamburelis -- [EMAIL PROTECTED] http://www.camelot.homedns.org/~michalis/ (in Polish) ___ fpc-pascal maillist - [EMAIL PROTECTED] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal]Problem linking TESTIB.PP
On Fri, 18 Jul 2003, Eduardo Lopez wrote:
> Hello all:
>
> I'm trying to compile te TESTIB.PP and I get the following error:
>
> Linking testib.exe
> c:\pp\bin\win32\ldw.exe: cannot find -ldl
> testib.pp(89,1) Error: Error while linking
> Closing script ppas.bat
Remove the {$linklib dl} from the source code, or put it between
{$ifndef win32}
{$endif}
it is only needed on Linux.
Michael.
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Re: [fpc-pascal]Problem linking TESTIB.PP
> On Fri, 18 Jul 2003, Eduardo Lopez wrote:
>
> > Hello all:
> >
> > I'm trying to compile te TESTIB.PP and I get the following error:
> >
> > Linking testib.exe
> > c:\pp\bin\win32\ldw.exe: cannot find -ldl
> > testib.pp(89,1) Error: Error while linking
> > Closing script ppas.bat
>
> Remove the {$linklib dl} from the source code, or put it between
> {$ifndef win32}
>
> {$endif}
> it is only needed on Linux.
If it will be fixed in CVS:
It's not needed in *BSD either, so please make it really Linux only.
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Re: [fpc-pascal]Problem linking TESTIB.PP
On Sat, 19 Jul 2003, Marco van de Voort wrote:
> > On Fri, 18 Jul 2003, Eduardo Lopez wrote:
> >
> > > Hello all:
> > >
> > > I'm trying to compile te TESTIB.PP and I get the following error:
> > >
> > > Linking testib.exe
> > > c:\pp\bin\win32\ldw.exe: cannot find -ldl
> > > testib.pp(89,1) Error: Error while linking
> > > Closing script ppas.bat
> >
> > Remove the {$linklib dl} from the source code, or put it between
> > {$ifndef win32}
> >
> > {$endif}
> > it is only needed on Linux.
>
> If it will be fixed in CVS:
>
> It's not needed in *BSD either, so please make it really Linux only.
Done.
Michael.
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[fpc-pascal]Using FPC
Hi everyone, I'm a student of Data Processing college and in its labs i always wrote code using Turbo Pascal. For self development as a programmer, i started to search some way to study pascal at home, and found FPC. But i couldn't use it as i expected. I've downloaded the w321010full file, and installed it as explained, but the compiling test failed. I've set the variable as recommended to... I ask you to please help me and give me hints about how to use FPC. Do i have to write code in a simple text editor and compile it in DOS mode?? My OS is Windows ME. Thank you, Israel Simas --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.493 / Virus Database: 292 - Release Date: 25/6/2003 ___ fpc-pascal maillist - [EMAIL PROTECTED] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
