Re: [fpc-pascal] cross platform version of IsCharAlpha()
On Fri, Jan 23, 2009 at 7:26 PM, vmars vm...@rgv.rr.com wrote: 'JcfStringUtils.pas' very strange looking code. Please, what format is the file in? Uh? I am using Lazarus 0.9.26 under Linux. The file was opened like any other source file... Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] n-tier development with Free Pascal
On Sat, 24 Jan 2009, Graeme Geldenhuys wrote: I haven't dabbled into the DB components in FPC and Lazarus much. Does Free Pascal have a TClientDataset? Has anybody done any 3-tier development with Free Pascal? There is not. TBufDataset has 95% of all TClientDataset features, but lacks still the easy transport layer and delta application. (Joost, correct me if I'm wrong). The last time I did 3-tier development with Delphi 7 was some 5 years ago. I found this link which is a drop in replacement for the Delphi midas.dll. And the source code is available and for free. I have this code. There is a catch, because part of the code assumes units which are in the vglib sources, and those are not free. (but which I purchased, 6 years ago or so) Is this useful for Free Pascal? http://www.vglib.com/link-4.html It would allow you to create a TClientDataset clone. It will not help with TBufDataset. It won't be easy to use cross-platform, because it has - partly - COM structures in it. My plan - as time permits - is to let Joost finish the TBufDataset. Then I will look at WST to create a transport layer. I currently use WST as transport layer to transmit data between a client and server, and it works as a charm. Michael. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] n-tier development with Free Pascal
Op zaterdag 24-01-2009 om 12:47 uur [tijdzone +0100], schreef Michael Van Canneyt: On Sat, 24 Jan 2009, Graeme Geldenhuys wrote: I haven't dabbled into the DB components in FPC and Lazarus much. Does Free Pascal have a TClientDataset? Has anybody done any 3-tier development with Free Pascal? There is not. TBufDataset has 95% of all TClientDataset features, but lacks still the easy transport layer and delta application. (Joost, correct me if I'm wrong). Only thing that still has to be done is that you can use stream delta seperate from the dataset. Atm you can only stream them both at the same time. But that is almost trivial. Joost. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] n-tier development with Free Pascal
fpGui very cool ! ô¿ô V e r n WinXp sp2 , Delphi5, WebDwarf, Trellian WebPage, Lazarus-0.9.26-fpc-2.2.2-win32.exe, wxPython2.8-win32-unicode-2.8.9.1-py26.exe , Boa 0.6.1 http://www.flickr.com/photos/vmars956/ Wanted: Dwarf Hibiscus (Orange/Rasberry) - Original Message - From: Graeme Geldenhuys graemeg.li...@gmail.com To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Sent: Saturday, January 24, 2009 1:54 AM Subject: [fpc-pascal] n-tier development with Free Pascal I haven't dabbled into the DB components in FPC and Lazarus much. Does Free Pascal have a TClientDataset? Has anybody done any 3-tier development with Free Pascal? The last time I did 3-tier development with Delphi 7 was some 5 years ago. I found this link which is a drop in replacement for the Delphi midas.dll. And the source code is available and for free. Is this useful for Free Pascal? http://www.vglib.com/link-4.html Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] n-tier development with Free Pascal
On Sat, Jan 24, 2009 at 8:38 PM, vmars vm...@rgv.rr.com wrote: fpGui very cool ! Glad you like it. :-) Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] CPU affinity of TThread descendants
On Tue, 2009-01-20 at 21:20 +, David W Noon wrote: [snip] I have noticed one thing that might shed a little light on the topic: whenever I use a pipe for the output and I allow the pipe to stall with a full buffer, after execution is resumed the program sometimes restarts on the other CPU, but again all threads run on the same CPU. I have finally tracked down what is going on here, and the above was a significant hint. In years past, the SMP Linux kernel would dispatch threads to CPUs using a more-or-less round-robin basis: whenever a thread was preempted or yielded its timeslice, the kernel would try to use the next available CPU to dispatch the next true-ready thread. This had the nice effect of spreading the thermal stress across all CPUs fairly evenly. However, if the next true-ready thread happened to be in the same process as the preempted/yielding thread, the caches, TLBs, etc., would have to be flushed from the current CPU and then reloaded on the next CPU. With current (2.6) kernels, this approach has changed. The current CPU is reused, so that when the next true-ready thread happens to be in the same process, the caches, TLBs, etc., are already valid. Now, the thread routines in my test program all pivot on the one mutex semaphore and do very little work before blocking again, so only one of them can execute at any point in time. This has the effect of reducing the execution model to that of a uniprocessor system. I added some bogus CPU-intensive workload that ran outside of the mutex, so that this could be executed by more than one thread concurrently. The upshot was that I could get both CPUs at 100% busy. This also led me to the discovery of a similar concept tp CPU affinity, called thread scope. There are 2 APIs, called pthread_attr_setscope() and pthread_attr_getscope(), the first of which allows a thread to be created with a scope of PTHREAD_SCOPE_PROCESS or PTHREAD_SCOPE_SYSTEM. The behaviour I was seeing was akin to PTHREAD_SCOPE_PROCESS, which ties all threads of that scope within a process to dispatch on the same CPU. However, Linux does not implement this thread scope; it only implements PTHREAD_SCOPE_SYSTEM, which allows a thread to be dispatched on any CPU to which it has an affinity. -- Regards, Dave [RLU #314465] === david.w.n...@ntlworld.com (David W Noon) === ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] EFCreateError' Unable to create file
(Lazarus-0.9.26-fpc-2.2.2-win32.exe) winXP sp2
I am trying to SaveToFile a Memo1 to disk.
But can't seem to get it to work.
Is there a known bug?
Try
Memo1.Lines.SaveToFile(ExecuteName);
Except ShowMessage('Shoots, couldnt SaveToFile!');
end;
[Project raised exception class 'EFCreateError' with message:
Unable to create file
C:lazarusfpc2.2.2bini386-win32Del2PasDel2PasDel2Pas.bat]
I'm wondering 'How come ExecuteName got all the \s taken out?'.
'F7' shows that :
'ExecuteName' =
C:\lazarus\fpc\2.2.2\bin\i386-win32\Del2Pas\Del2Pas\Del2Pas.bat
ô¿ô
V e r n
WinXp sp2 , Delphi5, WebDwarf, Trellian WebPage,
Lazarus-0.9.26-fpc-2.2.2-win32.exe,
wxPython2.8-win32-unicode-2.8.9.1-py26.exe , Boa 0.6.1
http://www.flickr.com/photos/vmars956/
Wanted: Dwarf Hibiscus (Orange/Rasberry)
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