On Mon, Aug 1, 2011 at 10:07 AM, Gustavo Enrique Jimenez
gejime...@gmail.com wrote:
Hi:
I send cookies to the client. One of those cookies is a sessionID,
a random number generated at login.
My sequence is something like
Login
Client: username/password -Login html button
Server: run cgi
On Mon, Aug 1, 2011 at 10:43 AM, Felipe Monteiro de Carvalho
felipemonteiro.carva...@gmail.com wrote:
On Mon, Aug 1, 2011 at 5:23 PM, Andrew Brunner
andrew.t.brun...@gmail.com wrote:
I agree with this one. The only thing I could add would be AJAX
WebSockets for really advanced applications
On Mon, Aug 1, 2011 at 12:05 PM, Michael Van Canneyt
mich...@freepascal.org wrote:
..But it is not always supported by the browser (as Marco indicated)
and many firewalls simply don't agree with websockets.
Can firewalls detect websockets over port 80?
The only thing I can think of would be packet inspection. Firewalls
included with Linux and Windows do not perform deep packet
inspection. They only allow/deny packets with specific ports over
either TCP or UDP.
Am I missing something?
On Mon, Aug 1, 2011 at 12:31 PM, Michael Van Canneyt
I'm needing to figure out how best to close or seal units so that
I can use the compiled unit object files instead of the actual unit
files.
The problem is that the compiled unit files call a few units that the
project has the source to. And FPC is looking to recompile the
compiled object file
I'm needing to figure out how socket signaling mechanisms work under darwin.
Windows and Linux work, Darwin however does not support ePoll.
Anyone have any experience with Sockets events under OSX i386?
Thanks.
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Windows supports epoll?
No, windows doesn't offer polling socket mechanisms. They send
messages to windows with the socket number - it's event driven.
Kernel polling is different, but I assumed that Darwin would support
it via e-Poll. I searched and found a few references to
kQueue/kEvent.
I wanted to ask what the present state of unicode support is now.
I'm running into problems with some various strings. Sometimes when a
string contains a unicode character postgresql won't allow the
insert/update. Also, some MP3 tags contain UTF16, UTF16BE and I really
don't know of the best
I'm having a hard time with GDB and debugging threads on a OSX 10.7.4 with
fpc/trunk
The shipped gdb worked great with the exception of threads calling methods
via synchronize (so I can debug).
I'm in the process of building GDB from download and configure set gdb to
x64 darwin. Configure
What are you doing exactly, what happens, and what is the expected result
instead?
I'm upgrading my gdb from shipping version with darwin to gdb version from
download. I downloaded and ran /configure make make install 7.1. It
doesn't work with fpc. I'm going to have to switch back. The
On Sun, May 20, 2012 at 8:52 AM, Jonas Maebe jonas.ma...@elis.ugent.be The
above was a question relating to ... with the exception of threads calling
methods via synchronize (so I can debug). I.e., what are the exact things
you are doing, what is happening, and what are the expected results
Hi there,
I'm seeking help to address an issue I presently have with a Server
application that uses TPostgres components.
Each manager thread has its own Connection, Transaction, and TQuery.
Each manager can handle potentially thousands of sockets
Each server instance (1 process) can have up to
for me when Connection is a postgresql connection.
Anyone have any experience with postgresql character sets / encoding???
I can't hard-code any one character set because users from 1 region will
have different encoding needs than another.
Any help, or comments is greatly needed.
--
Andrew
/Lazarus and building now...
--
Andrew Brunner
Aurawin LLC
512.574.6298
http://aurawin.com/
Aurawin is a great new place to store, share, and enjoy your
photos, videos, music and more.
___
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http
/view.php?id=22985
(I did only basic testing)
-Laco.
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http://lists.freepascal.org/mailman/listinfo/fpc-pascal
--
Andrew Brunner
Aurawin LLC
512.574.6298
http://aurawin.com/
Aurawin is a great
contributions of SVN client/server code in pascal?
Any help is greatly appreciated,
Andrew Brunner
Aurawin LLC
512.574.6298
A safe new way to store and share your files, pictures, videos, and more.
http://aurawin.com/
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look at Apache svn source (C++) to port to Aurawin's HTTP server.
But where is the Official svn documentation for implementing svn over
http?
--
Andrew Brunner
Aurawin LLC
512.574.6298
A safe new way to store and share your files, pictures, videos, and more.
http://aurawin.com
.
It looks like heavy XML. It will require use the fpc-xml. Are the DOM
components proven to be memory leak free at this point?
--
Andrew Brunner
Aurawin LLC
512.574.6298
A safe new way to store and share your files, pictures, videos, and more.
http://aurawin.com
system does
find the unit when I hot-click the unit.
I'm going to FPC/Laz build from svn/source but I just wanted to post
here to see what was the cause...
--
Andrew Brunner
Aurawin LLC
512.574.6298
http://aurawin.com/
Aurawin is a great new way to store, share, and enjoy your
photos, videos
to
update it simultaneously?
In the case that I'm thinking of, I don't anticipate e.g. multiple
logins trying to write setup information at the same time. The more
risky case is if there are e.g. multiple daemons or apps trying to
save state when a UPS signals imminent shutdown.
--
Andrew
On Feb 16, 2013, at 2:37 AM, Reinier Olislagers reinierolislag...@gmail.com
wrote:
Security problems with world-writable files? Yes, that problem applies
to *nix as well but Mark has given no indication his config files are
world-writable. (Even if the logins Mark speaks of run under
using the same methods. The speed is
killing my server's performance.
Does anyone have any idea how to speed up the underlining code?
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
Aurawin is a great new way to store, share, and explore all your content
On 02/24/2013 04:44 AM, Michael Van Canneyt wrote:
Try to get rid of the XML, it is always going to be slow.
Using XML can slow your applications with a factor 6.
If you are mime-encoding an image, it'll be even more.
I was just thinking about that. I think JSON would be ok, especially if
On 02/25/2013 04:51 AM, Graeme Geldenhuys wrote:
ImageMagick will probably be a good choice. Regards, - Graeme -
Ok, I'm going to start tests with that. Thanks
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;
blob:=MagickGetImageBlob(wand,@bSize);
Stream.Write(blob^,bSize);
Result:=true;
end;
end;
finally
DestroyMagickWand(wand);
end;
end;
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
Aurawin is a great new way to store
into a bracket it ought-not-be.
Jascal DOES look cool ;-)
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
Aurawin is a great new way to store, share, and explore all your content
featuring our innovative cloud social computing platform
on the code
contributor/creator.
But to 1.) above, wrongly kowning up to bad code contributions is my
largest genuine concern.
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
Aurawin is a great new way to store, share, and explore all your content
'; // Previous ImageMagick versions used
'libWand'
{$endif}
CORE_RL_magick_.dll
CORE_RL_wand_.dll'
Apon running the app, libMagickWand.dll was not found.
Can someone please look into this?
Thanks,
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
Aurawin
On 04/28/2013 02:49 PM, Andrew Brunner wrote:
I can't get ImageMagick unit to work under Windows XP 64.
Also, I have confirmed that ImageMagick installed and the application
does work.
Can someone please edit change the unit code for Windows instead of Win32?
The libraries are identical
.
But the solution must conform to FPC standards with regards to builds/packaging.
Thanks for any help in offering a 64bit download of FPC.
Andrew Brunner,
Aurawin LLC
512.574.6298
http://aurawin.com/
Aurawin is great new way to store and share your pictures, videos, and more,
featuring our innovative
http://bugs.freepascal.org/view.php?id=24346
Can someone please apply patch? Thanks.
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I agree with what you are saying as long as the os matches the binary type.
An x64 native package must install a x64bit binary and utils.
I would be understating if I said that a 32bit binary would be normal on a
64bit distro.
Andrew Brunner
Aurawin LLC
512.574.6298
A safe new way
Image Magick comes with static libraries and dynamic libraries.
Is there any way to make ImageMagick unit support the *.lib files?
I'm trying to avoid having to distribute the ImageMagick dlls.
Thanks,
--
Andrew Brunner
Aurawin LLC
15843 Garrison Circle
Austin, TX 78717
https://aurawin.com
of existing Delphi code. Components
must be complete for Linux, MAC, Windows.
Thanks,
Andrew Brunner
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I've got a situation where I'm wanting to concatenate a path from the
environment with a string to specify the path to the actual file to
include when building.
PATH_TO_DATA_INCLUDES = '/mnt/Source/Includes/Data/
{$i %PATH_TO_DATA_INCLUDES%+definitions.inc}
Is there any way to get FPC to join
I am very pleased with the core features of the DB components and more
specially the SQL components. Many thanks for your efforts.
Development of these components for Linux, MAC, and Windows will make
this platform more palatable.
After reviewing the code for the TParams and TParam components,
Michael,
If I extend the Param system to depend on the memory being allocated
by the caller of the SetData and that the memory will be there for the
duration of the SQL operation then all we need to do is have a pointer
to the memory, the size of the memory, and the kind of memory. With
these
Hi there,
I have a ByteArray unit that's pretty extensive.
function toString(Var Item:TByteArray):string
var
iLen:Integer;
begin
iLen:=System.Length(Item);
SetLength(Result,iLen);
if iLen0 then
System.Move(Item[0],Result[1],iLen);
end;
On Sun, Aug 16, 2009 at 12:35 PM, Wimpie
Sockets programming often requires a poll for how much data is
available on a particular socket descriptor.
I'm porting an inhouse library for a sockets implementation and I
realize that while I have a FpIOCtl call in the baseUnix unit I have
no such animal in the Sockets implement which would be
Move(p, tocarray[0], SizeOf(tocarray));
This causes an Access Violation at runtime.
This should not cause as RAV. You must call
SetLength(toarray,SizeOfMemory) and also don't use SizeOf(tocarray)
use Length(tocarray)*SizeOf(What ever the element is))
Hi there,
I've got a unit I'm porting from Windows to Linux and I came across a
QueueUserAPC (Kernel32 Windows) I make to add a callback method that
gets executed by the thread I added this to.
function QueueUserAPC(Callback: Pointer; hThread: THandle;
dwData:DWORD): boolean; stdcall;
When the
but hey... my options are limited.
If anyone has a better solution for Linux/Unix/Mac- I'm all ears.
Thanks.
On Thu, Oct 8, 2009 at 12:34 PM, Andrew Brunner
andrew.t.brun...@gmail.com wrote:
Does Threading under Linux have anything like this? Have any of you
done anything like this under *nix
...)
Hope this helps... (or inspires you to think of something that will
work :)
~David.
On Thu 8 Oct 2009, Andrew Brunner wrote:
Hi there,
I've got a unit I'm porting from Windows to Linux and I came across a
QueueUserAPC (Kernel32 Windows) I make to add a callback method that
gets executed
In general I use pointers to data structures and especially when they
are arrays.
Take the following
PIntArray: ^TIntArray;
TIntArray:Array of Integer;
1st benefit:
declaring methods associated with classes before TIntArray needs to be
defined or declared.
eg. procedure DoSomething(Var
On Sun, Oct 11, 2009 at 5:25 PM, Vinzent Höfler
jellyfish.softw...@gmx.net wrote:
Andrew Brunner andrew.t.brun...@gmail.com:
1st benefit:
declaring methods associated with classes before TIntArray needs to be
defined or declared.
eg. procedure DoSomething(Var Data:TIntArray); vs
On Mon, Oct 12, 2009 at 12:43 PM, Marc Weustink m...@dommelstein.net wrote:
Graeme Geldenhuys wrote:
On 11/10/2009, Andrew Brunner andrew.t.brun...@gmail.com wrote:
FPC forces the ^ operator while accessing structures as pointers.
Delphi didn't force it and I even suspect that memory leaks
Hi there,
I just got a laptop that came with Windows Seven. I have complete
automation scripts with my Ubuntu boxes but NONE of the commands to
make FPC translate for me.
I poured over wikis and blogs for info and even found the official
(link below).
Yes. From any folder in command prompt I get fpc access. I just
don't know the make commands and parameters.
-Andy
On Sat, Nov 7, 2009 at 7:31 AM, Vincent Snijders
vsnijd...@vodafonevast.nl wrote:
Andrew Brunner schreef:
Hi there,
I just got a laptop that came with Windows Seven. I have
didn't
get the source copied using make install sourceinstall PREFIX=MyPrefix
On Sat, Nov 7, 2009 at 7:54 AM, Vincent Snijders
vsnijd...@vodafonevast.nl wrote:
Andrew Brunner schreef:
Yes. From any folder in command prompt I get fpc access. I just
don't know the make commands and parameters
C:\Developer\FPCmake install sourceinstall PREFIX=C:\FPC
make -C win32 exampleinstall
make[4]: Entering directory `C:/Developer/FPC/rtl/win32'
make[4]: Nothing to be done for `exampleinstall'.
make[4]: Leaving directory `C:/Developer/FPC/rtl/win32'
make[3]: Leaving directory
On Sat, Nov 7, 2009 at 12:21 PM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
You have to build/install an exported copy under Windows due to a bug in
cp.exe there. First perform
C:\Developer\FPC svn export . c:\Developer\FPCExport
Then build/install from c:\Developer\FPCExport
Well, if
David,
I don't see how you are not getting memory leaks by doing a move
before making sure that the destination buffer has the memory
allocated. You see, in Delphi and FPC, move d/n actually move the
memory... It just copies it.
You were warned :-)
On Sat, Apr 24, 2010 at 3:01 PM, David
Constants (values) or variable values (variables).
Let's not forget assignable constants that must be typed :-)
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obj1:=TMyObject.Create;
Try
obj2:=TMyObject.Create;
Try
Obj1.DoSomething1;
Obj2.DoSomething2;
Finally
FreeAndNil(Obj2);
end;
Finally
FreeAndNil(Obj1);
end;
Hum... I do not agree. Why not this? See..
obj1:=TMyObject.Create;
obj2:=TMyObject.Create;
Try
On Tue, Jul 6, 2010 at 10:31 AM, Marcos Douglas m...@delfire.net wrote:
Better:
obj1 := nil;
obj2 := nil;
Try
obj1 := TMyObject.Create;
obj2 := TMyObject.Create;
obj1.DoSomething1;
obj2.DoSomething2;
finally
obj1.Free;
obj2.Free;
end;
The objectcs are protected. But is
On Tue, Jul 6, 2010 at 11:39 AM, Marco van de Voort mar...@stack.nl wrote:
In our previous episode, Andrew Brunner said:
obj1 := nil;
obj2 := nil;
Try
?obj1 := TMyObject.Create;
?obj2 := TMyObject.Create;
?obj1.DoSomething1;
?obj2.DoSomething2;
finally
?obj1.Free;
?obj2.Free
On Tue, Jul 6, 2010 at 5:04 PM, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
I meant is as in it is safe to call MyObj.Free even if MyObj = nil. I
answered based on the explicit question.
But yes, in your example where MyObj was an instance, the code in the
destructor could still trip
On Tue, Jul 6, 2010 at 5:09 PM, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
Even with a try..except, if you call MyObj.Free and it causes an
exception, you are screwed either way and it will always cause a
memory leak. Best is no notify the user some how, or crash out of the
program, or
On Wed, Jul 7, 2010 at 2:09 AM, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
Op 2010-07-07 03:32, Martin het geskryf:
And in the 2nd case, mem leaks are no worry = the app is going to be
closed, mem will be freed by the OS.
[...snip...]
The whole memory management could be corrupted.
On Wed, Jul 7, 2010 at 8:05 AM, Martin f...@mfriebe.de wrote:
if obj1.free; crashes, then yes obj2 is not going to be released. But as
explained in this and my last mail: It should not be attempted to be
released.
Martin, I can't disagree more. I find it completely ludicrous that if
On Wed, Jul 7, 2010 at 8:37 AM, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
procedure TObj1.Free;
begin
Try
Disk1.Unmount;
Except
On E:Exception do begin
// Some case stuff here
end;
end;
Inherited Destroy;
end;
With the exception of a possible memory leak in
On Wed, Jul 7, 2010 at 8:34 AM, Martin f...@mfriebe.de wrote:
Had you only read to the end of my mail. You are deliberately ignoring
part of what I wrote and the blame me for the remainder being incomplete?
I clearly stated that there are cases where free can raise a valid
exception, and
Well... I think CGI gateway is a good way. If the real app (FCGI) have
troubles, I can change the URL that the CGI (gateway) uses to call the
real app and to point to another app (in other server, e.g.). What do
you think about it?
I think it would be worth discussing what can be done or at
On Wed, Oct 6, 2010 at 7:55 AM, Sven Barth pascaldra...@googlemail.com wrote:
You'll only find 127.0.0.1 for my computer there... I don't think that
this is a very good solution.
Oh well. That makes sense b/c these are servers that I have obtaining
the same IP over DHCP.
On clients when DHCP
procedure TBarThread.Execute;
begin
FFinished := False; // work-around variable
while not Terminated do
begin
Synchronize(@UpdateProgressBar);
end;
FFinished := True; // work-around variable
end;
What about dropping that loop and put it in UpdateProgressBar
This seems like a discussion of semantics more than anything. In an
application thread if you say WAITFOR something then the app cannot
process messages b/c the execution is put on hold until WAITFOR
returns. This is normal behaviour, IMO.
So if this is just an exercise, I really don't see a
poll the
Completes to see if they are all true.
There are a million ways to accomplish safe thread usage without waitfor...
On Fri, Oct 8, 2010 at 8:49 AM, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
On 8 October 2010 15:32, Andrew Brunner wrote:
This seems like a discussion of semantics more
problems in the past with this does not
mean I won't with a future. ;-)
On Fri, Oct 8, 2010 at 9:04 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
On 08 Oct 2010, at 15:57, Andrew Brunner wrote:
A better way of achieving this is looking at the collection of threads
you have. Set your own
On Fri, Oct 8, 2010 at 9:21 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
No, the main source of problems is that the cpu may reordering memory
operations resulting in those booleans in the arrays becoming true before
all memory locations written in the thread are visible. The result is that
On Fri, Oct 8, 2010 at 9:52 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
So are you referring to the topic of this conversation regarding data
flushing? The notion of creating an index of completions to poll and
waiting for all the values to turn true as a means to determine actual
job
I'm needing help to take my Lazarus app, elevate process to root
(using GUI prompt like GKSU) and I want to drop back down to the
user's level after port binding and listening.
Ubuntu has port restrictions for low port numbers. I'm developing a
platform that happens to use ports for HTTP, XMPP,
Right. But in the case of an array of booleans that will be polled
and an exit condition will only be met if all booleans are set to
true. The order in which a polling thread sees them as being true has
no bearing on the functionality.
On Fri, Oct 8, 2010 at 3:07 PM, Paulo Costa p...@fe.up.pt
On Fri, Oct 8, 2010 at 3:37 PM, Marco van de Voort mar...@stack.nl wrote:
No, but the last one might be set before the condition coupled to that last
one might be carried out. See Jonas' example.
The ONLY way that could happen is if the boolean happens to be set in
a worker thread's method that
, Oct 8, 2010 at 3:52 PM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
On 08 Oct 2010, at 22:45, Andrew Brunner wrote:
On Fri, Oct 8, 2010 at 3:37 PM, Marco van de Voort mar...@stack.nl wrote:
No, but the last one might be set before the condition coupled to that last
one might be carried out
On Sun, Oct 10, 2010 at 1:09 PM, Mark Morgan Lloyd
markmll.fpc-pas...@telemetry.co.uk wrote:
Could you suid it to root or to an appropriate group? I've not tried this
for a Pascal/Lazarus program and don't know what the precise rules are for
port usage (i.e. whether the user has to be root or
13.10.2010 00:51, schrieb Andrew Brunner:
This test case illustrates a FPC memory leak.
What makes you think so? Internally freed memory is not immediatly
released to the OS as well.
On windows I know there is a call to flush all virtual memory out. Is
there a wrapper in fpc for *nix and windows
On Tue, Oct 12, 2010 at 5:51 PM, Andrew Brunner
andrew.t.brun...@gmail.com wrote:
Another problem demonstrated with this application is the limiting
factor of thread creation. I'd like to make a complaint using this
code as well. Change the number of threads to 3000. The system gets
to about
On Wed, Oct 13, 2010 at 8:27 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
1) on entry of the critical section protected by this variable, you can
have problems, because this sequence:
locked:=true;
local:=shared_global_var;
may actually be executed in this order:
On Wed, Oct 13, 2010 at 8:28 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
Probably because it uses a heap manager per thread.
You may try to use 'cmem', which will replace the heap manager with the C
memory manager (one for the whole app, not per thread). That will allow you
to test
On Wed, Oct 13, 2010 at 2:12 PM, Michael Van Canneyt
mich...@freepascal.org wrote:
FPC doesn't have anything to say about CPU allocation. The threads are
created by the C pthread library and Linux kernel.
They do the heavy work.
Is it possible I have the pthread library in some sort of debug
I was reading on building FPC with debug enabled so I can trace into a
unit and found that it was way too difficult to find the parameters.
I know I had at one time edited the wiki page once I learned how to do
it but to my surprise that info was either lost/moved or too hard to
navigate and the
On Wed, Oct 13, 2010 at 3:24 PM, Michael Van Canneyt
mich...@freepascal.org wrote:
Is it possible I have the pthread library in some sort of debug mode
that is slowing down the process of thread creation?
I seriously doubt it.
What you could do to test, is write your program using direct
On Thu, Oct 14, 2010 at 4:29 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
Impressive. So the FPC implementation on top of this obviously does
something on top of this which causes it to slow down.
Possible culprits would then be the semaphores and TLS allocation.
I obtained the
Thanks, Jonas.
On Thu, Oct 14, 2010 at 6:43 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
On 14 Oct 2010, at 02:58, Andrew Brunner wrote:
I was reading on building FPC with debug enabled so I can trace into a
unit
make OPT=-O- DEBUG=1 all
Jonas
What are the exact differences from this test to your last one? Would be
nice to know that... :)
Every barrier causes a significant increase in time. In high
performance parallel computing time is something we minimize. Big
reductions in linear execution yield massive performance gains in the
On Fri, Oct 15, 2010 at 5:20 AM, Frank Church vfcli...@gmail.com wrote:
I am writing an app involving 2 threads, and a timer loop in the UI.
The first thread monitors network events, logs them into a database, appends
them to a list.
Any time I see append to a list I always think
On Fri, Oct 15, 2010 at 9:24 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
You replaced a bunch of semaphore create/lock/unlock/destroy operations with
calls to a function that does not do anything.
I did not. I REMOVED create/destroy/lock/unlock. I ADDED calls to
the ThreadManager's own
On Fri, Oct 15, 2010 at 9:24 AM, Michael Van Canneyt
mich...@freepascal.org wrote:
Thank you,
I'll study it to see if/how we can do something to increase speed of
creating threads
in FPC.
But if I understand you correctly, the WRITE_MEMORY_BARRIER() call is
beyond our reach, so there's
On Fri, Oct 15, 2010 at 9:55 AM, Sven Barth pascaldra...@googlemail.com wrote:
Am 15.10.2010 16:31, schrieb Andrew Brunner:
On Fri, Oct 15, 2010 at 9:24 AM, Jonas Maebejonas.ma...@elis.ugent.be
wrote:
You replaced a bunch of semaphore create/lock/unlock/destroy operations
with
calls
On Fri, Oct 15, 2010 at 10:06 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
First of all, if you use tthread.create(true) (i.e., create a suspended
thread), then the execute method will never be called:
BTW: I did notice that the semaphore was being used to suspend the
thread. And I also
On Fri, Oct 15, 2010 at 10:24 AM, Sven Barth
pascaldra...@googlemail.com wrote:
The problem isn't the pthreads library. The problem is the POSIX threading
specification of which pthreads is an implementation (look at the comment in
CSuspendThread again).
POSIX is just like you say a
On Fri, Oct 15, 2010 at 10:57 AM, Vinzent Höfler
jellyfish.softw...@gmx.net wrote:
If you access it inside the execute method, you more or
less crash (or at least leak memory).
You obviously had a problem with access ThreadID before it was assigned.
Accessing it should not arrive at a RAV.
On Fri, Oct 15, 2010 at 10:57 AM, Vinzent Höfler
jellyfish.softw...@gmx.net wrote:
Huh? Why should the pthreads library have a semaphore or similar on each
thread?
Good question. And according to pThreads source comments they
themselves did unwillingly.
On Fri, Oct 15, 2010 at 11:03 AM, jellyfish.softw...@gmx.net wrote:
On Fri, 15 Oct 2010 17:24:03 +0200, Sven Barth
pascaldra...@googlemail.com wrote:
The problem isn't the pthreads library. The problem is the POSIX threading
specification of which pthreads is an implementation (look at the
On Fri, Oct 15, 2010 at 12:01 PM, Vinzent Höfler
jellyfish.softw...@gmx.net wrote:
Exactly. It was poor implementation. You should have had a global
barrier onExecute. That would unlock the thread after everything you
needed was readable.
If it's global, it would unlock *any* thread at
I wanted to start a discussion based on current state of FPC and High
Performance Computing (HPC).
The premise of the thread is to discuss high scale threads. Currently
FPC has matured to the point where it might be beneficial to start
targeting a particular market for users. The first thing
:
On 15 October 2010 21:24, Andrew Brunner andrew.t.brun...@gmail.com wrote:
Suggested Reading:
http://ftp.gnu.org/gnu/glibc/glibc-linuxthreads-2.3.6.tar.gz
Why would you want to look at this? It's not used any more (except
for really old kernels).
Henry
On Sat, Oct 16, 2010 at 7:04 AM, Jonas Maebe jonas.ma...@elis.ugent.be wrote:
He cannot. If freeonterminate=true, then even if you call inherited
create(false) as the very last statement of your constructor, the thread
may already have finished running and freed itself before AfterConstruction
On Fri, Oct 15, 2010 at 5:10 PM, Henry Vermaak henry.verm...@gmail.com wrote:
I've told you before: NPTL is part of the glibc sources. Download the
latest glibc sources and look in the nptl directory. The latest glibc
release is 2.11.2.
FPC source to cThreads unit and the thread manager
On Sat, Oct 16, 2010 at 2:16 PM, Henry Vermaak henry.verm...@gmail.com wrote:
libpthread.so is the name of the library, not the name of the implementation.
I updated FPC from SVN and it is pointing to this library now :-).
Only problem is someone took some changes I made to remove semaphore
on
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