I am not. As I explained, I was messing around with the Kylix
implementation of SyncObjs
I don't know if this is currently a problem for FPC. At least version
2.0.4 had the issue (under linux).
If it still is, let me know.
I will see if I can post it on the unofficial CLX patches
Peter
On Fri, 20 Jun 2008 20:17:26 -0500, Boian Mitov <[EMAIL PROTECTED]> wrote:
Hi Peter,
I thought you ware part of the FreePascal team. If you don't have access
to FTP, please let me know, and I will set account for you on one of my
servers. I also believe the fix is important and should find its way to
the Project at some point.
Thank you for your efforts!
With best regards,
Boian Mitov
--------------------------------------------------------------------
Mitov Software
http://www.mitov.com
--------------------------------------------------------------------
----- Original Message ----- From: "Peter Popov" <[EMAIL PROTECTED]>
To: "FPC developers' list" <fpc-devel@lists.freepascal.org>
Sent: Friday, June 20, 2008 6:10 PM
Subject: Re: [fpc-devel] semaphores and mutes
Where do you want me to post it?
Peter
On Fri, 20 Jun 2008 17:37:58 -0500, Boian Mitov <[EMAIL PROTECTED]> wrote:
Hi Peter,
Thank you!
I am already working to implement the Semaphores, and Mutexes.
I need timeout. Can you please post the patch? This is actually very
important issue, as the libraries use threads extensively, and share
huge number of resources. The timeouts are needed to resolve deadlocks.
With best regards,
Boian Mitov
--------------------------------------------------------------------
Mitov Software
http://www.mitov.com
--------------------------------------------------------------------
----- Original Message ----- From: "Peter Popov" <[EMAIL PROTECTED]>
To: "FPC developers' list" <fpc-devel@lists.freepascal.org>
Sent: Friday, June 20, 2008 3:32 PM
Subject: Re: [fpc-devel] semaphores and mutes
Anyways, some time ago I debuged the issue and patched kylix's
SynObjs unit to cure that. Basically, the problem is, as expected,
glibc. Older version did not have sem_timedwait() implemented. Later
glibc included it, along with several new variants of the remaining
semaphore routines. So, based on what thread model is used
(LinuxThreads or NTPL) each semaphore routine is implemented several
times. The thing is a total mess. Anyways, if one explicitly
instructs the kylix linker which version of semaphore functions to
use (they have to be consistent) TEvent.WaitFor can be implemnted for
any timeout. If there is interest I can post the patch.
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| Peter Popov, |
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| Institute for Scientific Computation, |
| Texas A&M University |
| College Station, Texas 77843-3404 |
|-----------------------------------------------|
| Phone: +1 (979) 458-4644, |
| Fax: +1 (979) 845-5827 |
| |
|***********************************************|
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