* Re: Asynchronous cancel
[not found] <199908101804.EAA24054@ise.canberra.edu.au>
@ 1999-08-12 4:34 ` Ross Johnson
2000-07-12 14:04 ` minor bug fix for WinCE in dll.c Tristan Savatier
0 siblings, 1 reply; 2+ messages in thread
From: Ross Johnson @ 1999-08-12 4:34 UTC (permalink / raw)
To: Rajiv K Shukla; +Cc: pthreads-win32
On Tue, 10 Aug 1999, Rajiv K Shukla wrote:
> Hello All,
>
> Sorry if the question has been asked before. We're trying to see if we
> could use the pthreads-win32 package to port our code to NT. It's been
> fine so far but we have hit a snag. It seems that
> pthread_setcanceltype doesn't really do anything. It sets an integer
> variable cancelType (which is part of the pthread_t structure) but the
> flag is used no where. Looks like the only way to cancel a thread is
> to call pthread_cancel and within the cancelled thread call
> pthread_testcancel. But we'd like to be able to cancel a thread
> asynchronously, e.g one of our thread sleeps for a configurable amount
> of time and it could be set pretty high, 1 hour, or 10 hours, or
> whatever. If within the thread I need to call pthread_testcancel in
> order to be cancelled then it's a problem. We'd have to wait that much
> time before we're even able to call pthread_testcancel.
>
> I'd appreciate any suggestion that you may have.
>
At present there is no way in general to asynchronously cancel a
thread. The best device on offer in the package is the
pthreadCancelableWait() and pthreadCancelableTimedWait() functions
(both non-POSIX and non-portable). See the code and comments in
misc.c. They respond to pthread_cancel().
Cheers.
Ross
+----------------------+---+
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^ permalink raw reply [flat|nested] 2+ messages in thread
* minor bug fix for WinCE in dll.c
1999-08-12 4:34 ` Asynchronous cancel Ross Johnson
@ 2000-07-12 14:04 ` Tristan Savatier
0 siblings, 0 replies; 2+ messages in thread
From: Tristan Savatier @ 2000-07-12 14:04 UTC (permalink / raw)
To: pthreads-win32
Here is a minor bug that I had to fix in order for
pthread-win32 to work on WinCE. It has to do with
the fact that WinCE uses UNICODE (16-bit chars).
It would not hurt to include this fix the the main tree...
In dll.c:
Replace:
GetProcAddress(_pthread_h_kernel32,
(LPCSTR) "TryEnterCriticalSection");
by
GetProcAddress(_pthread_h_kernel32,
(const TCHAR *)TEXT("TryEnterCriticalSection"));
-t
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1999-08-12 4:34 ` Asynchronous cancel Ross Johnson
2000-07-12 14:04 ` minor bug fix for WinCE in dll.c Tristan Savatier
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