Mail Archives: cygwin/2005/06/02/14:22:40
Here is a patch to thread.cc that allows _lock to process signals. The
patch is against the 1.178 version of thread.cc found in cvs.
--- thread.cc.orig Thu Jun 2 11:17:39 2005
+++ thread.cc Thu Jun 2 11:20:00 2005
@@ -1543,8 +1543,24 @@
}
else
{
- WaitForSingleObject (win32_obj_id, INFINITE);
- set_owner (self);
+ //WaitForSingleObject (win32_obj_id, INFINITE);
+ //set_owner (self);
+ bool loop = true;
+ do
+ switch (pthread::cancelable_wait (win32_obj_id, INFINITE,
false, true))
+ {
+ case WAIT_OBJECT_0:
+ set_owner (self);
+ loop=false;
+ break;
+ case WAIT_SIGNALED:
+ _my_tls.call_signal_handler ();
+ break;
+ default:
+ // should never happen
+ return EINVAL;
+ }
+ while (loop);
}
return result;
On Jun 1, 2005, at 6:17 PM, Peter Rehley wrote:
> Here is the patch to pthread.h
>
> hummingbird:~/MontaVista/tmp prehley$ diff -u pthread.h.cygwin
> pthread.h.new
> --- pthread.h.cygwin Wed Jun 1 18:15:40 2005
> +++ pthread.h.new Wed Jun 1 18:06:49 2005
> @@ -53,12 +53,12 @@
> #define PTHREAD_MUTEX_RECURSIVE 0
> #define PTHREAD_MUTEX_ERRORCHECK 1
> #define PTHREAD_MUTEX_NORMAL 2
> -#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK
> +#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_NORMAL
> /* this should be too low to ever be a valid address */
> #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP (pthread_mutex_t)18
> #define PTHREAD_NORMAL_MUTEX_INITIALIZER_NP (pthread_mutex_t)19
> #define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP (pthread_mutex_t)20
> -#define PTHREAD_MUTEX_INITIALIZER
> PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
> +#define PTHREAD_MUTEX_INITIALIZER PTHREAD_NORMAL_MUTEX_INITIALIZER_NP
> #define PTHREAD_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, 0 }
> #define PTHREAD_PRIO_INHERIT
> #define PTHREAD_PRIO_NONE
> @@ -202,4 +202,3 @@
> #endif
>
> #endif /* _PTHREAD_H */
> -
>
> On Jun 1, 2005, at 5:22 PM, Peter Rehley wrote:
>
>>
>>
>> On May 31, 2005, at 10:50 AM, David Rothenberger wrote:
>>
>>> On 5/31/2005 10:15 AM, Peter Rehley wrote:
>>>> Well, here is a simple test case, but turns out I wasn't using the
>>>> latest version. I was having the problem on 1.5.12, I haven't
>>>> been able to get a good build with cygwin 1.5.17-1. It builds and
>>>> I can run the install script, but when I put the dll in place I see
>>>> the message "cygheap magic number mismatch detected", and gcc
>>>> doesn't want to work.
>>>
>>> I had a similar problem (see
>>> <http://cygwin.com/ml/cygwin/2005-05/msg01251.html>). It turned out
>>> it was because I was using the latest release of binutils. Try
>>> rolling back to the previous release.
>>>
>> Ok, I rolled binutils to 20041229, rebuilt and copied the new dll.
>> It's having the same issue that I see in 1.5.12. When I debug the
>> program, I see that the signal is being sent, but it doesn't get
>> executed.
>>
>> I've looked at the cygwin code, and I have noticed that the sleep
>> (nanosleep) is calling pthread::cancelable_wait, and that will call
>> WaitForMultipleObjects. However, in pthread_mutex::_lock, it's only
>> using WaitForSingleObject. I'm wondering if something like
>> WaitForMultipleObjects should be added to the lock function so that
>> signals (SIGCHLD, in my case) can be handled.
>>
>> It's just a guess since I'm not an expert with this code.
>>
>> Enjoy,
>> Peter
>> -------------------------------
>> A Møøse once bit my sister
>>
>>
>> --
>> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
>> Problem reports: http://cygwin.com/problems.html
>> Documentation: http://cygwin.com/docs.html
>> FAQ: http://cygwin.com/faq/
>>
>>
>>
> Enjoy,
> Peter
> -------------------------------
> A Møøse once bit my sister
>
>
> --
> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
> Problem reports: http://cygwin.com/problems.html
> Documentation: http://cygwin.com/docs.html
> FAQ: http://cygwin.com/faq/
>
>
>
Enjoy,
Peter
-------------------------------
A Møøse once bit my sister
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
- Raw text -