Re: [Quickfix-developers] QuickFIX Python and Twisted

[Rich H. <rh...@ql...>]

You also need to check if you are running on the main thread (the one that
imported your module) before changing the thread state.  I just check 
the current
thread id (can be done on linux and windows).  I've wrapped this in a 
helper
class... like the Locker class.  If anyone is interested, I can send it 
along.

Cheers,
Rich


Oren Miller wrote:
> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/html/index.html
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> We should be able to use Py_BLOCK_THREADS and Py_UNBLOCK_THREADS.   
> The _save variable will need to be global and protected.
>
> --oren
>
> On Nov 15, 2006, at 5:15 PM, Robert Parrott wrote:
>
>   
>> BTW, looking at these macro definitions, it isn't as easy as inserting
>> the macros directly, since there are defined to be used in pairs,
>> before and after. Instead, for the callbacks there will need to be
>> either explicit code or new macros:
>>
>> (from ceval.h of python 2.3 )
>>
>> PyAPI_FUNC(void) PyEval_InitThreads(void);
>> PyAPI_FUNC(void) PyEval_AcquireLock(void);
>> PyAPI_FUNC(void) PyEval_ReleaseLock(void);
>> PyAPI_FUNC(void) PyEval_AcquireThread(PyThreadState *tstate);
>> PyAPI_FUNC(void) PyEval_ReleaseThread(PyThreadState *tstate);
>> PyAPI_FUNC(void) PyEval_ReInitThreads(void);
>>
>> #define Py_BEGIN_ALLOW_THREADS { \
>> 			PyThreadState *_save; \
>> 			_save = PyEval_SaveThread();
>> #define Py_BLOCK_THREADS	PyEval_RestoreThread(_save);
>> #define Py_UNBLOCK_THREADS	_save = PyEval_SaveThread();
>> #define Py_END_ALLOW_THREADS	PyEval_RestoreThread(_save); \
>> 		 }
>>     
>
>
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