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== Python, GE & Threads == 

Martin Sell (thanks!) reported that threading via scripts was not working in the game engine with Blender 2.46 and later. My fault, to make pynodes work properly with threads > 1 I disabled Python's "check interval", preventing threads created via scripts from receiving time to run.

Now only during rendering check interval is disabled (set to max int). Still experimental, I added the calls in BPY_do_all_scripts, since it's called in BIF_do_render, but will probably move the code to its own function after more testing & feedback.
This commit is contained in:
Willian Padovani Germano 2008-07-02 21:01:59 +00:00
parent 8ca128414d
commit 424141f44d
1 changed files with 15 additions and 10 deletions
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25
source/blender/python/BPY_interface.c
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@ -229,13 +229,6 @@ void BPY_start_python( int argc, char **argv )
/* Initialize thread support (also acquires lock) */
PyEval_InitThreads();
/* Don't allow the Python Interpreter to release the GIL on
* its own, to guarantee PyNodes work properly. For Blender this
* is currently the best default behavior.
* The following code in C is equivalent in Python to:
* "import sys; sys.setcheckinterval(sys.maxint)" */
_Py_CheckInterval = PyInt_GetMax();
//Overrides __import__
init_ourImport( );
init_ourReload( );
@ -2188,6 +2181,18 @@ void BPY_do_all_scripts( short event )
BPY_do_pyscript( &( G.scene->id ), event );
/* Don't allow the Python Interpreter to release the GIL on
* its own, to guarantee PyNodes work properly. For Blender this
* is currently the best default behavior.
* The following code in C is equivalent in Python to:
* "import sys; sys.setcheckinterval(sys.maxint)" */
if (event == SCRIPT_RENDER) {
_Py_CheckInterval = PyInt_GetMax();
}
else if (event == SCRIPT_POSTRENDER) {
_Py_CheckInterval = 100; /* Python default */
}
return;
}
@ -2270,9 +2275,9 @@ void BPY_do_pyscript( ID * id, short event )
return;
}
/* tell we're running a scriptlink. The sum also tells if this script
* is running nested inside another. Blender.Load needs this info to
* avoid trouble with invalid slink pointers. */
/* tell we're running a scriptlink. The sum also tells if this
* script is running nested inside another. Blender.Load needs
* this info to avoid trouble with invalid slink pointers. */
during_slink++;
disable_where_scriptlink( (short)during_slink );