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-- Bugfix #3186: Fix memory leaks caused by multiple calls to

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PyDict_SetItemString() with objects that were not properly decrefed
   afterwards.  Due to the number of places this was used, I added a
   wrapper EXPP_dict_set_item_str() to gen_utils.c to handle it.

   This started as a scriptlink bug, due to how many times scripts were
   being executed I think it just magnified how bad the memory leak in
   BPy was.  Animating the blend attached with this bug report would cause
   memory to grow by about 3MB for every 280 frames.  After the patch,
   memory did not appear to grow at all (or at least not noticably using
   Unix's ps and top utils).

   Since many of the PyDict_SetItemString() calls were in initialization
   modules I think my tests executed most of the changed code, but would
   appreciate script users really giving feedback.
This commit is contained in:
Ken Hughes
2005-11-30 08:18:06 +00:00
parent 00f4310970
commit b7a4a6c837
11 changed files with 60 additions and 47 deletions
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37
source/blender/python/BPY_interface.c
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@@ -223,7 +223,7 @@ void init_syspath( int first_time )
if( mod ) {
d = PyModule_GetDict( mod );
PyDict_SetItemString( d, "progname", path );
EXPP_dict_set_item_str( d, "progname", path );
Py_DECREF( mod );
} else
printf( "Warning: could not set Blender.sys.progname\n" );
@@ -302,7 +302,7 @@ void init_syspath( int first_time )
if( mod ) {
d = PyModule_GetDict( mod ); /* borrowed ref */
PyDict_SetItemString( d, "executable",
EXPP_dict_set_item_str( d, "executable",
Py_BuildValue( "s", bprogname ) );
Py_DECREF( mod );
}
@@ -545,7 +545,7 @@ int BPY_txt_do_python_Text( struct Text *text )
PyString_FromString( script->id.name + 2 ) );
Py_INCREF( Py_None );
PyConstant_Insert( info, "arg", Py_None );
PyDict_SetItemString( py_dict, "__script__",
EXPP_dict_set_item_str( py_dict, "__script__",
( PyObject * ) info );
}
@@ -787,7 +787,7 @@ int BPY_menu_do_python( short menutype, int event )
PyConstant_Insert( info, "name",
PyString_FromString( script->id.name + 2 ) );
PyConstant_Insert( info, "arg", pyarg );
PyDict_SetItemString( py_dict, "__script__",
EXPP_dict_set_item_str( py_dict, "__script__",
( PyObject * ) info );
}
@@ -1081,10 +1081,10 @@ void BPY_do_pyscript( ID * id, short event )
disable_where_scriptlink( (short)during_slink );
/* set globals in Blender module to identify scriptlink */
PyDict_SetItemString( g_blenderdict, "bylink", EXPP_incr_ret_True() );
PyDict_SetItemString( g_blenderdict, "link",
EXPP_dict_set_item_str( g_blenderdict, "bylink", EXPP_incr_ret_True() );
EXPP_dict_set_item_str( g_blenderdict, "link",
ID_asPyObject( id ) );
PyDict_SetItemString( g_blenderdict, "event",
EXPP_dict_set_item_str( g_blenderdict, "event",
PyString_FromString( event_to_name
( event ) ) );
@@ -1123,10 +1123,9 @@ void BPY_do_pyscript( ID * id, short event )
/* cleanup bylink flag and clear link so PyObject
* can be released
*/
PyDict_SetItemString( g_blenderdict, "bylink", EXPP_incr_ret_False() );
Py_INCREF( Py_None );
EXPP_dict_set_item_str( g_blenderdict, "bylink", EXPP_incr_ret_False() );
PyDict_SetItemString( g_blenderdict, "link", Py_None );
PyDict_SetItemString( g_blenderdict, "event",
EXPP_dict_set_item_str( g_blenderdict, "event",
PyString_FromString( "" ) );
}
}
@@ -1302,11 +1301,11 @@ int BPY_do_spacehandlers( ScrArea *sa, unsigned short event,
}
/* set globals in Blender module to identify space handler scriptlink */
PyDict_SetItemString(g_blenderdict, "bylink", EXPP_incr_ret_True());
EXPP_dict_set_item_str(g_blenderdict, "bylink", EXPP_incr_ret_True());
/* unlike normal scriptlinks, here Blender.link is int (space event type) */
PyDict_SetItemString(g_blenderdict, "link", PyInt_FromLong(space_event));
EXPP_dict_set_item_str(g_blenderdict, "link", PyInt_FromLong(space_event));
/* note: DRAW space_events set event to 0 */
PyDict_SetItemString(g_blenderdict, "event", PyInt_FromLong(event));
EXPP_dict_set_item_str(g_blenderdict, "event", PyInt_FromLong(event));
/* now run all assigned space handlers for this space and space_event */
for( index = 0; index < scriptlink->totscript; index++ ) {
@@ -1362,9 +1361,9 @@ int BPY_do_spacehandlers( ScrArea *sa, unsigned short event,
}
PyDict_SetItemString(g_blenderdict, "bylink", EXPP_incr_ret_False());
PyDict_SetItemString(g_blenderdict, "link", EXPP_incr_ret(Py_None));
PyDict_SetItemString(g_blenderdict, "event", PyString_FromString(""));
EXPP_dict_set_item_str(g_blenderdict, "bylink", EXPP_incr_ret_False());
PyDict_SetItemString(g_blenderdict, "link", Py_None );
EXPP_dict_set_item_str(g_blenderdict, "event", PyString_FromString(""));
}
/* retval:
@@ -1548,7 +1547,7 @@ PyObject *CreateGlobalDictionary( void )
PyObject *dict = PyDict_New( );
PyDict_SetItemString( dict, "__builtins__", PyEval_GetBuiltins( ) );
PyDict_SetItemString( dict, "__name__",
EXPP_dict_set_item_str( dict, "__name__",
PyString_FromString( "__main__" ) );
return dict;
@@ -1672,7 +1671,7 @@ void init_ourImport( void )
m = PyImport_AddModule( "__builtin__" );
d = PyModule_GetDict( m );
PyDict_SetItemString( d, "__import__", import );
EXPP_dict_set_item_str( d, "__import__", import );
}
/*
@@ -1772,5 +1771,5 @@ void init_ourReload( void )
m = PyImport_AddModule( "__builtin__" );
d = PyModule_GetDict( m );
PyDict_SetItemString( d, "reload", reload );
EXPP_dict_set_item_str( d, "reload", reload );
}