diff options
Diffstat (limited to 'Objects/classobject.c')
| -rw-r--r-- | Objects/classobject.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/Objects/classobject.c b/Objects/classobject.c index d9f721911e..be7ba2dbeb 100644 --- a/Objects/classobject.c +++ b/Objects/classobject.c @@ -5,6 +5,15 @@ #define TP_DESCR_GET(t) ((t)->tp_descr_get) +/* Free list for method objects to safe malloc/free overhead + * The im_self element is used to chain the elements. + */ +static PyMethodObject *free_list; +static int numfree = 0; +#ifndef PyMethod_MAXFREELIST +#define PyMethod_MAXFREELIST 256 +#endif + PyObject * PyMethod_Function(PyObject *im) { @@ -30,8 +39,6 @@ PyMethod_Self(PyObject *im) function. */ -static PyMethodObject *free_list; - PyObject * PyMethod_New(PyObject *func, PyObject *self) { @@ -48,6 +55,7 @@ PyMethod_New(PyObject *func, PyObject *self) if (im != NULL) { free_list = (PyMethodObject *)(im->im_self); PyObject_INIT(im, &PyMethod_Type); + numfree--; } else { im = PyObject_GC_New(PyMethodObject, &PyMethod_Type); @@ -165,8 +173,14 @@ method_dealloc(register PyMethodObject *im) PyObject_ClearWeakRefs((PyObject *)im); Py_DECREF(im->im_func); Py_XDECREF(im->im_self); - im->im_self = (PyObject *)free_list; - free_list = im; + if (numfree < PyMethod_MAXFREELIST) { + im->im_self = (PyObject *)free_list; + free_list = im; + numfree++; + } + else { + PyObject_GC_Del(im); + } } static PyObject * @@ -375,7 +389,9 @@ PyMethod_Fini(void) PyMethodObject *im = free_list; free_list = (PyMethodObject *)(im->im_self); PyObject_GC_Del(im); + numfree--; } + assert(numfree == 0); } /* ------------------------------------------------------------------------ |