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author | Robert Schuppenies <okkotonushi@googlemail.com> | 2008-06-01 16:16:17 (GMT) |
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committer | Robert Schuppenies <okkotonushi@googlemail.com> | 2008-06-01 16:16:17 (GMT) |
commit | 51df0647672bc758da6d58eecfe45da9dc5913df (patch) | |
tree | 3cb568af01a3310eda4e1647901cd5ac3df118fb /Objects | |
parent | 6495c8da8f945def4749192b0536c1678f208664 (diff) | |
download | cpython-51df0647672bc758da6d58eecfe45da9dc5913df.zip cpython-51df0647672bc758da6d58eecfe45da9dc5913df.tar.gz cpython-51df0647672bc758da6d58eecfe45da9dc5913df.tar.bz2 |
Issue #2898: Added sys.getsizeof() to retrieve size of objects in bytes.
Diffstat (limited to 'Objects')
-rw-r--r-- | Objects/bytesobject.c | 13 | ||||
-rw-r--r-- | Objects/dictobject.c | 15 | ||||
-rw-r--r-- | Objects/listobject.c | 12 | ||||
-rw-r--r-- | Objects/longobject.c | 13 | ||||
-rw-r--r-- | Objects/typeobject.c | 16 |
5 files changed, 69 insertions, 0 deletions
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c index 79c1e4f..0de24f8 100644 --- a/Objects/bytesobject.c +++ b/Objects/bytesobject.c @@ -3917,6 +3917,17 @@ string_splitlines(PyBytesObject *self, PyObject *args) return NULL; } +PyDoc_STRVAR(sizeof__doc__, +"S.__sizeof__() -> size of S in bytes"); + +static PyObject * +string_sizeof(PyBytesObject *v) +{ + Py_ssize_t res; + res = sizeof(PyBytesObject) + v->ob_size * v->ob_type->tp_itemsize; + return PyInt_FromSsize_t(res); +} + #undef SPLIT_APPEND #undef SPLIT_ADD #undef MAX_PREALLOC @@ -4024,6 +4035,8 @@ string_methods[] = { expandtabs__doc__}, {"splitlines", (PyCFunction)string_splitlines, METH_VARARGS, splitlines__doc__}, + {"__sizeof__", (PyCFunction)string_sizeof, METH_NOARGS, + sizeof__doc__}, {"__getnewargs__", (PyCFunction)string_getnewargs, METH_NOARGS}, {NULL, NULL} /* sentinel */ }; diff --git a/Objects/dictobject.c b/Objects/dictobject.c index cdf0dfa..d3a7cb9 100644 --- a/Objects/dictobject.c +++ b/Objects/dictobject.c @@ -2032,6 +2032,16 @@ dict_iteritems(PyDictObject *dict) return dictiter_new(dict, &PyDictIterItem_Type); } +static PyObject * +dict_sizeof(PyDictObject *mp) +{ + Py_ssize_t res; + + res = sizeof(PyDictObject) + sizeof(mp->ma_table); + if (mp->ma_table != mp->ma_smalltable) + res = res + (mp->ma_mask + 1) * sizeof(PyDictEntry); + return PyInt_FromSsize_t(res); +} PyDoc_STRVAR(has_key__doc__, "D.has_key(k) -> True if D has a key k, else False"); @@ -2041,6 +2051,9 @@ PyDoc_STRVAR(contains__doc__, PyDoc_STRVAR(getitem__doc__, "x.__getitem__(y) <==> x[y]"); +PyDoc_STRVAR(sizeof__doc__, +"D.__sizeof__() -> size of D in bytes"); + PyDoc_STRVAR(get__doc__, "D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None."); @@ -2092,6 +2105,8 @@ static PyMethodDef mapp_methods[] = { contains__doc__}, {"__getitem__", (PyCFunction)dict_subscript, METH_O | METH_COEXIST, getitem__doc__}, + {"__sizeof__", (PyCFunction)dict_sizeof, METH_NOARGS, + sizeof__doc__}, {"has_key", (PyCFunction)dict_has_key, METH_O, has_key__doc__}, {"get", (PyCFunction)dict_get, METH_VARARGS, diff --git a/Objects/listobject.c b/Objects/listobject.c index 9d742d8..0216a85 100644 --- a/Objects/listobject.c +++ b/Objects/listobject.c @@ -2420,6 +2420,15 @@ list_init(PyListObject *self, PyObject *args, PyObject *kw) return 0; } +static PyObject * +list_sizeof(PyListObject *self) +{ + Py_ssize_t res; + + res = sizeof(PyListObject) + self->allocated * sizeof(void*); + return PyInt_FromSsize_t(res); +} + static PyObject *list_iter(PyObject *seq); static PyObject *list_reversed(PyListObject* seq, PyObject* unused); @@ -2427,6 +2436,8 @@ PyDoc_STRVAR(getitem_doc, "x.__getitem__(y) <==> x[y]"); PyDoc_STRVAR(reversed_doc, "L.__reversed__() -- return a reverse iterator over the list"); +PyDoc_STRVAR(sizeof_doc, +"L.__sizeof__() -- size of L in bytes"); PyDoc_STRVAR(append_doc, "L.append(object) -- append object to end"); PyDoc_STRVAR(extend_doc, @@ -2452,6 +2463,7 @@ static PyObject *list_subscript(PyListObject*, PyObject*); static PyMethodDef list_methods[] = { {"__getitem__", (PyCFunction)list_subscript, METH_O|METH_COEXIST, getitem_doc}, {"__reversed__",(PyCFunction)list_reversed, METH_NOARGS, reversed_doc}, + {"__sizeof__", (PyCFunction)list_sizeof, METH_NOARGS, sizeof_doc}, {"append", (PyCFunction)listappend, METH_O, append_doc}, {"insert", (PyCFunction)listinsert, METH_VARARGS, insert_doc}, {"extend", (PyCFunction)listextend, METH_O, extend_doc}, diff --git a/Objects/longobject.c b/Objects/longobject.c index 82a57ec..5876495 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -3436,6 +3436,17 @@ long__format__(PyObject *self, PyObject *args) return NULL; } +static PyObject * +long_sizeof(PyLongObject *v) +{ + Py_ssize_t res; + + res = sizeof(PyLongObject) + abs(v->ob_size) * sizeof(digit); + if (v->ob_size != 0) + res -= sizeof(digit); + return PyInt_FromSsize_t(res); +} + #if 0 static PyObject * long_is_finite(PyObject *v) @@ -3455,6 +3466,8 @@ static PyMethodDef long_methods[] = { "Truncating an Integral returns itself."}, {"__getnewargs__", (PyCFunction)long_getnewargs, METH_NOARGS}, {"__format__", (PyCFunction)long__format__, METH_VARARGS}, + {"__sizeof__", (PyCFunction)long_sizeof, METH_NOARGS, + "Returns size in bytes"}, {NULL, NULL} /* sentinel */ }; diff --git a/Objects/typeobject.c b/Objects/typeobject.c index 151ea69..5405fec 100644 --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -3397,6 +3397,20 @@ object_format(PyObject *self, PyObject *args) return result; } +static PyObject * +object_sizeof(PyObject *self, PyObject *args) +{ + Py_ssize_t res, isize; + + res = 0; + isize = self->ob_type->tp_itemsize; + if (isize > 0) + res = self->ob_type->ob_size * isize; + res += self->ob_type->tp_basicsize; + + return PyInt_FromSsize_t(res); +} + static PyMethodDef object_methods[] = { {"__reduce_ex__", object_reduce_ex, METH_VARARGS, PyDoc_STR("helper for pickle")}, @@ -3406,6 +3420,8 @@ static PyMethodDef object_methods[] = { object_subclasshook_doc}, {"__format__", object_format, METH_VARARGS, PyDoc_STR("default object formatter")}, + {"__sizeof__", object_sizeof, METH_NOARGS, + PyDoc_STR("__sizeof__() -> size of object in bytes")}, {0} }; |