diff options
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/_collectionsmodule.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c index 4343159..314bafd 100644 --- a/Modules/_collectionsmodule.c +++ b/Modules/_collectionsmodule.c @@ -933,6 +933,23 @@ deque_init(dequeobject *deque, PyObject *args, PyObject *kwdargs) } static PyObject * +deque_sizeof(dequeobject *deque, void *unused) +{ + Py_ssize_t res; + Py_ssize_t blocks; + + res = sizeof(dequeobject); + blocks = (deque->leftindex + deque->len + BLOCKLEN - 1) / BLOCKLEN; + assert(deque->leftindex + deque->len - 1 == + (blocks - 1) * BLOCKLEN + deque->rightindex); + res += blocks * sizeof(block); + return PyLong_FromSsize_t(res); +} + +PyDoc_STRVAR(sizeof_doc, +"D.__sizeof__() -- size of D in memory, in bytes"); + +static PyObject * deque_get_maxlen(dequeobject *deque) { if (deque->maxlen == -1) @@ -995,7 +1012,9 @@ static PyMethodDef deque_methods[] = { {"reverse", (PyCFunction)deque_reverse, METH_NOARGS, reverse_doc}, {"rotate", (PyCFunction)deque_rotate, - METH_VARARGS, rotate_doc}, + METH_VARARGS, rotate_doc}, + {"__sizeof__", (PyCFunction)deque_sizeof, + METH_NOARGS, sizeof_doc}, {NULL, NULL} /* sentinel */ }; |