FazBrowse GitHub Viewer | Trending |
URL:
| Home
Tools: [Download Repo ZIP]   [Original HTTPS Page]

[3.13] gh-116946: fully implement GC protocol for `_hashlib` objects (GH-138289) by picnixz · Pull Request #138326 · python/cpython · GitHub

/ cpython Public

[3.13] gh-116946: fully implement GC protocol for _hashlib objects (GH-138289) #138326

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
picnixz merged 1 commit into from
Sep 1, 2025
Conversation 0 Commits 1 Checks 35 Files changed
Merged

[3.13] gh-116946: fully implement GC protocol for _hashlib objects (GH-138289) #138326

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension .c  (1) All 1 file type selected
Viewed files
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Unified
Split
Hide whitespace
Diff view
Unified
Split
Hide whitespace
91 changes: 68 additions & 23 deletions Modules/_hashopenssl.c
Show comments
View file
Open in desktop
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
Show hidden characters
Original file line number Diff line number Diff line change
Expand Up @@ -282,6 +282,8 @@ typedef struct {
PyMutex mutex; /* OpenSSL context lock */
} EVPobject;

#define EVPobject_CAST(op) ((EVPobject *)(op))

typedef struct {
PyObject_HEAD
HMAC_CTX *ctx; /* OpenSSL hmac context */
Expand All @@ -290,6 +292,8 @@ typedef struct {
PyMutex mutex; /* HMAC context lock */
} HMACobject;

#define HMACobject_CAST(op) ((HMACobject *)(op))

#include "clinic/_hashopenssl.c.h"
/*[clinic input]
module _hashlib
Expand Down Expand Up @@ -497,7 +501,9 @@ py_digest_by_digestmod(PyObject *module, PyObject *digestmod, enum Py_hash_type
static EVPobject *
newEVPobject(PyTypeObject *type)
{
EVPobject *retval = (EVPobject *)PyObject_New(EVPobject, type);
assert(type != NULL);
assert(type->tp_alloc != NULL);
EVPobject *retval = (EVPobject *)type->tp_alloc(type, 0);
if (retval == NULL) {
return NULL;
}
Expand Down Expand Up @@ -536,14 +542,23 @@ EVP_hash(EVPobject *self, const void *vp, Py_ssize_t len)
/* Internal methods for a hash object */

static void
EVP_dealloc(EVPobject *self)
EVP_dealloc(PyObject *op)
{
PyTypeObject *tp = Py_TYPE(self);
PyTypeObject *tp = Py_TYPE(op);
PyObject_GC_UnTrack(op);
EVPobject *self = EVPobject_CAST(op);
EVP_MD_CTX_free(self->ctx);
PyObject_Free(self);
tp->tp_free(self);
Py_DECREF(tp);
}

static int
EVP_traverse(PyObject *op, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(op));
return 0;
}

static int
locked_EVP_MD_CTX_copy(EVP_MD_CTX *new_ctx_p, EVPobject *self)
{
Expand Down Expand Up @@ -781,6 +796,7 @@ PyDoc_STRVAR(hashtype_doc,

static PyType_Slot EVPtype_slots[] = {
{Py_tp_dealloc, EVP_dealloc},
{Py_tp_traverse, EVP_traverse},
{Py_tp_repr, EVP_repr},
{Py_tp_doc, (char *)hashtype_doc},
{Py_tp_methods, EVP_methods},
Expand All @@ -789,11 +805,16 @@ static PyType_Slot EVPtype_slots[] = {
};

static PyType_Spec EVPtype_spec = {
"_hashlib.HASH", /*tp_name*/
sizeof(EVPobject), /*tp_basicsize*/
0, /*tp_itemsize*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DISALLOW_INSTANTIATION | Py_TPFLAGS_IMMUTABLETYPE,
EVPtype_slots
.name = "_hashlib.HASH",
.basicsize = sizeof(EVPobject),
.flags = (
Py_TPFLAGS_DEFAULT
| Py_TPFLAGS_BASETYPE
| Py_TPFLAGS_DISALLOW_INSTANTIATION
| Py_TPFLAGS_IMMUTABLETYPE
| Py_TPFLAGS_HAVE_GC
),
.slots = EVPtype_slots
};

#ifdef PY_OPENSSL_HAS_SHAKE
Expand Down Expand Up @@ -934,18 +955,25 @@ PyDoc_STRVAR(hashxoftype_doc,
"digest_size -- number of bytes in this hashes output");

static PyType_Slot EVPXOFtype_slots[] = {
{Py_tp_dealloc, EVP_dealloc},
{Py_tp_traverse, EVP_traverse},
{Py_tp_doc, (char *)hashxoftype_doc},
{Py_tp_methods, EVPXOF_methods},
{Py_tp_getset, EVPXOF_getseters},
{0, 0},
};

static PyType_Spec EVPXOFtype_spec = {
"_hashlib.HASHXOF", /*tp_name*/
sizeof(EVPobject), /*tp_basicsize*/
0, /*tp_itemsize*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DISALLOW_INSTANTIATION | Py_TPFLAGS_IMMUTABLETYPE,
EVPXOFtype_slots
.name = "_hashlib.HASHXOF",
.basicsize = sizeof(EVPobject),
.flags = (
Py_TPFLAGS_DEFAULT
| Py_TPFLAGS_BASETYPE
| Py_TPFLAGS_DISALLOW_INSTANTIATION
| Py_TPFLAGS_IMMUTABLETYPE
| Py_TPFLAGS_HAVE_GC
),
.slots = EVPXOFtype_slots
};


Expand Down Expand Up @@ -1659,7 +1687,8 @@ _hashlib_hmac_new_impl(PyObject *module, Py_buffer *key, PyObject *msg_obj,
}

_hashlibstate *state = get_hashlib_state(module);
self = PyObject_New(HMACobject, state->HMACtype);
assert(state->HMACtype != NULL);
self = (HMACobject *)state->HMACtype->tp_alloc(state->HMACtype, 0);
if (self == NULL) {
goto error;
}
Expand Down Expand Up @@ -1764,7 +1793,8 @@ _hashlib_HMAC_copy_impl(HMACobject *self)
return NULL;
}

retval = PyObject_New(HMACobject, Py_TYPE(self));
PyTypeObject *type = Py_TYPE(self);
retval = (HMACobject *)type->tp_alloc(type, 0);
if (retval == NULL) {
HMAC_CTX_free(ctx);
return NULL;
Expand All @@ -1776,17 +1806,26 @@ _hashlib_HMAC_copy_impl(HMACobject *self)
}

static void
_hmac_dealloc(HMACobject *self)
_hmac_dealloc(PyObject *op)
{
PyTypeObject *tp = Py_TYPE(self);
PyTypeObject *tp = Py_TYPE(op);
PyObject_GC_UnTrack(op);
HMACobject *self = HMACobject_CAST(op);
if (self->ctx != NULL) {
HMAC_CTX_free(self->ctx);
self->ctx = NULL;
}
PyObject_Free(self);
tp->tp_free(self);
Py_DECREF(tp);
}

static int
_hmac_traverse(PyObject *op, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(op));
return 0;
}

static PyObject *
_hmac_repr(HMACobject *self)
{
Expand Down Expand Up @@ -1954,16 +1993,22 @@ digest_size -- number of bytes in digest() output\n");
static PyType_Slot HMACtype_slots[] = {
{Py_tp_doc, (char *)hmactype_doc},
{Py_tp_repr, (reprfunc)_hmac_repr},
{Py_tp_dealloc,(destructor)_hmac_dealloc},
{Py_tp_dealloc, _hmac_dealloc},
{Py_tp_traverse, _hmac_traverse},
{Py_tp_methods, HMAC_methods},
{Py_tp_getset, HMAC_getset},
{0, NULL}
};

PyType_Spec HMACtype_spec = {
"_hashlib.HMAC", /* name */
sizeof(HMACobject), /* basicsize */
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION | Py_TPFLAGS_IMMUTABLETYPE,
.name = "_hashlib.HMAC",
.basicsize = sizeof(HMACobject),
.flags = (
Py_TPFLAGS_DEFAULT
| Py_TPFLAGS_DISALLOW_INSTANTIATION
| Py_TPFLAGS_IMMUTABLETYPE
| Py_TPFLAGS_HAVE_GC
),
.slots = HMACtype_slots,
};

Expand Down
Loading
Back | FazBrowse Home | New Git URL