pyo3_ffi/cpython/
objimpl.rs

1#[cfg(not(all(Py_3_11, any(PyPy, GraalPy))))]
2use libc::size_t;
3use std::os::raw::c_int;
4
5#[cfg(not(any(PyPy, GraalPy)))]
6use std::os::raw::c_void;
7
8use crate::object::*;
9
10// skipped _PyObject_SIZE
11// skipped _PyObject_VAR_SIZE
12
13#[cfg(not(Py_3_11))]
14extern "C" {
15    pub fn _Py_GetAllocatedBlocks() -> crate::Py_ssize_t;
16}
17
18#[cfg(not(any(PyPy, GraalPy)))]
19#[repr(C)]
20#[derive(Copy, Clone)]
21pub struct PyObjectArenaAllocator {
22    pub ctx: *mut c_void,
23    pub alloc: Option<extern "C" fn(ctx: *mut c_void, size: size_t) -> *mut c_void>,
24    pub free: Option<extern "C" fn(ctx: *mut c_void, ptr: *mut c_void, size: size_t)>,
25}
26
27#[cfg(not(any(PyPy, GraalPy)))]
28impl Default for PyObjectArenaAllocator {
29    #[inline]
30    fn default() -> Self {
31        unsafe { std::mem::zeroed() }
32    }
33}
34
35extern "C" {
36    #[cfg(not(any(PyPy, GraalPy)))]
37    pub fn PyObject_GetArenaAllocator(allocator: *mut PyObjectArenaAllocator);
38    #[cfg(not(any(PyPy, GraalPy)))]
39    pub fn PyObject_SetArenaAllocator(allocator: *mut PyObjectArenaAllocator);
40
41    #[cfg(Py_3_9)]
42    pub fn PyObject_IS_GC(o: *mut PyObject) -> c_int;
43}
44
45#[inline]
46#[cfg(not(Py_3_9))]
47pub unsafe fn PyObject_IS_GC(o: *mut PyObject) -> c_int {
48    (crate::PyType_IS_GC(Py_TYPE(o)) != 0
49        && match (*Py_TYPE(o)).tp_is_gc {
50            Some(tp_is_gc) => tp_is_gc(o) != 0,
51            None => true,
52        }) as c_int
53}
54
55#[cfg(not(Py_3_11))]
56extern "C" {
57    pub fn _PyObject_GC_Malloc(size: size_t) -> *mut PyObject;
58    pub fn _PyObject_GC_Calloc(size: size_t) -> *mut PyObject;
59}
60
61#[inline]
62pub unsafe fn PyType_SUPPORTS_WEAKREFS(t: *mut PyTypeObject) -> c_int {
63    ((*t).tp_weaklistoffset > 0) as c_int
64}
65
66#[inline]
67pub unsafe fn PyObject_GET_WEAKREFS_LISTPTR(o: *mut PyObject) -> *mut *mut PyObject {
68    let weaklistoffset = (*Py_TYPE(o)).tp_weaklistoffset;
69    o.offset(weaklistoffset) as *mut *mut PyObject
70}
71
72// skipped PyUnstable_Object_GC_NewWithExtraData
pyo3_ffi/cpython/objimpl.rs

pyo3_ffi/cpython/
objimpl.rs
