pyo3_ffi/cpython/
objimpl.rsuse libc::size_t;
use std::os::raw::c_int;
#[cfg(not(any(PyPy, GraalPy)))]
use std::os::raw::c_void;
use crate::object::*;
#[cfg(not(Py_3_11))]
extern "C" {
pub fn _Py_GetAllocatedBlocks() -> crate::Py_ssize_t;
}
#[cfg(not(any(PyPy, GraalPy)))]
#[repr(C)]
#[derive(Copy, Clone)]
pub struct PyObjectArenaAllocator {
pub ctx: *mut c_void,
pub alloc: Option<extern "C" fn(ctx: *mut c_void, size: size_t) -> *mut c_void>,
pub free: Option<extern "C" fn(ctx: *mut c_void, ptr: *mut c_void, size: size_t)>,
}
#[cfg(not(any(PyPy, GraalPy)))]
impl Default for PyObjectArenaAllocator {
#[inline]
fn default() -> Self {
unsafe { std::mem::zeroed() }
}
}
extern "C" {
#[cfg(not(any(PyPy, GraalPy)))]
pub fn PyObject_GetArenaAllocator(allocator: *mut PyObjectArenaAllocator);
#[cfg(not(any(PyPy, GraalPy)))]
pub fn PyObject_SetArenaAllocator(allocator: *mut PyObjectArenaAllocator);
#[cfg(Py_3_9)]
pub fn PyObject_IS_GC(o: *mut PyObject) -> c_int;
}
#[inline]
#[cfg(not(Py_3_9))]
pub unsafe fn PyObject_IS_GC(o: *mut PyObject) -> c_int {
(crate::PyType_IS_GC(Py_TYPE(o)) != 0
&& match (*Py_TYPE(o)).tp_is_gc {
Some(tp_is_gc) => tp_is_gc(o) != 0,
None => true,
}) as c_int
}
#[cfg(not(Py_3_11))]
extern "C" {
pub fn _PyObject_GC_Malloc(size: size_t) -> *mut PyObject;
pub fn _PyObject_GC_Calloc(size: size_t) -> *mut PyObject;
}
#[inline]
pub unsafe fn PyType_SUPPORTS_WEAKREFS(t: *mut PyTypeObject) -> c_int {
((*t).tp_weaklistoffset > 0) as c_int
}
#[inline]
pub unsafe fn PyObject_GET_WEAKREFS_LISTPTR(o: *mut PyObject) -> *mut *mut PyObject {
let weaklistoffset = (*Py_TYPE(o)).tp_weaklistoffset;
o.offset(weaklistoffset) as *mut *mut PyObject
}