61 lines
2.1 KiB
Rust
61 lines
2.1 KiB
Rust
use libc::{c_void, c_char, c_int, size_t};
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use pyport::Py_ssize_t;
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use object::*;
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extern "C" {
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pub fn PyObject_Malloc(arg1: size_t) -> *mut c_void;
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pub fn PyObject_Realloc(arg1: *mut c_void, arg2: size_t)
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-> *mut c_void;
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pub fn PyObject_Free(arg1: *mut c_void);
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pub fn PyObject_Init(arg1: *mut PyObject, arg2: *mut PyTypeObject)
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-> *mut PyObject;
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pub fn PyObject_InitVar(arg1: *mut PyVarObject, arg2: *mut PyTypeObject,
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arg3: Py_ssize_t) -> *mut PyVarObject;
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pub fn _PyObject_New(arg1: *mut PyTypeObject) -> *mut PyObject;
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pub fn _PyObject_NewVar(arg1: *mut PyTypeObject, arg2: Py_ssize_t)
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-> *mut PyVarObject;
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// GC Support
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pub fn PyGC_Collect() -> Py_ssize_t;
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pub fn _PyObject_GC_Resize(arg1: *mut PyVarObject, arg2: Py_ssize_t)
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-> *mut PyVarObject;
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pub fn _PyObject_GC_Malloc(arg1: size_t) -> *mut PyObject;
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pub fn _PyObject_GC_New(arg1: *mut PyTypeObject) -> *mut PyObject;
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pub fn _PyObject_GC_NewVar(arg1: *mut PyTypeObject, arg2: Py_ssize_t)
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-> *mut PyVarObject;
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pub fn PyObject_GC_Track(arg1: *mut c_void);
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pub fn PyObject_GC_UnTrack(arg1: *mut c_void);
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pub fn PyObject_GC_Del(arg1: *mut c_void);
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}
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/// Test if a type has a GC head
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#[inline(always)]
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pub unsafe fn PyType_IS_GC(t : *mut PyTypeObject) -> c_int {
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PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)
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}
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/// Test if an object has a GC head
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#[inline(always)]
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pub unsafe fn PyObject_IS_GC(o : *mut PyObject) -> c_int {
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(PyType_IS_GC(Py_TYPE(o)) != 0 &&
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match (*Py_TYPE(o)).tp_is_gc {
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Some(tp_is_gc) => tp_is_gc(o) != 0,
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None => true
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}) as c_int
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}
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/* Test if a type supports weak references */
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#[inline(always)]
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pub unsafe fn PyType_SUPPORTS_WEAKREFS(t : *mut PyTypeObject) -> c_int {
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(PyType_HasFeature((t), Py_TPFLAGS_HAVE_WEAKREFS) != 0
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&& ((*t).tp_weaklistoffset > 0)) as c_int
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}
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#[inline(always)]
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pub unsafe fn PyObject_GET_WEAKREFS_LISTPTR(o : *mut PyObject) -> *mut *mut PyObject {
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let weaklistoffset = (*Py_TYPE(o)).tp_weaklistoffset as isize;
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(o as *mut c_char).offset(weaklistoffset) as *mut *mut PyObject
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}
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