clean up ffi from pyframe to pyhash

src/ffi/pyframe.rs

@@ -8,5 +8,4 @@ opaque_struct!(PyFrameObject);
 extern "C" {
     pub fn PyFrame_GetLineNumber(f: *mut PyFrameObject) -> c_int;
 }
-// skipped PyFrame_GetLineNumber
 // skipped PyFrame_GetCode

src/ffi/pyhash.rs

@@ -1,6 +1,26 @@
+#[cfg(not(Py_LIMITED_API))]
 use crate::ffi::pyport::{Py_hash_t, Py_ssize_t};
-use std::os::raw::{c_char, c_int, c_void};
+#[cfg(not(Py_LIMITED_API))]
+use std::os::raw::{c_char, c_void};
 
+use std::os::raw::{c_int, c_ulong};
+
+extern "C" {
+    // skipped non-limited _Py_HashDouble
+    // skipped non-limited _Py_HashPointer
+    // skipped non-limited _Py_HashPointerRaw
+
+    #[cfg(not(any(Py_LIMITED_API, PyPy)))]
+    pub fn _Py_HashBytes(src: *const c_void, len: Py_ssize_t) -> Py_hash_t;
+}
+
+pub const _PyHASH_MULTIPLIER: c_ulong = 1000003;
+
+// skipped _PyHASH_BITS
+
+// skipped non-limited _Py_HashSecret_t
+
+#[cfg(not(Py_LIMITED_API))]
 #[repr(C)]
 #[derive(Copy, Clone)]
 pub struct PyHash_FuncDef {
@@ -10,6 +30,7 @@ pub struct PyHash_FuncDef {
     pub seed_bits: c_int,
 }
 
+#[cfg(not(Py_LIMITED_API))]
 impl Default for PyHash_FuncDef {
     #[inline]
     fn default() -> Self {
@@ -18,7 +39,14 @@ impl Default for PyHash_FuncDef {
 }
 
 extern "C" {
+    #[cfg(not(any(Py_LIMITED_API, PyPy)))]
     pub fn PyHash_GetFuncDef() -> *mut PyHash_FuncDef;
-    #[cfg(not(PyPy))]
-    pub fn _Py_HashBytes(src: *const c_void, len: Py_ssize_t) -> Py_hash_t;
 }
+
+// skipped Py_HASH_CUTOFF
+
+pub const Py_HASH_EXTERNAL: c_int = 0;
+pub const Py_HASH_SIPHASH24: c_int = 1;
+pub const Py_HASH_FNV: c_int = 2;
+
+// skipped Py_HASH_ALGORITHM