From d53baf65c14e23c46d251adbd10ce480f29d6d1e Mon Sep 17 00:00:00 2001
From: Benedikt Reinartz <filmor@gmail.com>
Date: Tue, 21 Oct 2025 18:41:05 +0200
Subject: [PATCH] Add PyConfig-related functions

---
 src/runtime/Native/PyStatus.cs   | 12 ++++++++++++
 src/runtime/Runtime.Delegates.cs | 17 ++++++++++++++++-
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 src/runtime/Native/PyStatus.cs

diff --git a/src/runtime/Native/PyStatus.cs b/src/runtime/Native/PyStatus.cs
new file mode 100644
index 000000000..35cb11f30
--- /dev/null
+++ b/src/runtime/Native/PyStatus.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Python.Runtime.Native;
+
+[StructLayout(LayoutKind.Sequential)]
+struct PyStatus
+{
+    int exitcode;
+    IntPtr err_msg;
+    IntPtr func;
+}
diff --git a/src/runtime/Runtime.Delegates.cs b/src/runtime/Runtime.Delegates.cs
index 262dc1e19..92c08dbbb 100644
--- a/src/runtime/Runtime.Delegates.cs
+++ b/src/runtime/Runtime.Delegates.cs
@@ -31,7 +31,6 @@ static Delegates()
             }
             catch (MissingMethodException)
             {
-
                 PyThreadState_GetUnchecked = (delegate* unmanaged[Cdecl]<PyThreadState*>)GetFunctionByName(nameof(PyThreadState_GetUnchecked), GetUnmanagedDll(_PythonDll));
             }
             try
@@ -277,6 +276,15 @@ static Delegates()
             PyType_GetSlot = (delegate* unmanaged[Cdecl]<BorrowedReference, TypeSlotID, IntPtr>)GetFunctionByName(nameof(PyType_GetSlot), GetUnmanagedDll(_PythonDll));
             PyType_FromSpecWithBases = (delegate* unmanaged[Cdecl]<in NativeTypeSpec, BorrowedReference, NewReference>)GetFunctionByName(nameof(PyType_FromSpecWithBases), GetUnmanagedDll(PythonDLL));
 
+            PyConfig_InitPythonConfig = (delegate* unmanaged[Cdecl]<IntPtr, void>)GetFunctionByName(nameof(PyConfig_InitPythonConfig), GetUnmanagedDll(_PythonDll));
+            PyConfig_InitIsolatedConfig = (delegate* unmanaged[Cdecl]<IntPtr, void>)GetFunctionByName(nameof(PyConfig_InitIsolatedConfig), GetUnmanagedDll(_PythonDll));
+            PyConfig_SetString = (delegate* unmanaged[Cdecl]<IntPtr, IntPtr, PyStatus>)GetFunctionByName(nameof(PyConfig_SetString), GetUnmanagedDll(_PythonDll));
+
+            Py_InitializeFromConfig = (delegate* unmanaged[Cdecl]<IntPtr, PyStatus>)GetFunctionByName(nameof(Py_InitializeFromConfig), GetUnmanagedDll(_PythonDll));
+            PyConfig_Clear = (delegate* unmanaged[Cdecl]<IntPtr, void>)GetFunctionByName(nameof(PyConfig_Clear), GetUnmanagedDll(_PythonDll));
+            PyStatus_Exception = (delegate* unmanaged[Cdecl]<PyStatus, int>)GetFunctionByName(nameof(PyStatus_Exception), GetUnmanagedDll(_PythonDll));
+            Py_ExitStatusException = (delegate* unmanaged[Cdecl]<PyStatus, void>)GetFunctionByName(nameof(Py_ExitStatusException), GetUnmanagedDll(_PythonDll));
+
             try
             {
                 _Py_NewReference = (delegate* unmanaged[Cdecl]<BorrowedReference, void>)GetFunctionByName(nameof(_Py_NewReference), GetUnmanagedDll(_PythonDll));
@@ -548,5 +556,12 @@ static Delegates()
         internal static delegate* unmanaged[Cdecl]<int> _Py_IsFinalizing { get; }
         internal static IntPtr PyType_Type { get; }
         internal static int* Py_NoSiteFlag { get; }
+        internal static delegate* unmanaged[Cdecl]<IntPtr, void> PyConfig_InitPythonConfig { get; }
+        internal static delegate* unmanaged[Cdecl]<IntPtr, void> PyConfig_InitIsolatedConfig { get; }
+        internal static delegate* unmanaged[Cdecl]<IntPtr, IntPtr, PyStatus> PyConfig_SetString { get; }
+        internal static delegate* unmanaged[Cdecl]<IntPtr, PyStatus> Py_InitializeFromConfig { get; }
+        internal static delegate* unmanaged[Cdecl]<IntPtr, void> PyConfig_Clear { get; }
+        internal static delegate* unmanaged[Cdecl]<PyStatus, int> PyStatus_Exception { get; }
+        internal static delegate* unmanaged[Cdecl]<PyStatus, void> Py_ExitStatusException { get; }
     }
 }