// ==========================================================================

// This software is subject to the provisions of the Zope Public License,

// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.

// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

// FOR A PARTICULAR PURPOSE.

// ==========================================================================

using System;

using System.Runtime.InteropServices;

using System.Security;

#if (UCS4)

using System.Text;

using Mono.Unix;

#endif

namespace Python.Runtime {

[SuppressUnmanagedCodeSecurityAttribute()]

public class Runtime {

/// <summary>

/// Encapsulates the low-level Python C API. Note that it is

/// the responsibility of the caller to have acquired the GIL

/// before calling any of these methods.

/// </summary>

#if (UCS4)

public const int UCS = 4;

#endif

#if (UCS2)

public const int UCS = 2;

#endif

#if ! (UCS2 || UCS4)

#error You must define either UCS2 or UCS4!

#endif

#if (PYTHON23)

public const string dll = "python23";

public const string pyversion = "2.3";

public const int pyversionnumber = 23;

#endif

#if (PYTHON24)

public const string dll = "python24";

public const string pyversion = "2.4";

public const int pyversionnumber = 24;

#endif

#if (PYTHON25)

public const string dll = "python25";

public const string pyversion = "2.5";

public const int pyversionnumber = 25;

#endif

#if (PYTHON26)

public const string dll = "python26";

public const string pyversion = "2.6";

public const int pyversionnumber = 26;

#endif

#if (PYTHON27)

public const string dll = "python27";

public const string pyversion = "2.7";

public const int pyversionnumber = 27;

#endif

#if ! (PYTHON23 || PYTHON24 || PYTHON25 || PYTHON26 || PYTHON27)

#error You must define one of PYTHON23 to PYTHON27

#endif

internal static bool wrap_exceptions;

internal static bool is32bit;

/// <summary>

/// Intitialize the runtime...

/// </summary>

internal static void Initialize() {

is32bit = IntPtr.Size == 4;

if (0 == Runtime.Py_IsInitialized()) {

Runtime.Py_Initialize();

}

// make sure threads are initialized even if python was initialized already

Runtime.PyEval_InitThreads();

IntPtr dict = Runtime.PyImport_GetModuleDict();

IntPtr op = Runtime.PyDict_GetItemString(dict, "__builtin__");

PyBaseObjectType = Runtime.PyObject_GetAttrString(op, "object");

PyModuleType = Runtime.PyObject_Type(op);

PyNone = Runtime.PyObject_GetAttrString(op, "None");

PyTrue = Runtime.PyObject_GetAttrString(op, "True");

PyFalse = Runtime.PyObject_GetAttrString(op, "False");

PyBoolType = Runtime.PyObject_Type(PyTrue);

PyNoneType = Runtime.PyObject_Type(PyNone);

PyTypeType = Runtime.PyObject_Type(PyNoneType);

op = Runtime.PyObject_GetAttrString(dict, "keys");

PyMethodType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyString_FromString("string");

PyStringType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyUnicode_FromString("unicode");

PyUnicodeType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyTuple_New(0);

PyTupleType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyList_New(0);

PyListType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyDict_New();

PyDictType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyInt_FromInt32(0);

PyIntType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyLong_FromLong(0);

PyLongType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

op = Runtime.PyFloat_FromDouble(0);

PyFloatType = Runtime.PyObject_Type(op);

Runtime.Decref(op);

IntPtr s = Runtime.PyString_FromString("_temp");

IntPtr d = Runtime.PyDict_New();

IntPtr c = Runtime.PyClass_New(IntPtr.Zero, d, s);

PyClassType = Runtime.PyObject_Type(c);

IntPtr i = Runtime.PyInstance_New(c, IntPtr.Zero, IntPtr.Zero);

PyInstanceType = Runtime.PyObject_Type(i);

Runtime.Decref(s);

Runtime.Decref(i);

Runtime.Decref(c);

Runtime.Decref(d);

Error = new IntPtr(-1);

// Determine whether we need to wrap exceptions for versions of

// of the Python runtime that do not allow new-style classes to

// be used as exceptions (Python versions 2.4 and lower).

#if (PYTHON25 || PYTHON26 || PYTHON27)

wrap_exceptions = false;

#else

IntPtr m = PyImport_ImportModule("exceptions");

Exceptions.ErrorCheck(m);

op = Runtime.PyObject_GetAttrString(m, "Exception");

Exceptions.ErrorCheck(op);

if (Runtime.PyObject_TYPE(op) == PyClassType) {

wrap_exceptions = true;

}

Runtime.Decref(op);

Runtime.Decref(m);

#endif

// Initialize modules that depend on the runtime class.

AssemblyManager.Initialize();

PyCLRMetaType = MetaType.Initialize();

Exceptions.Initialize();

ImportHook.Initialize();

// Need to add the runtime directory to sys.path so that we

// can find built-in assemblies like System.Data, et. al.

string rtdir = RuntimeEnvironment.GetRuntimeDirectory();

IntPtr path = Runtime.PySys_GetObject("path");

IntPtr item = Runtime.PyString_FromString(rtdir);

Runtime.PyList_Append(path, item);

Runtime.Decref(item);

AssemblyManager.UpdatePath();

}

internal static void Shutdown() {

AssemblyManager.Shutdown();

Exceptions.Shutdown();

ImportHook.Shutdown();

Py_Finalize();

}

internal static IntPtr Py_single_input = (IntPtr)256;

internal static IntPtr Py_file_input = (IntPtr)257;

internal static IntPtr Py_eval_input = (IntPtr)258;

internal static IntPtr PyBaseObjectType;

internal static IntPtr PyModuleType;

internal static IntPtr PyClassType;

internal static IntPtr PyInstanceType;

internal static IntPtr PyCLRMetaType;

internal static IntPtr PyMethodType;

internal static IntPtr PyUnicodeType;

internal static IntPtr PyStringType;

internal static IntPtr PyTupleType;

internal static IntPtr PyListType;

internal static IntPtr PyDictType;

internal static IntPtr PyIntType;

internal static IntPtr PyLongType;

internal static IntPtr PyFloatType;

internal static IntPtr PyBoolType;

internal static IntPtr PyNoneType;

internal static IntPtr PyTypeType;

internal static IntPtr PyTrue;

internal static IntPtr PyFalse;

internal static IntPtr PyNone;

internal static IntPtr Error;

internal static IntPtr GetBoundArgTuple(IntPtr obj, IntPtr args) {

if (Runtime.PyObject_TYPE(args) != Runtime.PyTupleType) {

Exceptions.SetError(Exceptions.TypeError, "tuple expected");

return IntPtr.Zero;

}

int size = Runtime.PyTuple_Size(args);

IntPtr items = Runtime.PyTuple_New(size + 1);

Runtime.PyTuple_SetItem(items, 0, obj);

Runtime.Incref(obj);

for (int i = 0; i < size; i++) {

IntPtr item = Runtime.PyTuple_GetItem(args, i);

Runtime.Incref(item);

Runtime.PyTuple_SetItem(items, i + 1, item);

}

return items;

}

internal static IntPtr ExtendTuple(IntPtr t, params IntPtr[] args) {

int size = Runtime.PyTuple_Size(t);

int add = args.Length;

IntPtr item;

IntPtr items = Runtime.PyTuple_New(size + add);

for (int i = 0; i < size; i++) {

item = Runtime.PyTuple_GetItem(t, i);

Runtime.Incref(item);

Runtime.PyTuple_SetItem(items, i, item);

}

for (int n = 0; n < add; n++) {

item = args[n];

Runtime.Incref(item);

Runtime.PyTuple_SetItem(items, size + n, item);

}

return items;

}

internal static Type[] PythonArgsToTypeArray(IntPtr arg) {

return PythonArgsToTypeArray(arg, false);

}

internal static Type[] PythonArgsToTypeArray(IntPtr arg, bool mangleObjects) {

// Given a PyObject * that is either a single type object or a

// tuple of (managed or unmanaged) type objects, return a Type[]

// containing the CLR Type objects that map to those types.

IntPtr args = arg;

bool free = false;

if (!Runtime.PyTuple_Check(arg)) {

args = Runtime.PyTuple_New(1);

Runtime.Incref(arg);

Runtime.PyTuple_SetItem(args, 0, arg);

free = true;

}

int n = Runtime.PyTuple_Size(args);

Type[] types = new Type[n];

Type t = null;

for (int i = 0; i < n; i++) {

IntPtr op = Runtime.PyTuple_GetItem(args, i);

if (mangleObjects && (!Runtime.PyType_Check(op))) {

op = Runtime.PyObject_TYPE(op);

}

ManagedType mt = ManagedType.GetManagedObject(op);

if (mt is ClassBase) {

t = ((ClassBase)mt).type;

}

else if (mt is CLRObject) {

object inst = ((CLRObject)mt).inst;

if (inst is Type) {

t = inst as Type;

}

}

else {

t = Converter.GetTypeByAlias(op);

}

if (t == null) {

types = null;

break;

}

types[i] = t;

}

if (free) {

Runtime.Decref(args);

}

return types;

}

//===================================================================

// Managed exports of the Python C API. Where appropriate, we do

// some optimization to avoid managed <--> unmanaged transitions

// (mostly for heavily used methods).

//===================================================================

internal unsafe static void Incref(IntPtr op) {

#if (Py_DEBUG)

Py_IncRef(op);

return;

#else

void *p = (void *)op;

if ((void *)0 != p) {

if (is32bit) { (*(int *)p)++; }

else { (*(long *)p)++; }

}

#endif

}

internal unsafe static void Decref(IntPtr op) {

if (op == IntPtr.Zero) {

DebugUtil.Print("Decref(NULL)");

}

#if (Py_DEBUG)

// Py_DecRef calls Python's Py_DECREF

Py_DecRef(op);

return;

#else

void* p = (void*) op;

if ((void*) 0 != p) {

if (is32bit) { --(*(int*) p); }

else { --(*(long*) p); }

if ((*(int*) p) == 0) {

// PyObject_HEAD: struct _typeobject *ob_type

void* t = is32bit ? (void*) (*((uint*) p + 1)) :

(void*) (*((ulong*) p + 1));

// PyTypeObject: destructor tp_dealloc

void* f = is32bit ? (void*) (*((uint*) t + 6)) :

(void*) (*((ulong*) t + 6));

if ((void*) 0 == f) {

return;

}

NativeCall.Impl.Void_Call_1(new IntPtr(f), op);

return;

}

}

#endif

}

#if (Py_DEBUG)

// Py_IncRef and Py_DecRef are taking care of the extra payload

// in Py_DEBUG builds of Python like _Py_RefTotal

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

private unsafe static extern void

Py_IncRef(IntPtr ob);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

private unsafe static extern void

Py_DecRef(IntPtr ob);

#endif

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

Py_Initialize();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

Py_IsInitialized();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

Py_Finalize();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

Py_NewInterpreter();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

Py_EndInterpreter(IntPtr threadState);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyThreadState_New(IntPtr istate);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyThreadState_Get();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyThread_get_key_value(IntPtr key);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyThread_get_thread_ident();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyThread_set_key_value(IntPtr key, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyThreadState_Swap(IntPtr key);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyGILState_Ensure();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyGILState_Release(IntPtr gs);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyGILState_GetThisThreadState();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

public unsafe static extern int

Py_Main(int argc, string[] argv);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_InitThreads();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_AcquireLock();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_ReleaseLock();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_AcquireThread(IntPtr tstate);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_ReleaseThread(IntPtr tstate);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyEval_SaveThread();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

PyEval_RestoreThread(IntPtr tstate);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyEval_GetBuiltins();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyEval_GetGlobals();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyEval_GetLocals();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetProgramName();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

Py_SetProgramName(string name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetPythonHome();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern void

Py_SetPythonHome(string home);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetVersion();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetPlatform();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetCopyright();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetCompiler();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern string

Py_GetBuildInfo();

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyRun_SimpleString(string code);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyRun_String(string code, IntPtr st, IntPtr globals, IntPtr locals);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

Py_CompileString(string code, string file, IntPtr tok);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyImport_ExecCodeModule(string name, IntPtr code);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyCFunction_New(IntPtr ml, IntPtr self);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyCFunction_NewEx(IntPtr ml, IntPtr self, IntPtr mod);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyCFunction_Call(IntPtr func, IntPtr args, IntPtr kw);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyClass_New(IntPtr bases, IntPtr dict, IntPtr name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyInstance_New(IntPtr cls, IntPtr args, IntPtr kw);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyInstance_NewRaw(IntPtr cls, IntPtr dict);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyMethod_New(IntPtr func, IntPtr self, IntPtr cls);

//====================================================================

// Python abstract object API

//====================================================================

// A macro-like method to get the type of a Python object. This is

// designed to be lean and mean in IL & avoid managed <-> unmanaged

// transitions. Note that this does not incref the type object.

internal unsafe static IntPtr

PyObject_TYPE(IntPtr op) {

void* p = (void*)op;

if ((void*)0 == p) {

return IntPtr.Zero;

}

#if (Py_DEBUG)

int n = 3;

#else

int n = 1;

#endif

if (is32bit) {

return new IntPtr((void*)(*((uint*)p + n)));

}

else {

return new IntPtr((void*)(*((ulong*)p + n)));

}

}

// Managed version of the standard Python C API PyObject_Type call.

// This version avoids a managed <-> unmanaged transition. This one

// does incref the returned type object.

internal unsafe static IntPtr

PyObject_Type(IntPtr op) {

IntPtr tp = PyObject_TYPE(op);

Runtime.Incref(tp);

return tp;

}

internal static string PyObject_GetTypeName(IntPtr op) {

IntPtr pyType = Marshal.ReadIntPtr(op, ObjectOffset.ob_type);

IntPtr ppName = Marshal.ReadIntPtr(pyType, TypeOffset.tp_name);

return Marshal.PtrToStringAnsi(ppName);

}

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_HasAttrString(IntPtr pointer, string name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_GetAttrString(IntPtr pointer, string name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_SetAttrString(IntPtr pointer, string name, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_HasAttr(IntPtr pointer, IntPtr name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_GetAttr(IntPtr pointer, IntPtr name);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_SetAttr(IntPtr pointer, IntPtr name, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_GetItem(IntPtr pointer, IntPtr key);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_SetItem(IntPtr pointer, IntPtr key, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_DelItem(IntPtr pointer, IntPtr key);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_GetIter(IntPtr op);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Call(IntPtr pointer, IntPtr args, IntPtr kw);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_CallObject(IntPtr pointer, IntPtr args);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_Compare(IntPtr value1, IntPtr value2);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_IsInstance(IntPtr ob, IntPtr type);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_IsSubclass(IntPtr ob, IntPtr type);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyCallable_Check(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_IsTrue(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyObject_Size(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Hash(IntPtr op);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Repr(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Str(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention = CallingConvention.Cdecl,

ExactSpelling = true, CharSet = CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Unicode(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyObject_Dir(IntPtr pointer);

//====================================================================

// Python number API

//====================================================================

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyNumber_Int(IntPtr ob);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyNumber_Long(IntPtr ob);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyNumber_Float(IntPtr ob);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern bool

PyNumber_Check(IntPtr ob);

internal static bool PyInt_Check(IntPtr ob) {

return PyObject_TypeCheck(ob, Runtime.PyIntType);

}

internal static bool PyBool_Check(IntPtr ob) {

return PyObject_TypeCheck(ob, Runtime.PyBoolType);

}

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

private unsafe static extern IntPtr

PyInt_FromLong(IntPtr value);

internal static IntPtr PyInt_FromInt32(int value) {

IntPtr v = new IntPtr(value);

return PyInt_FromLong(v);

}

internal static IntPtr PyInt_FromInt64(long value) {

IntPtr v = new IntPtr(value);

return PyInt_FromLong(v);

}

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyInt_AsLong(IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyInt_FromString(string value, IntPtr end, int radix);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyInt_GetMax();

internal static bool PyLong_Check(IntPtr ob) {

return PyObject_TYPE(ob) == Runtime.PyLongType;

}

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromLong(long value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromUnsignedLong(uint value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromDouble(double value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromLongLong(long value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromUnsignedLongLong(ulong value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyLong_FromString(string value, IntPtr end, int radix);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PyLong_AsLong(IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern uint

PyLong_AsUnsignedLong(IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern long

PyLong_AsLongLong(IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern ulong

PyLong_AsUnsignedLongLong(IntPtr value);

internal static bool PyFloat_Check(IntPtr ob) {

return PyObject_TYPE(ob) == Runtime.PyFloatType;

}

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyFloat_FromDouble(double value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PyFloat_FromString(IntPtr value, IntPtr junk);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern double

PyFloat_AsDouble(IntPtr ob);

//====================================================================

// Python sequence API

//====================================================================

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern bool

PySequence_Check(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_GetItem(IntPtr pointer, int index);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_SetItem(IntPtr pointer, int index, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_DelItem(IntPtr pointer, int index);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_GetSlice(IntPtr pointer, int i1, int i2);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_SetSlice(IntPtr pointer, int i1, int i2, IntPtr v);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_DelSlice(IntPtr pointer, int i1, int i2);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_Size(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_Contains(IntPtr pointer, IntPtr item);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_Concat(IntPtr pointer, IntPtr other);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_Repeat(IntPtr pointer, int count);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_Index(IntPtr pointer, IntPtr item);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern int

PySequence_Count(IntPtr pointer, IntPtr value);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_Tuple(IntPtr pointer);

[DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl,

ExactSpelling=true, CharSet=CharSet.Ansi)]

internal unsafe static extern IntPtr

PySequence_List(IntPtr pointer);

//====================================================================

// Python string API

//====================================================================

internal static bool IsStringType(IntPtr op) {

IntPtr t = PyObject_TYPE(op);

return (t == PyStringType) || (t == PyUnicodeType);

}

internal static bool PyString_Check(IntPtr ob) {