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

// 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.Collections;

using Python.Runtime;

namespace Python.Test {

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

// Supports CLR threading / reentrancy unit tests.

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

public class ThreadTest {

private static PyObject module;

private static string testmod =

"import CLR\n" +

"from CLR.Python.Test import ThreadTest\n" +

"\n" +

"def echostring(value):\n" +

" return value\n" +

"\n" +

"def echostring2(value):\n" +

" return ThreadTest.CallEchoString(value)\n" +

"\n";

// This method calls back into the CPython runtime - tests

// call this from Python to check that we don't hang on

// nested transitions from managed to Python code and back.

public static string CallEchoString(string arg) {

IntPtr gs = PythonEngine.AcquireLock();

if (module == null) {

module = PythonEngine.ModuleFromString("tt", testmod);

}

PyObject func = module.GetAttr("echostring");

PyString parg = new PyString(arg);

PyObject temp = func.Invoke(parg);

string result = (string)temp.AsManagedObject(typeof(String));

func.Dispose();

parg.Dispose();

temp.Dispose();

PythonEngine.ReleaseLock(gs);

return result;

}

public static string CallEchoString2(string arg) {

IntPtr gs = PythonEngine.AcquireLock();

if (module == null) {

module = PythonEngine.ModuleFromString("tt", testmod);

}

PyObject func = module.GetAttr("echostring2");

PyString parg = new PyString(arg);

PyObject temp = func.Invoke(parg);

string result = (string)temp.AsManagedObject(typeof(String));

func.Dispose();

parg.Dispose();

temp.Dispose();

PythonEngine.ReleaseLock(gs);

return result;

}

}

}