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// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICEPY_UTIL_H
#define ICEPY_UTIL_H
#include <Config.h>
#include <Ice/BuiltinSequences.h>
#include <Ice/Current.h>
#include <Ice/Exception.h>
#include <IceUtil/Thread.h>
#include <IceUtil/Monitor.h>
#include <IceUtil/Mutex.h>
namespace IcePy
{
//
// Invokes Py_DECREF on a Python object.
//
class PyObjectHandle
{
public:
PyObjectHandle(PyObject* = NULL);
PyObjectHandle(const PyObjectHandle&);
~PyObjectHandle();
void operator=(PyObject*);
void operator=(const PyObjectHandle&);
PyObject* get();
PyObject* release();
private:
PyObject* _p;
};
//
// Manages the interpreter's exception.
//
class PyException
{
public:
//
// Retrieves the interpreter's current exception.
//
PyException();
//
// Uses the given exception.
//
PyException(PyObject*);
//
// Convert the Python exception to its C++ equivalent.
//
void raise();
PyObjectHandle ex;
private:
void raiseLocalException();
std::string getTraceback();
std::string getTypeName();
PyObjectHandle _type;
PyObjectHandle _tb;
};
//
// Release Python's Global Interpreter Lock during potentially time-consuming
// (and non-Python related) work.
//
class AllowThreads
{
public:
AllowThreads();
~AllowThreads();
private:
PyThreadState* _state;
};
//
// Ensure that the current thread is capable of calling into Python.
//
class AdoptThread
{
public:
AdoptThread();
~AdoptThread();
private:
PyGILState_STATE _state;
};
//
// Convert Ice::StringSeq to and from a Python list.
//
bool listToStringSeq(PyObject*, Ice::StringSeq&);
bool stringSeqToList(const Ice::StringSeq&, PyObject*);
//
// Convert a tuple to Ice::StringSeq.
//
bool tupleToStringSeq(PyObject*, Ice::StringSeq&);
//
// Convert Ice::Context to and from a Python dictionary.
//
bool dictionaryToContext(PyObject*, Ice::Context&);
bool contextToDictionary(const Ice::Context&, PyObject*);
//
// Returns a borrowed reference to the Python type object corresponding
// to the given Python type name.
//
PyObject* lookupType(const std::string&);
//
// Creates an exception instance of the given type.
//
PyObject* createExceptionInstance(PyObject*);
//
// Converts an Ice exception into a Python exception.
//
PyObject* convertException(const Ice::Exception&);
//
// Converts an Ice exception into a Python exception and sets it in the Python environment.
//
void setPythonException(const Ice::Exception&);
//
// Sets an exception in the Python environment.
//
void setPythonException(PyObject*);
//
// Converts a Python exception into an Ice exception and throws it.
// If no exception is provided, the interpreter's current exception
// is obtained. The second argument is an optional traceback object.
//
void throwPythonException();
//
// Handle the SystemExit exception.
//
void handleSystemExit(PyObject*);
//
// Create a Python instance of Ice.Identity.
//
PyObject* createIdentity(const Ice::Identity&);
//
// Verify that the object is Ice.Identity.
//
bool checkIdentity(PyObject*);
//
// Assign values to members of an instance of Ice.Identity.
//
bool setIdentity(PyObject*, const Ice::Identity&);
//
// Extract the members of Ice.Identity.
//
bool getIdentity(PyObject*, Ice::Identity&);
//
// This class invokes a member function in a separate thread.
//
template<typename T>
class InvokeThread : public IceUtil::Thread
{
public:
InvokeThread(const IceInternal::Handle<T>& target, void (T::*func)(void),
IceUtil::Monitor<IceUtil::Mutex>& monitor, bool& done) :
_target(target), _func(func), _monitor(monitor), _done(done), _ex(0)
{
}
~InvokeThread()
{
delete _ex;
}
virtual void run()
{
try
{
(_target.get() ->* _func)();
}
catch(const Ice::Exception& ex)
{
_ex = ex.ice_clone();
}
IceUtil::Monitor<IceUtil::Mutex>::Lock sync(_monitor);
_done = true;
_monitor.notify();
}
Ice::Exception* getException() const
{
return _ex;
}
private:
IceInternal::Handle<T> _target;
void (T::*_func)(void);
IceUtil::Monitor<IceUtil::Mutex>& _monitor;
bool& _done;
Ice::Exception* _ex;
};
}
extern "C" PyObject* IcePy_identityToString(PyObject*, PyObject*);
extern "C" PyObject* IcePy_stringToIdentity(PyObject*, PyObject*);
extern "C" PyObject* IcePy_generateUUID(PyObject*);
#endif
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