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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#ifndef ICEPY_THREAD_H
#define ICEPY_THREAD_H
#include <Config.h>
#include <Util.h>
#include <Ice/Initialize.h>
#include <IceUtil/Thread.h>
#include <IceUtil/Monitor.h>
namespace IcePy
{
//
// 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;
};
//
// ThreadHook ensures that every Ice thread is ready to invoke the Python API.
// It also acts as a wrapper for an optional ThreadNotification object.
//
class ThreadHook : public Ice::ThreadNotification
{
public:
ThreadHook(PyObject*, PyObject*, PyObject*);
virtual void start();
virtual void stop();
private:
PyObjectHandle _threadNotification;
PyObjectHandle _threadStart;
PyObjectHandle _threadStop;
};
typedef IceUtil::Handle<ThreadHook> ThreadHookPtr;
//
// 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;
};
}
#endif
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