gem5/src/python/swig/pyevent.hh
Nathan Binkert 4e02e7c217 python: Fix the reference counting for python events placed on the eventq.
We need to add a reference when an object is put on the C++ queue, and remove
a reference when the object is removed from the queue.  This was not happening
before and caused a memory problem.
2008-11-10 11:51:18 -08:00

55 lines
2.1 KiB
C++

/*
* Copyright (c) 2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
*/
#ifndef __PYTHON_SWIG_PYEVENT_HH__
#define __PYTHON_SWIG_PYEVENT_HH__
#include "sim/eventq.hh"
#include "sim/sim_events.hh"
class PythonEvent : public Event
{
private:
PyObject *object;
public:
PythonEvent(PyObject *obj, Event::Priority priority);
~PythonEvent();
void incref() { Py_INCREF(object); }
void decref() { Py_DECREF(object); }
virtual void process();
};
CountedDrainEvent *createCountedDrain();
void cleanupCountedDrain(Event *counted_drain);
#endif // __PYTHON_SWIG_PYEVENT_HH__