pyevent.cc

来自「M5,一个功能强大的多处理器系统模拟器.很多针对处理器架构,性能的研究都使用它作」· CC 代码 · 共 70 行

/*
 * Copyright (c) 2006
 * The Regents of The University of Michigan
 * All Rights Reserved
 *
 * This code is part of the M5 simulator.
 *
 * Permission is granted to use, copy, create derivative works and
 * redistribute this software and such derivative works for any
 * purpose, so long as the copyright notice above, this grant of
 * permission, and the disclaimer below appear in all copies made; and
 * so long as the name of The University of Michigan is not used in
 * any advertising or publicity pertaining to the use or distribution
 * of this software without specific, written prior authorization.
 *
 * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE
 * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND
 * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE
 * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT,
 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN
 * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGES.
 *
 * Authors: Nathan L. Binkert
 */

#include <Python.h>

#include "python/swig/pyevent.hh"
#include "sim/async.hh"

PythonEvent::PythonEvent(PyObject *obj, Tick when, Priority priority)
    : Event(&mainEventQueue, priority), object(obj)
{
    if (object == NULL)
        panic("Passed in invalid object");

    Py_INCREF(object);

    setFlags(AutoDelete);
    schedule(when);
}

PythonEvent::~PythonEvent()
{
    Py_DECREF(object);
}

void
PythonEvent::process()
{
    PyObject *args = PyTuple_New(0);
    PyObject *result = PyObject_Call(object, args, NULL);
    Py_DECREF(args);

    if (result) {
        // Nothing to do just decrement the reference count
        Py_DECREF(result);
    } else {
        // Somethign should be done to signal back to the main interpreter
        // that there's been an exception.
        async_event = true;
        async_exception = true;
    }
}