Expose the C++ event queue to python via the python function

m5.internal.event.create().  It takes a python object and a
Tick and calls process() when the Tick occurs.

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extra : convert_revision : 5e4c9728982b206163ff51e6850a1497d85ad7a3

1 files changed, 66 insertions, 0 deletions

diff --git a/src/python/swig/pyevent.cc b/src/python/swig/pyevent.cc
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+++ b/src/python/swig/pyevent.cc
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+/*
+ * 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
+ */
+
+#include <Python.h>
+
+#include "python/swig/pyevent.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 *result;
+
+    result = PyObject_CallMethod(object, "process", "");
+
+    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.
+    }
+}