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.

--HG--
extra : convert_revision : 5e4c9728982b206163ff51e6850a1497d85ad7a3

src/SConscript

@@ -131,6 +131,8 @@ base_sources = Split('''
         python/swig/init.cc
         python/swig/debug_wrap.cc
         python/swig/main_wrap.cc
+        python/swig/event_wrap.cc
+        python/swig/pyevent.cc
 
 	sim/builder.cc
 	sim/debug.cc

src/python/SConscript

@@ -107,6 +107,7 @@ def swig_it(basename):
 
 swig_it('main')
 swig_it('debug')
+swig_it('event')
 
 # Action function to build the zip archive.  Uses the PyZipFile module
 # included in the standard Python library.

src/python/swig/event.i

@@ -0,0 +1,54 @@
+/*
+ * 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
+ */
+
+%module event
+
+%{
+#include "python/swig/pyevent.hh"
+
+inline void
+create(PyObject *object, Tick when)
+{
+    new PythonEvent(object, when);
+}
+%}
+
+%include "stdint.i"
+%include "sim/host.hh"
+
+%inline %{
+extern void create(PyObject *object, Tick when);
+%}
+
+%wrapper %{
+// fix up module name to reflect the fact that it's inside the m5 package
+#undef SWIG_name
+#define SWIG_name "m5.internal._event"
+%}

src/python/swig/pyevent.cc

@@ -0,0 +1,66 @@
+/*
+ * 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.
+    }
+}

src/python/swig/pyevent.hh

@@ -0,0 +1,48 @@
+/*
+ * 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"
+
+class PythonEvent : public Event
+{
+  private:
+    PyObject *object;
+
+  public:
+    PythonEvent(PyObject *obj, Tick when, Priority priority = Default_Pri);
+    ~PythonEvent();
+
+    virtual void process();
+};
+
+#endif // __PYTHON_SWIG_PYEVENT_HH__