event.py revision 9983:2cce74fe359e 
1# Copyright (c) 2006 The Regents of The University of Michigan
2# Copyright (c) 2013 Advanced Micro Devices, Inc.
3# Copyright (c) 2013 Mark D. Hill and David A. Wood
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions are
8# met: redistributions of source code must retain the above copyright
9# notice, this list of conditions and the following disclaimer;
10# redistributions in binary form must reproduce the above copyright
11# notice, this list of conditions and the following disclaimer in the
12# documentation and/or other materials provided with the distribution;
13# neither the name of the copyright holders nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28#
29# Authors: Nathan Binkert
30
31import m5
32import internal.event
33
34from internal.event import PythonEvent, GlobalSimLoopExitEvent as SimExit
35
36mainq = None
37
38def create(obj, priority=None):
39    if priority is None:
40        priority = Event.Default_Pri
41    return PythonEvent(obj, priority)
42
43
44# As a reminder, priorities found in sim/eventq.hh are stuck into the
45# Event class by swig
46class Event(PythonEvent):
47    def __init__(self, priority=None):
48        if priority is None:
49            priority = Event.Default_Pri
50        super(Event, self).__init__(self, priority)
51
52class ProgressEvent(Event):
53    def __init__(self, eventq, period):
54        super(ProgressEvent, self).__init__()
55        self.period = int(period)
56        self.eventq = eventq
57        self.eventq.schedule(self, m5.curTick() + self.period)
58
59    def __call__(self):
60        print "Progress! Time now %fs" % (m5.curTick()/1e12)
61        self.eventq.schedule(self, m5.curTick() + self.period)
62
63def getEventQueue(index):
64    return internal.event.getEventQueue(index)
65
66def setEventQueue(eventq):
67    internal.event.curEventQueue(eventq)
68
69__all__ = [ 'create', 'Event', 'ProgressEvent', 'SimExit', 'mainq' ]
70