event.py revision 5738:6ea35903c420 
1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
29import m5
30import internal.event
31
32from internal.event import PythonEvent, SimLoopExitEvent as SimExit
33
34mainq = internal.event.cvar.mainEventQueue
35
36def create(obj, priority=None):
37    if priority is None:
38        priority = internal.event.Event.Default_Pri
39    return PythonEvent(obj, priority)
40
41class Event(PythonEvent):
42    def __init__(self, priority=None):
43        if priority is None:
44            priority = internal.event.Event.Default_Pri
45        super(Event, self).__init__(self, priority)
46
47class ProgressEvent(Event):
48    def __init__(self, eventq, period):
49        super(ProgressEvent, self).__init__()
50        self.period = int(period)
51        self.eventq = eventq
52        self.eventq.schedule(self, m5.curTick() + self.period)
53
54    def __call__(self):
55        print "Progress! Time now %fs" % (m5.curTick()/1e12)
56        self.eventq.schedule(self, m5.curTick() + self.period)
57
58__all__ = [ 'create', 'Event', 'ProgressEvent', 'SimExit', 'mainq' ]
59