Consumer.cc revision 9230:33eb3c8a98b9 
1/*
2 * Copyright (c) 2012 Mark D. Hill and David A. Wood
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "mem/ruby/common/Consumer.hh"
30#include "mem/ruby/common/Global.hh"
31#include "mem/ruby/system/System.hh"
32
33void
34Consumer::scheduleEvent(Time timeDelta)
35{
36    scheduleEventAbsolute(timeDelta + g_system_ptr->getTime());
37}
38
39void
40Consumer::scheduleEventAbsolute(Time timeAbs)
41{
42    Tick evt_time = g_system_ptr->clockPeriod() * timeAbs;
43    if (!alreadyScheduled(evt_time)) {
44        // This wakeup is not redundant
45        ConsumerEvent *evt = new ConsumerEvent(this);
46        assert(timeAbs > g_system_ptr->getTime());
47
48        em->schedule(evt, evt_time);
49        insertScheduledWakeupTime(evt_time);
50    }
51}
52