1/*
2 * Copyright 2018 Google, Inc.
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: Gabe Black
28 */
29
30#include "params/Gem5_Feeder.hh"
31#include "sim/sim_exit.hh"
32#include "systemc_simple_object/feeder.hh"
33
34Feeder::Feeder(Gem5_FeederParams *params) :
35    SimObject(params), printer(params->printer), delay(params->delay),
36    strings(params->strings), index(0), event(this)
37{
38    // Bind the printer objects "input" port to our sc_buffer. This will let
39    // us feed it values. If some other object was responsible for the
40    // sc_buffer, we could interact with it directly and not have built it
41    // ourselves.
42    //
43    // Alternatively Printer could define a normal c++ method which we could
44    // call to feed it words without involving any systemc specific classes.
45    printer->input(buf);
46}
47
48void
49Feeder::startup()
50{
51    schedule(&event, curTick() + delay);
52}
53
54void
55Feeder::feed()
56{
57    if (index >= strings.size())
58        exitSimLoop("Printed all the words.");
59    else
60        buf.write(strings[index++].c_str());
61
62    schedule(&event, curTick() + delay);
63}
64
65Feeder *
66Gem5_FeederParams::create()
67{
68    return new Feeder(this);
69}
70