113373Sgabeblack@google.com/* 213373Sgabeblack@google.com * Copyright 2018 Google, Inc. 313373Sgabeblack@google.com * 413373Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 513373Sgabeblack@google.com * modification, are permitted provided that the following conditions are 613373Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 713373Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 813373Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 913373Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1013373Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1113373Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1213373Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1313373Sgabeblack@google.com * this software without specific prior written permission. 1413373Sgabeblack@google.com * 1513373Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1613373Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1713373Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1813373Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1913373Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2013373Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2113373Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2213373Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2313373Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2413373Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2513373Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2613373Sgabeblack@google.com * 2713373Sgabeblack@google.com * Authors: Gabe Black 2813373Sgabeblack@google.com */ 2913373Sgabeblack@google.com 3013373Sgabeblack@google.com#include "params/Gem5_Feeder.hh" 3113373Sgabeblack@google.com#include "sim/sim_exit.hh" 3213373Sgabeblack@google.com#include "systemc_simple_object/feeder.hh" 3313373Sgabeblack@google.com 3413373Sgabeblack@google.comFeeder::Feeder(Gem5_FeederParams *params) : 3513373Sgabeblack@google.com SimObject(params), printer(params->printer), delay(params->delay), 3613373Sgabeblack@google.com strings(params->strings), index(0), event(this) 3713373Sgabeblack@google.com{ 3813373Sgabeblack@google.com // Bind the printer objects "input" port to our sc_buffer. This will let 3913373Sgabeblack@google.com // us feed it values. If some other object was responsible for the 4013373Sgabeblack@google.com // sc_buffer, we could interact with it directly and not have built it 4113373Sgabeblack@google.com // ourselves. 4213373Sgabeblack@google.com // 4313373Sgabeblack@google.com // Alternatively Printer could define a normal c++ method which we could 4413373Sgabeblack@google.com // call to feed it words without involving any systemc specific classes. 4513373Sgabeblack@google.com printer->input(buf); 4613373Sgabeblack@google.com} 4713373Sgabeblack@google.com 4813373Sgabeblack@google.comvoid 4913373Sgabeblack@google.comFeeder::startup() 5013373Sgabeblack@google.com{ 5113373Sgabeblack@google.com schedule(&event, curTick() + delay); 5213373Sgabeblack@google.com} 5313373Sgabeblack@google.com 5413373Sgabeblack@google.comvoid 5513373Sgabeblack@google.comFeeder::feed() 5613373Sgabeblack@google.com{ 5713373Sgabeblack@google.com if (index >= strings.size()) 5813373Sgabeblack@google.com exitSimLoop("Printed all the words."); 5913373Sgabeblack@google.com else 6013373Sgabeblack@google.com buf.write(strings[index++].c_str()); 6113373Sgabeblack@google.com 6213373Sgabeblack@google.com schedule(&event, curTick() + delay); 6313373Sgabeblack@google.com} 6413373Sgabeblack@google.com 6513373Sgabeblack@google.comFeeder * 6613373Sgabeblack@google.comGem5_FeederParams::create() 6713373Sgabeblack@google.com{ 6813373Sgabeblack@google.com return new Feeder(this); 6913373Sgabeblack@google.com} 70