+++ /dev/null
-/*
- * Copyright (c) 2003-2005 The BISON Project
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-package peersim.cdsim;
-
-import peersim.config.*;
-import peersim.core.*;
-import peersim.util.RandPermutation;
-
-/**
-* Control to run a cycle of the cycle driven simulation.
-* This does not need to be explicitly configured (although you can do it for
-* hacking purposes).
-*/
-public class FullNextCycle implements Control {
-
-
-// ============== fields ===============================================
-// =====================================================================
-
-
-/**
-* The type of the getPair function. This parameter is of historic interest and
-* was needed in a publication we wrote. You don't need to care about this.
-* But if you wanna know: if set to "rand", then in a cycle the simulator
-* does not simply iterate through the nodes, but instead picks a random one
-* N times, where N is the network size.
-* @config
-*/
-private static final String PAR_GETPAIR = "getpair";
-
-/**
-* Shuffle iteration order if set. Not set by default. If set, then nodes are
-* iterated in a random order. However, in the network the nodes actually
-* stay in the order they originally were. The price for leaving the
-* network untouched is memory: we need to store the permutation we use
-* to iterate the network.
-* @config
-*/
-private static final String PAR_SHUFFLE = "shuffle";
-
-// --------------------------------------------------------------------
-
-protected final boolean getpair_rand;
-
-protected final boolean shuffle;
-
-/** Holds the protocol schedulers of this simulation */
-protected Scheduler[] protSchedules = null;
-
-/** The random permutation to use if config par {@value #PAR_SHUFFLE} is set. */
-protected RandPermutation rperm = new RandPermutation( CDState.r );
-
-// =============== initialization ======================================
-// =====================================================================
-
-/**
-* Reads config parameters and {@link Scheduler}s.
-*/
-public FullNextCycle(String prefix) {
-
- getpair_rand = Configuration.contains(prefix+"."+PAR_GETPAIR);
- shuffle = Configuration.contains(prefix+"."+PAR_SHUFFLE);
-
- // load protocol schedulers
- String[] names = Configuration.getNames(Node.PAR_PROT);
- protSchedules = new Scheduler[names.length];
- for(int i=0; i<names.length; ++i)
- {
- protSchedules[i] = new Scheduler(names[i]);
- }
-}
-
-// =============== methods =============================================
-// =====================================================================
-
-/**
- * Execute all the {@link CDProtocol}s on all nodes that are up.
- * If the node goes down as a result of the execution of a protocol, then
- * the rest of the protocols on that node are not executed and we move on
- * to the next node.
- * It sets the {@link CDState} appropriately.
- * @return always false
- */
-public boolean execute() {
-
- final int cycle=CDState.getCycle();
- if( shuffle ) rperm.reset( Network.size() );
- for(int j=0; j<Network.size(); ++j)
- {
- Node node = null;
- if( getpair_rand )
- node = Network.get(CDState.r.nextInt(Network.size()));
- else if( shuffle )
- node = Network.get(rperm.next());
- else
- node = Network.get(j);
- if( !node.isUp() ) continue;
- CDState.setNode(node);
- CDState.setCycleT(j);
- final int len = node.protocolSize();
- for(int k=0; k<len; ++k)
- {
- // Check if the protocol should be executed, given the
- // associated scheduler.
- if (!protSchedules[k].active(cycle))
- continue;
-
- CDState.setPid(k);
- Protocol protocol = node.getProtocol(k);
- if( protocol instanceof CDProtocol )
- {
- ((CDProtocol)protocol).nextCycle(node, k);
- if( !node.isUp() ) break;
- }
- }
- }
-
- return false;
-}
-
-}
