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@@ -1,382 +0,0 @@
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-package protocols;
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-
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-import java.math.BigInteger;
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-import java.util.Arrays;
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-
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-import communication.Communication;
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-import crypto.Crypto;
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-import exceptions.AccessException;
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-import exceptions.NoSuchPartyException;
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-import oram.Forest;
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-import oram.Global;
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-import oram.Metadata;
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-import oram.Tree;
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-import oram.Tuple;
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-import protocols.precomputation.PreRetrieve;
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-import protocols.struct.OutAccess;
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-import protocols.struct.OutRetrieve;
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-import protocols.struct.Party;
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-import protocols.struct.PreData;
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-import util.Bandwidth;
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-import util.P;
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-import util.StopWatch;
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-import util.Timer;
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-import util.Util;
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-
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-public class Retrieve extends Protocol {
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-
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- Communication[] cons1;
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- Communication[] cons2;
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-
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- public Retrieve(Communication con1, Communication con2) {
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- super(con1, con2);
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- }
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-
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- public void setCons(Communication[] a, Communication[] b) {
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- cons1 = a;
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- cons2 = b;
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- }
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-
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- public void runE(PreData[] predata, Tree OTi, byte[] Ni, byte[] Nip1_pr, int h, Timer timer) {
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-
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- Access access = new Access(con1, con2);
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- Reshuffle reshuffle = new Reshuffle(con1, con2);
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- PostProcessT postprocesst = new PostProcessT(con1, con2);
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- UpdateRoot updateroot = new UpdateRoot(con1, con2);
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- Eviction eviction = new Eviction(con1, con2);
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-
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- OutAccess outaccess = access.runE(predata[0], OTi, Ni, Nip1_pr, timer);
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- Tuple[] path = reshuffle.runE(predata[0], outaccess.E_P, OTi.getTreeIndex() == 0, timer);
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- Tuple Ti = postprocesst.runE(predata[0], outaccess.E_Ti, OTi.getTreeIndex() == h - 1, timer);
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- Tuple[] root = Arrays.copyOfRange(path, 0, OTi.getStashSize());
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- root = updateroot.runE(predata[0], OTi.getTreeIndex() == 0, outaccess.Li, root, Ti, timer);
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- System.arraycopy(root, 0, path, 0, root.length);
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- eviction.runE(predata[0], OTi.getTreeIndex() == 0, outaccess.Li,
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- OTi.getTreeIndex() == 0 ? new Tuple[] { Ti } : path, OTi, timer);
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-
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-
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- OutAccess outaccess2 = access.runE2(OTi, timer);
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- Tuple[] path2 = outaccess2.E_P;
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- Tuple Ti2 = outaccess2.E_Ti;
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- Tuple[] root2 = Arrays.copyOfRange(path2, 0, OTi.getStashSize());
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- root2 = updateroot.runE(predata[1], OTi.getTreeIndex() == 0, outaccess2.Li, root2, Ti2, timer);
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- System.arraycopy(root2, 0, path2, 0, root2.length);
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- eviction.runE(predata[1], OTi.getTreeIndex() == 0, outaccess2.Li,
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- OTi.getTreeIndex() == 0 ? new Tuple[] { Ti2 } : path2, OTi, timer);
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- }
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-
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- public void runD(PreData predata[], Tree OTi, byte[] Ni, byte[] Nip1_pr, Timer timer) {
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-
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- Access access = new Access(con1, con2);
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- Reshuffle reshuffle = new Reshuffle(con1, con2);
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- PostProcessT postprocesst = new PostProcessT(con1, con2);
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- UpdateRoot updateroot = new UpdateRoot(con1, con2);
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- Eviction eviction = new Eviction(con1, con2);
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-
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- byte[] Li = access.runD(predata[0], OTi, Ni, Nip1_pr, timer);
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- reshuffle.runD();
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- postprocesst.runD();
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- updateroot.runD(predata[0], OTi.getTreeIndex() == 0, Li, OTi.getW(), timer);
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- eviction.runD(predata[0], OTi.getTreeIndex() == 0, Li, OTi, timer);
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-
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-
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- byte[] Li2 = access.runD2(OTi, timer);
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- updateroot.runD(predata[1], OTi.getTreeIndex() == 0, Li2, OTi.getW(), timer);
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- eviction.runD(predata[1], OTi.getTreeIndex() == 0, Li2, OTi, timer);
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- }
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-
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- public OutAccess runC(PreData[] predata, Metadata md, int ti, byte[] Li, Timer timer) {
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-
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- Access access = new Access(con1, con2);
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- Reshuffle reshuffle = new Reshuffle(con1, con2);
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- PostProcessT postprocesst = new PostProcessT(con1, con2);
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- UpdateRoot updateroot = new UpdateRoot(con1, con2);
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- Eviction eviction = new Eviction(con1, con2);
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-
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- OutAccess outaccess = access.runC(md, ti, Li, timer);
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- Tuple[] path = reshuffle.runC(predata[0], outaccess.C_P, ti == 0, timer);
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- Tuple Ti = postprocesst.runC(predata[0], outaccess.C_Ti, Li, outaccess.C_Lip1, outaccess.C_j2,
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- ti == md.getNumTrees() - 1, timer);
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- Tuple[] root = Arrays.copyOfRange(path, 0, md.getStashSizeOfTree(ti));
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- root = updateroot.runC(predata[0], ti == 0, root, Ti, timer);
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- System.arraycopy(root, 0, path, 0, root.length);
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- eviction.runC(predata[0], ti == 0, ti == 0 ? new Tuple[] { Ti } : path, md.getLBitsOfTree(ti) + 1,
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- md.getStashSizeOfTree(ti), md.getW(), timer);
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-
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-
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- byte[] Li2 = Util.nextBytes(md.getLBytesOfTree(ti), Crypto.sr);
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- OutAccess outaccess2 = access.runC2(md, ti, Li2, timer);
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- Tuple[] path2 = outaccess2.C_P;
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- Tuple Ti2 = outaccess2.C_Ti;
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- Tuple[] root2 = Arrays.copyOfRange(path2, 0, md.getStashSizeOfTree(ti));
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- root2 = updateroot.runC(predata[1], ti == 0, root2, Ti2, timer);
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- System.arraycopy(root2, 0, path2, 0, root2.length);
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- eviction.runC(predata[1], ti == 0, ti == 0 ? new Tuple[] { Ti2 } : path2, md.getLBitsOfTree(ti) + 1,
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- md.getStashSizeOfTree(ti), md.getW(), timer);
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-
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- return outaccess;
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- }
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-
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- public Pipeline pipelineE(PreData[] predata, Tree OTi, byte[] Ni, byte[] Nip1_pr, int h, Timer[] timer) {
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- Access access = new Access(con1, con2);
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- OutAccess outaccess = access.runE(predata[0], OTi, Ni, Nip1_pr, timer[0]);
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-
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- int ti = OTi.getTreeIndex();
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- Pipeline pipeline = new Pipeline(cons1[ti + 1], cons2[ti + 1], Party.Eddie, predata, OTi, h, timer[ti + 1],
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- null, ti, outaccess.Li, outaccess);
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- pipeline.start();
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-
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- return pipeline;
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- }
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-
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- public Pipeline pipelineD(PreData predata[], Tree OTi, byte[] Ni, byte[] Nip1_pr, Timer[] timer) {
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- Access access = new Access(con1, con2);
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- byte[] Li = access.runD(predata[0], OTi, Ni, Nip1_pr, timer[0]);
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-
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- int ti = OTi.getTreeIndex();
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- Pipeline pipeline = new Pipeline(cons1[ti + 1], cons2[ti + 1], Party.Debbie, predata, OTi, 0, timer[ti + 1],
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- null, ti, Li, null);
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- pipeline.start();
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-
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- return pipeline;
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- }
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-
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- public OutRetrieve pipelineC(PreData[] predata, Metadata md, int ti, byte[] Li, Timer[] timer) {
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- Access access = new Access(con1, con2);
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- OutAccess outaccess = access.runC(md, ti, Li, timer[0]);
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-
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- Pipeline pipeline = new Pipeline(cons1[ti + 1], cons2[ti + 1], Party.Charlie, predata, null, 0, timer[ti + 1],
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- md, ti, Li, outaccess);
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- pipeline.start();
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-
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- return new OutRetrieve(outaccess, pipeline);
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- }
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-
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-
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- @Override
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- public void run(Party party, Metadata md, Forest forest) {
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- if (Global.pipeline)
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- System.out.println("Pipeline Mode is On");
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- if (Global.cheat)
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- System.out.println("Cheat Mode is On");
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-
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- int records = 30;
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- int reset = 5;
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- int repeat = 10;
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-
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- int tau = md.getTau();
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- int numTrees = md.getNumTrees();
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- long numInsert = md.getNumInsertRecords();
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- int addrBits = md.getAddrBits();
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-
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- int numTimer = Global.pipeline ? numTrees + 1 : 1;
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- Timer[] timer = new Timer[numTimer];
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- for (int i = 0; i < numTimer; i++)
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- timer[i] = new Timer();
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-
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- StopWatch ete_off = new StopWatch("ETE_offline");
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- StopWatch ete_on = new StopWatch("ETE_online");
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-
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- long[] gates = new long[2];
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-
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- Pipeline[] threads = new Pipeline[numTrees];
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-
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- sanityCheck();
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- System.out.println();
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-
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- for (int i = 0; i < records; i++) {
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- long N = Global.cheat ? 0 : Util.nextLong(numInsert, Crypto.sr);
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-
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- for (int j = 0; j < repeat; j++) {
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- int cycleIndex = i * repeat + j;
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- if (cycleIndex == reset * repeat) {
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- for (int k = 0; k < timer.length; k++)
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- timer[k].reset();
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- ete_on.reset();
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- ete_off.reset();
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- }
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- if (cycleIndex == 1) {
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- for (int k = 0; k < cons1.length; k++) {
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- cons1[k].bandSwitch = false;
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- cons2[k].bandSwitch = false;
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- }
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- }
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-
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- System.out.println("Test: " + i + " " + j);
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- System.out.println("N=" + BigInteger.valueOf(N).toString(2));
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-
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- System.out.print("Precomputation... ");
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-
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- PreData[][] predata = new PreData[numTrees][2];
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- PreRetrieve preretrieve = new PreRetrieve(con1, con2);
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- for (int ti = 0; ti < numTrees; ti++) {
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- predata[ti][0] = new PreData();
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- predata[ti][1] = new PreData();
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-
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- if (party == Party.Eddie) {
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- ete_off.start();
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- preretrieve.runE(predata[ti], md, ti, timer[0]);
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- ete_off.stop();
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-
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- } else if (party == Party.Debbie) {
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- ete_off.start();
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- long[] cnt = preretrieve.runD(predata[ti], md, ti, ti == 0 ? null : predata[ti - 1][0],
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- timer[0]);
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- ete_off.stop();
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-
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- if (cycleIndex == 0) {
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- gates[0] += cnt[0];
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- gates[1] += cnt[1];
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- }
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-
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- } else if (party == Party.Charlie) {
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- ete_off.start();
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- preretrieve.runC(predata[ti], md, ti, ti == 0 ? null : predata[ti - 1][0], timer[0]);
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- ete_off.stop();
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-
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- } else {
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- throw new NoSuchPartyException(party + "");
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- }
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- }
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-
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- sanityCheck();
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- System.out.println("done!");
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-
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- byte[] Li = new byte[0];
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- for (int ti = 0; ti < numTrees; ti++) {
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- long Ni_value = Util.getSubBits(N, addrBits, addrBits - md.getNBitsOfTree(ti));
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- long Nip1_pr_value = Util.getSubBits(N, addrBits - md.getNBitsOfTree(ti),
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- Math.max(addrBits - md.getNBitsOfTree(ti) - tau, 0));
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- byte[] Ni = Util.longToBytes(Ni_value, md.getNBytesOfTree(ti));
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- byte[] Nip1_pr = Util.longToBytes(Nip1_pr_value, (tau + 7) / 8);
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-
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- if (party == Party.Eddie) {
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- Tree OTi = forest.getTree(ti);
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-
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- byte[] sE_Ni = Util.nextBytes(Ni.length, Crypto.sr);
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- byte[] sD_Ni = Util.xor(Ni, sE_Ni);
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- con1.write(sD_Ni);
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-
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- byte[] sE_Nip1_pr = Util.nextBytes(Nip1_pr.length, Crypto.sr);
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- byte[] sD_Nip1_pr = Util.xor(Nip1_pr, sE_Nip1_pr);
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- con1.write(sD_Nip1_pr);
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-
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- if (!Global.pipeline) {
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- ete_on.start();
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- runE(predata[ti], OTi, sE_Ni, sE_Nip1_pr, numTrees, timer[0]);
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- ete_on.stop();
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- } else {
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- if (ti == 0)
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- ete_on.start();
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- threads[ti] = pipelineE(predata[ti], OTi, sE_Ni, sE_Nip1_pr, numTrees, timer);
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- }
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-
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- if (ti == numTrees - 1)
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- con2.write(N);
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-
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- } else if (party == Party.Debbie) {
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- Tree OTi = forest.getTree(ti);
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-
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- byte[] sD_Ni = con1.read();
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- byte[] sD_Nip1_pr = con1.read();
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-
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- if (!Global.pipeline) {
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- ete_on.start();
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- runD(predata[ti], OTi, sD_Ni, sD_Nip1_pr, timer[0]);
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- ete_on.stop();
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- } else {
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- if (ti == 0)
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- ete_on.start();
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- threads[ti] = pipelineD(predata[ti], OTi, sD_Ni, sD_Nip1_pr, timer);
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- }
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-
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- } else if (party == Party.Charlie) {
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- int lBits = md.getLBitsOfTree(ti);
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- System.out.println("L" + ti + "="
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- + Util.addZeros(Util.getSubBits(new BigInteger(1, Li), lBits, 0).toString(2), lBits));
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-
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- OutAccess outaccess = null;
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- if (!Global.pipeline) {
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- ete_on.start();
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- outaccess = runC(predata[ti], md, ti, Li, timer[0]);
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- ete_on.stop();
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- } else {
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- if (ti == 0)
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- ete_on.start();
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- OutRetrieve outretrieve = pipelineC(predata[ti], md, ti, Li, timer);
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- outaccess = outretrieve.outaccess;
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- threads[ti] = outretrieve.pipeline;
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- }
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-
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- Li = outaccess.C_Lip1;
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-
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- if (ti == numTrees - 1) {
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- N = con1.readLong();
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- long data = new BigInteger(1, outaccess.C_Ti.getA()).longValue();
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- if (N == data) {
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- System.out.println("Access passed");
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- System.out.println();
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- } else {
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- throw new AccessException("Access failed");
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- }
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- }
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-
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- } else {
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- throw new NoSuchPartyException(party + "");
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- }
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- }
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-
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- if (Global.pipeline) {
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- for (int ti = 0; ti < numTrees; ti++) {
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- try {
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- threads[ti].join();
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- } catch (InterruptedException e) {
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- e.printStackTrace();
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- }
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- }
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- ete_on.stop();
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- }
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- }
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- }
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- System.out.println();
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-
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- Timer sum = new Timer();
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- for (int i = 0; i < timer.length; i++)
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- sum = sum.add(timer[i]);
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- sum.noPrePrint();
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- System.out.println();
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-
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- StopWatch comEnc = new StopWatch("CE_online_comp");
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- for (int i = 0; i < cons1.length; i++)
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- comEnc = comEnc.add(cons1[i].comEnc.add(cons2[i].comEnc));
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- System.out.println(comEnc.noPreToMS());
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- System.out.println();
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-
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- if (Global.pipeline)
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- ete_on.elapsedCPU = 0;
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- System.out.println(ete_on.noPreToMS());
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- System.out.println(ete_off.noPreToMS());
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- System.out.println();
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-
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- Bandwidth[] bandwidth = new Bandwidth[P.size];
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|
|
- for (int i = 0; i < P.size; i++) {
|
|
|
- bandwidth[i] = new Bandwidth(P.names[i]);
|
|
|
- for (int j = 0; j < cons1.length; j++)
|
|
|
- bandwidth[i] = bandwidth[i].add(cons1[j].bandwidth[i].add(cons2[j].bandwidth[i]));
|
|
|
- System.out.println(bandwidth[i].noPreToString());
|
|
|
- }
|
|
|
- System.out.println();
|
|
|
-
|
|
|
- System.out.println(gates[0]);
|
|
|
- System.out.println(gates[1]);
|
|
|
- System.out.println();
|
|
|
-
|
|
|
- sanityCheck();
|
|
|
- }
|
|
|
-
|
|
|
- @Override
|
|
|
- public void run(Party party, Metadata md, Forest[] forest) {
|
|
|
-
|
|
|
-
|
|
|
- }
|
|
|
-}
|