pmc/cube.cc
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sun, 27 Sep 2009 10:56:49 +0200
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Pipes and COPY-ON-WRITE In this example, every forked process gets its own copy of the countervariable i through copy-on-write. committer: Markus Bröker <mbroeker@largo.homelinux.org>
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/**
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 * pmc/cube.cc
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 * Copyright (C) 2008 Markus Broeker
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 */
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#include <cube.hpp>
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#include <cstdio>
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using namespace algebra;
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Cube::Cube (Surface * s)
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{
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    surface = s;
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    name = "Cube";
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    height = 25;
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    P[0] = new Vector (0, 0);
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    P[1] = new Vector (100, 0);
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    P[2] = new Vector (100, 100);
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    P[3] = new Vector (0, 100);
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    P[4] = new Vector (25, 25);
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    P[5] = new Vector (125, 25);
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    P[6] = new Vector (125, 125);
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    P[7] = new Vector (25, 125);
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    refCounter++;
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}
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Cube::Cube (Surface * s, Vector & p1, Vector & p2, Vector & p3, Vector & p4, int h)
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{
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    surface = s;
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    name = "Cube";
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    height = h;
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    Vector location (h / 4, h / 4);
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    P[0] = new Vector (p1);
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    P[1] = new Vector (p2);
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    P[2] = new Vector (p3);
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    P[3] = new Vector (p4);
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    for (int i = 0; i < 4; i++) {
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        P[4 + i] = new Vector ();
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        *P[4 + i] = *P[i] + location;
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    }
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    refCounter++;
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}
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Cube::Cube (Surface * s, Vector p[4], int h)
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{
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    surface = s;
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    name = "Cube";
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    height = h;
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    Vector location (h / 4, h / 4);
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    for (int i = 0; i < 4; i++) {
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        P[i] = new Vector (p[i]);
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        P[4 + i] = new Vector (*P[i]);
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        *P[4 + i] = *P[i] + location;
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    }
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    refCounter++;
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}
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Cube::Cube (const Cube & copy)
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{
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    fprintf (stderr, "Copy Constructor in Cube disabled...\n");
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}
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Cube::~Cube ()
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{
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    for (int i = 0; i < 8; i++) {
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#ifdef DEBUG
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        fprintf (stderr, "Removing P[%d]: ", i);
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#endif
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        delete P[i];
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    }
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}
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void Cube::move (Vector location)
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{
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    for (int i = 0; i < 8; i++) {
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        *P[i] = *P[i] + location;
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    }
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}
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void Cube::show ()
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{
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    surface->drawLine (P[0]->X (), P[0]->Y (), P[1]->X (), P[1]->Y ());
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    surface->drawLine (P[3]->X (), P[3]->Y (), P[2]->X (), P[2]->Y ());
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    surface->drawLine (P[2]->X (), P[2]->Y (), P[1]->X (), P[1]->Y ());
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    surface->drawLine (P[3]->X (), P[3]->Y (), P[0]->X (), P[0]->Y ());
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    surface->drawLine (P[4]->X (), P[4]->Y (), P[5]->X (), P[5]->Y ());
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    surface->drawLine (P[7]->X (), P[7]->Y (), P[6]->X (), P[6]->Y ());
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    surface->drawLine (P[7]->X (), P[7]->Y (), P[4]->X (), P[4]->Y ());
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    surface->drawLine (P[6]->X (), P[6]->Y (), P[5]->X (), P[5]->Y ());
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    surface->drawLine (P[0]->X (), P[0]->Y (), P[4]->X (), P[4]->Y ());
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    surface->drawLine (P[1]->X (), P[1]->Y (), P[5]->X (), P[5]->Y ());
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    surface->drawLine (P[2]->X (), P[2]->Y (), P[6]->X (), P[6]->Y ());
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    surface->drawLine (P[3]->X (), P[3]->Y (), P[7]->X (), P[7]->Y ());
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}