pmc/main.cc
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sun, 27 Sep 2009 10:56:49 +0200
changeset 107 244356bc3a20
parent 77 49e0babccb23
child 129 d82830a449a9
permissions -rw-r--r--
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/main.cc
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 * Copyright (C) 2008 Markus Broeker
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 */
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#include <surface.hpp>
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#include <rectangle.hpp>
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#include <cube.hpp>
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#include <cstdio>
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#include <cstdlib>
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#ifndef STEP
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#define STEP 1
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#endif
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#define MAX 3
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using namespace algebra;
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int main (int argc, char **argv)
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{
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    Surface *surface;
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    SDL_Event event;
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    Drawable *d[MAX];
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    int height;
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    if (argc != 2) {
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        fprintf (stderr, "Usage: %s <HEIGHT>\n", argv[0]);
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        height = 250;
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    } else
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        height = atoi (argv[1]);
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    if ((height < 10) || (height >= 360))
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        height = 200;
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    Vector p1 (0, 0);
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    Vector p2 (height, 0);
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    Vector p3 (height + 100, height + 100);
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    Vector p4 (100, height + 100);
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    surface = new Surface (1024, 768, 32);
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    SDL_WM_SetCaption ("Pimp my Cube", NULL);
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    d[0] = new Rectangle (surface, p1, p2, p3, p4);
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    d[1] = new Cube (surface);
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    d[2] = new Cube (surface, p1, p2, p3, p4, height);
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    bool running = true;
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    int i, x, y;
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    x = y = 0;
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    d[1]->move (Vector (3 * height, 25));
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    d[2]->move (Vector (290, 0));
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    while (running) {
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        SDL_PollEvent (&event);
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        if (event.type == SDL_QUIT)
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            running = false;
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        if (event.type == SDL_KEYDOWN) {
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            surface->setColor (Surface::BLACK);
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            for (i = 0; i < MAX; i++)
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                d[i]->show ();
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            surface->setColor (Surface::GREEN);
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            switch (event.key.keysym.sym) {
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            case SDLK_ESCAPE:
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                running = false;
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                break;
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            case SDLK_UP:
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                for (i = 0; i < MAX; i++)
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                    d[i]->move ((Vector (x, y - STEP)));
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                break;
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            case SDLK_DOWN:
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                for (i = 0; i < MAX; i++)
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                    d[i]->move ((Vector (x, y + STEP)));
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                break;
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            case SDLK_LEFT:
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                for (i = 0; i < MAX; i++)
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                    d[i]->move ((Vector (x - STEP, y)));
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                break;
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            case SDLK_RIGHT:
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                for (i = 0; i < MAX; i++)
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                    d[i]->move ((Vector (x + STEP, y)));
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                break;
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            case SDLK_RETURN:
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                fprintf (stderr, "Objects remaining: %d\n", surface->getInstances ());
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                break;
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            default:
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                break;
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            }
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            for (i = 0; i < MAX; i++) {
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                d[i]->show ();
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            }
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            surface->flip ();
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        }
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    }
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    for (i = 0; i < MAX; i++)
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        delete d[i];
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    delete surface;
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    /*
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     * the remaining objects will be removed on exit
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     */
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    fprintf (stderr, "Objects remaining on exit: %d\n", refCounter);
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    return EXIT_SUCCESS;
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}