ncurses 5.6 - patch 20080112

[ncurses.git] / test / worm.c

diff --git a/test/worm.c b/test/worm.c
index 15699625f1016a28be41eaa6aadd4db09a185ab7..172b1dd846f7c681123140d469e1c5534a22adb1 100644 (file)
--- a/test/worm.c
+++ b/test/worm.c
@@ -1,5 +1,5 @@
 /****************************************************************************
 /****************************************************************************

- * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *

  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *


@@ -61,11 +61,15 @@ Options:
   traces will be dumped.  The program stops and waits for one character of
   input at the beginning and end of the interval.
 
   traces will be dumped.  The program stops and waits for one character of
   input at the beginning and end of the interval.
 

-  $Id: worm.c,v 1.41 2006/07/01 22:57:24 tom Exp $
+  $Id: worm.c,v 1.51 2008/01/13 01:03:23 tom Exp $

 */
 
 #include <test.priv.h>
 
 */
 
 #include <test.priv.h>
 

+#ifdef USE_PTHREADS
+#include <pthread.h>
+#endif
+

 static chtype flavor[] =
 {
     'O', '*', '#', '$', '%', '0', '@',
 static chtype flavor[] =
 {
     'O', '*', '#', '$', '%', '0', '@',


@@ -77,17 +81,30 @@ static const short xinc[] =
 {
     -1, 0, 1, 1, 1, 0, -1, -1
 };
 {
     -1, 0, 1, 1, 1, 0, -1, -1
 };

-static struct worm {
-    int orientation, head;
-    short *xpos, *ypos;
-} worm[40];
+
+typedef struct worm {
+    int orientation;
+    int head;
+    short *xpos;
+    short *ypos;
+    chtype attrs;
+#ifdef USE_PTHREADS
+    pthread_t thread;
+#endif
+} WORM;
+
+static unsigned long sequence = 0;
+static bool quitting = FALSE;
+
+static WORM worm[40];
+static short **refs;

 
 static const char *field;
 static int length = 16, number = 3;
 static chtype trail = ' ';
 
 #ifdef TRACE
 
 static const char *field;
 static int length = 16, number = 3;
 static chtype trail = ' ';
 
 #ifdef TRACE

-static int generation, trace_start, trace_end, singlestep;
+static int generation, trace_start, trace_end;

 #endif /* TRACE */
 /* *INDENT-OFF* */
 static const struct options {
 #endif /* TRACE */
 /* *INDENT-OFF* */
 static const struct options {


@@ -200,15 +217,157 @@ ranf(void)
     return ((float) r / 32768.);
 }
 
     return ((float) r / 32768.);
 }
 

+static int
+draw_worm(WINDOW *win, void *data)
+{
+    WORM *w = (WORM *) data;
+    const struct options *op;
+
+    int x;
+    int y;
+    int h;
+
+    int bottom = LINES - 1;
+    int last = COLS - 1;
+
+    bool done = FALSE;
+
+    if ((x = w->xpos[h = w->head]) < 0) {
+       wmove(win, y = w->ypos[h] = bottom, x = w->xpos[h] = 0);
+       waddch(win, w->attrs);
+       refs[y][x]++;
+    } else {
+       y = w->ypos[h];
+    }
+
+    if (x > last)
+       x = last;
+    if (y > bottom)
+       y = bottom;
+
+    if (++h == length)
+       h = 0;
+
+    if (w->xpos[w->head = h] >= 0) {
+       int x1, y1;
+       x1 = w->xpos[h];
+       y1 = w->ypos[h];
+       if (y1 < LINES
+           && x1 < COLS
+           && --refs[y1][x1] == 0) {
+           wmove(win, y1, x1);
+           waddch(win, trail);
+       }
+    }
+
+    op = &(x == 0
+          ? (y == 0
+             ? upleft
+             : (y == bottom
+                ? lowleft
+                : left))
+          : (x == last
+             ? (y == 0
+                ? upright
+                : (y == bottom
+                   ? lowright
+                   : right))
+             : (y == 0
+                ? upper
+                : (y == bottom
+                   ? lower
+                   : normal))))[w->orientation];
+
+    switch (op->nopts) {
+    case 0:
+       done = TRUE;
+       break;
+    case 1:
+       w->orientation = op->opts[0];
+       break;
+    default:
+       w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
+       break;
+    }
+
+    if (!done) {
+       x += xinc[w->orientation];
+       y += yinc[w->orientation];
+       wmove(win, y, x);
+
+       if (y < 0)
+           y = 0;
+       waddch(win, w->attrs);
+
+       w->ypos[h] = y;
+       w->xpos[h] = x;
+       refs[y][x]++;
+    }
+
+    return done;
+}
+
+#if !defined(NCURSES_VERSION_PATCH) || (NCURSES_VERSION_PATCH < 20070915)
+static int
+use_window(WINDOW *win, int (*func) (WINDOW *, void *), void *data)
+{
+    return func(win, data);
+}
+#endif
+
+#ifdef USE_PTHREADS
+static bool
+quit_worm(void)
+{
+    napms(10);                 /* let the other thread(s) have a chance */
+    return quitting;
+}
+
+static void *
+start_worm(void *arg)
+{
+    unsigned long compare = 0;
+    while (!quit_worm()) {
+       while (compare < sequence) {
+           ++compare;
+           use_window(stdscr, draw_worm, arg);
+       }
+    }
+    return NULL;
+}
+#endif
+
+static bool
+draw_all_worms(void)
+{
+    bool done = FALSE;
+    int n;
+    struct worm *w;
+
+#ifdef USE_PTHREADS
+    static bool first = TRUE;
+    if (first) {
+       first = FALSE;
+       for (n = 0, w = &worm[0]; n < number; n++, w++) {
+           int rc;
+           rc = pthread_create(&(w->thread), NULL, start_worm, w);
+       }
+    }
+#else
+    for (n = 0, w = &worm[0]; n < number; n++, w++) {
+       if (use_window(stdscr, draw_worm, w))
+           done = TRUE;
+    }
+#endif
+    return done;
+}
+

 int
 main(int argc, char *argv[])
 {
 int
 main(int argc, char *argv[])
 {

-    short **ref;

     int x, y;
     int n;
     struct worm *w;
     int x, y;
     int n;
     struct worm *w;

-    const struct options *op;
-    int h;

     short *ip;
     int last, bottom;
     bool done = FALSE;
     short *ip;
     int last, bottom;
     bool done = FALSE;


@@ -244,9 +403,6 @@ main(int argc, char *argv[])
            trail = '.';
            break;
 #ifdef TRACE
            trail = '.';
            break;
 #ifdef TRACE

-       case 'S':
-           singlestep = TRUE;
-           break;

        case 'T':
            trace_start = atoi(argv[++x]);
            trace_end = atoi(argv[++x]);
        case 'T':
            trace_start = atoi(argv[++x]);
            trace_end = atoi(argv[++x]);


@@ -297,21 +453,24 @@ main(int argc, char *argv[])
     }
 #endif /* A_COLOR */
 
     }
 #endif /* A_COLOR */
 

-    ref = typeMalloc(short *, LINES);
+    refs = typeMalloc(short *, LINES);

     for (y = 0; y < LINES; y++) {
     for (y = 0; y < LINES; y++) {

-       ref[y] = typeMalloc(short, COLS);
+       refs[y] = typeMalloc(short, COLS);

        for (x = 0; x < COLS; x++) {
        for (x = 0; x < COLS; x++) {

-           ref[y][x] = 0;
+           refs[y][x] = 0;

        }
     }
 
 #ifdef BADCORNER
     /* if addressing the lower right corner doesn't work in your curses */
        }
     }
 
 #ifdef BADCORNER
     /* if addressing the lower right corner doesn't work in your curses */

-    ref[bottom][last] = 1;
+    refs[bottom][last] = 1;

 #endif /* BADCORNER */
 
     for (n = number, w = &worm[0]; --n >= 0; w++) {
 #endif /* BADCORNER */
 
     for (n = number, w = &worm[0]; --n >= 0; w++) {

-       w->orientation = w->head = 0;
+       w->attrs = flavor[n % SIZEOF(flavor)];
+       w->orientation = 0;
+       w->head = 0;
+

        if (!(ip = typeMalloc(short, (length + 1)))) {
            fprintf(stderr, "%s: out of memory\n", *argv);
            ExitProgram(EXIT_FAILURE);
        if (!(ip = typeMalloc(short, (length + 1)))) {
            fprintf(stderr, "%s: out of memory\n", *argv);
            ExitProgram(EXIT_FAILURE);


@@ -338,50 +497,45 @@ main(int argc, char *argv[])
            }
        }
     }
            }
        }
     }

-    napms(10);

     refresh();
     refresh();

-#ifndef TRACE

     nodelay(stdscr, TRUE);
     nodelay(stdscr, TRUE);

-#endif

 
     while (!done) {
 
     while (!done) {

-#ifdef TRACE
-       if (trace_start || trace_end) {
-           if (generation == trace_start) {
-               trace(TRACE_CALLS);
-               getch();
-           } else if (generation == trace_end) {
-               trace(0);
-               getch();
-           }
-
-           if (singlestep && generation > trace_start && generation < trace_end)
-               getch();
-
-           generation++;
-       }
-#else

        int ch;
 
        int ch;
 

+       ++sequence;

        if ((ch = getch()) > 0) {
        if ((ch = getch()) > 0) {

+#ifdef TRACE
+           if (trace_start || trace_end) {
+               if (generation == trace_start) {
+                   trace(TRACE_CALLS);
+                   getch();
+               } else if (generation == trace_end) {
+                   trace(0);
+                   getch();
+               }
+
+               generation++;
+           }
+#endif

 #ifdef KEY_RESIZE
            if (ch == KEY_RESIZE) {
                if (last != COLS - 1) {
                    for (y = 0; y <= bottom; y++) {
 #ifdef KEY_RESIZE
            if (ch == KEY_RESIZE) {
                if (last != COLS - 1) {
                    for (y = 0; y <= bottom; y++) {

-                       ref[y] = typeRealloc(short, COLS, ref[y]);
+                       refs[y] = typeRealloc(short, COLS, refs[y]);

                        for (x = last + 1; x < COLS; x++)
                        for (x = last + 1; x < COLS; x++)

-                           ref[y][x] = 0;
+                           refs[y][x] = 0;

                    }
                    last = COLS - 1;
                }
                if (bottom != LINES - 1) {
                    for (y = LINES; y <= bottom; y++)
                    }
                    last = COLS - 1;
                }
                if (bottom != LINES - 1) {
                    for (y = LINES; y <= bottom; y++)

-                       free(ref[y]);
-                   ref = typeRealloc(short *, LINES, ref);
+                       free(refs[y]);
+                   refs = typeRealloc(short *, LINES, refs);

                    for (y = bottom + 1; y < LINES; y++) {
                    for (y = bottom + 1; y < LINES; y++) {

-                       ref[y] = typeMalloc(short, COLS);
+                       refs[y] = typeMalloc(short, COLS);

                        for (x = 0; x < COLS; x++)
                        for (x = 0; x < COLS; x++)

-                           ref[y][x] = 0;
+                           refs[y][x] = 0;

                    }
                    bottom = LINES - 1;
                }
                    }
                    bottom = LINES - 1;
                }


@@ -392,6 +546,7 @@ main(int argc, char *argv[])
             * normal operation -T.Dickey
             */
            if (ch == 'q') {
             * normal operation -T.Dickey
             */
            if (ch == 'q') {

+               quitting = TRUE;

                done = TRUE;
                continue;
            } else if (ch == 's') {
                done = TRUE;
                continue;
            } else if (ch == 's') {


@@ -400,55 +555,8 @@ main(int argc, char *argv[])
                nodelay(stdscr, TRUE);
            }
        }
                nodelay(stdscr, TRUE);
            }
        }

-#endif /* TRACE */
-
-       for (n = 0, w = &worm[0]; n < number; n++, w++) {
-           if ((x = w->xpos[h = w->head]) < 0) {
-               move(y = w->ypos[h] = bottom, x = w->xpos[h] = 0);
-               addch(flavor[n % SIZEOF(flavor)]);
-               ref[y][x]++;
-           } else {
-               y = w->ypos[h];
-           }
-           if (x > last)
-               x = last;
-           if (y > bottom)
-               y = bottom;
-           if (++h == length)
-               h = 0;
-           if (w->xpos[w->head = h] >= 0) {
-               int x1, y1;
-               x1 = w->xpos[h];
-               y1 = w->ypos[h];
-               if (y1 < LINES
-                   && x1 < COLS
-                   && --ref[y1][x1] == 0) {
-                   move(y1, x1);
-                   addch(trail);
-               }
-           }
-           op = &(x == 0 ? (y == 0 ? upleft : (y == bottom ? lowleft :
-                                               left)) :
-                  (x == last ? (y == 0 ? upright : (y == bottom ? lowright :
-                                                    right)) :
-                   (y == 0 ? upper : (y == bottom ? lower : normal))))[w->orientation];
-           switch (op->nopts) {
-           case 0:
-               done = TRUE;
-               continue;
-           case 1:
-               w->orientation = op->opts[0];
-               break;
-           default:
-               w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
-           }
-           move(y += yinc[w->orientation], x += xinc[w->orientation]);

 
 

-           if (y < 0)
-               y = 0;
-           addch(flavor[n % SIZEOF(flavor)]);
-           ref[w->ypos[h] = y][w->xpos[h] = x]++;
-       }
+       done = draw_all_worms();

        napms(10);
        refresh();
     }
        napms(10);
        refresh();
     }


@@ -456,13 +564,21 @@ main(int argc, char *argv[])
     cleanup();
 #ifdef NO_LEAKS
     for (y = 0; y < LINES; y++) {
     cleanup();
 #ifdef NO_LEAKS
     for (y = 0; y < LINES; y++) {

-       free(ref[y]);
+       free(refs[y]);

     }
     }

-    free(ref);
+    free(refs);

     for (n = number, w = &worm[0]; --n >= 0; w++) {
        free(w->xpos);
        free(w->ypos);
     }
     for (n = number, w = &worm[0]; --n >= 0; w++) {
        free(w->xpos);
        free(w->ypos);
     }

+#endif
+#ifdef USE_PTHREADS
+    /*
+     * Do this just in case one of the threads did not really exit.
+     */
+    for (n = 0; n < number; n++) {
+       pthread_join(worm[n].thread, NULL);
+    }

 #endif
     ExitProgram(EXIT_SUCCESS);
 }
 #endif
     ExitProgram(EXIT_SUCCESS);
 }