ncurses 5.6 - patch 20080203

[ncurses.git] / test / worm.c

diff --git a/test/worm.c b/test/worm.c
index 142982aef22158049768d429ca65de614e3636b3..23b0ef4ae85c70792dae3b0ee12d7298942bbba5 100644 (file)
--- a/test/worm.c
+++ b/test/worm.c
@@ -1,3 +1,30 @@
+/****************************************************************************
+ * Copyright (c) 1998-2007,2008 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/

 /*
 
         @@@        @@@    @@@@@@@@@@     @@@@@@@@@@@    @@@@@@@@@@@@
 /*
 
         @@@        @@@    @@@@@@@@@@     @@@@@@@@@@@    @@@@@@@@@@@@


@@ -34,18 +61,24 @@ 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 1.31 2000/09/02 18:41:01 tom Exp $
+  $Id: worm.c,v 1.55 2008/01/26 22:07:57 tom Exp $

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

-#include <signal.h>
+#ifdef USE_PTHREADS
+#include <pthread.h>
+#endif
+
+WANT_USE_WINDOW();
+
+#define MAX_WORMS      40
+#define MAX_LENGTH     1024

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

-#define MAXWORMS       (sizeof(flavor)/sizeof(chtype))

 static const short xinc[] =
 {
     1, 1, 1, 0, -1, -1, -1, 0
 static const short xinc[] =
 {
     1, 1, 1, 0, -1, -1, -1, 0


@@ -53,17 +86,31 @@ 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[MAX_WORMS];
+static short **refs;
+static int last_x, last_y;

 
 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

-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 {


@@ -156,8 +203,7 @@ static const struct options {
 static void
 cleanup(void)
 {
 static void
 cleanup(void)
 {

-    standend();
-    refresh();
+    USING_WINDOW(stdscr, wrefresh);

     curs_set(1);
     endwin();
 }
     curs_set(1);
     endwin();
 }


@@ -166,7 +212,7 @@ static RETSIGTYPE
 onsig(int sig GCC_UNUSED)
 {
     cleanup();
 onsig(int sig GCC_UNUSED)
 {
     cleanup();

-    exit(EXIT_FAILURE);
+    ExitProgram(EXIT_FAILURE);

 }
 
 static float
 }
 
 static float


@@ -176,17 +222,188 @@ 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;
+
+    bool done = FALSE;
+
+    if ((x = w->xpos[h = w->head]) < 0) {
+       wmove(win, y = w->ypos[h] = last_y, x = w->xpos[h] = 0);
+       waddch(win, w->attrs);
+       refs[y][x]++;
+    } else {
+       y = w->ypos[h];
+    }
+
+    if (x > last_x)
+       x = last_x;
+    if (y > last_y)
+       y = last_y;
+
+    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 == last_y
+                ? lowleft
+                : left))
+          : (x == last_x
+             ? (y == 0
+                ? upright
+                : (y == last_y
+                   ? lowright
+                   : right))
+             : (y == 0
+                ? upper
+                : (y == last_y
+                   ? 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;
+}
+
+#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;
+}
+
+static int
+get_input(void)
+{
+    int ch;
+    ch = USING_WINDOW(stdscr, wgetch);
+    return ch;
+}
+
+#ifdef KEY_RESIZE
+static int
+update_refs(WINDOW *win)
+{
+    int x, y;
+
+    (void) win;
+    if (last_x != COLS - 1) {
+       for (y = 0; y <= last_y; y++) {
+           refs[y] = typeRealloc(short, COLS, refs[y]);
+           for (x = last_x + 1; x < COLS; x++)
+               refs[y][x] = 0;
+       }
+       last_x = COLS - 1;
+    }
+    if (last_y != LINES - 1) {
+       for (y = LINES; y <= last_y; y++)
+           free(refs[y]);
+       refs = typeRealloc(short *, LINES, refs);
+       for (y = last_y + 1; y < LINES; y++) {
+           refs[y] = typeMalloc(short, COLS);
+           for (x = 0; x < COLS; x++)
+               refs[y][x] = 0;
+       }
+       last_y = LINES - 1;
+    }
+    return OK;
+}
+#endif
+

 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;
     short *ip;

-    int last, bottom;
+    bool done = FALSE;
+
+    setlocale(LC_ALL, "");

 
     for (x = 1; x < argc; x++) {
        char *p;
 
     for (x = 1; x < argc; x++) {
        char *p;


@@ -200,26 +417,23 @@ main(int argc, char *argv[])
        case 'l':
            if (++x == argc)
                goto usage;
        case 'l':
            if (++x == argc)
                goto usage;

-           if ((length = atoi(argv[x])) < 2 || length > 1024) {
+           if ((length = atoi(argv[x])) < 2 || length > MAX_LENGTH) {

                fprintf(stderr, "%s: Invalid length\n", *argv);
                fprintf(stderr, "%s: Invalid length\n", *argv);

-               return EXIT_FAILURE;
+               ExitProgram(EXIT_FAILURE);

            }
            break;
        case 'n':
            if (++x == argc)
                goto usage;
            }
            break;
        case 'n':
            if (++x == argc)
                goto usage;

-           if ((number = atoi(argv[x])) < 1 || number > 40) {
+           if ((number = atoi(argv[x])) < 1 || number > MAX_WORMS) {

                fprintf(stderr, "%s: Invalid number of worms\n", *argv);
                fprintf(stderr, "%s: Invalid number of worms\n", *argv);

-               return EXIT_FAILURE;
+               ExitProgram(EXIT_FAILURE);

            }
            break;
        case 't':
            trail = '.';
            break;
 #ifdef TRACE
            }
            break;
        case 't':
            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]);


@@ -231,8 +445,8 @@ main(int argc, char *argv[])
        default:
          usage:
            fprintf(stderr,
        default:
          usage:
            fprintf(stderr,

-               "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
-           return EXIT_FAILURE;
+                   "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
+           ExitProgram(EXIT_FAILURE);

        }
     }
 
        }
     }
 


@@ -244,8 +458,8 @@ main(int argc, char *argv[])
 
     curs_set(0);
 
 
     curs_set(0);
 

-    bottom = LINES - 1;
-    last = COLS - 1;
+    last_y = LINES - 1;
+    last_x = COLS - 1;

 
 #ifdef A_COLOR
     if (has_colors()) {
 
 #ifdef A_COLOR
     if (has_colors()) {


@@ -270,31 +484,34 @@ 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[last_y][last_x] = 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);
        if (!(ip = typeMalloc(short, (length + 1)))) {
            fprintf(stderr, "%s: out of memory\n", *argv);

-           return EXIT_FAILURE;
+           ExitProgram(EXIT_FAILURE);

        }
        w->xpos = ip;
        for (x = length; --x >= 0;)
            *ip++ = -1;
        if (!(ip = typeMalloc(short, (length + 1)))) {
            fprintf(stderr, "%s: out of memory\n", *argv);
        }
        w->xpos = ip;
        for (x = length; --x >= 0;)
            *ip++ = -1;
        if (!(ip = typeMalloc(short, (length + 1)))) {
            fprintf(stderr, "%s: out of memory\n", *argv);

-           return EXIT_FAILURE;
+           ExitProgram(EXIT_FAILURE);

        }
        w->ypos = ip;
        for (y = length; --y >= 0;)
        }
        w->ypos = ip;
        for (y = length; --y >= 0;)


@@ -303,7 +520,7 @@ main(int argc, char *argv[])
     if (field) {
        const char *p;
        p = field;
     if (field) {
        const char *p;
        p = field;

-       for (y = bottom; --y >= 0;) {
+       for (y = last_y; --y >= 0;) {

            for (x = COLS; --x >= 0;) {
                addch((chtype) (*p++));
                if (!*p)
            for (x = COLS; --x >= 0;) {
                addch((chtype) (*p++));
                if (!*p)


@@ -311,118 +528,72 @@ main(int argc, char *argv[])
            }
        }
     }
            }
        }
     }

-    napms(10);
-    refresh();
-#ifndef TRACE
+    USING_WINDOW(stdscr, wrefresh);

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

-#endif

 
 

-    for (;;) {
-#ifdef TRACE
-       if (trace_start || trace_end) {
-           if (generation == trace_start) {
-               trace(TRACE_CALLS);
-               getch();
-           } else if (generation == trace_end) {
-               trace(0);
-               getch();
-           }
+    while (!done) {
+       int ch;

 
 

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

 
 

-           generation++;
-       }
-#else
-       int ch;
+               generation++;
+           }
+#endif

 
 

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

 #ifdef KEY_RESIZE
            if (ch == KEY_RESIZE) {
 #ifdef KEY_RESIZE
            if (ch == KEY_RESIZE) {

-               if (last != COLS - 1) {
-                   for (y = 0; y <= bottom; y++) {
-                       ref[y] = typeRealloc(short, COLS, ref[y]);
-                       for (x = last + 1; x < COLS; x++)
-                           ref[y][x] = 0;
-                   }
-                   last = COLS - 1;
-               }
-               if (bottom != LINES - 1) {
-                   for (y = LINES; y <= bottom; y++)
-                       free(ref[y]);
-                   ref = typeRealloc(short *, LINES, ref);
-                   for (y = bottom + 1; y < LINES; y++) {
-                       ref[y] = typeMalloc(short, COLS);
-                       for (x = 0; x < COLS; x++)
-                           ref[y][x] = 0;
-                   }
-                   bottom = LINES - 1;
-               }
+               USING_WINDOW(stdscr, update_refs);

            }
 #endif
            }
 #endif

+

            /*
             * Make it simple to put this into single-step mode, or resume
            /*
             * Make it simple to put this into single-step mode, or resume

-            * normal operation -TD
+            * normal operation -T.Dickey

             */
            if (ch == 'q') {
             */
            if (ch == 'q') {

-               cleanup();
-               return (EXIT_SUCCESS);
+               quitting = TRUE;
+               done = TRUE;
+               continue;

            } else if (ch == 's') {
                nodelay(stdscr, FALSE);
            } else if (ch == ' ') {
                nodelay(stdscr, TRUE);
            }
        }
            } else if (ch == 's') {
                nodelay(stdscr, FALSE);
            } else if (ch == ' ') {
                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 % MAXWORMS]);
-               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:
-               cleanup();
-               return EXIT_SUCCESS;
-           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 % MAXWORMS]);
-           ref[w->ypos[h] = y][w->xpos[h] = x]++;
-       }
+       done = draw_all_worms();

        napms(10);
        napms(10);

-       refresh();
+       USING_WINDOW(stdscr, wrefresh);
+    }
+
+    cleanup();
+#ifdef NO_LEAKS
+    for (y = 0; y < LINES; y++) {
+       free(refs[y]);
+    }
+    free(refs);
+    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);

 }
 }