/****************************************************************************
- * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2016,2017 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 *
July 1995 (esr): worms is now in living color! :-)
-Options:
- -f fill screen with copies of 'WORM' at start.
- -l <n> set worm length
- -n <n> set number of worms
- -t make worms leave droppings
- -T <start> <end> set trace interval
- -S set single-stepping during trace interval
- -N suppress cursor-movement optimization
-
This program makes a good torture-test for the ncurses cursor-optimization
code. You can use -T to set the worm move interval over which movement
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 1.53 2008/01/19 20:56:38 tom Exp $
+ $Id: worm.c,v 1.75 2017/09/08 20:00:50 tom Exp $
*/
#include <test.priv.h>
+#ifndef NCURSES_VERSION
+#undef TRACE
+#endif
+
#ifdef USE_PTHREADS
#include <pthread.h>
#endif
+WANT_USE_WINDOW();
+
+#define MAX_WORMS 40
+#define MAX_LENGTH 1024
+
static chtype flavor[] =
{
'O', '*', '#', '$', '%', '0', '@',
};
-static const short xinc[] =
+static const int xinc[] =
{
1, 1, 1, 0, -1, -1, -1, 0
}, yinc[] =
typedef struct worm {
int orientation;
int head;
- short *xpos;
- short *ypos;
+ int *xpos;
+ int *ypos;
chtype attrs;
#ifdef USE_PTHREADS
pthread_t thread;
static unsigned long sequence = 0;
static bool quitting = FALSE;
-static WORM worm[40];
-static short **refs;
+static WORM worm[MAX_WORMS];
+static int **refs;
+static int last_x, last_y;
static const char *field;
static int length = 16, number = 3;
static chtype trail = ' ';
+static unsigned pending;
#ifdef TRACE
static int generation, trace_start, trace_end;
#endif /* TRACE */
};
/* *INDENT-ON* */
+#ifdef KEY_RESIZE
+static void
+failed(const char *s)
+{
+ perror(s);
+ exit_curses();
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
+
static void
cleanup(void)
{
- standend();
- refresh();
- curs_set(1);
- endwin();
+ USING_WINDOW(stdscr, wrefresh);
+ exit_curses();
}
-static RETSIGTYPE
+static void
onsig(int sig GCC_UNUSED)
{
cleanup();
ExitProgram(EXIT_FAILURE);
}
-static float
+static double
ranf(void)
{
long r = (rand() & 077777);
- return ((float) r / 32768.);
+ return ((double) r / 32768.);
}
static int
{
WORM *w = (WORM *) data;
const struct options *op;
+ unsigned mask = (unsigned) (~(1 << (w - worm)));
+ chtype attrs = w->attrs | ((mask & pending) ? A_REVERSE : 0);
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);
+ wmove(win, y = w->ypos[h] = last_y, x = w->xpos[h] = 0);
+ waddch(win, attrs);
refs[y][x]++;
} else {
y = w->ypos[h];
}
- if (x > last)
- x = last;
- if (y > bottom)
- y = bottom;
+ if (x > last_x)
+ x = last_x;
+ if (y > last_y)
+ y = last_y;
if (++h == length)
h = 0;
op = &(x == 0
? (y == 0
? upleft
- : (y == bottom
+ : (y == last_y
? lowleft
: left))
- : (x == last
+ : (x == last_x
? (y == 0
? upright
- : (y == bottom
+ : (y == last_y
? lowright
: right))
: (y == 0
? upper
- : (y == bottom
+ : (y == last_y
? lower
: normal))))[w->orientation];
w->orientation = op->opts[0];
break;
default:
- w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
+ w->orientation = op->opts[(int) (ranf() * (double) op->nopts)];
break;
}
if (y < 0)
y = 0;
- waddch(win, w->attrs);
+ waddch(win, attrs);
w->ypos[h] = y;
w->xpos[h] = x;
return done;
}
-#if !defined(NCURSES_VERSION_PATCH) || (NCURSES_VERSION_PATCH < 20070915) || !NCURSES_EXT_FUNCS
-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)
+quit_worm(int bitnum)
{
+ pending = (pending | (unsigned) (1 << bitnum));
napms(10); /* let the other thread(s) have a chance */
+ pending = (pending & (unsigned) ~(1 << bitnum));
return quitting;
}
start_worm(void *arg)
{
unsigned long compare = 0;
- while (!quit_worm()) {
+ Trace(("start_worm"));
+ while (!quit_worm((int) (((struct worm *) arg) - worm))) {
while (compare < sequence) {
++compare;
+#if HAVE_USE_WINDOW
use_window(stdscr, draw_worm, arg);
+#else
+ draw_worm(stdscr, arg);
+#endif
}
}
+ Trace(("...start_worm (done)"));
return NULL;
}
#endif
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);
+ (void) 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))
+ if (
+#if HAVE_USE_WINDOW
+ USING_WINDOW2(stdscr, draw_worm, w)
+#else
+ draw_worm(stdscr, w)
+#endif
+ )
done = TRUE;
}
#endif
get_input(void)
{
int ch;
-#ifdef USE_PTHREADS
- ch = use_window(stdscr, (NCURSES_CALLBACK) wgetch, stdscr);
-#else
- ch = getch();
-#endif
+ 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(int, (size_t) COLS, refs[y]);
+ if (!refs[y])
+ failed("update_refs");
+ 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(int *, (size_t) LINES, refs);
+ for (y = last_y + 1; y < LINES; y++) {
+ refs[y] = typeMalloc(int, (size_t) COLS);
+ if (!refs[y])
+ failed("update_refs");
+ for (x = 0; x < COLS; x++)
+ refs[y][x] = 0;
+ }
+ last_y = LINES - 1;
+ }
+ return OK;
+}
+#endif
+
+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: worm [options]"
+ ,""
+ ,"Options:"
+#if HAVE_USE_DEFAULT_COLORS
+ ," -d invoke use_default_colors"
+#endif
+ ," -f fill screen with copies of \"WORM\" at start"
+ ," -l <n> set length of worms"
+ ," -n <n> set number of worms"
+ ," -t leave trail of \".\""
+#ifdef TRACE
+ ," -T <start>,<end> set trace interval"
+ ," -N suppress cursor-movement optimization"
+#endif
+ };
+ size_t n;
+
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+
+ ExitProgram(EXIT_FAILURE);
+}
+
int
main(int argc, char *argv[])
{
+ int ch;
int x, y;
int n;
struct worm *w;
- short *ip;
- int last, bottom;
+ int *ip;
bool done = FALSE;
+ int max_refs;
+#if HAVE_USE_DEFAULT_COLORS
+ bool opt_d = FALSE;
+#endif
setlocale(LC_ALL, "");
- for (x = 1; x < argc; x++) {
- char *p;
- p = argv[x];
- if (*p == '-')
- p++;
- switch (*p) {
+ while ((ch = getopt(argc, argv, "dfl:n:tT:N")) != -1) {
+ switch (ch) {
+#if HAVE_USE_DEFAULT_COLORS
+ case 'd':
+ opt_d = TRUE;
+ break;
+#endif
case 'f':
field = "WORM";
break;
case 'l':
- if (++x == argc)
- goto usage;
- if ((length = atoi(argv[x])) < 2 || length > 1024) {
+ if ((length = atoi(optarg)) < 2 || length > MAX_LENGTH) {
fprintf(stderr, "%s: Invalid length\n", *argv);
- ExitProgram(EXIT_FAILURE);
+ usage();
}
break;
case 'n':
- if (++x == argc)
- goto usage;
- if ((number = atoi(argv[x])) < 1 || number > 40) {
+ if ((number = atoi(optarg)) < 1 || number > MAX_WORMS) {
fprintf(stderr, "%s: Invalid number of worms\n", *argv);
- ExitProgram(EXIT_FAILURE);
+ usage();
}
break;
case 't':
break;
#ifdef TRACE
case 'T':
- trace_start = atoi(argv[++x]);
- trace_end = atoi(argv[++x]);
+ if (sscanf(optarg, "%d,%d", &trace_start, &trace_end) != 2)
+ usage();
break;
case 'N':
_nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
break;
#endif /* TRACE */
default:
- usage:
- fprintf(stderr,
- "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
- ExitProgram(EXIT_FAILURE);
+ usage();
+ /* NOTREACHED */
}
}
+ if (optind < argc)
+ usage();
signal(SIGINT, onsig);
initscr();
curs_set(0);
- bottom = LINES - 1;
- last = COLS - 1;
+ last_y = LINES - 1;
+ last_x = COLS - 1;
#ifdef A_COLOR
if (has_colors()) {
int bg = COLOR_BLACK;
start_color();
#if HAVE_USE_DEFAULT_COLORS
- if (use_default_colors() == OK)
+ if (opt_d && (use_default_colors() == OK))
bg = -1;
#endif
#define SET_COLOR(num, fg) \
- init_pair(num+1, fg, bg); \
- flavor[num] |= COLOR_PAIR(num+1) | A_BOLD
+ init_pair(num+1, (short) fg, (short) bg); \
+ flavor[num] |= (chtype) COLOR_PAIR(num+1) | A_BOLD
SET_COLOR(0, COLOR_GREEN);
SET_COLOR(1, COLOR_RED);
}
#endif /* A_COLOR */
- refs = typeMalloc(short *, LINES);
- for (y = 0; y < LINES; y++) {
- refs[y] = typeMalloc(short, COLS);
+ max_refs = LINES;
+ refs = typeMalloc(int *, (size_t) max_refs);
+ for (y = 0; y < max_refs; y++) {
+ refs[y] = typeMalloc(int, (size_t) COLS);
for (x = 0; x < COLS; x++) {
refs[y][x] = 0;
}
#ifdef BADCORNER
/* if addressing the lower right corner doesn't work in your curses */
- refs[bottom][last] = 1;
+ refs[last_y][last_x] = 1;
#endif /* BADCORNER */
for (n = number, w = &worm[0]; --n >= 0; w++) {
- w->attrs = flavor[n % SIZEOF(flavor)];
+ w->attrs = flavor[(unsigned) n % SIZEOF(flavor)];
w->orientation = 0;
w->head = 0;
- if (!(ip = typeMalloc(short, (length + 1)))) {
+ if (!(ip = typeMalloc(int, (size_t) (length + 1)))) {
fprintf(stderr, "%s: out of memory\n", *argv);
ExitProgram(EXIT_FAILURE);
}
w->xpos = ip;
for (x = length; --x >= 0;)
*ip++ = -1;
- if (!(ip = typeMalloc(short, (length + 1)))) {
+ if (!(ip = typeMalloc(int, (size_t) (length + 1)))) {
fprintf(stderr, "%s: out of memory\n", *argv);
ExitProgram(EXIT_FAILURE);
}
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)
}
}
}
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
nodelay(stdscr, TRUE);
while (!done) {
- int ch;
-
++sequence;
if ((ch = get_input()) > 0) {
#ifdef TRACE
generation++;
}
#endif
+
#ifdef KEY_RESIZE
if (ch == KEY_RESIZE) {
- if (last != COLS - 1) {
- for (y = 0; y <= bottom; y++) {
- refs[y] = typeRealloc(short, COLS, refs[y]);
- for (x = last + 1; x < COLS; x++)
- refs[y][x] = 0;
- }
- last = COLS - 1;
- }
- if (bottom != LINES - 1) {
- for (y = LINES; y <= bottom; y++)
- free(refs[y]);
- refs = typeRealloc(short *, LINES, refs);
- for (y = bottom + 1; y < LINES; y++) {
- refs[y] = typeMalloc(short, COLS);
- for (x = 0; x < COLS; x++)
- refs[y][x] = 0;
- }
- bottom = LINES - 1;
- }
+ USING_WINDOW(stdscr, update_refs);
}
#endif
+
/*
* Make it simple to put this into single-step mode, or resume
* normal operation -T.Dickey
done = draw_all_worms();
napms(10);
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
}
+ Trace(("Cleanup"));
cleanup();
-#ifdef NO_LEAKS
- for (y = 0; y < LINES; y++) {
+#if NO_LEAKS
+ for (y = 0; y < max_refs; y++) {
free(refs[y]);
}
free(refs);
/*
* Do this just in case one of the threads did not really exit.
*/
+ Trace(("join all threads"));
for (n = 0; n < number; n++) {
pthread_join(worm[n].thread, NULL);
}
projects / ncurses.git / blobdiff