/****************************************************************************
- * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2012,2013 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 *
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 1.48 2007/09/15 21:42:16 tom Exp $
+ $Id: worm.c,v 1.65 2013/06/22 20:01:41 tom Exp $
*/
#include <test.priv.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 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;
+#endif
} WORM;
-static WORM worm[40];
-static short **refs;
+static unsigned long sequence = 0;
+static bool quitting = FALSE;
+
+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* */
+static void
+failed(const char *s)
+{
+ perror(s);
+ endwin();
+ ExitProgram(EXIT_FAILURE);
+}
+
static void
cleanup(void)
{
- standend();
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
curs_set(1);
endwin();
}
-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)
+#ifdef USE_PTHREADS
+static bool
+quit_worm(int bitnum)
+{
+ pending |= (1 << bitnum);
+ napms(10); /* let the other thread(s) have a chance */
+ pending &= ~(1 << bitnum);
+ return quitting;
+}
+
+static void *
+start_worm(void *arg)
+{
+ unsigned long compare = 0;
+ Trace(("start_worm"));
+ while (!quit_worm(((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
+
+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++) {
+ (void) pthread_create(&(w->thread), NULL, start_worm, w);
+ }
+ }
+#else
+ for (n = 0, w = &worm[0]; n < number; n++, w++) {
+ if (
+#if HAVE_USE_WINDOW
+ USING_WINDOW2(stdscr, draw_worm, w)
+#else
+ draw_worm(stdscr, w)
+#endif
+ )
+ done = TRUE;
+ }
+#endif
+ return done;
+}
+
static int
-use_window(WINDOW *win, int (*func)(WINDOW *, void *), void *data)
+get_input(void)
{
- return func(win, data);
+ 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(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
int x, y;
int n;
struct worm *w;
- short *ip;
- int last, bottom;
+ int *ip;
bool done = FALSE;
+ int max_refs;
setlocale(LC_ALL, "");
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);
ExitProgram(EXIT_FAILURE);
}
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);
ExitProgram(EXIT_FAILURE);
}
curs_set(0);
- bottom = LINES - 1;
- last = COLS - 1;
+ last_y = LINES - 1;
+ last_x = COLS - 1;
#ifdef A_COLOR
if (has_colors()) {
#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)
}
}
}
- napms(10);
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
nodelay(stdscr, TRUE);
while (!done) {
int ch;
- if ((ch = getch()) > 0) {
+ ++sequence;
+ if ((ch = get_input()) > 0) {
#ifdef TRACE
if (trace_start || trace_end) {
if (generation == trace_start) {
trace(TRACE_CALLS);
- getch();
+ get_input();
} else if (generation == trace_end) {
trace(0);
- getch();
+ get_input();
}
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
*/
if (ch == 'q') {
+ quitting = TRUE;
done = TRUE;
continue;
} else if (ch == 's') {
}
}
- for (n = 0, w = &worm[0]; n < number; n++, w++) {
- if (use_window(stdscr, draw_worm, w))
- done = TRUE;
- }
+ done = draw_all_worms();
napms(10);
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
}
+ Trace(("Cleanup"));
cleanup();
#ifdef NO_LEAKS
- for (y = 0; y < LINES; y++) {
+ for (y = 0; y < max_refs; y++) {
free(refs[y]);
}
free(refs);
free(w->xpos);
free(w->ypos);
}
+#endif
+#ifdef USE_PTHREADS
+ /*
+ * 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);
+ }
#endif
ExitProgram(EXIT_SUCCESS);
}
projects / ncurses.git / blobdiff