+/****************************************************************************
+ * Copyright (c) 1998-2013,2016 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. *
+ ****************************************************************************/
/*
@@@ @@@ @@@@@@@@@@ @@@@@@@@@@@ @@@@@@@@@@@@
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 1.20 1997/05/03 18:38:57 tom Exp $
+ $Id: worm.c,v 1.66 2016/09/17 21:12:30 tom Exp $
*/
#include <test.priv.h>
-#include <term.h> /* for tparm() */
+#ifdef USE_PTHREADS
+#include <pthread.h>
+#endif
-#include <signal.h>
+WANT_USE_WINDOW();
-#define cursor(col,row) move(row,col)
+#define MAX_WORMS 40
+#define MAX_LENGTH 1024
-short *ref[128];
-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
-}, yinc[]={
- -1, 0, 1, 1, 1, 0, -1, -1
+static const int xinc[] =
+{
+ 1, 1, 1, 0, -1, -1, -1, 0
+}, yinc[] =
+{
+ -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;
+ int *xpos;
+ int *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 int **refs;
+static int last_x, last_y;
static const char *field;
-static int length=16, number=3;
-static chtype trail=' ';
+static int length = 16, number = 3;
+static chtype trail = ' ';
+static unsigned pending;
#ifdef TRACE
-int generation, trace_start, trace_end, singlestep;
+static int generation, trace_start, trace_end;
#endif /* TRACE */
+/* *INDENT-OFF* */
static const struct options {
int nopts;
int opts[3];
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } }
};
+/* *INDENT-ON* */
+
+static void
+failed(const char *s)
+{
+ perror(s);
+ endwin();
+ ExitProgram(EXIT_FAILURE);
+}
+
+static void
+cleanup(void)
+{
+ USING_WINDOW(stdscr, wrefresh);
+ curs_set(1);
+ endwin();
+}
+
+static void
+onsig(int sig GCC_UNUSED)
+{
+ cleanup();
+ ExitProgram(EXIT_FAILURE);
+}
+
+static double
+ranf(void)
+{
+ long r = (rand() & 077777);
+ return ((double) r / 32768.);
+}
+
+static int
+draw_worm(WINDOW *win, void *data)
+{
+ 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;
+
+ 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, 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() * (double) op->nopts)];
+ break;
+ }
+
+ if (!done) {
+ x += xinc[w->orientation];
+ y += yinc[w->orientation];
+ wmove(win, y, x);
+
+ if (y < 0)
+ y = 0;
+ waddch(win, attrs);
+
+ w->ypos[h] = y;
+ w->xpos[h] = x;
+ refs[y][x]++;
+ }
+
+ return done;
+}
+
+#ifdef USE_PTHREADS
+static bool
+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;
+}
+
+static void *
+start_worm(void *arg)
+{
+ unsigned long compare = 0;
+ 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
-static RETSIGTYPE onsig(int sig);
-static float ranf(void);
+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
+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(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
main(int argc, char *argv[])
{
-int x, y;
-int n;
-struct worm *w;
-const struct options *op;
-int h;
-short *ip;
-int last, bottom;
-
- for (x=1;x<argc;x++) {
- register char *p;
- p=argv[x];
- if (*p=='-') p++;
- switch (*p) {
- case 'f':
- field="WORM";
- break;
- case 'l':
- if (++x==argc) goto usage;
- if ((length=atoi(argv[x]))<2||length>1024) {
- fprintf(stderr,"%s: Invalid length\n",*argv);
- return EXIT_FAILURE;
- }
- break;
- case 'n':
- if (++x==argc) goto usage;
- if ((number=atoi(argv[x]))<1||number>40) {
- fprintf(stderr,"%s: Invalid number of worms\n",*argv);
- return EXIT_FAILURE;
- }
- break;
- case 't':
- trail='.';
- break;
+ int x, y;
+ int n;
+ struct worm *w;
+ int *ip;
+ bool done = FALSE;
+ int max_refs;
+
+ setlocale(LC_ALL, "");
+
+ for (x = 1; x < argc; x++) {
+ char *p;
+ p = argv[x];
+ if (*p == '-')
+ p++;
+ switch (*p) {
+ case 'f':
+ field = "WORM";
+ break;
+ case 'l':
+ if (++x == argc)
+ goto usage;
+ if ((length = atoi(argv[x])) < 2 || length > MAX_LENGTH) {
+ fprintf(stderr, "%s: Invalid length\n", *argv);
+ ExitProgram(EXIT_FAILURE);
+ }
+ break;
+ case 'n':
+ if (++x == argc)
+ goto usage;
+ if ((number = atoi(argv[x])) < 1 || number > MAX_WORMS) {
+ fprintf(stderr, "%s: Invalid number of worms\n", *argv);
+ ExitProgram(EXIT_FAILURE);
+ }
+ break;
+ case 't':
+ trail = '.';
+ break;
#ifdef TRACE
- case 'S':
- singlestep = TRUE;
- break;
- case 'T':
- trace_start = atoi(argv[++x]);
- trace_end = atoi(argv[++x]);
- break;
- case 'N':
- _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
- break;
+ case 'T':
+ trace_start = atoi(argv[++x]);
+ trace_end = atoi(argv[++x]);
+ 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);
- return EXIT_FAILURE;
- break;
- }
+ default:
+ usage:
+ fprintf(stderr,
+ "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
+ ExitProgram(EXIT_FAILURE);
+ }
}
signal(SIGINT, onsig);
curs_set(0);
- bottom = LINES-1;
- last = COLS-1;
+ last_y = LINES - 1;
+ last_x = COLS - 1;
#ifdef A_COLOR
- if (has_colors())
- {
+ if (has_colors()) {
int bg = COLOR_BLACK;
start_color();
-#ifdef NCURSES_VERSION
+#if HAVE_USE_DEFAULT_COLORS
if (use_default_colors() == OK)
bg = -1;
#endif
-
- init_pair(COLOR_GREEN, COLOR_GREEN, -1);
- init_pair(COLOR_RED, COLOR_RED, -1);
- init_pair(COLOR_CYAN, COLOR_CYAN, -1);
- init_pair(COLOR_WHITE, COLOR_WHITE, -1);
- init_pair(COLOR_MAGENTA, COLOR_MAGENTA, -1);
- init_pair(COLOR_BLUE, COLOR_BLUE, -1);
- init_pair(COLOR_YELLOW, COLOR_YELLOW, -1);
-
- flavor[0] |= COLOR_PAIR(COLOR_GREEN) | A_BOLD;
- flavor[1] |= COLOR_PAIR(COLOR_RED) | A_BOLD;
- flavor[2] |= COLOR_PAIR(COLOR_CYAN) | A_BOLD;
- flavor[3] |= COLOR_PAIR(COLOR_WHITE) | A_BOLD;
- flavor[4] |= COLOR_PAIR(COLOR_MAGENTA) | A_BOLD;
- flavor[5] |= COLOR_PAIR(COLOR_BLUE) | A_BOLD;
- flavor[6] |= COLOR_PAIR(COLOR_YELLOW) | A_BOLD;
+
+#define SET_COLOR(num, fg) \
+ 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);
+ SET_COLOR(2, COLOR_CYAN);
+ SET_COLOR(3, COLOR_WHITE);
+ SET_COLOR(4, COLOR_MAGENTA);
+ SET_COLOR(5, COLOR_BLUE);
+ SET_COLOR(6, COLOR_YELLOW);
}
#endif /* A_COLOR */
- ip=(short *)malloc(LINES*COLS*sizeof (short));
-
- for (n=0;n<LINES;) {
- ref[n++]=ip; ip+=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;
+ }
}
- for (ip=ref[0],n=LINES*COLS;--n>=0;) *ip++=0;
#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++) {
- w->orientation=w->head=0;
- if (!(ip=(short *)malloc((length+1)*sizeof (short)))) {
- fprintf(stderr,"%s: out of memory\n",*argv);
- return EXIT_FAILURE;
- }
- w->xpos=ip;
- for (x=length;--x>=0;) *ip++ = -1;
- if (!(ip=(short *)malloc((length+1)*sizeof (short)))) {
- fprintf(stderr,"%s: out of memory\n",*argv);
- return EXIT_FAILURE;
- }
- w->ypos=ip;
- for (y=length;--y>=0;) *ip++ = -1;
+ for (n = number, w = &worm[0]; --n >= 0; w++) {
+ w->attrs = flavor[(unsigned) n % SIZEOF(flavor)];
+ w->orientation = 0;
+ w->head = 0;
+
+ 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(int, (size_t) (length + 1)))) {
+ fprintf(stderr, "%s: out of memory\n", *argv);
+ ExitProgram(EXIT_FAILURE);
+ }
+ w->ypos = ip;
+ for (y = length; --y >= 0;)
+ *ip++ = -1;
}
if (field) {
- register const char *p;
- p=field;
- for (y=bottom;--y>=0;) {
- for (x=COLS;--x>=0;) {
- addch((chtype)(*p++));
- if (!*p) p=field;
- }
- addch('\n');
- }
+ const char *p;
+ p = field;
+ for (y = last_y; --y >= 0;) {
+ for (x = COLS; --x >= 0;) {
+ addch((chtype) (*p++));
+ if (!*p)
+ p = field;
+ }
+ }
}
- refresh();
+ USING_WINDOW(stdscr, wrefresh);
+ nodelay(stdscr, TRUE);
+
+ while (!done) {
+ int ch;
- for (;;) {
+ ++sequence;
+ if ((ch = get_input()) > 0) {
#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++;
+ if (trace_start || trace_end) {
+ if (generation == trace_start) {
+ trace(TRACE_CALLS);
+ get_input();
+ } else if (generation == trace_end) {
+ trace(0);
+ get_input();
}
-#endif /* TRACE */
- for (n=0,w= &worm[0];n<number;n++,w++) {
- if ((x=w->xpos[h=w->head])<0) {
- cursor(x=w->xpos[h]=0,y=w->ypos[h]=bottom);
- addch(flavor[n % MAXWORMS]);
- ref[y][x]++;
- }
- else y=w->ypos[h];
- if (++h==length) h=0;
- if (w->xpos[w->head=h]>=0) {
- register int x1, y1;
- x1=w->xpos[h]; y1=w->ypos[h];
- if (--ref[y1][x1]==0) {
- cursor(x1,y1); 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:
- refresh();
- curs_set(1);
- endwin();
- return EXIT_SUCCESS;
- case 1:
- w->orientation=op->opts[0];
- break;
- default:
- w->orientation=op->opts[(int)(ranf()*(float)op->nopts)];
- }
- cursor(x+=xinc[w->orientation], y+=yinc[w->orientation]);
-
- if (y < 0 ) y = 0;
- addch(flavor[n % MAXWORMS]);
- ref[w->ypos[h]=y][w->xpos[h]=x]++;
- }
- refresh();
- }
-}
+ generation++;
+ }
+#endif
-static RETSIGTYPE
-onsig(int sig GCC_UNUSED)
-{
- standend();
- refresh();
- curs_set(1);
- endwin();
- exit(EXIT_FAILURE);
-}
+#ifdef KEY_RESIZE
+ if (ch == KEY_RESIZE) {
+ USING_WINDOW(stdscr, update_refs);
+ }
+#endif
-static float
-ranf(void)
-{
-float rv;
-long r = rand();
+ /*
+ * 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') {
+ nodelay(stdscr, FALSE);
+ } else if (ch == ' ') {
+ nodelay(stdscr, TRUE);
+ }
+ }
+
+ done = draw_all_worms();
+ napms(10);
+ USING_WINDOW(stdscr, wrefresh);
+ }
- r &= 077777;
- rv =((float)r/32767.);
- return rv;
+ Trace(("Cleanup"));
+ cleanup();
+#ifdef NO_LEAKS
+ for (y = 0; y < max_refs; 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.
+ */
+ Trace(("join all threads"));
+ for (n = 0; n < number; n++) {
+ pthread_join(worm[n].thread, NULL);
+ }
+#endif
+ ExitProgram(EXIT_SUCCESS);
}
projects / ncurses.git / blobdiff