From 9ea0417aefab549fa47bc9fe9a42d9bdad4ee353 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Sun, 12 Mar 2006 17:02:30 +0000
Subject: [PATCH] mm: Add a `quiet' flag to suppress normal thinking noise.

---
 mm.c | 74 +++++++++++++++++++++++++++++++++++++++++---------------------------
 1 file changed, 45 insertions(+), 29 deletions(-)

diff --git a/mm.c b/mm.c
index df68992..3048108 100644
--- a/mm.c
+++ b/mm.c
@@ -174,6 +174,8 @@ static void rate_free(ratectx *r) { xfree(r->v); DESTROY(r); }
 
 typedef struct cpc {
   mm m;					/* Game parameters */
+  unsigned f;				/* Various flags */
+#define CPCF_QUIET 1u			/*   Don't produce lots of output */
   dig *s; /* n^k * k */			/* Remaining guesses */
   size_t ns;				/* Number of remaining guesses */
   dig *bg; /* k */			/* Current best guess */
@@ -313,19 +315,25 @@ static void all_guesses(dig **ss, unsigned k, unsigned n,
   }
 }
 
-#define THINK(what, how) do {						\
-  clock_t _t0, _t1;							\
-  fputs(what "...", stdout);						\
-  fflush(stdout);							\
-  _t0 = clock();							\
+#define THINK(c, what, how) do {					\
+  clock_t _t0 = 0, _t1;							\
+  if (!(c->f & CPCF_QUIET)) {						\
+    fputs(what "...", stdout);						\
+    fflush(stdout);							\
+    _t0 = clock();							\
+  }									\
   do how while (0);							\
-  _t1 = clock();							\
-  printf(" done (%.2fs)\n", (_t1 - _t0)/(double)CLOCKS_PER_SEC);	\
+  if (!(c->f & CPCF_QUIET)) {						\
+    _t1 = clock();							\
+    printf(" done (%.2fs)\n", (_t1 - _t0)/(double)CLOCKS_PER_SEC);	\
+  }									\
 } while (0)
 
-static cpc *cpc_new(const mm *m)
+static cpc *cpc_new(const mm *m, unsigned f)
 {
   cpc *c = CREATE(cpc);
+
+  c->f = f;
   c->m = *m;
   c->ns = ipow(c->m.n, c->m.k);
   c->s = xmalloc((c->ns + 2) * c->m.k * sizeof(dig));
@@ -334,7 +342,7 @@ static cpc *cpc_new(const mm *m)
   c->x = 0;
   c->v = xmalloc((c->m.k + 1) * (c->m.k + 1) * sizeof(size_t));
   c->r = rate_alloc(m);
-  THINK("Setting up", {
+  THINK(c, "Setting up", {
     dig *ss = c->s; all_guesses(&ss, c->m.k, c->m.n, 0, 0);
   });
   return (c);
@@ -356,27 +364,32 @@ static const dig *cp_guess(void *cc)
   cpc *c = cc;
 
   if (c->ns == 0) {
-    printf("Liar!  All solutions ruled out.\n");
+    if (!(c->f & CPCF_QUIET))
+      printf("Liar!  All solutions ruled out.\n");
     return (0);
   }
   if (c->ns == 1) {
-    fputs("Done!  Solution is ", stdout);
-    print_guess(&c->m, c->s);
-    putchar('\n');
+    if (!(c->f & CPCF_QUIET)) {
+      fputs("Done!  Solution is ", stdout);
+      print_guess(&c->m, c->s);
+      putchar('\n');
+    }
     return (c->s);
   }
-  printf("(Possible solutions remaining = %lu)\n",
-	 (unsigned long)c->ns);
-  if (c->ns < 32) {
-    const dig *s;
-    size_t i;
-    for (i = c->ns, s = c->s; i; i--, s += c->m.k) {
-      printf("  %2lu: ", (unsigned long)(c->ns - i + 1));
-      print_guess(&c->m, s);
-      putchar('\n');
+  if (!(c->f & CPCF_QUIET)) {
+    printf("(Possible solutions remaining = %lu)\n",
+	   (unsigned long)c->ns);
+    if (c->ns < 32) {
+      const dig *s;
+      size_t i;
+      for (i = c->ns, s = c->s; i; i--, s += c->m.k) {
+	printf("  %2lu: ", (unsigned long)(c->ns - i + 1));
+	print_guess(&c->m, s);
+	putchar('\n');
+      }
     }
   }
-  THINK("Pondering", {
+  THINK(c, "Pondering", {
     best_guess(c);
   });
   return (c->bg);
@@ -385,10 +398,13 @@ static const dig *cp_guess(void *cc)
 static void cp_update(void *cc, const dig *g, unsigned b, unsigned w)
 {
   cpc *c = cc;
-  fputs("My guess = ", stdout);
-  print_guess(&c->m, g);
-  printf("; rating = %u black, %u white\n", b, w);
-  THINK("Filtering", {
+
+  if (!(c->f & CPCF_QUIET)) {
+    fputs("My guess = ", stdout);
+    print_guess(&c->m, g);
+    printf("; rating = %u black, %u white\n", b, w);
+  }
+  THINK(c, "Filtering", {
     filter_guesses(c, g, b, w);
   });
 }
@@ -455,7 +471,7 @@ typedef struct spc {
 static spc *spc_new(const mm *m)
 {
   spc *s = CREATE(spc);
-  s->c = cpc_new(m);
+  s->c = cpc_new(m, 0);
   s->h = hpc_new(m);
   s->i = 0;
   return (s);
@@ -588,7 +604,7 @@ int main(int argc, char *argv[])
       hpc_free(hh);
     } break;
     case 0: {
-      cpc *cc = cpc_new(&m);
+      cpc *cc = cpc_new(&m, 0);
       if (rr) 
 	n = play(&m, ratefn, rr, cp_guess, cp_update, cc);
       else
-- 
2.11.0