release/src/router/libncurses/test/hashtest.c

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  28 /*
  29  * hashtest.c -- test hash mapping
  30  *
  31  * Generate timing statistics for vertical-motion optimization.
  32  *
  33  * $Id: hashtest.c,v 1.31 2010/11/13 23:43:15 tom Exp $
  34  */
  35
  36 #include <test.priv.h>
  37
  38 #define LO_CHAR ' '
  39 #define HI_CHAR '~'
  40
  41 static bool continuous = FALSE;
  42 static bool reverse_loops = FALSE;
  43 static bool single_step = FALSE;
  44 static bool extend_corner = FALSE;
  45 static int foot_lines = 0;
  46 static int head_lines = 0;
  47
  48 static void
  49 cleanup(void)
  50 {
  51     move(LINES - 1, 0);
  52     clrtoeol();
  53     refresh();
  54     endwin();
  55 }
  56
  57 static RETSIGTYPE
  58 finish(int sig GCC_UNUSED)
  59 {
  60     cleanup();
  61     ExitProgram(EXIT_FAILURE);
  62 }
  63
  64 static void
  65 genlines(int base)
  66 {
  67     int i, j;
  68
  69 #if USE_TRACE
  70     if (base == 'a')
  71         Trace(("Resetting screen"));
  72     else
  73         Trace(("Painting `%c' screen", base));
  74 #endif
  75
  76     /* Do this so writes to lower-right corner don't cause a spurious
  77      * scrolling operation.  This _shouldn't_ break the scrolling
  78      * optimization, since that's computed in the refresh() call.
  79      */
  80     scrollok(stdscr, FALSE);
  81
  82     move(0, 0);
  83     for (i = 0; i < head_lines; i++)
  84         for (j = 0; j < COLS; j++)
  85             addch(UChar((j % 8 == 0) ? ('A' + j / 8) : '-'));
  86
  87     move(head_lines, 0);
  88     for (i = head_lines; i < LINES - foot_lines; i++) {
  89         chtype c = (chtype) ((base - LO_CHAR + i) % (HI_CHAR - LO_CHAR + 1)
  90                              + LO_CHAR);
  91         int hi = (extend_corner || (i < LINES - 1)) ? COLS : COLS - 1;
  92         for (j = 0; j < hi; j++)
  93             addch(c);
  94     }
  95
  96     for (i = LINES - foot_lines; i < LINES; i++) {
  97         move(i, 0);
  98         for (j = 0; j < (extend_corner ? COLS : COLS - 1); j++)
  99             addch(UChar((j % 8 == 0) ? ('A' + j / 8) : '-'));
 100     }
 101
 102     scrollok(stdscr, TRUE);
 103     if (single_step) {
 104         move(LINES - 1, 0);
 105         getch();
 106     } else
 107         refresh();
 108 }
 109
 110 static void
 111 one_cycle(int ch)
 112 {
 113     if (continuous) {
 114         genlines(ch);
 115     } else if (ch != 'a') {
 116         genlines('a');
 117         genlines(ch);
 118     }
 119 }
 120
 121 static void
 122 run_test(bool optimized GCC_UNUSED)
 123 {
 124     char ch;
 125     int lo = continuous ? LO_CHAR : 'a' - LINES;
 126     int hi = continuous ? HI_CHAR : 'a' + LINES;
 127
 128     if (lo < LO_CHAR)
 129         lo = LO_CHAR;
 130     if (hi > HI_CHAR)
 131         hi = HI_CHAR;
 132
 133 #if defined(TRACE) || defined(NCURSES_TEST)
 134     if (optimized) {
 135         Trace(("With hash mapping"));
 136         _nc_optimize_enable |= OPTIMIZE_HASHMAP;
 137     } else {
 138         Trace(("Without hash mapping"));
 139         _nc_optimize_enable &= ~OPTIMIZE_HASHMAP;
 140     }
 141 #endif
 142
 143     if (reverse_loops)
 144         for (ch = (char) hi; ch >= lo; ch--)
 145             one_cycle(ch);
 146     else
 147         for (ch = (char) lo; ch <= hi; ch++)
 148             one_cycle(ch);
 149 }
 150
 151 static void
 152 usage(void)
 153 {
 154     static const char *const tbl[] =
 155     {
 156         "Usage: hashtest [options]"
 157         ,""
 158         ,"Options:"
 159         ,"  -c      continuous (don't reset between refresh's)"
 160         ,"  -f num  leave 'num' lines constant for footer"
 161         ,"  -h num  leave 'num' lines constant for header"
 162         ,"  -l num  repeat test 'num' times"
 163         ,"  -n      test the normal optimizer"
 164         ,"  -o      test the hashed optimizer"
 165         ,"  -r      reverse the loops"
 166         ,"  -s      single-step"
 167         ,"  -x      assume lower-right corner extension"
 168     };
 169     size_t n;
 170
 171     for (n = 0; n < SIZEOF(tbl); n++)
 172         fprintf(stderr, "%s\n", tbl[n]);
 173     ExitProgram(EXIT_FAILURE);
 174 }
 175
 176 int
 177 main(int argc, char *argv[])
 178 {
 179     int c;
 180     int test_loops = 1;
 181     int test_normal = FALSE;
 182     int test_optimize = FALSE;
 183
 184     setlocale(LC_ALL, "");
 185
 186     while ((c = getopt(argc, argv, "cf:h:l:norsx")) != -1) {
 187         switch (c) {
 188         case 'c':
 189             continuous = TRUE;
 190             break;
 191         case 'f':
 192             foot_lines = atoi(optarg);
 193             break;
 194         case 'h':
 195             head_lines = atoi(optarg);
 196             break;
 197         case 'l':
 198             test_loops = atoi(optarg);
 199             assert(test_loops >= 0);
 200             break;
 201         case 'n':
 202             test_normal = TRUE;
 203             break;
 204         case 'o':
 205             test_optimize = TRUE;
 206             break;
 207         case 'r':
 208             reverse_loops = TRUE;
 209             break;
 210         case 's':
 211             single_step = TRUE;
 212             break;
 213         case 'x':
 214             extend_corner = TRUE;
 215             break;
 216         default:
 217             usage();
 218         }
 219     }
 220     if (!test_normal && !test_optimize) {
 221         test_normal = TRUE;
 222         test_optimize = TRUE;
 223     }
 224 #if USE_TRACE
 225     trace(TRACE_TIMES);
 226 #endif
 227
 228     CATCHALL(finish);           /* arrange interrupts to terminate */
 229
 230     (void) initscr();           /* initialize the curses library */
 231     keypad(stdscr, TRUE);       /* enable keyboard mapping */
 232     (void) nonl();              /* tell curses not to do NL->CR/NL on output */
 233     (void) cbreak();            /* take input chars one at a time, no wait for \n */
 234     (void) noecho();            /* don't echo input */
 235     scrollok(stdscr, TRUE);
 236
 237     while (test_loops-- > 0) {
 238         if (test_normal)
 239             run_test(FALSE);
 240         if (test_optimize)
 241             run_test(TRUE);
 242     }
 243
 244     cleanup();                  /* we're done */
 245     ExitProgram(EXIT_SUCCESS);
 246 }
 247 /* hashtest.c ends here */