release/src/router/libncurses/ncurses/trace/trace_tries.c

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  28
  29 /****************************************************************************
  30  *  Author: Thomas E. Dickey 1999                                           *
  31  ****************************************************************************/
  32 /*
  33  *      trace_tries.c - Tracing/Debugging buffers (keycode tries-trees)
  34  */
  35
  36 #include <curses.priv.h>
  37
  38 MODULE_ID("$Id: trace_tries.c,v 1.17 2012/10/27 20:50:50 tom Exp $")
  39
  40 #ifdef TRACE
  41 #define my_buffer _nc_globals.tracetry_buf
  42 #define my_length _nc_globals.tracetry_used
  43
  44 static void
  45 recur_tries(TRIES * tree, unsigned level)
  46 {
  47     if (level > my_length) {
  48         my_length = (level + 1) * 4;
  49         my_buffer = (unsigned char *) _nc_doalloc(my_buffer, my_length);
  50     }
  51
  52     if (my_buffer != 0) {
  53         while (tree != 0) {
  54             if ((my_buffer[level] = tree->ch) == 0)
  55                 my_buffer[level] = 128;
  56             my_buffer[level + 1] = 0;
  57             if (tree->value != 0) {
  58                 _tracef("%5d: %s (%s)", tree->value,
  59                         _nc_visbuf((char *) my_buffer), keyname(tree->value));
  60             }
  61             if (tree->child)
  62                 recur_tries(tree->child, level + 1);
  63             tree = tree->sibling;
  64         }
  65     }
  66 }
  67
  68 NCURSES_EXPORT(void)
  69 _nc_trace_tries(TRIES * tree)
  70 {
  71     if ((my_buffer = typeMalloc(unsigned char, my_length = 80)) != 0) {
  72         _tracef("BEGIN tries %p", (void *) tree);
  73         recur_tries(tree, 0);
  74         _tracef(". . . tries %p", (void *) tree);
  75         free(my_buffer);
  76     }
  77 }
  78
  79 #else
  80 EMPTY_MODULE(_nc_empty_trace_tries)
  81 #endif