lily/profile.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "profile.hh"
  21
  22 void note_property_access (SCM *table, SCM sym);
  23
  24 SCM context_property_lookup_table;
  25 SCM grob_property_lookup_table;
  26 SCM prob_property_lookup_table;
  27
  28 LY_DEFINE (ly_property_lookup_stats, "ly:property-lookup-stats",
  29            1, 0, 0, (SCM sym),
  30            "Return hash table with a property access corresponding to"
  31            " @var{sym}.  Choices are @code{prob}, @code{grob}, and"
  32            " @code{context}.")
  33 {
  34   if (sym == ly_symbol2scm ("context"))
  35     return context_property_lookup_table ? context_property_lookup_table
  36       : scm_c_make_hash_table (1);
  37   if (sym == ly_symbol2scm ("prob"))
  38     return prob_property_lookup_table ? prob_property_lookup_table
  39       : scm_c_make_hash_table (1);
  40   if (sym == ly_symbol2scm ("grob"))
  41     return grob_property_lookup_table ? grob_property_lookup_table
  42       : scm_c_make_hash_table (1);
  43   return scm_c_make_hash_table (1);
  44 }
  45
  46
  47 void
  48 note_property_access (SCM *table, SCM sym)
  49 {
  50   /*
  51     Statistics: which properties are looked up?
  52   */
  53   if (!*table)
  54     *table = scm_permanent_object (scm_c_make_hash_table (259));
  55
  56   SCM hashhandle = scm_hashq_get_handle (*table, sym);
  57   if (hashhandle == SCM_BOOL_F)
  58     {
  59       scm_hashq_set_x (*table, sym, scm_from_int (0));
  60       hashhandle = scm_hashq_get_handle (*table, sym);
  61     }
  62
  63   int count = scm_to_int (scm_cdr (hashhandle)) + 1;
  64   scm_set_cdr_x (hashhandle, scm_from_int (count));
  65 }