formats/ctf/types/enum.c

   1 /*
   2  * Common Trace Format
   3  *
   4  * Enumeration mapping strings (quarks) from/to integers.
   5  *
   6  * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include <babeltrace/ctf/types.h>
  24 #include <stdint.h>
  25 #include <glib.h>
  26
  27 GQuark ctf_enum_read(struct stream_pos *pos,
  28                      const struct type_class_enum *src)
  29 {
  30         struct type_class_integer *int_class = &src->p;
  31
  32         if (!int_class->signedness) {
  33                 uint64_t v;
  34
  35                 v = ctf_uint_read(pos, int_class);
  36                 return enum_uint_to_quark(src, v);
  37         } else {
  38                 int64_t v;
  39
  40                 v = fsrc->ctf_int_read(pos, int_class);
  41                 return enum_int_to_quark(src, v);
  42         }
  43 }
  44
  45 size_t ctf_enum_write(struct stream_pos *pos,
  46                       const struct type_class_enum *dest,
  47                       GQuark q)
  48 {
  49         struct type_class_integer *int_class = &dest->p;
  50
  51         if (!int_class->signedness) {
  52                 uint64_t v;
  53
  54                 v = enum_quark_to_uint(dest, q);
  55                 return ctf_uint_write(pos, int_class, v);
  56         } else {
  57                 int64_t v;
  58
  59                 v = enum_quark_to_int(dest, q);
  60                 return ctf_int_write(pos, int_class, v);
  61         }
  62 }