formats/ctf/types/enum.c

   1 /*
   2  * Common Trace Format
   3  *
   4  * Enumeration mapping strings (quarks) from/to integers.
   5  *
   6  * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
   7  *
   8  * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  26  * SOFTWARE.
  27  */
  28
  29 #include <babeltrace/ctf/types.h>
  30 #include <inttypes.h>
  31 #include <stdint.h>
  32 #include <glib.h>
  33
  34 int ctf_enum_read(struct stream_pos *ppos, struct definition *definition)
  35 {
  36         struct definition_enum *enum_definition =
  37                 container_of(definition, struct definition_enum, p);
  38         const struct declaration_enum *enum_declaration =
  39                 enum_definition->declaration;
  40         struct definition_integer *integer_definition =
  41                 enum_definition->integer;
  42         const struct declaration_integer *integer_declaration =
  43                 integer_definition->declaration;
  44         GArray *qs;
  45         int ret;
  46
  47         ret = ctf_integer_read(ppos, &integer_definition->p);
  48         if (ret)
  49                 return ret;
  50         if (!integer_declaration->signedness) {
  51                 qs = enum_uint_to_quark_set(enum_declaration,
  52                         integer_definition->value._unsigned);
  53                 if (!qs) {
  54                         fprintf(stderr, "[warning] Unknown value %" PRIu64 " in enum.\n",
  55                                 integer_definition->value._unsigned);
  56                 }
  57         } else {
  58                 qs = enum_int_to_quark_set(enum_declaration,
  59                         integer_definition->value._signed);
  60                 if (!qs) {
  61                         fprintf(stderr, "[warning] Unknown value %" PRId64 " in enum.\n",
  62                                 integer_definition->value._signed);
  63                 }
  64         }
  65         /* unref previous quark set */
  66         if (enum_definition->value)
  67                 g_array_unref(enum_definition->value);
  68         enum_definition->value = qs;
  69         return 0;
  70 }
  71
  72 int ctf_enum_write(struct stream_pos *pos, struct definition *definition)
  73 {
  74         struct definition_enum *enum_definition =
  75                 container_of(definition, struct definition_enum, p);
  76         struct definition_integer *integer_definition =
  77                 enum_definition->integer;
  78
  79         return ctf_integer_write(pos, &integer_definition->p);
  80 }