types/string.c

   1 /*
   2  * string.c
   3  *
   4  * BabelTrace - String Type Converter
   5  *
   6  * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  */
  18
  19 #include <babeltrace/compiler.h>
  20 #include <babeltrace/align.h>
  21 #include <babeltrace/format.h>
  22
  23 static
  24 struct definition *_string_definition_new(struct declaration *declaration,
  25                                 struct definition_scope *parent_scope,
  26                                 GQuark field_name, int index);
  27 static
  28 void _string_definition_free(struct definition *definition);
  29
  30 static
  31 void _string_declaration_free(struct declaration *declaration)
  32 {
  33         struct declaration_string *string_declaration =
  34                 container_of(declaration, struct declaration_string, p);
  35         g_free(string_declaration);
  36 }
  37
  38 struct declaration_string *
  39         string_declaration_new(enum ctf_string_encoding encoding)
  40 {
  41         struct declaration_string *string_declaration;
  42
  43         string_declaration = g_new(struct declaration_string, 1);
  44         string_declaration->p.id = CTF_TYPE_STRING;
  45         string_declaration->p.alignment = CHAR_BIT;
  46         string_declaration->p.declaration_free = _string_declaration_free;
  47         string_declaration->p.definition_new = _string_definition_new;
  48         string_declaration->p.definition_free = _string_definition_free;
  49         string_declaration->p.ref = 1;
  50         string_declaration->encoding = encoding;
  51         return string_declaration;
  52 }
  53
  54 static
  55 struct definition *
  56         _string_definition_new(struct declaration *declaration,
  57                                struct definition_scope *parent_scope,
  58                                GQuark field_name, int index)
  59 {
  60         struct declaration_string *string_declaration =
  61                 container_of(declaration, struct declaration_string, p);
  62         struct definition_string *string;
  63
  64         string = g_new(struct definition_string, 1);
  65         declaration_ref(&string_declaration->p);
  66         string->p.declaration = declaration;
  67         string->declaration = string_declaration;
  68         string->p.ref = 1;
  69         string->p.index = index;
  70         string->p.name = field_name;
  71         string->p.path = new_definition_path(parent_scope, field_name);
  72         string->value = NULL;
  73         string->len = 0;
  74         string->alloc_len = 0;
  75         return &string->p;
  76 }
  77
  78 static
  79 void _string_definition_free(struct definition *definition)
  80 {
  81         struct definition_string *string =
  82                 container_of(definition, struct definition_string, p);
  83
  84         declaration_unref(string->p.declaration);
  85         g_free(string->value);
  86         g_free(string);
  87 }