namespace the declaration functions
[babeltrace.git] / types / string.c
index f81c1a7e62904ecb8339986181b50cd93d60da58..255388f0dcb7ab5ea433384c89433d68edc4cf0f 100644 (file)
@@ -3,7 +3,9 @@
  *
  * BabelTrace - String Type Converter
  *
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <babeltrace/compiler.h>
 #include <babeltrace/align.h>
 #include <babeltrace/format.h>
+#include <babeltrace/types.h>
 
-void string_copy(struct stream_pos *dest, const struct format *fdest, 
-                struct stream_pos *src, const struct format *fsrc,
-                const struct type_class *type_class)
+static
+struct definition *_string_definition_new(struct declaration *declaration,
+                               struct definition_scope *parent_scope,
+                               GQuark field_name, int index,
+                               const char *root_name);
+static
+void _string_definition_free(struct definition *definition);
+
+static
+void _string_declaration_free(struct declaration *declaration)
 {
-       struct type_class_string *string_class =
-               container_of(type_class, struct type_class_string, p);
+       struct declaration_string *string_declaration =
+               container_of(declaration, struct declaration_string, p);
+       g_free(string_declaration);
+}
 
-       if (fsrc->string_copy == fdest->string_copy) {
-               fsrc->string_copy(dest, src, string_class);
-       } else {
-               unsigned char *tmp = NULL;
+struct declaration_string *
+       bt_string_declaration_new(enum ctf_string_encoding encoding)
+{
+       struct declaration_string *string_declaration;
 
-               fsrc->string_read(&tmp, src, string_class);
-               fdest->string_write(dest, tmp, string_class);
-               fsrc->string_free_temp(tmp);
-       }
+       string_declaration = g_new(struct declaration_string, 1);
+       string_declaration->p.id = CTF_TYPE_STRING;
+       string_declaration->p.alignment = CHAR_BIT;
+       string_declaration->p.declaration_free = _string_declaration_free;
+       string_declaration->p.definition_new = _string_definition_new;
+       string_declaration->p.definition_free = _string_definition_free;
+       string_declaration->p.ref = 1;
+       string_declaration->encoding = encoding;
+       return string_declaration;
 }
 
-void string_type_free(struct type_class_string *string_class)
+static
+struct definition *
+       _string_definition_new(struct declaration *declaration,
+                              struct definition_scope *parent_scope,
+                              GQuark field_name, int index,
+                              const char *root_name)
 {
-       g_free(string_class);
+       struct declaration_string *string_declaration =
+               container_of(declaration, struct declaration_string, p);
+       struct definition_string *string;
+       int ret;
+
+       string = g_new(struct definition_string, 1);
+       bt_declaration_ref(&string_declaration->p);
+       string->p.declaration = declaration;
+       string->declaration = string_declaration;
+       string->p.ref = 1;
+       /*
+        * Use INT_MAX order to ensure that all fields of the parent
+        * scope are seen as being prior to this scope.
+        */
+       string->p.index = root_name ? INT_MAX : index;
+       string->p.name = field_name;
+       string->p.path = new_definition_path(parent_scope, field_name,
+                                       root_name);
+       string->p.scope = NULL;
+       string->value = NULL;
+       string->len = 0;
+       string->alloc_len = 0;
+       ret = register_field_definition(field_name, &string->p,
+                                       parent_scope);
+       assert(!ret);
+       return &string->p;
 }
 
-static void _string_type_free(struct type_class *type_class)
+static
+void _string_definition_free(struct definition *definition)
 {
-       struct type_class_string *string_class =
-               container_of(type_class, struct type_class_string, p);
-       string_type_free(string_class);
+       struct definition_string *string =
+               container_of(definition, struct definition_string, p);
+
+       bt_declaration_unref(string->p.declaration);
+       g_free(string->value);
+       g_free(string);
 }
 
-struct type_class_string *string_type_new(const char *name)
+enum ctf_string_encoding bt_get_string_encoding(const struct definition *field)
 {
-       struct type_class_string *string_class;
-       int ret;
+       struct definition_string *string_definition;
+       const struct declaration_string *string_declaration;
+
+       string_definition = container_of(field, struct definition_string, p);
+       string_declaration = string_definition->declaration;
+
+       return string_declaration->encoding;
+}
+
+char *bt_get_string(const struct definition *field)
+{
+       struct definition_string *string_definition =
+               container_of(field, struct definition_string, p);
+
+       assert(string_definition->value != NULL);
 
-       string_class = g_new(struct type_class_string, 1);
-       string_class->p.name = g_quark_from_string(name);
-       string_class->p.alignment = CHAR_BIT;
-       string_class->p.copy = string_copy;
-       string_class->p.free = _string_type_free;
-       string_class->p.ref = 1;
-       if (string_class->p.name) {
-               ret = ctf_register_type(&string_class->p);
-               if (ret) {
-                       g_free(string_class);
-                       return NULL;
-               }
-       }
-       return string_class;
+       return string_definition->value;
 }
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