/*
+ * float.c
+ *
* BabelTrace - Float Type Converter
*
- * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * 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/format.h>
#include <babeltrace/types.h>
+#include <babeltrace/endian.h>
-size_t float_copy(unsigned char *dest, const struct format *fdest,
- const unsigned char *src, const struct format *fsrc,
- const struct type_class *type_class)
-{
- struct type_class_float *float_class =
- container_of(type_class, struct type_class_float, p);
+static
+struct definition *_float_definition_new(struct declaration *declaration,
+ struct definition_scope *parent_scope,
+ GQuark field_name, int index,
+ const char *root_name);
+static
+void _float_definition_free(struct definition *definition);
- if (fsrc->float_copy == fdest->float_copy) {
- fsrc->float_copy(dest, float_class, src, float_class);
- return float_class->mantissa_len + float_class->exp_len;
- } else {
- double v;
+static
+void _float_declaration_free(struct declaration *declaration)
+{
+ struct declaration_float *float_declaration =
+ container_of(declaration, struct declaration_float, p);
- v = fsrc->double_read(src, fsrc);
- return fdest->double_write(dest, fdest, v);
- }
+ bt_declaration_unref(&float_declaration->exp->p);
+ bt_declaration_unref(&float_declaration->mantissa->p);
+ bt_declaration_unref(&float_declaration->sign->p);
+ g_free(float_declaration);
}
-void float_type_free(struct type_class_float *float_class)
+struct declaration_float *
+ float_declaration_new(size_t mantissa_len,
+ size_t exp_len, int byte_order, size_t alignment)
{
- g_free(float_class);
+ struct declaration_float *float_declaration;
+ struct declaration *declaration;
+
+ float_declaration = g_new(struct declaration_float, 1);
+ declaration = &float_declaration->p;
+ declaration->id = CTF_TYPE_FLOAT;
+ declaration->alignment = alignment;
+ declaration->declaration_free = _float_declaration_free;
+ declaration->definition_new = _float_definition_new;
+ declaration->definition_free = _float_definition_free;
+ declaration->ref = 1;
+ float_declaration->byte_order = byte_order;
+
+ float_declaration->sign = integer_declaration_new(1,
+ byte_order, false, 1, 2,
+ CTF_STRING_NONE, NULL);
+ float_declaration->mantissa = integer_declaration_new(mantissa_len - 1,
+ byte_order, false, 1, 10,
+ CTF_STRING_NONE, NULL);
+ float_declaration->exp = integer_declaration_new(exp_len,
+ byte_order, true, 1, 10,
+ CTF_STRING_NONE, NULL);
+ return float_declaration;
}
-static void _float_type_free(struct type_class *type_class)
+static
+struct definition *
+ _float_definition_new(struct declaration *declaration,
+ struct definition_scope *parent_scope,
+ GQuark field_name, int index,
+ const char *root_name)
{
- struct type_class_float *float_class =
- container_of(type_class, struct type_class_float, p);
- float_type_free(float_class);
+ struct declaration_float *float_declaration =
+ container_of(declaration, struct declaration_float, p);
+ struct definition_float *_float;
+ struct definition *tmp;
+
+ _float = g_new(struct definition_float, 1);
+ bt_declaration_ref(&float_declaration->p);
+ _float->p.declaration = declaration;
+ _float->declaration = float_declaration;
+ _float->p.scope = new_definition_scope(parent_scope, field_name, root_name);
+ _float->p.path = new_definition_path(parent_scope, field_name, root_name);
+ if (float_declaration->byte_order == LITTLE_ENDIAN) {
+ tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
+ _float->p.scope, g_quark_from_static_string("mantissa"), 0, NULL);
+ _float->mantissa = container_of(tmp, struct definition_integer, p);
+ tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p,
+ _float->p.scope, g_quark_from_static_string("exp"), 1, NULL);
+ _float->exp = container_of(tmp, struct definition_integer, p);
+ tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
+ _float->p.scope, g_quark_from_static_string("sign"), 2, NULL);
+ _float->sign = container_of(tmp, struct definition_integer, p);
+ } else {
+ tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
+ _float->p.scope, g_quark_from_static_string("sign"), 0, NULL);
+ _float->sign = container_of(tmp, struct definition_integer, p);
+ tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p,
+ _float->p.scope, g_quark_from_static_string("exp"), 1, NULL);
+ _float->exp = container_of(tmp, struct definition_integer, p);
+ tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
+ _float->p.scope, g_quark_from_static_string("mantissa"), 2, NULL);
+ _float->mantissa = container_of(tmp, struct definition_integer, p);
+ }
+ _float->p.ref = 1;
+ /*
+ * Use INT_MAX order to ensure that all fields of the parent
+ * scope are seen as being prior to this scope.
+ */
+ _float->p.index = root_name ? INT_MAX : index;
+ _float->p.name = field_name;
+ _float->value = 0.0;
+ if (parent_scope) {
+ int ret;
+
+ ret = register_field_definition(field_name, &_float->p,
+ parent_scope);
+ assert(!ret);
+ }
+ return &_float->p;
}
-struct type_class_float *float_type_new(const char *name,
- size_t mantissa_len,
- size_t exp_len, int byte_order,
- size_t alignment)
+static
+void _float_definition_free(struct definition *definition)
{
- struct type_class_float *float_class;
- int ret;
+ struct definition_float *_float =
+ container_of(definition, struct definition_float, p);
- float_class = g_new(struct type_class_float, 1);
- float_class->p.name = g_quark_from_string(name);
- float_class->p.alignment = alignment;
- float_class->p.copy = float_copy;
- float_class->p.free = _float_type_free;
- float_class->mantissa_len = mantissa_len;
- float_class->exp_len = exp_len;
- float_class->byte_order = byte_order;
- if (float_class->p.name) {
- ret = ctf_register_type(&float_class->p);
- if (ret) {
- g_free(float_class);
- return NULL;
- }
- }
- return float_class;
+ bt_definition_unref(&_float->sign->p);
+ bt_definition_unref(&_float->exp->p);
+ bt_definition_unref(&_float->mantissa->p);
+ free_definition_scope(_float->p.scope);
+ bt_declaration_unref(_float->p.declaration);
+ g_free(_float);
}
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