*
* BabelTrace - Float 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
*/
#include <babeltrace/compiler.h>
+#include <babeltrace/format.h>
#include <babeltrace/types.h>
+#include <babeltrace/endian.h>
-void float_copy(struct stream_pos *dest, const struct format *fdest,
- struct stream_pos *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, src, float_class);
- } 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, float_class);
- fdest->double_write(dest, float_class, v);
- }
+ declaration_unref(&float_declaration->exp->p);
+ declaration_unref(&float_declaration->mantissa->p);
+ 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)
{
- integer_type_free(float_class->exp);
- integer_type_free(float_class->mantissa);
- integer_type_free(float_class->sign);
- g_free(float_class);
-}
+ struct declaration_float *float_declaration;
+ struct declaration *declaration;
-static void _float_type_free(struct type_class *type_class)
-{
- struct type_class_float *float_class =
- container_of(type_class, struct type_class_float, p);
- float_type_free(float_class);
+ 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;
}
-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
+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;
- struct type_class_integer *int_class;
- struct type_class *type_class;
+ struct declaration_float *float_declaration =
+ container_of(declaration, struct declaration_float, p);
+ struct definition_float *_float;
+ struct definition *tmp;
int ret;
- float_class = g_new(struct type_class_float, 1);
- type_class = &float_class->p;
-
- type_class->name = g_quark_from_string(name);
- type_class->alignment = alignment;
- type_class->copy = float_copy;
- type_class->free = _float_type_free;
- float_class->byte_order = byte_order;
-
- float_class->sign = integer_type_new(NULL, 1,
- byte_order, false, 1);
- if (!float_class->mantissa)
- goto error_sign;
- float_class->mantissa = integer_type_new(NULL, mantissa_len - 1,
- byte_order, false, 1);
- if (!float_class->mantissa)
- goto error_mantissa;
- float_class->exp = integer_type_new(NULL, exp_len,
- byte_order, true, 1);
- if (!float_class->exp)
- goto error_exp;
-
- if (float_class->p.name) {
- ret = ctf_register_type(&float_class->p);
- if (ret)
- goto error_register;
+ _float = g_new(struct definition_float, 1);
+ 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);
}
- return float_class;
+ _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) {
+ ret = register_field_definition(field_name, &_float->p,
+ parent_scope);
+ assert(!ret);
+ }
+ return &_float->p;
+}
+
+static
+void _float_definition_free(struct definition *definition)
+{
+ struct definition_float *_float =
+ container_of(definition, struct definition_float, p);
-error_register:
- integer_type_free(float_class->exp);
-error_exp:
- integer_type_free(float_class->mantissa);
-error_mantissa:
- integer_type_free(float_class->sign);
-error_sign:
- g_free(float_class);
- return NULL;
+ definition_unref(&_float->sign->p);
+ definition_unref(&_float->exp->p);
+ definition_unref(&_float->mantissa->p);
+ free_definition_scope(_float->p.scope);
+ declaration_unref(_float->p.declaration);
+ g_free(_float);
}
projects / babeltrace.git / blobdiff