/*
+ * array.c
+ *
* BabelTrace - Array Type Converter
*
- * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
*
- * 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.
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * 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.
+ * 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:
*
- * 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 above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*/
#include <babeltrace/compiler.h>
+#include <babeltrace/format.h>
#include <babeltrace/types.h>
+#include <inttypes.h>
-void array_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_array *array_class =
- container_of(type_class, struct type_class_array, p);
- unsigned int i;
+static
+struct definition *_array_definition_new(struct declaration *declaration,
+ struct definition_scope *parent_scope,
+ GQuark field_name, int index, const char *root_name);
+static
+void _array_definition_free(struct definition *definition);
- fsrc->array_begin(src, array_class);
- fdest->array_begin(dest, array_class);
+int array_rw(struct stream_pos *pos, struct definition *definition)
+{
+ struct definition_array *array_definition =
+ container_of(definition, struct definition_array, p);
+ const struct declaration_array *array_declaration =
+ array_definition->declaration;
+ uint64_t i;
+ int ret;
- for (i = 0; i < array_class->len; i++) {
- struct type_class *elem_class = array_class->elem;
- elem_class->copy(dest, fdest, src, fsrc, &elem_class->p);
+ /* No need to align, because the first field will align itself. */
+ for (i = 0; i < array_declaration->len; i++) {
+ struct definition *field =
+ g_ptr_array_index(array_definition->elems, i);
+ ret = generic_rw(pos, field);
+ if (ret)
+ return ret;
}
- fsrc->array_end(src, array_class);
- fdest->array_end(dest, array_class);
+ return 0;
}
-void array_type_free(struct type_class_array *array_class)
+static
+void _array_declaration_free(struct declaration *declaration)
{
- array_class->elem->free(&array_class->elem->p);
- g_free(array_class);
+ struct declaration_array *array_declaration =
+ container_of(declaration, struct declaration_array, p);
+
+ free_declaration_scope(array_declaration->scope);
+ declaration_unref(array_declaration->elem);
+ g_free(array_declaration);
}
-static void _array_type_free(struct type_class *type_class)
+struct declaration_array *
+ array_declaration_new(size_t len,
+ struct declaration *elem_declaration,
+ struct declaration_scope *parent_scope)
{
- struct type_class_struct *array_class =
- container_of(type_class, struct type_class_array, p);
- array_type_free(array_class);
+ struct declaration_array *array_declaration;
+ struct declaration *declaration;
+
+ array_declaration = g_new(struct declaration_array, 1);
+ declaration = &array_declaration->p;
+ array_declaration->len = len;
+ declaration_ref(elem_declaration);
+ array_declaration->elem = elem_declaration;
+ array_declaration->scope = new_declaration_scope(parent_scope);
+ declaration->id = CTF_TYPE_ARRAY;
+ /* No need to align the array, the first element will align itself */
+ declaration->alignment = 1;
+ declaration->declaration_free = _array_declaration_free;
+ declaration->definition_new = _array_definition_new;
+ declaration->definition_free = _array_definition_free;
+ declaration->ref = 1;
+ return array_declaration;
}
-struct type_class_array *array_type_new(const char *name, size_t len,
- struct type_class *elem)
+static
+struct definition *
+ _array_definition_new(struct declaration *declaration,
+ struct definition_scope *parent_scope,
+ GQuark field_name, int index, const char *root_name)
{
- struct type_class_array *array_class;
+ struct declaration_array *array_declaration =
+ container_of(declaration, struct declaration_array, p);
+ struct definition_array *array;
int ret;
+ int i;
- array_class = g_new(struct type_class_array, 1);
- type_class = &float_class->p;
+ array = g_new(struct definition_array, 1);
+ declaration_ref(&array_declaration->p);
+ array->p.declaration = declaration;
+ array->declaration = array_declaration;
+ array->p.ref = 1;
+ /*
+ * Use INT_MAX order to ensure that all fields of the parent
+ * scope are seen as being prior to this scope.
+ */
+ array->p.index = root_name ? INT_MAX : index;
+ array->p.name = field_name;
+ array->p.path = new_definition_path(parent_scope, field_name, root_name);
+ array->p.scope = new_definition_scope(parent_scope, field_name, root_name);
+ ret = register_field_definition(field_name, &array->p,
+ parent_scope);
+ assert(!ret);
+ array->string = NULL;
+ array->elems = NULL;
- array_class->len = len;
- type_class->name = g_quark_from_string(name);
- /* No need to align the array, the first element will align itself */
- type_class->alignment = 1;
- type_class->copy = array_copy;
- type_class->free = _array_type_free;
+ if (array_declaration->elem->id == CTF_TYPE_INTEGER) {
+ struct declaration_integer *integer_declaration =
+ container_of(array_declaration->elem, struct declaration_integer, p);
- if (type_class->name) {
- ret = ctf_register_type(type_class);
- if (ret)
- goto error_register;
+ if (integer_declaration->encoding == CTF_STRING_UTF8
+ || integer_declaration->encoding == CTF_STRING_ASCII) {
+
+ array->string = g_string_new("");
+
+ if (integer_declaration->len == CHAR_BIT
+ && integer_declaration->p.alignment == CHAR_BIT) {
+ return &array->p;
+ }
+ }
}
- return array_class;
-error_register:
- g_free(array_class);
+ array->elems = g_ptr_array_sized_new(array_declaration->len);
+ g_ptr_array_set_size(array->elems, array_declaration->len);
+ for (i = 0; i < array_declaration->len; i++) {
+ struct definition **field;
+ GString *str;
+ GQuark name;
+
+ str = g_string_new("");
+ g_string_printf(str, "[%u]", (unsigned int) i);
+ name = g_quark_from_string(str->str);
+ (void) g_string_free(str, TRUE);
+
+ field = (struct definition **) &g_ptr_array_index(array->elems, i);
+ *field = array_declaration->elem->definition_new(array_declaration->elem,
+ array->p.scope,
+ name, i, NULL);
+ if (!*field)
+ goto error;
+ }
+
+ return &array->p;
+
+error:
+ for (i--; i >= 0; i--) {
+ struct definition *field;
+
+ field = g_ptr_array_index(array->elems, i);
+ field->declaration->definition_free(field);
+ }
+ (void) g_ptr_array_free(array->elems, TRUE);
+ free_definition_scope(array->p.scope);
+ declaration_unref(array->p.declaration);
+ g_free(array);
+ return NULL;
+}
+
+static
+void _array_definition_free(struct definition *definition)
+{
+ struct definition_array *array =
+ container_of(definition, struct definition_array, p);
+ uint64_t i;
+
+ if (array->string)
+ (void) g_string_free(array->string, TRUE);
+ if (array->elems) {
+ for (i = 0; i < array->elems->len; i++) {
+ struct definition *field;
+
+ field = g_ptr_array_index(array->elems, i);
+ field->declaration->definition_free(field);
+ }
+ (void) g_ptr_array_free(array->elems, TRUE);
+ }
+ free_definition_scope(array->p.scope);
+ declaration_unref(array->p.declaration);
+ g_free(array);
+}
+
+uint64_t array_len(struct definition_array *array)
+{
+ if (!array->elems)
+ return array->string->len;
+ return array->elems->len;
+}
+
+struct definition *array_index(struct definition_array *array, uint64_t i)
+{
+ if (!array->elems)
+ return NULL;
+ if (i >= array->elems->len)
+ return NULL;
+ return g_ptr_array_index(array->elems, i);
+}
+
+int get_array_len(const struct definition *field)
+{
+ struct definition_array *array_definition;
+ struct declaration_array *array_declaration;
+
+ array_definition = container_of(field, struct definition_array, p);
+ array_declaration = array_definition->declaration;
+
+ return array_declaration->len;
+}
+
+GString *get_char_array(const struct definition *field)
+{
+ struct definition_array *array_definition;
+ struct declaration_array *array_declaration;
+ struct declaration *elem;
+
+ array_definition = container_of(field, struct definition_array, p);
+ array_declaration = array_definition->declaration;
+ elem = array_declaration->elem;
+ if (elem->id == CTF_TYPE_INTEGER) {
+ struct declaration_integer *integer_declaration =
+ container_of(elem, struct declaration_integer, p);
+
+ if (integer_declaration->encoding == CTF_STRING_UTF8
+ || integer_declaration->encoding == CTF_STRING_ASCII) {
+
+ if (integer_declaration->len == CHAR_BIT
+ && integer_declaration->p.alignment == CHAR_BIT) {
+
+ return array_definition->string;
+ }
+ }
+ }
+ fprintf(stderr, "[warning] Extracting string\n");
return NULL;
}
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