X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=types%2Fvariant.c;h=a58c17ffab5ec2a498855cf6c67a609f5c26ec73;hp=2ab14a21cd4db6e9ecc031289553ff16702ed2d2;hb=13fad8b6d8ad53a55baca25234a0c59aeff83a3b;hpb=d60cb676b003e5eb83566f9a2707b4dfea005020 diff --git a/types/variant.c b/types/variant.c index 2ab14a21..a58c17ff 100644 --- a/types/variant.c +++ b/types/variant.c @@ -1,9 +1,11 @@ /* -* variant.c + * variant.c * * BabelTrace - Variant Type Converter * - * Copyright 2011 - Mathieu Desnoyers + * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation + * + * Author: Mathieu Desnoyers * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -14,38 +16,37 @@ * * 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 #include +#include #include static struct definition *_variant_definition_new(struct declaration *declaration, struct definition_scope *parent_scope, - GQuark field_name, int index); + GQuark field_name, int index, + const char *root_name); static void _variant_definition_free(struct definition *definition); -void variant_copy(struct stream_pos *dest, const struct format *fdest, - struct stream_pos *src, const struct format *fsrc, - struct definition *definition) +int variant_rw(struct stream_pos *ppos, struct definition *definition) { - struct definition_variant *variant = + struct definition_variant *variant_definition = container_of(definition, struct definition_variant, p); - struct declaration_variant *variant_declaration = variant->declaration; - struct field *field; - struct declaration *field_declaration; + struct definition *field; - fsrc->variant_begin(src, variant_declaration); - fdest->variant_begin(dest, variant_declaration); - - field = variant_get_current_field(variant); - field_declaration = field->definition->declaration; - field_declaration->copy(dest, fdest, src, fsrc, field->definition); - - fsrc->variant_end(src, variant_declaration); - fdest->variant_end(dest, variant_declaration); + field = variant_get_current_field(variant_definition); + return generic_rw(ppos, field); } static @@ -62,13 +63,13 @@ void _untagged_variant_declaration_free(struct declaration *declaration) struct declaration_field *declaration_field = &g_array_index(untagged_variant_declaration->fields, struct declaration_field, i); - declaration_unref(declaration_field->declaration); + bt_declaration_unref(declaration_field->declaration); } g_array_free(untagged_variant_declaration->fields, true); g_free(untagged_variant_declaration); } -struct declaration_untagged_variant *untagged_variant_declaration_new(const char *name, +struct declaration_untagged_variant *untagged_variant_declaration_new( struct declaration_scope *parent_scope) { struct declaration_untagged_variant *untagged_variant_declaration; @@ -83,9 +84,7 @@ struct declaration_untagged_variant *untagged_variant_declaration_new(const char DEFAULT_NR_STRUCT_FIELDS); untagged_variant_declaration->scope = new_declaration_scope(parent_scope); declaration->id = CTF_TYPE_UNTAGGED_VARIANT; - declaration->name = g_quark_from_string(name); declaration->alignment = 1; - declaration->copy = NULL; declaration->declaration_free = _untagged_variant_declaration_free; declaration->definition_new = NULL; declaration->definition_free = NULL; @@ -99,8 +98,9 @@ void _variant_declaration_free(struct declaration *declaration) struct declaration_variant *variant_declaration = container_of(declaration, struct declaration_variant, p); - _untagged_variant_declaration_free(&variant_declaration->untagged_variant->p); + bt_declaration_unref(&variant_declaration->untagged_variant->p); g_array_free(variant_declaration->tag_name, TRUE); + g_free(variant_declaration); } struct declaration_variant * @@ -112,11 +112,11 @@ struct declaration_variant * variant_declaration = g_new(struct declaration_variant, 1); declaration = &variant_declaration->p; variant_declaration->untagged_variant = untagged_variant; + bt_declaration_ref(&untagged_variant->p); variant_declaration->tag_name = g_array_new(FALSE, TRUE, sizeof(GQuark)); - append_scope_path(tag, variant_declaration->tag_name); + bt_append_scope_path(tag, variant_declaration->tag_name); declaration->id = CTF_TYPE_VARIANT; declaration->alignment = 1; - declaration->copy = variant_copy; declaration->declaration_free = _variant_declaration_free; declaration->definition_new = _variant_definition_new; declaration->definition_free = _variant_definition_free; @@ -175,54 +175,65 @@ static struct definition * _variant_definition_new(struct declaration *declaration, struct definition_scope *parent_scope, - GQuark field_name, int index) + GQuark field_name, int index, + const char *root_name) { struct declaration_variant *variant_declaration = container_of(declaration, struct declaration_variant, p); struct definition_variant *variant; unsigned long i; + int ret; variant = g_new(struct definition_variant, 1); - declaration_ref(&variant_declaration->p); + bt_declaration_ref(&variant_declaration->p); variant->p.declaration = declaration; variant->declaration = variant_declaration; variant->p.ref = 1; - variant->p.index = index; - variant->scope = new_definition_scope(parent_scope, field_name); - variant->enum_tag = lookup_definition(variant->scope->scope_path, - variant_declaration->tag_name, - parent_scope); + /* + * Use INT_MAX order to ensure that all fields of the parent + * scope are seen as being prior to this scope. + */ + variant->p.index = root_name ? INT_MAX : index; + variant->p.name = field_name; + variant->p.path = new_definition_path(parent_scope, field_name, root_name); + variant->p.scope = new_definition_scope(parent_scope, field_name, root_name); + + ret = register_field_definition(field_name, &variant->p, + parent_scope); + assert(!ret); + + variant->enum_tag = lookup_path_definition(variant->p.scope->scope_path, + variant_declaration->tag_name, + parent_scope); if (!variant->enum_tag || check_enum_tag(variant, variant->enum_tag) < 0) goto error; - definition_ref(variant->enum_tag); - variant->fields = g_array_sized_new(FALSE, TRUE, - sizeof(struct field), - variant_declaration->untagged_variant->fields->len); - g_array_set_size(variant->fields, variant_declaration->untagged_variant->fields->len); + bt_definition_ref(variant->enum_tag); + variant->fields = g_ptr_array_sized_new(variant_declaration->untagged_variant->fields->len); + g_ptr_array_set_size(variant->fields, variant_declaration->untagged_variant->fields->len); for (i = 0; i < variant_declaration->untagged_variant->fields->len; i++) { struct declaration_field *declaration_field = &g_array_index(variant_declaration->untagged_variant->fields, struct declaration_field, i); - struct field *field = &g_array_index(variant->fields, - struct field, i); + struct definition **field = + (struct definition **) &g_ptr_array_index(variant->fields, i); - field->name = declaration_field->name; /* * All child definition are at index 0, because they are * various choices of the same field. */ - field->definition = - declaration_field->declaration->definition_new(declaration_field->declaration, - variant->scope, - field->name, 0); + *field = declaration_field->declaration->definition_new(declaration_field->declaration, + variant->p.scope, + declaration_field->name, 0, NULL); + if (!*field) + goto error; } variant->current_field = NULL; return &variant->p; error: - free_definition_scope(variant->scope); - declaration_unref(&variant_declaration->p); + free_definition_scope(variant->p.scope); + bt_declaration_unref(&variant_declaration->p); g_free(variant); return NULL; } @@ -236,13 +247,13 @@ void _variant_definition_free(struct definition *definition) assert(variant->fields->len == variant->declaration->untagged_variant->fields->len); for (i = 0; i < variant->fields->len; i++) { - struct field *field = &g_array_index(variant->fields, - struct field, i); - definition_unref(field->definition); + struct definition *field = g_ptr_array_index(variant->fields, i); + bt_definition_unref(field); } - definition_unref(variant->enum_tag); - free_definition_scope(variant->scope); - declaration_unref(variant->p.declaration); + bt_definition_unref(variant->enum_tag); + free_definition_scope(variant->p.scope); + bt_declaration_unref(variant->p.declaration); + g_ptr_array_free(variant->fields, TRUE); g_free(variant); } @@ -257,7 +268,7 @@ void untagged_variant_declaration_add_field(struct declaration_untagged_variant index = untagged_variant_declaration->fields->len - 1; /* last field (new) */ field = &g_array_index(untagged_variant_declaration->fields, struct declaration_field, index); field->name = g_quark_from_string(field_name); - declaration_ref(field_declaration); + bt_declaration_ref(field_declaration); field->declaration = field_declaration; /* Keep index in hash rather than pointer, because array can relocate */ g_hash_table_insert(untagged_variant_declaration->fields_by_tag, @@ -273,17 +284,24 @@ void untagged_variant_declaration_add_field(struct declaration_untagged_variant struct declaration_field * untagged_variant_declaration_get_field_from_tag(struct declaration_untagged_variant *untagged_variant_declaration, GQuark tag) { - unsigned long index; + gpointer index; + gboolean found; - index = (unsigned long) g_hash_table_lookup(untagged_variant_declaration->fields_by_tag, - (gconstpointer) (unsigned long) tag); - return &g_array_index(untagged_variant_declaration->fields, struct declaration_field, index); + found = g_hash_table_lookup_extended( + untagged_variant_declaration->fields_by_tag, + (gconstpointer) (unsigned long) tag, NULL, &index); + + if (!found) { + return NULL; + } + + return &g_array_index(untagged_variant_declaration->fields, struct declaration_field, (unsigned long)index); } /* * field returned only valid as long as the field structure is not appended to. */ -struct field *variant_get_current_field(struct definition_variant *variant) +struct definition *variant_get_current_field(struct definition_variant *variant) { struct definition_enum *_enum = container_of(variant->enum_tag, struct definition_enum, p); @@ -301,6 +319,6 @@ struct field *variant_get_current_field(struct definition_variant *variant) tag = g_array_index(tag_array, GQuark, 0); index = (unsigned long) g_hash_table_lookup(variant_declaration->untagged_variant->fields_by_tag, (gconstpointer) (unsigned long) tag); - variant->current_field = &g_array_index(variant->fields, struct field, index); + variant->current_field = g_ptr_array_index(variant->fields, index); return variant->current_field; }