mirror of https://gitee.com/openkylin/glib2.0.git
100 lines
4.7 KiB
C
100 lines
4.7 KiB
C
/*
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* Copyright © 2007, 2008 Ryan Lortie
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* Copyright © 2010 Codethink Limited
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#ifndef __G_VARIANT_SERIALISER_H__
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#define __G_VARIANT_SERIALISER_H__
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#include "gvarianttypeinfo.h"
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typedef struct
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{
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GVariantTypeInfo *type_info;
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guchar *data;
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gsize size;
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gsize depth; /* same semantics as GVariant.depth */
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/* If ordered_offsets_up_to == n this means that all the frame offsets up to and
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* including the frame offset determining the end of element n are in order.
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* This guarantees that the bytes of element n don't overlap with any previous
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* element.
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*
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* This is both read and set by g_variant_serialised_get_child() for arrays of
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* non-fixed-width types, and for tuples.
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*
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* Even when dealing with tuples, @ordered_offsets_up_to is an element index,
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* rather than an index into the frame offsets. */
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gsize ordered_offsets_up_to;
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/* Similar to @ordered_offsets_up_to. This gives the index of the child element
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* whose frame offset is the highest in the offset table which has been
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* checked so far.
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*
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* This is always ≥ @ordered_offsets_up_to. It is always an element index.
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*
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* See documentation in gvariant-core.c for `struct GVariant` for details. */
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gsize checked_offsets_up_to;
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} GVariantSerialised;
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/* deserialization */
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GLIB_AVAILABLE_IN_ALL
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gsize g_variant_serialised_n_children (GVariantSerialised container);
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GLIB_AVAILABLE_IN_ALL
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GVariantSerialised g_variant_serialised_get_child (GVariantSerialised container,
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gsize index);
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/* serialization */
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typedef void (*GVariantSerialisedFiller) (GVariantSerialised *serialised,
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gpointer data);
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GLIB_AVAILABLE_IN_ALL
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gsize g_variant_serialiser_needed_size (GVariantTypeInfo *info,
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GVariantSerialisedFiller gsv_filler,
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const gpointer *children,
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gsize n_children);
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GLIB_AVAILABLE_IN_ALL
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void g_variant_serialiser_serialise (GVariantSerialised container,
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GVariantSerialisedFiller gsv_filler,
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const gpointer *children,
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gsize n_children);
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/* misc */
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GLIB_AVAILABLE_IN_2_60
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gboolean g_variant_serialised_check (GVariantSerialised serialised);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_variant_serialised_is_normal (GVariantSerialised value);
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GLIB_AVAILABLE_IN_ALL
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void g_variant_serialised_byteswap (GVariantSerialised value);
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/* validation of strings */
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GLIB_AVAILABLE_IN_ALL
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gboolean g_variant_serialiser_is_string (gconstpointer data,
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gsize size);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_variant_serialiser_is_object_path (gconstpointer data,
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gsize size);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_variant_serialiser_is_signature (gconstpointer data,
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gsize size);
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#endif /* __G_VARIANT_SERIALISER_H__ */
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