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Add OtVariantBuilder

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This is similar to GVariantBuilder in that it constructs variant
containers, but it writes it directly to a file descriptor rather
than keep the entier thing in memory. This is useful to create large
variants without using a lot of memory.

Closes: #1309
Approved by: cgwalters
This commit is contained in:
Alexander Larsson 2017-10-25 19:31:48 +02:00 committed by Atomic Bot
parent 74e00d32be
commit 72bb1a6b17
4 changed files with 1283 additions and 0 deletions
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2
Makefile-otutil.am
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@ -34,6 +34,8 @@ libotutil_la_SOURCES = \
src/libotutil/ot-unix-utils.h \
src/libotutil/ot-variant-utils.c \
src/libotutil/ot-variant-utils.h \
src/libotutil/ot-variant-builder.c \
src/libotutil/ot-variant-builder.h \
src/libotutil/ot-gio-utils.c \
src/libotutil/ot-gio-utils.h \
src/libotutil/ot-gpg-utils.c \

1219
src/libotutil/ot-variant-builder.c Normal file
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61
src/libotutil/ot-variant-builder.h Normal file
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@ -0,0 +1,61 @@
/*
* Copyright (C) 2017 Alexander Larsson <alexl@redhat.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 of the License, or (at your option) any later version.
*
* 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.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>.
*/
#pragma once
#include <gio/gio.h>
#include "libglnx.h"
G_BEGIN_DECLS
typedef struct _OtVariantBuilder OtVariantBuilder;
OtVariantBuilder *ot_variant_builder_new (const GVariantType *type,
int fd);
void ot_variant_builder_unref (OtVariantBuilder *builder);
OtVariantBuilder *ot_variant_builder_ref (OtVariantBuilder *builder);
gboolean ot_variant_builder_end (OtVariantBuilder *builder,
GError **error);
gboolean ot_variant_builder_open (OtVariantBuilder *builder,
const GVariantType *type,
GError **error);
gboolean ot_variant_builder_close (OtVariantBuilder *builder,
GError **error);
gboolean ot_variant_builder_add_from_fd (OtVariantBuilder *builder,
const GVariantType *type,
int fd,
guint64 size,
GError **error);
gboolean ot_variant_builder_add_value (OtVariantBuilder *builder,
GVariant *value,
GError **error);
gboolean ot_variant_builder_add (OtVariantBuilder *builder,
GError **error,
const gchar *format_string,
...);
void ot_variant_builder_add_parsed (OtVariantBuilder *builder,
const gchar *format,
...);
G_DEFINE_AUTOPTR_CLEANUP_FUNC (OtVariantBuilder, ot_variant_builder_unref)
G_END_DECLS

1
src/libotutil/otutil.h
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@ -48,6 +48,7 @@
#include <ot-opt-utils.h>
#include <ot-unix-utils.h>
#include <ot-variant-utils.h>
#include <ot-variant-builder.h>
#include <ot-checksum-utils.h>
#include <ot-gpg-utils.h>
#include <ot-checksum-instream.h>