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Merge branch 'gvdb-as-wrap' into 'main'

Browse Source 
build: Move gvdb to a subproject

See merge request GNOME/glib!2733
This commit is contained in:
Philip Withnall 2022-06-16 09:29:43 +00:00
commit 594a70bf5f
15 changed files with 29 additions and 1670 deletions
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8
.gitlab-ci.yml
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@ -10,10 +10,10 @@ cache:
- _ccache/
variables:
FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v15"
COVERITY_IMAGE: "registry.gitlab.gnome.org/gnome/glib/coverity:v4"
DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v10"
MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v6"
FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v16"
COVERITY_IMAGE: "registry.gitlab.gnome.org/gnome/glib/coverity:v5"
DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v11"
MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v7"
MESON_TEST_TIMEOUT_MULTIPLIER: 2
G_MESSAGES_DEBUG: all
MESON_COMMON_OPTIONS: "--buildtype debug --wrap-mode=nodownload --fatal-meson-warnings"

1
.gitlab-ci/cache-subprojects.sh
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@ -3,6 +3,7 @@
set -e
git clone --depth 1 --no-tags https://gitlab.gnome.org/GNOME/glib.git
git -C glib submodule update --init
meson subprojects download --sourcedir glib
rm glib/subprojects/*.wrap
mv glib/subprojects/ .

2
.gitlab-ci/coverity.Dockerfile
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@ -1,4 +1,4 @@
FROM registry.gitlab.gnome.org/gnome/glib/fedora:v14
FROM registry.gitlab.gnome.org/gnome/glib/fedora:v16
ARG COVERITY_SCAN_PROJECT_NAME
ARG COVERITY_SCAN_TOKEN

5
.gitmodules vendored Normal file
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@ -0,0 +1,5 @@
[submodule "subprojects/gvdb"]
path = subprojects/gvdb
url = https://gitlab.gnome.org/GNOME/gvdb.git
branch = 0854af0fdb6d527a8d1999835ac2c5059976c210
shallow = true

1
docs/reference/gio/meson.build
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@ -4,7 +4,6 @@ if get_option('gtk_doc')
ignore_headers = [
'gdbus-2.0',
'gvdb',
'inotify',
'kqueue',
'libasyncns',

636
gio/gvdb/gvdb-builder.c
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@ -1,636 +0,0 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "gvdb-builder.h"
#include "gvdb-format.h"
#include <glib.h>
#include <fcntl.h>
#if !defined(G_OS_WIN32) || !defined(_MSC_VER)
#include <unistd.h>
#endif
#include <string.h>
struct _GvdbItem
{
gchar *key;
guint32 hash_value;
guint32_le assigned_index;
GvdbItem *parent;
GvdbItem *sibling;
GvdbItem *next;
/* one of:
* this:
*/
GVariant *value;
/* this: */
GHashTable *table;
/* or this: */
GvdbItem *child;
};
static void
gvdb_item_free (gpointer data)
{
GvdbItem *item = data;
g_free (item->key);
if (item->value)
g_variant_unref (item->value);
if (item->table)
g_hash_table_unref (item->table);
g_slice_free (GvdbItem, item);
}
GHashTable *
gvdb_hash_table_new (GHashTable *parent,
const gchar *name_in_parent)
{
GHashTable *table;
table = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, gvdb_item_free);
if (parent)
{
GvdbItem *item;
item = gvdb_hash_table_insert (parent, name_in_parent);
gvdb_item_set_hash_table (item, table);
}
return table;
}
static guint32
djb_hash (const gchar *key)
{
guint32 hash_value = 5381;
while (*key)
hash_value = hash_value * 33 + *(signed char *)key++;
return hash_value;
}
GvdbItem *
gvdb_hash_table_insert (GHashTable *table,
const gchar *key)
{
GvdbItem *item;
item = g_slice_new0 (GvdbItem);
item->key = g_strdup (key);
item->hash_value = djb_hash (key);
g_hash_table_insert (table, g_strdup (key), item);
return item;
}
void
gvdb_hash_table_insert_string (GHashTable *table,
const gchar *key,
const gchar *value)
{
GvdbItem *item;
item = gvdb_hash_table_insert (table, key);
gvdb_item_set_value (item, g_variant_new_string (value));
}
void
gvdb_item_set_value (GvdbItem *item,
GVariant *value)
{
g_return_if_fail (!item->value && !item->table && !item->child);
item->value = g_variant_ref_sink (value);
}
void
gvdb_item_set_hash_table (GvdbItem *item,
GHashTable *table)
{
g_return_if_fail (!item->value && !item->table && !item->child);
item->table = g_hash_table_ref (table);
}
void
gvdb_item_set_parent (GvdbItem *item,
GvdbItem *parent)
{
GvdbItem **node;
g_return_if_fail (g_str_has_prefix (item->key, parent->key));
g_return_if_fail (!parent->value && !parent->table);
g_return_if_fail (!item->parent && !item->sibling);
for (node = &parent->child; *node; node = &(*node)->sibling)
if (strcmp ((*node)->key, item->key) > 0)
break;
item->parent = parent;
item->sibling = *node;
*node = item;
}
typedef struct
{
GvdbItem **buckets;
gint n_buckets;
} HashTable;
static HashTable *
hash_table_new (gint n_buckets)
{
HashTable *table;
table = g_slice_new (HashTable);
table->buckets = g_new0 (GvdbItem *, n_buckets);
table->n_buckets = n_buckets;
return table;
}
static void
hash_table_free (HashTable *table)
{
g_free (table->buckets);
g_slice_free (HashTable, table);
}
static void
hash_table_insert (gpointer key,
gpointer value,
gpointer data)
{
guint32 hash_value, bucket;
HashTable *table = data;
GvdbItem *item = value;
hash_value = djb_hash (key);
bucket = hash_value % table->n_buckets;
item->next = table->buckets[bucket];
table->buckets[bucket] = item;
}
static guint32_le
item_to_index (GvdbItem *item)
{
if (item != NULL)
return item->assigned_index;
return guint32_to_le ((guint32) -1);
}
typedef struct
{
GQueue *chunks;
guint64 offset;
gboolean byteswap;
} FileBuilder;
typedef struct
{
gsize offset;
gsize size;
gpointer data;
} FileChunk;
static gpointer
file_builder_allocate (FileBuilder *fb,
guint alignment,
gsize size,
struct gvdb_pointer *pointer)
{
FileChunk *chunk;
if (size == 0)
return NULL;
fb->offset += (guint64) (-fb->offset) & (alignment - 1);
chunk = g_slice_new (FileChunk);
chunk->offset = fb->offset;
chunk->size = size;
chunk->data = g_malloc (size);
pointer->start = guint32_to_le (fb->offset);
fb->offset += size;
pointer->end = guint32_to_le (fb->offset);
g_queue_push_tail (fb->chunks, chunk);
return chunk->data;
}
static void
file_builder_add_value (FileBuilder *fb,
GVariant *value,
struct gvdb_pointer *pointer)
{
GVariant *variant, *normal;
gpointer data;
gsize size;
if (fb->byteswap)
{
value = g_variant_byteswap (value);
variant = g_variant_new_variant (value);
g_variant_unref (value);
}
else
variant = g_variant_new_variant (value);
normal = g_variant_get_normal_form (variant);
g_variant_unref (variant);
size = g_variant_get_size (normal);
data = file_builder_allocate (fb, 8, size, pointer);
g_variant_store (normal, data);
g_variant_unref (normal);
}
static void
file_builder_add_string (FileBuilder *fb,
const gchar *string,
guint32_le *start,
guint16_le *size)
{
FileChunk *chunk;
gsize length;
length = strlen (string);
chunk = g_slice_new (FileChunk);
chunk->offset = fb->offset;
chunk->size = length;
chunk->data = g_malloc (length);
if (length != 0)
memcpy (chunk->data, string, length);
*start = guint32_to_le (fb->offset);
*size = guint16_to_le (length);
fb->offset += length;
g_queue_push_tail (fb->chunks, chunk);
}
static void
file_builder_allocate_for_hash (FileBuilder *fb,
gsize n_buckets,
gsize n_items,
guint bloom_shift,
gsize n_bloom_words,
guint32_le **bloom_filter,
guint32_le **hash_buckets,
struct gvdb_hash_item **hash_items,
struct gvdb_pointer *pointer)
{
guint32_le bloom_hdr, table_hdr;
guchar *data;
gsize size;
g_assert (n_bloom_words < (1u << 27));
bloom_hdr = guint32_to_le (bloom_shift << 27 | n_bloom_words);
table_hdr = guint32_to_le (n_buckets);
size = sizeof bloom_hdr + sizeof table_hdr +
n_bloom_words * sizeof (guint32_le) +
n_buckets * sizeof (guint32_le) +
n_items * sizeof (struct gvdb_hash_item);
data = file_builder_allocate (fb, 4, size, pointer);
#define chunk(s) (size -= (s), data += (s), data - (s))
memcpy (chunk (sizeof bloom_hdr), &bloom_hdr, sizeof bloom_hdr);
memcpy (chunk (sizeof table_hdr), &table_hdr, sizeof table_hdr);
*bloom_filter = (guint32_le *) chunk (n_bloom_words * sizeof (guint32_le));
*hash_buckets = (guint32_le *) chunk (n_buckets * sizeof (guint32_le));
*hash_items = (struct gvdb_hash_item *) chunk (n_items *
sizeof (struct gvdb_hash_item));
g_assert (size == 0);
#undef chunk
memset (*bloom_filter, 0, n_bloom_words * sizeof (guint32_le));
memset (*hash_buckets, 0, n_buckets * sizeof (guint32_le));
memset (*hash_items, 0, n_items * sizeof (struct gvdb_hash_item));
/* NOTE - the code to actually fill in the bloom filter here is missing.
* Patches welcome!
*
* http://en.wikipedia.org/wiki/Bloom_filter
* http://0pointer.de/blog/projects/bloom.html
*/
}
static void
file_builder_add_hash (FileBuilder *fb,
GHashTable *table,
struct gvdb_pointer *pointer)
{
guint32_le *buckets, *bloom_filter;
struct gvdb_hash_item *items;
HashTable *mytable;
GvdbItem *item;
guint32 index;
gint bucket;
mytable = hash_table_new (g_hash_table_size (table));
g_hash_table_foreach (table, hash_table_insert, mytable);
index = 0;
for (bucket = 0; bucket < mytable->n_buckets; bucket++)
for (item = mytable->buckets[bucket]; item; item = item->next)
item->assigned_index = guint32_to_le (index++);
file_builder_allocate_for_hash (fb, mytable->n_buckets, index, 5, 0,
&bloom_filter, &buckets, &items, pointer);
index = 0;
for (bucket = 0; bucket < mytable->n_buckets; bucket++)
{
buckets[bucket] = guint32_to_le (index);
for (item = mytable->buckets[bucket]; item; item = item->next)
{
struct gvdb_hash_item *entry = items++;
const gchar *basename;
g_assert (index == guint32_from_le (item->assigned_index));
entry->hash_value = guint32_to_le (item->hash_value);
entry->parent = item_to_index (item->parent);
entry->unused = 0;
if (item->parent != NULL)
basename = item->key + strlen (item->parent->key);
else
basename = item->key;
file_builder_add_string (fb, basename,
&entry->key_start,
&entry->key_size);
if (item->value != NULL)
{
g_assert (item->child == NULL && item->table == NULL);
file_builder_add_value (fb, item->value, &entry->value.pointer);
entry->type = 'v';
}
if (item->child != NULL)
{
guint32 children = 0, i = 0;
guint32_le *offsets;
GvdbItem *child;
g_assert (item->table == NULL);
for (child = item->child; child; child = child->sibling)
children++;
offsets = file_builder_allocate (fb, 4, 4 * children,
&entry->value.pointer);
entry->type = 'L';
for (child = item->child; child; child = child->sibling)
offsets[i++] = child->assigned_index;
g_assert (children == i);
}
if (item->table != NULL)
{
entry->type = 'H';
file_builder_add_hash (fb, item->table, &entry->value.pointer);
}
index++;
}
}
hash_table_free (mytable);
}
static FileBuilder *
file_builder_new (gboolean byteswap)
{
FileBuilder *builder;
builder = g_slice_new (FileBuilder);
builder->chunks = g_queue_new ();
builder->offset = sizeof (struct gvdb_header);
builder->byteswap = byteswap;
return builder;
}
static void
file_builder_free (FileBuilder *fb)
{
g_queue_free (fb->chunks);
g_slice_free (FileBuilder, fb);
}
static GString *
file_builder_serialise (FileBuilder *fb,
struct gvdb_pointer root)
{
struct gvdb_header header = { { 0, 0 }, { 0 }, { 0 }, { { 0 }, { 0 } } };
GString *result;
memset (&header, 0, sizeof (header));
if (fb->byteswap)
{
header.signature[0] = GVDB_SWAPPED_SIGNATURE0;
header.signature[1] = GVDB_SWAPPED_SIGNATURE1;
}
else
{
header.signature[0] = GVDB_SIGNATURE0;
header.signature[1] = GVDB_SIGNATURE1;
}
result = g_string_new (NULL);
header.root = root;
g_string_append_len (result, (gpointer) &header, sizeof header);
while (!g_queue_is_empty (fb->chunks))
{
FileChunk *chunk = g_queue_pop_head (fb->chunks);
if (result->len != chunk->offset)
{
gchar zero[8] = { 0, };
g_assert (chunk->offset > result->len);
g_assert (chunk->offset - result->len < 8);
g_string_append_len (result, zero, chunk->offset - result->len);
g_assert (result->len == chunk->offset);
}
g_string_append_len (result, chunk->data, chunk->size);
g_free (chunk->data);
g_slice_free (FileChunk, chunk);
}
return result;
}
gboolean
gvdb_table_write_contents (GHashTable *table,
const gchar *filename,
gboolean byteswap,
GError **error)
{
struct gvdb_pointer root;
gboolean status;
FileBuilder *fb;
GString *str;
g_return_val_if_fail (table != NULL, FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
fb = file_builder_new (byteswap);
file_builder_add_hash (fb, table, &root);
str = file_builder_serialise (fb, root);
file_builder_free (fb);
status = g_file_set_contents (filename, str->str, str->len, error);
g_string_free (str, TRUE);
return status;
}
typedef struct {
GBytes *contents; /* (owned) */
GFile *file; /* (owned) */
} WriteContentsData;
static WriteContentsData *
write_contents_data_new (GBytes *contents,
GFile *file)
{
WriteContentsData *data;
data = g_slice_new (WriteContentsData);
data->contents = g_bytes_ref (contents);
data->file = g_object_ref (file);
return data;
}
static void
write_contents_data_free (WriteContentsData *data)
{
g_bytes_unref (data->contents);
g_object_unref (data->file);
g_slice_free (WriteContentsData, data);
}
static void
replace_contents_cb (GObject *source_object,
GAsyncResult *result,
gpointer user_data)
{
GTask *task = user_data;
WriteContentsData *data = g_task_get_task_data (task);
GError *error = NULL;
g_return_if_fail (g_task_get_source_tag (task) == gvdb_table_write_contents_async);
if (!g_file_replace_contents_finish (data->file, result, NULL, &error))
g_task_return_error (task, g_steal_pointer (&error));
else
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
void
gvdb_table_write_contents_async (GHashTable *table,
const gchar *filename,
gboolean byteswap,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
struct gvdb_pointer root;
FileBuilder *fb;
WriteContentsData *data;
GString *str;
GBytes *bytes;
GFile *file;
GTask *task;
g_return_if_fail (table != NULL);
g_return_if_fail (filename != NULL);
g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
fb = file_builder_new (byteswap);
file_builder_add_hash (fb, table, &root);
str = file_builder_serialise (fb, root);
bytes = g_string_free_to_bytes (str);
file_builder_free (fb);
file = g_file_new_for_path (filename);
data = write_contents_data_new (bytes, file);
task = g_task_new (NULL, cancellable, callback, user_data);
g_task_set_task_data (task, data, (GDestroyNotify)write_contents_data_free);
g_task_set_source_tag (task, gvdb_table_write_contents_async);
g_file_replace_contents_async (file,
g_bytes_get_data (bytes, NULL),
g_bytes_get_size (bytes),
NULL, FALSE,
G_FILE_CREATE_PRIVATE,
cancellable, replace_contents_cb, g_steal_pointer (&task));
g_bytes_unref (bytes);
g_object_unref (file);
}
gboolean
gvdb_table_write_contents_finish (GHashTable *table,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (table != NULL, FALSE);
g_return_val_if_fail (g_task_is_valid (result, NULL), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
return g_task_propagate_boolean (G_TASK (result), error);
}

66
gio/gvdb/gvdb-builder.h
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@ -1,66 +0,0 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __gvdb_builder_h__
#define __gvdb_builder_h__
#include <gio/gio.h>
typedef struct _GvdbItem GvdbItem;
G_GNUC_INTERNAL
GHashTable * gvdb_hash_table_new (GHashTable *parent,
const gchar *key);
G_GNUC_INTERNAL
GvdbItem * gvdb_hash_table_insert (GHashTable *table,
const gchar *key);
G_GNUC_INTERNAL
void gvdb_hash_table_insert_string (GHashTable *table,
const gchar *key,
const gchar *value);
G_GNUC_INTERNAL
void gvdb_item_set_value (GvdbItem *item,
GVariant *value);
G_GNUC_INTERNAL
void gvdb_item_set_hash_table (GvdbItem *item,
GHashTable *table);
G_GNUC_INTERNAL
void gvdb_item_set_parent (GvdbItem *item,
GvdbItem *parent);
G_GNUC_INTERNAL
gboolean gvdb_table_write_contents (GHashTable *table,
const gchar *filename,
gboolean byteswap,
GError **error);
G_GNUC_INTERNAL
void gvdb_table_write_contents_async (GHashTable *table,
const gchar *filename,
gboolean byteswap,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
G_GNUC_INTERNAL
gboolean gvdb_table_write_contents_finish (GHashTable *table,
GAsyncResult *result,
GError **error);
#endif /* __gvdb_builder_h__ */

85
gio/gvdb/gvdb-format.h
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@ -1,85 +0,0 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __gvdb_format_h__
#define __gvdb_format_h__
#include <glib.h>
typedef struct { guint16 value; } guint16_le;
typedef struct { guint32 value; } guint32_le;
struct gvdb_pointer {
guint32_le start;
guint32_le end;
};
struct gvdb_hash_header {
guint32_le n_bloom_words;
guint32_le n_buckets;
};
struct gvdb_hash_item {
guint32_le hash_value;
guint32_le parent;
guint32_le key_start;
guint16_le key_size;
gchar type;
gchar unused;
union
{
struct gvdb_pointer pointer;
gchar direct[8];
} value;
};
struct gvdb_header {
guint32 signature[2];
guint32_le version;
guint32_le options;
struct gvdb_pointer root;
};
static inline guint32_le guint32_to_le (guint32 value) {
guint32_le result = { GUINT32_TO_LE (value) };
return result;
}
static inline guint32 guint32_from_le (guint32_le value) {
return GUINT32_FROM_LE (value.value);
}
static inline guint16_le guint16_to_le (guint16 value) {
guint16_le result = { GUINT16_TO_LE (value) };
return result;
}
static inline guint16 guint16_from_le (guint16_le value) {
return GUINT16_FROM_LE (value.value);
}
#define GVDB_SIGNATURE0 1918981703
#define GVDB_SIGNATURE1 1953390953
#define GVDB_SWAPPED_SIGNATURE0 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE0)
#define GVDB_SWAPPED_SIGNATURE1 GUINT32_SWAP_LE_BE (GVDB_SIGNATURE1)
#endif /* __gvdb_format_h__ */

736
gio/gvdb/gvdb-reader.c
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@ -1,736 +0,0 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "gvdb-reader.h"
#include "gvdb-format.h"
#include <string.h>
struct _GvdbTable {
GBytes *bytes;
const gchar *data;
gsize size;
gboolean byteswapped;
gboolean trusted;
const guint32_le *bloom_words;
guint32 n_bloom_words;
guint bloom_shift;
const guint32_le *hash_buckets;
guint32 n_buckets;
struct gvdb_hash_item *hash_items;
guint32 n_hash_items;
};
static const gchar *
gvdb_table_item_get_key (GvdbTable *file,
const struct gvdb_hash_item *item,
gsize *size)
{
guint32 start, end;
start = guint32_from_le (item->key_start);
*size = guint16_from_le (item->key_size);
end = start + *size;
if G_UNLIKELY (start > end || end > file->size)
return NULL;
return file->data + start;
}
static gconstpointer
gvdb_table_dereference (GvdbTable *file,
const struct gvdb_pointer *pointer,
gint alignment,
gsize *size)
{
guint32 start, end;
start = guint32_from_le (pointer->start);
end = guint32_from_le (pointer->end);
if G_UNLIKELY (start > end || end > file->size || start & (alignment - 1))
return NULL;
*size = end - start;
return file->data + start;
}
static void
gvdb_table_setup_root (GvdbTable *file,
const struct gvdb_pointer *pointer)
{
const struct gvdb_hash_header *header;
guint32 n_bloom_words;
guint32 n_buckets;
gsize size;
header = gvdb_table_dereference (file, pointer, 4, &size);
if G_UNLIKELY (header == NULL || size < sizeof *header)
return;
size -= sizeof *header;
n_bloom_words = guint32_from_le (header->n_bloom_words);
n_buckets = guint32_from_le (header->n_buckets);
n_bloom_words &= (1u << 27) - 1;
if G_UNLIKELY (n_bloom_words * sizeof (guint32_le) > size)
return;
file->bloom_words = (gpointer) (header + 1);
size -= n_bloom_words * sizeof (guint32_le);
file->n_bloom_words = n_bloom_words;
if G_UNLIKELY (n_buckets > G_MAXUINT / sizeof (guint32_le) ||
n_buckets * sizeof (guint32_le) > size)
return;
file->hash_buckets = file->bloom_words + file->n_bloom_words;
size -= n_buckets * sizeof (guint32_le);
file->n_buckets = n_buckets;
if G_UNLIKELY (size % sizeof (struct gvdb_hash_item))
return;
file->hash_items = (gpointer) (file->hash_buckets + n_buckets);
file->n_hash_items = size / sizeof (struct gvdb_hash_item);
}
/**
* gvdb_table_new_from_bytes:
* @bytes: the #GBytes with the data
* @trusted: if the contents of @bytes are trusted
* @error: %NULL, or a pointer to a %NULL #GError
*
* Creates a new #GvdbTable from the contents of @bytes.
*
* This call can fail if the header contained in @bytes is invalid or if @bytes
* is empty; if so, %G_FILE_ERROR_INVAL will be returned.
*
* You should call gvdb_table_free() on the return result when you no
* longer require it.
*
* Returns: a new #GvdbTable
**/
GvdbTable *
gvdb_table_new_from_bytes (GBytes *bytes,
gboolean trusted,
GError **error)
{
const struct gvdb_header *header;
GvdbTable *file;
file = g_slice_new0 (GvdbTable);
file->bytes = g_bytes_ref (bytes);
file->data = g_bytes_get_data (bytes, &file->size);
file->trusted = trusted;
if (file->size < sizeof (struct gvdb_header))
goto invalid;
header = (gpointer) file->data;
if (header->signature[0] == GVDB_SIGNATURE0 &&
header->signature[1] == GVDB_SIGNATURE1 &&
guint32_from_le (header->version) == 0)
file->byteswapped = FALSE;
else if (header->signature[0] == GVDB_SWAPPED_SIGNATURE0 &&
header->signature[1] == GVDB_SWAPPED_SIGNATURE1 &&
guint32_from_le (header->version) == 0)
file->byteswapped = TRUE;
else
goto invalid;
gvdb_table_setup_root (file, &header->root);
return file;
invalid:
g_set_error_literal (error, G_FILE_ERROR, G_FILE_ERROR_INVAL, "invalid gvdb header");
g_bytes_unref (file->bytes);
g_slice_free (GvdbTable, file);
return NULL;
}
/**
* gvdb_table_new:
* @filename: a filename
* @trusted: if the contents of @bytes are trusted
* @error: %NULL, or a pointer to a %NULL #GError
*
* Creates a new #GvdbTable using the #GMappedFile for @filename as the
* #GBytes.
*
* This function will fail if the file cannot be opened.
* In that case, the #GError that is returned will be an error from
* g_mapped_file_new().
*
* An empty or corrupt file will result in %G_FILE_ERROR_INVAL.
*
* Returns: a new #GvdbTable
**/
GvdbTable *
gvdb_table_new (const gchar *filename,
gboolean trusted,
GError **error)
{
GMappedFile *mapped;
GvdbTable *table;
GBytes *bytes;
mapped = g_mapped_file_new (filename, FALSE, error);
if (!mapped)
return NULL;
bytes = g_mapped_file_get_bytes (mapped);
table = gvdb_table_new_from_bytes (bytes, trusted, error);
g_mapped_file_unref (mapped);
g_bytes_unref (bytes);
g_prefix_error (error, "%s: ", filename);
return table;
}
static gboolean
gvdb_table_bloom_filter (GvdbTable *file,
guint32 hash_value)
{
guint32 word, mask;
if (file->n_bloom_words == 0)
return TRUE;
word = (hash_value / 32) % file->n_bloom_words;
mask = 1 << (hash_value & 31);
mask |= 1 << ((hash_value >> file->bloom_shift) & 31);
return (guint32_from_le (file->bloom_words[word]) & mask) == mask;
}
static gboolean
gvdb_table_check_name (GvdbTable *file,
struct gvdb_hash_item *item,
const gchar *key,
guint key_length)
{
const gchar *this_key;
gsize this_size;
guint32 parent;
this_key = gvdb_table_item_get_key (file, item, &this_size);
if G_UNLIKELY (this_key == NULL || this_size > key_length)
return FALSE;
key_length -= this_size;
if G_UNLIKELY (memcmp (this_key, key + key_length, this_size) != 0)
return FALSE;
parent = guint32_from_le (item->parent);
if (key_length == 0 && parent == 0xffffffffu)
return TRUE;
if G_LIKELY (parent < file->n_hash_items && this_size > 0)
return gvdb_table_check_name (file,
&file->hash_items[parent],
key, key_length);
return FALSE;
}
static const struct gvdb_hash_item *
gvdb_table_lookup (GvdbTable *file,
const gchar *key,
gchar type)
{
guint32 hash_value = 5381;
guint key_length;
guint32 bucket;
guint32 lastno;
guint32 itemno;
if G_UNLIKELY (file->n_buckets == 0 || file->n_hash_items == 0)
return NULL;
for (key_length = 0; key[key_length]; key_length++)
hash_value = (hash_value * 33) + ((signed char *) key)[key_length];
if (!gvdb_table_bloom_filter (file, hash_value))
return NULL;
bucket = hash_value % file->n_buckets;
itemno = guint32_from_le (file->hash_buckets[bucket]);
if (bucket == file->n_buckets - 1 ||
(lastno = guint32_from_le(file->hash_buckets[bucket + 1])) > file->n_hash_items)
lastno = file->n_hash_items;
while G_LIKELY (itemno < lastno)
{
struct gvdb_hash_item *item = &file->hash_items[itemno];
if (hash_value == guint32_from_le (item->hash_value))
if G_LIKELY (gvdb_table_check_name (file, item, key, key_length))
if G_LIKELY (item->type == type)
return item;
itemno++;
}
return NULL;
}
static gboolean
gvdb_table_list_from_item (GvdbTable *table,
const struct gvdb_hash_item *item,
const guint32_le **list,
guint *length)
{
gsize size;
*list = gvdb_table_dereference (table, &item->value.pointer, 4, &size);
if G_LIKELY (*list == NULL || size % 4)
return FALSE;
*length = size / 4;
return TRUE;
}
/**
* gvdb_table_get_names:
* @table: a #GvdbTable
* @length: (out) (optional): the number of items returned, or %NULL
*
* Gets a list of all names contained in @table.
*
* No call to gvdb_table_get_table(), gvdb_table_list() or
* gvdb_table_get_value() will succeed unless it is for one of the
* names returned by this function.
*
* Note that some names that are returned may still fail for all of the
* above calls in the case of the corrupted file. Note also that the
* returned strings may not be utf8.
*
* Returns: (array length=length): a %NULL-terminated list of strings, of length @length
**/
gchar **
gvdb_table_get_names (GvdbTable *table,
gsize *length)
{
gchar **names;
guint n_names;
guint filled;
guint total;
guint i;
/* We generally proceed by iterating over the list of items in the
* hash table (in order of appearance) recording them into an array.
*
* Each item has a parent item (except root items). The parent item
* forms part of the name of the item. We could go fetching the
* parent item chain at the point that we encounter each item but then
* we would need to implement some sort of recursion along with checks
* for self-referential items.
*
* Instead, we do a number of passes. Each pass will build up one
* level of names (starting from the root). We continue to do passes
* until no more items are left. The first pass will only add root
* items and each further pass will only add items whose direct parent
* is an item added in the immediately previous pass. It's also
* possible that items get filled if they follow their parent within a
* particular pass.
*
* At most we will have a number of passes equal to the depth of the
* tree. Self-referential items will never be filled in (since their
* parent will have never been filled in). We continue until we have
* a pass that fills in no additional items.
*
* This takes an O(n) algorithm and turns it into O(n*m) where m is
* the depth of the tree, but typically the tree won't be very
* deep and the constant factor of this algorithm is lower (and the
* complexity of coding it, as well).
*/
n_names = table->n_hash_items;
names = g_new0 (gchar *, n_names + 1);
/* 'names' starts out all-NULL. On each pass we record the number
* of items changed from NULL to non-NULL in 'filled' so we know if we
* should repeat the loop. 'total' counts the total number of items
* filled. If 'total' ends up equal to 'n_names' then we know that
* 'names' has been completely filled.
*/
total = 0;
do
{
/* Loop until we have filled no more entries */
filled = 0;
for (i = 0; i < n_names; i++)
{
const struct gvdb_hash_item *item = &table->hash_items[i];
const gchar *name;
gsize name_length;
guint32 parent;
/* already got it on a previous pass */
if (names[i] != NULL)
continue;
parent = guint32_from_le (item->parent);
if (parent == 0xffffffffu)
{
/* it's a root item */
name = gvdb_table_item_get_key (table, item, &name_length);
if (name != NULL)
{
names[i] = g_strndup (name, name_length);
filled++;
}
}
else if (parent < n_names && names[parent] != NULL)
{
/* It's a non-root item whose parent was filled in already.
*
* Calculate the name of this item by combining it with
* its parent name.
*/
name = gvdb_table_item_get_key (table, item, &name_length);
if (name != NULL)
{
const gchar *parent_name = names[parent];
gsize parent_length;
gchar *fullname;
parent_length = strlen (parent_name);
fullname = g_malloc (parent_length + name_length + 1);
memcpy (fullname, parent_name, parent_length);
memcpy (fullname + parent_length, name, name_length);
fullname[parent_length + name_length] = '\0';
names[i] = fullname;
filled++;
}
}
}
total += filled;
}
while (filled && total < n_names);
/* If the table was corrupted then 'names' may have holes in it.
* Collapse those.
*/
if G_UNLIKELY (total != n_names)
{
GPtrArray *fixed_names;
fixed_names = g_ptr_array_sized_new (n_names + 1 /* NULL terminator */);
for (i = 0; i < n_names; i++)
if (names[i] != NULL)
g_ptr_array_add (fixed_names, names[i]);
g_free (names);
n_names = fixed_names->len;
g_ptr_array_add (fixed_names, NULL);
names = (gchar **) g_ptr_array_free (fixed_names, FALSE);
}
if (length)
{
G_STATIC_ASSERT (sizeof (*length) >= sizeof (n_names));
*length = n_names;
}
return names;
}
/**
* gvdb_table_list:
* @file: a #GvdbTable
* @key: a string
*
* List all of the keys that appear below @key. The nesting of keys
* within the hash file is defined by the program that created the hash
* file. One thing is constant: each item in the returned array can be
* concatenated to @key to obtain the full name of that key.
*
* It is not possible to tell from this function if a given key is
* itself a path, a value, or another hash table; you are expected to
* know this for yourself.
*
* You should call g_strfreev() on the return result when you no longer
* require it.
*
* Returns: a %NULL-terminated string array
**/
gchar **
gvdb_table_list (GvdbTable *file,
const gchar *key)
{
const struct gvdb_hash_item *item;
const guint32_le *list;
gchar **strv;
guint length;
guint i;
if ((item = gvdb_table_lookup (file, key, 'L')) == NULL)
return NULL;
if (!gvdb_table_list_from_item (file, item, &list, &length))
return NULL;
strv = g_new (gchar *, length + 1);
for (i = 0; i < length; i++)
{
guint32 itemno = guint32_from_le (list[i]);
if (itemno < file->n_hash_items)
{
const struct gvdb_hash_item *item;
const gchar *string;
gsize strsize;
item = file->hash_items + itemno;
string = gvdb_table_item_get_key (file, item, &strsize);
if (string != NULL)
strv[i] = g_strndup (string, strsize);
else
strv[i] = g_malloc0 (1);
}
else
strv[i] = g_malloc0 (1);
}
strv[i] = NULL;
return strv;
}
/**
* gvdb_table_has_value:
* @file: a #GvdbTable
* @key: a string
*
* Checks for a value named @key in @file.
*
* Note: this function does not consider non-value nodes (other hash
* tables, for example).
*
* Returns: %TRUE if @key is in the table
**/
gboolean
gvdb_table_has_value (GvdbTable *file,
const gchar *key)
{
static const struct gvdb_hash_item *item;
gsize size;
item = gvdb_table_lookup (file, key, 'v');
if (item == NULL)
return FALSE;
return gvdb_table_dereference (file, &item->value.pointer, 8, &size) != NULL;
}
static GVariant *
gvdb_table_value_from_item (GvdbTable *table,
const struct gvdb_hash_item *item)
{
GVariant *variant, *value;
gconstpointer data;
GBytes *bytes;
gsize size;
data = gvdb_table_dereference (table, &item->value.pointer, 8, &size);
if G_UNLIKELY (data == NULL)
return NULL;
bytes = g_bytes_new_from_bytes (table->bytes, ((gchar *) data) - table->data, size);
variant = g_variant_new_from_bytes (G_VARIANT_TYPE_VARIANT, bytes, table->trusted);
value = g_variant_get_variant (variant);
g_variant_unref (variant);
g_bytes_unref (bytes);
return value;
}
/**
* gvdb_table_get_value:
* @file: a #GvdbTable
* @key: a string
*
* Looks up a value named @key in @file.
*
* If the value is not found then %NULL is returned. Otherwise, a new
* #GVariant instance is returned. The #GVariant does not depend on the
* continued existence of @file.
*
* You should call g_variant_unref() on the return result when you no
* longer require it.
*
* Returns: a #GVariant, or %NULL
**/
GVariant *
gvdb_table_get_value (GvdbTable *file,
const gchar *key)
{
const struct gvdb_hash_item *item;
GVariant *value;
if ((item = gvdb_table_lookup (file, key, 'v')) == NULL)
return NULL;
value = gvdb_table_value_from_item (file, item);
if (value && file->byteswapped)
{
GVariant *tmp;
tmp = g_variant_byteswap (value);
g_variant_unref (value);
value = tmp;
}
return value;
}
/**
* gvdb_table_get_raw_value:
* @table: a #GvdbTable
* @key: a string
*
* Looks up a value named @key in @file.
*
* This call is equivalent to gvdb_table_get_value() except that it
* never byteswaps the value.
*
* Returns: a #GVariant, or %NULL
**/
GVariant *
gvdb_table_get_raw_value (GvdbTable *table,
const gchar *key)
{
const struct gvdb_hash_item *item;
if ((item = gvdb_table_lookup (table, key, 'v')) == NULL)
return NULL;
return gvdb_table_value_from_item (table, item);
}
/**
* gvdb_table_get_table:
* @file: a #GvdbTable
* @key: a string
*
* Looks up the hash table named @key in @file.
*
* The toplevel hash table in a #GvdbTable can contain reference to
* child hash tables (and those can contain further references...).
*
* If @key is not found in @file then %NULL is returned. Otherwise, a
* new #GvdbTable is returned, referring to the child hashtable as
* contained in the file. This newly-created #GvdbTable does not depend
* on the continued existence of @file.
*
* You should call gvdb_table_free() on the return result when you no
* longer require it.
*
* Returns: a new #GvdbTable, or %NULL
**/
GvdbTable *
gvdb_table_get_table (GvdbTable *file,
const gchar *key)
{
const struct gvdb_hash_item *item;
GvdbTable *new;
item = gvdb_table_lookup (file, key, 'H');
if (item == NULL)
return NULL;
new = g_slice_new0 (GvdbTable);
new->bytes = g_bytes_ref (file->bytes);
new->byteswapped = file->byteswapped;
new->trusted = file->trusted;
new->data = file->data;
new->size = file->size;
gvdb_table_setup_root (new, &item->value.pointer);
return new;
}
/**
* gvdb_table_free:
* @file: a #GvdbTable
*
* Frees @file.
**/
void
gvdb_table_free (GvdbTable *file)
{
g_bytes_unref (file->bytes);
g_slice_free (GvdbTable, file);
}
/**
* gvdb_table_is_valid:
* @table: a #GvdbTable
*
* Checks if the table is still valid.
*
* An on-disk GVDB can be marked as invalid. This happens when the file
* has been replaced. The appropriate action is typically to reopen the
* file.
*
* Returns: %TRUE if @table is still valid
**/
gboolean
gvdb_table_is_valid (GvdbTable *table)
{
return !!*table->data;
}

78
gio/gvdb/gvdb-reader.h
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@ -1,78 +0,0 @@
/*
* Copyright © 2010 Codethink Limited
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __gvdb_reader_h__
#define __gvdb_reader_h__
#include <glib.h>
/* We cannot enable the weak attribute unconditionally here because both
* gvdb/gvdb-reader.c and tests/dconf-mock-gvdb.c include this file. The
* intention of using weak symbols here is to allow the latter to override
* functions defined in the former, so functions in tests/dconf-mock-gvdb.c
* must have strong bindings. */
#ifdef GVDB_USE_WEAK_SYMBOLS
# ifdef __GNUC__
# define GVDB_GNUC_WEAK __attribute__((weak))
# else
# define GVDB_GNUC_WEAK
# endif
#else
# define GVDB_GNUC_WEAK
#endif
typedef struct _GvdbTable GvdbTable;
G_BEGIN_DECLS
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_new_from_bytes (GBytes *bytes,
gboolean trusted,
GError **error);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_new (const gchar *filename,
gboolean trusted,
GError **error);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
void gvdb_table_free (GvdbTable *table);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gchar ** gvdb_table_get_names (GvdbTable *table,
gsize *length);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gchar ** gvdb_table_list (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GvdbTable * gvdb_table_get_table (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GVariant * gvdb_table_get_raw_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
GVariant * gvdb_table_get_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gboolean gvdb_table_has_value (GvdbTable *table,
const gchar *key);
G_GNUC_INTERNAL GVDB_GNUC_WEAK
gboolean gvdb_table_is_valid (GvdbTable *table);
G_END_DECLS
#endif /* __gvdb_reader_h__ */

57
gio/gvdb/gvdb.doap
View File

@ -1,57 +0,0 @@
<?xml version='1.0' encoding='utf-8'?>
<Project xmlns='http://usefulinc.com/ns/doap#'
xmlns:foaf='http://xmlns.com/foaf/0.1/'
xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
xmlns:gnome='http://api.gnome.org/doap-extensions#'>
<name xml:lang='en'>gvdb</name>
<shortdesc xml:lang='en'>GVariant Database file</shortdesc>
<description xml:lang='en'>
A simple database file format that stores a mapping from strings to
GVariant values in a way that is extremely efficient for lookups.
The database is written once and can not be modified.
Included here is reader code and a first-pass implementation of a
writer (that does not currently produce particularly optimised
output).
It is intended that this code be used by copy-pasting into your
project or by making use of git-merge(1).
</description>
<maintainer>
<foaf:Person>
<foaf:name>Matthias Clasen</foaf:name>
<foaf:mbox rdf:resource="mailto:mclasen@redhat.com"/>
<gnome:userid>matthiasc</gnome:userid>
</foaf:Person>
</maintainer>
<maintainer>
<foaf:Person>
<foaf:name>Allison Ryan Lortie</foaf:name>
<foaf:mbox rdf:resource="mailto:desrt@desrt.ca"/>
<gnome:userid>desrt</gnome:userid>
</foaf:Person>
</maintainer>
<maintainer>
<foaf:Person>
<foaf:name>Philip Withnall</foaf:name>
<foaf:mbox rdf:resource="mailto:philip@tecnocode.co.uk"/>
<foaf:mbox rdf:resource="mailto:withnall@endlessm.com"/>
<gnome:userid>pwithnall</gnome:userid>
</foaf:Person>
</maintainer>
<maintainer>
<foaf:Person>
<foaf:name>Emmanuele Bassi</foaf:name>
<foaf:mbox rdf:resource="mailto:ebassi@gnome.org"/>
<gnome:userid>ebassi</gnome:userid>
</foaf:Person>
</maintainer>
</Project>

12
gio/meson.build
View File

@ -261,7 +261,6 @@ settings_headers = files(
)
settings_sources = files(
'gvdb/gvdb-reader.c',
'gdelayedsettingsbackend.c',
'gkeyfilesettingsbackend.c',
'gmemorysettingsbackend.c',
@ -812,7 +811,8 @@ libgio = library('gio-2.0',
link_with: internal_deps,
dependencies : [libz_dep, libdl_dep, libmount_dep, libglib_dep,
libgobject_dep, libgmodule_dep, selinux_dep, xattr_dep,
platform_deps, network_libs, libsysprof_capture_dep],
platform_deps, network_libs, libsysprof_capture_dep,
gioenumtypes_dep, gvdb_dep],
c_args : gio_c_args,
objc_args : gio_c_args,
# intl.lib is not compatible with SAFESEH
@ -961,19 +961,19 @@ gio_querymodules = executable('gio-querymodules', 'gio-querymodules.c', 'giomodu
dependencies : [libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep])
glib_compile_schemas = executable('glib-compile-schemas',
['gvdb/gvdb-builder.c', 'glib-compile-schemas.c'],
['glib-compile-schemas.c'],
install : true,
# intl.lib is not compatible with SAFESEH
link_args : noseh_link_args,
dependencies : [libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep])
dependencies : [libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep, gvdb_dep])
glib_compile_resources = executable('glib-compile-resources',
[gconstructor_as_data_h, 'gvdb/gvdb-builder.c', 'glib-compile-resources.c'],
[gconstructor_as_data_h, 'glib-compile-resources.c'],
install : true,
c_args : gio_c_args,
# intl.lib is not compatible with SAFESEH
link_args : noseh_link_args,
dependencies : [libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep])
dependencies : [libgio_dep, libgobject_dep, libgmodule_dep, libglib_dep, gvdb_dep])
# Cannot override those programs in cross compilation case because they are
# native executables that cannot be run on the build machine.

3
meson.build
View File

@ -2033,6 +2033,9 @@ else
use_pcre_static_flag = false
endif
# Import the gvdb sources as a subproject to avoid having the copylib in-tree
gvdb_dep = dependency('gvdb')
libm = cc.find_library('m', required : false)
libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])

1
subprojects/gvdb Submodule

@ -0,0 +1 @@
Subproject commit 0854af0fdb6d527a8d1999835ac2c5059976c210

8
subprojects/gvdb.wrap Normal file
View File

@ -0,0 +1,8 @@
[wrap-git]
directory=gvdb
url=https://gitlab.gnome.org/GNOME/gvdb.git
revision=0854af0fdb6d527a8d1999835ac2c5059976c210
depth=1
[provide]
dependency_names = gvdb