Matthew Leeds
f31087137e
When building the OstreeBloom code against old versions of glib, we have to have the libglnx headers included so that it defines G_DEFINE_AUTOPTR_CLEANUP_FUNC and friends for us. This is similarly true for test-repo-finder-mount.c which indirectly includes ostree-autocleanups.h. Closes: #1605 Approved by: cgwalters
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*
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* Copyright © 2017 Endless Mobile, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.0+
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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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors:
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* - Philip Withnall <withnall@endlessm.com>
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*/
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#pragma once
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#include <gio/gio.h>
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#include <glib.h>
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#include <glib-object.h>
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#include "libglnx.h"
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G_BEGIN_DECLS
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/**
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* OstreeBloom:
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*
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* An implementation of a [bloom filter](https://en.wikipedia.org/wiki/Bloom_filter)
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* which is suitable for building a filter and looking keys up in an existing
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* filter.
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*
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* Since: 2017.8
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*/
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typedef struct _OstreeBloom OstreeBloom;
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/**
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* OstreeBloomHashFunc:
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* @element: a pointer to the element to hash
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* @k: hash function parameter
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*
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* Function prototype for a
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* [universal hash function](https://en.wikipedia.org/wiki/Universal_hashing),
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* parameterised on @k, which hashes @element to a #guint64 hash value.
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*
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* It is up to the implementer of the hash function whether %NULL is valid for
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* @element.
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*
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* Since: 2017.8
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*/
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typedef guint64 (*OstreeBloomHashFunc) (gconstpointer element,
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guint8 k);
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#define OSTREE_TYPE_BLOOM (ostree_bloom_get_type ())
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G_GNUC_INTERNAL
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GType ostree_bloom_get_type (void);
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G_GNUC_INTERNAL
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OstreeBloom *ostree_bloom_new (gsize n_bytes,
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guint8 k,
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OstreeBloomHashFunc hash_func);
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G_GNUC_INTERNAL
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OstreeBloom *ostree_bloom_new_from_bytes (GBytes *bytes,
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guint8 k,
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OstreeBloomHashFunc hash_func);
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G_GNUC_INTERNAL
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OstreeBloom *ostree_bloom_ref (OstreeBloom *bloom);
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G_GNUC_INTERNAL
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void ostree_bloom_unref (OstreeBloom *bloom);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (OstreeBloom, ostree_bloom_unref)
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G_GNUC_INTERNAL
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gboolean ostree_bloom_maybe_contains (OstreeBloom *bloom,
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gconstpointer element);
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G_GNUC_INTERNAL
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GBytes *ostree_bloom_seal (OstreeBloom *bloom);
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G_GNUC_INTERNAL
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void ostree_bloom_add_element (OstreeBloom *bloom,
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gconstpointer element);
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G_GNUC_INTERNAL
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gsize ostree_bloom_get_size (OstreeBloom *bloom);
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G_GNUC_INTERNAL
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guint8 ostree_bloom_get_k (OstreeBloom *bloom);
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G_GNUC_INTERNAL
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OstreeBloomHashFunc ostree_bloom_get_hash_func (OstreeBloom *bloom);
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G_GNUC_INTERNAL
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guint64 ostree_str_bloom_hash (gconstpointer element,
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guint8 k);
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G_END_DECLS
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