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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:53:35 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:53:35 +0000 |
commit | 69c6a41ffb878ef98c9378ed4b1634a404cfaa7f (patch) | |
tree | b2a4f704565d62fbb129ab9dc3b35977c50e6e7f /src/libknot/db/db_lmdb.h | |
parent | Initial commit. (diff) | |
download | knot-upstream.tar.xz knot-upstream.zip |
Adding upstream version 2.7.6.upstream/2.7.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libknot/db/db_lmdb.h')
-rw-r--r-- | src/libknot/db/db_lmdb.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/libknot/db/db_lmdb.h b/src/libknot/db/db_lmdb.h new file mode 100644 index 0000000..d0213cf --- /dev/null +++ b/src/libknot/db/db_lmdb.h @@ -0,0 +1,71 @@ +/* Copyright (C) 2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ +/*! + * \file + * + * \addtogroup db + * @{ + */ + +#pragma once + +#include "libknot/db/db.h" + +/* Defines. */ +#define KNOT_DB_LMDB_MAPSIZE (100 * 1024 * 1024) + +/* LMDB specific flags. */ +extern const unsigned KNOT_DB_LMDB_NOTLS; +extern const unsigned KNOT_DB_LMDB_RDONLY; +extern const unsigned KNOT_DB_LMDB_INTEGERKEY; +extern const unsigned KNOT_DB_LMDB_NOSYNC; +extern const unsigned KNOT_DB_LMDB_WRITEMAP; +extern const unsigned KNOT_DB_LMDB_MAPASYNC; +extern const unsigned KNOT_DB_LMDB_DUPSORT; + +/* Native options. */ +struct knot_db_lmdb_opts { + const char *path; /*!< Database environment path. */ + const char *dbname; /*!< Database name (or NULL). */ + size_t mapsize; /*!< Environment map size. */ + unsigned maxdbs; /*!< Maximum number of databases in the env. */ + unsigned maxreaders; /*!< Maximum number of concurrent readers */ + struct { + unsigned env; /*!< Environment flags. */ + unsigned db; /*!< Database flags. */ + } flags; +}; + +/* Default options. */ +#define KNOT_DB_LMDB_OPTS_INITIALIZER { \ + NULL, NULL, \ + KNOT_DB_LMDB_MAPSIZE, \ + 0, \ + 126, /* = contrib/lmdb/mdb.c DEFAULT_READERS */ \ + { 0, 0 } \ +} + +const knot_db_api_t *knot_db_lmdb_api(void); + +/* LMDB specific operations. */ +int knot_db_lmdb_del_exact(knot_db_txn_t *txn, knot_db_val_t *key, knot_db_val_t *val); +int knot_db_lmdb_txn_begin(knot_db_t *db, knot_db_txn_t *txn, knot_db_txn_t *parent, + unsigned flags); +int knot_db_lmdb_iter_del(knot_db_iter_t *iter); +size_t knot_db_lmdb_get_mapsize(knot_db_t *db); +size_t knot_db_lmdb_get_usage(knot_db_t *db); + +/*! @} */ |