Crate lmdb_sys

Structs

• MDB_cursor
• MDB_env
• MDB_envinfo
  @brief Information about the environment
• MDB_stat
  @brief Statistics for a database in the environment
• MDB_txn
• MDB_val
  @brief Generic structure used for passing keys and data in and out of the database.

Constants

• MDB_APPEND
• MDB_APPENDDUP
• MDB_BAD_DBI
• MDB_BAD_RSLOT
• MDB_BAD_TXN
• MDB_BAD_VALSIZE
• MDB_CORRUPTED
• MDB_CP_COMPACT
• MDB_CREATE
• MDB_CURRENT
• MDB_CURSOR_FULL
• MDB_DBS_FULL
• MDB_DUPFIXED
• MDB_DUPSORT
• MDB_FIRST
  < Position at first key/data item
• MDB_FIRST_DUP
  < Position at first data item of current key. Only for #MDB_DUPSORT
• MDB_FIXEDMAP
• MDB_GET_BOTH
  < Position at key/data pair. Only for #MDB_DUPSORT
• MDB_GET_BOTH_RANGE
  < position at key, nearest data. Only for #MDB_DUPSORT
• MDB_GET_CURRENT
  < Return key/data at current cursor position
• MDB_GET_MULTIPLE
  < Return up to a page of duplicate data items from current cursor position. Move cursor to prepare for #MDB_NEXT_MULTIPLE. Only for #MDB_DUPFIXED
• MDB_INCOMPATIBLE
• MDB_INTEGERDUP
• MDB_INTEGERKEY
• MDB_INVALID
• MDB_KEYEXIST
• MDB_LAST
  < Position at last key/data item
• MDB_LAST_DUP
  < Position at last data item of current key. Only for #MDB_DUPSORT
• MDB_LAST_ERRCODE
• MDB_MAPASYNC
• MDB_MAP_FULL
• MDB_MAP_RESIZED
• MDB_MULTIPLE
• MDB_NEXT
  < Position at next data item
• MDB_NEXT_DUP
  < Position at next data item of current key. Only for #MDB_DUPSORT
• MDB_NEXT_MULTIPLE
  < Return up to a page of duplicate data items from next cursor position. Move cursor to prepare for #MDB_NEXT_MULTIPLE. Only for #MDB_DUPFIXED
• MDB_NEXT_NODUP
  < Position at first data item of next key
• MDB_NODUPDATA
• MDB_NOLOCK
• MDB_NOMEMINIT
• MDB_NOMETASYNC
• MDB_NOOVERWRITE
• MDB_NORDAHEAD
• MDB_NOSUBDIR
• MDB_NOSYNC
• MDB_NOTFOUND
• MDB_NOTLS
• MDB_PAGE_FULL
• MDB_PAGE_NOTFOUND
• MDB_PANIC
• MDB_PREV
  < Position at previous data item
• MDB_PREV_DUP
  < Position at previous data item of current key. Only for #MDB_DUPSORT
• MDB_PREV_MULTIPLE
  < Position at previous page and return up to a page of duplicate data items. Only for #MDB_DUPFIXED
• MDB_PREV_NODUP
  < Position at last data item of previous key
• MDB_RDONLY
• MDB_READERS_FULL
• MDB_RESERVE
• MDB_REVERSEDUP
• MDB_REVERSEKEY
• MDB_SET
  < Position at specified key
• MDB_SET_KEY
  < Position at specified key, return key + data
• MDB_SET_RANGE
  < Position at first key greater than or equal to specified key.
• MDB_SUCCESS
• MDB_TLS_FULL
• MDB_TXN_FULL
• MDB_VERSION_DATE
• MDB_VERSION_MAJOR
• MDB_VERSION_MINOR
• MDB_VERSION_MISMATCH
• MDB_VERSION_PATCH
• MDB_WRITEMAP

Functions

• mdb_cmp^⚠
  @brief Compare two data items according to a particular database.
• mdb_cursor_close^⚠
  @brief Close a cursor handle.
• mdb_cursor_count^⚠
  @brief Return count of duplicates for current key.
• mdb_cursor_dbi^⚠
  @brief Return the cursor’s database handle.
• mdb_cursor_del^⚠
  @brief Delete current key/data pair
• mdb_cursor_get^⚠
  @brief Retrieve by cursor.
• mdb_cursor_open^⚠
  @brief Create a cursor handle.
• mdb_cursor_put^⚠
  @brief Store by cursor.
• mdb_cursor_renew^⚠
  @brief Renew a cursor handle.
• mdb_cursor_txn^⚠
  @brief Return the cursor’s transaction handle.
• mdb_dbi_close^⚠
  @brief Close a database handle. Normally unnecessary. Use with care:
• mdb_dbi_flags^⚠
  @brief Retrieve the DB flags for a database handle.
• mdb_dbi_open^⚠
  @brief Open a database in the environment.
• mdb_dcmp^⚠
  @brief Compare two data items according to a particular database.
• mdb_del^⚠
  @brief Delete items from a database.
• mdb_drop^⚠
  @brief Empty or delete+close a database.
• mdb_env_close^⚠
  @brief Close the environment and release the memory map.
• mdb_env_copy^⚠
  @brief Copy an LMDB environment to the specified path.
• mdb_env_copy2^⚠
  @brief Copy an LMDB environment to the specified path, with options.
• mdb_env_copyfd^⚠
  @brief Copy an LMDB environment to the specified file descriptor.
• mdb_env_copyfd2^⚠
  @brief Copy an LMDB environment to the specified file descriptor, with options.
• mdb_env_create^⚠
  @brief Create an LMDB environment handle.
• mdb_env_get_fd^⚠
  @brief Return the filedescriptor for the given environment.
• mdb_env_get_flags^⚠
  @brief Get environment flags.
• mdb_env_get_maxkeysize^⚠
  @brief Get the maximum size of keys and #MDB_DUPSORT data we can write.
• mdb_env_get_maxreaders^⚠
  @brief Get the maximum number of threads/reader slots for the environment.
• mdb_env_get_path^⚠
  @brief Return the path that was used in #mdb_env_open().
• mdb_env_get_userctx^⚠
  @brief Get the application information associated with the #MDB_env.
• mdb_env_info^⚠
  @brief Return information about the LMDB environment.
• mdb_env_open^⚠
  @brief Open an environment handle.
• mdb_env_set_assert^⚠
  Set or reset the assert() callback of the environment. Disabled if liblmdb is built with NDEBUG. @note This hack should become obsolete as lmdb’s error handling matures. @param[in] env An environment handle returned by #mdb_env_create(). @param[in] func An #MDB_assert_func function, or 0. @return A non-zero error value on failure and 0 on success.
• mdb_env_set_flags^⚠
  @brief Set environment flags.
• mdb_env_set_mapsize^⚠
  @brief Set the size of the memory map to use for this environment.
• mdb_env_set_maxdbs^⚠
  @brief Set the maximum number of named databases for the environment.
• mdb_env_set_maxreaders^⚠
  @brief Set the maximum number of threads/reader slots for the environment.
• mdb_env_set_userctx^⚠
  @brief Set application information associated with the #MDB_env.
• mdb_env_stat^⚠
  @brief Return statistics about the LMDB environment.
• mdb_env_sync^⚠
  @brief Flush the data buffers to disk.
• mdb_get^⚠
  @brief Get items from a database.
• mdb_put^⚠
  @brief Store items into a database.
• mdb_reader_check^⚠
  @brief Check for stale entries in the reader lock table.
• mdb_reader_list^⚠
  @brief Dump the entries in the reader lock table.
• mdb_set_compare^⚠
  @brief Set a custom key comparison function for a database.
• mdb_set_dupsort^⚠
  @brief Set a custom data comparison function for a #MDB_DUPSORT database.
• mdb_set_relctx^⚠
  @brief Set a context pointer for a #MDB_FIXEDMAP database’s relocation function.
• mdb_set_relfunc^⚠
  @brief Set a relocation function for a #MDB_FIXEDMAP database.
• mdb_stat^⚠
  @brief Retrieve statistics for a database.
• mdb_strerror^⚠
  @brief Return a string describing a given error code.
• mdb_txn_abort^⚠
  @brief Abandon all the operations of the transaction instead of saving them.
• mdb_txn_begin^⚠
  @brief Create a transaction for use with the environment.
• mdb_txn_commit^⚠
  @brief Commit all the operations of a transaction into the database.
• mdb_txn_env^⚠
  @brief Returns the transaction’s #MDB_env
• mdb_txn_id^⚠
  @brief Return the transaction’s ID.
• mdb_txn_renew^⚠
  @brief Renew a read-only transaction.
• mdb_txn_reset^⚠
  @brief Reset a read-only transaction.
• mdb_version^⚠
  @brief Return the LMDB library version information.

Type Aliases

• MDB_assert_func
  @brief A callback function for most LMDB assert() failures, called before printing the message and aborting.
• MDB_cmp_func
  @brief A callback function used to compare two keys in a database
• MDB_cursor_op
  @brief Cursor Get operations.
• MDB_dbi
  @brief A handle for an individual database in the DB environment.
• MDB_msg_func
  @brief A callback function used to print a message from the library.
• MDB_rel_func
  @brief A callback function used to relocate a position-dependent data item in a fixed-address database.
• mdb_filehandle_t
• mdb_mode_t