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Rename MDB -> LMDB
Integrate tool manpages
incre
Howard Chu 11 years ago
parent ca47c2af1f
commit 9a4ef8406e
3 changed files with 57 additions and 27 deletions
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  1. 4
      libraries/liblmdb/Doxyfile
  2. 58
      libraries/liblmdb/lmdb.h
  3. 22
      libraries/liblmdb/tooltag

4
libraries/liblmdb/Doxyfile
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@ -25,7 +25,7 @@ DOXYFILE_ENCODING = UTF-8
# The PROJECT_NAME tag is a single word (or a sequence of words surrounded
# by quotes) that should identify the project.
PROJECT_NAME = MDB
PROJECT_NAME = LMDB
# The PROJECT_NUMBER tag can be used to enter a project or revision number.
# This could be handy for archiving the generated documentation or
@ -1404,7 +1404,7 @@ SKIP_FUNCTION_MACROS = YES
# If a tag file is not located in the directory in which doxygen
# is run, you must also specify the path to the tagfile here.
TAGFILES =
TAGFILES = tooltag=./man1
# When a file name is specified after GENERATE_TAGFILE, doxygen will create
# a tag file that is based on the input files it reads.

58
libraries/liblmdb/lmdb.h
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@ -1,10 +1,10 @@
/** @file lmdb.h
* @brief Lightning memory-mapped database library
*
* @mainpage Lightning Memory-Mapped Database Manager (MDB)
* @mainpage Lightning Memory-Mapped Database Manager (LMDB)
*
* @section intro_sec Introduction
* MDB is a Btree-based database management library modeled loosely on the
* LMDB is a Btree-based database management library modeled loosely on the
* BerkeleyDB API, but much simplified. The entire database is exposed
* in a memory map, and all data fetches return data directly
* from the mapped memory, so no malloc's or memcpy's occur during
@ -26,10 +26,10 @@
* readers, and readers don't block writers.
*
* Unlike other well-known database mechanisms which use either write-ahead
* transaction logs or append-only data writes, MDB requires no maintenance
* transaction logs or append-only data writes, LMDB requires no maintenance
* during operation. Both write-ahead loggers and append-only databases
* require periodic checkpointing and/or compaction of their log or database
* files otherwise they grow without bound. MDB tracks free pages within
* files otherwise they grow without bound. LMDB tracks free pages within
* the database and re-uses them for new write operations, so the database
* size does not grow without bound in normal use.
*
@ -49,7 +49,7 @@
* stale locks can block further operation.
*
* Fix: Check for stale readers periodically, using the
* #mdb_reader_check function or the mdb_stat tool. Or just
* #mdb_reader_check function or the \ref mdb_stat_1 "mdb_stat" tool. Or just
* make all programs using the database close it; the lockfile
* is always reset on first open of the environment.
*
@ -86,7 +86,7 @@
*
* - Use an MDB_env* in the process which opened it, without fork()ing.
*
* - Do not have open an MDB database twice in the same process at
* - Do not have open an LMDB database twice in the same process at
* the same time. Not even from a plain open() call - close()ing it
* breaks flock() advisory locking.
*
@ -109,7 +109,7 @@
* - If you do that anyway, do a periodic check for stale readers. Or
* close the environment once in a while, so the lockfile can get reset.
*
* - Do not use MDB databases on remote filesystems, even between
* - Do not use LMDB databases on remote filesystems, even between
* processes on the same host. This breaks flock() on some OSes,
* possibly memory map sync, and certainly sync between programs
* on different hosts.
@ -172,7 +172,7 @@ typedef void *mdb_filehandle_t;
typedef int mdb_filehandle_t;
#endif
/** @defgroup mdb MDB API
/** @defgroup mdb LMDB API
* @{
* @brief OpenLDAP Lightning Memory-Mapped Database Manager
*/
@ -386,7 +386,7 @@ typedef enum MDB_cursor_op {
#define MDB_PANIC (-30795)
/** Environment version mismatch */
#define MDB_VERSION_MISMATCH (-30794)
/** File is not a valid MDB file */
/** File is not a valid LMDB file */
#define MDB_INVALID (-30793)
/** Environment mapsize reached */
#define MDB_MAP_FULL (-30792)
@ -436,7 +436,7 @@ typedef struct MDB_envinfo {
unsigned int me_numreaders; /**< max reader slots used in the environment */
} MDB_envinfo;
/** @brief Return the mdb library version information.
/** @brief Return the LMDB library version information.
*
* @param[out] major if non-NULL, the library major version number is copied here
* @param[out] minor if non-NULL, the library minor version number is copied here
@ -450,14 +450,14 @@ char *mdb_version(int *major, int *minor, int *patch);
* This function is a superset of the ANSI C X3.159-1989 (ANSI C) strerror(3)
* function. If the error code is greater than or equal to 0, then the string
* returned by the system function strerror(3) is returned. If the error code
* is less than 0, an error string corresponding to the MDB library error is
* returned. See @ref errors for a list of MDB-specific error codes.
* is less than 0, an error string corresponding to the LMDB library error is
* returned. See @ref errors for a list of LMDB-specific error codes.
* @param[in] err The error code
* @retval "error message" The description of the error
*/
char *mdb_strerror(int err);
/** @brief Create an MDB environment handle.
/** @brief Create an LMDB environment handle.
*
* This function allocates memory for a #MDB_env structure. To release
* the allocated memory and discard the handle, call #mdb_env_close().
@ -490,15 +490,15 @@ int mdb_env_create(MDB_env **env);
* how the operating system has allocated memory to shared libraries and other uses.
* The feature is highly experimental.
* <li>#MDB_NOSUBDIR
* By default, MDB creates its environment in a directory whose
* By default, LMDB creates its environment in a directory whose
* pathname is given in \b path, and creates its data and lock files
* under that directory. With this option, \b path is used as-is for
* the database main data file. The database lock file is the \b path
* with "-lock" appended.
* <li>#MDB_RDONLY
* Open the environment in read-only mode. No write operations will be
* allowed. MDB will still modify the lock file - except on read-only
* filesystems, where MDB does not use locks.
* allowed. LMDB will still modify the lock file - except on read-only
* filesystems, where LMDB does not use locks.
* <li>#MDB_WRITEMAP
* Use a writeable memory map unless MDB_RDONLY is set. This is faster
* and uses fewer mallocs, but loses protection from application bugs
@ -542,7 +542,7 @@ int mdb_env_create(MDB_env **env);
* the user synchronizes its use. Applications that multiplex many
* user threads over individual OS threads need this option. Such an
* application must also serialize the write transactions in an OS
* thread, since MDB's write locking is unaware of the user threads.
* thread, since LMDB's write locking is unaware of the user threads.
* <li>#MDB_NOLOCK
* Don't do any locking. If concurrent access is anticipated, the
* caller must manage all concurrency itself. For proper operation
@ -581,7 +581,7 @@ int mdb_env_create(MDB_env **env);
* @return A non-zero error value on failure and 0 on success. Some possible
* errors are:
* <ul>
* <li>#MDB_VERSION_MISMATCH - the version of the MDB library doesn't match the
* <li>#MDB_VERSION_MISMATCH - the version of the LMDB library doesn't match the
* version that created the database environment.
* <li>#MDB_INVALID - the environment file headers are corrupted.
* <li>ENOENT - the directory specified by the path parameter doesn't exist.
@ -591,7 +591,7 @@ int mdb_env_create(MDB_env **env);
*/
int mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mdb_mode_t mode);
/** @brief Copy an MDB environment to the specified path.
/** @brief Copy an LMDB environment to the specified path.
*
* This function may be used to make a backup of an existing environment.
* No lockfile is created, since it gets recreated at need.
@ -607,7 +607,7 @@ int mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mdb_mode_t
*/
int mdb_env_copy(MDB_env *env, const char *path);
/** @brief Copy an MDB environment to the specified file descriptor.
/** @brief Copy an LMDB environment to the specified file descriptor.
*
* This function may be used to make a backup of an existing environment.
* No lockfile is created, since it gets recreated at need.
@ -622,7 +622,7 @@ int mdb_env_copy(MDB_env *env, const char *path);
*/
int mdb_env_copyfd(MDB_env *env, mdb_filehandle_t fd);
/** @brief Return statistics about the MDB environment.
/** @brief Return statistics about the LMDB environment.
*
* @param[in] env An environment handle returned by #mdb_env_create()
* @param[out] stat The address of an #MDB_stat structure
@ -630,7 +630,7 @@ int mdb_env_copyfd(MDB_env *env, mdb_filehandle_t fd);
*/
int mdb_env_stat(MDB_env *env, MDB_stat *stat);
/** @brief Return information about the MDB environment.
/** @brief Return information about the LMDB environment.
*
* @param[in] env An environment handle returned by #mdb_env_create()
* @param[out] stat The address of an #MDB_envinfo structure
@ -641,7 +641,7 @@ int mdb_env_info(MDB_env *env, MDB_envinfo *stat);
/** @brief Flush the data buffers to disk.
*
* Data is always written to disk when #mdb_txn_commit() is called,
* but the operating system may keep it buffered. MDB always flushes
* but the operating system may keep it buffered. LMDB always flushes
* the OS buffers upon commit as well, unless the environment was
* opened with #MDB_NOSYNC or in part #MDB_NOMETASYNC.
* @param[in] env An environment handle returned by #mdb_env_create()
@ -824,7 +824,7 @@ int mdb_env_set_userctx(MDB_env *env, void *ctx);
*/
void *mdb_env_get_userctx(MDB_env *env);
/** @brief A callback function for most MDB assert() failures,
/** @brief A callback function for most LMDB assert() failures,
* called before printing the message and aborting.
*
* @param[in] env An environment handle returned by #mdb_env_create().
@ -1206,7 +1206,7 @@ int mdb_get(MDB_txn *txn, MDB_dbi dbi, MDB_val *key, MDB_val *data);
* reserved space, which the caller can fill in later - before
* the next update operation or the transaction ends. This saves
* an extra memcpy if the data is being generated later.
* MDB does nothing else with this memory, the caller is expected
* LMDB does nothing else with this memory, the caller is expected
* to modify all of the space requested.
* <li>#MDB_APPEND - append the given key/data pair to the end of the
* database. No key comparisons are performed. This option allows
@ -1478,4 +1478,12 @@ int mdb_reader_check(MDB_env *env, int *dead);
#ifdef __cplusplus
}
#endif
/** @page tools LMDB Command Line Tools
The following describes the command line tools that are available for LMDB.
\li \ref mdb_copy_1
\li \ref mdb_dump_1
\li \ref mdb_load_1
\li \ref mdb_stat_1
*/
#endif /* _LMDB_H_ */

22
libraries/liblmdb/tooltag
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@ -0,0 +1,22 @@
<tagfile>
<compound kind="page">
<name>mdb_copy_1</name>
<title>mdb_copy - environment copy tool</title>
<filename>mdb_copy.1</filename>
</compound>
<compound kind="page">
<name>mdb_dump_1</name>
<title>mdb_dump - environment export tool</title>
<filename>mdb_dump.1</filename>
</compound>
<compound kind="page">
<name>mdb_load_1</name>
<title>mdb_load - environment import tool</title>
<filename>mdb_load.1</filename>
</compound>
<compound kind="page">
<name>mdb_stat_1</name>
<title>mdb_stat - environment status tool</title>
<filename>mdb_stat.1</filename>
</compound>
</tagfile>
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