Update liblmdb, unify 32/64 sources

This commit is contained in:
Howard Chu 2015-12-20 16:27:42 +00:00
parent d0e434f0d8
commit ba4e217c90
58 changed files with 2464 additions and 16992 deletions

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@ -29,6 +29,6 @@
# We aren't even going to check the system for an installed LMDB driver, as it is too # We aren't even going to check the system for an installed LMDB driver, as it is too
# critical a consensus component to rely on dynamically linked libraries # critical a consensus component to rely on dynamically linked libraries
message(STATUS "Using ${ARCH_WIDTH}-bit LMDB from source tree") message(STATUS "Using ${ARCH_WIDTH}-bit LMDB from source tree")
add_subdirectory(liblmdb${ARCH_WIDTH}) add_subdirectory(liblmdb)
set(LMDB_INCLUDE "${CMAKE_CURRENT_SOURCE_DIR}/liblmdb${ARCH_WIDTH}" CACHE STRING "LMDB Include path") set(LMDB_INCLUDE "${CMAKE_CURRENT_SOURCE_DIR}/liblmdb" CACHE STRING "LMDB Include path")
set(LMDB_LIBRARY "lmdb" CACHE STRING "LMDB Library name") set(LMDB_LIBRARY "lmdb" CACHE STRING "LMDB Library name")

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@ -1,5 +1,57 @@
LMDB 0.9 Change Log LMDB 0.9 Change Log
LMDB 0.9.18 Release Engineering
Fix robust mutex detection on glibc 2.10-11 (ITS#8330)
Check for utf8_to_utf16 failures (ITS#7992)
Catch strdup failure in mdb_dbi_open
Build
Additional makefile var tweaks (ITS#8169)
Documentation
Add Getting Started page
LMDB 0.9.17 Release (2015/11/30)
Fix ITS#7377 catch calloc failure
Fix ITS#8237 regression from ITS#7589
Fix ITS#8238 page_split for DUPFIXED pages
Fix ITS#8221 MDB_PAGE_FULL on delete/rebalance
Fix ITS#8258 rebalance/split assert
Fix ITS#8263 cursor_put cursor tracking
Fix ITS#8264 cursor_del cursor tracking
Fix ITS#8310 cursor_del cursor tracking
Fix ITS#8299 mdb_del cursor tracking
Fix ITS#8300 mdb_del cursor tracking
Fix ITS#8304 mdb_del cursor tracking
Fix ITS#7771 fakepage cursor tracking
Fix ITS#7789 ensure mapsize >= pages in use
Fix ITS#7971 mdb_txn_renew0() new reader slots
Fix ITS#7969 use __sync_synchronize on non-x86
Fix ITS#8311 page_split from update_key
Fix ITS#8312 loose pages in nested txn
Fix ITS#8313 mdb_rebalance dummy cursor
Fix ITS#8315 dirty_room in nested txn
Fix ITS#8323 dirty_list in nested txn
Fix ITS#8316 page_merge cursor tracking
Fix ITS#8321 cursor tracking
Fix ITS#8319 mdb_load error messages
Fix ITS#8320 mdb_load plaintext input
Added mdb_txn_id() (ITS#7994)
Added robust mutex support
Miscellaneous cleanup/simplification
Build
Create install dirs if needed (ITS#8256)
Fix ThreadProc decl on Win32/MSVC (ITS#8270)
Added ssize_t typedef for MSVC (ITS#8067)
Use ANSI apis on Windows (ITS#8069)
Use O_SYNC if O_DSYNC,MDB_DSYNC are not defined (ITS#7209)
Allow passing AR to make (ITS#8168)
Allow passing mandir to make install (ITS#8169)
LMDB 0.9.16 Release (2015/08/14)
Fix cursor EOF bug (ITS#8190)
Fix handling of subDB records (ITS#8181)
Fix mdb_midl_shrink() usage (ITS#8200)
LMDB 0.9.15 Release (2015/06/19) LMDB 0.9.15 Release (2015/06/19)
Fix txn init (ITS#7961,#7987) Fix txn init (ITS#7961,#7987)
Fix MDB_PREV_DUP (ITS#7955,#7671) Fix MDB_PREV_DUP (ITS#7955,#7671)

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@ -27,7 +27,7 @@
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
if(FREEBSD) if(FREEBSD)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DMDB_DSYNC=O_SYNC") add_definitions(-DMDB_DSYNC=O_SYNC)
endif() endif()
set (lmdb_sources set (lmdb_sources
@ -41,3 +41,11 @@ add_library(lmdb
target_link_libraries(lmdb target_link_libraries(lmdb
LINK_PRIVATE LINK_PRIVATE
${CMAKE_THREAD_LIBS_INIT}) ${CMAKE_THREAD_LIBS_INIT})
if(WIN32)
target_link_libraries(lmdb
-lntdll)
endif()
if(${ARCH_WIDTH} EQUAL 32)
target_compile_definitions(lmdb
PUBLIC -DMDB_VL32)
endif()

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@ -582,7 +582,7 @@ WARN_LOGFILE =
# directories like "/usr/src/myproject". Separate the files or directories # directories like "/usr/src/myproject". Separate the files or directories
# with spaces. # with spaces.
INPUT = lmdb.h midl.h mdb.c midl.c INPUT = lmdb.h midl.h mdb.c midl.c intro.doc
# This tag can be used to specify the character encoding of the source files # This tag can be used to specify the character encoding of the source files
# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is

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@ -8,24 +8,31 @@
# platforms; you should not need to change any of these. # platforms; you should not need to change any of these.
# Read their descriptions in mdb.c if you do: # Read their descriptions in mdb.c if you do:
# #
# - MDB_USE_POSIX_SEM # - MDB_USE_POSIX_MUTEX, MDB_USE_POSIX_SEM, MDB_USE_SYSV_SEM
# - MDB_DSYNC # - MDB_DSYNC
# - MDB_FDATASYNC # - MDB_FDATASYNC
# - MDB_FDATASYNC_WORKS # - MDB_FDATASYNC_WORKS
# - MDB_USE_PWRITEV # - MDB_USE_PWRITEV
# - MDB_USE_ROBUST
# #
# There may be other macros in mdb.c of interest. You should # There may be other macros in mdb.c of interest. You should
# read mdb.c before changing any of them. # read mdb.c before changing any of them.
# #
CC = gcc CC = gcc
AR = ar
W = -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized W = -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized
THREADS = -pthread THREADS = -pthread
OPT = -O2 -g OPT = -O2 -g
CFLAGS = $(THREADS) $(OPT) $(W) $(XCFLAGS) CFLAGS = $(THREADS) $(OPT) $(W) $(XCFLAGS)
LDLIBS = LDLIBS = # -lntdll # Windows needs ntdll
SOLIBS = SOLIBS = # -lntdll
prefix = /usr/local prefix = /usr/local
XCFLAGS = -DVL32 exec_prefix = $(prefix)
bindir = $(exec_prefix)/bin
libdir = $(exec_prefix)/lib
includedir = $(prefix)/include
datarootdir = $(prefix)/share
mandir = $(datarootdir)/man
######################################################################## ########################################################################
@ -37,10 +44,14 @@ PROGS = $(IPROGS) mtest mtest2 mtest3 mtest4 mtest5
all: $(ILIBS) $(PROGS) all: $(ILIBS) $(PROGS)
install: $(ILIBS) $(IPROGS) $(IHDRS) install: $(ILIBS) $(IPROGS) $(IHDRS)
for f in $(IPROGS); do cp $$f $(DESTDIR)$(prefix)/bin; done mkdir -p $(DESTDIR)$(bindir)
for f in $(ILIBS); do cp $$f $(DESTDIR)$(prefix)/lib; done mkdir -p $(DESTDIR)$(libdir)
for f in $(IHDRS); do cp $$f $(DESTDIR)$(prefix)/include; done mkdir -p $(DESTDIR)$(includedir)
for f in $(IDOCS); do cp $$f $(DESTDIR)$(prefix)/man/man1; done mkdir -p $(DESTDIR)$(mandir)/man1
for f in $(IPROGS); do cp $$f $(DESTDIR)$(bindir); done
for f in $(ILIBS); do cp $$f $(DESTDIR)$(libdir); done
for f in $(IHDRS); do cp $$f $(DESTDIR)$(includedir); done
for f in $(IDOCS); do cp $$f $(DESTDIR)$(mandir)/man1; done
clean: clean:
rm -rf $(PROGS) *.[ao] *.[ls]o *~ testdb rm -rf $(PROGS) *.[ao] *.[ls]o *~ testdb
@ -50,7 +61,7 @@ test: all
./mtest && ./mdb_stat testdb ./mtest && ./mdb_stat testdb
liblmdb.a: mdb.o midl.o liblmdb.a: mdb.o midl.o
ar rs $@ mdb.o midl.o $(AR) rs $@ mdb.o midl.o
liblmdb.so: mdb.lo midl.lo liblmdb.so: mdb.lo midl.lo
# $(CC) $(LDFLAGS) -pthread -shared -Wl,-Bsymbolic -o $@ mdb.o midl.o $(SOLIBS) # $(CC) $(LDFLAGS) -pthread -shared -Wl,-Bsymbolic -o $@ mdb.o midl.o $(SOLIBS)

192
external/db_drivers/liblmdb/intro.doc vendored Normal file
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@ -0,0 +1,192 @@
/*
* Copyright 2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/** @page starting Getting Started
LMDB is compact, fast, powerful, and robust and implements a simplified
variant of the BerkeleyDB (BDB) API. (BDB is also very powerful, and verbosely
documented in its own right.) After reading this page, the main
\ref mdb documentation should make sense. Thanks to Bert Hubert
for creating the
<a href="https://github.com/ahupowerdns/ahutils/blob/master/lmdb-semantics.md">
initial version</a> of this writeup.
Everything starts with an environment, created by #mdb_env_create().
Once created, this environment must also be opened with #mdb_env_open().
#mdb_env_open() gets passed a name which is interpreted as a directory
path. Note that this directory must exist already, it is not created
for you. Within that directory, a lock file and a storage file will be
generated. If you don't want to use a directory, you can pass the
#MDB_NOSUBDIR option, in which case the path you provided is used
directly as the data file, and another file with a "-lock" suffix
added will be used for the lock file.
Once the environment is open, a transaction can be created within it
using #mdb_txn_begin(). Transactions may be read-write or read-only,
and read-write transactions may be nested. A transaction must only
be used by one thread at a time. Transactions are always required,
even for read-only access. The transaction provides a consistent
view of the data.
Once a transaction has been created, a database can be opened within it
using #mdb_dbi_open(). If only one database will ever be used in the
environment, a NULL can be passed as the database name. For named
databases, the #MDB_CREATE flag must be used to create the database
if it doesn't already exist. Also, #mdb_env_set_maxdbs() must be
called after #mdb_env_create() and before #mdb_env_open() to set the
maximum number of named databases you want to support.
Note: a single transaction can open multiple databases. Generally
databases should only be opened once, by the first transaction in
the process. After the first transaction completes, the database
handles can freely be used by all subsequent transactions.
Within a transaction, #mdb_get() and #mdb_put() can store single
key/value pairs if that is all you need to do (but see \ref Cursors
below if you want to do more).
A key/value pair is expressed as two #MDB_val structures. This struct
has two fields, \c mv_size and \c mv_data. The data is a \c void pointer to
an array of \c mv_size bytes.
Because LMDB is very efficient (and usually zero-copy), the data returned
in an #MDB_val structure may be memory-mapped straight from disk. In
other words <b>look but do not touch</b> (or free() for that matter).
Once a transaction is closed, the values can no longer be used, so
make a copy if you need to keep them after that.
@section Cursors Cursors
To do more powerful things, we must use a cursor.
Within the transaction, a cursor can be created with #mdb_cursor_open().
With this cursor we can store/retrieve/delete (multiple) values using
#mdb_cursor_get(), #mdb_cursor_put(), and #mdb_cursor_del().
#mdb_cursor_get() positions itself depending on the cursor operation
requested, and for some operations, on the supplied key. For example,
to list all key/value pairs in a database, use operation #MDB_FIRST for
the first call to #mdb_cursor_get(), and #MDB_NEXT on subsequent calls,
until the end is hit.
To retrieve all keys starting from a specified key value, use #MDB_SET.
For more cursor operations, see the \ref mdb docs.
When using #mdb_cursor_put(), either the function will position the
cursor for you based on the \b key, or you can use operation
#MDB_CURRENT to use the current position of the cursor. Note that
\b key must then match the current position's key.
@subsection summary Summarizing the Opening
So we have a cursor in a transaction which opened a database in an
environment which is opened from a filesystem after it was
separately created.
Or, we create an environment, open it from a filesystem, create a
transaction within it, open a database within that transaction,
and create a cursor within all of the above.
Got it?
@section thrproc Threads and Processes
LMDB uses POSIX locks on files, and these locks have issues if one
process opens a file multiple times. Because of this, do not
#mdb_env_open() a file multiple times from a single process. Instead,
share the LMDB environment that has opened the file across all threads.
Otherwise, if a single process opens the same environment multiple times,
closing it once will remove all the locks held on it, and the other
instances will be vulnerable to corruption from other processes.
Also note that a transaction is tied to one thread by default using
Thread Local Storage. If you want to pass read-only transactions across
threads, you can use the #MDB_NOTLS option on the environment.
@section txns Transactions, Rollbacks, etc.
To actually get anything done, a transaction must be committed using
#mdb_txn_commit(). Alternatively, all of a transaction's operations
can be discarded using #mdb_txn_abort(). In a read-only transaction,
any cursors will \b not automatically be freed. In a read-write
transaction, all cursors will be freed and must not be used again.
For read-only transactions, obviously there is nothing to commit to
storage. The transaction still must eventually be aborted to close
any database handle(s) opened in it, or committed to keep the
database handles around for reuse in new transactions.
In addition, as long as a transaction is open, a consistent view of
the database is kept alive, which requires storage. A read-only
transaction that no longer requires this consistent view should
be terminated (committed or aborted) when the view is no longer
needed (but see below for an optimization).
There can be multiple simultaneously active read-only transactions
but only one that can write. Once a single read-write transaction
is opened, all further attempts to begin one will block until the
first one is committed or aborted. This has no effect on read-only
transactions, however, and they may continue to be opened at any time.
@section dupkeys Duplicate Keys
#mdb_get() and #mdb_put() respectively have no and only some support
for multiple key/value pairs with identical keys. If there are multiple
values for a key, #mdb_get() will only return the first value.
When multiple values for one key are required, pass the #MDB_DUPSORT
flag to #mdb_dbi_open(). In an #MDB_DUPSORT database, by default
#mdb_put() will not replace the value for a key if the key existed
already. Instead it will add the new value to the key. In addition,
#mdb_del() will pay attention to the value field too, allowing for
specific values of a key to be deleted.
Finally, additional cursor operations become available for
traversing through and retrieving duplicate values.
@section optim Some Optimization
If you frequently begin and abort read-only transactions, as an
optimization, it is possible to only reset and renew a transaction.
#mdb_txn_reset() releases any old copies of data kept around for
a read-only transaction. To reuse this reset transaction, call
#mdb_txn_renew() on it. Any cursors in this transaction must also
be renewed using #mdb_cursor_renew().
Note that #mdb_txn_reset() is similar to #mdb_txn_abort() and will
close any databases you opened within the transaction.
To permanently free a transaction, reset or not, use #mdb_txn_abort().
@section cleanup Cleaning Up
For read-only transactions, any cursors created within it must
be closed using #mdb_cursor_close().
It is very rarely necessary to close a database handle, and in
general they should just be left open.
@section onward The Full API
The full \ref mdb documentation lists further details, like how to:
\li size a database (the default limits are intentionally small)
\li drop and clean a database
\li detect and report errors
\li optimize (bulk) loading speed
\li (temporarily) reduce robustness to gain even more speed
\li gather statistics about the database
\li define custom sort orders
*/

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@ -40,6 +40,9 @@
* corrupt the database. Of course if your application code is known to * corrupt the database. Of course if your application code is known to
* be bug-free (...) then this is not an issue. * be bug-free (...) then this is not an issue.
* *
* If this is your first time using a transactional embedded key/value
* store, you may find the \ref starting page to be helpful.
*
* @section caveats_sec Caveats * @section caveats_sec Caveats
* Troubleshooting the lock file, plus semaphores on BSD systems: * Troubleshooting the lock file, plus semaphores on BSD systems:
* *
@ -49,11 +52,16 @@
* stale locks can block further operation. * stale locks can block further operation.
* *
* Fix: Check for stale readers periodically, using the * Fix: Check for stale readers periodically, using the
* #mdb_reader_check function or the \ref mdb_stat_1 "mdb_stat" tool. Or just * #mdb_reader_check function or the \ref mdb_stat_1 "mdb_stat" tool.
* make all programs using the database close it; the lockfile * Stale writers will be cleared automatically on most systems:
* is always reset on first open of the environment. * - Windows - automatic
* - BSD, systems using SysV semaphores - automatic
* - Linux, systems using POSIX mutexes with Robust option - automatic
* Otherwise just make all programs using the database close it;
* the lockfile is always reset on first open of the environment.
* *
* - On BSD systems or others configured with MDB_USE_POSIX_SEM, * - On BSD systems or others configured with MDB_USE_SYSV_SEM or
* MDB_USE_POSIX_SEM,
* startup can fail due to semaphores owned by another userid. * startup can fail due to semaphores owned by another userid.
* *
* Fix: Open and close the database as the user which owns the * Fix: Open and close the database as the user which owns the
@ -106,6 +114,9 @@
* for stale readers is performed or the lockfile is reset, * for stale readers is performed or the lockfile is reset,
* since the process may not remove it from the lockfile. * since the process may not remove it from the lockfile.
* *
* This does not apply to write transactions if the system clears
* stale writers, see above.
*
* - If you do that anyway, do a periodic check for stale readers. Or * - 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. * close the environment once in a while, so the lockfile can get reset.
* *
@ -150,6 +161,7 @@
#define _LMDB_H_ #define _LMDB_H_
#include <sys/types.h> #include <sys/types.h>
#include <inttypes.h>
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
@ -162,6 +174,13 @@ typedef int mdb_mode_t;
typedef mode_t mdb_mode_t; typedef mode_t mdb_mode_t;
#endif #endif
#ifdef MDB_VL32
typedef uint64_t mdb_size_t;
#define mdb_env_create(env) mdb_env_create_vl32(env) /**< Prevent mixing with non-VL32 builds */
#else
typedef size_t mdb_size_t;
#endif
/** An abstraction for a file handle. /** An abstraction for a file handle.
* On POSIX systems file handles are small integers. On Windows * On POSIX systems file handles are small integers. On Windows
* they're opaque pointers. * they're opaque pointers.
@ -184,7 +203,7 @@ typedef int mdb_filehandle_t;
/** Library minor version */ /** Library minor version */
#define MDB_VERSION_MINOR 9 #define MDB_VERSION_MINOR 9
/** Library patch version */ /** Library patch version */
#define MDB_VERSION_PATCH 15 #define MDB_VERSION_PATCH 70
/** Combine args a,b,c into a single integer for easy version comparisons */ /** Combine args a,b,c into a single integer for easy version comparisons */
#define MDB_VERINT(a,b,c) (((a) << 24) | ((b) << 16) | (c)) #define MDB_VERINT(a,b,c) (((a) << 24) | ((b) << 16) | (c))
@ -194,7 +213,7 @@ typedef int mdb_filehandle_t;
MDB_VERINT(MDB_VERSION_MAJOR,MDB_VERSION_MINOR,MDB_VERSION_PATCH) MDB_VERINT(MDB_VERSION_MAJOR,MDB_VERSION_MINOR,MDB_VERSION_PATCH)
/** The release date of this library version */ /** The release date of this library version */
#define MDB_VERSION_DATE "June 19, 2015" #define MDB_VERSION_DATE "December 19, 2015"
/** A stringifier for the version info */ /** A stringifier for the version info */
#define MDB_VERSTR(a,b,c,d) "LMDB " #a "." #b "." #c ": (" d ")" #define MDB_VERSTR(a,b,c,d) "LMDB " #a "." #b "." #c ": (" d ")"
@ -391,7 +410,7 @@ typedef enum MDB_cursor_op {
#define MDB_PAGE_NOTFOUND (-30797) #define MDB_PAGE_NOTFOUND (-30797)
/** Located page was wrong type */ /** Located page was wrong type */
#define MDB_CORRUPTED (-30796) #define MDB_CORRUPTED (-30796)
/** Update of meta page failed, probably I/O error */ /** Update of meta page failed or environment had fatal error */
#define MDB_PANIC (-30795) #define MDB_PANIC (-30795)
/** Environment version mismatch */ /** Environment version mismatch */
#define MDB_VERSION_MISMATCH (-30794) #define MDB_VERSION_MISMATCH (-30794)
@ -413,11 +432,18 @@ typedef enum MDB_cursor_op {
#define MDB_PAGE_FULL (-30786) #define MDB_PAGE_FULL (-30786)
/** Database contents grew beyond environment mapsize */ /** Database contents grew beyond environment mapsize */
#define MDB_MAP_RESIZED (-30785) #define MDB_MAP_RESIZED (-30785)
/** MDB_INCOMPATIBLE: Operation and DB incompatible, or DB flags changed */ /** Operation and DB incompatible, or DB type changed. This can mean:
* <ul>
* <li>The operation expects an #MDB_DUPSORT / #MDB_DUPFIXED database.
* <li>Opening a named DB when the unnamed DB has #MDB_DUPSORT / #MDB_INTEGERKEY.
* <li>Accessing a data record as a database, or vice versa.
* <li>The database was dropped and recreated with different flags.
* </ul>
*/
#define MDB_INCOMPATIBLE (-30784) #define MDB_INCOMPATIBLE (-30784)
/** Invalid reuse of reader locktable slot */ /** Invalid reuse of reader locktable slot */
#define MDB_BAD_RSLOT (-30783) #define MDB_BAD_RSLOT (-30783)
/** Transaction cannot recover - it must be aborted */ /** Transaction must abort, has a child, or is invalid */
#define MDB_BAD_TXN (-30782) #define MDB_BAD_TXN (-30782)
/** Unsupported size of key/DB name/data, or wrong DUPFIXED size */ /** Unsupported size of key/DB name/data, or wrong DUPFIXED size */
#define MDB_BAD_VALSIZE (-30781) #define MDB_BAD_VALSIZE (-30781)
@ -432,18 +458,18 @@ typedef struct MDB_stat {
unsigned int ms_psize; /**< Size of a database page. unsigned int ms_psize; /**< Size of a database page.
This is currently the same for all databases. */ This is currently the same for all databases. */
unsigned int ms_depth; /**< Depth (height) of the B-tree */ unsigned int ms_depth; /**< Depth (height) of the B-tree */
size_t ms_branch_pages; /**< Number of internal (non-leaf) pages */ mdb_size_t ms_branch_pages; /**< Number of internal (non-leaf) pages */
size_t ms_leaf_pages; /**< Number of leaf pages */ mdb_size_t ms_leaf_pages; /**< Number of leaf pages */
size_t ms_overflow_pages; /**< Number of overflow pages */ mdb_size_t ms_overflow_pages; /**< Number of overflow pages */
size_t ms_entries; /**< Number of data items */ mdb_size_t ms_entries; /**< Number of data items */
} MDB_stat; } MDB_stat;
/** @brief Information about the environment */ /** @brief Information about the environment */
typedef struct MDB_envinfo { typedef struct MDB_envinfo {
void *me_mapaddr; /**< Address of map, if fixed */ void *me_mapaddr; /**< Address of map, if fixed */
size_t me_mapsize; /**< Size of the data memory map */ mdb_size_t me_mapsize; /**< Size of the data memory map */
size_t me_last_pgno; /**< ID of the last used page */ mdb_size_t me_last_pgno; /**< ID of the last used page */
size_t me_last_txnid; /**< ID of the last committed transaction */ mdb_size_t me_last_txnid; /**< ID of the last committed transaction */
unsigned int me_maxreaders; /**< max reader slots in the environment */ unsigned int me_maxreaders; /**< max reader slots in the environment */
unsigned int me_numreaders; /**< max reader slots used in the environment */ unsigned int me_numreaders; /**< max reader slots used in the environment */
} MDB_envinfo; } MDB_envinfo;
@ -810,7 +836,7 @@ int mdb_env_get_fd(MDB_env *env, mdb_filehandle_t *fd);
* an active write transaction. * an active write transaction.
* </ul> * </ul>
*/ */
int mdb_env_set_mapsize(MDB_env *env, size_t size); int mdb_env_set_mapsize(MDB_env *env, mdb_size_t size);
/** @brief Set the maximum number of threads/reader slots for the environment. /** @brief Set the maximum number of threads/reader slots for the environment.
* *
@ -923,6 +949,10 @@ int mdb_env_set_assert(MDB_env *env, MDB_assert_func *func);
* <ul> * <ul>
* <li>#MDB_RDONLY * <li>#MDB_RDONLY
* This transaction will not perform any write operations. * This transaction will not perform any write operations.
* <li>#MDB_NOSYNC
* Don't flush system buffers to disk when committing this transaction.
* <li>#MDB_NOMETASYNC
* Flush system buffers but omit metadata flush when committing this transaction.
* </ul> * </ul>
* @param[out] txn Address where the new #MDB_txn handle will be stored * @param[out] txn Address where the new #MDB_txn handle will be stored
* @return A non-zero error value on failure and 0 on success. Some possible * @return A non-zero error value on failure and 0 on success. Some possible
@ -946,6 +976,17 @@ int mdb_txn_begin(MDB_env *env, MDB_txn *parent, unsigned int flags, MDB_txn **
*/ */
MDB_env *mdb_txn_env(MDB_txn *txn); MDB_env *mdb_txn_env(MDB_txn *txn);
/** @brief Return the transaction's ID.
*
* This returns the identifier associated with this transaction. For a
* read-only transaction, this corresponds to the snapshot being read;
* concurrent readers will frequently have the same transaction ID.
*
* @param[in] txn A transaction handle returned by #mdb_txn_begin()
* @return A transaction ID, valid if input is an active transaction.
*/
mdb_size_t mdb_txn_id(MDB_txn *txn);
/** @brief Commit all the operations of a transaction into the database. /** @brief Commit all the operations of a transaction into the database.
* *
* The transaction handle is freed. It and its cursors must not be used * The transaction handle is freed. It and its cursors must not be used
@ -1034,8 +1075,9 @@ int mdb_txn_renew(MDB_txn *txn);
* any other transaction in the process may use this function. * any other transaction in the process may use this function.
* *
* To use named databases (with name != NULL), #mdb_env_set_maxdbs() * To use named databases (with name != NULL), #mdb_env_set_maxdbs()
* must be called before opening the environment. Database names * must be called before opening the environment. Database names are
* are kept as keys in the unnamed database. * keys in the unnamed database, and may be read but not written.
*
* @param[in] txn A transaction handle returned by #mdb_txn_begin() * @param[in] txn A transaction handle returned by #mdb_txn_begin()
* @param[in] name The name of the database to open. If only a single * @param[in] name The name of the database to open. If only a single
* database is needed in the environment, this value may be NULL. * database is needed in the environment, this value may be NULL.
@ -1272,7 +1314,8 @@ int mdb_get(MDB_txn *txn, MDB_dbi dbi, MDB_val *key, MDB_val *data);
* the next update operation or the transaction ends. This saves * the next update operation or the transaction ends. This saves
* an extra memcpy if the data is being generated later. * an extra memcpy if the data is being generated later.
* LMDB 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. * to modify all of the space requested. This flag must not be
* specified if the database was opened with #MDB_DUPSORT.
* <li>#MDB_APPEND - append the given key/data pair to the end of the * <li>#MDB_APPEND - append the given key/data pair to the end of the
* database. This option allows fast bulk loading when keys are * database. This option allows fast bulk loading when keys are
* already known to be in the correct order. Loading unsorted keys * already known to be in the correct order. Loading unsorted keys
@ -1428,13 +1471,15 @@ int mdb_cursor_get(MDB_cursor *cursor, MDB_val *key, MDB_val *data,
* the database supports duplicates (#MDB_DUPSORT). * the database supports duplicates (#MDB_DUPSORT).
* <li>#MDB_RESERVE - reserve space for data of the given size, but * <li>#MDB_RESERVE - reserve space for data of the given size, but
* don't copy the given data. Instead, return a pointer to the * don't copy the given data. Instead, return a pointer to the
* reserved space, which the caller can fill in later. This saves * reserved space, which the caller can fill in later - before
* an extra memcpy if the data is being generated later. * the next update operation or the transaction ends. This saves
* an extra memcpy if the data is being generated later. This flag
* must not be specified if the database was opened with #MDB_DUPSORT.
* <li>#MDB_APPEND - append the given key/data pair to the end of the * <li>#MDB_APPEND - append the given key/data pair to the end of the
* database. No key comparisons are performed. This option allows * database. No key comparisons are performed. This option allows
* fast bulk loading when keys are already known to be in the * fast bulk loading when keys are already known to be in the
* correct order. Loading unsorted keys with this flag will cause * correct order. Loading unsorted keys with this flag will cause
* data corruption. * a #MDB_KEYEXIST error.
* <li>#MDB_APPENDDUP - as above, but for sorted dup data. * <li>#MDB_APPENDDUP - as above, but for sorted dup data.
* <li>#MDB_MULTIPLE - store multiple contiguous data elements in a * <li>#MDB_MULTIPLE - store multiple contiguous data elements in a
* single request. This flag may only be specified if the database * single request. This flag may only be specified if the database

File diff suppressed because it is too large Load diff

View file

@ -5,7 +5,6 @@
mdb_dump \- LMDB environment export tool mdb_dump \- LMDB environment export tool
.SH SYNOPSIS .SH SYNOPSIS
.B mdb_dump .B mdb_dump
.BR \ envpath
[\c [\c
.BR \-V ] .BR \-V ]
[\c [\c
@ -19,6 +18,7 @@ mdb_dump \- LMDB environment export tool
[\c [\c
.BR \-a \ | .BR \-a \ |
.BI \-s \ subdb\fR] .BI \-s \ subdb\fR]
.BR \ envpath
.SH DESCRIPTION .SH DESCRIPTION
The The
.B mdb_dump .B mdb_dump

View file

@ -25,6 +25,15 @@
#else #else
#define Z "z" #define Z "z"
#endif #endif
#ifdef MDB_VL32
#ifdef _WIN32
#define Y "I64"
#else
#define Y "ll"
#endif
#else
#define Y Z
#endif
#define PRINT 1 #define PRINT 1
static int mode; static int mode;
@ -115,7 +124,7 @@ static int dumpit(MDB_txn *txn, MDB_dbi dbi, char *name)
if (name) if (name)
printf("database=%s\n", name); printf("database=%s\n", name);
printf("type=btree\n"); printf("type=btree\n");
printf("mapsize=%" Z "u\n", info.me_mapsize); printf("mapsize=%" Y "u\n", info.me_mapsize);
if (info.me_mapaddr) if (info.me_mapaddr)
printf("mapaddr=%p\n", info.me_mapaddr); printf("mapaddr=%p\n", info.me_mapaddr);
printf("maxreaders=%u\n", info.me_maxreaders); printf("maxreaders=%u\n", info.me_maxreaders);
@ -155,7 +164,7 @@ static int dumpit(MDB_txn *txn, MDB_dbi dbi, char *name)
static void usage(char *prog) static void usage(char *prog)
{ {
fprintf(stderr, "usage: %s dbpath [-V] [-f output] [-l] [-n] [-p] [-a|-s subdb]\n", prog); fprintf(stderr, "usage: %s [-V] [-f output] [-l] [-n] [-p] [-a|-s subdb] dbpath\n", prog);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }

View file

@ -5,7 +5,6 @@
mdb_load \- LMDB environment import tool mdb_load \- LMDB environment import tool
.SH SYNOPSIS .SH SYNOPSIS
.B mdb_load .B mdb_load
.BR \ envpath
[\c [\c
.BR \-V ] .BR \-V ]
[\c [\c
@ -18,6 +17,7 @@ mdb_load \- LMDB environment import tool
.BR \-N ] .BR \-N ]
[\c [\c
.BR \-T ] .BR \-T ]
.BR \ envpath
.SH DESCRIPTION .SH DESCRIPTION
The The
.B mdb_load .B mdb_load

View file

@ -43,6 +43,15 @@ static MDB_val kbuf, dbuf;
#else #else
#define Z "z" #define Z "z"
#endif #endif
#ifdef MDB_VL32
#ifdef _WIN32
#define Y "I64"
#else
#define Y "ll"
#endif
#else
#define Y Z
#endif
#define STRLENOF(s) (sizeof(s)-1) #define STRLENOF(s) (sizeof(s)-1)
@ -112,7 +121,7 @@ static void readhdr(void)
int i; int i;
ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size); ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size);
if (ptr) *ptr = '\0'; if (ptr) *ptr = '\0';
i = sscanf((char *)dbuf.mv_data+STRLENOF("mapsize="), "%" Z "u", &info.me_mapsize); i = sscanf((char *)dbuf.mv_data+STRLENOF("mapsize="), "%" Y "u", &info.me_mapsize);
if (i != 1) { if (i != 1) {
fprintf(stderr, "%s: line %" Z "d: invalid mapsize %s\n", fprintf(stderr, "%s: line %" Z "d: invalid mapsize %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("mapsize=")); prog, lineno, (char *)dbuf.mv_data+STRLENOF("mapsize="));
@ -276,7 +285,7 @@ badend:
static void usage(void) static void usage(void)
{ {
fprintf(stderr, "usage: %s dbpath [-V] [-f input] [-n] [-s name] [-N] [-T]\n", prog); fprintf(stderr, "usage: %s [-V] [-f input] [-n] [-s name] [-N] [-T] dbpath\n", prog);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
@ -327,7 +336,7 @@ int main(int argc, char *argv[])
putflags = MDB_NOOVERWRITE|MDB_NODUPDATA; putflags = MDB_NOOVERWRITE|MDB_NODUPDATA;
break; break;
case 'T': case 'T':
mode |= NOHDR; mode |= NOHDR | PRINT;
break; break;
default: default:
usage(); usage();
@ -400,20 +409,22 @@ int main(int argc, char *argv[])
while(1) { while(1) {
rc = readline(&key, &kbuf); rc = readline(&key, &kbuf);
if (rc == EOF) if (rc) /* rc == EOF */
break; break;
if (rc)
goto txn_abort;
rc = readline(&data, &dbuf); rc = readline(&data, &dbuf);
if (rc) if (rc) {
fprintf(stderr, "%s: line %" Z "d: failed to read key value\n", prog, lineno);
goto txn_abort; goto txn_abort;
}
rc = mdb_cursor_put(mc, &key, &data, putflags); rc = mdb_cursor_put(mc, &key, &data, putflags);
if (rc == MDB_KEYEXIST && putflags) if (rc == MDB_KEYEXIST && putflags)
continue; continue;
if (rc) if (rc) {
fprintf(stderr, "mdb_cursor_put failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort; goto txn_abort;
}
batch++; batch++;
if (batch == 100) { if (batch == 100) {
rc = mdb_txn_commit(txn); rc = mdb_txn_commit(txn);

View file

@ -5,7 +5,6 @@
mdb_stat \- LMDB environment status tool mdb_stat \- LMDB environment status tool
.SH SYNOPSIS .SH SYNOPSIS
.B mdb_stat .B mdb_stat
.BR \ envpath
[\c [\c
.BR \-V ] .BR \-V ]
[\c [\c
@ -19,6 +18,7 @@ mdb_stat \- LMDB environment status tool
[\c [\c
.BR \-a \ | .BR \-a \ |
.BI \-s \ subdb\fR] .BI \-s \ subdb\fR]
.BR \ envpath
.SH DESCRIPTION .SH DESCRIPTION
The The
.B mdb_stat .B mdb_stat

View file

@ -22,6 +22,15 @@
#else #else
#define Z "z" #define Z "z"
#endif #endif
#ifdef MDB_VL32
#ifdef _WIN32
#define Y "I64"
#else
#define Y "ll"
#endif
#else
#define Y Z
#endif
static void prstat(MDB_stat *ms) static void prstat(MDB_stat *ms)
{ {
@ -29,15 +38,15 @@ static void prstat(MDB_stat *ms)
printf(" Page size: %u\n", ms->ms_psize); printf(" Page size: %u\n", ms->ms_psize);
#endif #endif
printf(" Tree depth: %u\n", ms->ms_depth); printf(" Tree depth: %u\n", ms->ms_depth);
printf(" Branch pages: %"Z"u\n", ms->ms_branch_pages); printf(" Branch pages: %"Y"u\n", ms->ms_branch_pages);
printf(" Leaf pages: %"Z"u\n", ms->ms_leaf_pages); printf(" Leaf pages: %"Y"u\n", ms->ms_leaf_pages);
printf(" Overflow pages: %"Z"u\n", ms->ms_overflow_pages); printf(" Overflow pages: %"Y"u\n", ms->ms_overflow_pages);
printf(" Entries: %"Z"u\n", ms->ms_entries); printf(" Entries: %"Y"u\n", ms->ms_entries);
} }
static void usage(char *prog) static void usage(char *prog)
{ {
fprintf(stderr, "usage: %s dbpath [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-a|-s subdb]\n", prog); fprintf(stderr, "usage: %s [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-a|-s subdb] dbpath\n", prog);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
@ -125,11 +134,11 @@ int main(int argc, char *argv[])
(void)mdb_env_info(env, &mei); (void)mdb_env_info(env, &mei);
printf("Environment Info\n"); printf("Environment Info\n");
printf(" Map address: %p\n", mei.me_mapaddr); printf(" Map address: %p\n", mei.me_mapaddr);
printf(" Map size: %"Z"u\n", mei.me_mapsize); printf(" Map size: %"Y"u\n", mei.me_mapsize);
printf(" Page size: %u\n", mst.ms_psize); printf(" Page size: %u\n", mst.ms_psize);
printf(" Max pages: %"Z"u\n", mei.me_mapsize / mst.ms_psize); printf(" Max pages: %"Y"u\n", mei.me_mapsize / mst.ms_psize);
printf(" Number of pages used: %"Z"u\n", mei.me_last_pgno+1); printf(" Number of pages used: %"Y"u\n", mei.me_last_pgno+1);
printf(" Last transaction ID: %"Z"u\n", mei.me_last_txnid); printf(" Last transaction ID: %"Y"u\n", mei.me_last_txnid);
printf(" Max readers: %u\n", mei.me_maxreaders); printf(" Max readers: %u\n", mei.me_maxreaders);
printf(" Number of readers used: %u\n", mei.me_numreaders); printf(" Number of readers used: %u\n", mei.me_numreaders);
} }

View file

@ -116,7 +116,7 @@ void mdb_midl_free(MDB_IDL ids)
free(ids-1); free(ids-1);
} }
int mdb_midl_shrink( MDB_IDL *idp ) void mdb_midl_shrink( MDB_IDL *idp )
{ {
MDB_IDL ids = *idp; MDB_IDL ids = *idp;
if (*(--ids) > MDB_IDL_UM_MAX && if (*(--ids) > MDB_IDL_UM_MAX &&
@ -124,9 +124,7 @@ int mdb_midl_shrink( MDB_IDL *idp )
{ {
*ids++ = MDB_IDL_UM_MAX; *ids++ = MDB_IDL_UM_MAX;
*idp = ids; *idp = ids;
return 1;
} }
return 0;
} }
static int mdb_midl_grow( MDB_IDL *idp, int num ) static int mdb_midl_grow( MDB_IDL *idp, int num )
@ -356,5 +354,67 @@ int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id )
return 0; return 0;
} }
#ifdef MDB_VL32
unsigned mdb_mid3l_search( MDB_ID3L ids, MDB_ID id )
{
/*
* binary search of id in ids
* if found, returns position of id
* if not found, returns first position greater than id
*/
unsigned base = 0;
unsigned cursor = 1;
int val = 0;
unsigned n = (unsigned)ids[0].mid;
while( 0 < n ) {
unsigned pivot = n >> 1;
cursor = base + pivot + 1;
val = CMP( id, ids[cursor].mid );
if( val < 0 ) {
n = pivot;
} else if ( val > 0 ) {
base = cursor;
n -= pivot + 1;
} else {
return cursor;
}
}
if( val > 0 ) {
++cursor;
}
return cursor;
}
int mdb_mid3l_insert( MDB_ID3L ids, MDB_ID3 *id )
{
unsigned x, i;
x = mdb_mid3l_search( ids, id->mid );
if( x < 1 ) {
/* internal error */
return -2;
}
if ( x <= ids[0].mid && ids[x].mid == id->mid ) {
/* duplicate */
return -1;
}
/* insert id */
ids[0].mid++;
for (i=(unsigned)ids[0].mid; i>x; i--)
ids[i] = ids[i-1];
ids[x] = *id;
return 0;
}
#endif /* MDB_VL32 */
/** @} */ /** @} */
/** @} */ /** @} */

View file

@ -27,6 +27,7 @@
#define _MDB_MIDL_H_ #define _MDB_MIDL_H_
#include <stddef.h> #include <stddef.h>
#include <inttypes.h>
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
@ -42,7 +43,11 @@ extern "C" {
/** A generic unsigned ID number. These were entryIDs in back-bdb. /** A generic unsigned ID number. These were entryIDs in back-bdb.
* Preferably it should have the same size as a pointer. * Preferably it should have the same size as a pointer.
*/ */
#ifdef MDB_VL32
typedef uint64_t MDB_ID;
#else
typedef size_t MDB_ID; typedef size_t MDB_ID;
#endif
/** An IDL is an ID List, a sorted array of IDs. The first /** An IDL is an ID List, a sorted array of IDs. The first
* element of the array is a counter for how many actual * element of the array is a counter for how many actual
@ -55,7 +60,7 @@ typedef MDB_ID *MDB_IDL;
/* IDL sizes - likely should be even bigger /* IDL sizes - likely should be even bigger
* limiting factors: sizeof(ID), thread stack size * limiting factors: sizeof(ID), thread stack size
*/ */
#ifdef VL32 #ifdef MDB_VL32
#define MDB_IDL_LOGN 10 /* DB_SIZE is 2^10, UM_SIZE is 2^11 */ #define MDB_IDL_LOGN 10 /* DB_SIZE is 2^10, UM_SIZE is 2^11 */
#else #else
#define MDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */ #define MDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
@ -102,9 +107,8 @@ void mdb_midl_free(MDB_IDL ids);
/** Shrink an IDL. /** Shrink an IDL.
* Return the IDL to the default size if it has grown larger. * Return the IDL to the default size if it has grown larger.
* @param[in,out] idp Address of the IDL to shrink. * @param[in,out] idp Address of the IDL to shrink.
* @return 0 on no change, non-zero if shrunk.
*/ */
int mdb_midl_shrink(MDB_IDL *idp); void mdb_midl_shrink(MDB_IDL *idp);
/** Make room for num additional elements in an IDL. /** Make room for num additional elements in an IDL.
* @param[in,out] idp Address of the IDL. * @param[in,out] idp Address of the IDL.
@ -182,6 +186,20 @@ int mdb_mid2l_insert( MDB_ID2L ids, MDB_ID2 *id );
*/ */
int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id ); int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id );
#ifdef MDB_VL32
typedef struct MDB_ID3 {
MDB_ID mid; /**< The ID */
void *mptr; /**< The pointer */
unsigned int mcnt; /**< Number of pages */
unsigned int mref; /**< Refcounter */
} MDB_ID3;
typedef MDB_ID3 *MDB_ID3L;
unsigned mdb_mid3l_search( MDB_ID3L ids, MDB_ID id );
int mdb_mid3l_insert( MDB_ID3L ids, MDB_ID3 *id );
#endif /* MDB_VL32 */
/** @} */ /** @} */
/** @} */ /** @} */
#ifdef __cplusplus #ifdef __cplusplus

View file

@ -1,20 +0,0 @@
mtest
mtest[23456]
testdb
mdb_copy
mdb_stat
*.[ao]
*.so
*.exe
*[~#]
*.bak
*.orig
*.rej
*.gcov
*.gcda
*.gcno
core
core.*
valgrind.*
man/
html/

View file

@ -1,140 +0,0 @@
LMDB 0.9 Change Log
LMDB 0.9.15 Release (2015/06/19)
Fix txn init (ITS#7961,#7987)
Fix MDB_PREV_DUP (ITS#7955,#7671)
Fix compact of empty env (ITS#7956)
Fix mdb_copy file mode
Fix mdb_env_close() after failed mdb_env_open()
Fix mdb_rebalance collapsing root (ITS#8062)
Fix mdb_load with large values (ITS#8066)
Fix to retry writes on EINTR (ITS#8106)
Fix mdb_cursor_del on empty DB (ITS#8109)
Fix MDB_INTEGERDUP key compare (ITS#8117)
Fix error handling (ITS#7959,#8157,etc.)
Fix race conditions (ITS#7969,7970)
Added workaround for fdatasync bug in ext3fs
Build
Don't use -fPIC for static lib
Update .gitignore (ITS#7952,#7953)
Cleanup for "make test" (ITS#7841), "make clean", mtest*.c
Misc. Android/Windows cleanup
Documentation
Fix MDB_APPEND doc
Fix MDB_MAXKEYSIZE doc (ITS#8156)
Fix mdb_cursor_put,mdb_cursor_del EACCES description
Fix mdb_env_sync(MDB_RDONLY env) doc (ITS#8021)
Clarify MDB_WRITEMAP doc (ITS#8021)
Clarify mdb_env_open doc
Clarify mdb_dbi_open doc
LMDB 0.9.14 Release (2014/09/20)
Fix to support 64K page size (ITS#7713)
Fix to persist decreased as well as increased mapsizes (ITS#7789)
Fix cursor bug when deleting last node of a DUPSORT key
Fix mdb_env_info to return FIXEDMAP address
Fix ambiguous error code from writing to closed DBI (ITS#7825)
Fix mdb_copy copying past end of file (ITS#7886)
Fix cursor bugs from page_merge/rebalance
Fix to dirty fewer pages in deletes (mdb_page_loose())
Fix mdb_dbi_open creating subDBs (ITS#7917)
Fix mdb_cursor_get(_DUP) with single value (ITS#7913)
Fix Windows compat issues in mtests (ITS#7879)
Add compacting variant of mdb_copy
Add BigEndian integer key compare code
Add mdb_dump/mdb_load utilities
LMDB 0.9.13 Release (2014/06/18)
Fix mdb_page_alloc unlimited overflow page search
Documentation
Re-fix MDB_CURRENT doc (ITS#7793)
Fix MDB_GET_MULTIPLE/MDB_NEXT_MULTIPLE doc
LMDB 0.9.12 Release (2014/06/13)
Fix MDB_GET_BOTH regression (ITS#7875,#7681)
Fix MDB_MULTIPLE writing multiple keys (ITS#7834)
Fix mdb_rebalance (ITS#7829)
Fix mdb_page_split (ITS#7815)
Fix md_entries count (ITS#7861,#7828,#7793)
Fix MDB_CURRENT (ITS#7793)
Fix possible crash on Windows DLL detach
Misc code cleanup
Documentation
mdb_cursor_put: cursor moves on error (ITS#7771)
LMDB 0.9.11 Release (2014/01/15)
Add mdb_env_set_assert() (ITS#7775)
Fix: invalidate txn on page allocation errors (ITS#7377)
Fix xcursor tracking in mdb_cursor_del0() (ITS#7771)
Fix corruption from deletes (ITS#7756)
Fix Windows/MSVC build issues
Raise safe limit of max MDB_MAXKEYSIZE
Misc code cleanup
Documentation
Remove spurious note about non-overlapping flags (ITS#7665)
LMDB 0.9.10 Release (2013/11/12)
Add MDB_NOMEMINIT option
Fix mdb_page_split() again (ITS#7589)
Fix MDB_NORDAHEAD definition (ITS#7734)
Fix mdb_cursor_del() positioning (ITS#7733)
Partial fix for larger page sizes (ITS#7713)
Fix Windows64/MSVC build issues
LMDB 0.9.9 Release (2013/10/24)
Add mdb_env_get_fd()
Add MDB_NORDAHEAD option
Add MDB_NOLOCK option
Avoid wasting space in mdb_page_split() (ITS#7589)
Fix mdb_page_merge() cursor fixup (ITS#7722)
Fix mdb_cursor_del() on last delete (ITS#7718)
Fix adding WRITEMAP on existing env (ITS#7715)
Fix nested txns (ITS#7515)
Fix mdb_env_copy() O_DIRECT bug (ITS#7682)
Fix mdb_cursor_set(SET_RANGE) return code (ITS#7681)
Fix mdb_rebalance() cursor fixup (ITS#7701)
Misc code cleanup
Documentation
Note that by default, readers need write access
LMDB 0.9.8 Release (2013/09/09)
Allow mdb_env_set_mapsize() on an open environment
Fix mdb_dbi_flags() (ITS#7672)
Fix mdb_page_unspill() in nested txns
Fix mdb_cursor_get(CURRENT|NEXT) after a delete
Fix mdb_cursor_get(DUP) to always return key (ITS#7671)
Fix mdb_cursor_del() to always advance to next item (ITS#7670)
Fix mdb_cursor_set(SET_RANGE) for tree with single page (ITS#7681)
Fix mdb_env_copy() retry open if O_DIRECT fails (ITS#7682)
Tweak mdb_page_spill() to be less aggressive
Documentation
Update caveats since mdb_reader_check() added in 0.9.7
LMDB 0.9.7 Release (2013/08/17)
Don't leave stale lockfile on failed RDONLY open (ITS#7664)
Fix mdb_page_split() ref beyond cursor depth
Fix read txn data race (ITS#7635)
Fix mdb_rebalance (ITS#7536, #7538)
Fix mdb_drop() (ITS#7561)
Misc DEBUG macro fixes
Add MDB_NOTLS envflag
Add mdb_env_copyfd()
Add mdb_txn_env() (ITS#7660)
Add mdb_dbi_flags() (ITS#7661)
Add mdb_env_get_maxkeysize()
Add mdb_env_reader_list()/mdb_env_reader_check()
Add mdb_page_spill/unspill, remove hard txn size limit
Use shorter names for semaphores (ITS#7615)
Build
Fix install target (ITS#7656)
Documentation
Misc updates for cursors, DB handles, data lifetime
LMDB 0.9.6 Release (2013/02/25)
Many fixes/enhancements
LMDB 0.9.5 Release (2012/11/30)
Renamed from libmdb to liblmdb
Many fixes/enhancements

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@ -1,46 +0,0 @@
# Copyright (c) 2014-2015, The Monero Project
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are
# permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of
# conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
# of conditions and the following disclaimer in the documentation and/or other
# materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors may be
# used to endorse or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
if(FREEBSD)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DMDB_DSYNC=O_SYNC")
endif()
# pass the VL32 flag so that we actually invoke the VL32 extensions
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DVL32")
set (lmdb_sources
mdb.c
midl.c)
include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
add_library(lmdb
${lmdb_sources})
target_link_libraries(lmdb
LINK_PRIVATE
${CMAKE_THREAD_LIBS_INIT})

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@ -1,77 +0,0 @@
.TH MDB_LOAD 1 "2014/06/20" "LMDB 0.9.14"
.\" Copyright 2014-2015 Howard Chu, Symas Corp. All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
mdb_load \- LMDB environment import tool
.SH SYNOPSIS
.B mdb_load
.BR \ envpath
[\c
.BR \-V ]
[\c
.BI \-f \ file\fR]
[\c
.BR \-n ]
[\c
.BI \-s \ subdb\fR]
[\c
.BR \-N ]
[\c
.BR \-T ]
.SH DESCRIPTION
The
.B mdb_load
utility reads from the standard input and loads it into the
LMDB environment
.BR envpath .
The input to
.B mdb_load
must be in the output format specified by the
.BR mdb_dump (1)
utility or as specified by the
.B -T
option below.
.SH OPTIONS
.TP
.BR \-V
Write the library version number to the standard output, and exit.
.TP
.BR \-f \ file
Read from the specified file instead of from the standard input.
.TP
.BR \-n
Load an LMDB database which does not use subdirectories.
.TP
.BR \-s \ subdb
Load a specific subdatabase. If no database is specified, data is loaded into the main database.
.TP
.BR \-N
Don't overwrite existing records when loading into an already existing database; just skip them.
.TP
.BR \-T
Load data from simple text files. The input must be paired lines of text, where the first
line of the pair is the key item, and the second line of the pair is its corresponding
data item.
A simple escape mechanism, where newline and backslash (\\) characters are special, is
applied to the text input. Newline characters are interpreted as record separators.
Backslash characters in the text will be interpreted in one of two ways: If the backslash
character precedes another backslash character, the pair will be interpreted as a literal
backslash. If the backslash character precedes any other character, the two characters
following the backslash will be interpreted as a hexadecimal specification of a single
character; for example, \\0a is a newline character in the ASCII character set.
For this reason, any backslash or newline characters that naturally occur in the text
input must be escaped to avoid misinterpretation by
.BR mdb_load .
.SH DIAGNOSTICS
Exit status is zero if no errors occur.
Errors result in a non-zero exit status and
a diagnostic message being written to standard error.
.SH "SEE ALSO"
.BR mdb_dump (1)
.SH AUTHOR
Howard Chu of Symas Corporation <http://www.symas.com>

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@ -1,64 +0,0 @@
.TH MDB_STAT 1 "2014/06/20" "LMDB 0.9.14"
.\" Copyright 2012-2015 Howard Chu, Symas Corp. All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
mdb_stat \- LMDB environment status tool
.SH SYNOPSIS
.B mdb_stat
.BR \ envpath
[\c
.BR \-V ]
[\c
.BR \-e ]
[\c
.BR \-f [ f [ f ]]]
[\c
.BR \-n ]
[\c
.BR \-r [ r ]]
[\c
.BR \-a \ |
.BI \-s \ subdb\fR]
.SH DESCRIPTION
The
.B mdb_stat
utility displays the status of an LMDB environment.
.SH OPTIONS
.TP
.BR \-V
Write the library version number to the standard output, and exit.
.TP
.BR \-e
Display information about the database environment.
.TP
.BR \-f
Display information about the environment freelist.
If \fB\-ff\fP is given, summarize each freelist entry.
If \fB\-fff\fP is given, display the full list of page IDs in the freelist.
.TP
.BR \-n
Display the status of an LMDB database which does not use subdirectories.
.TP
.BR \-r
Display information about the environment reader table.
Shows the process ID, thread ID, and transaction ID for each active
reader slot. The process ID and transaction ID are in decimal, the
thread ID is in hexadecimal. The transaction ID is displayed as "-"
if the reader does not currently have a read transaction open.
If \fB\-rr\fP is given, check for stale entries in the reader
table and clear them. The reader table will be printed again
after the check is performed.
.TP
.BR \-a
Display the status of all of the subdatabases in the environment.
.TP
.BR \-s \ subdb
Display the status of a specific subdatabase.
.SH DIAGNOSTICS
Exit status is zero if no errors occur.
Errors result in a non-zero exit status and
a diagnostic message being written to standard error.
.SH "SEE ALSO"
.BR mdb_copy (1)
.SH AUTHOR
Howard Chu of Symas Corporation <http://www.symas.com>

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@ -1,263 +0,0 @@
/* mdb_stat.c - memory-mapped database status tool */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "lmdb.h"
#ifdef _WIN32
#define Z "I"
#else
#define Z "z"
#endif
static void prstat(MDB_stat *ms)
{
#if 0
printf(" Page size: %u\n", ms->ms_psize);
#endif
printf(" Tree depth: %u\n", ms->ms_depth);
printf(" Branch pages: %"Z"u\n", ms->ms_branch_pages);
printf(" Leaf pages: %"Z"u\n", ms->ms_leaf_pages);
printf(" Overflow pages: %"Z"u\n", ms->ms_overflow_pages);
printf(" Entries: %"Z"u\n", ms->ms_entries);
}
static void usage(char *prog)
{
fprintf(stderr, "usage: %s dbpath [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-a|-s subdb]\n", prog);
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
int i, rc;
MDB_env *env;
MDB_txn *txn;
MDB_dbi dbi;
MDB_stat mst;
MDB_envinfo mei;
char *prog = argv[0];
char *envname;
char *subname = NULL;
int alldbs = 0, envinfo = 0, envflags = 0, freinfo = 0, rdrinfo = 0;
if (argc < 2) {
usage(prog);
}
/* -a: print stat of main DB and all subDBs
* -s: print stat of only the named subDB
* -e: print env info
* -f: print freelist info
* -r: print reader info
* -n: use NOSUBDIR flag on env_open
* -V: print version and exit
* (default) print stat of only the main DB
*/
while ((i = getopt(argc, argv, "Vaefnrs:")) != EOF) {
switch(i) {
case 'V':
printf("%s\n", MDB_VERSION_STRING);
exit(0);
break;
case 'a':
if (subname)
usage(prog);
alldbs++;
break;
case 'e':
envinfo++;
break;
case 'f':
freinfo++;
break;
case 'n':
envflags |= MDB_NOSUBDIR;
break;
case 'r':
rdrinfo++;
break;
case 's':
if (alldbs)
usage(prog);
subname = optarg;
break;
default:
usage(prog);
}
}
if (optind != argc - 1)
usage(prog);
envname = argv[optind];
rc = mdb_env_create(&env);
if (rc) {
fprintf(stderr, "mdb_env_create failed, error %d %s\n", rc, mdb_strerror(rc));
return EXIT_FAILURE;
}
if (alldbs || subname) {
mdb_env_set_maxdbs(env, 4);
}
rc = mdb_env_open(env, envname, envflags | MDB_RDONLY, 0664);
if (rc) {
fprintf(stderr, "mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
if (envinfo) {
(void)mdb_env_stat(env, &mst);
(void)mdb_env_info(env, &mei);
printf("Environment Info\n");
printf(" Map address: %p\n", mei.me_mapaddr);
printf(" Map size: %"Z"u\n", mei.me_mapsize);
printf(" Page size: %u\n", mst.ms_psize);
printf(" Max pages: %"Z"u\n", mei.me_mapsize / mst.ms_psize);
printf(" Number of pages used: %"Z"u\n", mei.me_last_pgno+1);
printf(" Last transaction ID: %"Z"u\n", mei.me_last_txnid);
printf(" Max readers: %u\n", mei.me_maxreaders);
printf(" Number of readers used: %u\n", mei.me_numreaders);
}
if (rdrinfo) {
printf("Reader Table Status\n");
rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
if (rdrinfo > 1) {
int dead;
mdb_reader_check(env, &dead);
printf(" %d stale readers cleared.\n", dead);
rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
}
if (!(subname || alldbs || freinfo))
goto env_close;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (rc) {
fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
if (freinfo) {
MDB_cursor *cursor;
MDB_val key, data;
size_t pages = 0, *iptr;
printf("Freelist Status\n");
dbi = 0;
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
rc = mdb_stat(txn, dbi, &mst);
if (rc) {
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prstat(&mst);
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
iptr = data.mv_data;
pages += *iptr;
if (freinfo > 1) {
char *bad = "";
size_t pg, prev;
ssize_t i, j, span = 0;
j = *iptr++;
for (i = j, prev = 1; --i >= 0; ) {
pg = iptr[i];
if (pg <= prev)
bad = " [bad sequence]";
prev = pg;
pg += span;
for (; i >= span && iptr[i-span] == pg; span++, pg++) ;
}
printf(" Transaction %"Z"u, %"Z"d pages, maxspan %"Z"d%s\n",
*(size_t *)key.mv_data, j, span, bad);
if (freinfo > 2) {
for (--j; j >= 0; ) {
pg = iptr[j];
for (span=1; --j >= 0 && iptr[j] == pg+span; span++) ;
printf(span>1 ? " %9"Z"u[%"Z"d]\n" : " %9"Z"u\n",
pg, span);
}
}
}
}
mdb_cursor_close(cursor);
printf(" Free pages: %"Z"u\n", pages);
}
rc = mdb_open(txn, subname, 0, &dbi);
if (rc) {
fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
rc = mdb_stat(txn, dbi, &mst);
if (rc) {
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
printf("Status of %s\n", subname ? subname : "Main DB");
prstat(&mst);
if (alldbs) {
MDB_cursor *cursor;
MDB_val key;
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT_NODUP)) == 0) {
char *str;
MDB_dbi db2;
if (memchr(key.mv_data, '\0', key.mv_size))
continue;
str = malloc(key.mv_size+1);
memcpy(str, key.mv_data, key.mv_size);
str[key.mv_size] = '\0';
rc = mdb_open(txn, str, 0, &db2);
if (rc == MDB_SUCCESS)
printf("Status of %s\n", str);
free(str);
if (rc) continue;
rc = mdb_stat(txn, db2, &mst);
if (rc) {
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prstat(&mst);
mdb_close(env, db2);
}
mdb_cursor_close(cursor);
}
if (rc == MDB_NOTFOUND)
rc = MDB_SUCCESS;
mdb_close(env, dbi);
txn_abort:
mdb_txn_abort(txn);
env_close:
mdb_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}

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@ -1,360 +0,0 @@
/** @file midl.c
* @brief ldap bdb back-end ID List functions */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2000-2015 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include "midl.h"
/** @defgroup internal LMDB Internals
* @{
*/
/** @defgroup idls ID List Management
* @{
*/
#define CMP(x,y) ( (x) < (y) ? -1 : (x) > (y) )
unsigned mdb_midl_search( MDB_IDL ids, MDB_ID id )
{
/*
* binary search of id in ids
* if found, returns position of id
* if not found, returns first position greater than id
*/
unsigned base = 0;
unsigned cursor = 1;
int val = 0;
unsigned n = ids[0];
while( 0 < n ) {
unsigned pivot = n >> 1;
cursor = base + pivot + 1;
val = CMP( ids[cursor], id );
if( val < 0 ) {
n = pivot;
} else if ( val > 0 ) {
base = cursor;
n -= pivot + 1;
} else {
return cursor;
}
}
if( val > 0 ) {
++cursor;
}
return cursor;
}
#if 0 /* superseded by append/sort */
int mdb_midl_insert( MDB_IDL ids, MDB_ID id )
{
unsigned x, i;
x = mdb_midl_search( ids, id );
assert( x > 0 );
if( x < 1 ) {
/* internal error */
return -2;
}
if ( x <= ids[0] && ids[x] == id ) {
/* duplicate */
assert(0);
return -1;
}
if ( ++ids[0] >= MDB_IDL_DB_MAX ) {
/* no room */
--ids[0];
return -2;
} else {
/* insert id */
for (i=ids[0]; i>x; i--)
ids[i] = ids[i-1];
ids[x] = id;
}
return 0;
}
#endif
MDB_IDL mdb_midl_alloc(int num)
{
MDB_IDL ids = malloc((num+2) * sizeof(MDB_ID));
if (ids) {
*ids++ = num;
*ids = 0;
}
return ids;
}
void mdb_midl_free(MDB_IDL ids)
{
if (ids)
free(ids-1);
}
int mdb_midl_shrink( MDB_IDL *idp )
{
MDB_IDL ids = *idp;
if (*(--ids) > MDB_IDL_UM_MAX &&
(ids = realloc(ids, (MDB_IDL_UM_MAX+1) * sizeof(MDB_ID))))
{
*ids++ = MDB_IDL_UM_MAX;
*idp = ids;
return 1;
}
return 0;
}
static int mdb_midl_grow( MDB_IDL *idp, int num )
{
MDB_IDL idn = *idp-1;
/* grow it */
idn = realloc(idn, (*idn + num + 2) * sizeof(MDB_ID));
if (!idn)
return ENOMEM;
*idn++ += num;
*idp = idn;
return 0;
}
int mdb_midl_need( MDB_IDL *idp, unsigned num )
{
MDB_IDL ids = *idp;
num += ids[0];
if (num > ids[-1]) {
num = (num + num/4 + (256 + 2)) & -256;
if (!(ids = realloc(ids-1, num * sizeof(MDB_ID))))
return ENOMEM;
*ids++ = num - 2;
*idp = ids;
}
return 0;
}
int mdb_midl_append( MDB_IDL *idp, MDB_ID id )
{
MDB_IDL ids = *idp;
/* Too big? */
if (ids[0] >= ids[-1]) {
if (mdb_midl_grow(idp, MDB_IDL_UM_MAX))
return ENOMEM;
ids = *idp;
}
ids[0]++;
ids[ids[0]] = id;
return 0;
}
int mdb_midl_append_list( MDB_IDL *idp, MDB_IDL app )
{
MDB_IDL ids = *idp;
/* Too big? */
if (ids[0] + app[0] >= ids[-1]) {
if (mdb_midl_grow(idp, app[0]))
return ENOMEM;
ids = *idp;
}
memcpy(&ids[ids[0]+1], &app[1], app[0] * sizeof(MDB_ID));
ids[0] += app[0];
return 0;
}
int mdb_midl_append_range( MDB_IDL *idp, MDB_ID id, unsigned n )
{
MDB_ID *ids = *idp, len = ids[0];
/* Too big? */
if (len + n > ids[-1]) {
if (mdb_midl_grow(idp, n | MDB_IDL_UM_MAX))
return ENOMEM;
ids = *idp;
}
ids[0] = len + n;
ids += len;
while (n)
ids[n--] = id++;
return 0;
}
void mdb_midl_xmerge( MDB_IDL idl, MDB_IDL merge )
{
MDB_ID old_id, merge_id, i = merge[0], j = idl[0], k = i+j, total = k;
idl[0] = (MDB_ID)-1; /* delimiter for idl scan below */
old_id = idl[j];
while (i) {
merge_id = merge[i--];
for (; old_id < merge_id; old_id = idl[--j])
idl[k--] = old_id;
idl[k--] = merge_id;
}
idl[0] = total;
}
/* Quicksort + Insertion sort for small arrays */
#define SMALL 8
#define MIDL_SWAP(a,b) { itmp=(a); (a)=(b); (b)=itmp; }
void
mdb_midl_sort( MDB_IDL ids )
{
/* Max possible depth of int-indexed tree * 2 items/level */
int istack[sizeof(int)*CHAR_BIT * 2];
int i,j,k,l,ir,jstack;
MDB_ID a, itmp;
ir = (int)ids[0];
l = 1;
jstack = 0;
for(;;) {
if (ir - l < SMALL) { /* Insertion sort */
for (j=l+1;j<=ir;j++) {
a = ids[j];
for (i=j-1;i>=1;i--) {
if (ids[i] >= a) break;
ids[i+1] = ids[i];
}
ids[i+1] = a;
}
if (jstack == 0) break;
ir = istack[jstack--];
l = istack[jstack--];
} else {
k = (l + ir) >> 1; /* Choose median of left, center, right */
MIDL_SWAP(ids[k], ids[l+1]);
if (ids[l] < ids[ir]) {
MIDL_SWAP(ids[l], ids[ir]);
}
if (ids[l+1] < ids[ir]) {
MIDL_SWAP(ids[l+1], ids[ir]);
}
if (ids[l] < ids[l+1]) {
MIDL_SWAP(ids[l], ids[l+1]);
}
i = l+1;
j = ir;
a = ids[l+1];
for(;;) {
do i++; while(ids[i] > a);
do j--; while(ids[j] < a);
if (j < i) break;
MIDL_SWAP(ids[i],ids[j]);
}
ids[l+1] = ids[j];
ids[j] = a;
jstack += 2;
if (ir-i+1 >= j-l) {
istack[jstack] = ir;
istack[jstack-1] = i;
ir = j-1;
} else {
istack[jstack] = j-1;
istack[jstack-1] = l;
l = i;
}
}
}
}
unsigned mdb_mid2l_search( MDB_ID2L ids, MDB_ID id )
{
/*
* binary search of id in ids
* if found, returns position of id
* if not found, returns first position greater than id
*/
unsigned base = 0;
unsigned cursor = 1;
int val = 0;
unsigned n = (unsigned)ids[0].mid;
while( 0 < n ) {
unsigned pivot = n >> 1;
cursor = base + pivot + 1;
val = CMP( id, ids[cursor].mid );
if( val < 0 ) {
n = pivot;
} else if ( val > 0 ) {
base = cursor;
n -= pivot + 1;
} else {
return cursor;
}
}
if( val > 0 ) {
++cursor;
}
return cursor;
}
int mdb_mid2l_insert( MDB_ID2L ids, MDB_ID2 *id )
{
unsigned x, i;
x = mdb_mid2l_search( ids, id->mid );
if( x < 1 ) {
/* internal error */
return -2;
}
if ( x <= ids[0].mid && ids[x].mid == id->mid ) {
/* duplicate */
return -1;
}
if ( ids[0].mid >= MDB_IDL_UM_MAX ) {
/* too big */
return -2;
} else {
/* insert id */
ids[0].mid++;
for (i=(unsigned)ids[0].mid; i>x; i--)
ids[i] = ids[i-1];
ids[x] = *id;
}
return 0;
}
int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id )
{
/* Too big? */
if (ids[0].mid >= MDB_IDL_UM_MAX) {
return -2;
}
ids[0].mid++;
ids[ids[0].mid] = *id;
return 0;
}
/** @} */
/** @} */

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@ -1,177 +0,0 @@
/* mtest.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor, *cur2;
MDB_cursor_op op;
int count;
int *values;
char sval[32] = "";
srand(time(NULL));
count = (rand()%384) + 64;
values = (int *)malloc(count*sizeof(int));
for(i = 0;i<count;i++) {
values[i] = rand()%1024;
}
E(mdb_env_create(&env));
E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_open(env, "./testdb", 0 /* MDB_FIXEDMAP |MDB_NOSYNC*/, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, NULL, 0, &dbi));
key.mv_size = sizeof(int);
key.mv_data = sval;
printf("Adding %d values\n", count);
for (i=0;i<count;i++) {
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
/* Set <data> in each iteration, since MDB_NOOVERWRITE may modify it */
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE))) {
j++;
data.mv_size = sizeof(sval);
data.mv_data = sval;
}
}
if (j) printf("%d duplicates skipped\n", j);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
j=0;
key.mv_data = sval;
for (i= count - 1; i > -1; i-= (rand()%5)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(sval, "%03x ", values[i]);
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, NULL))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor last\n");
E(mdb_cursor_get(cursor, &key, &data, MDB_LAST));
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor last/prev\n");
E(mdb_cursor_get(cursor, &key, &data, MDB_LAST));
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
E(mdb_cursor_get(cursor, &key, &data, MDB_PREV));
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
printf("Deleting with cursor\n");
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_cursor_open(txn, dbi, &cur2));
for (i=0; i<50; i++) {
if (RES(MDB_NOTFOUND, mdb_cursor_get(cur2, &key, &data, MDB_NEXT)))
break;
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
E(mdb_del(txn, dbi, &key, NULL));
}
printf("Restarting cursor in txn\n");
for (op=MDB_FIRST, i=0; i<=32; op=MDB_NEXT, i++) {
if (RES(MDB_NOTFOUND, mdb_cursor_get(cur2, &key, &data, op)))
break;
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
mdb_cursor_close(cur2);
E(mdb_txn_commit(txn));
printf("Restarting cursor outside txn\n");
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
for (op=MDB_FIRST, i=0; i<=32; op=MDB_NEXT, i++) {
if (RES(MDB_NOTFOUND, mdb_cursor_get(cursor, &key, &data, op)))
break;
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

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@ -1,20 +0,0 @@
Copyright 2011-2015 Howard Chu, Symas Corp.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted only as authorized by the OpenLDAP
Public License.
A copy of this license is available in the file LICENSE in the
top-level directory of the distribution or, alternatively, at
<http://www.OpenLDAP.org/license.html>.
OpenLDAP is a registered trademark of the OpenLDAP Foundation.
Individual files and/or contributed packages may be copyright by
other parties and/or subject to additional restrictions.
This work also contains materials derived from public sources.
Additional information about OpenLDAP can be obtained at
<http://www.openldap.org/>.

View file

@ -1,47 +0,0 @@
The OpenLDAP Public License
Version 2.8, 17 August 2003
Redistribution and use of this software and associated documentation
("Software"), with or without modification, are permitted provided
that the following conditions are met:
1. Redistributions in source form must retain copyright statements
and notices,
2. Redistributions in binary form must reproduce applicable copyright
statements and notices, this list of conditions, and the following
disclaimer in the documentation and/or other materials provided
with the distribution, and
3. Redistributions must contain a verbatim copy of this document.
The OpenLDAP Foundation may revise this license from time to time.
Each revision is distinguished by a version number. You may use
this Software under terms of this license revision or under the
terms of any subsequent revision of the license.
THIS SOFTWARE IS PROVIDED BY THE OPENLDAP FOUNDATION AND ITS
CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE OPENLDAP FOUNDATION, ITS CONTRIBUTORS, OR THE AUTHOR(S)
OR OWNER(S) OF THE SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
The names of the authors and copyright holders must not be used in
advertising or otherwise to promote the sale, use or other dealing
in this Software without specific, written prior permission. Title
to copyright in this Software shall at all times remain with copyright
holders.
OpenLDAP is a registered trademark of the OpenLDAP Foundation.
Copyright 1999-2003 The OpenLDAP Foundation, Redwood City,
California, USA. All Rights Reserved. Permission to copy and
distribute verbatim copies of this document is granted.

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@ -1,104 +0,0 @@
# Makefile for liblmdb (Lightning memory-mapped database library).
########################################################################
# Configuration. The compiler options must enable threaded compilation.
#
# Preprocessor macros (for CPPFLAGS) of interest...
# Note that the defaults should already be correct for most
# platforms; you should not need to change any of these.
# Read their descriptions in mdb.c if you do:
#
# - MDB_USE_POSIX_SEM
# - MDB_DSYNC
# - MDB_FDATASYNC
# - MDB_FDATASYNC_WORKS
# - MDB_USE_PWRITEV
#
# There may be other macros in mdb.c of interest. You should
# read mdb.c before changing any of them.
#
CC = gcc
W = -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized
THREADS = -pthread
OPT = -O2 -g
CFLAGS = $(THREADS) $(OPT) $(W) $(XCFLAGS)
LDLIBS =
SOLIBS =
prefix = /usr/local
########################################################################
IHDRS = lmdb.h
ILIBS = liblmdb.a liblmdb.so
IPROGS = mdb_stat mdb_copy mdb_dump mdb_load
IDOCS = mdb_stat.1 mdb_copy.1 mdb_dump.1 mdb_load.1
PROGS = $(IPROGS) mtest mtest2 mtest3 mtest4 mtest5
all: $(ILIBS) $(PROGS)
install: $(ILIBS) $(IPROGS) $(IHDRS)
for f in $(IPROGS); do cp $$f $(DESTDIR)$(prefix)/bin; done
for f in $(ILIBS); do cp $$f $(DESTDIR)$(prefix)/lib; done
for f in $(IHDRS); do cp $$f $(DESTDIR)$(prefix)/include; done
for f in $(IDOCS); do cp $$f $(DESTDIR)$(prefix)/man/man1; done
clean:
rm -rf $(PROGS) *.[ao] *.[ls]o *~ testdb
test: all
rm -rf testdb && mkdir testdb
./mtest && ./mdb_stat testdb
liblmdb.a: mdb.o midl.o
ar rs $@ mdb.o midl.o
liblmdb.so: mdb.lo midl.lo
# $(CC) $(LDFLAGS) -pthread -shared -Wl,-Bsymbolic -o $@ mdb.o midl.o $(SOLIBS)
$(CC) $(LDFLAGS) -pthread -shared -o $@ mdb.lo midl.lo $(SOLIBS)
mdb_stat: mdb_stat.o liblmdb.a
mdb_copy: mdb_copy.o liblmdb.a
mdb_dump: mdb_dump.o liblmdb.a
mdb_load: mdb_load.o liblmdb.a
mtest: mtest.o liblmdb.a
mtest2: mtest2.o liblmdb.a
mtest3: mtest3.o liblmdb.a
mtest4: mtest4.o liblmdb.a
mtest5: mtest5.o liblmdb.a
mtest6: mtest6.o liblmdb.a
mdb.o: mdb.c lmdb.h midl.h
$(CC) $(CFLAGS) $(CPPFLAGS) -c mdb.c
midl.o: midl.c midl.h
$(CC) $(CFLAGS) $(CPPFLAGS) -c midl.c
mdb.lo: mdb.c lmdb.h midl.h
$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -c mdb.c -o $@
midl.lo: midl.c midl.h
$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -c midl.c -o $@
%: %.o
$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
%.o: %.c lmdb.h
$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
COV_FLAGS=-fprofile-arcs -ftest-coverage
COV_OBJS=xmdb.o xmidl.o
coverage: xmtest
for i in mtest*.c [0-9]*.c; do j=`basename \$$i .c`; $(MAKE) $$j.o; \
gcc -o x$$j $$j.o $(COV_OBJS) -pthread $(COV_FLAGS); \
rm -rf testdb; mkdir testdb; ./x$$j; done
gcov xmdb.c
gcov xmidl.c
xmtest: mtest.o xmdb.o xmidl.o
gcc -o xmtest mtest.o xmdb.o xmidl.o -pthread $(COV_FLAGS)
xmdb.o: mdb.c lmdb.h midl.h
$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -O0 $(COV_FLAGS) -c mdb.c -o $@
xmidl.o: midl.c midl.h
$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -O0 $(COV_FLAGS) -c midl.c -o $@

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@ -1,54 +0,0 @@
.TH MDB_COPY 1 "2014/06/20" "LMDB 0.9.14"
.\" Copyright 2012-2015 Howard Chu, Symas Corp. All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
mdb_copy \- LMDB environment copy tool
.SH SYNOPSIS
.B mdb_copy
[\c
.BR \-V ]
[\c
.BR \-c ]
[\c
.BR \-n ]
.B srcpath
[\c
.BR dstpath ]
.SH DESCRIPTION
The
.B mdb_copy
utility copies an LMDB environment. The environment can
be copied regardless of whether it is currently in use.
No lockfile is created, since it gets recreated at need.
If
.I dstpath
is specified it must be the path of an empty directory
for storing the backup. Otherwise, the backup will be
written to stdout.
.SH OPTIONS
.TP
.BR \-V
Write the library version number to the standard output, and exit.
.TP
.BR \-c
Compact while copying. Only current data pages will be copied; freed
or unused pages will be omitted from the copy. This option will
slow down the backup process as it is more CPU-intensive.
.TP
.BR \-n
Open LDMB environment(s) which do not use subdirectories.
.SH DIAGNOSTICS
Exit status is zero if no errors occur.
Errors result in a non-zero exit status and
a diagnostic message being written to standard error.
.SH CAVEATS
This utility can trigger significant file size growth if run
in parallel with write transactions, because pages which they
free during copying cannot be reused until the copy is done.
.SH "SEE ALSO"
.BR mdb_stat (1)
.SH AUTHOR
Howard Chu of Symas Corporation <http://www.symas.com>

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@ -1,82 +0,0 @@
/* mdb_copy.c - memory-mapped database backup tool */
/*
* Copyright 2012-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#ifdef _WIN32
#include <windows.h>
#define MDB_STDOUT GetStdHandle(STD_OUTPUT_HANDLE)
#else
#define MDB_STDOUT 1
#endif
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "lmdb.h"
static void
sighandle(int sig)
{
}
int main(int argc,char * argv[])
{
int rc;
MDB_env *env;
const char *progname = argv[0], *act;
unsigned flags = MDB_RDONLY;
unsigned cpflags = 0;
for (; argc > 1 && argv[1][0] == '-'; argc--, argv++) {
if (argv[1][1] == 'n' && argv[1][2] == '\0')
flags |= MDB_NOSUBDIR;
else if (argv[1][1] == 'c' && argv[1][2] == '\0')
cpflags |= MDB_CP_COMPACT;
else if (argv[1][1] == 'V' && argv[1][2] == '\0') {
printf("%s\n", MDB_VERSION_STRING);
exit(0);
} else
argc = 0;
}
if (argc<2 || argc>3) {
fprintf(stderr, "usage: %s [-V] [-c] [-n] srcpath [dstpath]\n", progname);
exit(EXIT_FAILURE);
}
#ifdef SIGPIPE
signal(SIGPIPE, sighandle);
#endif
#ifdef SIGHUP
signal(SIGHUP, sighandle);
#endif
signal(SIGINT, sighandle);
signal(SIGTERM, sighandle);
act = "opening environment";
rc = mdb_env_create(&env);
if (rc == MDB_SUCCESS) {
rc = mdb_env_open(env, argv[1], flags, 0600);
}
if (rc == MDB_SUCCESS) {
act = "copying";
if (argc == 2)
rc = mdb_env_copyfd2(env, MDB_STDOUT, cpflags);
else
rc = mdb_env_copy2(env, argv[2], cpflags);
}
if (rc)
fprintf(stderr, "%s: %s failed, error %d (%s)\n",
progname, act, rc, mdb_strerror(rc));
mdb_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}

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@ -1,75 +0,0 @@
.TH MDB_DUMP 1 "2014/06/20" "LMDB 0.9.14"
.\" Copyright 2014-2015 Howard Chu, Symas Corp. All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
mdb_dump \- LMDB environment export tool
.SH SYNOPSIS
.B mdb_dump
.BR \ envpath
[\c
.BR \-V ]
[\c
.BI \-f \ file\fR]
[\c
.BR \-l ]
[\c
.BR \-n ]
[\c
.BR \-p ]
[\c
.BR \-a \ |
.BI \-s \ subdb\fR]
.SH DESCRIPTION
The
.B mdb_dump
utility reads a database and writes its contents to the
standard output using a portable flat-text format
understood by the
.BR mdb_load (1)
utility.
.SH OPTIONS
.TP
.BR \-V
Write the library version number to the standard output, and exit.
.TP
.BR \-f \ file
Write to the specified file instead of to the standard output.
.TP
.BR \-l
List the databases stored in the environment. Just the
names will be listed, no data will be output.
.TP
.BR \-n
Dump an LMDB database which does not use subdirectories.
.TP
.BR \-p
If characters in either the key or data items are printing characters (as
defined by isprint(3)), output them directly. This option permits users to
use standard text editors and tools to modify the contents of databases.
Note: different systems may have different notions about what characters
are considered printing characters, and databases dumped in this manner may
be less portable to external systems.
.TP
.BR \-a
Dump all of the subdatabases in the environment.
.TP
.BR \-s \ subdb
Dump a specific subdatabase. If no database is specified, only the main database is dumped.
.SH DIAGNOSTICS
Exit status is zero if no errors occur.
Errors result in a non-zero exit status and
a diagnostic message being written to standard error.
Dumping and reloading databases that use user-defined comparison functions
will result in new databases that use the default comparison functions.
\fBIn this case it is quite likely that the reloaded database will be
damaged beyond repair permitting neither record storage nor retrieval.\fP
The only available workaround is to modify the source for the
.BR mdb_load (1)
utility to load the database using the correct comparison functions.
.SH "SEE ALSO"
.BR mdb_load (1)
.SH AUTHOR
Howard Chu of Symas Corporation <http://www.symas.com>

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@ -1,317 +0,0 @@
/* mdb_dump.c - memory-mapped database dump tool */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <signal.h>
#include "lmdb.h"
#ifdef _WIN32
#define Z "I"
#else
#define Z "z"
#endif
#define PRINT 1
static int mode;
typedef struct flagbit {
int bit;
char *name;
} flagbit;
flagbit dbflags[] = {
{ MDB_REVERSEKEY, "reversekey" },
{ MDB_DUPSORT, "dupsort" },
{ MDB_INTEGERKEY, "integerkey" },
{ MDB_DUPFIXED, "dupfixed" },
{ MDB_INTEGERDUP, "integerdup" },
{ MDB_REVERSEDUP, "reversedup" },
{ 0, NULL }
};
static volatile sig_atomic_t gotsig;
static void dumpsig( int sig )
{
gotsig=1;
}
static const char hexc[] = "0123456789abcdef";
static void hex(unsigned char c)
{
putchar(hexc[c >> 4]);
putchar(hexc[c & 0xf]);
}
static void text(MDB_val *v)
{
unsigned char *c, *end;
putchar(' ');
c = v->mv_data;
end = c + v->mv_size;
while (c < end) {
if (isprint(*c)) {
putchar(*c);
} else {
putchar('\\');
hex(*c);
}
c++;
}
putchar('\n');
}
static void byte(MDB_val *v)
{
unsigned char *c, *end;
putchar(' ');
c = v->mv_data;
end = c + v->mv_size;
while (c < end) {
hex(*c++);
}
putchar('\n');
}
/* Dump in BDB-compatible format */
static int dumpit(MDB_txn *txn, MDB_dbi dbi, char *name)
{
MDB_cursor *mc;
MDB_stat ms;
MDB_val key, data;
MDB_envinfo info;
unsigned int flags;
int rc, i;
rc = mdb_dbi_flags(txn, dbi, &flags);
if (rc) return rc;
rc = mdb_stat(txn, dbi, &ms);
if (rc) return rc;
rc = mdb_env_info(mdb_txn_env(txn), &info);
if (rc) return rc;
printf("VERSION=3\n");
printf("format=%s\n", mode & PRINT ? "print" : "bytevalue");
if (name)
printf("database=%s\n", name);
printf("type=btree\n");
printf("mapsize=%" Z "u\n", info.me_mapsize);
if (info.me_mapaddr)
printf("mapaddr=%p\n", info.me_mapaddr);
printf("maxreaders=%u\n", info.me_maxreaders);
if (flags & MDB_DUPSORT)
printf("duplicates=1\n");
for (i=0; dbflags[i].bit; i++)
if (flags & dbflags[i].bit)
printf("%s=1\n", dbflags[i].name);
printf("db_pagesize=%d\n", ms.ms_psize);
printf("HEADER=END\n");
rc = mdb_cursor_open(txn, dbi, &mc);
if (rc) return rc;
while ((rc = mdb_cursor_get(mc, &key, &data, MDB_NEXT) == MDB_SUCCESS)) {
if (gotsig) {
rc = EINTR;
break;
}
if (mode & PRINT) {
text(&key);
text(&data);
} else {
byte(&key);
byte(&data);
}
}
printf("DATA=END\n");
if (rc == MDB_NOTFOUND)
rc = MDB_SUCCESS;
return rc;
}
static void usage(char *prog)
{
fprintf(stderr, "usage: %s dbpath [-V] [-f output] [-l] [-n] [-p] [-a|-s subdb]\n", prog);
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
int i, rc;
MDB_env *env;
MDB_txn *txn;
MDB_dbi dbi;
char *prog = argv[0];
char *envname;
char *subname = NULL;
int alldbs = 0, envflags = 0, list = 0;
if (argc < 2) {
usage(prog);
}
/* -a: dump main DB and all subDBs
* -s: dump only the named subDB
* -n: use NOSUBDIR flag on env_open
* -p: use printable characters
* -f: write to file instead of stdout
* -V: print version and exit
* (default) dump only the main DB
*/
while ((i = getopt(argc, argv, "af:lnps:V")) != EOF) {
switch(i) {
case 'V':
printf("%s\n", MDB_VERSION_STRING);
exit(0);
break;
case 'l':
list = 1;
/*FALLTHROUGH*/;
case 'a':
if (subname)
usage(prog);
alldbs++;
break;
case 'f':
if (freopen(optarg, "w", stdout) == NULL) {
fprintf(stderr, "%s: %s: reopen: %s\n",
prog, optarg, strerror(errno));
exit(EXIT_FAILURE);
}
break;
case 'n':
envflags |= MDB_NOSUBDIR;
break;
case 'p':
mode |= PRINT;
break;
case 's':
if (alldbs)
usage(prog);
subname = optarg;
break;
default:
usage(prog);
}
}
if (optind != argc - 1)
usage(prog);
#ifdef SIGPIPE
signal(SIGPIPE, dumpsig);
#endif
#ifdef SIGHUP
signal(SIGHUP, dumpsig);
#endif
signal(SIGINT, dumpsig);
signal(SIGTERM, dumpsig);
envname = argv[optind];
rc = mdb_env_create(&env);
if (rc) {
fprintf(stderr, "mdb_env_create failed, error %d %s\n", rc, mdb_strerror(rc));
return EXIT_FAILURE;
}
if (alldbs || subname) {
mdb_env_set_maxdbs(env, 2);
}
rc = mdb_env_open(env, envname, envflags | MDB_RDONLY, 0664);
if (rc) {
fprintf(stderr, "mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (rc) {
fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_open(txn, subname, 0, &dbi);
if (rc) {
fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
if (alldbs) {
MDB_cursor *cursor;
MDB_val key;
int count = 0;
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT_NODUP)) == 0) {
char *str;
MDB_dbi db2;
if (memchr(key.mv_data, '\0', key.mv_size))
continue;
count++;
str = malloc(key.mv_size+1);
memcpy(str, key.mv_data, key.mv_size);
str[key.mv_size] = '\0';
rc = mdb_open(txn, str, 0, &db2);
if (rc == MDB_SUCCESS) {
if (list) {
printf("%s\n", str);
list++;
} else {
rc = dumpit(txn, db2, str);
if (rc)
break;
}
mdb_close(env, db2);
}
free(str);
if (rc) continue;
}
mdb_cursor_close(cursor);
if (!count) {
fprintf(stderr, "%s: %s does not contain multiple databases\n", prog, envname);
rc = MDB_NOTFOUND;
} else if (rc == MDB_NOTFOUND) {
rc = MDB_SUCCESS;
}
} else {
rc = dumpit(txn, dbi, subname);
}
if (rc && rc != MDB_NOTFOUND)
fprintf(stderr, "%s: %s: %s\n", prog, envname, mdb_strerror(rc));
mdb_close(env, dbi);
txn_abort:
mdb_txn_abort(txn);
env_close:
mdb_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}

View file

@ -1,454 +0,0 @@
/* mdb_load.c - memory-mapped database load tool */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include "lmdb.h"
#define PRINT 1
#define NOHDR 2
static int mode;
static char *subname = NULL;
static size_t lineno;
static int version;
static int flags;
static char *prog;
static int Eof;
static MDB_envinfo info;
static MDB_val kbuf, dbuf;
#ifdef _WIN32
#define Z "I"
#else
#define Z "z"
#endif
#define STRLENOF(s) (sizeof(s)-1)
typedef struct flagbit {
int bit;
char *name;
int len;
} flagbit;
#define S(s) s, STRLENOF(s)
flagbit dbflags[] = {
{ MDB_REVERSEKEY, S("reversekey") },
{ MDB_DUPSORT, S("dupsort") },
{ MDB_INTEGERKEY, S("integerkey") },
{ MDB_DUPFIXED, S("dupfixed") },
{ MDB_INTEGERDUP, S("integerdup") },
{ MDB_REVERSEDUP, S("reversedup") },
{ 0, NULL, 0 }
};
static void readhdr(void)
{
char *ptr;
while (fgets(dbuf.mv_data, dbuf.mv_size, stdin) != NULL) {
lineno++;
if (!strncmp(dbuf.mv_data, "VERSION=", STRLENOF("VERSION="))) {
version=atoi((char *)dbuf.mv_data+STRLENOF("VERSION="));
if (version > 3) {
fprintf(stderr, "%s: line %" Z "d: unsupported VERSION %d\n",
prog, lineno, version);
exit(EXIT_FAILURE);
}
} else if (!strncmp(dbuf.mv_data, "HEADER=END", STRLENOF("HEADER=END"))) {
break;
} else if (!strncmp(dbuf.mv_data, "format=", STRLENOF("format="))) {
if (!strncmp((char *)dbuf.mv_data+STRLENOF("FORMAT="), "print", STRLENOF("print")))
mode |= PRINT;
else if (strncmp((char *)dbuf.mv_data+STRLENOF("FORMAT="), "bytevalue", STRLENOF("bytevalue"))) {
fprintf(stderr, "%s: line %" Z "d: unsupported FORMAT %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("FORMAT="));
exit(EXIT_FAILURE);
}
} else if (!strncmp(dbuf.mv_data, "database=", STRLENOF("database="))) {
ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size);
if (ptr) *ptr = '\0';
if (subname) free(subname);
subname = strdup((char *)dbuf.mv_data+STRLENOF("database="));
} else if (!strncmp(dbuf.mv_data, "type=", STRLENOF("type="))) {
if (strncmp((char *)dbuf.mv_data+STRLENOF("type="), "btree", STRLENOF("btree"))) {
fprintf(stderr, "%s: line %" Z "d: unsupported type %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("type="));
exit(EXIT_FAILURE);
}
} else if (!strncmp(dbuf.mv_data, "mapaddr=", STRLENOF("mapaddr="))) {
int i;
ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size);
if (ptr) *ptr = '\0';
i = sscanf((char *)dbuf.mv_data+STRLENOF("mapaddr="), "%p", &info.me_mapaddr);
if (i != 1) {
fprintf(stderr, "%s: line %" Z "d: invalid mapaddr %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("mapaddr="));
exit(EXIT_FAILURE);
}
} else if (!strncmp(dbuf.mv_data, "mapsize=", STRLENOF("mapsize="))) {
int i;
ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size);
if (ptr) *ptr = '\0';
i = sscanf((char *)dbuf.mv_data+STRLENOF("mapsize="), "%" Z "u", &info.me_mapsize);
if (i != 1) {
fprintf(stderr, "%s: line %" Z "d: invalid mapsize %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("mapsize="));
exit(EXIT_FAILURE);
}
} else if (!strncmp(dbuf.mv_data, "maxreaders=", STRLENOF("maxreaders="))) {
int i;
ptr = memchr(dbuf.mv_data, '\n', dbuf.mv_size);
if (ptr) *ptr = '\0';
i = sscanf((char *)dbuf.mv_data+STRLENOF("maxreaders="), "%u", &info.me_maxreaders);
if (i != 1) {
fprintf(stderr, "%s: line %" Z "d: invalid maxreaders %s\n",
prog, lineno, (char *)dbuf.mv_data+STRLENOF("maxreaders="));
exit(EXIT_FAILURE);
}
} else {
int i;
for (i=0; dbflags[i].bit; i++) {
if (!strncmp(dbuf.mv_data, dbflags[i].name, dbflags[i].len) &&
((char *)dbuf.mv_data)[dbflags[i].len] == '=') {
flags |= dbflags[i].bit;
break;
}
}
if (!dbflags[i].bit) {
ptr = memchr(dbuf.mv_data, '=', dbuf.mv_size);
if (!ptr) {
fprintf(stderr, "%s: line %" Z "d: unexpected format\n",
prog, lineno);
exit(EXIT_FAILURE);
} else {
*ptr = '\0';
fprintf(stderr, "%s: line %" Z "d: unrecognized keyword ignored: %s\n",
prog, lineno, (char *)dbuf.mv_data);
}
}
}
}
}
static void badend(void)
{
fprintf(stderr, "%s: line %" Z "d: unexpected end of input\n",
prog, lineno);
}
static int unhex(unsigned char *c2)
{
int x, c;
x = *c2++ & 0x4f;
if (x & 0x40)
x -= 55;
c = x << 4;
x = *c2 & 0x4f;
if (x & 0x40)
x -= 55;
c |= x;
return c;
}
static int readline(MDB_val *out, MDB_val *buf)
{
unsigned char *c1, *c2, *end;
size_t len, l2;
int c;
if (!(mode & NOHDR)) {
c = fgetc(stdin);
if (c == EOF) {
Eof = 1;
return EOF;
}
if (c != ' ') {
lineno++;
if (fgets(buf->mv_data, buf->mv_size, stdin) == NULL) {
badend:
Eof = 1;
badend();
return EOF;
}
if (c == 'D' && !strncmp(buf->mv_data, "ATA=END", STRLENOF("ATA=END")))
return EOF;
goto badend;
}
}
if (fgets(buf->mv_data, buf->mv_size, stdin) == NULL) {
Eof = 1;
return EOF;
}
lineno++;
c1 = buf->mv_data;
len = strlen((char *)c1);
l2 = len;
/* Is buffer too short? */
while (c1[len-1] != '\n') {
buf->mv_data = realloc(buf->mv_data, buf->mv_size*2);
if (!buf->mv_data) {
Eof = 1;
fprintf(stderr, "%s: line %" Z "d: out of memory, line too long\n",
prog, lineno);
return EOF;
}
c1 = buf->mv_data;
c1 += l2;
if (fgets((char *)c1, buf->mv_size+1, stdin) == NULL) {
Eof = 1;
badend();
return EOF;
}
buf->mv_size *= 2;
len = strlen((char *)c1);
l2 += len;
}
c1 = c2 = buf->mv_data;
len = l2;
c1[--len] = '\0';
end = c1 + len;
if (mode & PRINT) {
while (c2 < end) {
if (*c2 == '\\') {
if (c2[1] == '\\') {
c1++; c2 += 2;
} else {
if (c2+3 > end || !isxdigit(c2[1]) || !isxdigit(c2[2])) {
Eof = 1;
badend();
return EOF;
}
*c1++ = unhex(++c2);
c2 += 2;
}
} else {
c1++; c2++;
}
}
} else {
/* odd length not allowed */
if (len & 1) {
Eof = 1;
badend();
return EOF;
}
while (c2 < end) {
if (!isxdigit(*c2) || !isxdigit(c2[1])) {
Eof = 1;
badend();
return EOF;
}
*c1++ = unhex(c2);
c2 += 2;
}
}
c2 = out->mv_data = buf->mv_data;
out->mv_size = c1 - c2;
return 0;
}
static void usage(void)
{
fprintf(stderr, "usage: %s dbpath [-V] [-f input] [-n] [-s name] [-N] [-T]\n", prog);
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
int i, rc;
MDB_env *env;
MDB_txn *txn;
MDB_cursor *mc;
MDB_dbi dbi;
char *envname;
int envflags = 0, putflags = 0;
int dohdr = 0;
prog = argv[0];
if (argc < 2) {
usage();
}
/* -f: load file instead of stdin
* -n: use NOSUBDIR flag on env_open
* -s: load into named subDB
* -N: use NOOVERWRITE on puts
* -T: read plaintext
* -V: print version and exit
*/
while ((i = getopt(argc, argv, "f:ns:NTV")) != EOF) {
switch(i) {
case 'V':
printf("%s\n", MDB_VERSION_STRING);
exit(0);
break;
case 'f':
if (freopen(optarg, "r", stdin) == NULL) {
fprintf(stderr, "%s: %s: reopen: %s\n",
prog, optarg, strerror(errno));
exit(EXIT_FAILURE);
}
break;
case 'n':
envflags |= MDB_NOSUBDIR;
break;
case 's':
subname = strdup(optarg);
break;
case 'N':
putflags = MDB_NOOVERWRITE|MDB_NODUPDATA;
break;
case 'T':
mode |= NOHDR;
break;
default:
usage();
}
}
if (optind != argc - 1)
usage();
dbuf.mv_size = 4096;
dbuf.mv_data = malloc(dbuf.mv_size);
if (!(mode & NOHDR))
readhdr();
envname = argv[optind];
rc = mdb_env_create(&env);
if (rc) {
fprintf(stderr, "mdb_env_create failed, error %d %s\n", rc, mdb_strerror(rc));
return EXIT_FAILURE;
}
mdb_env_set_maxdbs(env, 2);
if (info.me_maxreaders)
mdb_env_set_maxreaders(env, info.me_maxreaders);
if (info.me_mapsize)
mdb_env_set_mapsize(env, info.me_mapsize);
if (info.me_mapaddr)
envflags |= MDB_FIXEDMAP;
rc = mdb_env_open(env, envname, envflags, 0664);
if (rc) {
fprintf(stderr, "mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
kbuf.mv_size = mdb_env_get_maxkeysize(env) * 2 + 2;
kbuf.mv_data = malloc(kbuf.mv_size);
while(!Eof) {
MDB_val key, data;
int batch = 0;
flags = 0;
if (!dohdr) {
dohdr = 1;
} else if (!(mode & NOHDR))
readhdr();
rc = mdb_txn_begin(env, NULL, 0, &txn);
if (rc) {
fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_open(txn, subname, flags|MDB_CREATE, &dbi);
if (rc) {
fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
rc = mdb_cursor_open(txn, dbi, &mc);
if (rc) {
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
while(1) {
rc = readline(&key, &kbuf);
if (rc == EOF)
break;
if (rc)
goto txn_abort;
rc = readline(&data, &dbuf);
if (rc)
goto txn_abort;
rc = mdb_cursor_put(mc, &key, &data, putflags);
if (rc == MDB_KEYEXIST && putflags)
continue;
if (rc)
goto txn_abort;
batch++;
if (batch == 100) {
rc = mdb_txn_commit(txn);
if (rc) {
fprintf(stderr, "%s: line %" Z "d: txn_commit: %s\n",
prog, lineno, mdb_strerror(rc));
goto env_close;
}
rc = mdb_txn_begin(env, NULL, 0, &txn);
if (rc) {
fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_cursor_open(txn, dbi, &mc);
if (rc) {
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
batch = 0;
}
}
rc = mdb_txn_commit(txn);
txn = NULL;
if (rc) {
fprintf(stderr, "%s: line %" Z "d: txn_commit: %s\n",
prog, lineno, mdb_strerror(rc));
goto env_close;
}
mdb_dbi_close(env, dbi);
}
txn_abort:
mdb_txn_abort(txn);
env_close:
mdb_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}

View file

@ -1,186 +0,0 @@
/** @file midl.h
* @brief LMDB ID List header file.
*
* This file was originally part of back-bdb but has been
* modified for use in libmdb. Most of the macros defined
* in this file are unused, just left over from the original.
*
* This file is only used internally in libmdb and its definitions
* are not exposed publicly.
*/
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2000-2015 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#ifndef _MDB_MIDL_H_
#define _MDB_MIDL_H_
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @defgroup internal LMDB Internals
* @{
*/
/** @defgroup idls ID List Management
* @{
*/
/** A generic unsigned ID number. These were entryIDs in back-bdb.
* Preferably it should have the same size as a pointer.
*/
typedef size_t MDB_ID;
/** An IDL is an ID List, a sorted array of IDs. The first
* element of the array is a counter for how many actual
* IDs are in the list. In the original back-bdb code, IDLs are
* sorted in ascending order. For libmdb IDLs are sorted in
* descending order.
*/
typedef MDB_ID *MDB_IDL;
/* IDL sizes - likely should be even bigger
* limiting factors: sizeof(ID), thread stack size
*/
#define MDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
#define MDB_IDL_DB_SIZE (1<<MDB_IDL_LOGN)
#define MDB_IDL_UM_SIZE (1<<(MDB_IDL_LOGN+1))
#define MDB_IDL_DB_MAX (MDB_IDL_DB_SIZE-1)
#define MDB_IDL_UM_MAX (MDB_IDL_UM_SIZE-1)
#define MDB_IDL_SIZEOF(ids) (((ids)[0]+1) * sizeof(MDB_ID))
#define MDB_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
#define MDB_IDL_CPY( dst, src ) (memcpy( dst, src, MDB_IDL_SIZEOF( src ) ))
#define MDB_IDL_FIRST( ids ) ( (ids)[1] )
#define MDB_IDL_LAST( ids ) ( (ids)[(ids)[0]] )
/** Current max length of an #mdb_midl_alloc()ed IDL */
#define MDB_IDL_ALLOCLEN( ids ) ( (ids)[-1] )
/** Append ID to IDL. The IDL must be big enough. */
#define mdb_midl_xappend(idl, id) do { \
MDB_ID *xidl = (idl), xlen = ++(xidl[0]); \
xidl[xlen] = (id); \
} while (0)
/** Search for an ID in an IDL.
* @param[in] ids The IDL to search.
* @param[in] id The ID to search for.
* @return The index of the first ID greater than or equal to \b id.
*/
unsigned mdb_midl_search( MDB_IDL ids, MDB_ID id );
/** Allocate an IDL.
* Allocates memory for an IDL of the given size.
* @return IDL on success, NULL on failure.
*/
MDB_IDL mdb_midl_alloc(int num);
/** Free an IDL.
* @param[in] ids The IDL to free.
*/
void mdb_midl_free(MDB_IDL ids);
/** Shrink an IDL.
* Return the IDL to the default size if it has grown larger.
* @param[in,out] idp Address of the IDL to shrink.
* @return 0 on no change, non-zero if shrunk.
*/
int mdb_midl_shrink(MDB_IDL *idp);
/** Make room for num additional elements in an IDL.
* @param[in,out] idp Address of the IDL.
* @param[in] num Number of elements to make room for.
* @return 0 on success, ENOMEM on failure.
*/
int mdb_midl_need(MDB_IDL *idp, unsigned num);
/** Append an ID onto an IDL.
* @param[in,out] idp Address of the IDL to append to.
* @param[in] id The ID to append.
* @return 0 on success, ENOMEM if the IDL is too large.
*/
int mdb_midl_append( MDB_IDL *idp, MDB_ID id );
/** Append an IDL onto an IDL.
* @param[in,out] idp Address of the IDL to append to.
* @param[in] app The IDL to append.
* @return 0 on success, ENOMEM if the IDL is too large.
*/
int mdb_midl_append_list( MDB_IDL *idp, MDB_IDL app );
/** Append an ID range onto an IDL.
* @param[in,out] idp Address of the IDL to append to.
* @param[in] id The lowest ID to append.
* @param[in] n Number of IDs to append.
* @return 0 on success, ENOMEM if the IDL is too large.
*/
int mdb_midl_append_range( MDB_IDL *idp, MDB_ID id, unsigned n );
/** Merge an IDL onto an IDL. The destination IDL must be big enough.
* @param[in] idl The IDL to merge into.
* @param[in] merge The IDL to merge.
*/
void mdb_midl_xmerge( MDB_IDL idl, MDB_IDL merge );
/** Sort an IDL.
* @param[in,out] ids The IDL to sort.
*/
void mdb_midl_sort( MDB_IDL ids );
/** An ID2 is an ID/pointer pair.
*/
typedef struct MDB_ID2 {
MDB_ID mid; /**< The ID */
void *mptr; /**< The pointer */
} MDB_ID2;
/** An ID2L is an ID2 List, a sorted array of ID2s.
* The first element's \b mid member is a count of how many actual
* elements are in the array. The \b mptr member of the first element is unused.
* The array is sorted in ascending order by \b mid.
*/
typedef MDB_ID2 *MDB_ID2L;
/** Search for an ID in an ID2L.
* @param[in] ids The ID2L to search.
* @param[in] id The ID to search for.
* @return The index of the first ID2 whose \b mid member is greater than or equal to \b id.
*/
unsigned mdb_mid2l_search( MDB_ID2L ids, MDB_ID id );
/** Insert an ID2 into a ID2L.
* @param[in,out] ids The ID2L to insert into.
* @param[in] id The ID2 to insert.
* @return 0 on success, -1 if the ID was already present in the ID2L.
*/
int mdb_mid2l_insert( MDB_ID2L ids, MDB_ID2 *id );
/** Append an ID2 into a ID2L.
* @param[in,out] ids The ID2L to append into.
* @param[in] id The ID2 to append.
* @return 0 on success, -2 if the ID2L is too big.
*/
int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id );
/** @} */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _MDB_MIDL_H_ */

View file

@ -1,124 +0,0 @@
/* mtest2.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Just like mtest.c, but using a subDB instead of the main DB */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor;
int count;
int *values;
char sval[32] = "";
srand(time(NULL));
count = (rand()%384) + 64;
values = (int *)malloc(count*sizeof(int));
for(i = 0;i<count;i++) {
values[i] = rand()%1024;
}
E(mdb_env_create(&env));
E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, "id1", MDB_CREATE, &dbi));
key.mv_size = sizeof(int);
key.mv_data = sval;
printf("Adding %d values\n", count);
for (i=0;i<count;i++) {
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE)))
j++;
}
if (j) printf("%d duplicates skipped\n", j);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
j=0;
key.mv_data = sval;
for (i= count - 1; i > -1; i-= (rand()%5)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(sval, "%03x ", values[i]);
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, NULL))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

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/* mtest3.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Tests for sorted duplicate DBs */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor;
int count;
int *values;
char sval[32];
char kval[sizeof(int)];
srand(time(NULL));
memset(sval, 0, sizeof(sval));
count = (rand()%384) + 64;
values = (int *)malloc(count*sizeof(int));
for(i = 0;i<count;i++) {
values[i] = rand()%1024;
}
E(mdb_env_create(&env));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi));
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
printf("Adding %d values\n", count);
for (i=0;i<count;i++) {
if (!(i & 0x0f))
sprintf(kval, "%03x", values[i]);
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NODUPDATA)))
j++;
}
if (j) printf("%d duplicates skipped\n", j);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
j=0;
for (i= count - 1; i > -1; i-= (rand()%5)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(kval, "%03x", values[i & ~0x0f]);
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, &data))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

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@ -1,168 +0,0 @@
/* mtest4.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Tests for sorted duplicate DBs with fixed-size keys */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor;
int count;
int *values;
char sval[8];
char kval[sizeof(int)];
memset(sval, 0, sizeof(sval));
count = 510;
values = (int *)malloc(count*sizeof(int));
for(i = 0;i<count;i++) {
values[i] = i*5;
}
E(mdb_env_create(&env));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, "id4", MDB_CREATE|MDB_DUPSORT|MDB_DUPFIXED, &dbi));
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
printf("Adding %d values\n", count);
strcpy(kval, "001");
for (i=0;i<count;i++) {
sprintf(sval, "%07x", values[i]);
if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NODUPDATA)))
j++;
}
if (j) printf("%d duplicates skipped\n", j);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
/* there should be one full page of dups now.
*/
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
/* test all 3 branches of split code:
* 1: new key in lower half
* 2: new key at split point
* 3: new key in upper half
*/
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
sprintf(sval, "%07x", values[3]+1);
E(mdb_txn_begin(env, NULL, 0, &txn));
(void)RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NODUPDATA));
mdb_txn_abort(txn);
sprintf(sval, "%07x", values[255]+1);
E(mdb_txn_begin(env, NULL, 0, &txn));
(void)RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NODUPDATA));
mdb_txn_abort(txn);
sprintf(sval, "%07x", values[500]+1);
E(mdb_txn_begin(env, NULL, 0, &txn));
(void)RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NODUPDATA));
E(mdb_txn_commit(txn));
/* Try MDB_NEXT_MULTIPLE */
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT_MULTIPLE)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
j=0;
for (i= count - 1; i > -1; i-= (rand()%3)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(sval, "%07x", values[i]);
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, &data))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

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@ -1,135 +0,0 @@
/* mtest5.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Tests for sorted duplicate DBs using cursor_put */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor;
int count;
int *values;
char sval[32];
char kval[sizeof(int)];
srand(time(NULL));
memset(sval, 0, sizeof(sval));
count = (rand()%384) + 64;
values = (int *)malloc(count*sizeof(int));
for(i = 0;i<count;i++) {
values[i] = rand()%1024;
}
E(mdb_env_create(&env));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi));
E(mdb_cursor_open(txn, dbi, &cursor));
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
printf("Adding %d values\n", count);
for (i=0;i<count;i++) {
if (!(i & 0x0f))
sprintf(kval, "%03x", values[i]);
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
if (RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NODUPDATA)))
j++;
}
if (j) printf("%d duplicates skipped\n", j);
mdb_cursor_close(cursor);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
j=0;
for (i= count - 1; i > -1; i-= (rand()%5)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(kval, "%03x", values[i & ~0x0f]);
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, &data))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

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@ -1,141 +0,0 @@
/* mtest6.c - memory-mapped database tester/toy */
/*
* Copyright 2011-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Tests for DB splits and merges */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
char dkbuf[1024];
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data, sdata;
MDB_txn *txn;
MDB_stat mst;
MDB_cursor *cursor;
int count;
int *values;
long kval;
char *sval;
srand(time(NULL));
E(mdb_env_create(&env));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_dbi_open(txn, "id6", MDB_CREATE|MDB_INTEGERKEY, &dbi));
E(mdb_cursor_open(txn, dbi, &cursor));
E(mdb_stat(txn, dbi, &mst));
sval = calloc(1, mst.ms_psize / 4);
key.mv_size = sizeof(long);
key.mv_data = &kval;
sdata.mv_size = mst.ms_psize / 4 - 30;
sdata.mv_data = sval;
printf("Adding 12 values, should yield 3 splits\n");
for (i=0;i<12;i++) {
kval = i*5;
sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
}
printf("Adding 12 more values, should yield 3 splits\n");
for (i=0;i<12;i++) {
kval = i*5+4;
sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
}
printf("Adding 12 more values, should yield 3 splits\n");
for (i=0;i<12;i++) {
kval = i*5+1;
sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
}
E(mdb_cursor_get(cursor, &key, &data, MDB_FIRST));
do {
printf("key: %p %s, data: %p %.*s\n",
key.mv_data, mdb_dkey(&key, dkbuf),
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
} while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0);
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_commit(txn);
#if 0
j=0;
for (i= count - 1; i > -1; i-= (rand()%5)) {
j++;
txn=NULL;
E(mdb_txn_begin(env, NULL, 0, &txn));
sprintf(kval, "%03x", values[i & ~0x0f]);
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
key.mv_size = sizeof(int);
key.mv_data = kval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, &data))) {
j--;
mdb_txn_abort(txn);
} else {
E(mdb_txn_commit(txn));
}
}
free(values);
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
printf("Cursor prev\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
printf("key: %.*s, data: %.*s\n",
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
}
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
#endif
mdb_env_close(env);
return 0;
}

View file

@ -1,73 +0,0 @@
/* sample-bdb.txt - BerkeleyDB toy/sample
*
* Do a line-by-line comparison of this and sample-mdb.txt
*/
/*
* Copyright 2012-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include <string.h>
#include <db.h>
int main(int argc,char * argv[])
{
int rc;
DB_ENV *env;
DB *dbi;
DBT key, data;
DB_TXN *txn;
DBC *cursor;
char sval[32], kval[32];
/* Note: Most error checking omitted for simplicity */
#define FLAGS (DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_INIT_MPOOL|DB_CREATE|DB_THREAD)
rc = db_env_create(&env, 0);
rc = env->open(env, "./testdb", FLAGS, 0664);
rc = db_create(&dbi, env, 0);
rc = env->txn_begin(env, NULL, &txn, 0);
rc = dbi->open(dbi, txn, "test.bdb", NULL, DB_BTREE, DB_CREATE, 0664);
memset(&key, 0, sizeof(DBT));
memset(&data, 0, sizeof(DBT));
key.size = sizeof(int);
key.data = sval;
data.size = sizeof(sval);
data.data = sval;
sprintf(sval, "%03x %d foo bar", 32, 3141592);
rc = dbi->put(dbi, txn, &key, &data, 0);
rc = txn->commit(txn, 0);
if (rc) {
fprintf(stderr, "txn->commit: (%d) %s\n", rc, db_strerror(rc));
goto leave;
}
rc = env->txn_begin(env, NULL, &txn, 0);
rc = dbi->cursor(dbi, txn, &cursor, 0);
key.flags = DB_DBT_USERMEM;
key.data = kval;
key.ulen = sizeof(kval);
data.flags = DB_DBT_USERMEM;
data.data = sval;
data.ulen = sizeof(sval);
while ((rc = cursor->c_get(cursor, &key, &data, DB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.data, (int) key.size, (char *) key.data,
data.data, (int) data.size, (char *) data.data);
}
rc = cursor->c_close(cursor);
rc = txn->abort(txn);
leave:
rc = dbi->close(dbi, 0);
rc = env->close(env, 0);
return rc;
}

View file

@ -1,62 +0,0 @@
/* sample-mdb.txt - MDB toy/sample
*
* Do a line-by-line comparison of this and sample-bdb.txt
*/
/*
* Copyright 2012-2015 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include <stdio.h>
#include "lmdb.h"
int main(int argc,char * argv[])
{
int rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_cursor *cursor;
char sval[32];
/* Note: Most error checking omitted for simplicity */
rc = mdb_env_create(&env);
rc = mdb_env_open(env, "./testdb", 0, 0664);
rc = mdb_txn_begin(env, NULL, 0, &txn);
rc = mdb_dbi_open(txn, NULL, 0, &dbi);
key.mv_size = sizeof(int);
key.mv_data = sval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
sprintf(sval, "%03x %d foo bar", 32, 3141592);
rc = mdb_put(txn, dbi, &key, &data, 0);
rc = mdb_txn_commit(txn);
if (rc) {
fprintf(stderr, "mdb_txn_commit: (%d) %s\n", rc, mdb_strerror(rc));
goto leave;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
rc = mdb_cursor_open(txn, dbi, &cursor);
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
leave:
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}

View file

@ -1,22 +0,0 @@
<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>