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updated in-source lmdb

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This commit is contained in:
Riccardo Spagni 2015-07-16 11:33:10 +02:00
parent ea08c768e2
commit e6ab2dfdf3
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10 changed files with 171 additions and 95 deletions
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17
external/db_drivers/liblmdb64/CHANGES vendored
View file

@ -1,18 +1,31 @@
LMDB 0.9 Change Log LMDB 0.9 Change Log
LMDB 0.9.15 Release Engineering 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)
Fix compact of empty env (ITS#7956) 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 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 Added workaround for fdatasync bug in ext3fs
Build Build
Don't use -fPIC for static lib Don't use -fPIC for static lib
Update .gitignore (ITS#7952,#7953) Update .gitignore (ITS#7952,#7953)
Cleanup for "make test" (ITS#7841) Cleanup for "make test" (ITS#7841), "make clean", mtest*.c
Misc. Android/Windows cleanup Misc. Android/Windows cleanup
Documentation Documentation
Fix MDB_APPEND doc 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 Clarify mdb_dbi_open doc
LMDB 0.9.14 Release (2014/09/20) LMDB 0.9.14 Release (2014/09/20)

38
external/db_drivers/liblmdb64/lmdb.h vendored
View file

@ -184,7 +184,7 @@ 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 14 #define MDB_VERSION_PATCH 15
/** 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 +194,7 @@ 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 "September 20, 2014" #define MDB_VERSION_DATE "June 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 ")"
@ -296,12 +296,12 @@ typedef void (MDB_rel_func)(MDB_val *item, void *oldptr, void *newptr, void *rel
#define MDB_REVERSEKEY 0x02 #define MDB_REVERSEKEY 0x02
/** use sorted duplicates */ /** use sorted duplicates */
#define MDB_DUPSORT 0x04 #define MDB_DUPSORT 0x04
/** numeric keys in native byte order. /** numeric keys in native byte order: either unsigned int or size_t.
* The keys must all be of the same size. */ * The keys must all be of the same size. */
#define MDB_INTEGERKEY 0x08 #define MDB_INTEGERKEY 0x08
/** with #MDB_DUPSORT, sorted dup items have fixed size */ /** with #MDB_DUPSORT, sorted dup items have fixed size */
#define MDB_DUPFIXED 0x10 #define MDB_DUPFIXED 0x10
/** with #MDB_DUPSORT, dups are numeric in native byte order */ /** with #MDB_DUPSORT, dups are #MDB_INTEGERKEY-style integers */
#define MDB_INTEGERDUP 0x20 #define MDB_INTEGERDUP 0x20
/** with #MDB_DUPSORT, use reverse string dups */ /** with #MDB_DUPSORT, use reverse string dups */
#define MDB_REVERSEDUP 0x40 #define MDB_REVERSEDUP 0x40
@ -588,8 +588,8 @@ int mdb_env_create(MDB_env **env);
* reserved in that case. * reserved in that case.
* This flag may be changed at any time using #mdb_env_set_flags(). * This flag may be changed at any time using #mdb_env_set_flags().
* </ul> * </ul>
* @param[in] mode The UNIX permissions to set on created files. This parameter * @param[in] mode The UNIX permissions to set on created files and semaphores.
* is ignored on Windows. * This parameter is ignored on Windows.
* @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
* errors are: * errors are:
* <ul> * <ul>
@ -1021,14 +1021,16 @@ int mdb_txn_renew(MDB_txn *txn);
* The database handle may be discarded by calling #mdb_dbi_close(). * The database handle may be discarded by calling #mdb_dbi_close().
* The old database handle is returned if the database was already open. * The old database handle is returned if the database was already open.
* The handle may only be closed once. * The handle may only be closed once.
*
* The database handle will be private to the current transaction until * The database handle will be private to the current transaction until
* the transaction is successfully committed. If the transaction is * the transaction is successfully committed. If the transaction is
* aborted the handle will be closed automatically. * aborted the handle will be closed automatically.
* After a successful commit the * After a successful commit the handle will reside in the shared
* handle will reside in the shared environment, and may be used * environment, and may be used by other transactions.
* by other transactions. This function must not be called from *
* multiple concurrent transactions in the same process. A transaction * This function must not be called from multiple concurrent
* that uses this function must finish (either commit or abort) before * transactions in the same process. A transaction that uses
* this function must finish (either commit or abort) before
* 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()
@ -1050,9 +1052,9 @@ int mdb_txn_renew(MDB_txn *txn);
* keys may have multiple data items, stored in sorted order.) By default * keys may have multiple data items, stored in sorted order.) By default
* keys must be unique and may have only a single data item. * keys must be unique and may have only a single data item.
* <li>#MDB_INTEGERKEY * <li>#MDB_INTEGERKEY
* Keys are binary integers in native byte order. Setting this option * Keys are binary integers in native byte order, either unsigned int
* requires all keys to be the same size, typically sizeof(int) * or size_t, and will be sorted as such.
* or sizeof(size_t). * The keys must all be of the same size.
* <li>#MDB_DUPFIXED * <li>#MDB_DUPFIXED
* This flag may only be used in combination with #MDB_DUPSORT. This option * This flag may only be used in combination with #MDB_DUPSORT. This option
* tells the library that the data items for this database are all the same * tells the library that the data items for this database are all the same
@ -1060,8 +1062,8 @@ int mdb_txn_renew(MDB_txn *txn);
* all data items are the same size, the #MDB_GET_MULTIPLE and #MDB_NEXT_MULTIPLE * all data items are the same size, the #MDB_GET_MULTIPLE and #MDB_NEXT_MULTIPLE
* cursor operations may be used to retrieve multiple items at once. * cursor operations may be used to retrieve multiple items at once.
* <li>#MDB_INTEGERDUP * <li>#MDB_INTEGERDUP
* This option specifies that duplicate data items are also integers, and * This option specifies that duplicate data items are binary integers,
* should be sorted as such. * similar to #MDB_INTEGERKEY keys.
* <li>#MDB_REVERSEDUP * <li>#MDB_REVERSEDUP
* This option specifies that duplicate data items should be compared as * This option specifies that duplicate data items should be compared as
* strings in reverse order. * strings in reverse order.
@ -1450,7 +1452,7 @@ int mdb_cursor_get(MDB_cursor *cursor, MDB_val *key, MDB_val *data,
* <ul> * <ul>
* <li>#MDB_MAP_FULL - the database is full, see #mdb_env_set_mapsize(). * <li>#MDB_MAP_FULL - the database is full, see #mdb_env_set_mapsize().
* <li>#MDB_TXN_FULL - the transaction has too many dirty pages. * <li>#MDB_TXN_FULL - the transaction has too many dirty pages.
* <li>EACCES - an attempt was made to modify a read-only database. * <li>EACCES - an attempt was made to write in a read-only transaction.
* <li>EINVAL - an invalid parameter was specified. * <li>EINVAL - an invalid parameter was specified.
* </ul> * </ul>
*/ */
@ -1470,7 +1472,7 @@ int mdb_cursor_put(MDB_cursor *cursor, MDB_val *key, MDB_val *data,
* @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
* errors are: * errors are:
* <ul> * <ul>
* <li>EACCES - an attempt was made to modify a read-only database. * <li>EACCES - an attempt was made to write in a read-only transaction.
* <li>EINVAL - an invalid parameter was specified. * <li>EINVAL - an invalid parameter was specified.
* </ul> * </ul>
*/ */

118
external/db_drivers/liblmdb64/mdb.c vendored
View file

@ -446,12 +446,17 @@ static txnid_t mdb_debug_start;
/** The version number for a database's lockfile format. */ /** The version number for a database's lockfile format. */
#define MDB_LOCK_VERSION 1 #define MDB_LOCK_VERSION 1
/** @brief The max size of a key we can write, or 0 for dynamic max. /** @brief The max size of a key we can write, or 0 for computed max.
* *
* Define this as 0 to compute the max from the page size. 511 * This macro should normally be left alone or set to 0.
* is default for backwards compat: liblmdb <= 0.9.10 can break * Note that a database with big keys or dupsort data cannot be
* when modifying a DB with keys/dupsort data bigger than its max. * reliably modified by a liblmdb which uses a smaller max.
* #MDB_DEVEL sets the default to 0. * The default is 511 for backwards compat, or 0 when #MDB_DEVEL.
*
* Other values are allowed, for backwards compat. However:
* A value bigger than the computed max can break if you do not
* know what you are doing, and liblmdb <= 0.9.10 can break when
* modifying a DB with keys/dupsort data bigger than its max.
* *
* Data items in an #MDB_DUPSORT database are also limited to * Data items in an #MDB_DUPSORT database are also limited to
* this size, since they're actually keys of a sub-DB. Keys and * this size, since they're actually keys of a sub-DB. Keys and
@ -1245,6 +1250,13 @@ static void mdb_default_cmp(MDB_txn *txn, MDB_dbi dbi);
static MDB_cmp_func mdb_cmp_memn, mdb_cmp_memnr, mdb_cmp_int, mdb_cmp_cint, mdb_cmp_long; static MDB_cmp_func mdb_cmp_memn, mdb_cmp_memnr, mdb_cmp_int, mdb_cmp_cint, mdb_cmp_long;
/** @endcond */ /** @endcond */
/** Compare two items pointing at size_t's of unknown alignment. */
#ifdef MISALIGNED_OK
# define mdb_cmp_clong mdb_cmp_long
#else
# define mdb_cmp_clong mdb_cmp_cint
#endif
#ifdef _WIN32 #ifdef _WIN32
static SECURITY_DESCRIPTOR mdb_null_sd; static SECURITY_DESCRIPTOR mdb_null_sd;
static SECURITY_ATTRIBUTES mdb_all_sa; static SECURITY_ATTRIBUTES mdb_all_sa;
@ -1558,7 +1570,12 @@ mdb_cmp(MDB_txn *txn, MDB_dbi dbi, const MDB_val *a, const MDB_val *b)
int int
mdb_dcmp(MDB_txn *txn, MDB_dbi dbi, const MDB_val *a, const MDB_val *b) mdb_dcmp(MDB_txn *txn, MDB_dbi dbi, const MDB_val *a, const MDB_val *b)
{ {
return txn->mt_dbxs[dbi].md_dcmp(a, b); MDB_cmp_func *dcmp = txn->mt_dbxs[dbi].md_dcmp;
#if UINT_MAX < SIZE_MAX
if (dcmp == mdb_cmp_int && a->mv_size == sizeof(size_t))
dcmp = mdb_cmp_clong;
#endif
return dcmp(a, b);
} }
/** Allocate memory for a page. /** Allocate memory for a page.
@ -2486,14 +2503,11 @@ mdb_txn_renew0(MDB_txn *txn)
MDB_env *env = txn->mt_env; MDB_env *env = txn->mt_env;
MDB_txninfo *ti = env->me_txns; MDB_txninfo *ti = env->me_txns;
MDB_meta *meta; MDB_meta *meta;
unsigned int i, nr; unsigned int i, nr, flags = txn->mt_flags;
uint16_t x; uint16_t x;
int rc, new_notls = 0; int rc, new_notls = 0;
if (txn->mt_flags & MDB_TXN_RDONLY) { if ((flags &= MDB_TXN_RDONLY) != 0) {
/* Setup db info */
txn->mt_numdbs = env->me_numdbs;
txn->mt_dbxs = env->me_dbxs; /* mostly static anyway */
if (!ti) { if (!ti) {
meta = env->me_metas[ mdb_env_pick_meta(env) ]; meta = env->me_metas[ mdb_env_pick_meta(env) ];
txn->mt_txnid = meta->mm_txnid; txn->mt_txnid = meta->mm_txnid;
@ -2546,6 +2560,7 @@ mdb_txn_renew0(MDB_txn *txn)
txn->mt_u.reader = r; txn->mt_u.reader = r;
meta = env->me_metas[txn->mt_txnid & 1]; meta = env->me_metas[txn->mt_txnid & 1];
} }
txn->mt_dbxs = env->me_dbxs; /* mostly static anyway */
} else { } else {
if (ti) { if (ti) {
LOCK_MUTEX_W(env); LOCK_MUTEX_W(env);
@ -2556,14 +2571,11 @@ mdb_txn_renew0(MDB_txn *txn)
meta = env->me_metas[ mdb_env_pick_meta(env) ]; meta = env->me_metas[ mdb_env_pick_meta(env) ];
txn->mt_txnid = meta->mm_txnid; txn->mt_txnid = meta->mm_txnid;
} }
/* Setup db info */
txn->mt_numdbs = env->me_numdbs;
txn->mt_txnid++; txn->mt_txnid++;
#if MDB_DEBUG #if MDB_DEBUG
if (txn->mt_txnid == mdb_debug_start) if (txn->mt_txnid == mdb_debug_start)
mdb_debug = 1; mdb_debug = 1;
#endif #endif
txn->mt_flags = 0;
txn->mt_child = NULL; txn->mt_child = NULL;
txn->mt_loose_pgs = NULL; txn->mt_loose_pgs = NULL;
txn->mt_loose_count = 0; txn->mt_loose_count = 0;
@ -2583,6 +2595,10 @@ mdb_txn_renew0(MDB_txn *txn)
/* Moved to here to avoid a data race in read TXNs */ /* Moved to here to avoid a data race in read TXNs */
txn->mt_next_pgno = meta->mm_last_pg+1; txn->mt_next_pgno = meta->mm_last_pg+1;
txn->mt_flags = flags;
/* Setup db info */
txn->mt_numdbs = env->me_numdbs;
for (i=2; i<txn->mt_numdbs; i++) { for (i=2; i<txn->mt_numdbs; i++) {
x = env->me_dbflags[i]; x = env->me_dbflags[i];
txn->mt_dbs[i].md_flags = x & PERSISTENT_FLAGS; txn->mt_dbs[i].md_flags = x & PERSISTENT_FLAGS;
@ -3132,6 +3148,7 @@ mdb_page_flush(MDB_txn *txn, int keep)
/* Write up to MDB_COMMIT_PAGES dirty pages at a time. */ /* Write up to MDB_COMMIT_PAGES dirty pages at a time. */
if (pos!=next_pos || n==MDB_COMMIT_PAGES || wsize+size>MAX_WRITE) { if (pos!=next_pos || n==MDB_COMMIT_PAGES || wsize+size>MAX_WRITE) {
if (n) { if (n) {
retry_write:
/* Write previous page(s) */ /* Write previous page(s) */
#ifdef MDB_USE_PWRITEV #ifdef MDB_USE_PWRITEV
wres = pwritev(env->me_fd, iov, n, wpos); wres = pwritev(env->me_fd, iov, n, wpos);
@ -3139,8 +3156,11 @@ mdb_page_flush(MDB_txn *txn, int keep)
if (n == 1) { if (n == 1) {
wres = pwrite(env->me_fd, iov[0].iov_base, wsize, wpos); wres = pwrite(env->me_fd, iov[0].iov_base, wsize, wpos);
} else { } else {
retry_seek:
if (lseek(env->me_fd, wpos, SEEK_SET) == -1) { if (lseek(env->me_fd, wpos, SEEK_SET) == -1) {
rc = ErrCode(); rc = ErrCode();
if (rc == EINTR)
goto retry_seek;
DPRINTF(("lseek: %s", strerror(rc))); DPRINTF(("lseek: %s", strerror(rc)));
return rc; return rc;
} }
@ -3150,6 +3170,8 @@ mdb_page_flush(MDB_txn *txn, int keep)
if (wres != wsize) { if (wres != wsize) {
if (wres < 0) { if (wres < 0) {
rc = ErrCode(); rc = ErrCode();
if (rc == EINTR)
goto retry_write;
DPRINTF(("Write error: %s", strerror(rc))); DPRINTF(("Write error: %s", strerror(rc)));
} else { } else {
rc = EIO; /* TODO: Use which error code? */ rc = EIO; /* TODO: Use which error code? */
@ -3519,7 +3541,8 @@ mdb_env_init_meta(MDB_env *env, MDB_meta *meta)
int len; int len;
#define DO_PWRITE(rc, fd, ptr, size, len, pos) do { \ #define DO_PWRITE(rc, fd, ptr, size, len, pos) do { \
len = pwrite(fd, ptr, size, pos); \ len = pwrite(fd, ptr, size, pos); \
rc = (len >= 0); } while(0) if (len == -1 && ErrCode() == EINTR) continue; \
rc = (len >= 0); break; } while(1)
#endif #endif
DPUTS("writing new meta page"); DPUTS("writing new meta page");
@ -3624,6 +3647,7 @@ mdb_env_write_meta(MDB_txn *txn)
/* Write to the SYNC fd */ /* Write to the SYNC fd */
mfd = env->me_flags & (MDB_NOSYNC|MDB_NOMETASYNC) ? mfd = env->me_flags & (MDB_NOSYNC|MDB_NOMETASYNC) ?
env->me_fd : env->me_mfd; env->me_fd : env->me_mfd;
retry_write:
#ifdef _WIN32 #ifdef _WIN32
{ {
memset(&ov, 0, sizeof(ov)); memset(&ov, 0, sizeof(ov));
@ -3636,6 +3660,8 @@ mdb_env_write_meta(MDB_txn *txn)
#endif #endif
if (rc != len) { if (rc != len) {
rc = rc < 0 ? ErrCode() : EIO; rc = rc < 0 ? ErrCode() : EIO;
if (rc == EINTR)
goto retry_write;
DPUTS("write failed, disk error?"); DPUTS("write failed, disk error?");
/* On a failure, the pagecache still contains the new data. /* On a failure, the pagecache still contains the new data.
* Write some old data back, to prevent it from being used. * Write some old data back, to prevent it from being used.
@ -4761,7 +4787,11 @@ mdb_cmp_long(const MDB_val *a, const MDB_val *b)
*(size_t *)a->mv_data > *(size_t *)b->mv_data; *(size_t *)a->mv_data > *(size_t *)b->mv_data;
} }
/** Compare two items pointing at aligned unsigned int's */ /** Compare two items pointing at aligned unsigned int's.
*
* This is also set as #MDB_INTEGERDUP|#MDB_DUPFIXED's #MDB_dbx.%md_dcmp,
* but #mdb_cmp_clong() is called instead if the data type is size_t.
*/
static int static int
mdb_cmp_int(const MDB_val *a, const MDB_val *b) mdb_cmp_int(const MDB_val *a, const MDB_val *b)
{ {
@ -4799,13 +4829,6 @@ mdb_cmp_cint(const MDB_val *a, const MDB_val *b)
#endif #endif
} }
/** Compare two items pointing at size_t's of unknown alignment. */
#ifdef MISALIGNED_OK
# define mdb_cmp_clong mdb_cmp_long
#else
# define mdb_cmp_clong mdb_cmp_cint
#endif
/** Compare two items lexically */ /** Compare two items lexically */
static int static int
mdb_cmp_memn(const MDB_val *a, const MDB_val *b) mdb_cmp_memn(const MDB_val *a, const MDB_val *b)
@ -5741,15 +5764,21 @@ set1:
return rc; return rc;
} }
} else if (op == MDB_GET_BOTH || op == MDB_GET_BOTH_RANGE) { } else if (op == MDB_GET_BOTH || op == MDB_GET_BOTH_RANGE) {
MDB_val d2; MDB_val olddata;
if ((rc = mdb_node_read(mc->mc_txn, leaf, &d2)) != MDB_SUCCESS) MDB_cmp_func *dcmp;
if ((rc = mdb_node_read(mc->mc_txn, leaf, &olddata)) != MDB_SUCCESS)
return rc; return rc;
rc = mc->mc_dbx->md_dcmp(data, &d2); dcmp = mc->mc_dbx->md_dcmp;
#if UINT_MAX < SIZE_MAX
if (dcmp == mdb_cmp_int && olddata.mv_size == sizeof(size_t))
dcmp = mdb_cmp_clong;
#endif
rc = dcmp(data, &olddata);
if (rc) { if (rc) {
if (op == MDB_GET_BOTH || rc > 0) if (op == MDB_GET_BOTH || rc > 0)
return MDB_NOTFOUND; return MDB_NOTFOUND;
rc = 0; rc = 0;
*data = d2; *data = olddata;
} }
} else { } else {
@ -6259,16 +6288,17 @@ more:
/* Was a single item before, must convert now */ /* Was a single item before, must convert now */
if (!F_ISSET(leaf->mn_flags, F_DUPDATA)) { if (!F_ISSET(leaf->mn_flags, F_DUPDATA)) {
MDB_cmp_func *dcmp;
/* Just overwrite the current item */ /* Just overwrite the current item */
if (flags == MDB_CURRENT) if (flags == MDB_CURRENT)
goto current; goto current;
dcmp = mc->mc_dbx->md_dcmp;
#if UINT_MAX < SIZE_MAX #if UINT_MAX < SIZE_MAX
if (mc->mc_dbx->md_dcmp == mdb_cmp_int && olddata.mv_size == sizeof(size_t)) if (dcmp == mdb_cmp_int && olddata.mv_size == sizeof(size_t))
mc->mc_dbx->md_dcmp = mdb_cmp_clong; dcmp = mdb_cmp_clong;
#endif #endif
/* does data match? */ /* does data match? */
if (!mc->mc_dbx->md_dcmp(data, &olddata)) { if (!dcmp(data, &olddata)) {
if (flags & MDB_NODUPDATA) if (flags & MDB_NODUPDATA)
return MDB_KEYEXIST; return MDB_KEYEXIST;
/* overwrite it */ /* overwrite it */
@ -7088,6 +7118,7 @@ mdb_cursor_init(MDB_cursor *mc, MDB_txn *txn, MDB_dbi dbi, MDB_xcursor *mx)
mc->mc_snum = 0; mc->mc_snum = 0;
mc->mc_top = 0; mc->mc_top = 0;
mc->mc_pg[0] = 0; mc->mc_pg[0] = 0;
mc->mc_ki[0] = 0;
mc->mc_flags = 0; mc->mc_flags = 0;
if (txn->mt_dbs[dbi].md_flags & MDB_DUPSORT) { if (txn->mt_dbs[dbi].md_flags & MDB_DUPSORT) {
mdb_tassert(txn, mx != NULL); mdb_tassert(txn, mx != NULL);
@ -7717,12 +7748,12 @@ mdb_rebalance(MDB_cursor *mc)
m3 = m2; m3 = m2;
if (m3 == mc || m3->mc_snum < mc->mc_snum) continue; if (m3 == mc || m3->mc_snum < mc->mc_snum) continue;
if (m3->mc_pg[0] == mp) { if (m3->mc_pg[0] == mp) {
m3->mc_snum--;
m3->mc_top--;
for (i=0; i<m3->mc_snum; i++) { for (i=0; i<m3->mc_snum; i++) {
m3->mc_pg[i] = m3->mc_pg[i+1]; m3->mc_pg[i] = m3->mc_pg[i+1];
m3->mc_ki[i] = m3->mc_ki[i+1]; m3->mc_ki[i] = m3->mc_ki[i+1];
} }
m3->mc_snum--;
m3->mc_top--;
} }
} }
} }
@ -7790,9 +7821,23 @@ mdb_rebalance(MDB_cursor *mc)
if (mc->mc_ki[ptop] == 0) { if (mc->mc_ki[ptop] == 0) {
rc = mdb_page_merge(&mn, mc); rc = mdb_page_merge(&mn, mc);
} else { } else {
MDB_cursor dummy;
oldki += NUMKEYS(mn.mc_pg[mn.mc_top]); oldki += NUMKEYS(mn.mc_pg[mn.mc_top]);
mn.mc_ki[mn.mc_top] += mc->mc_ki[mn.mc_top] + 1; mn.mc_ki[mn.mc_top] += mc->mc_ki[mn.mc_top] + 1;
/* We want mdb_rebalance to find mn when doing fixups */
if (mc->mc_flags & C_SUB) {
dummy.mc_next = mc->mc_txn->mt_cursors[mc->mc_dbi];
mc->mc_txn->mt_cursors[mc->mc_dbi] = &dummy;
dummy.mc_xcursor = (MDB_xcursor *)&mn;
} else {
mn.mc_next = mc->mc_txn->mt_cursors[mc->mc_dbi];
mc->mc_txn->mt_cursors[mc->mc_dbi] = &mn;
}
rc = mdb_page_merge(mc, &mn); rc = mdb_page_merge(mc, &mn);
if (mc->mc_flags & C_SUB)
mc->mc_txn->mt_cursors[mc->mc_dbi] = dummy.mc_next;
else
mc->mc_txn->mt_cursors[mc->mc_dbi] = mn.mc_next;
mdb_cursor_copy(&mn, mc); mdb_cursor_copy(&mn, mc);
} }
mc->mc_flags &= ~C_EOF; mc->mc_flags &= ~C_EOF;
@ -7819,6 +7864,13 @@ mdb_cursor_del0(MDB_cursor *mc)
MDB_cursor *m2, *m3; MDB_cursor *m2, *m3;
MDB_dbi dbi = mc->mc_dbi; MDB_dbi dbi = mc->mc_dbi;
/* DB is totally empty now, just bail out.
* Other cursors adjustments were already done
* by mdb_rebalance and aren't needed here.
*/
if (!mc->mc_snum)
return rc;
mp = mc->mc_pg[mc->mc_top]; mp = mc->mc_pg[mc->mc_top];
nkeys = NUMKEYS(mp); nkeys = NUMKEYS(mp);

18
external/db_drivers/liblmdb64/mtest.c vendored
View file

@ -45,19 +45,22 @@ int main(int argc,char * argv[])
} }
E(mdb_env_create(&env)); E(mdb_env_create(&env));
E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP /*|MDB_NOSYNC*/, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP /*|MDB_NOSYNC*/, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, NULL, 0, &dbi)); E(mdb_dbi_open(txn, NULL, 0, &dbi));
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
key.mv_data = sval; key.mv_data = sval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
printf("Adding %d values\n", count); printf("Adding %d values\n", count);
for (i=0;i<count;i++) { for (i=0;i<count;i++) {
sprintf(sval, "%03x %d foo bar", values[i], values[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))) { if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE))) {
j++; j++;
data.mv_size = sizeof(sval); data.mv_size = sizeof(sval);
@ -68,7 +71,7 @@ int main(int argc,char * argv[])
E(mdb_txn_commit(txn)); E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n", printf("key: %p %.*s, data: %p %.*s\n",
@ -97,7 +100,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -128,6 +131,7 @@ int main(int argc,char * argv[])
(int) key.mv_size, (char *) key.mv_data, (int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data); (int) data.mv_size, (char *) data.mv_data);
mdb_cursor_close(cursor);
mdb_txn_abort(txn); mdb_txn_abort(txn);
printf("Deleting with cursor\n"); printf("Deleting with cursor\n");
@ -164,9 +168,9 @@ int main(int argc,char * argv[])
data.mv_data, (int) data.mv_size, (char *) data.mv_data); data.mv_data, (int) data.mv_size, (char *) data.mv_data);
} }
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
mdb_env_close(env); mdb_env_close(env);
return 0; return 0;

17
external/db_drivers/liblmdb64/mtest2.c vendored
View file

@ -47,20 +47,22 @@ int main(int argc,char * argv[])
} }
E(mdb_env_create(&env)); E(mdb_env_create(&env));
E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4)); E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, "id1", MDB_CREATE, &dbi)); E(mdb_dbi_open(txn, "id1", MDB_CREATE, &dbi));
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
key.mv_data = sval; key.mv_data = sval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
printf("Adding %d values\n", count); printf("Adding %d values\n", count);
for (i=0;i<count;i++) { for (i=0;i<count;i++) {
sprintf(sval, "%03x %d foo bar", values[i], values[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))) if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE)))
j++; j++;
} }
@ -68,7 +70,7 @@ int main(int argc,char * argv[])
E(mdb_txn_commit(txn)); E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n", printf("key: %p %.*s, data: %p %.*s\n",
@ -97,7 +99,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -114,10 +116,9 @@ int main(int argc,char * argv[])
} }
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get"); CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_env_close(env);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0; return 0;
} }

12
external/db_drivers/liblmdb64/mtest3.c vendored
View file

@ -53,8 +53,9 @@ int main(int argc,char * argv[])
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4)); E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi)); E(mdb_dbi_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi));
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
key.mv_data = kval; key.mv_data = kval;
@ -73,7 +74,7 @@ int main(int argc,char * argv[])
E(mdb_txn_commit(txn)); E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n", printf("key: %p %.*s, data: %p %.*s\n",
@ -107,7 +108,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -124,10 +125,9 @@ int main(int argc,char * argv[])
} }
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get"); CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_env_close(env);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0; return 0;
} }

12
external/db_drivers/liblmdb64/mtest4.c vendored
View file

@ -51,8 +51,9 @@ int main(int argc,char * argv[])
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4)); E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, "id4", MDB_CREATE|MDB_DUPSORT|MDB_DUPFIXED, &dbi)); E(mdb_dbi_open(txn, "id4", MDB_CREATE|MDB_DUPSORT|MDB_DUPFIXED, &dbi));
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
key.mv_data = kval; key.mv_data = kval;
@ -72,7 +73,7 @@ int main(int argc,char * argv[])
/* there should be one full page of dups now. /* there should be one full page of dups now.
*/ */
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n", printf("key: %p %.*s, data: %p %.*s\n",
@ -142,7 +143,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -159,10 +160,9 @@ int main(int argc,char * argv[])
} }
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get"); CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_env_close(env);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0; return 0;
} }

12
external/db_drivers/liblmdb64/mtest5.c vendored
View file

@ -53,8 +53,9 @@ int main(int argc,char * argv[])
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4)); E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi)); E(mdb_dbi_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
@ -75,7 +76,7 @@ int main(int argc,char * argv[])
E(mdb_txn_commit(txn)); E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n", printf("key: %p %.*s, data: %p %.*s\n",
@ -109,7 +110,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -126,10 +127,9 @@ int main(int argc,char * argv[])
} }
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get"); CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_env_close(env);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0; return 0;
} }

18
external/db_drivers/liblmdb64/mtest6.c vendored
View file

@ -31,7 +31,7 @@ int main(int argc,char * argv[])
int i = 0, j = 0, rc; int i = 0, j = 0, rc;
MDB_env *env; MDB_env *env;
MDB_dbi dbi; MDB_dbi dbi;
MDB_val key, data; MDB_val key, data, sdata;
MDB_txn *txn; MDB_txn *txn;
MDB_stat mst; MDB_stat mst;
MDB_cursor *cursor; MDB_cursor *cursor;
@ -46,33 +46,37 @@ int main(int argc,char * argv[])
E(mdb_env_set_mapsize(env, 10485760)); E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4)); E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664)); E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn)); E(mdb_txn_begin(env, NULL, 0, &txn));
E(mdb_open(txn, "id6", MDB_CREATE|MDB_INTEGERKEY, &dbi)); E(mdb_dbi_open(txn, "id6", MDB_CREATE|MDB_INTEGERKEY, &dbi));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
E(mdb_stat(txn, dbi, &mst)); E(mdb_stat(txn, dbi, &mst));
sval = calloc(1, mst.ms_psize / 4); sval = calloc(1, mst.ms_psize / 4);
key.mv_size = sizeof(long); key.mv_size = sizeof(long);
key.mv_data = &kval; key.mv_data = &kval;
data.mv_size = mst.ms_psize / 4 - 30; sdata.mv_size = mst.ms_psize / 4 - 30;
data.mv_data = sval; sdata.mv_data = sval;
printf("Adding 12 values, should yield 3 splits\n"); printf("Adding 12 values, should yield 3 splits\n");
for (i=0;i<12;i++) { for (i=0;i<12;i++) {
kval = i*5; kval = i*5;
sprintf(sval, "%08x", kval); sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE)); (void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
} }
printf("Adding 12 more values, should yield 3 splits\n"); printf("Adding 12 more values, should yield 3 splits\n");
for (i=0;i<12;i++) { for (i=0;i<12;i++) {
kval = i*5+4; kval = i*5+4;
sprintf(sval, "%08x", kval); sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE)); (void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
} }
printf("Adding 12 more values, should yield 3 splits\n"); printf("Adding 12 more values, should yield 3 splits\n");
for (i=0;i<12;i++) { for (i=0;i<12;i++) {
kval = i*5+1; kval = i*5+1;
sprintf(sval, "%08x", kval); sprintf(sval, "%08x", kval);
data = sdata;
(void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE)); (void)RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NOOVERWRITE));
} }
E(mdb_cursor_get(cursor, &key, &data, MDB_FIRST)); E(mdb_cursor_get(cursor, &key, &data, MDB_FIRST));
@ -110,7 +114,7 @@ int main(int argc,char * argv[])
printf("Deleted %d values\n", j); printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst)); E(mdb_env_stat(env, &mst));
E(mdb_txn_begin(env, NULL, 1, &txn)); E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor)); E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n"); printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) { while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
@ -127,9 +131,9 @@ int main(int argc,char * argv[])
} }
CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get"); CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_close(env, dbi);
mdb_txn_abort(txn); mdb_txn_abort(txn);
mdb_dbi_close(env, dbi);
#endif #endif
mdb_env_close(env); mdb_env_close(env);

4
external/db_drivers/liblmdb64/sample-mdb.txt vendored
View file

@ -32,7 +32,7 @@ int main(int argc,char * argv[])
rc = mdb_env_create(&env); rc = mdb_env_create(&env);
rc = mdb_env_open(env, "./testdb", 0, 0664); rc = mdb_env_open(env, "./testdb", 0, 0664);
rc = mdb_txn_begin(env, NULL, 0, &txn); rc = mdb_txn_begin(env, NULL, 0, &txn);
rc = mdb_open(txn, NULL, 0, &dbi); rc = mdb_dbi_open(txn, NULL, 0, &dbi);
key.mv_size = sizeof(int); key.mv_size = sizeof(int);
key.mv_data = sval; key.mv_data = sval;
@ -56,7 +56,7 @@ int main(int argc,char * argv[])
mdb_cursor_close(cursor); mdb_cursor_close(cursor);
mdb_txn_abort(txn); mdb_txn_abort(txn);
leave: leave:
mdb_close(env, dbi); mdb_dbi_close(env, dbi);
mdb_env_close(env); mdb_env_close(env);
return 0; return 0;
} }