#ifndef _WIN32
#include <pthread.h>
#ifdef MDB_USE_POSIX_SEM
+# define MDB_USE_HASH 1
#include <semaphore.h>
#endif
#endif
* @{
*/
#ifdef _WIN32
+#define MDB_USE_HASH 1
#define MDB_PIDLOCK 0
#define pthread_t DWORD
#define pthread_mutex_t HANDLE
int prot = PROT_READ;
if (flags & MDB_WRITEMAP) {
prot |= PROT_WRITE;
- if (newsize && ftruncate(env->me_fd, env->me_mapsize) < 0)
+ if (ftruncate(env->me_fd, env->me_mapsize) < 0)
return ErrCode();
}
env->me_map = mmap(addr, env->me_mapsize, prot, MAP_SHARED,
env->me_map = NULL;
return ErrCode();
}
- /* Turn off readahead. It's harmful when the DB is larger than RAM. */
+
+ if (flags & MDB_NORDAHEAD) {
+ /* Turn off readahead. It's harmful when the DB is larger than RAM. */
#ifdef MADV_RANDOM
- madvise(env->me_map, env->me_mapsize, MADV_RANDOM);
+ madvise(env->me_map, env->me_mapsize, MADV_RANDOM);
#else
#ifdef POSIX_MADV_RANDOM
- posix_madvise(env->me_map, env->me_mapsize, POSIX_MADV_RANDOM);
+ posix_madvise(env->me_map, env->me_mapsize, POSIX_MADV_RANDOM);
#endif /* POSIX_MADV_RANDOM */
#endif /* MADV_RANDOM */
+ }
#endif /* _WIN32 */
/* Can happen because the address argument to mmap() is just a
return EINVAL;
if (!size)
size = env->me_metas[mdb_env_pick_meta(env)]->mm_mapsize;
+ else if (size < env->me_mapsize) {
+ /* If the configured size is smaller, make sure it's
+ * still big enough. Silently round up to minimum if not.
+ */
+ size_t minsize = (env->me_metas[mdb_env_pick_meta(env)]->mm_last_pg + 1) * env->me_psize;
+ if (size < minsize)
+ size = minsize;
+ }
munmap(env->me_map, env->me_mapsize);
env->me_mapsize = size;
old = (env->me_flags & MDB_FIXEDMAP) ? env->me_map : NULL;
return rc;
}
-#if defined(_WIN32) || defined(MDB_USE_POSIX_SEM)
+#ifdef MDB_USE_HASH
/*
* hash_64 - 64 bit Fowler/Noll/Vo-0 FNV-1a hash code
*
* environment and re-opening it with the new flags.
*/
#define CHANGEABLE (MDB_NOSYNC|MDB_NOMETASYNC|MDB_MAPASYNC)
-#define CHANGELESS (MDB_FIXEDMAP|MDB_NOSUBDIR|MDB_RDONLY|MDB_WRITEMAP|MDB_NOTLS|MDB_NOLOCK)
+#define CHANGELESS (MDB_FIXEDMAP|MDB_NOSUBDIR|MDB_RDONLY|MDB_WRITEMAP|MDB_NOTLS|MDB_NOLOCK|MDB_NORDAHEAD)
int
mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mdb_mode_t mode)
rc = EINVAL;
} else {
MDB_page *mp = mc->mc_pg[mc->mc_top];
- if (!NUMKEYS(mp)) {
- mc->mc_ki[mc->mc_top] = 0;
+ int nkeys = NUMKEYS(mp);
+ if (!nkeys || mc->mc_ki[mc->mc_top] >= nkeys) {
+ mc->mc_ki[mc->mc_top] = nkeys;
rc = MDB_NOTFOUND;
break;
}
mdb_cursor_del(MDB_cursor *mc, unsigned int flags)
{
MDB_node *leaf;
+ MDB_page *mp;
int rc;
if (mc->mc_txn->mt_flags & (MDB_TXN_RDONLY|MDB_TXN_ERROR))
if (!(mc->mc_flags & C_INITIALIZED))
return EINVAL;
+ if (mc->mc_ki[mc->mc_top] >= NUMKEYS(mc->mc_pg[mc->mc_top]))
+ return MDB_NOTFOUND;
+
if (!(flags & MDB_NOSPILL) && (rc = mdb_page_spill(mc, NULL, NULL)))
return rc;
if (rc)
return rc;
- leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
+ mp = mc->mc_pg[mc->mc_top];
+ leaf = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
- if (!IS_LEAF2(mc->mc_pg[mc->mc_top]) && F_ISSET(leaf->mn_flags, F_DUPDATA)) {
+ if (!IS_LEAF2(mp) && F_ISSET(leaf->mn_flags, F_DUPDATA)) {
if (!(flags & MDB_NODUPDATA)) {
if (!F_ISSET(leaf->mn_flags, F_SUBDATA)) {
mc->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(leaf);
} else {
MDB_cursor *m2;
/* shrink fake page */
- mdb_node_shrink(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
- leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
+ mdb_node_shrink(mp, mc->mc_ki[mc->mc_top]);
+ leaf = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
mc->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(leaf);
/* fix other sub-DB cursors pointed at this fake page */
for (m2 = mc->mc_txn->mt_cursors[mc->mc_dbi]; m2; m2=m2->mc_next) {
if (m2 == mc || m2->mc_snum < mc->mc_snum) continue;
- if (m2->mc_pg[mc->mc_top] == mc->mc_pg[mc->mc_top] &&
+ if (m2->mc_pg[mc->mc_top] == mp &&
m2->mc_ki[mc->mc_top] == mc->mc_ki[mc->mc_top])
m2->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(leaf);
}
/* Adjust cursors pointing to mp */
mc->mc_snum = 0;
mc->mc_top = 0;
+ mc->mc_flags &= ~C_INITIALIZED;
{
MDB_cursor *m2, *m3;
MDB_dbi dbi = mc->mc_dbi;
if (m3->mc_pg[0] == mp) {
m3->mc_snum = 0;
m3->mc_top = 0;
+ m3->mc_flags &= ~C_INITIALIZED;
}
}
}
m3 = m2;
if (m3 == mc || m3->mc_snum < mc->mc_snum) continue;
if (m3->mc_pg[0] == mp) {
- m3->mc_pg[0] = mc->mc_pg[0];
- m3->mc_snum = 1;
- m3->mc_top = 0;
- m3->mc_ki[0] = m3->mc_ki[1];
+ int i;
+ m3->mc_snum--;
+ m3->mc_top--;
+ for (i=0; i<m3->mc_snum; i++) {
+ m3->mc_pg[i] = m3->mc_pg[i+1];
+ m3->mc_ki[i] = m3->mc_ki[i+1];
+ }
}
}
}
unsigned int nflags)
{
unsigned int flags;
- int rc = MDB_SUCCESS, ins_new = 0, new_root = 0, newpos = 1, did_split = 0;
+ int rc = MDB_SUCCESS, new_root = 0, did_split = 0;
indx_t newindx;
pgno_t pgno = 0;
- unsigned int i, j, split_indx, nkeys, pmax;
+ int i, j, split_indx, nkeys, pmax;
+ MDB_env *env = mc->mc_txn->mt_env;
MDB_node *node;
MDB_val sepkey, rkey, xdata, *rdata = &xdata;
- MDB_page *copy;
+ MDB_page *copy = NULL;
MDB_page *mp, *rp, *pp;
- unsigned int ptop;
+ int ptop;
MDB_cursor mn;
DKBUF;
mp = mc->mc_pg[mc->mc_top];
newindx = mc->mc_ki[mc->mc_top];
+ nkeys = NUMKEYS(mp);
- DPRINTF(("-----> splitting %s page %"Z"u and adding [%s] at index %i",
+ DPRINTF(("-----> splitting %s page %"Z"u and adding [%s] at index %i/%i",
IS_LEAF(mp) ? "leaf" : "branch", mp->mp_pgno,
- DKEY(newkey), mc->mc_ki[mc->mc_top]));
+ DKEY(newkey), mc->mc_ki[mc->mc_top], nkeys));
/* Create a right sibling. */
if ((rc = mdb_page_new(mc, mp->mp_flags, 1, &rp)))
sepkey = *newkey;
split_indx = newindx;
nkeys = 0;
- goto newsep;
- }
+ } else {
- nkeys = NUMKEYS(mp);
- split_indx = nkeys / 2;
- if (newindx < split_indx)
- newpos = 0;
-
- if (IS_LEAF2(rp)) {
- char *split, *ins;
- int x;
- unsigned int lsize, rsize, ksize;
- /* Move half of the keys to the right sibling */
- copy = NULL;
- x = mc->mc_ki[mc->mc_top] - split_indx;
- ksize = mc->mc_db->md_pad;
- split = LEAF2KEY(mp, split_indx, ksize);
- rsize = (nkeys - split_indx) * ksize;
- lsize = (nkeys - split_indx) * sizeof(indx_t);
- mp->mp_lower -= lsize;
- rp->mp_lower += lsize;
- mp->mp_upper += rsize - lsize;
- rp->mp_upper -= rsize - lsize;
- sepkey.mv_size = ksize;
- if (newindx == split_indx) {
- sepkey.mv_data = newkey->mv_data;
- } else {
- sepkey.mv_data = split;
- }
- if (x<0) {
- ins = LEAF2KEY(mp, mc->mc_ki[mc->mc_top], ksize);
- memcpy(rp->mp_ptrs, split, rsize);
- sepkey.mv_data = rp->mp_ptrs;
- memmove(ins+ksize, ins, (split_indx - mc->mc_ki[mc->mc_top]) * ksize);
- memcpy(ins, newkey->mv_data, ksize);
- mp->mp_lower += sizeof(indx_t);
- mp->mp_upper -= ksize - sizeof(indx_t);
+ split_indx = (nkeys+1) / 2;
+
+ if (IS_LEAF2(rp)) {
+ char *split, *ins;
+ int x;
+ unsigned int lsize, rsize, ksize;
+ /* Move half of the keys to the right sibling */
+ copy = NULL;
+ x = mc->mc_ki[mc->mc_top] - split_indx;
+ ksize = mc->mc_db->md_pad;
+ split = LEAF2KEY(mp, split_indx, ksize);
+ rsize = (nkeys - split_indx) * ksize;
+ lsize = (nkeys - split_indx) * sizeof(indx_t);
+ mp->mp_lower -= lsize;
+ rp->mp_lower += lsize;
+ mp->mp_upper += rsize - lsize;
+ rp->mp_upper -= rsize - lsize;
+ sepkey.mv_size = ksize;
+ if (newindx == split_indx) {
+ sepkey.mv_data = newkey->mv_data;
+ } else {
+ sepkey.mv_data = split;
+ }
+ if (x<0) {
+ ins = LEAF2KEY(mp, mc->mc_ki[mc->mc_top], ksize);
+ memcpy(rp->mp_ptrs, split, rsize);
+ sepkey.mv_data = rp->mp_ptrs;
+ memmove(ins+ksize, ins, (split_indx - mc->mc_ki[mc->mc_top]) * ksize);
+ memcpy(ins, newkey->mv_data, ksize);
+ mp->mp_lower += sizeof(indx_t);
+ mp->mp_upper -= ksize - sizeof(indx_t);
+ } else {
+ if (x)
+ memcpy(rp->mp_ptrs, split, x * ksize);
+ ins = LEAF2KEY(rp, x, ksize);
+ memcpy(ins, newkey->mv_data, ksize);
+ memcpy(ins+ksize, split + x * ksize, rsize - x * ksize);
+ rp->mp_lower += sizeof(indx_t);
+ rp->mp_upper -= ksize - sizeof(indx_t);
+ mc->mc_ki[mc->mc_top] = x;
+ mc->mc_pg[mc->mc_top] = rp;
+ }
} else {
- if (x)
- memcpy(rp->mp_ptrs, split, x * ksize);
- ins = LEAF2KEY(rp, x, ksize);
- memcpy(ins, newkey->mv_data, ksize);
- memcpy(ins+ksize, split + x * ksize, rsize - x * ksize);
- rp->mp_lower += sizeof(indx_t);
- rp->mp_upper -= ksize - sizeof(indx_t);
- mc->mc_ki[mc->mc_top] = x;
- mc->mc_pg[mc->mc_top] = rp;
- }
- goto newsep;
- }
+ int psize, nsize, k;
+ /* Maximum free space in an empty page */
+ pmax = env->me_psize - PAGEHDRSZ;
+ if (IS_LEAF(mp))
+ nsize = mdb_leaf_size(env, newkey, newdata);
+ else
+ nsize = mdb_branch_size(env, newkey);
+ nsize += nsize & 1;
- /* For leaf pages, check the split point based on what
- * fits where, since otherwise mdb_node_add can fail.
- *
- * This check is only needed when the data items are
- * relatively large, such that being off by one will
- * make the difference between success or failure.
- *
- * It's also relevant if a page happens to be laid out
- * such that one half of its nodes are all "small" and
- * the other half of its nodes are "large." If the new
- * item is also "large" and falls on the half with
- * "large" nodes, it also may not fit.
- */
- if (IS_LEAF(mp)) {
- unsigned int psize, nsize;
- /* Maximum free space in an empty page */
- pmax = mc->mc_txn->mt_env->me_psize - PAGEHDRSZ;
- nsize = mdb_leaf_size(mc->mc_txn->mt_env, newkey, newdata);
- if ((nkeys < 20) || (nsize > pmax/16)) {
- if (newindx <= split_indx) {
- psize = nsize;
- newpos = 0;
- for (i=0; i<split_indx; i++) {
- node = NODEPTR(mp, i);
- psize += NODESIZE + NODEKSZ(node) + sizeof(indx_t);
- if (F_ISSET(node->mn_flags, F_BIGDATA))
- psize += sizeof(pgno_t);
- else
- psize += NODEDSZ(node);
- psize += psize & 1;
- if (psize > pmax) {
- if (i <= newindx) {
- split_indx = newindx;
- if (i < newindx)
- newpos = 1;
+ /* grab a page to hold a temporary copy */
+ copy = mdb_page_malloc(mc->mc_txn, 1);
+ if (copy == NULL)
+ return ENOMEM;
+ copy->mp_pgno = mp->mp_pgno;
+ copy->mp_flags = mp->mp_flags;
+ copy->mp_lower = PAGEHDRSZ;
+ copy->mp_upper = env->me_psize;
+
+ /* prepare to insert */
+ for (i=0, j=0; i<nkeys; i++) {
+ if (i == newindx) {
+ copy->mp_ptrs[j++] = 0;
+ }
+ copy->mp_ptrs[j++] = mp->mp_ptrs[i];
+ }
+
+ /* When items are relatively large the split point needs
+ * to be checked, because being off-by-one will make the
+ * difference between success or failure in mdb_node_add.
+ *
+ * It's also relevant if a page happens to be laid out
+ * such that one half of its nodes are all "small" and
+ * the other half of its nodes are "large." If the new
+ * item is also "large" and falls on the half with
+ * "large" nodes, it also may not fit.
+ *
+ * As a final tweak, if the new item goes on the last
+ * spot on the page (and thus, onto the new page), bias
+ * the split so the new page is emptier than the old page.
+ * This yields better packing during sequential inserts.
+ */
+ if (nkeys < 20 || nsize > pmax/16 || newindx >= nkeys) {
+ /* Find split point */
+ psize = 0;
+ if (newindx <= split_indx || newindx >= nkeys) {
+ i = 0; j = 1;
+ k = newindx >= nkeys ? nkeys : split_indx+1;
+ } else {
+ i = nkeys; j = -1;
+ k = split_indx-1;
+ }
+ for (; i!=k; i+=j) {
+ if (i == newindx) {
+ psize += nsize;
+ node = NULL;
+ } else {
+ node = (MDB_node *)((char *)mp + copy->mp_ptrs[i]);
+ psize += NODESIZE + NODEKSZ(node) + sizeof(indx_t);
+ if (IS_LEAF(mp)) {
+ if (F_ISSET(node->mn_flags, F_BIGDATA))
+ psize += sizeof(pgno_t);
+ else
+ psize += NODEDSZ(node);
}
- else
- split_indx = i;
- break;
+ psize += psize & 1;
}
- }
- } else {
- psize = nsize;
- for (i=nkeys-1; i>=split_indx; i--) {
- node = NODEPTR(mp, i);
- psize += NODESIZE + NODEKSZ(node) + sizeof(indx_t);
- if (F_ISSET(node->mn_flags, F_BIGDATA))
- psize += sizeof(pgno_t);
- else
- psize += NODEDSZ(node);
- psize += psize & 1;
if (psize > pmax) {
- if (i >= newindx) {
- split_indx = newindx;
- newpos = 0;
- } else
- split_indx = i+1;
+ split_indx = i + (j<0);
break;
}
}
+ /* special case: when the new node was on the last
+ * slot we may not have tripped the break inside the loop.
+ * In all other cases we either hit the break condition,
+ * or the original split_indx was already safe.
+ */
+ if (newindx >= nkeys && i == k)
+ split_indx = nkeys-1;
+ }
+ if (split_indx == newindx) {
+ sepkey.mv_size = newkey->mv_size;
+ sepkey.mv_data = newkey->mv_data;
+ } else {
+ node = (MDB_node *)((char *)mp + copy->mp_ptrs[split_indx]);
+ sepkey.mv_size = node->mn_ksize;
+ sepkey.mv_data = NODEKEY(node);
}
}
}
- /* First find the separating key between the split pages.
- * The case where newindx == split_indx is ambiguous; the
- * new item could go to the new page or stay on the original
- * page. If newpos == 1 it goes to the new page.
- */
- if (newindx == split_indx && newpos) {
- sepkey.mv_size = newkey->mv_size;
- sepkey.mv_data = newkey->mv_data;
- } else {
- node = NODEPTR(mp, split_indx);
- sepkey.mv_size = node->mn_ksize;
- sepkey.mv_data = NODEKEY(node);
- }
-
-newsep:
- DPRINTF(("separator is [%s]", DKEY(&sepkey)));
+ DPRINTF(("separator is %d [%s]", split_indx, DKEY(&sepkey)));
/* Copy separator key to the parent.
*/
- if (SIZELEFT(mn.mc_pg[ptop]) < mdb_branch_size(mc->mc_txn->mt_env, &sepkey)) {
+ if (SIZELEFT(mn.mc_pg[ptop]) < mdb_branch_size(env, &sepkey)) {
mn.mc_snum--;
mn.mc_top--;
did_split = 1;
return rc;
for (i=0; i<mc->mc_top; i++)
mc->mc_ki[i] = mn.mc_ki[i];
- goto done;
- }
- if (IS_LEAF2(rp)) {
- goto done;
- }
-
- /* Move half of the keys to the right sibling. */
+ } else if (!IS_LEAF2(mp)) {
+ /* Move nodes */
+ mc->mc_pg[mc->mc_top] = rp;
+ i = split_indx;
+ j = 0;
+ do {
+ if (i == newindx) {
+ rkey.mv_data = newkey->mv_data;
+ rkey.mv_size = newkey->mv_size;
+ if (IS_LEAF(mp)) {
+ rdata = newdata;
+ } else
+ pgno = newpgno;
+ flags = nflags;
+ /* Update index for the new key. */
+ mc->mc_ki[mc->mc_top] = j;
+ } else {
+ node = (MDB_node *)((char *)mp + copy->mp_ptrs[i]);
+ rkey.mv_data = NODEKEY(node);
+ rkey.mv_size = node->mn_ksize;
+ if (IS_LEAF(mp)) {
+ xdata.mv_data = NODEDATA(node);
+ xdata.mv_size = NODEDSZ(node);
+ rdata = &xdata;
+ } else
+ pgno = NODEPGNO(node);
+ flags = node->mn_flags;
+ }
- /* grab a page to hold a temporary copy */
- copy = mdb_page_malloc(mc->mc_txn, 1);
- if (copy == NULL)
- return ENOMEM;
+ if (!IS_LEAF(mp) && j == 0) {
+ /* First branch index doesn't need key data. */
+ rkey.mv_size = 0;
+ }
- copy->mp_pgno = mp->mp_pgno;
- copy->mp_flags = mp->mp_flags;
- copy->mp_lower = PAGEHDRSZ;
- copy->mp_upper = mc->mc_txn->mt_env->me_psize;
- mc->mc_pg[mc->mc_top] = copy;
- for (i = j = 0; i <= nkeys; j++) {
- if (i == split_indx) {
- /* Insert in right sibling. */
- /* Reset insert index for right sibling. */
- if (i != newindx || (newpos ^ ins_new)) {
+ rc = mdb_node_add(mc, j, &rkey, rdata, pgno, flags);
+ if (rc) {
+ /* return tmp page to freelist */
+ mdb_page_free(env, copy);
+ return rc;
+ }
+ if (i == nkeys) {
+ i = 0;
j = 0;
- mc->mc_pg[mc->mc_top] = rp;
+ mc->mc_pg[mc->mc_top] = copy;
+ } else {
+ i++;
+ j++;
+ }
+ } while (i != split_indx);
+
+ nkeys = NUMKEYS(copy);
+ for (i=0; i<nkeys; i++)
+ mp->mp_ptrs[i] = copy->mp_ptrs[i];
+ mp->mp_lower = copy->mp_lower;
+ mp->mp_upper = copy->mp_upper;
+ memcpy(NODEPTR(mp, nkeys-1), NODEPTR(copy, nkeys-1),
+ env->me_psize - copy->mp_upper);
+
+ /* reset back to original page */
+ if (newindx < split_indx) {
+ mc->mc_pg[mc->mc_top] = mp;
+ if (nflags & MDB_RESERVE) {
+ node = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
+ if (!(node->mn_flags & F_BIGDATA))
+ newdata->mv_data = NODEDATA(node);
}
- }
-
- if (i == newindx && !ins_new) {
- /* Insert the original entry that caused the split. */
- rkey.mv_data = newkey->mv_data;
- rkey.mv_size = newkey->mv_size;
- if (IS_LEAF(mp)) {
- rdata = newdata;
- } else
- pgno = newpgno;
- flags = nflags;
-
- ins_new = 1;
-
- /* Update index for the new key. */
- mc->mc_ki[mc->mc_top] = j;
- } else if (i == nkeys) {
- break;
} else {
- node = NODEPTR(mp, i);
- rkey.mv_data = NODEKEY(node);
- rkey.mv_size = node->mn_ksize;
- if (IS_LEAF(mp)) {
- xdata.mv_data = NODEDATA(node);
- xdata.mv_size = NODEDSZ(node);
- rdata = &xdata;
- } else
- pgno = NODEPGNO(node);
- flags = node->mn_flags;
-
- i++;
- }
-
- if (!IS_LEAF(mp) && j == 0) {
- /* First branch index doesn't need key data. */
- rkey.mv_size = 0;
- }
-
- rc = mdb_node_add(mc, j, &rkey, rdata, pgno, flags);
- if (rc) break;
- }
-
- nkeys = NUMKEYS(copy);
- for (i=0; i<nkeys; i++)
- mp->mp_ptrs[i] = copy->mp_ptrs[i];
- mp->mp_lower = copy->mp_lower;
- mp->mp_upper = copy->mp_upper;
- memcpy(NODEPTR(mp, nkeys-1), NODEPTR(copy, nkeys-1),
- mc->mc_txn->mt_env->me_psize - copy->mp_upper);
-
- /* reset back to original page */
- if (newindx < split_indx || (!newpos && newindx == split_indx)) {
- mc->mc_pg[mc->mc_top] = mp;
- if (nflags & MDB_RESERVE) {
- node = NODEPTR(mp, mc->mc_ki[mc->mc_top]);
- if (!(node->mn_flags & F_BIGDATA))
- newdata->mv_data = NODEDATA(node);
- }
- } else {
- mc->mc_ki[ptop]++;
- /* Make sure mc_ki is still valid.
- */
- if (mn.mc_pg[ptop] != mc->mc_pg[ptop] &&
- mc->mc_ki[ptop] >= NUMKEYS(mc->mc_pg[ptop])) {
- for (i=0; i<ptop; i++) {
- mc->mc_pg[i] = mn.mc_pg[i];
- mc->mc_ki[i] = mn.mc_ki[i];
+ mc->mc_pg[mc->mc_top] = rp;
+ mc->mc_ki[ptop]++;
+ /* Make sure mc_ki is still valid.
+ */
+ if (mn.mc_pg[ptop] != mc->mc_pg[ptop] &&
+ mc->mc_ki[ptop] >= NUMKEYS(mc->mc_pg[ptop])) {
+ for (i=0; i<ptop; i++) {
+ mc->mc_pg[i] = mn.mc_pg[i];
+ mc->mc_ki[i] = mn.mc_ki[i];
+ }
+ mc->mc_pg[ptop] = mn.mc_pg[ptop];
+ mc->mc_ki[ptop] = mn.mc_ki[ptop] - 1;
}
- mc->mc_pg[ptop] = mn.mc_pg[ptop];
- mc->mc_ki[ptop] = mn.mc_ki[ptop] - 1;
}
+ /* return tmp page to freelist */
+ mdb_page_free(env, copy);
}
- /* return tmp page to freelist */
- mdb_page_free(mc->mc_txn->mt_env, copy);
-done:
{
/* Adjust other cursors pointing to mp */
MDB_cursor *m2, *m3;
}
}
}
+ DPRINTF(("mp left: %d, rp left: %d", SIZELEFT(mp), SIZELEFT(rp)));
return rc;
}
return MDB_SUCCESS;
}
+int
+mdb_env_get_fd(MDB_env *env, mdb_filehandle_t *arg)
+{
+ if (!env || !arg)
+ return EINVAL;
+
+ *arg = env->me_fd;
+ return MDB_SUCCESS;
+}
+
/** Common code for #mdb_stat() and #mdb_env_stat().
* @param[in] env the environment to operate in.
* @param[in] db the #MDB_db record containing the stats to return.
return -1;
}
}
-
+
if( val > 0 ) {
++cursor;
}
projects / openldap / blobdiff