Commit 6f9a9ca8 authored by Quanah Gibson-Mount's avatar Quanah Gibson-Mount
Browse files

Merge remote-tracking branch 'origin/mdb.RE/0.9'

parents dc3b3be4 a351fe0b
LMDB 0.9 Change Log
LMDB 0.9.22 Engineering
LMDB 0.9.21 Release (2017/06/01)
Fix regression with new db from 0.9.19 (ITS#8760)
Fix liblmdb to build on Solaris (ITS#8612)
Fix delete behavior with DUPSORT DB (ITS#8622)
Fix mdb_cursor_get/mdb_cursor_del behavior (ITS#8722)
LMDB 0.9.21 Release (2017/06/01)
Fix xcursor after cursor_del (ITS#8622)
LMDB 0.9.20 (Withdrawn)
......
......@@ -1226,17 +1226,19 @@ typedef struct MDB_xcursor {
unsigned char mx_dbflag;
} MDB_xcursor;
/** Check if there is an inited xcursor, so #XCURSOR_REFRESH() is proper */
/** Check if there is an inited xcursor */
#define XCURSOR_INITED(mc) \
((mc)->mc_xcursor && ((mc)->mc_xcursor->mx_cursor.mc_flags & C_INITIALIZED))
/** Update sub-page pointer, if any, in \b mc->mc_xcursor. Needed
/** Update the xcursor's sub-page pointer, if any, in \b mc. Needed
* when the node which contains the sub-page may have moved. Called
* with \b mp = mc->mc_pg[mc->mc_top], \b ki = mc->mc_ki[mc->mc_top].
* with leaf page \b mp = mc->mc_pg[\b top].
*/
#define XCURSOR_REFRESH(mc, mp, ki) do { \
#define XCURSOR_REFRESH(mc, top, mp) do { \
MDB_page *xr_pg = (mp); \
MDB_node *xr_node = NODEPTR(xr_pg, ki); \
MDB_node *xr_node; \
if (!XCURSOR_INITED(mc) || (mc)->mc_ki[top] >= NUMKEYS(xr_pg)) break; \
xr_node = NODEPTR(xr_pg, (mc)->mc_ki[top]); \
if ((xr_node->mn_flags & (F_DUPDATA|F_SUBDATA)) == F_DUPDATA) \
(mc)->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(xr_node); \
} while (0)
......@@ -2489,8 +2491,8 @@ done:
if (m2 == mc) continue;
if (m2->mc_pg[mc->mc_top] == mp) {
m2->mc_pg[mc->mc_top] = np;
if (XCURSOR_INITED(m2) && IS_LEAF(np))
XCURSOR_REFRESH(m2, np, m2->mc_ki[mc->mc_top]);
if (IS_LEAF(np))
XCURSOR_REFRESH(m2, mc->mc_top, np);
}
}
}
......@@ -6426,6 +6428,11 @@ fetchm:
rc = MDB_INCOMPATIBLE;
break;
}
if (mc->mc_ki[mc->mc_top] >= NUMKEYS(mc->mc_pg[mc->mc_top])) {
mc->mc_ki[mc->mc_top] = NUMKEYS(mc->mc_pg[mc->mc_top]);
rc = MDB_NOTFOUND;
break;
}
{
MDB_node *leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
if (!F_ISSET(leaf->mn_flags, F_DUPDATA)) {
......@@ -6922,8 +6929,7 @@ new_sub:
if (m3->mc_ki[i] >= mc->mc_ki[i] && insert_key) {
m3->mc_ki[i]++;
}
if (XCURSOR_INITED(m3))
XCURSOR_REFRESH(m3, mp, m3->mc_ki[i]);
XCURSOR_REFRESH(m3, i, mp);
}
}
}
......@@ -6965,7 +6971,6 @@ put_sub:
MDB_xcursor *mx = mc->mc_xcursor;
unsigned i = mc->mc_top;
MDB_page *mp = mc->mc_pg[i];
int nkeys = NUMKEYS(mp);
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;
......@@ -6973,8 +6978,8 @@ put_sub:
if (m2->mc_pg[i] == mp) {
if (m2->mc_ki[i] == mc->mc_ki[i]) {
mdb_xcursor_init2(m2, mx, new_dupdata);
} else if (!insert_key && m2->mc_ki[i] < nkeys) {
XCURSOR_REFRESH(m2, mp, m2->mc_ki[i]);
} else if (!insert_key) {
XCURSOR_REFRESH(m2, i, mp);
}
}
}
......@@ -7079,12 +7084,7 @@ mdb_cursor_del(MDB_cursor *mc, unsigned int flags)
if (m2 == mc || m2->mc_snum < mc->mc_snum) continue;
if (!(m2->mc_flags & C_INITIALIZED)) continue;
if (m2->mc_pg[mc->mc_top] == mp) {
MDB_node *n2 = leaf;
if (m2->mc_ki[mc->mc_top] != mc->mc_ki[mc->mc_top]) {
n2 = NODEPTR(mp, m2->mc_ki[mc->mc_top]);
if (n2->mn_flags & F_SUBDATA) continue;
}
m2->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(n2);
XCURSOR_REFRESH(m2, mc->mc_top, mp);
}
}
}
......@@ -7930,8 +7930,8 @@ mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst, int fromleft)
m3->mc_ki[csrc->mc_top] = cdst->mc_ki[cdst->mc_top];
m3->mc_ki[csrc->mc_top-1]++;
}
if (XCURSOR_INITED(m3) && IS_LEAF(mps))
XCURSOR_REFRESH(m3, m3->mc_pg[csrc->mc_top], m3->mc_ki[csrc->mc_top]);
if (IS_LEAF(mps))
XCURSOR_REFRESH(m3, csrc->mc_top, m3->mc_pg[csrc->mc_top]);
}
} else
/* Adding on the right, bump others down */
......@@ -7952,8 +7952,8 @@ mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst, int fromleft)
} else {
m3->mc_ki[csrc->mc_top]--;
}
if (XCURSOR_INITED(m3) && IS_LEAF(mps))
XCURSOR_REFRESH(m3, m3->mc_pg[csrc->mc_top], m3->mc_ki[csrc->mc_top]);
if (IS_LEAF(mps))
XCURSOR_REFRESH(m3, csrc->mc_top, m3->mc_pg[csrc->mc_top]);
}
}
}
......@@ -8154,8 +8154,8 @@ mdb_page_merge(MDB_cursor *csrc, MDB_cursor *cdst)
m3->mc_ki[top-1] > csrc->mc_ki[top-1]) {
m3->mc_ki[top-1]--;
}
if (XCURSOR_INITED(m3) && IS_LEAF(psrc))
XCURSOR_REFRESH(m3, m3->mc_pg[top], m3->mc_ki[top]);
if (IS_LEAF(psrc))
XCURSOR_REFRESH(m3, top, m3->mc_pg[top]);
}
}
{
......@@ -8417,8 +8417,7 @@ mdb_cursor_del0(MDB_cursor *mc)
} else if (m3->mc_ki[mc->mc_top] > ki) {
m3->mc_ki[mc->mc_top]--;
}
if (XCURSOR_INITED(m3))
XCURSOR_REFRESH(m3, m3->mc_pg[mc->mc_top], m3->mc_ki[mc->mc_top]);
XCURSOR_REFRESH(m3, mc->mc_top, mp);
}
}
}
......@@ -8465,8 +8464,10 @@ mdb_cursor_del0(MDB_cursor *mc)
if (m3->mc_xcursor->mx_cursor.mc_flags & C_INITIALIZED) {
if (!(node->mn_flags & F_SUBDATA))
m3->mc_xcursor->mx_cursor.mc_pg[0] = NODEDATA(node);
} else
} else {
mdb_xcursor_init1(m3, node);
m3->mc_xcursor->mx_cursor.mc_flags |= C_DEL;
}
}
}
}
......@@ -8952,8 +8953,8 @@ mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno
m3->mc_ki[ptop] >= mc->mc_ki[ptop]) {
m3->mc_ki[ptop]++;
}
if (XCURSOR_INITED(m3) && IS_LEAF(mp))
XCURSOR_REFRESH(m3, m3->mc_pg[mc->mc_top], m3->mc_ki[mc->mc_top]);
if (IS_LEAF(mp))
XCURSOR_REFRESH(m3, mc->mc_top, m3->mc_pg[mc->mc_top]);
}
}
DPRINTF(("mp left: %d, rp left: %d", SIZELEFT(mp), SIZELEFT(rp)));
......
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