diff --git a/libraries/liblmdb/CHANGES b/libraries/liblmdb/CHANGES index dcc7508b7a..9873ee32cb 100644 --- a/libraries/liblmdb/CHANGES +++ b/libraries/liblmdb/CHANGES @@ -1,10 +1,12 @@ 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behavior (ITS#8722) + +LMDB 0.9.21 Release (2017/06/01) Fix xcursor after cursor_del (ITS#8622) LMDB 0.9.20 (Withdrawn) diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index e9d385c8ae..e31867de82 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -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)));