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Fix subcursor initialization

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This commit is contained in:
Howard Chu 2011-10-06 16:11:25 -07:00
parent 934a19553c
commit 19e4df476d
1 changed files with 10 additions and 6 deletions
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16
libraries/libmdb/mdb.c
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@ -3349,7 +3349,7 @@ mdb_cursor_next(MDB_cursor *mc, MDB_val *key, MDB_val *data, MDB_cursor_op op)
return rc;
}
} else {
mc->mc_xcursor->mx_cursor.mc_flags = 0;
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
if (op == MDB_NEXT_DUP)
return MDB_NOTFOUND;
}
@ -3419,7 +3419,7 @@ mdb_cursor_prev(MDB_cursor *mc, MDB_val *key, MDB_val *data, MDB_cursor_op op)
if (op != MDB_PREV || rc == MDB_SUCCESS)
return rc;
} else {
mc->mc_xcursor->mx_cursor.mc_flags = 0;
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
if (op == MDB_PREV_DUP)
return MDB_NOTFOUND;
}
@ -3623,7 +3623,7 @@ set1:
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
@ -3671,7 +3671,7 @@ mdb_cursor_first(MDB_cursor *mc, MDB_val *key, MDB_val *data)
return rc;
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
@ -3718,7 +3718,7 @@ mdb_cursor_last(MDB_cursor *mc, MDB_val *key, MDB_val *data)
return rc;
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
mc->mc_xcursor->mx_cursor.mc_flags &= ~C_INITIALIZED;
if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
@ -3918,7 +3918,7 @@ mdb_cursor_put(MDB_cursor *mc, MDB_val *key, MDB_val *data,
int exact = 0;
MDB_val d2;
rc = mdb_cursor_set(mc, key, &d2, MDB_SET, &exact);
if (flags == MDB_NOOVERWRITE && rc == 0) {
if ((flags & MDB_NOOVERWRITE) && rc == 0) {
DPRINTF("duplicate key [%s]", DKEY(key));
*data = d2;
return MDB_KEYEXIST;
@ -4571,6 +4571,8 @@ mdb_xcursor_init0(MDB_cursor *mc)
mx->mx_cursor.mc_dbx = &mx->mx_dbx;
mx->mx_cursor.mc_dbi = mc->mc_dbi+1;
mx->mx_cursor.mc_dbflag = &mx->mx_dbflag;
mx->mx_cursor.mc_snum = 0;
mx->mx_cursor.mc_flags = C_SUB;
mx->mx_dbx.md_cmp = mc->mc_dbx->md_dcmp;
mx->mx_dbx.md_dcmp = NULL;
mx->mx_dbx.md_rel = mc->mc_dbx->md_rel;
@ -5548,6 +5550,8 @@ done:
m3 = &m2->mc_xcursor->mx_cursor;
else
m3 = m2;
if (!(m3->mc_flags & C_INITIALIZED))
continue;
if (new_root) {
/* root split */
for (i=m3->mc_top; i>0; i--) {