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diff --git a/storage/tokudb/PerconaFT/src/tests/test938c.cc b/storage/tokudb/PerconaFT/src/tests/test938c.cc
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+/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
+#ident "$Id$"
+/*======
+This file is part of PerconaFT.
+
+
+Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
+
+ PerconaFT is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License, version 2,
+ as published by the Free Software Foundation.
+
+ PerconaFT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
+
+----------------------------------------
+
+ PerconaFT is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License, version 3,
+ as published by the Free Software Foundation.
+
+ PerconaFT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
+======= */
+
+#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
+
+#include "test.h"
+#include <db.h>
+#include <sys/stat.h>
+
+unsigned char N=5;
+
+DB_ENV *env;
+DB *db;
+
+static void
+run (void) {
+ int r;
+ DB_TXN *txn, *txn2;
+ char v101=101, v102=102, v1=1, v2=1;
+ // Add (1,102) to the tree
+ // In one txn
+ // add (1,101) to the tree
+ // In another concurrent txn
+ // look up (1,102) and do DB_NEXT
+ // That should be fine in PerconaFT.
+ // It fails before #938 is fixed.
+ // It also fails for BDB for other reasons (page-level locking vs. row-level locking)
+ {
+ r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+ char kk[2] = {v2, v102};
+ DBT k,v;
+ r=db->put(db, txn, dbt_init(&k, &kk, 2), dbt_init(&v, &v102, 1), 0); CKERR(r);
+
+ r=txn->commit(txn, 0); CKERR(r);
+ }
+ {
+ r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+ r=env->txn_begin(env, 0, &txn2, 0); CKERR(r);
+
+ DBT k,v;
+ {
+ char kk[2] = {v1, v101};
+ r=db->put(db, txn, dbt_init(&k, &kk, 2), dbt_init(&v, &v101, 1), 0); CKERR(r);
+ }
+
+ DBC *c2;
+ r=db->cursor(db, txn2, &c2, 0); CKERR(r);
+
+ {
+ char kk[2] = {v2, v102};
+ r=c2->c_get(c2, dbt_init(&k, &kk, 2), dbt_init(&v, &v102, 1), DB_SET); CKERR(r);
+ }
+ r=c2->c_get(c2, dbt_init_malloc(&k), dbt_init_malloc(&v), DB_NEXT); assert(r==DB_NOTFOUND);
+
+ r=c2->c_close(c2);
+ r=txn->commit(txn, 0); CKERR(r);
+ r=txn2->commit(txn2, 0); CKERR(r);
+ }
+}
+
+int
+test_main(int argc, char *const argv[]) {
+ parse_args(argc, argv);
+
+ int r;
+ toku_os_recursive_delete(TOKU_TEST_FILENAME);
+ toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO);
+
+ DB_TXN *txn;
+ {
+ r = db_env_create(&env, 0); CKERR(r);
+ r = env->set_redzone(env, 0); CKERR(r);
+ r=env->open(env, TOKU_TEST_FILENAME, DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_MPOOL|DB_INIT_TXN|DB_CREATE|DB_PRIVATE, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
+ env->set_errfile(env, stderr);
+ r=env->txn_begin(env, 0, &txn, 0); CKERR(r);
+ r=db_create(&db, env, 0); CKERR(r);
+ r=db->open(db, txn, "foo.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
+ r=txn->commit(txn, 0); CKERR(r);
+ }
+ run();
+ {
+ r=db->close(db, 0); CKERR(r);
+ r=env->close(env, 0); CKERR(r);
+ }
+
+ return 0;
+}