Start trying to write a test for #1572 (make sure we can do 4 billion...

Start trying to write a test for #1572 (make sure we can do 4 billion transactions.  But the memory is getting out of control.  Refs #1572.

git-svn-id: file:///svn/toku/tokudb@10393 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/test1572.c

+/* -*- mode: C; c-basic-offset: 4 -*- */
+#ident "Copyright (c) 2007 Tokutek Inc.  All rights reserved."
+#include "test.h"
+
+/* Is it feasible to run 4 billion transactions in one test in the regression tests? */
+#include <db.h>
+#include <sys/stat.h>
+
+static void
+four_billion_subtransactions (void) {
+    DB_ENV *env;
+    DB *db;
+    DB_TXN *xparent;
+
+    system("rm -rf " ENVDIR);
+    toku_os_mkdir(ENVDIR, S_IRWXU+S_IRWXG+S_IRWXO);
+
+    int r;
+    r = db_env_create(&env, 0);                                           CKERR(r);
+
+    r = env->open(env, ENVDIR, DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_MPOOL|DB_INIT_TXN|DB_CREATE|DB_PRIVATE, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
+    r = db_create(&db, env, 0);                                           CKERR(r);
+
+    {
+	DB_TXN *txn;
+	r=env->txn_begin(env, 0, &txn, 0); assert(r==0);
+	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);    assert(r==0);
+    }
+
+    r=env->txn_begin(env, 0, &xparent, 0);  CKERR(r);
+    long long i;
+    //long long const fourbillion = 1ll << 32;
+    long long const fourbillion = 400000;
+    for (i=0; i < fourbillion + 100; i++) {
+	DB_TXN *xchild;
+	r=env->txn_begin(env, xparent, &xchild, 0); CKERR(r);
+	r=xchild->commit(xchild, 0); CKERR(r);
+	if (0==i%50000) sleep(1);
+	if (i%1000000==0) { printf("."); fflush(stdout); }
+
+    }
+    r=xparent->commit(xparent, 0); CKERR(r);
+
+    r=db->close(db, 0); CKERR(r);
+    r=env->close(env, 0); CKERR(r);
+}
+
+int
+test_main (int argc, const char *argv[])
+{
+    parse_args(argc, argv);
+    four_billion_subtransactions();
+    return 0;
+}
+