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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2000-2004
* Sleepycat Software. All rights reserved.
*
* $Id: TestTruncate.cpp,v 1.7 2004/01/28 03:36:34 bostic Exp $
*/
/*
* Do some regression tests for constructors.
* Run normally (without arguments) it is a simple regression test.
* Run with a numeric argument, it repeats the regression a number
* of times, to try to determine if there are memory leaks.
*/
#include <db_cxx.h>
#include <iostream.h>
int main(int argc, char *argv[])
{
try {
Db *db = new Db(NULL, 0);
db->open(NULL, "my.db", NULL, DB_BTREE, DB_CREATE, 0644);
// populate our massive database.
// all our strings include null for convenience.
// Note we have to cast for idiomatic
// usage, since newer gcc requires it.
Dbt *keydbt = new Dbt((char*)"key", 4);
Dbt *datadbt = new Dbt((char*)"data", 5);
db->put(NULL, keydbt, datadbt, 0);
// Now, retrieve. We could use keydbt over again,
// but that wouldn't be typical in an application.
Dbt *goodkeydbt = new Dbt((char*)"key", 4);
Dbt *badkeydbt = new Dbt((char*)"badkey", 7);
Dbt *resultdbt = new Dbt();
resultdbt->set_flags(DB_DBT_MALLOC);
int ret;
if ((ret = db->get(NULL, goodkeydbt, resultdbt, 0)) != 0) {
cout << "get: " << DbEnv::strerror(ret) << "\n";
}
else {
char *result = (char *)resultdbt->get_data();
cout << "got data: " << result << "\n";
}
if ((ret = db->get(NULL, badkeydbt, resultdbt, 0)) != 0) {
// We expect this...
cout << "get using bad key: "
<< DbEnv::strerror(ret) << "\n";
}
else {
char *result = (char *)resultdbt->get_data();
cout << "*** got data using bad key!!: "
<< result << "\n";
}
// Now, truncate and make sure that it's really gone.
cout << "truncating data...\n";
u_int32_t nrecords;
db->truncate(NULL, &nrecords, 0);
cout << "truncate returns " << nrecords << "\n";
if ((ret = db->get(NULL, goodkeydbt, resultdbt, 0)) != 0) {
// We expect this...
cout << "after truncate get: "
<< DbEnv::strerror(ret) << "\n";
}
else {
char *result = (char *)resultdbt->get_data();
cout << "got data: " << result << "\n";
}
db->close(0);
cout << "finished test\n";
}
catch (DbException &dbe) {
cerr << "Db Exception: " << dbe.what();
}
return 0;
}
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