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101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 2000-2002
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* Sleepycat Software. All rights reserved.
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*
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* $Id: TestLogc.cpp,v 1.6 2002/01/23 14:26:41 bostic Exp $
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*/
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/*
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* A basic regression test for the Logc class.
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*/
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#include <db_cxx.h>
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#include <iostream.h>
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static void show_dbt(ostream &os, Dbt *dbt)
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{
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int i;
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int size = dbt->get_size();
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unsigned char *data = (unsigned char *)dbt->get_data();
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os << "size: " << size << " data: ";
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for (i=0; i<size && i<10; i++) {
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os << (int)data[i] << " ";
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}
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if (i<size)
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os << "...";
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}
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int main(int argc, char *argv[])
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{
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try {
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DbEnv *env = new DbEnv(0);
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env->open(".", DB_CREATE | DB_INIT_LOG | DB_INIT_MPOOL, 0);
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// Do some database activity to get something into the log.
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Db *db1 = new Db(env, 0);
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db1->open(NULL, "first.db", NULL, DB_BTREE, DB_CREATE, 0);
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Dbt *key = new Dbt((char *)"a", 1);
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Dbt *data = new Dbt((char *)"b", 1);
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db1->put(NULL, key, data, 0);
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key->set_data((char *)"c");
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data->set_data((char *)"d");
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db1->put(NULL, key, data, 0);
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db1->close(0);
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Db *db2 = new Db(env, 0);
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db2->open(NULL, "second.db", NULL, DB_BTREE, DB_CREATE, 0);
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key->set_data((char *)"w");
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data->set_data((char *)"x");
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db2->put(NULL, key, data, 0);
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key->set_data((char *)"y");
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data->set_data((char *)"z");
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db2->put(NULL, key, data, 0);
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db2->close(0);
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// Now get a log cursor and walk through.
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DbLogc *logc;
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env->log_cursor(&logc, 0);
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int ret = 0;
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DbLsn lsn;
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Dbt *dbt = new Dbt();
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u_int32_t flags = DB_FIRST;
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int count = 0;
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while ((ret = logc->get(&lsn, dbt, flags)) == 0) {
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// We ignore the contents of the log record,
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// it's not portable. Even the exact count
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// is may change when the underlying implementation
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// changes, we'll just make sure at the end we saw
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// 'enough'.
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//
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// cout << "logc.get: " << count;
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// show_dbt(cout, dbt);
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// cout << "\n";
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//
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count++;
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flags = DB_NEXT;
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}
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if (ret != DB_NOTFOUND) {
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cerr << "*** FAIL: logc.get returned: "
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<< DbEnv::strerror(ret) << "\n";
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}
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logc->close(0);
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// There has to be at *least* four log records,
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// since we did four separate database operations.
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//
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if (count < 4)
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cerr << "*** FAIL: not enough log records\n";
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cout << "TestLogc done.\n";
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}
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catch (DbException &dbe) {
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cerr << "*** FAIL: " << dbe.what() <<"\n";
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}
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return 0;
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}
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