mirror of
https://github.com/ceph/ceph
synced 2026-08-01 22:45:39 +00:00
78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab ft=cpp
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2026 International Business Machines Corp. (IBM)
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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* Whee! A mini-demo for libfdb!
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*
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* This shows how to take a user-defined data stucture and both store and
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* retrieve it in FoundationDB.
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*
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*/
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#include "rgw/fdb/interface.h"
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#include <print>
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#include <vector>
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#include <string>
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#include <cstdio>
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namespace lfdb = ceph::libfdb;
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using namespace std;
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struct person
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{
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string name;
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int year_born = 2000;
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vector<string> titles;
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};
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static const vector<person> nifty_people {
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{
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.name = "Albrecht Duerer",
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.year_born = 1471,
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.titles = { "Painter", "Printmaker", "Northern Renaissance artist" },
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},
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{
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.name = "Maria Theresa",
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.year_born = 1717,
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.titles = { "Habsburg ruler", "Archduchess of Austria", "Queen of Hungary and Bohemia" },
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}
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};
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int main()
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try
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{
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auto dbh = lfdb::create_database();
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lfdb::set(dbh, "example/people", nifty_people);
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vector<person> people;
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if(lfdb::get(dbh, "example/people", people)) {
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println("read {} people, some of them are likely nifty", people.size());
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}
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}
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catch(const lfdb::libfdb_exception& e) {
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println(stderr, "libfdb exception: {}", e.what());
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return 1;
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}
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catch(const exception& e) {
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println(stderr, "exception: {}", e.what());
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return 1;
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}
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catch(...) {
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println(stderr, "Well, now we're in a real jam, huh?");
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return 1;
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}
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