blob: 17d1d7cb3179bda140a41855bf0f26d5561126f6 [file] [log] [blame]
// Copyright 2020 The Pigweed Authors
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include "pw_board_led/led.h"
#include "pw_kvs/flash_test_partition.h"
#include "pw_kvs/key_value_store.h"
#include "pw_log/log.h"
#include "pw_spin_delay/delay.h"
constexpr size_t kMaxSectorCount = 64;
constexpr size_t kKvsMaxEntries = 32;
// For KVS magic value always use a random 32 bit integer rather than a human
// readable 4 bytes. See pw_kvs/format.h for more information.
static constexpr pw::kvs::EntryFormat kvs_format = {.magic = 0xd253a8a9,
.checksum = nullptr};
pw::kvs::KeyValueStoreBuffer<kKvsMaxEntries, kMaxSectorCount> kvs(
&pw::kvs::FlashTestPartition(), kvs_format);
int main() {
unsigned kvs_value = 42;
while (true) {
PW_LOG_INFO("Write KVS value of %u", kvs_value);
kvs.Put("example_key", kvs_value);
PW_LOG_INFO("KVS has %u keys", static_cast<unsigned>(kvs.size()));
unsigned read_value = 0;
kvs.Get("example_key", &read_value);
PW_LOG_INFO("Read KVS value of %u", read_value);
if (kvs_value > 100) {
kvs_value = 0;
return 0;