blob: 0af0bcabea250f81e45af78f55915fb5af75d392 [file] [log] [blame]
// Copyright 2021 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
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// 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 <cstring>
#include "pw_assert/check.h"
#include "pw_bloat/bloat_this_binary.h"
#include "pw_blob_store/blob_store.h"
#include "pw_kvs/flash_test_partition.h"
#include "pw_kvs/key_value_store.h"
#include "pw_log/log.h"
#include "pw_sync/borrow.h"
#include "pw_sync/virtual_basic_lockable.h"
using pw::blob_store::BlobStore;
char working_buffer[256];
volatile bool is_set;
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 = 0x22d3f8a0,
.checksum = nullptr};
volatile size_t kvs_entry_count;
pw::kvs::KeyValueStoreBuffer<kKvsMaxEntries, kMaxSectorCount> test_kvs(
&pw::kvs::FlashTestPartition(), kvs_format);
pw::sync::Borrowable<pw::kvs::KeyValueStore> borrowable_kvs(
test_kvs, pw::sync::NoOpLock::Instance());
int volatile* unoptimizable;
int main() {
pw::bloat::BloatThisBinary();
// Start of base **********************
// Ensure we are paying the cost for log and assert.
PW_CHECK_INT_GE(*unoptimizable, 0, "Ensure this CHECK logic stays");
PW_LOG_INFO("We care about optimizing: %d", *unoptimizable);
void* result =
std::memset((void*)working_buffer, 0x55, sizeof(working_buffer));
is_set = (result != nullptr);
{
pw::sync::BorrowedPointer<pw::kvs::KeyValueStore> kvs =
borrowable_kvs.acquire();
kvs->Init().IgnoreError();
unsigned kvs_value = 42;
kvs->Put("example_key", kvs_value).IgnoreError();
kvs_entry_count = kvs->size();
unsigned read_value = 0;
kvs->Get("example_key", &read_value).IgnoreError();
kvs->Delete("example_key").IgnoreError();
}
auto val = pw::kvs::FlashTestPartition().PartitionAddressToMcuAddress(0);
PW_LOG_INFO("Use the variable. %u", unsigned(*val));
std::array<std::byte, 32> blob_source_buffer;
pw::ConstByteSpan write_data = pw::span(blob_source_buffer);
char name[16] = "BLOB";
std::array<std::byte, 32> read_buffer;
pw::ByteSpan read_span = read_buffer;
PW_LOG_INFO("Do something so variables are used. %u, %c, %u",
unsigned(write_data.size()),
name[0],
unsigned(read_span.size()));
// End of base **********************
// Start of deferred blob **********************
constexpr size_t kBufferSize = 1;
pw::blob_store::BlobStoreBuffer<kBufferSize> blob(
name,
pw::kvs::FlashTestPartition(),
nullptr,
borrowable_kvs,
kBufferSize);
blob.Init().IgnoreError();
// Use writer.
constexpr size_t kMetadataBufferSize =
BlobStore::BlobWriter::RequiredMetadataBufferSize(0);
std::array<std::byte, kMetadataBufferSize> metadata_buffer;
pw::blob_store::BlobStore::DeferredWriter writer(blob, metadata_buffer);
writer.Open().IgnoreError();
writer.Write(write_data).IgnoreError();
writer.Flush().IgnoreError();
writer.Close().IgnoreError();
// Use reader.
pw::blob_store::BlobStore::BlobReader reader(blob);
reader.Open().IgnoreError();
pw::Result<pw::ConstByteSpan> get_result = reader.GetMemoryMappedBlob();
PW_LOG_INFO("%d", get_result.ok());
auto reader_result = reader.Read(read_span);
reader.Close().IgnoreError();
PW_LOG_INFO("%d", reader_result.ok());
// End of deferred blob **********************
return 0;
}