// Copyright (c) 2021 The Bitcoin Core developers

// Distributed under the MIT software license, see the accompanying

// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_NODE_CACHES_H

#define BITCOIN_NODE_CACHES_H

#include <kernel/caches.h>

#include <util/byte_units.h>

#include <cstddef>

class ArgsManager;

//! min. -dbcache (bytes)

static constexpr size_t MIN_DB_CACHE{4_MiB};

//! -dbcache default (bytes)

static constexpr size_t DEFAULT_DB_CACHE{DEFAULT_KERNEL_CACHE};

namespace node {

struct IndexCacheSizes {

    size_t tx_index{0};

    size_t filter_index{0};

};

struct CacheSizes {

    IndexCacheSizes index;

    kernel::CacheSizes kernel;

};

CacheSizes CalculateCacheSizes(const ArgsManager& args, size_t n_indexes = 0);

constexpr bool ShouldWarnOversizedDbCache(size_t dbcache, size_t total_ram) noexcept

{

    const size_t cap{(total_ram < 2048_MiB) ? DEFAULT_DB_CACHE : (total_ram / 100) * 75};

    return dbcache > cap;

}

void LogOversizedDbCache(const ArgsManager& args) noexcept;

} // namespace node

#endif // BITCOIN_NODE_CACHES_H