mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-12-05 02:05:10 +01:00
2a92702baf
This avoids having to rely on implicit casts when passing them to the various functions allocating the caches. This also ensures that if the requested amount of db_cache does not fit in a size_t, it is clamped to the maximum value of a size_t. Also take this opportunity to make the total amounts of cache in the chainstate manager a size_t too.
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
// Copyright (c) 2024-present 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_KERNEL_CACHES_H
|
|
#define BITCOIN_KERNEL_CACHES_H
|
|
|
|
#include <util/byte_units.h>
|
|
|
|
#include <algorithm>
|
|
|
|
//! Suggested default amount of cache reserved for the kernel (bytes)
|
|
static constexpr size_t DEFAULT_KERNEL_CACHE{450_MiB};
|
|
//! Max memory allocated to block tree DB specific cache (bytes)
|
|
static constexpr size_t MAX_BLOCK_DB_CACHE{2_MiB};
|
|
//! Max memory allocated to coin DB specific cache (bytes)
|
|
static constexpr size_t MAX_COINS_DB_CACHE{8_MiB};
|
|
|
|
namespace kernel {
|
|
struct CacheSizes {
|
|
size_t block_tree_db;
|
|
size_t coins_db;
|
|
size_t coins;
|
|
|
|
CacheSizes(size_t total_cache)
|
|
{
|
|
block_tree_db = std::min(total_cache / 8, MAX_BLOCK_DB_CACHE);
|
|
total_cache -= block_tree_db;
|
|
coins_db = std::min(total_cache / 2, MAX_COINS_DB_CACHE);
|
|
total_cache -= coins_db;
|
|
coins = total_cache; // the rest goes to the coins cache
|
|
}
|
|
};
|
|
} // namespace kernel
|
|
|
|
#endif // BITCOIN_KERNEL_CACHES_H
|