Line data    Source code

       1             : // Copyright (c) 2022 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <node/validation_cache_args.h>
       6             : 
       7             : #include <kernel/validation_cache_sizes.h>
       8             : 
       9             : #include <common/args.h>
      10             : 
      11             : #include <algorithm>
      12             : #include <cstddef>
      13             : #include <cstdint>
      14             : #include <memory>
      15             : #include <optional>
      16             : 
      17             : using kernel::ValidationCacheSizes;
      18             : 
      19             : namespace node {
      20           1 : void ApplyArgsManOptions(const ArgsManager& argsman, ValidationCacheSizes& cache_sizes)
      21             : {
      22           1 :     if (auto max_size = argsman.GetIntArg("-maxsigcachesize")) {
      23             :         // 1. When supplied with a max_size of 0, both InitSignatureCache and
      24             :         //    InitScriptExecutionCache create the minimum possible cache (2
      25             :         //    elements). Therefore, we can use 0 as a floor here.
      26             :         // 2. Multiply first, divide after to avoid integer truncation.
      27           0 :         size_t clamped_size_each = std::max<int64_t>(*max_size, 0) * (1 << 20) / 2;
      28           0 :         cache_sizes = {
      29           0 :             .signature_cache_bytes = clamped_size_each,
      30           0 :             .script_execution_cache_bytes = clamped_size_each,
      31             :         };
      32           0 :     }
      33           1 : }
      34             : } // namespace node