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// Copyright (c) 2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <node/chainstatemanager_args.h>
#include <arith_uint256.h>
#include <common/args.h>
#include <common/system.h>
#include <logging.h>
#include <node/coins_view_args.h>
#include <node/database_args.h>
#include <tinyformat.h>
#include <uint256.h>
#include <util/result.h>
#include <util/strencodings.h>
#include <util/translation.h>
#include <validation.h>
#include <algorithm>
#include <chrono>
#include <string>
namespace node {
util::Result<void> ApplyArgsManOptions(const ArgsManager& args, ChainstateManager::Options& opts)
{
if (auto value{args.GetIntArg("-checkblockindex")}) {
// Interpret bare -checkblockindex argument as 1 instead of 0.
opts.check_block_index = args.GetArg("-checkblockindex")->empty() ? 1 : *value;
}
if (auto value{args.GetBoolArg("-checkpoints")}) opts.checkpoints_enabled = *value;
if (auto value{args.GetArg("-minimumchainwork")}) {
if (!IsHexNumber(*value)) {
return util::Error{strprintf(Untranslated("Invalid non-hex (%s) minimum chain work value specified"), *value)};
}
opts.minimum_chain_work = UintToArith256(uint256S(*value));
}
if (auto value{args.GetArg("-assumevalid")}) opts.assumed_valid_block = uint256S(*value);
if (auto value{args.GetIntArg("-maxtipage")}) opts.max_tip_age = std::chrono::seconds{*value};
ReadDatabaseArgs(args, opts.block_tree_db);
ReadDatabaseArgs(args, opts.coins_db);
ReadCoinsViewArgs(args, opts.coins_view);
int script_threads = args.GetIntArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
if (script_threads <= 0) {
// -par=0 means autodetect (number of cores - 1 script threads)
// -par=-n means "leave n cores free" (number of cores - n - 1 script threads)
script_threads += GetNumCores();
}
// Subtract 1 because the main thread counts towards the par threads.
opts.worker_threads_num = std::clamp(script_threads - 1, 0, MAX_SCRIPTCHECK_THREADS);
LogPrintf("Script verification uses %d additional threads\n", opts.worker_threads_num);
return {};
}
} // namespace node
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