1// Copyright (c) 2009-2010 Satoshi Nakamoto
2// Copyright (c) 2009-present The Bitcoin Core developers
3// Distributed under the MIT software license, see the accompanying
4// file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6#ifndef BITCOIN_COMMON_SYSTEM_H
7#define BITCOIN_COMMON_SYSTEM_H
8
9#include <bitcoin-build-config.h> // IWYU pragma: keep
10
11#include <util/time.h>
12
13#include <cstdint>
14#include <optional>
15#include <string>
16
17/// Monotonic uptime (not affected by system time changes).
18SteadyClock::duration GetUptime();
19
20void SetupEnvironment();
21[[nodiscard]] bool SetupNetworking();
22#ifndef WIN32
23std::string ShellEscape(const std::string& arg);
24#endif
25#if HAVE_SYSTEM
26void runCommand(const std::string& strCommand);
27#endif
28
29/**
30 * Return the number of cores available on the current system.
31 * @note This does count virtual cores, such as those provided by HyperThreading.
32 */
33int GetNumCores();
34
35/**
36 * Return the total RAM available on the current system, if detectable.
37 */
38std::optional<uint64_t> TryGetTotalRam();
39
40#endif // BITCOIN_COMMON_SYSTEM_H
41