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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-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.
#include <bitcoin-build-config.h> // IWYU pragma: keep
#include <common/system.h>
#include <logging.h>
#include <util/string.h>
#include <util/time.h>
#ifndef WIN32
#include <sys/stat.h>
#else
#include <compat/compat.h>
#include <codecvt>
#endif
#ifdef HAVE_MALLOPT_ARENA_MAX
#include <malloc.h>
#endif
#include <cstdlib>
#include <locale>
#include <stdexcept>
#include <string>
#include <thread>
using util::ReplaceAll;
// Application startup time (used for uptime calculation)
const int64_t nStartupTime = GetTime();
#ifndef WIN32
std::string ShellEscape(const std::string& arg)
{
std::string escaped = arg;
ReplaceAll(escaped, "'", "'\"'\"'");
return "'" + escaped + "'";
}
#endif
#if HAVE_SYSTEM
void runCommand(const std::string& strCommand)
{
if (strCommand.empty()) return;
#ifndef WIN32
int nErr = ::system(strCommand.c_str());
#else
int nErr = ::_wsystem(std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,wchar_t>().from_bytes(strCommand).c_str());
#endif
if (nErr)
LogPrintf("runCommand error: system(%s) returned %d\n", strCommand, nErr);
}
#endif
void SetupEnvironment()
{
#ifdef HAVE_MALLOPT_ARENA_MAX
// glibc-specific: On 32-bit systems set the number of arenas to 1.
// By default, since glibc 2.10, the C library will create up to two heap
// arenas per core. This is known to cause excessive virtual address space
// usage in our usage. Work around it by setting the maximum number of
// arenas to 1.
if (sizeof(void*) == 4) {
mallopt(M_ARENA_MAX, 1);
}
#endif
// On most POSIX systems (e.g. Linux, but not BSD) the environment's locale
// may be invalid, in which case the "C.UTF-8" locale is used as fallback.
#if !defined(WIN32) && !defined(MAC_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__)
try {
std::locale(""); // Raises a runtime error if current locale is invalid
} catch (const std::runtime_error&) {
setenv("LC_ALL", "C.UTF-8", 1);
}
#elif defined(WIN32)
// Set the default input/output charset is utf-8
SetConsoleCP(CP_UTF8);
SetConsoleOutputCP(CP_UTF8);
#endif
#ifndef WIN32
constexpr mode_t private_umask = 0077;
umask(private_umask);
#endif
}
bool SetupNetworking()
{
#ifdef WIN32
// Initialize Windows Sockets
WSADATA wsadata;
int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
if (ret != NO_ERROR || LOBYTE(wsadata.wVersion ) != 2 || HIBYTE(wsadata.wVersion) != 2)
return false;
#endif
return true;
}
int GetNumCores()
{
return std::thread::hardware_concurrency();
}
// Obtain the application startup time (used for uptime calculation)
int64_t GetStartupTime()
{
return nStartupTime;
}
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