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148 lines
4.5 KiB
148 lines
4.5 KiB
// Copyright (c) 2014-2015, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <mutex>
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#include <system_error>
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#include <boost/filesystem.hpp>
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#include "crypto/crypto.h"
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#include "crypto/hash.h"
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#include "misc_language.h"
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#include "p2p/p2p_protocol_defs.h"
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/*! \brief Various Tools
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*
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*
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*
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*/
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namespace tools
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{
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/*! \brief Returns the default data directory.
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*
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* \details Windows < Vista: C:\\Documents and Settings\\Username\\Application Data\\CRYPTONOTE_NAME
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*
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* Windows >= Vista: C:\\Users\\Username\\AppData\\Roaming\\CRYPTONOTE_NAME
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*
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* Mac: ~/Library/Application Support/CRYPTONOTE_NAME
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*
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* Unix: ~/.CRYPTONOTE_NAME
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*/
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std::string get_default_data_dir();
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/*! \brief Returns the OS version string
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*
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* \details This is a wrapper around the primitives
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* get_windows_version_display_string() and
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* get_nix_version_display_string()
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*/
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std::string get_os_version_string();
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/*! \brief creates directories for a path
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*
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* wrapper around boost::filesyste::create_directories.
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* (ensure-directory-exists): greenspun's tenth rule in action!
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*/
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bool create_directories_if_necessary(const std::string& path);
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/*! \brief std::rename wrapper for nix and something strange for windows.
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*/
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std::error_code replace_file(const std::string& replacement_name, const std::string& replaced_name);
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inline crypto::hash get_proof_of_trust_hash(const nodetool::proof_of_trust& pot)
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{
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std::string s;
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s.append(reinterpret_cast<const char*>(&pot.peer_id), sizeof(pot.peer_id));
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s.append(reinterpret_cast<const char*>(&pot.time), sizeof(pot.time));
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return crypto::cn_fast_hash(s.data(), s.size());
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}
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/*! \brief Defines a signal handler for win32 and *nix
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*/
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class signal_handler
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{
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public:
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/*! \brief installs a signal handler */
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template<typename T>
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static bool install(T t)
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{
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#if defined(WIN32)
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bool r = TRUE == ::SetConsoleCtrlHandler(&win_handler, TRUE);
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if (r)
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{
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m_handler = t;
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}
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return r;
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#else
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/* Only blocks SIGINT and SIGTERM */
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signal(SIGINT, posix_handler);
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signal(SIGTERM, posix_handler);
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m_handler = t;
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return true;
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#endif
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}
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private:
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#if defined(WIN32)
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/*! \brief Handler for win */
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static BOOL WINAPI win_handler(DWORD type)
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{
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if (CTRL_C_EVENT == type || CTRL_BREAK_EVENT == type)
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{
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handle_signal();
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}
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else
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{
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LOG_PRINT_RED_L0("Got control signal " << type << ". Exiting without saving...");
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return FALSE;
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}
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return TRUE;
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}
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#else
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/*! \brief handler for NIX */
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static void posix_handler(int /*type*/)
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{
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handle_signal();
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}
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#endif
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/*! \brief calles m_handler */
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static void handle_signal()
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{
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static std::mutex m_mutex;
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std::unique_lock<std::mutex> lock(m_mutex);
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m_handler();
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}
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/*! \brief where the installed handler is stored */
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static std::function<void(void)> m_handler;
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};
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}
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