mirror of
https://github.com/SChernykh/p2pool.git
synced 2025-01-10 20:54:34 +00:00
152 lines
4.4 KiB
C++
152 lines
4.4 KiB
C++
/*
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* This file is part of the Monero P2Pool <https://github.com/SChernykh/p2pool>
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* Copyright (c) 2021 SChernykh <https://github.com/SChernykh>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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namespace p2pool {
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template<typename T> struct not_implemented { enum { value = 0 }; };
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struct nocopy_nomove
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{
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nocopy_nomove() = default;
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nocopy_nomove(const nocopy_nomove&) = delete;
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nocopy_nomove(nocopy_nomove&&) = delete;
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nocopy_nomove& operator=(const nocopy_nomove&) = delete;
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nocopy_nomove& operator=(nocopy_nomove&&) = delete;
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};
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template<typename T>
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struct ScopeGuard
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{
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explicit FORCEINLINE ScopeGuard(T&& handler) : m_handler(std::move(handler)) {}
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FORCEINLINE ~ScopeGuard() { m_handler(); }
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T m_handler;
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// Disable copying/moving of ScopeGuard objects
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// We can't declare copy constructor as explicitly deleted because of copy elision semantics
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// Just leave it without definition and it'll fail when linking if someone tries to copy a ScopeGuard object
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ScopeGuard(const ScopeGuard&);
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private:
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ScopeGuard& operator=(const ScopeGuard&) = delete;
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ScopeGuard& operator=(ScopeGuard&&) = delete;
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};
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template<typename T> FORCEINLINE ScopeGuard<T> on_scope_leave(T&& handler) { return ScopeGuard<T>(std::move(handler)); }
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#define ON_SCOPE_LEAVE(x) auto CONCAT(scope_guard_, __LINE__) = on_scope_leave(x);
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struct MinerCallbackHandler
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{
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virtual ~MinerCallbackHandler() = 0;
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virtual void handle_tx(TxMempoolData& tx) = 0;
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virtual void handle_miner_data(MinerData& data) = 0;
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virtual void handle_chain_main(ChainMain& data, const char* extra) = 0;
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};
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template<typename T>
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static FORCEINLINE bool from_hex(char c, T& out_value) {
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if ('0' <= c && c <= '9') { out_value = static_cast<T>(c - '0'); return true; }
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if ('a' <= c && c <= 'f') { out_value = static_cast<T>((c - 'a') + 10); return true; }
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if ('A' <= c && c <= 'F') { out_value = static_cast<T>((c - 'A') + 10); return true; }
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return false;
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}
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template<typename T, bool is_signed> struct abs_helper {};
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template<typename T> struct abs_helper<T, false> { static FORCEINLINE T value(T x) { return x; } };
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template<typename T> struct abs_helper<T, true> { static FORCEINLINE T value(T x) { return (x >= 0) ? x : -x; } };
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template<typename T> FORCEINLINE T abs(T x) { return abs_helper<T, std::is_signed<T>::value>::value(x); }
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template<typename T, typename U>
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FORCEINLINE void writeVarint(T value, U&& callback)
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{
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while (value >= 0x80) {
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callback(static_cast<uint8_t>((value & 0x7F) | 0x80));
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value >>= 7;
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}
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callback(static_cast<uint8_t>(value));
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}
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template<typename T>
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FORCEINLINE void writeVarint(T value, std::vector<uint8_t>& out)
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{
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writeVarint(value, [&out](uint8_t b) { out.emplace_back(b); });
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}
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template<typename T, size_t N> FORCEINLINE constexpr size_t array_size(T(&)[N]) { return N; }
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[[noreturn]] void panic();
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void make_thread_background();
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class BackgroundJobTracker : public nocopy_nomove
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{
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public:
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BackgroundJobTracker();
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~BackgroundJobTracker();
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void start(const char* name);
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void stop(const char* name);
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void wait();
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void print_status();
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private:
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struct Impl;
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Impl* m_impl;
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};
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extern BackgroundJobTracker bkg_jobs_tracker;
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extern thread_local bool is_main_thread;
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bool resolve_host(std::string& host, bool& is_v6);
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} // namespace p2pool
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namespace std {
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template<>
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struct hash<p2pool::hash>
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{
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FORCEINLINE size_t operator()(const p2pool::hash& value) const
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{
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uint64_t result = 0xcbf29ce484222325ull;
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for (size_t i = 0; i < p2pool::HASH_SIZE; ++i) {
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result = (result ^ value.h[i]) * 0x100000001b3ull;
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}
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return static_cast<size_t>(result);
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}
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};
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template<size_t N>
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struct hash<std::array<uint8_t, N>>
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{
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FORCEINLINE size_t operator()(const std::array<uint8_t, N>& value) const
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{
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uint64_t result = 0xcbf29ce484222325ull;
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for (size_t i = 0; i < N; ++i) {
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result = (result ^ value[i]) * 0x100000001b3ull;
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}
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return static_cast<size_t>(result);
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}
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};
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} // namespace std
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