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https://github.com/jwinterm/xmr-stak.git
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75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
#pragma once
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#include <thread>
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#include <vector>
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#include <atomic>
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#include <mutex>
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#include "../../crypto/cryptonight.h"
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#include "../miner_work.h"
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#include "../IBackend.hpp"
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#include "../GlobalStates.hpp"
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#include <iostream>
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namespace xmrstak
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{
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namespace cpu
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{
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class minethd : public IBackend
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{
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public:
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static std::vector<IBackend*> thread_starter(uint32_t threadOffset, miner_work& pWork);
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static bool self_test();
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typedef void (*cn_hash_fun)(const void*, size_t, void*, cryptonight_ctx*);
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static cn_hash_fun func_selector(bool bHaveAes, bool bNoPrefetch);
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static void thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id);
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static cryptonight_ctx* minethd_alloc_ctx();
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private:
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typedef void (*cn_hash_fun_dbl)(const void*, size_t, void*, cryptonight_ctx* __restrict, cryptonight_ctx* __restrict);
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static cn_hash_fun_dbl func_dbl_selector(bool bHaveAes, bool bNoPrefetch);
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minethd(miner_work& pWork, size_t iNo, bool double_work, bool no_prefetch, int64_t affinity);
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// We use the top 10 bits of the nonce for thread and resume
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// This allows us to resume up to 128 threads 4 times before
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// we get nonce collisions
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// Bottom 22 bits allow for an hour of work at 1000 H/s
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inline uint32_t calc_start_nonce(uint32_t resume)
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{
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return reverseBits<uint32_t>(static_cast<uint32_t>(iThreadNo + GlobalStates::iThreadCount * resume));
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}
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// Limited version of the nonce calc above
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inline uint32_t calc_nicehash_nonce(uint32_t start, uint32_t resume)
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{
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return start | ( ( reverseBits<uint32_t>(static_cast<uint32_t>(iThreadNo + GlobalStates::iThreadCount * resume)) >> 4u ) );
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}
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void work_main();
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void double_work_main();
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void consume_work();
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uint64_t iJobNo;
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static miner_work oGlobalWork;
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miner_work oWork;
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void pin_thd_affinity();
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// Held by the creating context to prevent a race cond with oWorkThd = std::thread(...)
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std::mutex work_thd_mtx;
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std::thread oWorkThd;
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uint8_t iThreadNo;
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int64_t affinity;
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bool bQuit;
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bool bNoPrefetch;
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};
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} // namespace cpu
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} // namepsace xmrstak
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