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RandomX/src/Cache.hpp

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1.6 KiB

/*
Copyright (c) 2018 tevador
This file is part of RandomX.
RandomX is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
RandomX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RandomX. If not, see<http://www.gnu.org/licenses/>.
*/
#pragma once
#include <cstdint>
#include <new>
#include "common.hpp"
#include "dataset.hpp"
#include "virtualMemory.hpp"
namespace RandomX {
class Cache {
public:
static void* alloc(bool largePages) {
if (largePages) {
return allocLargePagesMemory(sizeof(Cache));
}
else {
void* ptr = _mm_malloc(sizeof(Cache), sizeof(__m128i));
if (ptr == nullptr)
throw std::bad_alloc();
return ptr;
}
}
static void dealloc(Cache* cache, bool largePages) {
if (largePages) {
freePagedMemory(cache, sizeof(Cache));
}
else {
_mm_free(cache);
}
}
/*void* operator new(size_t size) {
void* ptr = _mm_malloc(size, sizeof(__m128i));
if (ptr == nullptr)
throw std::bad_alloc();
return ptr;
}
void operator delete(void* ptr) {
_mm_free(ptr);
}*/
void initialize(const void* seed, size_t seedSize);
const uint8_t* getCache() const {
return memory;
}
private:
uint8_t memory[CacheSize];
void argonFill(const void* seed, size_t seedSize);
};
}