115 lines
3 KiB
C++
115 lines
3 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018 Lee Clagett <https://github.com/vtnerd>
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* Copyright 2018-2019 SChernykh <https://github.com/SChernykh>
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* Copyright 2018-2019 tevador <tevador@gmail.com>
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* Copyright 2016-2019 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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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#include "crypto/common/VirtualMemory.h"
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#include "backend/cpu/Cpu.h"
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#include "base/io/log/Log.h"
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#include "crypto/common/MemoryPool.h"
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#include "crypto/common/portable/mm_malloc.h"
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#include <cinttypes>
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#include <mutex>
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namespace xmrig {
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static IMemoryPool *pool = nullptr;
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static std::mutex mutex;
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} // namespace xmrig
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xmrig::VirtualMemory::VirtualMemory(size_t size, bool hugePages, bool usePool, uint32_t node, size_t alignSize) :
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m_size(align(size)),
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m_node(node)
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{
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if (usePool) {
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std::lock_guard<std::mutex> lock(mutex);
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if (hugePages && !pool->isHugePages(node) && allocateLargePagesMemory()) {
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return;
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}
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m_scratchpad = pool->get(m_size, node);
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if (m_scratchpad) {
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m_flags.set(FLAG_HUGEPAGES, pool->isHugePages(node));
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m_flags.set(FLAG_EXTERNAL, true);
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return;
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}
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}
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if (hugePages && allocateLargePagesMemory()) {
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return;
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}
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m_scratchpad = static_cast<uint8_t*>(_mm_malloc(m_size, alignSize));
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}
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xmrig::VirtualMemory::~VirtualMemory()
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{
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if (!m_scratchpad) {
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return;
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}
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if (m_flags.test(FLAG_EXTERNAL)) {
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std::lock_guard<std::mutex> lock(mutex);
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pool->release(m_node);
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}
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if (isHugePages()) {
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freeLargePagesMemory();
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}
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else {
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_mm_free(m_scratchpad);
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}
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}
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#ifndef XMRIG_FEATURE_HWLOC
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uint32_t xmrig::VirtualMemory::bindToNUMANode(int64_t)
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{
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return 0;
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}
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#endif
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void xmrig::VirtualMemory::destroy()
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{
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delete pool;
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}
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void xmrig::VirtualMemory::init(bool hugePages, int poolSize)
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{
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if (!pool) {
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osInit();
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}
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pool = new MemoryPool(poolSize < 0 ? Cpu::info()->threads() : poolSize, hugePages);
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}
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