mirror of
https://github.com/xmrig/xmrig.git
synced 2024-11-06 00:17:39 +00:00
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/* XMRig
|
|
* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
|
|
* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
|
|
* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
|
|
* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
|
|
* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
|
|
* Copyright 2016-2017 XMRig <support@xmrig.com>
|
|
*
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __MEMORY_H__
|
|
#define __MEMORY_H__
|
|
|
|
#include <stdlib.h>
|
|
#include <mm_malloc.h>
|
|
#include <sys/mman.h>
|
|
|
|
#include "persistent_memory.h"
|
|
#include "options.h"
|
|
#include "utils/applog.h"
|
|
|
|
|
|
char *persistent_memory;
|
|
int persistent_memory_flags = 0;
|
|
|
|
|
|
const char * persistent_memory_allocate() {
|
|
const int ratio = opt_double_hash ? 2 : 1;
|
|
const int size = MEMORY * (opt_n_threads * ratio + 1);
|
|
persistent_memory_flags |= MEMORY_HUGEPAGES_AVAILABLE;
|
|
|
|
persistent_memory = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0);
|
|
|
|
if (persistent_memory == MAP_FAILED) {
|
|
persistent_memory = _mm_malloc(size, 4096);
|
|
return persistent_memory;
|
|
}
|
|
|
|
persistent_memory_flags |= MEMORY_HUGEPAGES_ENABLED;
|
|
|
|
if (madvise(persistent_memory, size, MADV_RANDOM | MADV_WILLNEED) != 0) {
|
|
applog(LOG_ERR, "madvise failed");
|
|
}
|
|
|
|
if (mlock(persistent_memory, size) == 0) {
|
|
persistent_memory_flags |= MEMORY_LOCK;
|
|
}
|
|
|
|
return persistent_memory;
|
|
}
|
|
|
|
|
|
void persistent_memory_free() {
|
|
const int size = MEMORY * (opt_n_threads + 1);
|
|
|
|
if (persistent_memory_flags & MEMORY_HUGEPAGES_ENABLED) {
|
|
if (persistent_memory_flags & MEMORY_LOCK) {
|
|
munlock(persistent_memory, size);
|
|
}
|
|
|
|
munmap(persistent_memory, size);
|
|
}
|
|
else {
|
|
_mm_free(persistent_memory);
|
|
}
|
|
}
|
|
|
|
|
|
#endif /* __MEMORY_H__ */
|