76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
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/*
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* Copyright (C) 2015 - 2018 Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice(s),
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice(s),
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef MEMKIND_INTERNAL_API
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#warning "DO NOT INCLUDE THIS FILE! IT IS INTERNAL MEMKIND API AND SOON WILL BE REMOVED FROM BIN & DEVEL PACKAGES"
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#endif
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#include <memkind.h>
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#include "memkind_default.h"
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#include "memkind_arena.h"
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#include <pthread.h>
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/*
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* Header file for the file-backed memory memkind operations.
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* More details in memkind_pmem(3) man page.
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*
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* Functionality defined in this header is considered as EXPERIMENTAL API.
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* API standards are described in memkind(3) man page.
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*/
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#define MEMKIND_PMEM_CHUNK_SIZE (1ull << 21ull) // 2MB
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int memkind_pmem_create(struct memkind *kind, struct memkind_ops *ops,
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const char *name);
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int memkind_pmem_destroy(struct memkind *kind);
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void *memkind_pmem_mmap(struct memkind *kind, void *addr, size_t size);
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int memkind_pmem_get_mmap_flags(struct memkind *kind, int *flags);
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struct memkind_pmem_extent {
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void *addrBase;
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size_t cb;
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off_t offset;
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};
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struct memkind_pmem {
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int fd;
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off_t offset;
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size_t max_size;
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pthread_mutex_t pmem_lock;
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int cextents;
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int cextentsAlloc;
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struct memkind_pmem_extent *rgextents;
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};
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extern struct memkind_ops MEMKIND_PMEM_OPS;
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#ifdef __cplusplus
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}
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#endif
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