92 строки
2.9 KiB
C
92 строки
2.9 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2013 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 Voltaire. All rights reserved.
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* Copyright (c) 2011-2018 Los Alamos National Security, LLC. All rights
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* reserved.
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*
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*/
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#ifndef MCA_MPOOL_HUGEPAGE_H
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#define MCA_MPOOL_HUGEPAGE_H
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#include "opal_config.h"
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_free_list.h"
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#include "opal/class/opal_rb_tree.h"
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#include "opal/mca/event/event.h"
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#include "opal/mca/mpool/mpool.h"
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#include "opal/util/proc.h"
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#include "opal/mca/allocator/allocator.h"
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#include "opal/util/sys_limits.h"
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BEGIN_C_DECLS
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struct mca_mpool_hugepage_module_t;
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typedef struct mca_mpool_hugepage_module_t mca_mpool_hugepage_module_t;
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struct mca_mpool_hugepage_component_t {
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mca_mpool_base_component_t super;
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bool print_stats;
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opal_list_t huge_pages;
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mca_mpool_hugepage_module_t *modules;
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int module_count;
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unsigned long bytes_allocated;
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};
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typedef struct mca_mpool_hugepage_component_t mca_mpool_hugepage_component_t;
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OPAL_DECLSPEC extern mca_mpool_hugepage_component_t mca_mpool_hugepage_component;
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struct mca_mpool_hugepage_module_t;
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struct mca_mpool_hugepage_hugepage_t {
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/** opal list item superclass */
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opal_list_item_t super;
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/** page size in bytes */
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unsigned long page_size;
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/** path for mmapped files */
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char *path;
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/** counter to help ensure unique file names for mmaped files */
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volatile int32_t count;
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/** some platforms allow allocation of hugepages through mmap flags */
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int mmap_flags;
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};
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typedef struct mca_mpool_hugepage_hugepage_t mca_mpool_hugepage_hugepage_t;
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OBJ_CLASS_DECLARATION(mca_mpool_hugepage_hugepage_t);
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struct mca_mpool_hugepage_module_t {
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mca_mpool_base_module_t super;
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mca_mpool_hugepage_hugepage_t *huge_page;
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mca_allocator_base_module_t *allocator;
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opal_mutex_t lock;
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opal_rb_tree_t allocation_tree;
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};
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/*
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* Initializes the mpool module.
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*/
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int mca_mpool_hugepage_module_init (mca_mpool_hugepage_module_t *mpool,
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mca_mpool_hugepage_hugepage_t *huge_page);
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void *mca_mpool_hugepage_seg_alloc (void *ctx, size_t *sizep);
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void mca_mpool_hugepage_seg_free (void *ctx, void *addr);
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END_C_DECLS
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#endif
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