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openmpi/oshmem/mca/memheap/ptmalloc/memheap_ptmalloc.h
Nathan Hjelm b68d66bb9b MCA: Add the project/project version to the MCA base component
This commit adds support for project_framework_component_* parameter
matching. This is the first step in allowing the same framework name
in multiple projects. This change also bumps the MCA component version
to 2.1.0.

All master frameworks have been updated to use the new component
versioning macro. An mca.h has been added to each project to add a
project specific versioning macro of the form
PROJECT_MCA_VERSION_2_1_0.

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
2015-03-27 10:59:04 -06:00

73 строки
2.2 KiB
C

/**
* Copyright (c) 2013 Mellanox Technologies, Inc.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
* Description of the Registration Cache framework
*/
#ifndef MCA_MEMHEAP_PTMALLOC_H
#define MCA_MEMHEAP_PTMALLOC_H
#include "oshmem_config.h"
#include "oshmem/mca/mca.h"
#include "opal/class/opal_list.h"
#include "opal/threads/mutex.h"
#include "oshmem/mca/memheap/memheap.h"
#include "oshmem/mca/memheap/base/base.h"
#include "oshmem/mca/spml/spml.h"
#include "oshmem/util/oshmem_util.h"
#include "opal/class/opal_hash_table.h"
#include "opal/mca/btl/btl.h"
#include <string.h>
#include <sys/types.h>
#include <math.h>
BEGIN_C_DECLS
#include "malloc_defs.h"
/*
* At the moment we use only dlmalloc part of the ptmalloc3. Thread safety is implemented by using locks on
* alloc operations. Since all shmem alloc ops are collectives, malloc performance is not a problem. So it makes
* sense to use simpler algorithm.
*
* Heap is allocate in one chunk, and we implement our on sbrk like function that serves portions of the memory
* to malloc.
*
* At the moment we do not support growing/returning heap based memory to OS.
*/
/* Structure for managing shmem symmetric heap */
struct mca_memheap_ptmalloc_module_t {
mca_memheap_base_module_t super;
int priority; /** Module's Priority */
void *base;
size_t cur_size;
size_t max_size;
size_t max_alloc_size;
opal_mutex_t lock; /** Part of the allocator */
};
typedef struct mca_memheap_ptmalloc_module_t mca_memheap_ptmalloc_module_t;
OSHMEM_DECLSPEC extern mca_memheap_ptmalloc_module_t memheap_ptmalloc;
/*
* Buddy interface.
* Please pay attention to the new differences in the interface.
*/
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_module_init(memheap_context_t *);
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_alloc(size_t, void**);
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_realloc(size_t, void*, void **);
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_align(size_t, size_t, void**);
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_free(void*);
OSHMEM_DECLSPEC extern int mca_memheap_ptmalloc_finalize(void);
END_C_DECLS
#endif /* MCA_MEMHEAP_BUDDY_H */