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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
* Monday, May 2, 2005
*
* Purpose: This file contains declarations which are visible only within
* the H5MP package. Source files outside the H5MP package should
* include H5MPprivate.h instead.
*/
#ifndef H5MP_PACKAGE
#error "Do not include this file outside the H5MP package!"
#endif
#ifndef _H5MPpkg_H
#define _H5MPpkg_H
/* Get package's private header */
#include "H5MPprivate.h" /* Memory Pools */
/* Other private headers needed by this file */
#include "H5FLprivate.h" /* Free Lists */
/**************************/
/* Package Private Macros */
/**************************/
/* Alignment macros */
/* (Ideas from Apache APR :-) */
/* Default alignment necessary */
#define H5MP_BLOCK_ALIGNMENT 8
/* General alignment macro */
/* (this only works for aligning to power of 2 boundary) */
#define H5MP_ALIGN(x, a) \
(((x) + ((size_t)(a)) - 1) & ~(((size_t)(a)) - 1))
/* Default alignment */
#define H5MP_BLOCK_ALIGN(x) H5MP_ALIGN(x, H5MP_BLOCK_ALIGNMENT)
/****************************/
/* Package Private Typedefs */
/****************************/
/* Free block in pool */
typedef struct H5MP_page_blk_t {
size_t size; /* Size of block (includes this H5MP_page_blk_t info) */
unsigned is_free:1; /* Flag to indicate the block is free */
struct H5MP_page_t *page; /* Pointer to page block is located in */
struct H5MP_page_blk_t *prev; /* Pointer to previous block in page */
struct H5MP_page_blk_t *next; /* Pointer to next block in page */
} H5MP_page_blk_t;
/* Memory pool page */
typedef struct H5MP_page_t {
size_t free_size; /* Total amount of free space in page */
unsigned fac_alloc:1; /* Flag to indicate the page was allocated by the pool's factory */
H5MP_page_blk_t *free_blk; /* Pointer to first free block in page */
struct H5MP_page_t *next; /* Pointer to next page in pool */
struct H5MP_page_t *prev; /* Pointer to previous page in pool */
} H5MP_page_t;
/* Memory pool header */
struct H5MP_pool_t {
H5FL_fac_head_t *page_fac; /* Free-list factory for pages */
size_t page_size; /* Page size for pool */
size_t free_size; /* Total amount of free space in pool */
size_t max_size; /* Maximum block that will fit in a standard page */
H5MP_page_t *first; /* Pointer to first page in pool */
unsigned flags; /* Bit flags for pool settings */
};
/*****************************************/
/* Package Private Variable Declarations */
/*****************************************/
/******************************/
/* Package Private Prototypes */
/******************************/
#ifdef H5MP_TESTING
H5_DLL herr_t H5MP_get_pool_free_size (const H5MP_pool_t *mp, size_t *free_size);
H5_DLL htri_t H5MP_pool_is_free_size_correct(const H5MP_pool_t *mp);
H5_DLL herr_t H5MP_get_pool_first_page(const H5MP_pool_t *mp, H5MP_page_t **page);
H5_DLL herr_t H5MP_get_page_free_size(const H5MP_page_t *mp, size_t *page);
H5_DLL herr_t H5MP_get_page_next_page(const H5MP_page_t *page, H5MP_page_t **next_page);
#endif /* H5MP_TESTING */
#endif /* _H5MPpkg_H */
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