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/**
* @file
*
* @ingroup RTEMSScoreHeap
*
* @brief Heap Handler Information API
*/
/*
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_SCORE_HEAPINFO_H
#define _RTEMS_SCORE_HEAPINFO_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup RTEMSScoreHeap
*
* @{
*/
/**
* @brief Run-time heap statistics.
*
* The value @a searches / @a allocs gives the mean number of searches per
* allocation, while @a max_search gives maximum number of searches ever
* performed on a single allocation call.
*/
typedef struct {
/**
* @brief Lifetime number of bytes allocated from this heap.
*
* This value is an integral multiple of the page size.
*/
uint64_t lifetime_allocated;
/**
* @brief Lifetime number of bytes freed to this heap.
*
* This value is an integral multiple of the page size.
*/
uint64_t lifetime_freed;
/**
* @brief Size of the allocatable area in bytes.
*
* This value is an integral multiple of the page size.
*/
uintptr_t size;
/**
* @brief Current free size in bytes.
*
* This value is an integral multiple of the page size.
*/
uintptr_t free_size;
/**
* @brief Minimum free size ever in bytes.
*
* This value is an integral multiple of the page size.
*/
uintptr_t min_free_size;
/**
* @brief Current number of free blocks.
*/
uint32_t free_blocks;
/**
* @brief Maximum number of free blocks ever.
*/
uint32_t max_free_blocks;
/**
* @brief Current number of used blocks.
*/
uint32_t used_blocks;
/**
* @brief Maximum number of blocks searched ever.
*/
uint32_t max_search;
/**
* @brief Total number of searches.
*/
uint32_t searches;
/**
* @brief Total number of successful allocations.
*/
uint32_t allocs;
/**
* @brief Total number of failed allocations.
*/
uint32_t failed_allocs;
/**
* @brief Total number of successful frees.
*/
uint32_t frees;
/**
* @brief Total number of successful resizes.
*/
uint32_t resizes;
} Heap_Statistics;
/**
* @brief Information about blocks.
*/
typedef struct {
/**
* @brief Number of blocks of this type.
*/
uintptr_t number;
/**
* @brief Largest block of this type.
*/
uintptr_t largest;
/**
* @brief Total size of the blocks of this type.
*/
uintptr_t total;
} Heap_Information;
/**
* @brief Information block returned by _Heap_Get_information().
*/
typedef struct {
Heap_Information Free;
Heap_Information Used;
Heap_Statistics Stats;
} Heap_Information_block;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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