blob: 078cc6936406572f42e773a0d69e80b5434dd94e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/**
* @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 */
|
