blob: 04a59a72111f939939ed977d69d9e245d53ed4e4 (
plain)
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
/*
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file chfactory.h
* @brief ChibiOS objects factory structures and macros.
*
* @addtogroup objects_factory
* @{
*/
#ifndef CHFACTORY_H
#define CHFACTORY_H
#if (CH_CFG_USE_FACTORY == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Module constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Module pre-compile time settings. */
/*===========================================================================*/
/**
* @brief Maximum length for object names.
* @details If the specified length is zero then the name is stored by
* pointer but this could have unintended side effects.
*/
#if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGHT) || defined(__DOXYGEN__)
#define CH_CFG_FACTORY_MAX_NAMES_LENGHT 8
#endif
/**
* @brief Enables factory for generic objects.
* @note Generic objects require the heap allocator.
*/
#if !defined(CH_CFG_FACTORY_GENERIC_BUFFER) || defined(__DOXYGEN__)
#define CH_CFG_FACTORY_GENERIC_BUFFER TRUE
#endif
/**
* @brief Enables factory for semaphores.
*/
#if !defined(CH_CFG_FACTORY_SEMAPHORES) || defined(__DOXYGEN__)
#define CH_CFG_FACTORY_SEMAPHORES TRUE
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#define CH_FACTORY_REQUIRES_POOLS \
((CH_CFG_FACTORY_SEMAPHORES == TRUE))
#define CH_FACTORY_REQUIRES_HEAP \
((CH_CFG_FACTORY_GENERIC_BUFFER == TRUE))
#if (CH_CFG_FACTORY_MAX_NAMES_LENGHT < 0) || \
(CH_CFG_FACTORY_MAX_NAMES_LENGHT > 32)
#error "invalid CH_CFG_FACTORY_MAX_NAMES_LENGHT value"
#endif
#if CH_CFG_USE_MEMCORE == FALSE
#error "CH_CFG_USE_FACTORY requires CH_CFG_USE_MEMCORE"
#endif
#if (CH_FACTORY_REQUIRES_POOLS == TRUE) && (CH_CFG_USE_MEMPOOLS == FALSE)
#error "CH_CFG_USE_MEMPOOLS is required"
#endif
#if (CH_FACTORY_REQUIRES_HEAP == TRUE) && (CH_CFG_USE_HEAP == FALSE)
#error "CH_CFG_USE_HEAP is required"
#endif
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) && (CH_CFG_USE_SEMAPHORES == FALSE)
#error "CH_CFG_FACTORY_SEMAPHORES requires CH_CFG_USE_SEMAPHORES"
#endif
/*===========================================================================*/
/* Module data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a dynamic object list element.
*/
typedef struct ch_dyn_element {
/**
* @brief Next dynamic object in the list.
*/
struct ch_dyn_element *next;
/**
* @brief Number of references to this object.
*/
ucnt_t refs;
#if (CH_CFG_FACTORY_MAX_NAMES_LENGHT > 0) || defined(__DOXIGEN__)
char name[CH_CFG_FACTORY_MAX_NAMES_LENGHT];
#else
const char *name;
#endif
} dyn_element_t;
/**
* @brief Type of a dynamic object list.
*/
typedef struct ch_dyn_list {
dyn_element_t *next;
} dyn_list_t;
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
/**
* @brief Type of a dynamic semaphore.
*/
typedef struct ch_dyn_object {
/**
* @brief List element of the dynamic object.
*/
dyn_element_t element;
/**
* @brief Physical objects.
* @note This requires C99.
*/
uint8_t buffer[];
} dyn_buffer_t;
#endif
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
/**
* @brief Type of a dynamic semaphore.
*/
typedef struct ch_dyn_semaphore {
/**
* @brief List element of the dynamic semaphore.
*/
dyn_element_t element;
/**
* @brief Physical semaphore.
*/
semaphore_t sem;
} dyn_semaphore_t;
#endif
/**
* @brief Type of the factory main object.
*/
typedef struct ch_objects_factory {
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
/**
* @brief List of the allocated objects.
*/
dyn_list_t obj_list;
#endif /* CH_CFG_FACTORY_GENERIC_BUFFER = TRUE */
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
/**
* @brief List of the allocated semaphores.
*/
dyn_list_t sem_list;
/**
* @brief Pool of the available semaphores.
*/
memory_pool_t sem_pool;
#endif /* CH_CFG_FACTORY_SEMAPHORES = TRUE */
} objects_factory_t;
/*===========================================================================*/
/* Module macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
objects_factory_t ch_factory;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void _factory_init(void);
// dyn_registered_object_t *chFactoryRegisterObject(const char *name,
// void *objp);
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
dyn_buffer_t *chFactoryCreateBuffer(const char *name, size_t size);
dyn_buffer_t *chFactoryFindBuffer(const char *name);
void chFactoryReleaseBuffer(dyn_buffer_t *dbp);
#endif
#if (CH_CFG_FACTORY_SEMAPHORES == TRUE) || defined(__DOXIGEN__)
dyn_semaphore_t *chFactoryCreateSemaphore(const char *name, cnt_t n);
dyn_semaphore_t *chFactoryFindSemaphore(const char *name);
void chFactoryReleaseSemaphore(dyn_semaphore_t *dsp);
#endif
#ifdef __cplusplus
}
#endif
/*===========================================================================*/
/* Module inline functions. */
/*===========================================================================*/
/**
* @brief Duplicates an object reference.
* @note This function can be used on any kind of dynamic object.
*
* @param[in] dep pointer to the element field of the object
*
* @iclass
*/
static inline dyn_element_t *chFactoryDuplicateReferenceI(dyn_element_t *dep) {
chDbgCheckClassI();
dep->refs++;
return dep;
}
#if (CH_CFG_FACTORY_GENERIC_BUFFER == TRUE) || defined(__DOXIGEN__)
/**
* @brief Returns the size of a generic dynamic buffer object.
*
* @return The size of the buffer object in bytes.
*
* @api
*/
static inline size_t chFactoryGetBufferSize(dyn_buffer_t *dbp) {
return chHeapGetSize(dbp) - sizeof (dyn_element_t);
}
#endif
#endif /* CH_CFG_USE_FACTORY == TRUE */
#endif /* CHFACTORY_H */
/** @} */
|
