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
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
|
/*
* MOST NetServices "Light" V3.2.7.0.1796 MultiInstance Patch
*
* Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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/>.
*
* You may also obtain this software under a propriety license from Microchip.
* Please contact Microchip for further information.
*
*/
/*!
* \file
* \brief Implementation of Application Message Pool
*
* \cond MNS_INTERNAL_DOC
* \addtogroup G_AMSPOOL
* @{
*/
/*------------------------------------------------------------------------------------------------*/
/* Includes */
/*------------------------------------------------------------------------------------------------*/
#include "mns_amspool.h"
#include "mns_misc.h"
#include "mns_trace.h"
/*------------------------------------------------------------------------------------------------*/
/* Internal macros */
/*------------------------------------------------------------------------------------------------*/
#define INT_RX(ptr) ((Amsg_IntMsgRx_t*)(void*)(ptr)) /* parasoft-suppress MISRA2004-19_7 "common definition of type cast improves code" */
#define INT_TX(ptr) ((Amsg_IntMsgTx_t*)(void*)(ptr)) /* parasoft-suppress MISRA2004-19_7 "common definition of type cast improves code" */
/*------------------------------------------------------------------------------------------------*/
/* Internal prototypes */
/*------------------------------------------------------------------------------------------------*/
static void Amsp_FreeTxObj(void *self, Mns_AmsTx_Msg_t* msg_ptr);
/*------------------------------------------------------------------------------------------------*/
/* Initialization */
/*------------------------------------------------------------------------------------------------*/
/*! \brief Constructor of application message pool class
* \param self The instance
* \param mem_allocator_ptr Reference to memory allocator
* \param mns_inst_id MOST NetServices instance ID
*/
void Amsp_Ctor(CAmsMsgPool *self, Ams_MemAllocator_t *mem_allocator_ptr, uint8_t mns_inst_id)
{
self->mns_inst_id = mns_inst_id;
self->allocator_ptr = mem_allocator_ptr;
self->rx_rsvd_msg_ptr = Amsp_AllocRxObj(self, 45U);
self->rx_rsvd_msg_ref = self->rx_rsvd_msg_ptr;
self->terminated = false;
self->tx_notify_freed = false;
self->rx_notify_freed = false;
Sub_Ctor(&self->tx_freed_subject, self->mns_inst_id);
Sub_Ctor(&self->rx_freed_subject, self->mns_inst_id);
TR_ASSERT(self->mns_inst_id, "[AMSP]", (self->rx_rsvd_msg_ptr != NULL));
}
/*! \brief Frees pre-allocated message memory
* \param self The instance
*/
void Amsp_Cleanup(CAmsMsgPool *self)
{
Amsg_IntMsgRx_t *msg_ptr = INT_RX(self->rx_rsvd_msg_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Amsp_Cleanup: rx_rsvd_msg_ptr=0x%p", 1U, self->rx_rsvd_msg_ptr));
self->terminated = true;
self->tx_notify_freed = false;
self->rx_notify_freed = false;
if (msg_ptr != NULL)
{
self->allocator_ptr->free_fptr(self->allocator_ptr->inst_ptr, msg_ptr->memory_ptr, MNS_AMS_RX_PAYLOAD, msg_ptr->memory_info_ptr);
self->allocator_ptr->free_fptr(self->allocator_ptr->inst_ptr, msg_ptr, MNS_AMS_RX_OBJECT, msg_ptr->info_ptr);
self->rx_rsvd_msg_ref = NULL;
self->rx_rsvd_msg_ptr = NULL;
}
}
/*! \brief Assigns an observer which is invoked as soon as memory dedicated to a Tx message is
* freed.The data_ptr of the update callback function is not used (always \c NULL).
* See \ref Obs_UpdateCb_t.
* \param self The instance
* \param observer_ptr The observer
*/
void Amsp_AssignTxFreedObs(CAmsMsgPool *self, CObserver *observer_ptr)
{
(void)Sub_AddObserver(&self->tx_freed_subject, observer_ptr);
}
/*! \brief Assigns an observer which is invoked as soon as memory dedicated to a Tx message is
* freed.The data_ptr of the update callback function is not used (always \c NULL).
* See \ref Obs_UpdateCb_t.
* \param self The instance
* \param observer_ptr The observer
*/
void Amsp_AssignRxFreedObs(CAmsMsgPool *self, CObserver *observer_ptr)
{
(void)Sub_AddObserver(&self->rx_freed_subject, observer_ptr);
}
/*------------------------------------------------------------------------------------------------*/
/* Tx allocations */
/*------------------------------------------------------------------------------------------------*/
/*! \brief Allocates an internal Tx message object (without payload)
* \param self The instance
* \param payload_sz The required payload size in bytes
* \return Reference to the Tx message object if the allocation succeeds. Otherwise \c NULL.
*/
Mns_AmsTx_Msg_t* Amsp_AllocTxObj(CAmsMsgPool *self, uint16_t payload_sz)
{
void *payload_info_ptr = NULL;
void *payload_ptr = NULL;
void *obj_info_ptr = NULL;
Mns_AmsTx_Msg_t *msg_ptr = (Mns_AmsTx_Msg_t*)self->allocator_ptr->alloc_fptr(self->allocator_ptr->inst_ptr, AMSG_TX_OBJECT_SZ, MNS_AMS_TX_OBJECT, &obj_info_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Allocating TxObject: msg_ptr=0x%p, size=%d, info_ptr=0x%p", 3U, msg_ptr, AMSG_TX_OBJECT_SZ, obj_info_ptr));
if (msg_ptr != NULL)
{
if (payload_sz > 0U)
{
payload_ptr = self->allocator_ptr->alloc_fptr(self->allocator_ptr->inst_ptr, payload_sz, MNS_AMS_TX_PAYLOAD, &payload_info_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Allocating TxPayload: msg_ptr=0x%p, mem_ptr=0x%p, size=%d, info_ptr=0x%p", 4U, msg_ptr, payload_ptr, payload_sz, payload_info_ptr));
if (payload_ptr == NULL)
{
TR_INFO((self->mns_inst_id, "[AMSP]", "Freeing TxObject: msg_ptr=0x%p, info_ptr=0x%p", 2U, msg_ptr, obj_info_ptr));
self->allocator_ptr->free_fptr(self->allocator_ptr->inst_ptr, msg_ptr, MNS_AMS_TX_OBJECT, obj_info_ptr);
msg_ptr = NULL;
}
}
}
if (msg_ptr != NULL)
{
Amsg_TxCtor(msg_ptr, obj_info_ptr, &Amsp_FreeTxObj, self);
if (payload_ptr != NULL)
{
Amsg_TxSetInternalPayload(msg_ptr, (uint8_t*)payload_ptr, payload_sz, payload_info_ptr);
}
}
else
{
self->tx_notify_freed = true;
}
return msg_ptr;
}
/*! \brief Frees an internal Tx message object including its payload
* \param self The instance
* \param msg_ptr Reference to the internal Tx message object
*/
static void Amsp_FreeTxObj(void *self, Mns_AmsTx_Msg_t* msg_ptr)
{
CAmsMsgPool *self_ = (CAmsMsgPool*)self;
Amsg_IntMsgTx_t *obj_ptr = INT_TX(msg_ptr);
if (obj_ptr->memory_ptr != NULL)
{
TR_INFO((self_->mns_inst_id, "[AMSP]", "Freeing TxPayload: msg_ptr=0x%p, mem_ptr=0x%p, info_ptr=0x%p", 3U, msg_ptr, obj_ptr->memory_ptr, obj_ptr->memory_info_ptr));
self_->allocator_ptr->free_fptr(self_->allocator_ptr->inst_ptr, obj_ptr->memory_ptr, MNS_AMS_TX_PAYLOAD, obj_ptr->memory_info_ptr);
Amsg_TxSetInternalPayload(msg_ptr, NULL, 0U, NULL);
}
TR_INFO((self_->mns_inst_id, "[AMSP]", "Freeing TxObject: msg_ptr=0x%p, info_ptr=0x%p", 2U, msg_ptr, obj_ptr->info_ptr));
self_->allocator_ptr->free_fptr(self_->allocator_ptr->inst_ptr, msg_ptr, MNS_AMS_TX_OBJECT, obj_ptr->info_ptr);
if (self_->tx_notify_freed)
{
Sub_Notify(&self_->tx_freed_subject, NULL);
self_->tx_notify_freed = false;
}
}
/*------------------------------------------------------------------------------------------------*/
/* Rx allocations */
/*------------------------------------------------------------------------------------------------*/
/*! \brief Allocates an internal Rx message object (optionally with payload)
* \param self The instance
* \param payload_sz The required payload size that shall be allocated and assigned to the object.
* Value "0" means that no payload memory shall be allocated in the same turn.
* \return Reference to the Rx message object if the allocation succeeds. Otherwise \c NULL.
*/
Mns_AmsRx_Msg_t* Amsp_AllocRxObj(CAmsMsgPool *self, uint16_t payload_sz)
{
void *info_ptr = NULL;
Mns_AmsRx_Msg_t *msg_ptr = (Mns_AmsRx_Msg_t*)self->allocator_ptr->alloc_fptr(self->allocator_ptr->inst_ptr, AMSG_RX_OBJECT_SZ, MNS_AMS_RX_OBJECT, &info_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Allocating RxObject: msg_ptr=0x%p, size=%d, info_ptr=0x%p", 3U, msg_ptr, AMSG_RX_OBJECT_SZ, info_ptr));
if (msg_ptr != NULL)
{
Amsg_RxCtor(msg_ptr, info_ptr);
Amsg_RxHandleSetup(msg_ptr);
if (payload_sz != 0U)
{
if (!Amsp_AllocRxPayload(self, payload_sz, msg_ptr))
{
Amsp_FreeRxObj(self, msg_ptr); /* payload allocation has failed - release message object */
msg_ptr = NULL;
}
}
}
return msg_ptr;
}
/*! \brief Allocates a reserved Rx message object with payload up to 45 bytes payload
* \param self The instance
* \return Reference to the Rx message object if the allocation succeeds. Otherwise \c NULL.
*/
Mns_AmsRx_Msg_t* Amsp_AllocRxRsvd(CAmsMsgPool *self)
{
Mns_AmsRx_Msg_t *msg_ptr = NULL;
if (self->rx_rsvd_msg_ptr != NULL)
{
msg_ptr = self->rx_rsvd_msg_ptr;
self->rx_rsvd_msg_ptr = NULL;
Amsg_RxHandleSetup(msg_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Retrieving reserved RxObject: msg_ptr=0x%p", 1U, msg_ptr));
}
else
{
self->rx_notify_freed = true;
}
return msg_ptr;
}
/*! \brief Allocates payload for an internal Rx message object
* \param self The instance
* \param payload_sz Payload size in bytes
* \param msg_ptr Reference to the internal Rx message object
* \return Returns \c true if the allocation succeeds. Otherwise \c NULL.
*/
bool Amsp_AllocRxPayload(CAmsMsgPool *self, uint16_t payload_sz, Mns_AmsRx_Msg_t* msg_ptr)
{
bool success = false;
void *info_ptr = NULL;
void *mem_ptr = self->allocator_ptr->alloc_fptr(self->allocator_ptr->inst_ptr, payload_sz, MNS_AMS_RX_PAYLOAD, &info_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Allocating RxPayload: msg_ptr=0x%p, mem_ptr=0x%p, size=%d, info_ptr=0x%p", 4U, msg_ptr, mem_ptr, payload_sz, info_ptr));
TR_ASSERT(self->mns_inst_id, "[AMSP]", (msg_ptr != NULL)); /* message reference is required */
TR_ASSERT(self->mns_inst_id, "[AMSP]", (msg_ptr != self->rx_rsvd_msg_ref)); /* forbidden overwrite of pre-allocated message payload */
if (mem_ptr != NULL)
{
Amsg_RxHandleSetMemory(msg_ptr, (uint8_t*)mem_ptr, payload_sz, info_ptr);
success = true;
}
return success;
}
/*! \brief Frees an internal Rx message object
* \param self The instance
* \param msg_ptr Reference to the internal Rx message object
* \details Payload that is assigned to the message object has to be freed
* separately by using Amsp_FreeRxPayload().
*/
void Amsp_FreeRxObj(CAmsMsgPool *self, Mns_AmsRx_Msg_t* msg_ptr)
{
if (msg_ptr == self->rx_rsvd_msg_ref)
{
TR_ASSERT(self->mns_inst_id, "[AMSP]", (self->rx_rsvd_msg_ptr == NULL)); /* before freeing, message shall be reserved */
TR_INFO((self->mns_inst_id, "[AMSP]", "Restoring reserved RxObject: msg_ptr=0x%p", 1U, msg_ptr));
self->rx_rsvd_msg_ptr = self->rx_rsvd_msg_ref; /* restore reserved message */
if (self->terminated != false)
{ /* also free reserved message if it is freed */
Amsp_Cleanup(self); /* from any queue after Amsp_Cleanup() */
}
}
else
{
Amsg_IntMsgRx_t *obj_ptr = INT_RX(msg_ptr);
TR_INFO((self->mns_inst_id, "[AMSP]", "Freeing RxObject: msg_ptr=0x%p, info_ptr=0x%p", 2U, msg_ptr, obj_ptr->info_ptr));
self->allocator_ptr->free_fptr(self->allocator_ptr->inst_ptr, msg_ptr, MNS_AMS_RX_OBJECT, obj_ptr->info_ptr);
}
if (self->rx_notify_freed)
{
Sub_Notify(&self->rx_freed_subject, NULL);
self->rx_notify_freed = false;
}
}
/*! \brief Frees payload that is associated with an internal Rx message object
* \param self The instance
* \param msg_ptr Reference to the internal Rx message object
*/
void Amsp_FreeRxPayload(CAmsMsgPool *self, Mns_AmsRx_Msg_t* msg_ptr)
{
Amsg_IntMsgRx_t *obj_ptr = INT_RX(msg_ptr);
if (msg_ptr == self->rx_rsvd_msg_ref)
{
TR_ASSERT(self->mns_inst_id, "[AMSP]", (self->rx_rsvd_msg_ptr == NULL)); /* release payload before object */
TR_INFO((self->mns_inst_id, "[AMSP]", "Restoring reserved RxPayload: msg_ptr=0x%p", 1U, msg_ptr));
}
else if (obj_ptr->memory_ptr != NULL)
{
TR_INFO((self->mns_inst_id, "[AMSP]", "Freeing RxPayload: msg_ptr=0x%p, mem_ptr=0x%p, info_ptr=0x%p", 3U, msg_ptr, obj_ptr->memory_ptr, obj_ptr->memory_info_ptr));
self->allocator_ptr->free_fptr(self->allocator_ptr->inst_ptr, obj_ptr->memory_ptr, MNS_AMS_RX_PAYLOAD, obj_ptr->memory_info_ptr);
Amsg_RxHandleSetMemory(msg_ptr, NULL, 0U, NULL);
}
}
/*!
* @}
* \endcond
*/
/*------------------------------------------------------------------------------------------------*/
/* End of file */
/*------------------------------------------------------------------------------------------------*/
|
