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
|
/*
* Copyright (c) 2011-2014, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "SubsystemObject.h"
#include "Subsystem.h"
#include "InstanceConfigurableElement.h"
#include "ParameterBlackboard.h"
#include "ParameterAccessContext.h"
#include "MappingContext.h"
#include "ParameterType.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <sstream>
#include <stdarg.h>
CSubsystemObject::CSubsystemObject(CInstanceConfigurableElement* pInstanceConfigurableElement)
: _pInstanceConfigurableElement(pInstanceConfigurableElement),
_uiDataSize(pInstanceConfigurableElement->getFootPrint()),
_pucBlackboardLocation(NULL),
_uiAccessedIndex(0)
{
// Syncer
_pInstanceConfigurableElement->setSyncer(this);
}
CSubsystemObject::~CSubsystemObject()
{
_pInstanceConfigurableElement->unsetSyncer();
}
string CSubsystemObject::getFormattedMappingValue() const
{
// Default formatted mapping value is empty
return "";
}
// Blackboard data location
uint8_t* CSubsystemObject::getBlackboardLocation() const
{
return _pucBlackboardLocation;
}
// Size
uint32_t CSubsystemObject::getSize() const
{
return _uiDataSize;
}
// Conversion utility
uint32_t CSubsystemObject::asInteger(const string& strValue)
{
return strtoul(strValue.c_str(), NULL, 0);
}
string CSubsystemObject::asString(uint32_t uiValue)
{
ostringstream ostr;
ostr << uiValue;
return ostr.str();
}
int CSubsystemObject::toPlainInteger(
const CInstanceConfigurableElement *instanceConfigurableElement,
int sizeOptimizedData)
{
if (instanceConfigurableElement) {
// Get actual element type
const CTypeElement *typeElement =
static_cast<const CParameterType *>(instanceConfigurableElement->getTypeElement());
// Do the extension
return typeElement->toPlainInteger(sizeOptimizedData);
}
return sizeOptimizedData;
}
// Default back synchronization
void CSubsystemObject::setDefaultValues(CParameterBlackboard& parameterBlackboard) const
{
string strError;
// Create access context
CParameterAccessContext parameterAccessContext(strError, ¶meterBlackboard, false);
// Just implement back synchronization with default values
_pInstanceConfigurableElement->setDefaultValues(parameterAccessContext);
}
// Synchronization
bool CSubsystemObject::sync(CParameterBlackboard& parameterBlackboard, bool bBack, string& strError)
{
// Get blackboard location
_pucBlackboardLocation = parameterBlackboard.getLocation(_pInstanceConfigurableElement->getOffset());
// Access index init
_uiAccessedIndex = 0;
#ifdef SIMULATION
return true;
#endif
// Retrieve subsystem
const CSubsystem* pSubsystem = _pInstanceConfigurableElement->getBelongingSubsystem();
// Get it's health insdicator
bool bIsSubsystemAlive = pSubsystem->isAlive();
// Check subsystem health
if (!bIsSubsystemAlive) {
strError = "Susbsystem not alive";
}
// Synchronize to/from HW
if (!bIsSubsystemAlive || !accessHW(bBack, strError)) {
strError = string("Unable to ") + (bBack ? "back" : "forward") + " synchronize configurable element " +
_pInstanceConfigurableElement->getPath() + ": " + strError;
log_warning(strError);
// Fall back to parameter default initialization
if (bBack) {
setDefaultValues(parameterBlackboard);
}
return false;
}
return true;
}
// Sync to/from HW
bool CSubsystemObject::sendToHW(string& strError)
{
strError = "Send to HW interface not implemented at subsystem level";
return false;
}
bool CSubsystemObject::receiveFromHW(string& strError)
{
(void)strError;
// Back synchronization is not supported at subsystem level.
// Rely on blackboard content
return true;
}
// Fall back HW access
bool CSubsystemObject::accessHW(bool bReceive, string& strError)
{
// Default access fall back
if (bReceive) {
return receiveFromHW(strError);
} else {
return sendToHW(strError);
}
}
// Blackboard access from subsystems
void CSubsystemObject::blackboardRead(void* pvData, uint32_t uiSize)
{
assert(_uiAccessedIndex + uiSize <= _uiDataSize);
memcpy(pvData, _pucBlackboardLocation + _uiAccessedIndex, uiSize);
_uiAccessedIndex += uiSize;
}
void CSubsystemObject::blackboardWrite(const void* pvData, uint32_t uiSize)
{
assert(_uiAccessedIndex + uiSize <= _uiDataSize);
memcpy(_pucBlackboardLocation + _uiAccessedIndex, pvData, uiSize);
_uiAccessedIndex += uiSize;
}
// Logging
void CSubsystemObject::log_info(const string& strMessage, ...) const
{
char *pacBuffer;
va_list listPointer;
va_start(listPointer, strMessage);
vasprintf(&pacBuffer, strMessage.c_str(), listPointer);
va_end(listPointer);
if (pacBuffer != NULL) {
_pInstanceConfigurableElement->log_info(pacBuffer);
}
free(pacBuffer);
}
void CSubsystemObject::log_warning(const string& strMessage, ...) const
{
char *pacBuffer;
va_list listPointer;
va_start(listPointer, strMessage);
vasprintf(&pacBuffer, strMessage.c_str(), listPointer);
va_end(listPointer);
if (pacBuffer != NULL) {
_pInstanceConfigurableElement->log_warning(pacBuffer);
}
free(pacBuffer);
}
// Configurable element retrieval
const CInstanceConfigurableElement* CSubsystemObject::getConfigurableElement() const
{
return _pInstanceConfigurableElement;
}
// Belonging Subsystem retrieval
const CSubsystem* CSubsystemObject::getSubsystem() const
{
return _pInstanceConfigurableElement->getBelongingSubsystem();
}
|