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
|
// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include "lib/ArduinoJson/Collection/CollectionData.hpp"
#include "lib/ArduinoJson/Variant/VariantData.hpp"
namespace ARDUINOJSON_NAMESPACE {
inline bool variantEquals(const VariantData* a, const VariantData* b) {
return variantCompare(a, b) == COMPARE_RESULT_EQUAL;
}
inline VariantSlot* CollectionData::addSlot(MemoryPool* pool) {
VariantSlot* slot = pool->allocVariant();
if (!slot)
return 0;
if (_tail) {
_tail->setNextNotNull(slot);
_tail = slot;
} else {
_head = slot;
_tail = slot;
}
slot->clear();
return slot;
}
inline VariantData* CollectionData::addElement(MemoryPool* pool) {
return slotData(addSlot(pool));
}
template <typename TAdaptedString>
inline VariantData* CollectionData::addMember(TAdaptedString key,
MemoryPool* pool) {
VariantSlot* slot = addSlot(pool);
if (!slotSetKey(slot, key, pool)) {
removeSlot(slot);
return 0;
}
return slot->data();
}
inline void CollectionData::clear() {
_head = 0;
_tail = 0;
}
template <typename TAdaptedString>
inline bool CollectionData::containsKey(const TAdaptedString& key) const {
return getSlot(key) != 0;
}
inline bool CollectionData::copyFrom(const CollectionData& src,
MemoryPool* pool) {
clear();
for (VariantSlot* s = src._head; s; s = s->next()) {
VariantData* var;
if (s->key() != 0) {
if (s->ownsKey())
var = addMember(RamStringAdapter(s->key()), pool);
else
var = addMember(ConstRamStringAdapter(s->key()), pool);
} else {
var = addElement(pool);
}
if (!var)
return false;
if (!var->copyFrom(*s->data(), pool))
return false;
}
return true;
}
inline bool CollectionData::equalsObject(const CollectionData& other) const {
size_t count = 0;
for (VariantSlot* slot = _head; slot; slot = slot->next()) {
VariantData* v1 = slot->data();
VariantData* v2 = other.getMember(adaptString(slot->key()));
if (!variantEquals(v1, v2))
return false;
count++;
}
return count == other.size();
}
inline bool CollectionData::equalsArray(const CollectionData& other) const {
VariantSlot* s1 = _head;
VariantSlot* s2 = other._head;
for (;;) {
if (s1 == s2)
return true;
if (!s1 || !s2)
return false;
if (!variantEquals(s1->data(), s2->data()))
return false;
s1 = s1->next();
s2 = s2->next();
}
}
template <typename TAdaptedString>
inline VariantSlot* CollectionData::getSlot(TAdaptedString key) const {
VariantSlot* slot = _head;
while (slot) {
if (key.equals(slot->key()))
break;
slot = slot->next();
}
return slot;
}
inline VariantSlot* CollectionData::getSlot(size_t index) const {
if (!_head)
return 0;
return _head->next(index);
}
inline VariantSlot* CollectionData::getPreviousSlot(VariantSlot* target) const {
VariantSlot* current = _head;
while (current) {
VariantSlot* next = current->next();
if (next == target)
return current;
current = next;
}
return 0;
}
template <typename TAdaptedString>
inline VariantData* CollectionData::getMember(TAdaptedString key) const {
VariantSlot* slot = getSlot(key);
return slot ? slot->data() : 0;
}
template <typename TAdaptedString>
inline VariantData* CollectionData::getOrAddMember(TAdaptedString key,
MemoryPool* pool) {
// ignore null key
if (key.isNull())
return 0;
// search a matching key
VariantSlot* slot = getSlot(key);
if (slot)
return slot->data();
return addMember(key, pool);
}
inline VariantData* CollectionData::getElement(size_t index) const {
VariantSlot* slot = getSlot(index);
return slot ? slot->data() : 0;
}
inline VariantData* CollectionData::getOrAddElement(size_t index,
MemoryPool* pool) {
VariantSlot* slot = _head;
while (slot && index > 0) {
slot = slot->next();
index--;
}
if (!slot)
index++;
while (index > 0) {
slot = addSlot(pool);
index--;
}
return slotData(slot);
}
inline void CollectionData::removeSlot(VariantSlot* slot) {
if (!slot)
return;
VariantSlot* prev = getPreviousSlot(slot);
VariantSlot* next = slot->next();
if (prev)
prev->setNext(next);
else
_head = next;
if (!next)
_tail = prev;
}
inline void CollectionData::removeElement(size_t index) {
removeSlot(getSlot(index));
}
inline size_t CollectionData::memoryUsage() const {
size_t total = 0;
for (VariantSlot* s = _head; s; s = s->next()) {
total += sizeof(VariantSlot) + s->data()->memoryUsage();
if (s->ownsKey())
total += strlen(s->key()) + 1;
}
return total;
}
inline size_t CollectionData::nesting() const {
size_t maxChildNesting = 0;
for (VariantSlot* s = _head; s; s = s->next()) {
size_t childNesting = s->data()->nesting();
if (childNesting > maxChildNesting)
maxChildNesting = childNesting;
}
return maxChildNesting + 1;
}
inline size_t CollectionData::size() const {
return slotSize(_head);
}
template <typename T>
inline void movePointer(T*& p, ptrdiff_t offset) {
if (!p)
return;
p = reinterpret_cast<T*>(
reinterpret_cast<void*>(reinterpret_cast<char*>(p) + offset));
ARDUINOJSON_ASSERT(isAligned(p));
}
inline void CollectionData::movePointers(ptrdiff_t stringDistance,
ptrdiff_t variantDistance) {
movePointer(_head, variantDistance);
movePointer(_tail, variantDistance);
for (VariantSlot* slot = _head; slot; slot = slot->next())
slot->movePointers(stringDistance, variantDistance);
}
} // namespace ARDUINOJSON_NAMESPACE
|
