3619649488

Build # 3619649488

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push

github

Committed by Benoit Blanchon

Commit Message

CI: use `ubuntu-20.04` for GCC

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/src/ArduinoJson/Document/BasicJsonDocument.hpp

// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2022, Benoit BLANCHON
// MIT License

#pragma once

#include <ArduinoJson/Document/JsonDocument.hpp>

namespace ARDUINOJSON_NAMESPACE {

// Helper to implement the "base-from-member" idiom
// (we need to store the allocator before constructing JsonDocument)
template <typename TAllocator>
class AllocatorOwner {
 public:
  AllocatorOwner() {}
  AllocatorOwner(TAllocator a) : _allocator(a) {}

  void* allocate(size_t size) {
    return _allocator.allocate(size);
  }

  void deallocate(void* ptr) {
    if (ptr)
      _allocator.deallocate(ptr);
  }

  void* reallocate(void* ptr, size_t new_size) {
    return _allocator.reallocate(ptr, new_size);
  }

  TAllocator& allocator() {
    return _allocator;
  }

 private:
  TAllocator _allocator;
};

template <typename TAllocator>
class BasicJsonDocument : AllocatorOwner<TAllocator>, public JsonDocument {
 public:
  explicit BasicJsonDocument(size_t capa, TAllocator alloc = TAllocator())
      : AllocatorOwner<TAllocator>(alloc), JsonDocument(allocPool(capa)) {}

  // Copy-constructor
  BasicJsonDocument(const BasicJsonDocument& src)
      : AllocatorOwner<TAllocator>(src), JsonDocument() {
    copyAssignFrom(src);
  }

  // Move-constructor
#if ARDUINOJSON_HAS_RVALUE_REFERENCES
  BasicJsonDocument(BasicJsonDocument&& src) : AllocatorOwner<TAllocator>(src) {
    moveAssignFrom(src);
  }
#endif

  BasicJsonDocument(const JsonDocument& src) {
    copyAssignFrom(src);
  }

  // Construct from variant, array, or object
  template <typename T>
  BasicJsonDocument(
      const T& src,
      typename enable_if<
          is_same<T, VariantRef>::value || is_same<T, VariantConstRef>::value ||
          is_same<T, ArrayRef>::value || is_same<T, ArrayConstRef>::value ||
          is_same<T, ObjectRef>::value ||
          is_same<T, ObjectConstRef>::value>::type* = 0)
      : JsonDocument(allocPool(src.memoryUsage())) {
    set(src);
  }

  // disambiguate
  BasicJsonDocument(VariantRef src)
      : JsonDocument(allocPool(src.memoryUsage())) {
    set(src);
  }

  ~BasicJsonDocument() {
    freePool();
  }

  BasicJsonDocument& operator=(const BasicJsonDocument& src) {
    copyAssignFrom(src);
    return *this;
  }

#if ARDUINOJSON_HAS_RVALUE_REFERENCES
  BasicJsonDocument& operator=(BasicJsonDocument&& src) {
    moveAssignFrom(src);
    return *this;
  }
#endif

  template <typename T>
  BasicJsonDocument& operator=(const T& src) {
    size_t requiredSize = src.memoryUsage();
    if (requiredSize > capacity())
      reallocPool(requiredSize);
    set(src);
    return *this;
  }

  void shrinkToFit() {
    ptrdiff_t bytes_reclaimed = _pool.squash();
    if (bytes_reclaimed == 0)
      return;

    void* old_ptr = _pool.buffer();
    void* new_ptr = this->reallocate(old_ptr, _pool.capacity());

    ptrdiff_t ptr_offset =
        static_cast<char*>(new_ptr) - static_cast<char*>(old_ptr);

    _pool.movePointers(ptr_offset);
    _data.movePointers(ptr_offset, ptr_offset - bytes_reclaimed);
  }

  bool garbageCollect() {
    // make a temporary clone and move assign
    BasicJsonDocument tmp(*this);
    if (!tmp.capacity())
      return false;
    tmp.set(*this);
    moveAssignFrom(tmp);
    return true;
  }

  using AllocatorOwner<TAllocator>::allocator;

 private:
  MemoryPool allocPool(size_t requiredSize) {
    size_t capa = addPadding(requiredSize);
    return MemoryPool(reinterpret_cast<char*>(this->allocate(capa)), capa);
  }

  void reallocPool(size_t requiredSize) {
    size_t capa = addPadding(requiredSize);
    if (capa == _pool.capacity())
      return;
    freePool();
    replacePool(allocPool(addPadding(requiredSize)));
  }

  void freePool() {
    this->deallocate(getPool()->buffer());
  }

  void copyAssignFrom(const JsonDocument& src) {
    reallocPool(src.capacity());
    set(src);
  }

  void moveAssignFrom(BasicJsonDocument& src) {
    freePool();
    _data = src._data;
    _pool = src._pool;
    src._data.setNull();
    src._pool = MemoryPool(0, 0);
  }
};

}  // namespace ARDUINOJSON_NAMESPACE

1	// ArduinoJson - https://arduinojson.org
2	// Copyright © 2014-2022, Benoit BLANCHON
3	// MIT License
4
5	#pragma once
6
7	#include <ArduinoJson/Document/JsonDocument.hpp>
8
9	namespace ARDUINOJSON_NAMESPACE {
10
11	// Helper to implement the "base-from-member" idiom
12	// (we need to store the allocator before constructing JsonDocument)
13	template <typename TAllocator>
14	class AllocatorOwner {
15	public:
16	AllocatorOwner() {}	4✔
17	AllocatorOwner(TAllocator a) : _allocator(a) {}	1,384✔
18
19	void* allocate(size_t size) {	1,400✔
20	return _allocator.allocate(size);	1,400✔
21	}
22
23	void deallocate(void* ptr) {	1,409✔
24	if (ptr)	1,409✔
25	_allocator.deallocate(ptr);	1,399✔
26	}	1,409✔
27
28	void* reallocate(void* ptr, size_t new_size) {	15✔
29	return _allocator.reallocate(ptr, new_size);	15✔
30	}
31
32	TAllocator& allocator() {	1✔
33	return _allocator;	1✔
34	}
35
36	private:
37	TAllocator _allocator;
38	};
39
40	template <typename TAllocator>
41	class BasicJsonDocument : AllocatorOwner<TAllocator>, public JsonDocument {
42	public:
43	explicit BasicJsonDocument(size_t capa, TAllocator alloc = TAllocator())	1,384✔
44	: AllocatorOwner<TAllocator>(alloc), JsonDocument(allocPool(capa)) {}	1,384✔
45
46	// Copy-constructor
47	BasicJsonDocument(const BasicJsonDocument& src)	6✔
48	: AllocatorOwner<TAllocator>(src), JsonDocument() {	6✔
49	copyAssignFrom(src);	6✔
50	}	6✔
51
52	// Move-constructor
53	#if ARDUINOJSON_HAS_RVALUE_REFERENCES
54	BasicJsonDocument(BasicJsonDocument&& src) : AllocatorOwner<TAllocator>(src) {
55	moveAssignFrom(src);
56	}
57	#endif
58
59	BasicJsonDocument(const JsonDocument& src) {	1✔
60	copyAssignFrom(src);	1✔
61	}	1✔
62
63	// Construct from variant, array, or object
64	template <typename T>
65	BasicJsonDocument(	2✔
66	const T& src,
67	typename enable_if<
68	is_same<T, VariantRef>::value \|\| is_same<T, VariantConstRef>::value \|\|
69	is_same<T, ArrayRef>::value \|\| is_same<T, ArrayConstRef>::value \|\|
70	is_same<T, ObjectRef>::value \|\|
71	is_same<T, ObjectConstRef>::value>::type* = 0)
72	: JsonDocument(allocPool(src.memoryUsage())) {	4✔
73	set(src);	2✔
74	}	2✔
75
76	// disambiguate
77	BasicJsonDocument(VariantRef src)	1✔
78	: JsonDocument(allocPool(src.memoryUsage())) {	2✔
79	set(src);	1✔
80	}	1✔
81
82	~BasicJsonDocument() {	1,394✔
83	freePool();	1,394✔
84	}	1,394✔
85
86	BasicJsonDocument& operator=(const BasicJsonDocument& src) {	7✔
87	copyAssignFrom(src);	7✔
88	return *this;	7✔
89	}
90
91	#if ARDUINOJSON_HAS_RVALUE_REFERENCES
92	BasicJsonDocument& operator=(BasicJsonDocument&& src) {
93	moveAssignFrom(src);
94	return *this;
95	}
96	#endif
97
98	template <typename T>
99	BasicJsonDocument& operator=(const T& src) {	11✔
100	size_t requiredSize = src.memoryUsage();	11✔
101	if (requiredSize > capacity())	11✔
102	reallocPool(requiredSize);	×
103	set(src);	11✔
104	return *this;	11✔
105	}
106
107	void shrinkToFit() {	30✔
108	ptrdiff_t bytes_reclaimed = _pool.squash();	30✔
109	if (bytes_reclaimed == 0)	30✔
110	return;	15✔
111
112	void* old_ptr = _pool.buffer();	15✔
113	void* new_ptr = this->reallocate(old_ptr, _pool.capacity());	15✔
114
115	ptrdiff_t ptr_offset =	15✔
116	static_cast<char>(new_ptr) - static_cast<char>(old_ptr);
117
118	_pool.movePointers(ptr_offset);	15✔
119	_data.movePointers(ptr_offset, ptr_offset - bytes_reclaimed);	15✔
120	}
121
122	bool garbageCollect() {	3✔
123	// make a temporary clone and move assign
124	BasicJsonDocument tmp(*this);	6✔
125	if (!tmp.capacity())	3✔
126	return false;	1✔
127	tmp.set(*this);	2✔
128	moveAssignFrom(tmp);	2✔
129	return true;	2✔
130	}
131
132	using AllocatorOwner<TAllocator>::allocator;
133
134	private:
135	MemoryPool allocPool(size_t requiredSize) {	1,400✔
136	size_t capa = addPadding(requiredSize);	1,400✔
137	return MemoryPool(reinterpret_cast<char*>(this->allocate(capa)), capa);	1,400✔
138	}
139
140	void reallocPool(size_t requiredSize) {	14✔
141	size_t capa = addPadding(requiredSize);	14✔
142	if (capa == _pool.capacity())	14✔
143	return;	1✔
144	freePool();	13✔
145	replacePool(allocPool(addPadding(requiredSize)));	13✔
146	}
147
148	void freePool() {	1,409✔
149	this->deallocate(getPool()->buffer());	1,409✔
150	}	1,409✔
151
152	void copyAssignFrom(const JsonDocument& src) {	14✔
153	reallocPool(src.capacity());	14✔
154	set(src);	14✔
155	}	14✔
156
157	void moveAssignFrom(BasicJsonDocument& src) {	2✔
158	freePool();	2✔
159	_data = src._data;	2✔
160	_pool = src._pool;	2✔
161	src._data.setNull();	2✔
162	src._pool = MemoryPool(0, 0);	2✔
163	}	2✔
164	};
165
166	} // namespace ARDUINOJSON_NAMESPACE

bblanchon / ArduinoJson / 3619649488

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