63 lines
1.0 KiB
C++
63 lines
1.0 KiB
C++
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2020
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// MIT License
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#pragma once
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#include <ArduinoJson/Memory/MemoryPool.hpp>
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namespace ARDUINOJSON_NAMESPACE {
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class StringCopier {
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public:
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StringCopier(MemoryPool& pool) : _pool(&pool) {}
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void startString() {
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_pool->getFreeZone(&_ptr, &_capacity);
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_size = 0;
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}
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const char* save() {
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ARDUINOJSON_ASSERT(_ptr);
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return _pool->saveStringFromFreeZone(_size);
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}
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void append(const char* s) {
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while (*s) append(*s++);
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}
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void append(const char* s, size_t n) {
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while (n-- > 0) append(*s++);
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}
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void append(char c) {
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if (!_ptr)
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return;
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if (_size >= _capacity) {
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_ptr = 0;
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_pool->markAsOverflowed();
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return;
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}
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_ptr[_size++] = c;
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}
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bool isValid() {
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return _ptr != 0;
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}
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const char* c_str() {
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return _ptr;
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}
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typedef storage_policies::store_by_copy storage_policy;
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private:
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MemoryPool* _pool;
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char* _ptr;
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size_t _size;
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size_t _capacity;
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};
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} // namespace ARDUINOJSON_NAMESPACE
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