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Use only one byte for the reference counter on 8-bit platforms

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This commit is contained in:
Benoit Blanchon
2023-10-09 14:47:47 +02:00
parent 86e06c901f
commit d20e64187b
1 changed files with 6 additions and 1 deletions
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7
src/ArduinoJson/Memory/StringNode.hpp
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@ -7,6 +7,7 @@
#include <ArduinoJson/Memory/Allocator.hpp> #include <ArduinoJson/Memory/Allocator.hpp>
#include <ArduinoJson/Namespace.hpp> #include <ArduinoJson/Namespace.hpp>
#include <ArduinoJson/Polyfills/assert.hpp> #include <ArduinoJson/Polyfills/assert.hpp>
#include <ArduinoJson/Polyfills/integer.hpp>
#include <ArduinoJson/Polyfills/limits.hpp> #include <ArduinoJson/Polyfills/limits.hpp>
#include <stddef.h> // offsetof #include <stddef.h> // offsetof
@ -15,9 +16,13 @@
ARDUINOJSON_BEGIN_PRIVATE_NAMESPACE ARDUINOJSON_BEGIN_PRIVATE_NAMESPACE
struct StringNode { struct StringNode {
// Use the same type as SlotId to store the reference count
// (there can never be more references than slots)
using references_type = uint_t<ARDUINOJSON_SLOT_ID_SIZE * 8>::type;
struct StringNode* next; struct StringNode* next;
uint16_t length; uint16_t length;
uint16_t references; references_type references;
char data[1]; char data[1];
static constexpr size_t maxLength = numeric_limits<uint16_t>::highest(); static constexpr size_t maxLength = numeric_limits<uint16_t>::highest();