esphome::json::JsonArena< N > Class Template Reference

Bump allocator over a fixed buffer for a document built and serialized in one scope. More...

#include <json_util.h>

Inheritance diagram for esphome::json::JsonArena< N >:

Public Member Functions
	JsonArena (ArduinoJson::Allocator *fallback=heap_json_allocator())
	JsonArena (const JsonArena &)=delete
JsonArena &	operator= (const JsonArena &)=delete
void *	allocate (size_t size) override
void	deallocate (void *ptr) override
void *	reallocate (void *ptr, size_t new_size) override
size_t	used () const
	Bytes of the buffer handed out so far.

Detailed Description

template<size_t N>
class esphome::json::JsonArena< N >

Bump allocator over a fixed buffer for a document built and serialized in one scope.

What the buffer cannot hold goes to the heap allocator; nothing is freed until the arena goes away.

Definition at line 182 of file json_util.h.

Constructor & Destructor Documentation

JsonArena() [1/2]

template<size_t N>

esphome::json::JsonArena< N >::JsonArena ( ArduinoJson::Allocator * fallback = heap_json_allocator() )

inlineexplicit

Definition at line 185 of file json_util.h.

JsonArena() [2/2]

template<size_t N>

esphome::json::JsonArena< N >::JsonArena ( const JsonArena< N > & )

delete

Member Function Documentation

allocate()

template<size_t N>

void * esphome::json::JsonArena< N >::allocate ( size_t size )

inlineoverride

Definition at line 190 of file json_util.h.

deallocate()

template<size_t N>

void esphome::json::JsonArena< N >::deallocate ( void * ptr )

inlineoverride

Definition at line 202 of file json_util.h.

operator=()

template<size_t N>

JsonArena & esphome::json::JsonArena< N >::operator= ( const JsonArena< N > & )

delete

reallocate()

template<size_t N>

void * esphome::json::JsonArena< N >::reallocate ( void * ptr, size_t new_size )

inlineoverride

Definition at line 207 of file json_util.h.

used()

template<size_t N>

size_t esphome::json::JsonArena< N >::used ( ) const

inline

Bytes of the buffer handed out so far.

Definition at line 231 of file json_util.h.

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The documentation for this class was generated from the following file:

• esphome/components/json/json_util.h