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[esp8266] Use SmallBufferWithHeapFallback in preferences (#13397)

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This commit is contained in:
J. Nick Koston
2026-01-21 18:36:12 -10:00
committed by GitHub
parent 99aa83564e
commit a9ce3df04c
1 changed files with 4 additions and 21 deletions
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25
esphome/components/esp8266/preferences.cpp
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@@ -12,7 +12,6 @@ extern "C" {
#include "preferences.h"
#include <cstring>
#include <memory>
namespace esphome::esp8266 {
@@ -143,16 +142,8 @@ class ESP8266PreferenceBackend : public ESPPreferenceBackend {
return false;
const size_t buffer_size = static_cast<size_t>(this->length_words) + 1;
uint32_t stack_buffer[PREF_BUFFER_WORDS];
std::unique_ptr<uint32_t[]> heap_buffer;
uint32_t *buffer;
if (buffer_size <= PREF_BUFFER_WORDS) {
buffer = stack_buffer;
} else {
heap_buffer = make_unique<uint32_t[]>(buffer_size);
buffer = heap_buffer.get();
}
SmallBufferWithHeapFallback<PREF_BUFFER_WORDS, uint32_t> buffer_alloc(buffer_size);
uint32_t *buffer = buffer_alloc.get();
memset(buffer, 0, buffer_size * sizeof(uint32_t));
memcpy(buffer, data, len);
@@ -167,16 +158,8 @@ class ESP8266PreferenceBackend : public ESPPreferenceBackend {
return false;
const size_t buffer_size = static_cast<size_t>(this->length_words) + 1;
uint32_t stack_buffer[PREF_BUFFER_WORDS];
std::unique_ptr<uint32_t[]> heap_buffer;
uint32_t *buffer;
if (buffer_size <= PREF_BUFFER_WORDS) {
buffer = stack_buffer;
} else {
heap_buffer = make_unique<uint32_t[]>(buffer_size);
buffer = heap_buffer.get();
}
SmallBufferWithHeapFallback<PREF_BUFFER_WORDS, uint32_t> buffer_alloc(buffer_size);
uint32_t *buffer = buffer_alloc.get();
bool ret = this->in_flash ? load_from_flash(this->offset, buffer, buffer_size)
: load_from_rtc(this->offset, buffer, buffer_size);