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[bthome_mithermometer] Reduce heap allocations with stack-based string formatting

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This commit is contained in:
J. Nick Koston
2026-01-05 09:04:12 -10:00
parent 8092215de1
commit 6f1185011f
1 changed files with 4 additions and 3 deletions
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esphome/components/bthome_mithermometer/bthome_ble.cpp
+4 -3
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@@ -4,6 +4,7 @@
#include "esphome/core/log.h"
#include <array>
#include <span>
#ifdef USE_ESP32
@@ -12,14 +13,14 @@ namespace bthome_mithermometer {
static const char *const TAG = "bthome_mithermometer";
static const char *format_mac_address(char *buffer, uint64_t address) {
static const char *format_mac_address(std::span<char, MAC_ADDRESS_PRETTY_BUFFER_SIZE> buffer, uint64_t address) {
std::array<uint8_t, MAC_ADDRESS_SIZE> mac{};
for (size_t i = 0; i < MAC_ADDRESS_SIZE; i++) {
mac[i] = (address >> ((MAC_ADDRESS_SIZE - 1 - i) * 8)) & 0xFF;
}
format_mac_addr_upper(mac.data(), buffer);
return buffer;
format_mac_addr_upper(mac.data(), buffer.data());
return buffer.data();
}
static bool get_bthome_value_length(uint8_t obj_type, size_t &value_length) {