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Make DLMS string helpers write to buffer 

Change DlmsParser::data_to_string_ and obis_to_string_ signatures to return void and write into the provided caller buffer instead of returning std::string (avoids allocations and clarifies ownership).

Also add #include "esphome/core/application.h" in dlms_push.cpp for required declarations.
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Tomer27cz 2026-03-07 20:39:57 +01:00
parent 8fc10fb496
commit 789611a611
2 changed files with 3 additions and 2 deletions
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4
components/dlms_push/dlms_parser.h
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@ -113,8 +113,8 @@ class DlmsParser {
void emit_object_(const AxdrDescriptorPattern &pat, const AxdrCaptures &c); void emit_object_(const AxdrDescriptorPattern &pat, const AxdrCaptures &c);
float data_as_float_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len); float data_as_float_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len);
std::string data_to_string_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len, char *buffer, size_t max_len); void data_to_string_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len, char *buffer, size_t max_len);
std::string obis_to_string_(const uint8_t *obis, char *buffer, size_t max_len); void obis_to_string_(const uint8_t *obis, char *buffer, size_t max_len);
const char *dlms_data_type_to_string_(DlmsDataType vt); const char *dlms_data_type_to_string_(DlmsDataType vt);
const uint8_t *buffer_{nullptr}; const uint8_t *buffer_{nullptr};

1
components/dlms_push/dlms_push.cpp
View File

@ -2,6 +2,7 @@
#include "dlms_parser.h" #include "dlms_parser.h"
#include "esphome/core/log.h" #include "esphome/core/log.h"
#include "esphome/core/application.h"
#include "esphome/core/helpers.h" #include "esphome/core/helpers.h"
namespace esphome { namespace esphome {