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* Bug fix: hasName(), missing return :-(

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* refactored methods to AdvertDataHelper.cpp
This commit is contained in:
Scott Powell 2025-01-24 19:45:45 +11:00
parent 068aeee87f
commit e78aa66d57
2 changed files with 59 additions and 52 deletions
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53
src/helpers/AdvertDataHelpers.cpp Normal file
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@ -0,0 +1,53 @@
#include <helpers/AdvertDataHelpers.h>
uint8_t AdvertDataBuilder::encodeTo(uint8_t app_data[]) {
app_data[0] = _type;
int i = 1;
if (!(_lat == 0 && _lon == 0)) {
app_data[0] |= ADV_LATLON_MASK;
memcpy(&app_data[i], &_lat, 4); i += 4;
memcpy(&app_data[i], &_lon, 4); i += 4;
}
// TODO: BATTERY encoding
// TODO: TEMPERATURE encoding
if (_name && *_name != 0) {
app_data[0] |= ADV_NAME_MASK;
const char* sp = _name;
while (*sp && i < MAX_ADVERT_DATA_SIZE) {
app_data[i++] = *sp++;
}
}
return i;
}
AdvertDataParser::AdvertDataParser(const uint8_t app_data[], uint8_t app_data_len) {
_name[0] = 0;
_lat = _lon = 0;
_flags = app_data[0];
_valid = false;
int i = 1;
if (_flags & ADV_LATLON_MASK) {
memcpy(&_lat, &app_data[i], 4); i += 4;
memcpy(&_lon, &app_data[i], 4); i += 4;
}
if (_flags & ADV_BATTERY_MASK) {
/* TODO: somewhere to store battery volts? */ i += 2;
}
if (_flags & ADV_TEMPERATURE_MASK) {
/* TODO: somewhere to store temperature? */ i += 2;
}
if (app_data_len >= i) {
int nlen = 0;
if (_flags & ADV_NAME_MASK) {
nlen = app_data_len - i; // remainder of app_data
}
if (nlen > 0) {
memcpy(_name, &app_data[i], nlen);
_name[nlen] = 0; // set null terminator
MESH_DEBUG_PRINTLN("AdvertDataParser: _flags=%u, _name=%s", (uint32_t)_flags, _name);
}
_valid = true;
}
}

58
src/helpers/AdvertDataHelpers.h
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@ -2,11 +2,12 @@
#include <stddef.h>
#include <stdint.h>
#include <Mesh.h>
#define ADV_TYPE_NONE 0 // unknown
#define ADV_TYPE_NONE 0
#define ADV_TYPE_CHAT 1
#define ADV_TYPE_REPEATER 2
#define ADV_TYPE_ROOM 3 // New kid on the block!
#define ADV_TYPE_ROOM 3
//FUTURE: 4..15
#define ADV_LATLON_MASK 0x10
@ -29,25 +30,7 @@ public:
* \param app_data dest array, must be MAX_ADVERT_DATA_SIZE
* \returns the encoded length in bytes
*/
uint8_t encodeTo(uint8_t app_data[]) {
app_data[0] = _type;
int i = 1;
if (!(_lat == 0 && _lon == 0)) {
app_data[0] |= ADV_LATLON_MASK;
memcpy(&app_data[i], &_lat, 4); i += 4;
memcpy(&app_data[i], &_lon, 4); i += 4;
}
// TODO: BATTERY encoding
// TODO: TEMPERATURE encoding
if (_name && *_name != 0) {
app_data[0] |= ADV_NAME_MASK;
const char* sp = _name;
while (*sp && i < MAX_ADVERT_DATA_SIZE) {
app_data[i++] = *sp++;
}
}
return i;
}
uint8_t encodeTo(uint8_t app_data[]);
};
class AdvertDataParser {
@ -56,41 +39,12 @@ class AdvertDataParser {
char _name[MAX_ADVERT_DATA_SIZE];
int32_t _lat, _lon;
public:
AdvertDataParser(const uint8_t app_data[], uint8_t app_data_len) {
_name[0] = 0;
_lat = _lon = 0;
_flags = app_data[0];
_valid = false;
int i = 1;
if (_flags & ADV_LATLON_MASK) {
memcpy(&_lat, &app_data[i], 4); i += 4;
memcpy(&_lon, &app_data[i], 4); i += 4;
}
if (_flags & ADV_BATTERY_MASK) {
/* TODO: somewhere to store battery volts? */ i += 2;
}
if (_flags & ADV_TEMPERATURE_MASK) {
/* TODO: somewhere to store temperature? */ i += 2;
}
if (app_data_len >= i) {
int nlen = 0;
if (_flags & ADV_NAME_MASK) {
nlen = app_data_len - i; // remainder of app_data
}
if (nlen > 0) {
memcpy(_name, &app_data[i], nlen);
_name[nlen] = 0; // set null terminator
}
_valid = true;
}
}
AdvertDataParser(const uint8_t app_data[], uint8_t app_data_len);
bool isValid() const { return _valid; }
uint8_t getType() const { return _flags & 0x0F; }
bool hasName() const { _name[0] != 0; }
bool hasName() const { return _name[0] != 0; }
const char* getName() const { return _name; }
bool hasLatLon() const { return !(_lat == 0 && _lon == 0); }