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fix: memory leaks and uninitialized pointers

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- Initialize _mqtt_bridge and _web_config to nullptr in declarations
- Add destructor to clean up dynamically allocated objects
- Initialize _last_mqtt_stats to 0 in declaration
- Fix WiFiState/NetworkState enum mismatch in getWiFiStatus()

While embedded firmware typically runs forever (making these not
critical leaks), proper cleanup enables testing and prevents
static analyzer warnings.
This commit is contained in:
Ryan Malloy 2026-02-05 09:59:49 -07:00
parent 7516c808a7
commit 669ef89a66
2 changed files with 24 additions and 8 deletions
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21
src/MyMesh.cpp
View File

@ -733,6 +733,21 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
_prefs.adc_multiplier = 0.0f; // 0.0f means use default board multiplier
}
MyMesh::~MyMesh() {
// Clean up dynamically allocated resources
#ifdef WITH_MQTT
delete _web_config;
_web_config = nullptr;
delete _mqtt_bridge;
_mqtt_bridge = nullptr;
#endif
#ifdef WITH_ETHERNET
delete _mqtt_bridge;
_mqtt_bridge = nullptr;
#endif
}
void MyMesh::begin(FILESYSTEM *fs) {
mesh::Mesh::begin();
_fs = fs;
@ -1289,9 +1304,9 @@ const char* MyMesh::getMQTTStatus() const {
const char* MyMesh::getWiFiStatus() const {
switch (_wifi_mgr.getState()) {
case WiFiState::CONNECTED: return "connected";
case WiFiState::CONNECTING: return "connecting";
case WiFiState::AP_MODE: return "ap_mode";
case NetworkState::CONNECTED: return "connected";
case NetworkState::CONNECTING: return "connecting";
case NetworkState::AP_MODE: return "ap_mode";
default: return "disconnected";
}
}

11
src/MyMesh.h
View File

@ -125,21 +125,21 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
#ifdef WITH_MQTT
WiFiManager _wifi_mgr;
MQTTBridge* _mqtt_bridge;
WebConfig* _web_config;
MQTTBridge* _mqtt_bridge = nullptr;
WebConfig* _web_config = nullptr;
WiFiConfig _wifi_config;
MQTTConfig _mqtt_config;
unsigned long _last_mqtt_stats;
unsigned long _last_mqtt_stats = 0;
void initMQTT();
#endif
#ifdef WITH_ETHERNET
EthernetManager _eth_mgr;
MQTTBridge* _mqtt_bridge;
MQTTBridge* _mqtt_bridge = nullptr;
MQTTConfig _mqtt_config;
EthernetConfig _eth_config;
unsigned long _last_mqtt_stats;
unsigned long _last_mqtt_stats = 0;
void initEthernet();
#endif
@ -196,6 +196,7 @@ protected:
public:
MyMesh(mesh::MainBoard& board, mesh::Radio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables);
~MyMesh(); // Clean up dynamically allocated resources
void begin(FILESYSTEM* fs);