thooge/esp32-nmea2000-obp60
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GwWifi race condition safe, PageNavigation check the Wifi connection befor using

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This commit is contained in:
Norbert Walter
2026-02-15 16:11:19 +00:00
parent 43b0a780d5
commit 00b06f458b
3 changed files with 115 additions and 8 deletions
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39
lib/obp60task/PageNavigation.cpp
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@@ -4,9 +4,13 @@
#include "OBP60Extensions.h"
#include "NetworkClient.h" // Network connection
#include "ImageDecoder.h" // Image decoder for navigation map
#include "GWWifi.h" // WiFi management (thread-safe)
#include "Logo_OBP_400x300_sw.h"
// Extern declaration of global WiFi instance
extern GwWifi gwWifi;
// Defines for reading of navigation map
#define JSON_BUFFER 30000 // Max buffer size for JSON content (30 kB picture + values)
NetworkClient net(JSON_BUFFER); // Define network client
@@ -25,6 +29,7 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
int imageBackupHeight = 0;
size_t imageBackupSize = 0;
bool hasImageBackup = false;
static bool wifiConnectRequested; // Track if WiFi connection was requested
public:
PageNavigation(CommonData &common){
@@ -55,12 +60,15 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
}
return 0; // Commit the key
}
// Code for zoom -
// Code for zoom +
if(key == 2){
zoom ++; // Zoom +
if(zoom >17){
zoom = 17;
}
// Optional: Versuche WiFi-Verbindung nach Zoom-Änderung
// Dies ermöglicht eine neue Kartendarstellung
gwWifi.connectClientAsync();
return 0; // Commit the key
}
if(key == 5){
@@ -95,6 +103,13 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
zoom = zoomLevel; // Over write zoom level with setup value
showValues = showValuesMap; // Over write showValues with setup value
firstRun = false; // Restet variable
// Versuche beim ersten Laden eine WiFi-Verbindung herzustellen (non-blocking)
// Dies ist thread-safe und blockiert das UI nicht
if (!gwWifi.clientConnected()) {
LOG_DEBUG(GwLog::LOG, "PageNavigation: Initiating WiFi connection for map download");
gwWifi.connectClientAsync();
}
}
// Local variables
@@ -344,6 +359,16 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
// Load navigation map
//***********************************************************
// Prüfe WiFi-Verbindung (Thread-Safe)
// Diese Methode ist synchronisiert und blockiert maximal 1 Sekunde
bool wifiConnected = gwWifi.clientConnected();
if (!wifiConnected && !wifiConnectRequested) {
LOG_DEBUG(GwLog::LOG, "PageNavigation: WiFi not connected, attempting async connect");
gwWifi.connectClientAsync();
wifiConnectRequested = true;
}
// URL to OBP Maps Converter
// For more details see: https://github.com/norbert-walter/maps-converter
String url = String("http://") + server + ":" + port + // OBP Server
@@ -375,7 +400,8 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
getdisplay().setTextColor(commonData->fgcolor);
// If a network connection to URL then load the navigation map
if (net.fetchAndDecompressJson(url)) {
if (wifiConnected && net.fetchAndDecompressJson(url)) {
wifiConnectRequested = false; // Reset flag after successful connection
auto& json = net.json(); // Extract JSON content
int numPix = json["number_pixels"] | 0; // Read number of pixels
@@ -442,6 +468,12 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
}
lostCounter++; // Increment lost counter
// Nur einmal pro Sekunde einen neuen Verbindungsversuch machen
if (!wifiConnectRequested) {
gwWifi.connectClientAsync();
wifiConnectRequested = true;
}
}
@@ -488,6 +520,9 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
};
};
// Initialize static member variable
bool PageNavigation::wifiConnectRequested = false;
static Page *createPage(CommonData &common){
return new PageNavigation(common);
}/**