Fix hangup on no internet

2025-09-10 22:11:15 +02:00
parent 34d56c12a8
commit 20eb79ec30
16 changed files with 1272 additions and 21 deletions
--- a/lib/ESP32Ping/ESP32Ping.cpp
+++ b/lib/ESP32Ping/ESP32Ping.cpp
@@ -0,0 +1,115 @@
+/*
+  ESP32Ping - Ping library for ESP32
+  Copyright (c) 2018 Marian Craciunescu. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include "ESP32Ping.h"
+
+
+extern "C" void esp_schedule(void) {};
+extern "C" void esp_yield(void) {};
+
+PingClass::PingClass() {}
+
+bool PingClass::ping(IPAddress dest, byte count) {
+    _expected_count = count;
+    _errors = 0;
+    _success = 0;
+
+    _avg_time = 0;
+
+    memset(&_options, 0, sizeof(struct ping_option));
+
+    // Repeat count (how many time send a ping message to destination)
+    _options.count = count;
+    // Time interval between two ping (seconds??)
+    _options.coarse_time = 1;
+    // Destination machine
+    _options.ip = dest;
+
+    // Callbacks
+    _options.recv_function = reinterpret_cast<ping_recv_function>(&PingClass::_ping_recv_cb);
+    _options.sent_function = NULL; //reinterpret_cast<ping_sent_function>(&_ping_sent_cb);
+
+    
+    // Suspend till the process end
+    esp_yield(); // ????????? Where should this be placed?
+    
+    // Let's go!
+    ping_start(&_options); // Here we do all the work
+
+    // Returns true if at least 1 ping had a pong response 
+    return (_success > 0); //_success variable is changed by the callback function
+}
+
+bool PingClass::ping(const char *host, byte count) {
+    IPAddress remote_addr;
+
+    if (Network.hostByName(host, remote_addr))
+        return ping(remote_addr, count);
+
+    return false;
+}
+
+float PingClass::averageTime() {
+    return _avg_time;
+}
+
+void PingClass::_ping_recv_cb(void *opt, void *resp) {
+    // Cast the parameters to get some usable info
+    ping_resp *ping_resp = reinterpret_cast<struct ping_resp *>(resp);
+    //ping_option* ping_opt  = reinterpret_cast<struct ping_option*>(opt);
+
+    // Error or success?
+    _errors = ping_resp->timeout_count;
+    _success = ping_resp->total_count - ping_resp->timeout_count;
+    _avg_time = ping_resp->resp_time;
+    
+
+    // Some debug info
+    DEBUG_PING(
+            "DEBUG: ping reply\n"
+                    "\ttotal_count = %d \n"
+                    "\tresp_time = %f ms\n"
+                    "\tseqno = %d \n"
+                    "\ttimeout_count = %d \n"
+                    "\tbytes = %d \n"
+                    "\ttotal_bytes = %d \n"
+                    "\ttotal_time = %f s\n"
+                    "\tping_err = %d \n",
+            ping_resp->total_count, ping_resp->resp_time, ping_resp->seqno,
+            ping_resp->timeout_count, ping_resp->bytes, ping_resp->total_bytes,
+            ping_resp->total_time, ping_resp->ping_err
+    );
+
+    // Is it time to end?
+    DEBUG_PING("Avg resp time %f ms\n", _avg_time);
+    
+    // Done, return to main functiom
+    esp_schedule();
+    
+    // just a check ...
+    if (_success + _errors != _expected_count) {
+        DEBUG_PING("Something went wrong: _success=%d and _errors=%d do not sum up to _expected_count=%d\n",_success, _errors, _expected_count );
+    }
+}
+
+byte PingClass::_expected_count = 0;
+byte PingClass::_errors = 0;
+byte PingClass::_success = 0;
+float PingClass::_avg_time = 0;
+
+PingClass Ping;