add printf via DEBUG_PORT define see #909

.github/workflows/arduino-lint.yaml

@@ -5,6 +5,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: arduino/arduino-lint-action@v2
+      - uses: arduino/arduino-lint-action@v1
         with:
           library-manager: update

README.md

@@ -47,7 +47,6 @@ a WebSocket Server and Client for Arduino based on RFC6455.
 ### wss / SSL ###
  supported for:
  - wss client on the ESP8266
- - wss / SSL for ESP32 in client mode
  - wss / SSL is not natively supported in WebSocketsServer however it is possible to achieve secure websockets
    by running the device behind an SSL proxy. See [Nginx](examples/Nginx/esp8266.ssl.reverse.proxy.conf) for a
    sample Nginx server configuration file to enable this.

examples/esp32/WebSocketClientSocketIOack/WebSocketClientSocketIOack.ino

@@ -54,7 +54,7 @@ void socketIOEvent(socketIOmessageType_t type, uint8_t * payload, size_t length)
 
             // Message Includes a ID for a ACK (callback)
             if(id) {
-                // create JSON message for Socket.IO (ack)
+                // creat JSON message for Socket.IO (ack)
                 DynamicJsonDocument docOut(1024);
                 JsonArray array = docOut.to<JsonArray>();
 
@@ -130,11 +130,11 @@ void loop() {
     if(now - messageTimestamp > 2000) {
         messageTimestamp = now;
 
-        // create JSON message for Socket.IO (event)
+        // creat JSON message for Socket.IO (event)
         DynamicJsonDocument doc(1024);
         JsonArray array = doc.to<JsonArray>();
 
-        // add event name
+        // add evnet name
         // Hint: socket.on('event_name', ....
         array.add("event_name");
 
@@ -142,7 +142,7 @@ void loop() {
         JsonObject param1 = array.createNestedObject();
         param1["now"] = (uint32_t) now;
 
-        // JSON to String (serialization)
+        // JSON to String (serializion)
         String output;
         serializeJson(doc, output);
 

src/WebSockets.h

@@ -50,7 +50,10 @@
         DEBUG_ESP_PORT.flush();             \
     }
 #else
-// #define DEBUG_WEBSOCKETS(...) os_printf( __VA_ARGS__ )
+#ifdef DEBUG_PORT
+#define DEBUG_WEBSOCKETS(...) websocket_debug_printf(__VA_ARGS__)
+void websocket_debug_printf(const char * format, ...);
+#endif
 #endif
 #endif
 

src/debug.cpp

@@ -0,0 +1,32 @@
+
+#include "WebSockets.h"
+
+#include <stdarg.h>
+
+#ifdef DEBUG_PORT
+
+void websocket_debug_printf(const char * format, ...) {
+    va_list arg;
+    va_start(arg, format);
+    char temp[64];
+    char * buffer = temp;
+    size_t len    = vsnprintf(temp, sizeof(temp), format, arg);
+    va_end(arg);
+    if(len > sizeof(temp) - 1) {
+        buffer = new(std::nothrow) char[len + 1];
+        if(!buffer) {
+            return 0;
+        }
+        va_start(arg, format);
+        vsnprintf(buffer, len + 1, format, arg);
+        va_end(arg);
+    }
+    len = DEBUG_PORT.write((const uint8_t *)buffer, len);
+    if(buffer != temp) {
+        delete[] buffer;
+    }
+    DEBUG_PORT.flush();
+    return len;
+}
+
+#endif

travis/version.py

@@ -73,7 +73,7 @@ def get_library_json_version():
 
 def get_header_versions():
     data = {}
-    define = re.compile('^#define WEBSOCKETS_VERSION_?(.*) "?([0-9\.]*)"?$')
+    define = re.compile('^#define WEBSOCKETS_VERSION_?(.*) "?([0-9\\.]*)"?$')
     with open(f'{base_dir}/src/WebSocketsVersion.h', 'r') as f:
         for line in f:
             m = define.match(line)