WiFi library ArduinoWiFiServer update (#8238)

* ArduinoWiFiServer - check for clients in write() too

Author: JAndrassy

libraries/ESP8266WiFi/examples/PagerServer/PagerServer.ino

@@ -2,7 +2,7 @@
   Pager Server
 
   The ESP8266WiFi library's WiFiServer and WiFiServerSecure
-  work differently then WiFiServer and EthernetSever
+  work differently than WiFiServer and EthernetSever
   in Arduino networking libraries.
   This example demonstrates the ArduinoWiFiServer,
   which enhances the WiFiServer.

libraries/ESP8266WiFi/src/ArduinoWiFiServer.h

@@ -28,12 +28,12 @@
 #endif
 
 template <class TServer, class TClient>
-class ArduinoComptibleWiFiServerTemplate : public TServer {
+class ArduinoCompatibleWiFiServerTemplate : public TServer {
 public:
 
-  ArduinoComptibleWiFiServerTemplate(const IPAddress& addr, uint16_t port) : TServer(addr, port) {}
-  ArduinoComptibleWiFiServerTemplate(uint16_t port) : TServer(port) {}
-  virtual ~ArduinoComptibleWiFiServerTemplate() {}
+  ArduinoCompatibleWiFiServerTemplate(const IPAddress& addr, uint16_t port) : TServer(addr, port) {}
+  ArduinoCompatibleWiFiServerTemplate(uint16_t port) : TServer(port) {}
+  virtual ~ArduinoCompatibleWiFiServerTemplate() {}
 
   // https://www.arduino.cc/en/Reference/EthernetServerAccept
   TClient accept() {
@@ -43,12 +43,8 @@ class ArduinoComptibleWiFiServerTemplate : public TServer {
   // https://www.arduino.cc/en/Reference/WiFiServerAvailable
   TClient available() {
 
-    // update connected clients
-    for (uint8_t i = 0; i < MAX_MONITORED_CLIENTS; i++) {
-      if (!connectedClients[i]) {
-        connectedClients[i] = accept();
-      }
-    }
+    acceptClients();
+ 
     // find next client with data available
     for (uint8_t i = 0; i < MAX_MONITORED_CLIENTS; i++) {
       if (index == MAX_MONITORED_CLIENTS) {
@@ -67,6 +63,12 @@ class ArduinoComptibleWiFiServerTemplate : public TServer {
   }
 
   virtual size_t write(const uint8_t *buf, size_t size) override {
+    static uint32_t lastCheck;
+    uint32_t m = millis();
+    if (m - lastCheck > 100) {
+      lastCheck = m;
+      acceptClients();
+    }
     if (size == 0)
       return 0;
     size_t ret = 0;
@@ -127,9 +129,16 @@ class ArduinoComptibleWiFiServerTemplate : public TServer {
   TClient connectedClients[MAX_MONITORED_CLIENTS];
   uint8_t index = 0;
 
+  void acceptClients() {
+    for (uint8_t i = 0; i < MAX_MONITORED_CLIENTS; i++) {
+      if (!connectedClients[i]) {
+        connectedClients[i] = accept();
+      }
+    }
+  }
 };
 
-typedef ArduinoComptibleWiFiServerTemplate<WiFiServer, WiFiClient> ArduinoWiFiServer;
-typedef ArduinoComptibleWiFiServerTemplate<WiFiServerSecure, WiFiClientSecure> ArduinoWiFiServerSecure;
+typedef ArduinoCompatibleWiFiServerTemplate<WiFiServer, WiFiClient> ArduinoWiFiServer;
+typedef ArduinoCompatibleWiFiServerTemplate<WiFiServerSecure, WiFiClientSecure> ArduinoWiFiServerSecure;
 
 #endif