Sep 29, 2021 · Sep 20, 2021 · Sep 29, 2021
diff --git a/cores/esp8266/HardwareSerial.h b/cores/esp8266/HardwareSerial.h
    {
        return static_cast<int>(uart_tx_free(_uart));
    }
    void flush(void) override;
    void flush(void) override; // wait for all outgoing characters to be sent, output buffer is empty after this call
    size_t write(uint8_t c) override
    {
        return uart_write_char(_uart, c);
diff --git a/cores/esp8266/Print.h b/cores/esp8266/Print.h
        size_t println(const Printable&);
        size_t println(void);

        virtual void flush() { /* Empty implementation for backward compatibility */ }
        // flush():
        // Empty implementation by default in Print::
        // should wait for all outgoing characters to be sent, output buffer is empty after this call
        virtual void flush() { }

        // by default write timeout is possible (outgoing data from network,serial..)
        // (children can override to false (like String))
diff --git a/libraries/ESP8266WiFi/src/WiFiClient.h b/libraries/ESP8266WiFi/src/WiFiClient.h
  size_t peekBytes(char *buffer, size_t length) {
    return peekBytes((uint8_t *) buffer, length);
  }
  virtual void flush() override { (void)flush(0); }
  virtual void flush() override { (void)flush(0); } // wait for all outgoing characters to be sent, output buffer should be empty after this call
  virtual void stop() override { (void)stop(0); }
  bool flush(unsigned int maxWaitMs);
  bool stop(unsigned int maxWaitMs);
diff --git a/libraries/ESP8266WiFi/src/WiFiUdp.h b/libraries/ESP8266WiFi/src/WiFiUdp.h
 intread(char* buffer,size_t len)override {returnread((unsignedchar*)buffer, len); };
 // Return the next byte from the current packet without moving on to the next byte
 intpeek()override;
 voidflush()override;//Finish reading the current packet
 voidflush()override;//wait for all outgoing characters to be sent, output buffer is empty after this call

 // Return the IP address of the host who sent the current incoming packet
  IPAddressremoteIP()override;
Original file line number	Diff line number	Diff line change
Expand Up		@@ -183,7 +183,7 @@ class HardwareSerial: public Stream
		{
		return static_cast<int>(uart_tx_free(_uart));
		}
		void flush(void) override;
		void flush(void) override; // wait for all outgoing characters to be sent, output buffer is empty after this call
		size_t write(uint8_t c) override
		{
		return uart_write_char(_uart, c);
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Original file line number	Diff line number	Diff line change
Expand Up		@@ -110,7 +110,10 @@ class Print {
		size_t println(const Printable&);
		size_t println(void);

		virtual void flush() { /* Empty implementation for backward compatibility */ }
		// flush():
		// Empty implementation by default in Print::
		// should wait for all outgoing characters to be sent, output buffer is empty after this call
		virtual void flush() { }

		// by default write timeout is possible (outgoing data from network,serial..)
		// (children can override to false (like String))
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Original file line number	Diff line number	Diff line change
Expand Up		@@ -72,7 +72,7 @@ class WiFiClient : public Client, public SList<WiFiClient> {
		size_t peekBytes(char *buffer, size_t length) {
		return peekBytes((uint8_t *) buffer, length);
		}
		virtual void flush() override { (void)flush(0); }
		virtual void flush() override { (void)flush(0); } // wait for all outgoing characters to be sent, output buffer should be empty after this call
		virtual void stop() override { (void)stop(0); }
		bool flush(unsigned int maxWaitMs);
		bool stop(unsigned int maxWaitMs);
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Original file line number	Diff line number	Diff line change
Expand Up		@@ -92,7 +92,7 @@ class WiFiUDP : public UDP, public SList<WiFiUDP> {
		intread(char* buffer,size_t len)override {returnread((unsignedchar*)buffer, len); };
		// Return the next byte from the current packet without moving on to the next byte
		intpeek()override;
		voidflush()override;//Finish reading the current packet
		voidflush()override;//wait for all outgoing characters to be sent, output buffer is empty after this call

		// Return the IP address of the host who sent the current incoming packet
		IPAddressremoteIP()override;
Expand Down