Set a value for SSDP notify interval (#7110)

* Set a value for SSDP notify interval, default to 1200 seconds.

* Changed uint8_t to uint32_t

Co-authored-by: david gauchard <gauchard@laas.fr>

Author: PA4WD

libraries/ESP8266SSDP/ESP8266SSDP.cpp

@@ -69,7 +69,7 @@ static const char _ssdp_notify_template[] PROGMEM =
 
 static const char _ssdp_packet_template[] PROGMEM =
   "%s" // _ssdp_response_template / _ssdp_notify_template
-  "CACHE-CONTROL: max-age=%u\r\n" // SSDP_INTERVAL
+  "CACHE-CONTROL: max-age=%u\r\n" // _interval
   "SERVER: Arduino/1.0 UPNP/1.1 %s/%s\r\n" // _modelName, _modelNumber
   "USN: %s\r\n" // _uuid
   "%s: %s\r\n"  // "NT" or "ST", _deviceType
@@ -130,6 +130,7 @@ SSDPClass::SSDPClass() :
   _timer(0),
   _port(80),
   _ttl(SSDP_MULTICAST_TTL),
+  _interval(SSDP_INTERVAL),
   _respondToAddr(0,0,0,0),
   _respondToPort(0),
   _pending(false),
@@ -241,7 +242,7 @@ void SSDPClass::_send(ssdp_method_t method) {
   int len = snprintf_P(buffer, sizeof(buffer),
                        _ssdp_packet_template,
                        valueBuffer,
-                       SSDP_INTERVAL,
+                       _interval,
                        _modelName,
                        _modelNumber,
                        _uuid,
@@ -428,7 +429,7 @@ void SSDPClass::_update() {
   if (_pending && (millis() - _process_time) > _delay) {
     _pending = false; _delay = 0;
     _send(NONE);
-  } else if(_notify_time == 0 || (millis() - _notify_time) > (SSDP_INTERVAL * 1000L)){
+  } else if(_notify_time == 0 || (millis() - _notify_time) > (_interval * 1000L)){
     _notify_time = millis();
     _st_is_uuid = false;
     _send(NOTIFY);
@@ -493,11 +494,14 @@ void SSDPClass::setManufacturerURL(const char *url) {
   strlcpy(_manufacturerURL, url, sizeof(_manufacturerURL));
 }
 
-
 void SSDPClass::setTTL(const uint8_t ttl) {
   _ttl = ttl;
 }
 
+void SSDPClass::setInterval(uint32_t interval) {
+  _interval = interval;
+}
+
 void SSDPClass::_onTimerStatic(SSDPClass* self) {
   self->_update();
 }

libraries/ESP8266SSDP/ESP8266SSDP.h

@@ -71,13 +71,13 @@ class SSDPClass{
     void setUUID(const String& uuid)	{ setUUID(uuid.c_str()); }
     void setUUID(const char *uuid);
 
-	  void setName(const String& name) { setName(name.c_str()); }
+    void setName(const String& name) { setName(name.c_str()); }
     void setName(const char *name);
     void setURL(const String& url) { setURL(url.c_str()); }
     void setURL(const char *url);
     void setSchemaURL(const String& url) { setSchemaURL(url.c_str()); }
     void setSchemaURL(const char *url);
-	  void setSerialNumber(const String& serialNumber) { setSerialNumber(serialNumber.c_str()); }
+    void setSerialNumber(const String& serialNumber) { setSerialNumber(serialNumber.c_str()); }
     void setSerialNumber(const char *serialNumber);
     void setSerialNumber(const uint32_t serialNumber);
     void setModelName(const String& name) { setModelName(name.c_str()); }
@@ -92,6 +92,7 @@ class SSDPClass{
     void setManufacturerURL(const char *url);
     void setHTTPPort(uint16_t port);
     void setTTL(uint8_t ttl);
+    void setInterval(uint32_t interval);
 
   protected:
     void _send(ssdp_method_t method);
@@ -104,6 +105,7 @@ class SSDPClass{
     SSDPTimer* _timer;
     uint16_t _port;
     uint8_t _ttl;
+    uint32_t _interval;
 
     IPAddress _respondToAddr;
     uint16_t  _respondToPort;