David Smart / Mbed 2 deprecated SSDP_Server

An example demonstrating SSDP Discovery and a companion Web Server.

Dependencies:   mbed mbed-rtos Watchdog SW_HTTPServer SW_String EthernetInterface TimeInterface SSDP

This example program provides a framework -by- example.

It makes itself discoverable to the network using SSDP. From there, it is easy to access the embedded web server to interact with the embedded node.

The example, built on the LPC1768, provides interaction to turn the LEDs on and off via a web page that is discovered using the SSDP protocol.

It also picks up time via an NTP server.

Diff: main.cpp

Revision:
9:13e4749ddfa2
Parent:
8:0b1efcef5e50
--- a/main.cpp	Sun Jan 12 03:51:53 2020 +0000
+++ b/main.cpp	Sun Jan 12 23:03:03 2020 +0000
@@ -30,7 +30,7 @@
 //
 const char * BUILD_DATE = __DATE__ " " __TIME__;
 const char * PROG_NAME = "SSDP Server";
-char * My_Name = "MBED SSDP Node";
+const char * My_Name = "MBED SSDP Node";
 const char * My_SerialNum = "0000001";
 int Server_Port = 80;
 // end public information
@@ -64,13 +64,17 @@
     wd.Configure(45);       // very generous, but this is a network appliance, so a bit less deterministic.
 
     int eRes = eth.init(); //Use DHCP
-    printf("eth.init() returned %d\r\n", eRes);
-    if (eRes < 0)
+    if (eRes < 0) {
+        printf("eth.init() returned %d, rebooting in 5 s.\r\n", eRes);
+        wait(5.0);
         mbed_reset();
+    }
     eRes = eth.connect();
-    printf("eth.connect() returned %d\r\n", eRes);
-    if (eRes < 0)
+    if (eRes < 0) {
+        printf("eth.connect() returned %d, rebooting in 5 s.\r\n", eRes);
+        wait(5.0);
         mbed_reset();
+    }
     printf("IP: %s\r\n", eth.getIPAddress());
     //Thread thr(SSDPListener, NULL, osPriorityLow);
     HTTPServer svr(Server_Port, Server_Root, 15, 30, 20, 50, &pc);
@@ -78,21 +82,29 @@
     svr.RegisterHandler("/setup.xml", Setup_xml);
     SSDP ssdp(My_Name, eth.getMACAddress(), eth.getIPAddress(), Server_Port);
 
-    ntp.set_dst("3/11,2:00","11/4,2:00");   // mm/dd,hh:mm
-    ntp.set_tzo_min(-360);
-    int res = ntp.setTime("pool.ntp.org");
+    bool setTheClock = true;    // prime it
 
     while (1) {
         wd.Service();
         svr.Poll();         // non-blocking, but also not deterministic
         Thread::yield();
         ShowSignOfLife(10);
+        if (setTheClock) {
+            setTheClock = false;
+            // Could read these from non-volatile
+            ntp.set_dst("3/11,2:00","11/4,2:00");   // mm/dd,hh:mm
+            ntp.set_tzo_min(-360);
+            int res = ntp.setTime("pool.ntp.org");
+            if (res == 0) {
+                pc.printf("Time was just set\r\n");
+            }
+        }
         static time_t tLast;
         time_t tNow = ntp.timelocal();
         if (tNow != tLast) {
-            //printf("time is %s\r\n", ntp.ctime(&tNow));
+            printf("time is %s\r\n", ntp.ctime(&tNow));
             tLast = tNow;
+            //printf("Mem: %5d, %5d %5d\n", Thread::used_stack(), Thread::max_stack(), Thread::stack_size());
         }
-        //printf("Mem: %5d, %5d %5d\n", Thread::used_stack(), Thread::max_stack(), Thread::stack_size());
     }
 }