David Smart / TimeInterface

A time interface class. This class replicates the normal time functions, but goes a couple of steps further. mbed library 82 and prior has a defective gmtime function. Also, this class enables access to setting the time, and adjusting the accuracy of the RTC.

Dependencies:   CalendarPage

Dependents:   CI-data-logger-server WattEye X10Svr SSDP_Server

Diff: TimeInterface.cpp

Revision:
21:f3818e2e0370
Parent:
20:5ca2c94d46b8
Child:
23:a89b319b552c
--- a/TimeInterface.cpp	Mon Nov 20 17:09:48 2017 +0000
+++ b/TimeInterface.cpp	Tue Nov 21 17:04:12 2017 +0000
@@ -44,18 +44,23 @@
 
 NTPResult TimeInterface::setTime(const char* host, uint16_t port, uint32_t timeout)
 {
-    NTPClient ntp(m_net);
     NTPResult res;
-    // int16_t tzomin = get_tzo_min();
-    INFO("setTime(%s, %d, %d)\r\n", host, port, timeout);
-    res = ntp.setTime(host, port, timeout);
-    INFO("  ret: %d\r\n", res);
-    if (res == NTP_OK) {
-        // if the time was fetched successfully, then
-        // let's save the time last set with the local tzo applied
-        // and this saves the last time set for later precision
-        // tuning.
-        set_time(std::time(NULL));
+    
+    if (m_net) {
+        NTPClient ntp(m_net);
+        // int16_t tzomin = get_tzo_min();
+        INFO("setTime(%s, %d, %d)\r\n", host, port, timeout);
+        res = ntp.setTime(host, port, timeout);
+        INFO("  ret: %d\r\n", res);
+        if (res == NTP_OK) {
+            // if the time was fetched successfully, then
+            // let's save the time last set with the local tzo applied
+            // and this saves the last time set for later precision
+            // tuning.
+            set_time(std::time(NULL));
+        }
+    } else {
+        res = NTP_CONN;
     }
     return res;
 }