Added TimeSynchronization server example.

bacnet-stack/demo/object/device-client.c

@@ -87,8 +87,13 @@ static BACNET_DATE Local_Date;  /* rely on OS, if there is one */
    BACnet UTC offset is expressed in minutes. */
 static int32_t UTC_Offset = 5 * 60;
 static bool Daylight_Savings_Status = false;    /* rely on OS */
-/* List_Of_Session_Keys */
+#if defined(BACNET_TIME_MASTER)
+static bool Align_Intervals;
+static uint32_t Interval_Minutes;
+static uint32_t Interval_Offset_Minutes;
 /* Time_Synchronization_Recipients */
+#endif
+/* List_Of_Session_Keys */
 /* Max_Master - rely on MS/TP subsystem, if there is one */
 /* Max_Info_Frames - rely on MS/TP subsystem, if there is one */
 /* Device_Address_Binding - required, but relies on binding cache */
@@ -720,6 +725,80 @@ bool Device_Daylight_Savings_Status(void)
     return Daylight_Savings_Status;
 }
 
+#if defined(BACNET_TIME_MASTER)
+/**
+ * Sets the time sync interval in minutes
+ *
+ * @param flag
+ * This property, of type BOOLEAN, specifies whether (TRUE)
+ * or not (FALSE) clock-aligned periodic time synchronization is
+ * enabled. If periodic time synchronization is enabled and the
+ * time synchronization interval is a factor of (divides without
+ * remainder) an hour or day, then the beginning of the period
+ * specified for time synchronization shall be aligned to the hour or
+ * day, respectively. If this property is present, it shall be writable.
+ */
+bool Device_Align_Intervals_Set(bool flag)
+{
+    Align_Intervals = flag;
+
+    return true;
+}
+
+bool Device_Align_Intervals(void)
+{
+    return Align_Intervals;
+}
+
+/**
+ * Sets the time sync interval in minutes
+ *
+ * @param minutes
+ * This property, of type Unsigned, specifies the periodic
+ * interval in minutes at which TimeSynchronization and
+ * UTCTimeSynchronization requests shall be sent. If this
+ * property has a value of zero, then periodic time synchronization is
+ * disabled. If this property is present, it shall be writable.
+ */
+bool Device_Time_Sync_Interval_Set(uint32_t minutes)
+{
+    Interval_Minutes = minutes;
+
+    return true;
+}
+
+uint32_t Device_Time_Sync_Interval(void)
+{
+    return Interval_Minutes;
+}
+
+/**
+ * Sets the time sync interval offset value.
+ *
+ * @param minutes
+ * This property, of type Unsigned, specifies the offset in
+ * minutes from the beginning of the period specified for time
+ * synchronization until the actual time synchronization requests
+ * are sent. The offset used shall be the value of Interval_Offset
+ * modulo the value of Time_Synchronization_Interval;
+ * e.g., if Interval_Offset has the value 31 and
+ * Time_Synchronization_Interval is 30, the offset used shall be 1.
+ * Interval_Offset shall have no effect if Align_Intervals is
+ * FALSE. If this property is present, it shall be writable.
+ */
+bool Device_Interval_Offset_Set(uint32_t minutes)
+{
+    Interval_Offset_Minutes = minutes;
+
+    return true;
+}
+
+uint32_t Device_Interval_Offset(void)
+{
+    return Interval_Offset_Minutes;
+}
+#endif
+
 /* return the length of the apdu encoded or BACNET_STATUS_ERROR for error or
    BACNET_STATUS_ABORT for abort message */
 int Device_Read_Property_Local(