Revision 6:92ddc620a78f, committed 2014-12-15

Comitter:

jakehodges

Date:

Mon Dec 15 15:02:43 2014 +0000

Parent:

4:0bab12a0cc9a

Child:

7:5ae1d99d2b69

Commit message:

Implement message queue to deal with xbee sleep cycle

Changed in this revision

--- a/main.cpp	Mon Dec 15 12:50:26 2014 +0000
+++ b/main.cpp	Mon Dec 15 15:02:43 2014 +0000
@@ -23,6 +23,8 @@
 snail xbee = snail();
 Ticker networkParametersTimeout;
 
+queue<snail::sensordata> messageQueue;
+
 void handleJoinNetworkReply(snail::message& message)
 {
     pc.printf("[MAIN] Got join network reply...\r\n");
@@ -204,8 +206,19 @@
         while(1)
         {
             xbee.processIncomingData();
-            //TODO: if xbee interrupt has woken us up
-                //transmit 10 latest readings
+            
+            //TODO: if message queue exceeds MAX_QUEUE SIZE, write older readings to SD card.
+            
+            //if xbee is awake send contents of message queue
+            if (xbee.isCTS())
+            {
+                while(!messageQueue.empty())
+                {
+                    snail::sensordata message = messageQueue.front();
+                    xbee.send(message, sizeof(message));
+                    messageQueue.pop();
+                }
+            }
             
             //check if it's time to poll
             if (time(NULL) - lastPollTime > pollInterval)
@@ -238,8 +251,7 @@
                 memcpy(readings, readings_str.c_str(), sizeof(readings));
                 
                 snail::sensordata message(baseNodeAddress, data.type, data.type, time(NULL), readings, data.readings.size());
-                
-                xbee.send(message, sizeof(message));
+                messageQueue.push(message);
                 
                 //log
                 //sd.write(static_cast<long int>(time(NULL)), data);

--- a/snail.lib	Mon Dec 15 12:50:26 2014 +0000
+++ b/snail.lib	Mon Dec 15 15:02:43 2014 +0000
@@ -1,1 +1,1 @@
-http://developer.mbed.org/users/Trumple/code/snail/#04fc42ae9210
+http://developer.mbed.org/users/Trumple/code/snail/#73668097572a