Diff: AlohaTransceiver.cpp

Revision:

33:810074d10fcf

Parent:

32:b7d87c5f647c

Child:

34:14b1472a79e4

--- a/AlohaTransceiver.cpp	Sat Sep 03 04:51:26 2016 +0000
+++ b/AlohaTransceiver.cpp	Sat Sep 03 05:01:19 2016 +0000
@@ -199,8 +199,7 @@
                         uint8_t foreign_seqid = frame->getSequenceID();
                         
                         // compare the local sequence id and foreign sequence id for specific host
-                        // if same then set the flag
-                        if (seqid[src_addr] == foreign_seqid)
+                        if (seqid[src_addr] <= foreign_seqid)
                         {
                             setAckedFlag(src_addr);
                         }
@@ -274,15 +273,19 @@
                 for (size_t i = 0; i < AlohaTxQueue.getCounter(); i++)
                 {
                     AlohaFrame *frame = AlohaTxQueue.dequeue();
-                    uint8_t type = frame->getType();
-                    
+
                     // determined by the type of the frame, only data frame need to be cleared before transmitting
-                    switch (type)
+                    switch (frame->getType())
                     {
                         // ack frame can transmit directly
                         case AlohaFrame::Aloha_ACK:
                         {
                             sendFrame(frame);
+                            
+                            // block the next transmission until previous transmission is done
+                            clearTxDoneFlag();
+                                
+                            // free memory
                             delete frame;
                             
                             break;
@@ -317,7 +320,10 @@
                         }
                         
                         default:
+                        {
+                            delete frame;
                             break;
+                        }
                     }
                 }
             }