Diff: AlohaTransceiver.cpp

Revision:

34:14b1472a79e4

Parent:

33:810074d10fcf

Child:

35:4cfad781d98b

--- a/AlohaTransceiver.cpp	Sat Sep 03 05:01:19 2016 +0000
+++ b/AlohaTransceiver.cpp	Sat Sep 03 05:39:15 2016 +0000
@@ -5,7 +5,7 @@
 #include "AlohaFrame.h"
 #include "RingBuffer.h"
 
-#define ALLOW_CALLBACK_DEBUG  0
+#define ALLOW_CALLBACK_DEBUG  1
 
 #define SET_FLAG(t, x) (t) |= 1 << (x)
 #define CLEAR_FLAG(t, x) (t) &= ~(1 << (x))
@@ -199,7 +199,7 @@
                         uint8_t foreign_seqid = frame->getSequenceID();
                         
                         // compare the local sequence id and foreign sequence id for specific host
-                        if (seqid[src_addr] <= foreign_seqid)
+                        if (seqid[src_addr] == foreign_seqid)
                         {
                             setAckedFlag(src_addr);
                         }
@@ -277,19 +277,7 @@
                     // determined by the type of the frame, only data frame need to be cleared before transmitting
                     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;
-                        }
+                        // Data frame need proper clearance
                         case AlohaFrame::Aloha_Data:
                         {
                             uint8_t dest_addr = frame->getDestinationAddress();
@@ -321,7 +309,14 @@
                         
                         default:
                         {
+                            sendFrame(frame);
+                            
+                            // block the next transmission until previous transmission is done
+                            clearTxDoneFlag();
+                                
+                            // free memory
                             delete frame;
+                            
                             break;
                         }
                     }