update protocol to add sizes

protocol.h

@@ -1,10 +1,12 @@
 #ifndef _PROTOCOL_H_
 	#define _PROTOCOL_H_
 
-	#define DISCOVER_TTL 10000
-	#define DISCOVER_SIZE sizeof(int)*2
+	#include <Wire.h>
+
+	#define DISCOVER_TTL     10000
 
 	// discover request (c.f. class node)
+	#define DISCOVER_SIZE    sizeof(uint8_t)*3 + 1
 	struct discover {
 		uint8_t opcode; // opcode = 0
 		uint8_t wave;   // id de la wave
@@ -12,6 +14,8 @@
 	};
 
 
+	#define MESSAGE_MIN_SIZE sizeof(uint8_t)*4 + 1
+	#define MESSAGE_MAX_SIZE sizeof(uint8_t)*4+sizeof(uint8_t)*255 + 1
 	struct message {
 		uint8_t opcode; // opcode = 1
 		uint8_t dist;   // distance of the last sender
@@ -20,33 +24,35 @@
 		uint8_t data[]; // actual message
 	};
 
+
+	#define PROTO_SIZE       MESSAGE_MAX_SIZE
 	// A <node> object is held by each node which values are determined thanks
 	// to the DISCOVER requests it receives; each node broadcasts a DISCOVER
 	// request every DISCOVER_TTL milliseconds
-    class node{
-		private:
-			// unique id of the node : MAC ADDR
-			int id;
+    // class node{
+	// 	private:
+	// 		// unique id of the node : MAC ADDR
+	// 		int id;
 
-			// last received wave id
-			uint8_t last_wave;
+	// 		// last received wave id
+	// 		uint8_t last_wave;
 
-			// relative node-distance to the well
-			// WELL                  : dist = 0
-			// NODE1 can reach WELL  : dist = 1
-			// NODE2 can reach NODE1 : dist = 2
-			// and so on...
-			uint8_t dist;
+	// 		// relative node-distance to the well
+	// 		// WELL                  : dist = 0
+	// 		// NODE1 can reach WELL  : dist = 1
+	// 		// NODE2 can reach NODE1 : dist = 2
+	// 		// and so on...
+	// 		uint8_t dist;
 
-		public:
+	// 	public:
 
-			// send a discover request
-			bool discover();
+	// 		// send a discover request
+	// 		bool discover();
 
-			// update the current node according to a (received)
-			// discover request
-			bool update(struct discover dsc);
-    };
+	// 		// update the current node according to a (received)
+	// 		// discover request
+	// 		bool update(struct discover dsc);
+    // };
 
 
 #endif