From f922c0b92ee338130a7bcb5124cba2f84ec053aa Mon Sep 17 00:00:00 2001
From: glenux <glenux@695d4485-9104-0410-b4fd-fcee070192d3>
Date: Sat, 4 Mar 2006 14:31:32 +0000
Subject: [PATCH]

---
 doc/my-rfc.txt        |  5 +++
 src/lowreceiver_cb.cc | 95 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)
 create mode 100644 src/lowreceiver_cb.cc

diff --git a/doc/my-rfc.txt b/doc/my-rfc.txt
index 511b0ea..189dfe7 100644
--- a/doc/my-rfc.txt
+++ b/doc/my-rfc.txt
@@ -79,3 +79,8 @@ Message_data :
 ~~~~~~~~~~~~~~ 
     array of unsigned shorts (16 bits * Message_size)
 	
+
+Notes:
+~~~~~~
+	Timestamps start at time = 0
+	Site indexes start at index = 1
diff --git a/src/lowreceiver_cb.cc b/src/lowreceiver_cb.cc
new file mode 100644
index 0000000..cc34028
--- /dev/null
+++ b/src/lowreceiver_cb.cc
@@ -0,0 +1,95 @@
+
+#include "lowreceiver.h"
+#include "messagecell_ab.h"
+
+
+void LowReceiver::manage_cbcast(Message * mesg) {
+	static std::list<MessageCellAb *> fifo_get;
+	static std::list<MessageCellAb *> fifo_send;
+
+	std::list<MessageCellAb *>::iterator iter;
+	printf("LowReceiver::manage_cbcast -- init\n");
+
+	// identifiant = horloge + id_site_emeteur
+	bool iAmTheEmitter = false;
+	bool firstSeenMessage = true;
+
+	if (mesg->getStamp().getIndex() == _group.getIndex()){
+		iAmTheEmitter = true;
+	}
+
+	if (iAmTheEmitter){
+		printf("LowReceiver::manage_cbcast - Received my own message \n");
+		//on faire la gestion du cbcast/send ici, c'est plus simple que
+		//de partager une variable+mutex avec le sender
+		
+		//FIXME: chercher si l'on a déja recu ce message
+		MessageCellAb * cell = NULL;
+		for (iter = fifo_send.begin(); iter != fifo_send.end(); iter++){
+			//on fait pointer cell sur la cellule si égale a l'id du message
+			//courant
+			MessageCellAb * cur = *iter;
+			if (cur->message == mesg){
+				printf("LowReceiver::manage_cbcast -- message seen\n");
+				firstSeenMessage = false;
+				cell = cur;
+				break;
+			}
+		}
+		if (firstSeenMessage){
+			//sinon on le crée
+			printf("LowReceiver::manage_cbcast -- message is first\n");
+			cell = new MessageCellAb();
+			cell->message = new Message(*mesg); 
+			//et on l'ajoute au fifo
+			fifo_send.push_back(cell);
+		}
+
+		//FIXME: comparer le timestamp max a ceux que l'on recoit
+		cell->count += 1;
+		if (cell->count == _group.getCount()){
+			// broadcaster le nouveau timestamp du message
+			//
+			// le message a broadcaster est exactement le message max
+			// reçu... mais bon... on le reconstruit quand m^eme
+			// IMPROVE
+			
+			TimeStamp st = cell->message->getStamp();
+			Message * nMsg = new Message(Protocol::TYPE_ABCAST,
+										st,
+										cell->maximum->getRaw(),
+										cell->maximum->getRawSize());
+			_group.broadcast(*nMsg);
+		}
+	} else {
+		printf("LowReceiver::manage_cbcast - Received a message from a friend\n");
+		for (iter = fifo_get.begin(); iter != fifo_get.end(); iter++){
+			MessageCellAb * cur = *iter;
+			if (cur->message == mesg) {
+				printf("LowReceiver::manage_cbcast -- message seen\n");
+				firstSeenMessage = false;
+				break;
+			}
+		}
+
+		if (firstSeenMessage){
+			printf("LowReceiver::manage_cbcast -- message is first\n");
+			// si le message est vu pour la premiere fois:
+			// - on l'ajoute dans la liste d'attente
+			MessageCellAb * cell = new MessageCellAb();
+			cell->message = new Message(*mesg);
+			cell->type = MessageCellAb::TYPE_TEMPORARY;		
+			// - on retourne une estampille(reception)  a l'emeteur
+
+		} else {
+			// sinon 
+			// - l'estampille du message est mise a jour
+			TimeStamp * stamp = new TimeStamp (Protocol::TYPE_ABCAST, mesg->getData(), mesg->getDataSize());
+
+			// - le message est marqué comme final
+			// - on défile les estampille finale la 
+		}
+	}
+}
+
+