2 files changed, 18 insertions, 2 deletions
diff --git a/indra/llinventory/lluserrelations.cpp b/indra/llinventory/lluserrelations.cpp
index 0f1b48ecd1..e96cb1e1c1 100644
--- a/indra/llinventory/lluserrelations.cpp
+++ b/indra/llinventory/lluserrelations.cpp
@@ -41,6 +41,7 @@ const LLRelationship LLRelationship::DEFAULT_RELATIONSHIP = LLRelationship(GRANT
 LLRelationship::LLRelationship() :
 	mGrantToAgent(0),
 	mGrantFromAgent(0),
+	mChangeSerialNum(0),
 	mIsOnline(false)
 {
 }
@@ -48,6 +49,7 @@ LLRelationship::LLRelationship() :
 LLRelationship::LLRelationship(S32 grant_to, S32 grant_from, bool is_online) :
 	mGrantToAgent(grant_to),
 	mGrantFromAgent(grant_from),
+	mChangeSerialNum(0),
 	mIsOnline(is_online)
 {
 }
@@ -60,6 +62,7 @@ bool LLRelationship::isOnline() const
 void LLRelationship::online(bool is_online)
 {
 	mIsOnline = is_online;
+	mChangeSerialNum++;
 }
 
 bool LLRelationship::isRightGrantedTo(S32 rights) const
@@ -86,12 +89,14 @@ void LLRelationship::grantRights(S32 to_agent, S32 from_agent)
 {
 	mGrantToAgent |= to_agent;
 	mGrantFromAgent |= from_agent;
+	mChangeSerialNum++;
 }
 
 void LLRelationship::revokeRights(S32 to_agent, S32 from_agent)
 {
 	mGrantToAgent &= ~to_agent;
 	mGrantFromAgent &= ~from_agent;
+	mChangeSerialNum++;
 }
 
 
diff --git a/indra/llinventory/lluserrelations.h b/indra/llinventory/lluserrelations.h
index 448301383e..36472215f6 100644
--- a/indra/llinventory/lluserrelations.h
+++ b/indra/llinventory/lluserrelations.h
@@ -142,8 +142,18 @@ public:
 	 */
 	S32 getRightsGrantedFrom() const;
 
-	void setRightsTo(S32 to_agent) { mGrantToAgent = to_agent; }
-	void setRightsFrom(S32 from_agent) { mGrantFromAgent = from_agent; }
+	void setRightsTo(S32 to_agent) { mGrantToAgent = to_agent; mChangeSerialNum++; }
+	void setRightsFrom(S32 from_agent) { mGrantFromAgent = from_agent; mChangeSerialNum++;}
+
+	/**
+	 * @brief Get the change count for this agent
+	 *
+	 * Every change to rights will increment the serial number
+	 * allowing listeners to determine when a relationship value is actually new
+	 *
+	 * @return change serial number for relationship
+	 */
+	S32 getChangeSerialNum() const { return mChangeSerialNum; }
 
 	/**
 	 * @brief Grant a set of rights.
@@ -171,6 +181,7 @@ public:
 protected:
 	S32 mGrantToAgent;
 	S32 mGrantFromAgent;
+	S32 mChangeSerialNum;
 	bool mIsOnline;
 };