4 files changed, 159 insertions, 2 deletions
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index 3c689930b8..60e88a1cfb 100644
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -32,6 +32,7 @@ set(llcommon_SOURCE_FILES
     llapp.cpp
     llapr.cpp
     llassettype.cpp
+    llavatarname.cpp
     llbase32.cpp
     llbase64.cpp
     llcommon.cpp
@@ -114,6 +115,7 @@ set(llcommon_HEADER_FILES
     llallocator.h
     llallocator_heap_profile.h
     llagentconstants.h
+    llavatarname.h
     llapp.h
     llapr.h
     llassettype.h
diff --git a/indra/llcommon/llavatarname.cpp b/indra/llcommon/llavatarname.cpp
new file mode 100644
index 0000000000..4eeb6e706d
--- /dev/null
+++ b/indra/llcommon/llavatarname.cpp
@@ -0,0 +1,81 @@
+/** 
+ * @file llavatarname.cpp
+ * @brief Represents name-related data for an avatar, such as the
+ * username/SLID ("bobsmith123" or "james.linden") and the display
+ * name ("James Cook")
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+#include "linden_common.h"
+
+#include "llavatarname.h"
+
+#include "lldate.h"
+#include "llsd.h"
+
+// Store these in pre-built std::strings to avoid memory allocations in
+// LLSD map lookups
+static const std::string SL_ID("sl_id");
+static const std::string DISPLAY_NAME("display_name");
+static const std::string IS_DISPLAY_NAME_DEFAULT("is_display_name_default");
+static const std::string DISPLAY_NAME_EXPIRES("display_name_expires");
+
+LLAvatarName::LLAvatarName()
+:	mSLID(),
+	mDisplayName(),
+	mIsDisplayNameDefault(false),
+	mIsDummy(false),
+	mExpires(F64_MAX)
+{ }
+
+bool LLAvatarName::operator<(const LLAvatarName& rhs) const
+{
+	if (mSLID == rhs.mSLID)
+		return mDisplayName < rhs.mDisplayName;
+	else
+		return mSLID < rhs.mSLID;
+}
+
+LLSD LLAvatarName::asLLSD() const
+{
+	LLSD sd;
+	sd[SL_ID] = mSLID;
+	sd[DISPLAY_NAME] = mDisplayName;
+	sd[IS_DISPLAY_NAME_DEFAULT] = mIsDisplayNameDefault;
+	sd[DISPLAY_NAME_EXPIRES] = LLDate(mExpires);
+	return sd;
+}
+
+void LLAvatarName::fromLLSD(const LLSD& sd)
+{
+	mSLID = sd[SL_ID].asString();
+	mDisplayName = sd[DISPLAY_NAME].asString();
+	mIsDisplayNameDefault = sd[IS_DISPLAY_NAME_DEFAULT].asBoolean();
+	LLDate expires = sd[DISPLAY_NAME_EXPIRES];
+	mExpires = expires.secondsSinceEpoch();
+}
diff --git a/indra/llcommon/llavatarname.h b/indra/llcommon/llavatarname.h
new file mode 100644
index 0000000000..d7d91e1c7a
--- /dev/null
+++ b/indra/llcommon/llavatarname.h
@@ -0,0 +1,75 @@
+/** 
+ * @file llavatarname.h
+ * @brief Represents name-related data for an avatar, such as the
+ * username/SLID ("bobsmith123" or "james.linden") and the display
+ * name ("James Cook")
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+#ifndef LLAVATARNAME_H
+#define LLAVATARNAME_H
+
+#include <string>
+
+class LLSD;
+
+class LL_COMMON_API LLAvatarName
+{
+public:
+	LLAvatarName();
+	
+	bool operator<(const LLAvatarName& rhs) const;
+
+	LLSD asLLSD() const;
+
+	void fromLLSD(const LLSD& sd);
+
+	// "bobsmith123" or "james.linden", US-ASCII only
+	std::string mSLID;
+
+	// "Jose' Sanchez" or "James Linden", UTF-8 encoded Unicode
+	// Contains data whether or not user has explicitly set
+	// a display name; may duplicate their SLID.
+	std::string mDisplayName;
+
+	// If true, both display name and SLID were generated from
+	// a legacy first and last name, like "James Linden (james.linden)"
+	bool mIsDisplayNameDefault;
+
+	// Under error conditions, we may insert "dummy" records with
+	// names like "???" into caches as placeholders.  These can be
+	// shown in UI, but are not serialized.
+	bool mIsDummy;
+
+	// Names can change, so need to keep track of when name was
+	// last checked.
+	// Unix time-from-epoch seconds for efficiency
+	F64 mExpires;
+};
+
+#endif
diff --git a/indra/llcommon/llchat.h b/indra/llcommon/llchat.h
index f1b9091298..91302618e9 100644
--- a/indra/llcommon/llchat.h
+++ b/indra/llcommon/llchat.h
@@ -34,7 +34,6 @@
 #ifndef LL_LLCHAT_H
 #define LL_LLCHAT_H
 
-#include "llstring.h"
 #include "lluuid.h"
 #include "v3math.h"
 
@@ -77,7 +76,7 @@ typedef enum e_chat_style
 class LLChat
 {
 public:
-	LLChat(const std::string& text = LLStringUtil::null)
+	LLChat(const std::string& text = std::string())
 	:	mText(text),
 		mFromName(),
 		mFromID(),