VWR-22695 FIXED Adding attachments messaging is inefficient

Single attachment request are now batched up and sent all at once as a single message.

1 files changed, 73 insertions, 0 deletions

diff --git a/indra/newview/llattachmentsmgr.h b/indra/newview/llattachmentsmgr.h
new file mode 100644
index 0000000000..1d8ab74dfd
--- /dev/null
+++ b/indra/newview/llattachmentsmgr.h
@@ -0,0 +1,73 @@
+/** 
+ * @file llattachmentsmgr.h
+ * @brief Batches up attachment requests and sends them all
+ * in one message.
+ *
+ * $LicenseInfo:firstyear=2004&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLATTACHMENTSMGR_H
+#define LL_LLATTACHMENTSMGR_H
+
+#include "llsingleton.h"
+
+class LLViewerInventoryItem;
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// LLAttachmentsMgr
+// 
+// The sole purpose of this class is to take attachment
+// requests, queue them up, and send them all at once.
+// This handles situations where the viewer may request
+// a bunch of attachments at once in a short period of
+// time, where each of the requests would normally be
+// sent as a separate message versus being batched into
+// one single message.
+// 
+// The intent of this batching is to reduce viewer->server
+// traffic.
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class LLAttachmentsMgr: public LLSingleton<LLAttachmentsMgr>
+{
+public:
+	LLAttachmentsMgr();
+	virtual ~LLAttachmentsMgr();
+
+	void addAttachment(const LLUUID& item_id,
+					   const U8 attachment_pt,
+					   const BOOL add);
+	static void onIdle(void *);
+protected:
+	void onIdle();
+private:
+	struct AttachmentsInfo
+	{
+		LLUUID mItemID;
+		U8 mAttachmentPt;
+		BOOL mAdd;
+	};
+
+	typedef std::vector<AttachmentsInfo> attachments_vec_t;
+	attachments_vec_t mPendingAttachments;
+};
+
+#endif