Microsoft Technology Licensing, LLC

Jim R Van Eaton

Russell Lee Simpson, Jr

Giselli Panontini De Souza Sana

Sridhar Raman

Daniel Veiga Kling

Rajatish Mukherjee

Scott C Mikula

Russell L Simpson

A server push model for client/server communications. The push architecture operates on top of a non-push (e.g., request/response) protocol (e.g., HTTP) to combine notifications from multiple data sources (e.g., email, text messaging, etc.). The server can be a middle-tier server (or proxy) to which a single web client registers interest in one or more notification types from one or more data sources. The mid-tier server aggregates the notifications from the various data sources and delivers the notifications to the requesting client via a single 'push' pipe. The web client then distributes each notification to the appropriate parts of the client user interface. A producer/consumer locking mechanism eliminates blocking threads waiting on a mutual exclusion lock. A notification throttling mechanism distinguishes different types of notifications in order to guarantee that the client is not overloaded with too much information.

Push mechanism for efficiently sending aggregated data items to client

A virtual list view in a web application is dynamically updated such that a user can seamlessly access and manage the presented data despite the inherent latency involved with the web. Data associated with the virtual list view is downloaded in chunks and the view updated as the user scrolls. By coupling the user's scrolling and particular chunks of data to be downloaded system resources are utilized in an efficient manner. Additional user interface controls for the user interface are employed for rapid and efficient access to portions of data minimizing delay and system resource occupation.

Dynamically updated virtual list view

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Jim R Van Eaton