Cisco Technology, Inc.

James J Miner

Billy Gayle Moon

Bryan C Turner

Walter Leslie Robinson

Mickey Sartin

Stan Ratliff

Thomas David Berry

Ronald W Taylor

Edward D Paradise

Hope Mills

Steve Klein

Darryl L Satterwhite

The embodiments described herein provide mechanism that allows an embedded router software image and an application to run in the user application memory space of a general purpose computer. A connection is established with an operating system device configured to route packets between the application and the software router and route, by the software router, network traffic to and from the application by way of the connection. The application may be connected to other applications in the user application memory space or connected to applications that are external to the general purpose computer.

Routing traffic for applications by a software router co-resident in application memory space of a general purpose computer

The embodiments described herein provide mechanism that allows an embedded router software image to run in the user application memory space of a general purpose computer. An interface process is provided to receive and transmit packets between the user application memory space and the operating system's protected or kernel memory space of the general purpose computer. The interface process mimics or emulates any hardware interfaces that would be available to the router software when running on a dedicated embedded router device.

Device driver for a software router

In one embodiment, a method comprises receiving from a user interface, by a computing device, a request for execution of at least one lambda function in an operation of a geospatial application, the geospatial application having lambda functions for operating on at least one of a workflow item or one or more entities of an ad hoc geospatial directory, the workflow item including at least one of the lambda functions for a workflow in the geospatial application; and executing by the computing device the at least one lambda function to form, in the geospatial application, a work entity that associates the workflow item with one of the entities, the work entity defining execution of the workflow on the one entity.

Ad hoc generation of work item entity for geospatial entity based on symbol manipulation language-based workflow item

Techniques for allocating computing resources to tasks include receiving first data and second data. The first data indicates a limit for unblocked execution by a processor of a set of at least one task that includes instructions for the processor. The second data indicates a maximum use of the processor by the set. It is determined whether a particular set of at least one task has exceeded the limit for unblocked execution based on the first data. If it is determined that the particular set has exceeded the limit, then execution of the particular set by the processor is blocked for a yield time interval based on the second data. These techniques can guarantee that no time-critical tasks of an embedded system on a specific-purpose device are starved for processor time by tasks of foreign applications also executed by the processor.

Techniques for allocating computing resources to applications in an embedded system

In one embodiment, a method comprises receiving from a user interface, by a computing device, a request for execution of at least one lambda function in an operation of a geospatial application, the geospatial application having lambda functions for operating on one or more entities of an ad hoc geospatial directory accessible by the computing device, the lambda functions having strongly typed definitions according to a prescribed symbol manipulation language that is a non-Turing complete language, that does not permit partial functions, and that is independent of any attribute of any computing system; optimizing execution by the computing device of the operation on the ad hoc geospatial directory; and the computing device returning to the user interface a response to the request based on the optimizing execution of the operation, the response including a data structure including at least one of the lambda functions for a corresponding at least one of generating a query of the ad hoc geospatial directory, modifying a state of at least a first of the entities, or accessing the first of the entities.

Ad hoc geospatial directory of users based on optimizing non-Turing complete executable application

Techniques for managing data in a distributed system include receiving first mobile data that includes non-routing data for a mobile node of multiple nodes in a distributed data system. The mobile node is associated with a first data item of multiple data items in the distributed data system. Non-routing data includes organizational data for data items in the distributed database or spatial data, or both. Spatial data includes at least one of a physical location, shape, size, and orientation. A non-topological relationship is determined between the first data item and a different second data item based on the non-routing data. Content is communicated with the mobile node based at least in part on the non-topological relationship. These techniques allow conservation of valuable network resources by communicating only data relevant to a recipient based on the spatial or organizational context of the communicating nodes.

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Morrisville, NC, United States of America

James J Miner