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Emc Corporation

Robert Evan Frazier

Dennis P Ting

Mukesh Gupta

Arthur Otis Harris

John A Hassey

Pascal Donette

Ramanamurthy Jayanty

Daphna Nathanson

Techniques of operating a server computer running an application for clients operating in multiple network namespaces involve multiplexing communications streams from clients hosted in different network namespaces into a single communication stream to present the requests to an application as if they originated from a single network namespace. Along these lines, a server computer commences operation by initiating a network namespace driver for each network namespaces and a multiplexing driver to multiplex network namespace communication streams received from the network namespace drivers. When the multiplexing driver receives an application access request from a network namespace driver within a network namespace communication stream, the multiplexing driver provides the request and a network namespace identifier identifying the network namespace driver to a stream head within a multiplexed communication stream that includes requests from other network namespace drivers.

Multiplexing traffic from multiple network namespaces to a single listener in a stream-based server application

For multi-threaded network processing, a real-time task is scheduled in a network server by placing the task on a real-time task list, activating the task when an event occurs during operation of the network server, and executing the task when scanning the task list and finding that the task has been activated. For example, an application or kernel process sends to a real-time network thread manager a request to register a task specified by an address of a task service routine. The thread manager places the address in an entry on the task list and returns a cookie identifying the entry. Upon occurrence of the event, an interrupt routine sends to a task activation routine a request to activate the task specified by the cookie. At periodic intervals, if there are any activated tasks on the task list, then a real-time scheduler scans the task list.

Multi-tasking real-time kernel threads used in multi-threaded network processing

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Robert Evan Frazier