The Boeing Company

Michael John McNicholl

George Wu

Seth John Thorup

Yong-Long Calvin Ling

David Joseph Guichard

Calvin Ling

A first processing core selects a first memory address of a first memory area based on a last written buffer that identifies a last written memory address. The first memory area is a portion of a shared memory, and the first processing core has sole write access to the first memory area among a plurality of processing cores that use the shared memory. Data is written to the first memory address of the first memory area. After writing the data to the first memory address, the last written buffer is updated to designate the first memory address as the last written memory address of the first memory area. A second processing core of the plurality of processing cores is operable to access the data by accessing the last written buffer and determining, based on the last written buffer, that the data is stored at the first memory address.

Communications via shared memory

A method for verifying the connectivity of software applications hosted on networked computers. The connectivity of hosted function applications to be loaded into networked computers is verified and validated using quasi-hosted function applications that simulate the communications functions (i.e., connectivity) of those hosted function applications. The quasi-hosted function applications are run on the same hardware that the real hosted function applications will be run on. Furthermore, the connectivity of a real hosted function application loaded into one computer can be verified and validated by simulating communications of that real hosted function application with a multiplicity of quasi-hosted function applications running on the networked computers.

Method for testing connectivity of software applications hosted on networked computers

A method for adding latency and jitter to a number of selected packets transmitted between end systems within a network of end systems is described. The method includes receiving a packet identifier, the packet identifier indicating a selected packet to which latency and jitter is to be added, receiving a selected latency and jitter for the selected packet, receiving a packet, determining if the received packet is the selected packet, and forwarding the received packet to its destination if the received packet is not the selected packet. If the received packet is the selected packet, the method continues by reading a real time clock, computing a transmit time for the received packet based on the selected latency and jitter for the selected packet, and forwarding the received packet to its destination when the real time clock reaches the computed transmit time.

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Renton, WA, United States of America

Michael John McNicholl