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A comment on Rethinking the D-Bus Message Bus. Parent comment

Re:Rethinking the D-Bus Message Bus by AceJohnny2 on Wednesday August 23, 2017 @03:18PM (#15084284)
> Since QNX is proprietary, QNX messaging is likely patent encumbered.

Not necessarily. QNX messaging is old enough that patents related to the interface may have expired.

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Re:Rethinking the D-Bus Message Bus by transpute on Wednesday August 23, 2017 @04:21PM (#15084708)
Here is one from 2005: https://www.google.com/patents/US20060182137

"An asynchronous message passing mechanism that allows for multiple messages to be batched for delivery between processes, while allowing for full memory protection during data transfers and a lockless mechanism for speeding up queue operation and queuing and delivering messages simultaneously."

Maybe there are older patents that have expired?

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