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What is D-Bus?

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What is D-Bus?

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This is probably best answered by reading the D-Bus tutorial or the introduction to the specification. In short, it is a system consisting of 1) a wire protocol for exposing a typical object-oriented language/framework to other applications; and 2) a bus daemon that allows applications to find and monitor one another. Phrased differently, D-Bus is 1) an interprocess communication (IPC) system and 2) some higher-level structure (lifecycle tracking, service activation, security policy) provided by two bus daemons, one systemwide and one per-user-session.

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