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  • DBus

    D-Bus helps coordinate process lifecycle. It makes it simple and reliable to code a “single instance” (?) application or deamon, and to launch applications and deamons on demand when their services are needed.

    D-Bus is designed for two specific use cases:

    l  A “system bus” for notifications from the system to user sessions, and to allow the system to request input from user sessions

    l  A “session bus” used to implement desktop environments such as GNOME and KDE

     

    Converting a value from some other representation into the wire format is called marshaling and converting it back from the wire format is unmarshaling.

    a block of marshaled values must have a known type signature.

    a single complete type is a sequence of type codes that fully describes one type: a single complete type is a basic type code, a variant type code, an array with its element type, or a struct with its fields.

    • basic types: struct is entirely defined by their 1-character type code.

     

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  • 原文地址:https://www.cnblogs.com/lauraxia/p/3750653.html
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