CODEWITHSUNDEEP
dbus
venkata sai kumar Gajjala
venkata sai kumar Gajjala

Reputation: 11

What is the difference between a D-Bus signal and a D-Bus property

Basic difference between D-Bus signal & D-Bus property. Are this two same. When we have to use D-Bus signal & D-Bus property?

Upvotes: 1

Views: 1968

Answers (2)

YesThatIsMyName
YesThatIsMyName

Reputation: 1636

Use DBus signals, if you have to notify an application about an event that has occured.

Use DBus properties, if you want to have the application get the value of a property at any time. Additionally, you can have a property-changed-handler, to notify you about value changes of a specific property.

Upvotes: 1

Jorge Martinez
Jorge Martinez

Reputation: 1231

DBus property represent a state and you need to ask for its value. DBus Signal are like 'events', you can register to them and you will receive changes notifications on your Signal Handlers. See the specification for more info: http://dbus.freedesktop.org/doc/dbus-specification.html

Upvotes: 5

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