On Tuesday, February 21, 2012 17:16:35 Simone Gaiarin wrote: > I need some explanation on how dataengines work. I can't understand if > the dataengine is shared among plasmoids or if every plasmoid creates > his own dataengine that retrive info.
DataEngines are shared and read-only. Services are not shared and are read- write. > My purpose is: I create a plasmoid, this plasmoid require a source to > a dataengine, this source is a pointer to a kprocess. After that I > create more plasmoids and they should access the same source to get > the pointer to the KProcess. sharing pointers via DataEngines in this way is not a great idea. DataEngines can be accessed remotely, for instance, and then the pointer will be meaningless (or worse -> cause crashes) > What I obtain when I call the dataEngine() method from a plasmoid is > that a new instance of a dataengine is created, so I cannot see source > requested by other plasmoid because the dataengines are distinct. are the plasmoids running in the same process? or are you starting them in different processes (e.g. plasma-desktop and plasmoidviewer)? -- Aaron J. Seigo
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