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This patch reworks the view-ID handling within the nitpicker GUI server and the window manager. The namespace of view handles are now represented as an Id_space. In constrast to the former "handles", which could be invalid, IDs cannot be semantically overloaded with anything other than an actual view reference. There is no notion of an invalid handle. IDs are like C++ references (which cannot be a nullptr). This change requires the code to be more explicit. E.g., the stacking of a few at the front-most position can no longer be expressed by passing an invalid handle as neighbor. Issue #5242
This directory is a source-code repository containing Genode-specific services and applications. In contrast to the components hosted in the 'os' repository, programs contained in 'gems' are able to leverage the functionalities provided by higher-level repositories such as 'libports'. To use the 'gems' repository, make sure to also add those repositories to your build configuraion.