Hi Rumen, just a disclaimer, extending the VFS with hardlink support is not something we endorse because of prior experience and the lack of complelling use-cases that balance out the pitfalls.
> I need some help with extending the VFS for my project. I need > hardlink support, so I added the following to > repos/os/include/vfs/directory_service.h's Directory_service struct: > […] > The problem is that hardlink uses the default implementation in my main code: > squidutils->_vfs_env.root_dir().hardlink(p2.string(), p1.string()); // > Prints 'not implemented' > […] > From what I have read online the issue is that > squidutils->_vfs_env.root_dir() is of type Directory_service, whereas > […] You have to implement hardlink support in other VFS plugins, namely the 'Dir_file_system' as this is normally the file-system you access via 'root_dir()', as well. Otherwise you are not going to end up in the lwext4 VFS plugin. The implementation of 'openlink' can show you the way. > Is there a way to use Lwext4_vfs_file_system without copying the > entire source of Lwext4 into my project's source code? Or am I perhaps > going in the wrong direction with all of this? If you follow the advice given above you should be able to make use of the lwext4 VFS plugin w/o the need to create copy. In a previous e-mail I advised against using the lwext4 library directly but perhaps iff there is no particular reason to use the VFS it could be more beneficial to go in this direction after all. The by now removed code in [1] illustrates how you can access the Block session w/o relying on the VFS. [1] https://github.com/genodelabs/genode-world/blob/3b8e174b6a213346ff7ebcbeeb108a95ceced49f/src/lib/lwext4/block.cc Regards Josef -- Josef Söntgen Genode Labs http://www.genode-labs.com/ · http://genode.org/
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