fernfs 0.1.5

A Rust NFS Server implementation
Documentation 
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use async_trait::async_trait;

use fernfs::vfs::{self, Capabilities, ReadDirResult};
use fernfs::xdr::nfs3;
use fernfs::xdr::nfs3::{
    fattr3, fileid3, filename3, ftype3, nfspath3, nfsstat3, sattr3, specdata3,
};

#[derive(Default)]
pub struct DemoFS;

#[async_trait]
impl vfs::NFSFileSystem for DemoFS {
    fn generation(&self) -> u64 {
        1
    }

    fn capabilities(&self) -> Capabilities {
        Capabilities::ReadOnly
    }

    fn root_dir(&self) -> fileid3 {
        1
    }

    async fn lookup(&self, _dirid: fileid3, _filename: &filename3) -> Result<fileid3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn getattr(&self, _id: fileid3) -> Result<fattr3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn setattr(&self, _id: fileid3, _setattr: sattr3) -> Result<fattr3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn read(
        &self,
        _id: fileid3,
        _offset: u64,
        _count: u32,
    ) -> Result<(Vec<u8>, bool), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn write(
        &self,
        _id: fileid3,
        _offset: u64,
        _data: &[u8],
        _stable: nfs3::file::stable_how,
    ) -> Result<(fattr3, nfs3::file::stable_how, nfs3::count3), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn create(
        &self,
        _dirid: fileid3,
        _filename: &filename3,
        _attr: sattr3,
    ) -> Result<(fileid3, fattr3), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn create_exclusive(
        &self,
        _dirid: fileid3,
        _filename: &filename3,
        _verifier: nfs3::createverf3,
    ) -> Result<fileid3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn mkdir(
        &self,
        _dirid: fileid3,
        _dirname: &filename3,
    ) -> Result<(fileid3, fattr3), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn remove(&self, _dirid: fileid3, _filename: &filename3) -> Result<(), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn rename(
        &self,
        _from_dirid: fileid3,
        _from_filename: &filename3,
        _to_dirid: fileid3,
        _to_filename: &filename3,
    ) -> Result<(), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn readdir(
        &self,
        _dirid: fileid3,
        _start_after: fileid3,
        _max_entries: usize,
    ) -> Result<ReadDirResult, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn symlink(
        &self,
        _dirid: fileid3,
        _linkname: &filename3,
        _symlink: &nfspath3,
        _attr: &sattr3,
    ) -> Result<(fileid3, fattr3), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn readlink(&self, _id: fileid3) -> Result<nfspath3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn link(
        &self,
        _file_id: fileid3,
        _link_dir_id: fileid3,
        _link_name: &filename3,
    ) -> Result<fattr3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn mknod(
        &self,
        _dir_id: fileid3,
        _name: &filename3,
        _ftype: ftype3,
        _specdata: specdata3,
        _attrs: &sattr3,
    ) -> Result<(fileid3, fattr3), nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }

    async fn commit(
        &self,
        _file_id: fileid3,
        _offset: u64,
        _count: u32,
    ) -> Result<fattr3, nfsstat3> {
        Err(nfsstat3::NFS3ERR_NOTSUPP)
    }
}