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type Eio.Exn.Backend.t +=
| Outside_sandbox of string * string
| Absolute_path
| Invalid_leaf of string
let unclassified_error e = Eio.Exn.create (Eio.Exn.X e)
let () =
Eio.Exn.Backend.register_pp (fun f -> function
| Outside_sandbox (path, dir) -> Fmt.pf f "Outside_sandbox (%S, %S)" path dir; true
| Absolute_path -> Fmt.pf f "Absolute_path"; true
| Invalid_leaf x -> Fmt.pf f "Invalid_leaf %S" x; true
| _ -> false
)
let wrap code name arg =
let e = Eio_unix.Unix_error (code, name, arg) in
match code with
| EEXIST -> Eio.Fs.err (Already_exists e)
| ENOENT -> Eio.Fs.err (Not_found e)
| EXDEV | EACCES | EPERM -> Eio.Fs.err (Permission_denied e)
| ECONNREFUSED -> Eio.Net.err (Connection_failure (Refused e))
| ECONNRESET | EPIPE | ECONNABORTED -> Eio.Net.err (Connection_reset e)
| _ -> unclassified_error e
let run fn x =
try fn x
with Unix.Unix_error (code, name, arg) ->
raise (wrap code name arg)
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