pub fn decode_error(errno: i32) -> IoError {
    let (kind, desc) = match errno {
        libc::EOF => (old_io::EndOfFile, "end of file"),
        libc::ERROR_NO_DATA => (old_io::BrokenPipe, "the pipe is being closed"),
        libc::ERROR_FILE_NOT_FOUND => (old_io::FileNotFound, "file not found"),
        libc::ERROR_INVALID_NAME => (old_io::InvalidInput, "invalid file name"),
        libc::WSAECONNREFUSED => (old_io::ConnectionRefused, "connection refused"),
        libc::WSAECONNRESET => (old_io::ConnectionReset, "connection reset"),
        libc::ERROR_ACCESS_DENIED | libc::WSAEACCES =>
            (old_io::PermissionDenied, "permission denied"),
        libc::WSAEWOULDBLOCK => {
            (old_io::ResourceUnavailable, "resource temporarily unavailable")
        }
        libc::WSAENOTCONN => (old_io::NotConnected, "not connected"),
        libc::WSAECONNABORTED => (old_io::ConnectionAborted, "connection aborted"),
        libc::WSAEADDRNOTAVAIL => (old_io::ConnectionRefused, "address not available"),
        libc::WSAEADDRINUSE => (old_io::ConnectionRefused, "address in use"),
        libc::ERROR_BROKEN_PIPE => (old_io::EndOfFile, "the pipe has ended"),
        libc::ERROR_OPERATION_ABORTED =>
            (old_io::TimedOut, "operation timed out"),
        libc::WSAEINVAL => (old_io::InvalidInput, "invalid argument"),
        libc::ERROR_CALL_NOT_IMPLEMENTED =>
            (old_io::IoUnavailable, "function not implemented"),
        libc::ERROR_INVALID_HANDLE =>
            (old_io::MismatchedFileTypeForOperation,
             "invalid handle provided to function"),
        libc::ERROR_NOTHING_TO_TERMINATE =>
            (old_io::InvalidInput, "no process to kill"),
        libc::ERROR_ALREADY_EXISTS =>
            (old_io::PathAlreadyExists, "path already exists"),

        // libuv maps this error code to EISDIR. we do too. if it is found
        // to be incorrect, we can add in some more machinery to only
        // return this message when ERROR_INVALID_FUNCTION after certain
        // Windows calls.
        libc::ERROR_INVALID_FUNCTION => (old_io::InvalidInput,
                                         "illegal operation on a directory"),

        _ => (old_io::OtherIoError, "unknown error")
    };
    IoError { kind: kind, desc: desc, detail: None }
}
/// Convert an `errno` value into a high-level error variant and description.
Convert an `errno` value into a high-level error variant and description.
Convert an ` errno ` value into a high - level error variant and description .
pub fn decode_error(errno: i32) -> IoError {
    let (kind, desc) = match errno {
        libc::EOF => (old_io::EndOfFile, "end of file"),
        libc::ERROR_NO_DATA => (old_io::BrokenPipe, "the pipe is being closed"),
        libc::ERROR_FILE_NOT_FOUND => (old_io::FileNotFound, "file not found"),
        libc::ERROR_INVALID_NAME => (old_io::InvalidInput, "invalid file name"),
        libc::WSAECONNREFUSED => (old_io::ConnectionRefused, "connection refused"),
        libc::WSAECONNRESET => (old_io::ConnectionReset, "connection reset"),
        libc::ERROR_ACCESS_DENIED | libc::WSAEACCES =>
            (old_io::PermissionDenied, "permission denied"),
        libc::WSAEWOULDBLOCK => {
            (old_io::ResourceUnavailable, "resource temporarily unavailable")
        }
        libc::WSAENOTCONN => (old_io::NotConnected, "not connected"),
        libc::WSAECONNABORTED => (old_io::ConnectionAborted, "connection aborted"),
        libc::WSAEADDRNOTAVAIL => (old_io::ConnectionRefused, "address not available"),
        libc::WSAEADDRINUSE => (old_io::ConnectionRefused, "address in use"),
        libc::ERROR_BROKEN_PIPE => (old_io::EndOfFile, "the pipe has ended"),
        libc::ERROR_OPERATION_ABORTED =>
            (old_io::TimedOut, "operation timed out"),
        libc::WSAEINVAL => (old_io::InvalidInput, "invalid argument"),
        libc::ERROR_CALL_NOT_IMPLEMENTED =>
            (old_io::IoUnavailable, "function not implemented"),
        libc::ERROR_INVALID_HANDLE =>
            (old_io::MismatchedFileTypeForOperation,
             "invalid handle provided to function"),
        libc::ERROR_NOTHING_TO_TERMINATE =>
            (old_io::InvalidInput, "no process to kill"),
        libc::ERROR_ALREADY_EXISTS =>
            (old_io::PathAlreadyExists, "path already exists"),
        // libuv maps this error code to EISDIR. we do too. if it is found
        // to be incorrect, we can add in some more machinery to only
        // return this message when ERROR_INVALID_FUNCTION after certain
        // Windows calls.
        libc::ERROR_INVALID_FUNCTION => (old_io::InvalidInput,
                                         "illegal operation on a directory"),
        _ => (old_io::OtherIoError, "unknown error")
    };
    IoError { kind: kind, desc: desc, detail: None }
}
pub fn decode_error ( errno : i32 ) -> IoError { let ( kind , desc ) = match errno { libc :: EOF => ( old_io :: EndOfFile , " " ) , libc :: ERROR_NO_DATA => ( old_io :: BrokenPipe , " " ) , libc :: ERROR_FILE_NOT_FOUND => ( old_io :: FileNotFound , " " ) , libc :: ERROR_INVALID_NAME => ( old_io :: InvalidInput , " " ) , libc :: WSAECONNREFUSED => ( old_io :: ConnectionRefused , " " ) , libc :: WSAECONNRESET => ( old_io :: ConnectionReset , " " ) , libc :: ERROR_ACCESS_DENIED | libc :: WSAEACCES => ( old_io :: PermissionDenied , " " ) , libc :: WSAEWOULDBLOCK => { ( old_io :: ResourceUnavailable , " " ) } libc :: WSAENOTCONN => ( old_io :: NotConnected , " " ) , libc :: WSAECONNABORTED => ( old_io :: ConnectionAborted , " " ) , libc :: WSAEADDRNOTAVAIL => ( old_io :: ConnectionRefused , " " ) , libc :: WSAEADDRINUSE => ( old_io :: ConnectionRefused , " " ) , libc :: ERROR_BROKEN_PIPE => ( old_io :: EndOfFile , " " ) , libc :: ERROR_OPERATION_ABORTED => ( old_io :: TimedOut , " " ) , libc :: WSAEINVAL => ( old_io :: InvalidInput , " " ) , libc :: ERROR_CALL_NOT_IMPLEMENTED => ( old_io :: IoUnavailable , " " ) , libc :: ERROR_INVALID_HANDLE => ( old_io :: MismatchedFileTypeForOperation , " " ) , libc :: ERROR_NOTHING_TO_TERMINATE => ( old_io :: InvalidInput , " " ) , libc :: ERROR_ALREADY_EXISTS => ( old_io :: PathAlreadyExists , " " ) , // libuv maps this error code to EISDIR. we do too. if it is found // to be incorrect, we can add in some more machinery to only // return this message when ERROR_INVALID_FUNCTION after certain // Windows calls. libc :: ERROR_INVALID_FUNCTION => ( old_io :: InvalidInput , " " ) , _ => ( old_io :: OtherIoError , " " ) } ; IoError { kind : kind , desc : desc , detail : None } }
Convert an `errno` value into a high-level error variant and description.
Convert an ` errno ` value into a high - level error variant and description .
errno
i32
errno
i32