Why do I need a runtime?

[05storm26]

I am trying to use this to be able to easly switch the tls implementation between rustls and native-tls.

Is there a way to use this crate without an async runtime, with std::net::tcp::TcpStream?

I tried to disable the default features to get rid of the async related stuff from this library but then I get these kind of errors:

[ERROR rust_analyzer::main_loop] FetchBuildDataError:
error[E0432]: unresolved import `crate::runtime::AsyncRead`
  --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/async_as_sync.rs:14:5
   |
14 | use crate::runtime::AsyncRead;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncRead` in `runtime`


error[E0432]: unresolved import `crate::runtime::AsyncWrite`
  --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/async_as_sync.rs:15:5
   |
15 | use crate::runtime::AsyncWrite;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncWrite` in `runtime`


error[E0432]: unresolved import `crate::runtime::AsyncRead`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/socket.rs:1:5
  |
1 | use crate::runtime::AsyncRead;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncRead` in `runtime`


error[E0432]: unresolved import `crate::runtime::AsyncWrite`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/socket.rs:2:5
  |
2 | use crate::runtime::AsyncWrite;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncWrite` in `runtime`


error[E0432]: unresolved import `crate::spi_async_socket_impl_delegate`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/socket_box.rs:8:5
  |
8 | use crate::spi_async_socket_impl_delegate;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `spi_async_socket_impl_delegate` in the root


error[E0432]: unresolved import `crate::spi_async_socket_impl_delegate`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream.rs:4:5
  |
4 | use crate::spi_async_socket_impl_delegate;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `spi_async_socket_impl_delegate` in the root


error[E0432]: unresolved import `crate::runtime::AsyncRead`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream_with_socket.rs:8:5
  |
8 | use crate::runtime::AsyncRead;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncRead` in `runtime`


error[E0432]: unresolved import `crate::runtime::AsyncWrite`
 --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream_with_socket.rs:9:5
  |
9 | use crate::runtime::AsyncWrite;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `AsyncWrite` in `runtime`


error[E0432]: unresolved import `crate::spi_async_socket_impl_delegate`
  --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream_with_socket.rs:12:5
   |
12 | use crate::spi_async_socket_impl_delegate;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `spi_async_socket_impl_delegate` in the root


error: cannot determine resolution for the macro `spi_async_socket_impl_delegate`
  --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/socket_box.rs:49:1
   |
49 | spi_async_socket_impl_delegate!(AsyncSocketBox);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: import resolution is stuck, try simplifying macro imports


error: cannot determine resolution for the macro `spi_async_socket_impl_delegate`
  --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream.rs:52:1
   |
52 | spi_async_socket_impl_delegate!(TlsStream);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: import resolution is stuck, try simplifying macro imports


error: cannot determine resolution for the macro `spi_async_socket_impl_delegate`
   --> /home/adam/.cargo/registry/src/github.com-1ecc6299db9ec823/tls-api-0.9.0/src/stream_with_socket.rs:114:1
    |
114 | spi_async_socket_impl_delegate!(TlsStreamWithSocket<S>);
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: import resolution is stuck, try simplifying macro imports


error: aborting due to 12 previous errors


For more information about this error, try `rustc --explain E0432`.

error: could not compile `tls-api` due to 13 previous errors

[aljazerzen]

From the quick scan of the code, it seems like this crate only provides async API.

https://github.com/stepancheg/rust-tls-api/blob/master/api/src/socket.rs#L5-L10

You should also provide your source code when showing error messages - it is hard to reason about the output if one does not know the input.