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// Copyright © 2017 Mozilla Foundation
//
// This program is made available under an ISC-style license. See the
// accompanying file LICENSE for details.
use cubeb_backend::Error;
use std::os::raw::c_int;
#[doc(hidden)]
pub fn _err<E>(e: E) -> Error
where
E: Into<Option<c_int>>,
{
match e.into() {
Some(e) => Error::from_raw(e),
None => Error::error(),
}
}
#[macro_export]
macro_rules! send_recv {
($rpc:expr, $smsg:ident => $rmsg:ident) => {{
let resp = send_recv!(__send $rpc, $smsg);
send_recv!(__recv resp, $rmsg)
}};
($rpc:expr, $smsg:ident => $rmsg:ident()) => {{
let resp = send_recv!(__send $rpc, $smsg);
send_recv!(__recv resp, $rmsg __result)
}};
($rpc:expr, $smsg:ident($($a:expr),*) => $rmsg:ident) => {{
let resp = send_recv!(__send $rpc, $smsg, $($a),*);
send_recv!(__recv resp, $rmsg)
}};
($rpc:expr, $smsg:ident($($a:expr),*) => $rmsg:ident()) => {{
let resp = send_recv!(__send $rpc, $smsg, $($a),*);
send_recv!(__recv resp, $rmsg __result)
}};
//
(__send $rpc:expr, $smsg:ident) => ({
$rpc.call(ServerMessage::$smsg)
});
(__send $rpc:expr, $smsg:ident, $($a:expr),*) => ({
$rpc.call(ServerMessage::$smsg($($a),*))
});
(__recv $resp:expr, $rmsg:ident) => ({
match $resp {
Ok(ClientMessage::$rmsg) => Ok(()),
Ok(ClientMessage::Error(e)) => Err($crate::send_recv::_err(e)),
Ok(m) => {
debug!("received wrong message - got={:?}", m);
Err($crate::send_recv::_err(None))
},
Err(e) => {
debug!("received error from rpc - got={:?}", e);
Err($crate::send_recv::_err(None))
},
}
});
(__recv $resp:expr, $rmsg:ident __result) => ({
match $resp {
Ok(ClientMessage::$rmsg(v)) => Ok(v),
Ok(ClientMessage::Error(e)) => Err($crate::send_recv::_err(e)),
Ok(m) => {
debug!("received wrong message - got={:?}", m);
Err($crate::send_recv::_err(None))
},
Err(e) => {
debug!("received error - got={:?}", e);
Err($crate::send_recv::_err(None))
},
}
})
}
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