fix: fix conditional code for windows builds (#334)

examples/n2c-miniprotocols/src/main.rs

@@ -58,7 +58,7 @@ async fn do_chainsync(client: &mut NodeClient) {
 // environment
 const SOCKET_PATH: &str = "/tmp/node.socket";
 
-#[cfg(target_family = "unix")]
+#[cfg(unix)]
 #[tokio::main]
 async fn main() {
     tracing::subscriber::set_global_default(

pallas-network/src/facades.rs

@@ -5,15 +5,10 @@ use tokio::net::TcpListener;
 use tokio::task::JoinHandle;
 use tracing::{debug, error};
 
-#[cfg(not(target_os = "windows"))]
+#[cfg(unix)]
 use tokio::net::UnixListener;
 
-use crate::miniprotocols::handshake::{
-    n2c::VersionData, 
-    n2n, VersionTable,
-    Confirmation, 
-    VersionNumber
-};
+use crate::miniprotocols::handshake::{n2c, n2n, Confirmation, VersionNumber, VersionTable};
 
 use crate::miniprotocols::PROTOCOL_N2N_HANDSHAKE;
 use crate::{
@@ -160,9 +155,10 @@ pub struct NodeClient {
 }
 
 impl NodeClient {
-    
-    async fn connect_bearer(bearer:Bearer,versions: VersionTable<VersionData>) -> Result<Self, Error> {
-
+    async fn connect_bearer(
+        bearer: Bearer,
+        versions: VersionTable<n2c::VersionData>,
+    ) -> Result<Self, Error> {
         let mut plexer = multiplexer::Plexer::new(bearer);
 
         let hs_channel = plexer.subscribe_client(PROTOCOL_N2C_HANDSHAKE);
@@ -191,8 +187,7 @@ impl NodeClient {
         })
     }
 
-
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(unix)]
     pub async fn connect(path: impl AsRef<Path>, magic: u64) -> Result<Self, Error> {
         debug!("connecting");
 
@@ -202,25 +197,26 @@ impl NodeClient {
 
         let versions = handshake::n2c::VersionTable::v10_and_above(magic);
 
-        Self::connect_bearer(bearer,versions).await
+        Self::connect_bearer(bearer, versions).await
     }
 
-    #[cfg(target_os = "windows")]    
-    pub async fn connect(pipe_name: impl AsRef<std::ffi::OsStr>, magic: u64) -> Result<Self, Error> {
+    #[cfg(windows)]
+    pub async fn connect(
+        pipe_name: impl AsRef<std::ffi::OsStr>,
+        magic: u64,
+    ) -> Result<Self, Error> {
         debug!("connecting");
 
         let bearer = Bearer::connect_named_pipe(pipe_name)
             .await
             .map_err(Error::ConnectFailure)?;
-        
-        let versions = 
-            handshake::n2c::VersionTable::only_v10(magic);
 
-        Self::connect_bearer(bearer,versions).await
+        let versions = handshake::n2c::VersionTable::v10_and_above(magic);
 
+        Self::connect_bearer(bearer, versions).await
     }
 
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(unix)]
     pub async fn handshake_query(
         path: impl AsRef<Path>,
         magic: u64,
@@ -275,7 +271,7 @@ impl NodeClient {
 }
 
 /// Server of N2C Ouroboros.
-#[cfg(not(target_os = "windows"))]
+#[cfg(unix)]
 pub struct NodeServer {
     pub plexer_handle: JoinHandle<Result<(), crate::multiplexer::Error>>,
     pub version: (VersionNumber, n2c::VersionData),
@@ -283,7 +279,7 @@ pub struct NodeServer {
     pub statequery: localstate::Server,
 }
 
-#[cfg(not(target_os = "windows"))]
+#[cfg(unix)]
 impl NodeServer {
     pub async fn accept(listener: &UnixListener, magic: u64) -> Result<Self, Error> {
         let (bearer, _) = Bearer::accept_unix(listener)

pallas-network/src/multiplexer.rs

@@ -11,12 +11,9 @@ use tokio::sync::mpsc::error::SendError;
 use tokio::time::Instant;
 use tracing::{debug, error, trace};
 
-#[cfg(not(target_os = "windows"))]
+#[cfg(unix)]
 use tokio::net::{UnixListener, UnixStream};
 
-#[cfg(not(target_os = "windows"))]
-use tokio::net::UnixListener;
-
 #[cfg(windows)]
 use tokio::net::windows::named_pipe::NamedPipeClient;
 
@@ -65,16 +62,14 @@ pub struct Segment {
     pub payload: Payload,
 }
 
-#[cfg(target_os = "windows")]
 pub enum Bearer {
     Tcp(TcpStream),
-    NamedPipe(NamedPipeClient)
-}
 
-#[cfg(not(target_os = "windows"))]
-pub enum Bearer {
-    Tcp(TcpStream),
+    #[cfg(unix)]
     Unix(UnixStream),
+
+    #[cfg(windows)]
+    NamedPipe(NamedPipeClient),
 }
 
 const BUFFER_LEN: usize = 1024 * 10;
@@ -90,7 +85,13 @@ impl Bearer {
         Ok((Self::Tcp(stream), addr))
     }
 
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(unix)]
+    pub async fn connect_unix(path: impl AsRef<std::path::Path>) -> Result<Self, tokio::io::Error> {
+        let stream = UnixStream::connect(path).await?;
+        Ok(Self::Unix(stream))
+    }
+
+    #[cfg(unix)]
     pub async fn accept_unix(
         listener: &UnixListener,
     ) -> tokio::io::Result<(Self, tokio::net::unix::SocketAddr)> {
@@ -99,53 +100,60 @@ impl Bearer {
     }
 
     #[cfg(windows)]
-    pub async fn connect_named_pipe(pipe_name: impl AsRef<std::ffi::OsStr>) -> Result<Self, tokio::io::Error>{
+    pub async fn connect_named_pipe(
+        pipe_name: impl AsRef<std::ffi::OsStr>,
+    ) -> Result<Self, tokio::io::Error> {
+        // TODO: revisit if busy wait logic is required
         let client = loop {
             match tokio::net::windows::named_pipe::ClientOptions::new().open(&pipe_name) {
                 Ok(client) => break client,
-                Err(e) if e.raw_os_error() == Some(windows_sys::Win32::Foundation::ERROR_PIPE_BUSY as i32) => (),
+                Err(e)
+                    if e.raw_os_error()
+                        == Some(windows_sys::Win32::Foundation::ERROR_PIPE_BUSY as i32) =>
+                {
+                    ()
+                }
                 Err(e) => return Err(e),
             }
-        
+
             tokio::time::sleep(std::time::Duration::from_millis(50)).await;
         };
-        Ok(Self::NamedPipe(client))
-    }
 
-    #[cfg(not(target_os = "windows"))]
-    pub async fn connect_unix(path: impl AsRef<std::path::Path>) -> Result<Self, tokio::io::Error> {
-        let stream = UnixStream::connect(path).await?;
-        Ok(Self::Unix(stream))
+        Ok(Self::NamedPipe(client))
     }
 
     pub async fn readable(&mut self) -> tokio::io::Result<()> {
         match self {
             Bearer::Tcp(x) => x.readable().await,
-            #[cfg(not(target_os = "windows"))]
+
+            #[cfg(unix)]
             Bearer::Unix(x) => x.readable().await,
 
-            #[cfg(target_os = "windows")]
-            Bearer::NamedPipe(x) => x.readable().await
-            
+            #[cfg(windows)]
+            Bearer::NamedPipe(x) => x.readable().await,
         }
     }
 
     fn try_read(&mut self, buf: &mut [u8]) -> tokio::io::Result<usize> {
         match self {
             Bearer::Tcp(x) => x.try_read(buf),
-            #[cfg(not(target_os = "windows"))]
+
+            #[cfg(unix)]
             Bearer::Unix(x) => x.try_read(buf),
-            #[cfg(target_os = "windows")]
-            Bearer::NamedPipe(x) => x.try_read(buf)
+
+            #[cfg(windows)]
+            Bearer::NamedPipe(x) => x.try_read(buf),
         }
     }
 
     async fn write_all(&mut self, buf: &[u8]) -> tokio::io::Result<()> {
         match self {
             Bearer::Tcp(x) => x.write_all(buf).await,
-            #[cfg(not(target_os = "windows"))]
+
+            #[cfg(unix)]
             Bearer::Unix(x) => x.write_all(buf).await,
-            #[cfg(target_os = "windows")]
+
+            #[cfg(windows)]
             Bearer::NamedPipe(x) => x.write_all(buf).await,
         }
     }
@@ -153,9 +161,11 @@ impl Bearer {
     async fn flush(&mut self) -> tokio::io::Result<()> {
         match self {
             Bearer::Tcp(x) => x.flush().await,
-            #[cfg(not(target_os = "windows"))]
+
+            #[cfg(unix)]
             Bearer::Unix(x) => x.flush().await,
-            #[cfg(target_os = "windows")]
+
+            #[cfg(windows)]
             Bearer::NamedPipe(x) => x.flush().await,
         }
     }
@@ -203,7 +213,7 @@ impl SegmentBuffer {
 
             let remaining = required - self.1.len();
             let mut buf = vec![0u8; remaining];
-            
+
             match self.0.try_read(&mut buf) {
                 Ok(0) => {
                     error!("empty bearer");