Import mio-0.7.3

Test: None
Change-Id: I7df903972aaf06adb1ecb20a63793fcf128edb8f

1 files changed, 27 insertions, 0 deletions

diff --git a/src/sys/windows/udp.rs b/src/sys/windows/udp.rs
new file mode 100644
index 0000000..667c775
--- /dev/null
+++ b/src/sys/windows/udp.rs
@@ -0,0 +1,27 @@
+use std::io;
+use std::net::{self, SocketAddr};
+use std::os::windows::io::FromRawSocket;
+use std::os::windows::raw::SOCKET as StdSocket; // winapi uses usize, stdlib uses u32/u64.
+
+use winapi::um::winsock2::{bind as win_bind, closesocket, SOCKET_ERROR, SOCK_DGRAM};
+
+use crate::sys::windows::net::{init, new_ip_socket, socket_addr};
+
+pub fn bind(addr: SocketAddr) -> io::Result<net::UdpSocket> {
+    init();
+    new_ip_socket(addr, SOCK_DGRAM).and_then(|socket| {
+        let (raw_addr, raw_addr_length) = socket_addr(&addr);
+        syscall!(
+            win_bind(socket, raw_addr, raw_addr_length,),
+            PartialEq::eq,
+            SOCKET_ERROR
+        )
+        .map_err(|err| {
+            // Close the socket if we hit an error, ignoring the error
+            // from closing since we can't pass back two errors.
+            let _ = unsafe { closesocket(socket) };
+            err
+        })
+        .map(|_| unsafe { net::UdpSocket::from_raw_socket(socket as StdSocket) })
+    })
+}