From 5aeea9b619cbdc3776a23aa5a1c6547d42c7f427 Mon Sep 17 00:00:00 2001
From: Mathias Hall-Andersen <mathias@hall-andersen.dk>
Date: Fri, 16 Aug 2019 22:00:48 +0200
Subject: Begin drafting cross-platform interface

---
 src/platform/mod.rs |  2 ++
 src/platform/tun.rs | 10 ++++++++++
 src/platform/udp.rs | 11 +++++++++++
 3 files changed, 23 insertions(+)
 create mode 100644 src/platform/mod.rs
 create mode 100644 src/platform/tun.rs
 create mode 100644 src/platform/udp.rs

(limited to 'src/platform')

diff --git a/src/platform/mod.rs b/src/platform/mod.rs
new file mode 100644
index 0000000..46f712a
--- /dev/null
+++ b/src/platform/mod.rs
@@ -0,0 +1,2 @@
+mod tun;
+mod udp;
diff --git a/src/platform/tun.rs b/src/platform/tun.rs
new file mode 100644
index 0000000..45fd591
--- /dev/null
+++ b/src/platform/tun.rs
@@ -0,0 +1,10 @@
+use std::sync::atomic::AtomicUsize;
+use std::sync::Arc;
+
+pub trait Tun: Send + Sync {
+    type Error;
+
+    fn new(mtu: Arc<AtomicUsize>) -> Self;
+    fn read(&self, dst: &mut [u8]) -> Result<usize, Self::Error>;
+    fn write(&self, src: &[u8]) -> Result<(), Self::Error>;
+}
diff --git a/src/platform/udp.rs b/src/platform/udp.rs
new file mode 100644
index 0000000..f21a3d3
--- /dev/null
+++ b/src/platform/udp.rs
@@ -0,0 +1,11 @@
+/* Often times an a file descriptor in an atomic might suffice.
+ */
+pub trait Bind<Endpoint>: Send + Sync {
+    type Error;
+
+    fn new() -> Self;
+    fn set_port(&self, port: u16) -> Result<(), Self::Error>;
+    fn get_port(&self) -> u16;
+    fn recv(&self, dst: &mut [u8]) -> Endpoint;
+    fn send(&self, src: &[u8], dst: &Endpoint);
+}
-- 
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