refactor aquatic_udp_protocol, notably make converters trait fns

aquatic_udp_protocol/src/common.rs

@@ -0,0 +1,101 @@
+use std::net::IpAddr;
+
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub enum IpVersion {
+    IPv4,
+    IPv6
+}
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct AnnounceInterval (pub i32);
+
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct InfoHash (pub [u8; 20]);
+
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct ConnectionId (pub i64);
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct TransactionId (pub i32);
+
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct NumberOfBytes (pub i64);
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct NumberOfPeers (pub i32);
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct NumberOfDownloads (pub i32);
+
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct Port (pub u16);
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug, PartialOrd, Ord)]
+pub struct PeerId (pub [u8; 20]);
+
+#[derive(PartialEq, Eq, Hash, Clone, Copy, Debug)]
+pub struct PeerKey (pub u32);
+
+
+#[derive(Hash, PartialEq, Eq, Clone, Debug)]
+pub struct ResponsePeer {
+    pub ip_address: IpAddr,
+    pub port: Port,
+}
+
+
+
+#[cfg(test)]
+impl quickcheck::Arbitrary for IpVersion {
+    fn arbitrary<G: quickcheck::Gen>(g: &mut G) -> Self {
+        if bool::arbitrary(g) {
+            IpVersion::IPv4
+        } else {
+            IpVersion::IPv6
+        }
+    }
+}
+
+
+#[cfg(test)]
+impl quickcheck::Arbitrary for InfoHash {
+    fn arbitrary<G: quickcheck::Gen>(g: &mut G) -> Self {
+        let mut bytes = [0u8; 20];
+
+        for byte in bytes.iter_mut() {
+            *byte = u8::arbitrary(g);
+        }
+
+        Self(bytes)
+    }
+}
+
+
+#[cfg(test)]
+impl quickcheck::Arbitrary for PeerId {
+    fn arbitrary<G: quickcheck::Gen>(g: &mut G) -> Self {
+        let mut bytes = [0u8; 20];
+
+        for byte in bytes.iter_mut() {
+            *byte = u8::arbitrary(g);
+        }
+
+        Self(bytes)
+    }
+}
+
+
+#[cfg(test)]
+impl quickcheck::Arbitrary for ResponsePeer {
+    fn arbitrary<G: quickcheck::Gen>(g: &mut G) -> Self {
+        Self {
+            ip_address: ::std::net::IpAddr::arbitrary(g),
+            port: Port(u16::arbitrary(g)),
+        }
+    }
+}