Corrected libuv UDP bindings.

Author: Eric Reed

src/libstd/rt/uv/uvll.rs

@@ -201,14 +201,14 @@ pub unsafe fn udp_send<T>(req: *uv_udp_send_t, handle: *T, buf_in: &[uv_buf_t],
                           addr: *sockaddr_in, cb: *u8) -> c_int {
     let buf_ptr = vec::raw::to_ptr(buf_in);
     let buf_cnt = buf_in.len() as i32;
-    return rust_uv_udp_send(req, handle, buf_ptr, buf_cnt, addr, cb);
+    return rust_uv_udp_send(req, handle as *c_void, buf_ptr, buf_cnt, addr, cb);
 }
 
 pub unsafe fn udp_send6<T>(req: *uv_udp_send_t, handle: *T, buf_in: &[uv_buf_t],
                           addr: *sockaddr_in6, cb: *u8) -> c_int {
     let buf_ptr = vec::raw::to_ptr(buf_in);
     let buf_cnt = buf_in.len() as i32;
-    return rust_uv_udp_send(req, handle, buf_ptr, buf_cnt, addr, cb);
+    return rust_uv_udp_send(req, handle as *c_void, buf_ptr, buf_cnt, addr, cb);
 }
 
 pub unsafe fn udp_recv_start(server: *uv_udp_t, on_alloc: *u8, on_recv: *u8) -> c_int {

src/rt/rust_uv.cpp

@@ -293,6 +293,43 @@ rust_uv_tcp_getpeername6
     return uv_tcp_getpeername(handle, (sockaddr*)name, &namelen);
 }
 
+extern "C" int
+rust_uv_udp_init(uv_loop_t* loop, uv_udp_t* handle) {
+    return uv_udp_init(loop, handle);
+}
+
+extern "C" int
+rust_uv_udp_bind(uv_udp_t* server, sockaddr_in* addr_ptr, unsigned flags) {
+    return uv_udp_bind(server, *addr_ptr, flags);
+}
+
+extern "C" int
+rust_uv_udp_bind6(uv_udp_t* server, sockaddr_in6* addr_ptr, unsigned flags) {
+    return uv_udp_bind6(server, *addr_ptr, flags);
+}
+
+extern "C" int
+rust_uv_udp_send(uv_udp_send_t* req, uv_udp_t* handle, uv_buf_t* buf_in, 
+                 int buf_cnt, sockaddr_in* addr_ptr, uv_udp_send_cb cb) {
+    return uv_udp_send(req, handle, buf_in, buf_cnt, *addr_ptr, cb);
+}
+
+extern "C" int
+rust_uv_udp_send6(uv_udp_send_t* req, uv_udp_t* handle, uv_buf_t* buf_in, 
+                  int buf_cnt, sockaddr_in6* addr_ptr, uv_udp_send_cb cb) {
+    return uv_udp_send6(req, handle, buf_in, buf_cnt, *addr_ptr, cb);
+}
+
+extern "C" int
+rust_uv_udp_recv_start(uv_udp_t* server, uv_alloc_cb on_alloc, uv_udp_recv_cb on_read) {
+    return uv_udp_recv_start(server, on_alloc, on_read);
+}
+
+extern "C" int
+rust_uv_udp_recv_stop(uv_udp_t* server) {
+    return uv_udp_recv_stop(server);
+}
+
 extern "C" int
 rust_uv_listen(uv_stream_t* stream, int backlog,
         uv_connection_cb cb) {

src/rt/rustrt.def.in

@@ -104,6 +104,13 @@ rust_uv_tcp_connect
 rust_uv_tcp_bind
 rust_uv_tcp_connect6
 rust_uv_tcp_bind6
+rust_uv_udp_init
+rust_uv_udp_bind
+rust_uv_udp_bind6
+rust_uv_udp_send
+rust_uv_udp_send6
+rust_uv_udp_recv_start
+rust_uv_udp_recv_stop
 rust_uv_listen
 rust_uv_accept
 rust_uv_write
@@ -239,4 +246,4 @@ rust_valgrind_stack_deregister
 rust_take_env_lock
 rust_drop_env_lock
 rust_update_log_settings
-rust_get_num_cpus
+rust_get_num_cpus