core::rt: Fix TCP test on mac

src/libcore/rt/io/mod.rs

@@ -348,7 +348,8 @@ pub enum IoErrorKind {
     ConnectionFailed,
     Closed,
     ConnectionRefused,
-    ConnectionReset
+    ConnectionReset,
+    BrokenPipe
 }
 
 // XXX: Can't put doc comments on macros

src/libcore/rt/io/net/tcp.rs

@@ -233,7 +233,8 @@ fn write_close() {
                 loop {
                     let mut stop = false;
                     do io_error::cond.trap(|e| {
-                        assert!(e.kind == ConnectionReset);
+                        // NB: ECONNRESET on linux, EPIPE on mac
+                        assert!(e.kind == ConnectionReset || e.kind == BrokenPipe);
                         stop = true;
                     }).in {
                         stream.write(buf);

src/libcore/rt/uv/mod.rs

@@ -272,7 +272,9 @@ unsafe fn c_str_to_static_slice(s: *libc::c_char) -> &'static str {
             EACCES => PermissionDenied,
             ECONNREFUSED => ConnectionRefused,
             ECONNRESET => ConnectionReset,
-            _ => {
+            EPIPE => BrokenPipe,
+            e => {
+                rtdebug!("e %u", e as uint);
                 // XXX: Need to map remaining uv error types
                 OtherIoError
             }

src/libcore/rt/uv/uvll.rs

@@ -40,6 +40,7 @@
 pub static EACCES: c_int = 3;
 pub static ECONNREFUSED: c_int = 12;
 pub static ECONNRESET: c_int = 13;
+pub static EPIPE: c_int = 36;
 
 pub struct uv_err_t {
     code: c_int,