Add rwcancelation to darwin

3 files changed, 27 insertions, 2 deletions

diff --git a/rwcancel/rwcancel_unix.go b/rwcancel/rwcancel_unix.go
index cd3661f..7f2c9e0 100644
--- a/rwcancel/rwcancel_unix.go
+++ b/rwcancel/rwcancel_unix.go
@@ -77,7 +77,7 @@ func (rw *RWCancel) ReadyRead() bool {
 	fdset := fdSet{}
 	fdset.set(rw.fd)
 	fdset.set(closeFd)
-	_, err := unix.Select(max(rw.fd, closeFd)+1, &fdset.fdset, nil, nil, nil)
+	err := unixSelect(max(rw.fd, closeFd)+1, &fdset.fdset, nil, nil, nil)
 	if err != nil {
 		return false
 	}
@@ -92,7 +92,7 @@ func (rw *RWCancel) ReadyWrite() bool {
 	fdset := fdSet{}
 	fdset.set(rw.fd)
 	fdset.set(closeFd)
-	_, err := unix.Select(max(rw.fd, closeFd)+1, nil, &fdset.fdset, nil, nil)
+	err := unixSelect(max(rw.fd, closeFd)+1, nil, &fdset.fdset, nil, nil)
 	if err != nil {
 		return false
 	}
diff --git a/rwcancel/select_darwin.go b/rwcancel/select_darwin.go
new file mode 100644
index 0000000..d14edc8
--- /dev/null
+++ b/rwcancel/select_darwin.go
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+package rwcancel
+
+import "golang.org/x/sys/unix"
+
+func unixSelect(nfd int, r *unix.FdSet, w *unix.FdSet, e *unix.FdSet, timeout *unix.Timeval) error {
+	return unix.Select(nfd, r, w, e, timeout)
+}
diff --git a/rwcancel/select_linux.go b/rwcancel/select_linux.go
new file mode 100644
index 0000000..c3d4e27
--- /dev/null
+++ b/rwcancel/select_linux.go
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+package rwcancel
+
+import "golang.org/x/sys/unix"
+
+func unixSelect(nfd int, r *unix.FdSet, w *unix.FdSet, e *unix.FdSet, timeout *unix.Timeval) (err error) {
+	_, err = unix.Select(nfd, r, w, e, timeout)
+	return
+}