Add sys::select::FdSet and sys::select::select.

1 files changed, 42 insertions, 0 deletions

diff --git a/test/sys/test_select.rs b/test/sys/test_select.rs
new file mode 100644
index 00000000..c9331886
--- /dev/null
+++ b/test/sys/test_select.rs
@@ -0,0 +1,42 @@
+use nix::sys::select::{FdSet, FD_SETSIZE, select};
+use nix::sys::time::TimeVal;
+use nix::unistd::{read, write, pipe};
+
+#[test]
+fn test_fdset() {
+    let mut fd_set = FdSet::new();
+
+    for i in 0..FD_SETSIZE {
+        assert!(!fd_set.contains(i));
+    }
+
+    fd_set.insert(7);
+
+    assert!(fd_set.contains(7));
+
+    fd_set.remove(7);
+
+    for i in 0..FD_SETSIZE {
+        assert!(!fd_set.contains(i));
+    }
+}
+
+#[test]
+fn test_select() {
+    let (r1, w1) = pipe().unwrap();
+    write(w1, b"hi!").unwrap();
+    let (r2, w2) = pipe().unwrap();
+
+    let mut fd_set = FdSet::new();
+    fd_set.insert(r1);
+    fd_set.insert(r2);
+
+    let mut timeout = TimeVal::seconds(1);
+    assert_eq!(1, select(r2 + 1,
+                         Some(&mut fd_set),
+                         None,
+                         None,
+                         &mut timeout).unwrap());
+    assert!(fd_set.contains(r1));
+    assert!(!fd_set.contains(r2));
+}