1 files changed, 39 insertions, 0 deletions
diff --git a/ext/-test-/wait/wait.c b/ext/-test-/wait/wait.c
new file mode 100644
index 0000000000..b73ee35809
--- /dev/null
+++ b/ext/-test-/wait/wait.c
@@ -0,0 +1,39 @@
+#include "ruby/ruby.h"
+#include "ruby/io.h"
+
+static VALUE
+io_wait(VALUE klass, VALUE io, VALUE events, VALUE timeout)
+{
+    return rb_io_wait(io, events, timeout);
+}
+
+static VALUE
+io_maybe_wait(VALUE klass, VALUE error, VALUE io, VALUE events, VALUE timeout)
+{
+    return rb_io_maybe_wait(RB_NUM2INT(error), io, events, timeout);
+}
+
+static VALUE
+io_maybe_wait_readable(VALUE klass, VALUE error, VALUE io, VALUE timeout)
+{
+    return RB_INT2NUM(
+        rb_io_maybe_wait_readable(RB_NUM2INT(error), io, timeout)
+    );
+}
+
+static VALUE
+io_maybe_wait_writable(VALUE klass, VALUE error, VALUE io, VALUE timeout)
+{
+    return RB_INT2NUM(
+        rb_io_maybe_wait_writable(RB_NUM2INT(error), io, timeout)
+    );
+}
+
+void
+Init_wait(void)
+{
+    rb_define_singleton_method(rb_cIO, "io_wait", io_wait, 3);
+    rb_define_singleton_method(rb_cIO, "io_maybe_wait", io_maybe_wait, 4);
+    rb_define_singleton_method(rb_cIO, "io_maybe_wait_readable", io_maybe_wait_readable, 3);
+    rb_define_singleton_method(rb_cIO, "io_maybe_wait_writable", io_maybe_wait_writable, 3);
+}