2 files changed, 36 insertions, 0 deletions
diff --git a/ext/-test-/gvl/call_without_gvl/call_without_gvl.c b/ext/-test-/gvl/call_without_gvl/call_without_gvl.c
new file mode 100644
index 0000000000..0ee64a24ac
--- /dev/null
+++ b/ext/-test-/gvl/call_without_gvl/call_without_gvl.c
@@ -0,0 +1,35 @@
+#include "ruby/ruby.h"
+#include "ruby/thread.h"
+#include <sys/select.h>
+
+static void*
+native_sleep_callback(void *data)
+{
+    struct timeval *timeval = data;
+    select(0, NULL, NULL, NULL, timeval);
+
+    return NULL;
+}
+
+
+static VALUE
+thread_runnable_sleep(VALUE thread, VALUE timeout)
+{
+    struct timeval timeval;
+
+    if (NIL_P(timeout)) {
+	rb_raise(rb_eArgError, "timeout must be non nil");
+    }
+
+    timeval = rb_time_interval(timeout);
+
+    rb_thread_call_without_gvl(native_sleep_callback, &timeval, RUBY_UBF_IO, NULL);
+
+    return thread;
+}
+
+void
+Init_call_without_gvl(void)
+{
+    rb_define_method(rb_cThread, "__runnable_sleep__", thread_runnable_sleep, 1);
+}
diff --git a/ext/-test-/gvl/call_without_gvl/extconf.rb b/ext/-test-/gvl/call_without_gvl/extconf.rb
new file mode 100644
index 0000000000..601944c9e5
--- /dev/null
+++ b/ext/-test-/gvl/call_without_gvl/extconf.rb
@@ -0,0 +1 @@
+create_makefile("-test-/gvl/call_without_gvl")