1 files changed, 21 insertions, 0 deletions
diff --git a/ext/-test-/debug/profile_frames.c b/ext/-test-/debug/profile_frames.c
index d2bba7d183..f9a77a5a78 100644
--- a/ext/-test-/debug/profile_frames.c
+++ b/ext/-test-/debug/profile_frames.c
@@ -37,8 +37,29 @@ profile_frames(VALUE self, VALUE start_v, VALUE num_v)
     return result;
 }
 
+static VALUE
+profile_thread_frames(VALUE self, VALUE thread, VALUE start_v, VALUE num_v)
+{
+    int i, collected_size;
+    int start = NUM2INT(start_v);
+    int buff_size = NUM2INT(num_v);
+    VALUE buff[MAX_BUF_SIZE];
+    int lines[MAX_BUF_SIZE];
+    VALUE result = rb_ary_new();
+
+    if (buff_size > MAX_BUF_SIZE) rb_raise(rb_eRuntimeError, "too long buff_size");
+
+    collected_size = rb_profile_thread_frames(thread, start, buff_size, buff, lines);
+    for (i=0; i<collected_size; i++) {
+        rb_ary_push(result, rb_profile_frame_full_label(buff[i]));
+    }
+
+    return result;
+}
+
 void
 Init_profile_frames(VALUE klass)
 {
     rb_define_module_function(klass, "profile_frames", profile_frames, 2);
+    rb_define_module_function(klass, "profile_thread_frames", profile_thread_frames, 3);
 }