* cont.c (rb_cont_call): forbid calling dead fiber with

  Cotinuation#call.



git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@12447 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/cont.c b/cont.c
index 265e743a9..367d03375 100644
--- a/cont.c
+++ b/cont.c
@@ -344,6 +344,14 @@ rb_cont_call(int argc, VALUE *argv, VALUE contval)
     if (cont->saved_thread.trap_tag != th->trap_tag) {
 	rb_raise(rb_eRuntimeError, "continuation called across trap");
     }
+    if (cont->saved_thread.fiber) {
+	rb_context_t *fcont;
+	GetContPtr(cont->saved_thread.fiber, fcont);
+
+	if (!fcont->alive) {
+	    rb_raise(rb_eRuntimeError, "continuation called dead fiber");
+	}
+    }
 
     cont->value = make_passing_arg(argc, argv);