* cont.c (rb_fiber_reset_root_local_storage): add a new function to

  restore rb_thread_t::local_storage.

* cont.c (rb_obj_is_fiber): add a new function to tell finalizer to
  prevent fibers from destroy.

* gc.c (rb_objspace_call_finalizer): don't sweep fibers at finalizing
  objspace.

* internal.h (rb_fiber_reset_root_local_storage, rb_obj_is_fiber):
  add prototypes.

* vm.c (ruby_vm_destruct): reset main thread's local_storage before
  free main thread. rb_thread_t::local_storage is replaced by fiber's
  local storage when forked from fiber, and it should be already freed
  when the fiber was destroyed.

* test/ruby/test_fiber.rb (test_fork_from_fiber): add test for fork
  from fiber.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34629 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index 86217098cb..1d343cecf9 100644
--- a/vm.c
+++ b/vm.c
@@ -1611,6 +1611,7 @@ ruby_vm_destruct(rb_vm_t *vm)
 	rb_gc_force_recycle(vm->self);
 	vm->main_thread = 0;
 	if (th) {
+	    rb_fiber_reset_root_local_storage(th->self);
 	    thread_free(th);
 	}
 	if (vm->living_threads) {