diff options
Diffstat (limited to 'variable.c')
| -rw-r--r-- | variable.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/variable.c b/variable.c index cfc987eb9e..6e883c7041 100644 --- a/variable.c +++ b/variable.c @@ -2095,7 +2095,7 @@ autoload_reset(VALUE arg) VALUE th = cur->thread; cur->thread = Qfalse; - list_del(&cur->waitq.node); + list_del_init(&cur->waitq.node); /* idempotent */ /* * cur is stored on the stack of cur->waiting_th, @@ -2108,6 +2108,34 @@ autoload_reset(VALUE arg) return 0; /* ignored */ } +static VALUE +autoload_sleep(VALUE arg) +{ + struct autoload_state *state = (struct autoload_state *)arg; + + /* + * autoload_reset in other thread will resume us and remove us + * from the waitq list + */ + do { + rb_thread_sleep_deadly(); + } while (state->thread != Qfalse); + + return Qfalse; +} + +static VALUE +autoload_sleep_done(VALUE arg) +{ + struct autoload_state *state = (struct autoload_state *)arg; + + if (state->thread != Qfalse && rb_thread_to_be_killed(state->thread)) { + list_del_init(&state->waitq.node); /* idempotent */ + } + + return Qfalse; +} + VALUE rb_autoload_load(VALUE mod, ID id) { @@ -2145,13 +2173,9 @@ rb_autoload_load(VALUE mod, ID id) } else { list_add_tail(&ele->state->waitq.head, &state.waitq.node); - /* - * autoload_reset in other thread will resume us and remove us - * from the waitq list - */ - do { - rb_thread_sleep_deadly(); - } while (state.thread != Qfalse); + + rb_ensure(autoload_sleep, (VALUE)&state, + autoload_sleep_done, (VALUE)&state); } /* autoload_data_i can be deleted by another thread while require */ |