Method _release_last_context

src/bthread/task_group.cpp:483–492

}

void TaskGroup::_release_last_context(void* arg) {
    TaskMeta* m = static_cast<TaskMeta*>(arg);
    if (m->stack_type() != STACK_TYPE_PTHREAD) {
        return_stack(m->release_stack()/*may be NULL*/);
    } else {
        // it's _main_stack, don't return.
        m->set_stack(NULL);
    }
    return_resource(get_slot(m->tid));
}

int TaskGroup::start_foreground(TaskGroup** pg,
                                bthread_t* __restrict th,