yiguolei commented on code in PR #52816:
URL: https://github.com/apache/doris/pull/52816#discussion_r2186283809
##########
be/src/cloud/cloud_meta_mgr.cpp:
##########
@@ -131,6 +131,22 @@ Status bthread_fork_join(const
std::vector<std::function<Status()>>& tasks, int
return status;
}
+void bthread_fork_join(const std::vector<std::function<Status()>>& tasks, int
concurrency,
+ std::future<Status>* fut) {
+ // std::function will cause `copy`, we need to use heap memory to avoid
copy ctor called
+ auto prom = std::make_shared<std::promise<Status>>();
+ *fut = prom->get_future();
+ std::function<void()>* fn =
+ new std::function<void()>([&tasks, concurrency, p =
std::move(prom)]() mutable {
+ p->set_value(bthread_fork_join(tasks, concurrency));
+ });
+
+ bthread_t bthread_id;
+ if (bthread_start_background(&bthread_id, nullptr, run_bthread_work, fn)
!= 0) {
+ run_bthread_work(fn);
Review Comment:
这里如果145 行启动bthread 失败，我们这里这里直接返回 error status？没必要再尝试一次了吧？
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