yanglimingcn commented on code in PR #1751:
URL: https://github.com/apache/incubator-brpc/pull/1751#discussion_r858258186


##########
src/bthread/butex.cpp:
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@@ -284,15 +286,19 @@ int butex_wake(void* arg, bool nosched) {
         if (!nosched) {
             TaskGroup::exchange(&g, bbw->tid);

Review Comment:
   exchange是希望调度的,所以应该是默认signal的,此外exchange也没有nosignal的参数



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