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Thank you for the problem info and research into it.
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<div class="">The easiest way to resolve this is to let the reactor event loop run and read things from the notify pipe.</div>
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<div class="">-Steve</div>
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<div class="">On Nov 28, 2016, at 3:12 AM, Jack Wong <<a href="mailto:pandawkx@163.com" class="">pandawkx@163.com</a>> wrote:</div>
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<div class=""><span style="font-family: arial; white-space: pre-wrap; widows: 1;" class="">ACE VERSION: 6.3.0</span></div>
<div class="">(this bug still exists in version 6.4.0)</div>
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<div class="">Our test codes looks like this:</div>
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<div class="">1:while (true)</div>
<div class="">2:{</div>
<div class="">3: reactor()->purge_pending_notifications(xxx);</div>
<div class="">4: reactor()->notify(xxx);</div>
<div class="">5:}</div>
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<div class="">after a while , we found dead-lock occurs at line 4.</div>
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<div class="">－－－－－－－－－－－－－－－－－－－－－－－－－</div>
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<div class="">I check the code and found that :</div>
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<div class="">purge_pending_notifications can only purge message in notify queue</div>
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<div class="">messages in pipe can not be purged</div>
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<div class="">so calling notify() after purge_pending_notifications() can always leads one message be write to pipe</div>
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<div class="">So when I keep calling like this , soon buffer of pipe will full and notify() will be blocked , then dead-lock occurs</div>
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<div class="">－－－－－－－－－－－－－－－－－－－－－－－－－</div>
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<div class="">we are using this two interfaces building important functions of our application</div>
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<div class="">we will appreciate it if this bug being fixed soon</div>
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<div class="">－－－－－－－－－－－－－－－－－－－－－－－－－</div>
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<div class="">poor English, sorry!</div>
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