[ace-bugs] [ACE]: [calling purge_pending_notifications() before notify() leads to dead-lock]

[Jack Wong]

ACE VERSION: 6.3.0
(this bug still exists in version 6.4.0)


Our test codes looks like this:


1:while (true)
2:{
3:    reactor()->purge_pending_notifications(xxx);
4:    reactor()->notify(xxx);
5:}


after a while , we found dead-lock occurs at  line 4.


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I check the code and found that :


purge_pending_notifications can only purge message in notify queue


messages in pipe can not be purged


so calling notify() after purge_pending_notifications() can always leads one message be write to pipe


So when I keep calling like this , soon buffer of pipe will full and notify() will be blocked , then dead-lock occurs


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we are using this two interfaces building important functions of our application


we will appreciate it if this bug being fixed soon


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poor English, sorry!
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