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merge revision(s) 55613: [Backport #12575]

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* thread.c (rb_wait_for_single_fd): Clean up fds.revents every time
	  before calling ppoll(2). [Bug #12575] [ruby-dev:49725]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@55924 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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usa 2016-08-16 04:43:40 +00:00
parent 89594c0370
commit be4b713d53
3 changed files with 7 additions and 1 deletions
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thread.c
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@ -3620,6 +3620,7 @@ rb_wait_for_single_fd(int fd, int events, struct timeval *tv)
fds.events = (short)events;
retry:
fds.revents = 0;
lerrno = 0;
BLOCKING_REGION({
result = ppoll(&fds, 1, timeout, NULL);