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* thread.c (rb_wait_for_single_fd): Fix wrong return value.

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* test/-ext-/wait_for_single_fd/test_wait_for_single_fd.rb
(TestWaitForSingleFD#test_wait_for_closed_pipe): test for it.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31429 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-05-04 10:02:06 +00:00
parent 2a989121db
commit c06da4735d
3 changed files with 41 additions and 9 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Wed May 4 19:00:59 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread.c (rb_wait_for_single_fd): Fix wrong return value.
* test/-ext-/wait_for_single_fd/test_wait_for_single_fd.rb
(TestWaitForSingleFD#test_wait_for_closed_pipe): test for it.
Wed May 4 18:46:39 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* ext/-test-/wait_for_single_fd: New. for testing

10
test/-ext-/wait_for_single_fd/test_wait_for_single_fd.rb
View file

@ -29,4 +29,14 @@ class TestWaitForSingleFD < Test::Unit::TestCase
end
end
end
def test_wait_for_closed_pipe
with_pipe do |r,w|
w.close
rc = IO.wait_for_single_fd(r.fileno, RB_WAITFD_IN, nil)
assert_equal RB_WAITFD_IN, rc
end
end
end

34
thread.c
View file

@ -2714,6 +2714,13 @@ rb_thread_fd_select(int max, rb_fdset_t * read, rb_fdset_t * write, rb_fdset_t *
#endif
#ifdef USE_POLL
/* The same with linux kernel. TODO: make platform independent definition. */
#define POLLIN_SET (POLLRDNORM | POLLRDBAND | POLLIN | POLLHUP | POLLERR)
#define POLLOUT_SET (POLLWRBAND | POLLWRNORM | POLLOUT | POLLERR)
#define POLLEX_SET (POLLPRI)
/*
* returns a mask of events
*/
@ -2736,15 +2743,6 @@ retry:
if (result < 0) lerrno = errno;
}, ubf_select, GET_THREAD());
if (result > 0) {
if (fds.revents & POLLNVAL) {
errno = EBADF;
return -1;
}
result = (int)(fds.revents & fds.events);
return result == 0 ? events : result;
}
if (result < 0) {
errno = lerrno;
switch (errno) {
@ -2759,8 +2757,26 @@ retry:
}
goto retry;
}
return -1;
}
if (fds.revents & POLLNVAL) {
errno = EBADF;
return -1;
}
/*
* POLLIN, POLLOUT have a different meanings from select(2)'s read/write bit.
* Therefore we need fix it up.
*/
result = 0;
if (fds.revents & POLLIN_SET)
result |= RB_WAITFD_IN;
if (fds.revents & POLLOUT_SET)
result |= RB_WAITFD_OUT;
if (fds.revents & POLLEX_SET)
result |= RB_WAITFD_PRI;
return result;
}
#else /* ! USE_POLL - implement rb_io_poll_fd() using select() */