From: Bruno Haible <bruno@clisp.org>
Date: Thu, 31 Dec 2020 22:49:25 +0000 (+0100)
Subject: poll tests: Avoid test failure on AIX.
X-Git-Tag: v1.0~3256
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ae3a9135fe025f0a4e99f403e57cec09183bbd92;p=thirdparty%2Fgnulib.git

poll tests: Avoid test failure on AIX.

* tests/test-poll.c (test_pipe): Disable the "expecting POLLHUP after
shutdown" test on AIX.
* doc/posix-functions/poll.texi: Mention the AIX bug.
---

diff --git a/ChangeLog b/ChangeLog
index f2d18546e0..bf98e8005c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2020-12-31  Bruno Haible  <bruno@clisp.org>
+
+	poll tests: Avoid test failure on AIX.
+	* tests/test-poll.c (test_pipe): Disable the "expecting POLLHUP after
+	shutdown" test on AIX.
+	* doc/posix-functions/poll.texi: Mention the AIX bug.
+
 2020-12-31  Bruno Haible  <bruno@clisp.org>
 
 	poll tests: Avoid test failure on BSD and Solaris systems.
diff --git a/doc/posix-functions/poll.texi b/doc/posix-functions/poll.texi
index a04d3b8b18..c1efe87ad9 100644
--- a/doc/posix-functions/poll.texi
+++ b/doc/posix-functions/poll.texi
@@ -23,8 +23,8 @@ Portability problems not fixed by Gnulib:
 Under Windows, when passing a pipe, Gnulib's @code{poll} replacement might
 return 0 even before the timeout has passed.  Programs using it with pipes can
 thus busy wait.
-
 @item
-Under HP NonStop, file descriptors other than sockets do not support
-POLLHUP; they will return a "readable" status instead.
+On some platforms, file descriptors other than sockets do not support
+POLLHUP; they will return a "readable" or "writable" status instead:
+AIX 7.2, HP NonStop.
 @end itemize
diff --git a/tests/test-poll.c b/tests/test-poll.c
index 05248d8f8f..5105620ab0 100644
--- a/tests/test-poll.c
+++ b/tests/test-poll.c
@@ -362,8 +362,13 @@ test_pipe (void)
   ASSERT (pipe (fd) >= 0);
   test_pair (fd[0], fd[1]);
   close (fd[0]);
-  if ((poll1_wait (fd[1], POLLIN | POLLOUT) & (POLLHUP | POLLERR)) == 0)
+  int revents = poll1_wait (fd[1], POLLIN | POLLOUT);
+#if !defined _AIX
+  if ((revents & (POLLHUP | POLLERR)) == 0)
     failed ("expecting POLLHUP after shutdown");
+#else
+  (void) revents;
+#endif
 
   close (fd[1]);
 }