standards-version: 3.9.5

[gnulib.git] / lib / poll.c

diff --git a/lib/poll.c b/lib/poll.c
index 9688677..e9e9eb9 100644 (file)
--- a/lib/poll.c
+++ b/lib/poll.c
@@ -1,7 +1,7 @@
 /* Emulation for poll(2)
    Contributed by Paolo Bonzini.
 
-   Copyright 2001-2003, 2006-2012 Free Software Foundation, Inc.
+   Copyright 2001-2003, 2006-2014 Free Software Foundation, Inc.
 
    This file is part of gnulib.
 
@@ -16,8 +16,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 /* Tell gcc not to warn about the (nfd < 0) tests, below.  */
 #if (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) || 4 < __GNUC__
@@ -73,7 +72,7 @@
 
 /* Optimized test whether a HANDLE refers to a console.
    See <http://lists.gnu.org/archive/html/bug-gnulib/2009-08/msg00065.html>.  */
-#define IsConsoleHandle(h) (((long) (h) & 3) == 3)
+#define IsConsoleHandle(h) (((intptr_t) (h) & 3) == 3)
 
 static BOOL
 IsSocketHandle (HANDLE h)
@@ -163,11 +162,12 @@ windows_compute_revents (HANDLE h, int *p_sought)
         {
           /* It was the write-end of the pipe.  Check if it is writable.
              If NtQueryInformationFile fails, optimistically assume the pipe is
-             writable.  This could happen on Win9x, where NtQueryInformationFile
-             is not available, or if we inherit a pipe that doesn't permit
-             FILE_READ_ATTRIBUTES access on the write end (I think this should
-             not happen since WinXP SP2; WINE seems fine too).  Otherwise,
-             ensure that enough space is available for atomic writes.  */
+             writable.  This could happen on Windows 9x, where
+             NtQueryInformationFile is not available, or if we inherit a pipe
+             that doesn't permit FILE_READ_ATTRIBUTES access on the write end
+             (I think this should not happen since Windows XP SP2; WINE seems
+             fine too).  Otherwise, ensure that enough space is available for
+             atomic writes.  */
           memset (&iosb, 0, sizeof (iosb));
           memset (&fpli, 0, sizeof (fpli));
 
@@ -303,6 +303,10 @@ compute_revents (int fd, int sought, fd_set *rfds, fd_set *wfds, fd_set *efds)
                || socket_errno == ECONNABORTED || socket_errno == ENETRESET)
         happened |= POLLHUP;
 
+      /* some systems can't use recv() on non-socket, including HP NonStop */
+      else if (socket_errno == ENOTSOCK)
+        happened |= (POLLIN | POLLRDNORM) & sought;
+
       else
         happened |= POLLERR;
     }
@@ -350,7 +354,7 @@ poll (struct pollfd *pfd, nfds_t nfd, int timeout)
 
   /* EFAULT is not necessary to implement, but let's do it in the
      simplest case. */
-  if (!pfd)
+  if (!pfd && nfd)
     {
       errno = EFAULT;
       return -1;
@@ -598,7 +602,7 @@ restart:
 
   if (!rc && timeout == INFTIM)
     {
-      SwitchToThread();
+      SleepEx (1, TRUE);
       goto restart;
     }