- (djm) [atomicio.c configure.ac] Disable poll() fallback in atomiciov for

   Tru64. readv doesn't seem to be a comparable object there.
   bz#1386, patch from dtucker@ ok me

1 files changed, 4 insertions, 0 deletions

diff --git a/atomicio.c b/atomicio.c
index bb44c3230..a6b2d127a 100644
--- a/atomicio.c
+++ b/atomicio.c
@@ -97,8 +97,10 @@ atomiciov(ssize_t (*f) (int, const struct iovec *, int), int fd,
         /* Make a copy of the iov array because we may modify it below */
         memcpy(iov, _iov, iovcnt * sizeof(*_iov));
 
+#ifndef BROKEN_READV_COMPARISON
         pfd.fd = fd;
         pfd.events = f == readv ? POLLIN : POLLOUT;
+#endif
         for (; iovcnt > 0 && iov[0].iov_len > 0;) {
                 res = (f) (fd, iov, iovcnt);
                 switch (res) {
@@ -106,7 +108,9 @@ atomiciov(ssize_t (*f) (int, const struct iovec *, int), int fd,
                         if (errno == EINTR)
                                 continue;
                         if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#ifndef BROKEN_READV_COMPARISON
                                 (void)poll(&pfd, 1, -1);
+#endif
                                 continue;
                         }
                         return 0;