/* 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) {
if (errno == EINTR)
continue;
if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#ifndef BROKEN_READV_COMPARISON
(void)poll(&pfd, 1, -1);
+#endif
continue;
}
return 0;