#include <sys/uio.h>
#include <errno.h>
+#ifdef HAVE_POLL_H
#include <poll.h>
+#else
+# ifdef HAVE_SYS_POLL_H
+# include <sys/poll.h>
+# endif
+#endif
#include <string.h>
#include <unistd.h>
res = (f) (fd, s + pos, n - pos);
switch (res) {
case -1:
-#ifdef EWOULDBLOCK
- if (errno == EINTR || errno == EWOULDBLOCK)
-#else
if (errno == EINTR)
-#endif
continue;
- if (errno == EAGAIN) {
+ if (errno == EAGAIN || errno == EWOULDBLOCK) {
(void)poll(&pfd, 1, -1);
continue;
}
/* 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) {
case -1:
-#ifdef EWOULDBLOCK
- if (errno == EINTR || errno == EWOULDBLOCK)
-#else
if (errno == EINTR)
-#endif
continue;
- if (errno == EAGAIN) {
+ if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#ifndef BROKEN_READV_COMPARISON
(void)poll(&pfd, 1, -1);
+#endif
continue;
}
return 0;