estream: Add gpgrt_set_nonblock and gpgrt_poll.

* configure.ac (AC_CHECK_HEADERS): Add sys/select.h and sys/time.h.
* src/estream.c: Include both header if available.
(COOKIE_IOCTL_NONBLOCK): New.
(struct estream_cookie_fd): Add field nonblock.
(func_fd_create): Set nonblock from MODEFLAGS.
(es_func_fd_ioctl): New.
(parse_mode): Add modeflag "nonblock".
(es_fill): Map EWOULDBLOCK to EAGAIN.  Do not set error indicator for
EAGAIN.
(es_flush, es_seek, es_write_nbf): Map EWOULDBLOCK to EAGAIN.
(do_fdopen): Call COOKIE_IOCTL_NONBLOCK.
(_gpgrt_set_nonblock): New.
(_gpgrt_get_nonblock): New.
(_gpgrt_poll): New.

* src/gpg-error.h.in (struct _gpgrt_poll_s): New.
(gpgrt_poll_t, es_poll_t): New.
(es_set_nonblock, es_get_nonblock, es_poll): New.

* src/gpg-error.vers, src/gpg-error.def.in: Add gpgrt_set_nonblock,
gpgrt_get_nonblock, and gpgrt_poll.
* src/visibility.c (gpgrt_set_nonblock, gpgrt_get_nonblock): New.
(gpgrt_poll): New.

* tests/t-common.h (DIM): New.
* tests/t-poll.c: New.
* tests/Makefile.am (TESTS): Add t-poll.
(t_poll_LDADD): New.
--

The poll interface uses select(2) internally because that is more
portable than poll(2).

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/visibility.c b/src/visibility.c
index 9213ce9..4750685 100644
--- a/src/visibility.c
+++ b/src/visibility.c
@@ -592,6 +592,24 @@ gpgrt_set_binary (estream_t stream)
   _gpgrt_set_binary (stream);
 }
 
+int
+gpgrt_set_nonblock (estream_t stream, int onoff)
+{
+  return _gpgrt_set_nonblock (stream, onoff);
+}
+
+int
+gpgrt_get_nonblock (estream_t stream)
+{
+  return _gpgrt_get_nonblock (stream);
+}
+
+int
+gpgrt_poll (gpgrt_poll_t *fds, unsigned int nfds, int timeout)
+{
+  return _gpgrt_poll (fds, nfds, timeout);
+}
+
 estream_t
 gpgrt_tmpfile (void)
 {