XPUB and XSUB socket types added.

These are just placeholders. At the moment XPUB behaves th same
as PUB and XSUB as SUB.

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

1 files changed, 1 insertions, 133 deletions

diff --git a/src/sub.cpp b/src/sub.cpp
index 096fbc7..f763558 100644
--- a/src/sub.cpp
+++ b/src/sub.cpp
@@ -17,145 +17,13 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include <string.h>
-
-#include "../include/zmq.h"
-
 #include "sub.hpp"
-#include "err.hpp"
 
 zmq::sub_t::sub_t (class ctx_t *parent_, uint32_t tid_) :
-    socket_base_t (parent_, tid_),
-    fq (this),
-    has_message (false),
-    more (false)
+    xsub_t (parent_, tid_)
 {
-    options.type = ZMQ_SUB;
-    options.requires_in = true;
-    options.requires_out = false;
-    zmq_msg_init (&message);
 }
 
 zmq::sub_t::~sub_t ()
 {
-    zmq_msg_close (&message);
-}
-
-void zmq::sub_t::xattach_pipes (class reader_t *inpipe_,
-    class writer_t *outpipe_, const blob_t &peer_identity_)
-{
-    zmq_assert (inpipe_ && !outpipe_);
-    fq.attach (inpipe_);
-}
-
-void zmq::sub_t::process_term (int linger_)
-{
-    fq.terminate ();
-    socket_base_t::process_term (linger_);
-}
-
-int zmq::sub_t::xsetsockopt (int option_, const void *optval_,
-    size_t optvallen_)
-{
-    if (option_ == ZMQ_SUBSCRIBE) {
-        subscriptions.add ((unsigned char*) optval_, optvallen_);
-        return 0;
-    }
-    
-    if (option_ == ZMQ_UNSUBSCRIBE) {
-        if (!subscriptions.rm ((unsigned char*) optval_, optvallen_)) {
-            errno = EINVAL;
-            return -1;
-        }
-        return 0;
-    }
-
-    errno = EINVAL;
-    return -1;
-}
-
-int zmq::sub_t::xrecv (zmq_msg_t *msg_, int flags_)
-{
-    //  If there's already a message prepared by a previous call to zmq_poll,
-    //  return it straight ahead.
-    if (has_message) {
-        zmq_msg_move (msg_, &message);
-        has_message = false;
-        more = msg_->flags & ZMQ_MSG_MORE;
-        return 0;
-    }
-
-    //  TODO: This can result in infinite loop in the case of continuous
-    //  stream of non-matching messages which breaks the non-blocking recv
-    //  semantics.
-    while (true) {
-
-        //  Get a message using fair queueing algorithm.
-        int rc = fq.recv (msg_, flags_);
-
-        //  If there's no message available, return immediately.
-        //  The same when error occurs.
-        if (rc != 0)
-            return -1;
-
-        //  Check whether the message matches at least one subscription.
-        //  Non-initial parts of the message are passed 
-        if (more || match (msg_)) {
-            more = msg_->flags & ZMQ_MSG_MORE;
-            return 0;
-        }
-
-        //  Message doesn't match. Pop any remaining parts of the message
-        //  from the pipe.
-        while (msg_->flags & ZMQ_MSG_MORE) {
-            rc = fq.recv (msg_, ZMQ_NOBLOCK);
-            zmq_assert (rc == 0);
-        }
-    }
-}
-
-bool zmq::sub_t::xhas_in ()
-{
-    //  There are subsequent parts of the partly-read message available.
-    if (more)
-        return true;
-
-    //  If there's already a message prepared by a previous call to zmq_poll,
-    //  return straight ahead.
-    if (has_message)
-        return true;
-
-    //  TODO: This can result in infinite loop in the case of continuous
-    //  stream of non-matching messages.
-    while (true) {
-
-        //  Get a message using fair queueing algorithm.
-        int rc = fq.recv (&message, ZMQ_NOBLOCK);
-
-        //  If there's no message available, return immediately.
-        //  The same when error occurs.
-        if (rc != 0) {
-            zmq_assert (errno == EAGAIN);
-            return false;
-        }
-
-        //  Check whether the message matches at least one subscription.
-        if (match (&message)) {
-            has_message = true;
-            return true;
-        }
-
-        //  Message doesn't match. Pop any remaining parts of the message
-        //  from the pipe.
-        while (message.flags & ZMQ_MSG_MORE) {
-            rc = fq.recv (&message, ZMQ_NOBLOCK);
-            zmq_assert (rc == 0);
-        }
-    }
-}
-
-bool zmq::sub_t::match (zmq_msg_t *msg_)
-{
-    return subscriptions.check ((unsigned char*) zmq_msg_data (msg_),
-        zmq_msg_size (msg_));
 }