From 0b59866a84f733e5a53b0d2f32570581691747ef Mon Sep 17 00:00:00 2001
From: Martin Sustrik <sustrik@250bpm.com>
Date: Mon, 30 May 2011 10:07:34 +0200
Subject: Patches from sub-forward branch incorporated

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
---
 src/sub.cpp | 115 ++----------------------------------------------------------
 1 file changed, 2 insertions(+), 113 deletions(-)

(limited to 'src/sub.cpp')

diff --git a/src/sub.cpp b/src/sub.cpp
index 11c4532..c8ffd2e 100644
--- a/src/sub.cpp
+++ b/src/sub.cpp
@@ -22,43 +22,18 @@
 #include "msg.hpp"
 
 zmq::sub_t::sub_t (class ctx_t *parent_, uint32_t tid_) :
-    xsub_t (parent_, tid_),
-    has_message (false),
-    more (false)
+    xsub_t (parent_, tid_)
 {
     options.type = ZMQ_SUB;
-    int rc = message.init ();
-    errno_assert (rc == 0);
 }
 
 zmq::sub_t::~sub_t ()
 {
-    int rc = message.close ();
-    errno_assert (rc == 0);
 }
 
 int zmq::sub_t::xsetsockopt (int option_, const void *optval_,
     size_t optvallen_)
 {
-    //  Process a subscription.
-    if (option_ == ZMQ_SUBSCRIBE)
-        subscriptions.add ((unsigned char*) optval_, optvallen_);
-
-    //  Process an unsubscription. Return error if there is no corresponding
-    //  subscription.
-    else if (option_ == ZMQ_UNSUBSCRIBE) {
-        if (!subscriptions.rm ((unsigned char*) optval_, optvallen_)) {
-            errno = EINVAL;
-            return -1;
-        }
-    }
-
-    //  Unknow option.
-    else {
-        errno = EINVAL;
-        return -1;
-    }
-
     //  Create the subscription message.
     msg_t msg;
     int rc = msg.init_size (optvallen_ + 1);
@@ -82,7 +57,7 @@ int zmq::sub_t::xsetsockopt (int option_, const void *optval_,
     return rc;
 }
 
-int zmq::sub_t::xsend (msg_t *msg_, int options_)
+int zmq::sub_t::xsend (msg_t *msg_, int flags_)
 {
     //  Overload the XSUB's send.
     errno = ENOTSUP;
@@ -95,89 +70,3 @@ bool zmq::sub_t::xhas_out ()
     return false;
 }
 
-int zmq::sub_t::xrecv (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) {
-        int rc = msg_->move (message);
-        errno_assert (rc == 0);
-        has_message = false;
-        more = msg_->flags () & msg_t::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 = xsub_t::xrecv (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 () & msg_t::more;
-            return 0;
-        }
-
-        //  Message doesn't match. Pop any remaining parts of the message
-        //  from the pipe.
-        while (msg_->flags () & msg_t::more) {
-            rc = xsub_t::xrecv (msg_, ZMQ_DONTWAIT);
-            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 = xsub_t::xrecv (&message, ZMQ_DONTWAIT);
-
-        //  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 () & msg_t::more) {
-            rc = xsub_t::xrecv (&message, ZMQ_DONTWAIT);
-            zmq_assert (rc == 0);
-        }
-    }
-}
-
-bool zmq::sub_t::match (msg_t *msg_)
-{
-    return subscriptions.check ((unsigned char*) msg_->data (), msg_->size ());
-}
-
-- 
cgit v1.2.3