From a15854bd92db69fcd0b4444fe1b8fe3610a7acf6 Mon Sep 17 00:00:00 2001
From: Martin Lucina <martin@lucina.net>
Date: Mon, 23 Jan 2012 08:53:19 +0100
Subject: Imported Upstream version 2.0.7.dfsg

---
 src/xreq.cpp | 118 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 src/xreq.cpp

(limited to 'src/xreq.cpp')

diff --git a/src/xreq.cpp b/src/xreq.cpp
new file mode 100644
index 0000000..ab90f68
--- /dev/null
+++ b/src/xreq.cpp
@@ -0,0 +1,118 @@
+/*
+    Copyright (c) 2007-2010 iMatix Corporation
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "../include/zmq.h"
+
+#include "xreq.hpp"
+#include "err.hpp"
+
+zmq::xreq_t::xreq_t (class app_thread_t *parent_) :
+    socket_base_t (parent_),
+    dropping (false)
+{
+    options.requires_in = true;
+    options.requires_out = true;
+}
+
+zmq::xreq_t::~xreq_t ()
+{
+}
+
+void zmq::xreq_t::xattach_pipes (class reader_t *inpipe_,
+    class writer_t *outpipe_, const blob_t &peer_identity_)
+{
+    zmq_assert (inpipe_ && outpipe_);
+    fq.attach (inpipe_);
+    lb.attach (outpipe_);
+}
+
+void zmq::xreq_t::xdetach_inpipe (class reader_t *pipe_)
+{
+    zmq_assert (pipe_);
+    fq.detach (pipe_);
+}
+
+void zmq::xreq_t::xdetach_outpipe (class writer_t *pipe_)
+{
+    zmq_assert (pipe_);
+    lb.detach (pipe_);
+}
+
+void zmq::xreq_t::xkill (class reader_t *pipe_)
+{
+    fq.kill (pipe_);
+}
+
+void zmq::xreq_t::xrevive (class reader_t *pipe_)
+{
+    fq.revive (pipe_);
+}
+
+void zmq::xreq_t::xrevive (class writer_t *pipe_)
+{
+    lb.revive (pipe_);
+}
+
+int zmq::xreq_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    errno = EINVAL;
+    return -1;
+}
+
+int zmq::xreq_t::xsend (zmq_msg_t *msg_, int flags_)
+{
+    while (true) {
+
+        //  If we are ignoring the current message, just drop it and return.
+        if (dropping) {
+            if (!(msg_->flags & ZMQ_MSG_MORE))
+                dropping = false;
+            int rc = zmq_msg_close (msg_);
+            zmq_assert (rc == 0);
+            rc = zmq_msg_init (msg_);
+            zmq_assert (rc == 0);
+            return 0;
+        }
+
+        int rc = lb.send (msg_, flags_);
+        if (rc != 0 && errno == EAGAIN)
+            dropping = true;
+        else
+            return rc;
+    }
+}
+
+int zmq::xreq_t::xrecv (zmq_msg_t *msg_, int flags_)
+{
+    return fq.recv (msg_, flags_);
+}
+
+bool zmq::xreq_t::xhas_in ()
+{
+    return fq.has_in ();
+}
+
+bool zmq::xreq_t::xhas_out ()
+{
+    //  Socket is always ready for writing. When the queue is full, message
+    //  will be silently dropped.
+    return true;
+}
+
-- 
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