1 files changed, 134 insertions, 0 deletions
diff --git a/tests/backlog.cpp b/tests/backlog.cpp
new file mode 100644
index 0000000..7ae9ed8
--- /dev/null
+++ b/tests/backlog.cpp
@@ -0,0 +1,134 @@
+/*
+    Copyright (c) 2012 250bpm s.r.o.
+    Copyright (c) 2012 Other contributors as noted in the AUTHORS file
+
+    This file is part of Crossroads I/O project.
+
+    Crossroads I/O is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    Crossroads 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
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "testutil.hpp"
+
+#define BACKLOG 10
+#define PARALLEL_CONNECTS 50
+
+extern "C"
+{
+
+#if !defined XS_HAVE_WINDOWS && !defined XS_HAVE_OPENVMS
+    static void ipc_worker (void *ctx_)
+    {
+        int rc;
+        void *push;
+
+        push = xs_socket (ctx_, XS_PUSH);
+        assert (push);
+        rc = xs_connect (push, "ipc:///tmp/test-backlog");
+        assert (rc >= 0);
+        rc = xs_send (push, NULL, 0, 0);
+        assert (rc == 0);
+        rc = xs_close (push);
+        assert (rc == 0);
+    }
+#endif
+
+    static void tcp_worker (void *ctx_)
+    {
+        int rc;
+        void *push;
+
+        push = xs_socket (ctx_, XS_PUSH);
+        assert (push);
+        rc = xs_connect (push, "tcp://127.0.0.1:5560");
+        assert (rc >= 0);
+        rc = xs_send (push, NULL, 0, 0);
+        assert (rc == 0);
+        rc = xs_close (push);
+        assert (rc == 0);
+    }
+}
+
+int XS_TEST_MAIN ()
+{
+    fprintf (stderr, "backlog test running...\n");
+
+    int rc;
+    void *ctx;
+    void *pull;
+    int i;
+    int backlog;
+    void *threads [PARALLEL_CONNECTS];
+
+    //  Test the exhaustion on IPC backlog.
+#if !defined XS_HAVE_WINDOWS && !defined XS_HAVE_OPENVMS
+    ctx = xs_init ();
+    assert (ctx);
+
+    pull = xs_socket (ctx, XS_PULL);
+    assert (pull);
+    backlog = BACKLOG;
+    rc = xs_setsockopt (pull, XS_BACKLOG, &backlog, sizeof (backlog));
+    assert (rc == 0);
+    rc = xs_bind (pull, "ipc:///tmp/test-backlog");
+    assert (rc >= 0);
+
+    
+    for (i = 0; i < PARALLEL_CONNECTS; i++)
+        threads [i] = thread_create (ipc_worker, ctx);
+
+    for (i = 0; i < PARALLEL_CONNECTS; i++) {
+        rc = xs_recv (pull, NULL, 0, 0);
+        assert (rc == 0);
+    }
+    
+    rc = xs_close (pull);
+    assert (rc == 0);
+    rc = xs_term (ctx);
+    assert (rc == 0);
+
+    for (i = 0; i < PARALLEL_CONNECTS; i++)
+        thread_join (threads [i]);
+#endif
+
+    //  Test the exhaustion on TCP backlog.
+
+    ctx = xs_init ();
+    assert (ctx);
+
+    pull = xs_socket (ctx, XS_PULL);
+    assert (pull);
+    backlog = BACKLOG;
+    rc = xs_setsockopt (pull, XS_BACKLOG, &backlog, sizeof (backlog));
+    assert (rc == 0);
+    rc = xs_bind (pull, "tcp://127.0.0.1:5560");
+    assert (rc >= 0);
+
+    for (i = 0; i < PARALLEL_CONNECTS; i++)
+        threads [i] = thread_create (tcp_worker, ctx);
+
+    for (i = 0; i < PARALLEL_CONNECTS; i++) {
+        rc = xs_recv (pull, NULL, 0, 0);
+        assert (rc == 0);
+    }
+    
+    rc = xs_close (pull);
+    assert (rc == 0);
+    rc = xs_term (ctx);
+    assert (rc == 0);
+
+    for (i = 0; i < PARALLEL_CONNECTS; i++)
+        thread_join (threads [i]);
+
+    return 0;
+}