stress test for shutdown process added

tests/Makefile.am

@@ -2,11 +2,12 @@ INCLUDES = -I$(top_builddir)/include
 LDADD = $(top_builddir)/src/libzmq.la
 
 noinst_PROGRAMS = test_pair_inproc \
-	          test_pair_ipc \
+                  test_pair_ipc \
                   test_pair_tcp \
                   test_reqrep_inproc \
                   test_reqrep_ipc \
-                  test_reqrep_tcp
+                  test_reqrep_tcp \
+                  test_shutdown_stress
 
 test_pair_inproc_SOURCES = test_pair_inproc.cpp testutil.hpp
 test_pair_ipc_SOURCES = test_pair_ipc.cpp testutil.hpp
@@ -16,4 +17,6 @@ test_reqrep_inproc_SOURCES = test_reqrep_inproc.cpp testutil.hpp
 test_reqrep_ipc_SOURCES = test_reqrep_ipc.cpp testutil.hpp
 test_reqrep_tcp_SOURCES = test_reqrep_tcp.cpp testutil.hpp
 
+test_shutdown_stress_SOURCES = test_shutdown_stress.cpp
+
 TESTS = $(noinst_PROGRAMS)

tests/test_shutdown_stress.cpp

@@ -0,0 +1,83 @@
+/*
+    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 <assert.h>
+#include <pthread.h>
+#include <stddef.h>
+
+#define THREAD_COUNT 100
+
+void *worker (void *s)
+{
+    int rc;
+
+    rc = zmq_connect (s, "tcp://127.0.0.1:5555");
+    assert (rc == 0);
+
+    //  Start closing the socket while the connecting process is underway.
+    rc = zmq_close (s);
+    assert (rc == 0);
+
+    return NULL;
+}
+
+int main (int argc, char *argv [])
+{
+    void *ctx;
+    void *s1;
+    void *s2;
+    int i;
+    int j;
+    int rc;
+    pthread_t threads [THREAD_COUNT];
+
+    for (j = 0; j != 10; j++) {
+
+        //  Check the shutdown with many parallel I/O threads.
+        ctx = zmq_init (7);
+        assert (ctx);
+
+        s1 = zmq_socket (ctx, ZMQ_REP);
+        assert (s1);
+
+        rc = zmq_bind (s1, "tcp://127.0.0.1:5555");
+        assert (rc == 0);
+
+        for (i = 0; i != THREAD_COUNT; i++) {
+            s2 = zmq_socket (ctx, ZMQ_SUB);
+            assert (s2);
+            rc = pthread_create (&threads [i], NULL, worker, s2);
+            assert (rc == 0);
+        }
+
+        for (i = 0; i != THREAD_COUNT; i++) {
+            rc = pthread_join (threads [i], NULL);
+            assert (rc == 0);
+        }
+
+        rc = zmq_close (s1);
+        assert (rc == 0);
+
+        rc = zmq_term (ctx);
+        assert (rc == 0);
+    }
+
+    return 0;
+}