Add a test for thread safe sockets.

tests/Makefile.am

@@ -17,6 +17,7 @@ if !ON_MINGW
 noinst_PROGRAMS += test_shutdown_stress \
                    test_pair_ipc \
                    test_reqrep_ipc \
+                   test_ts_context \
                    test_timeo
 endif
 
@@ -35,6 +36,7 @@ test_shutdown_stress_SOURCES = test_shutdown_stress.cpp
 test_pair_ipc_SOURCES = test_pair_ipc.cpp testutil.hpp
 test_reqrep_ipc_SOURCES = test_reqrep_ipc.cpp testutil.hpp
 test_timeo_SOURCES = test_timeo.cpp
+test_ts_context_SOURCES = test_ts_context.cpp
 endif
 
 TESTS = $(noinst_PROGRAMS)

tests/test_ts_context.cpp

+/*
+    Copyright (c) 2010-2011 250bpm s.r.o.
+    Copyright (c) 2011 iMatix Corporation
+    Copyright (c) 2010-2011 Other contributors as noted in the AUTHORS file
+
+    This file is part of 0MQ.
+
+    0MQ 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.
+
+    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
+    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 <assert.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "../include/zmq.h"
+#include "../include/zmq_utils.h"
+
+#define THREAD_COUNT 30
+#define NMESSAGES 20
+
+struct thread_data_t 
+{
+  int thread_index;
+  void *socket;
+  pthread_t pthr;
+};
+
+extern "C" 
+{
+  static void *source(void *client_data)
+  {
+      // Wait a bit util all threads created and  subscriber ready.
+      zmq_sleep(2); // ms
+
+      // Our thread number and socket.
+      thread_data_t *td = (thread_data_t *) client_data;
+
+      // Buffer for messages.
+      char buffer[20];
+      memset (buffer, 0, 20);
+
+      // Send messages.
+      for (int i = 0; i < NMESSAGES; ++i)
+      {
+        sprintf(buffer,"Th %02d count %02d", td->thread_index, i);   
+        int rc = zmq_send(td->socket,buffer,20,0);
+        assert (rc == 20);
+        zmq_sleep(1); // Don't overload the socket.
+      }
+ 
+      return 0;
+  }
+}
+
+
+int main (int argc, char *argv [])
+{
+    fprintf (stderr, "test_ts_context running...\n");
+
+    // Make a thread safe context.
+    void *ctx = zmq_init_thread_safe (1);
+    assert (ctx);
+
+    //  Create a publisher.
+    void *pub = zmq_socket (ctx, ZMQ_PUB);
+    assert (pub);
+    int rc = zmq_bind (pub, "tcp://127.0.0.1:5560");
+    assert (rc == 0);
+
+    //  Create a subscriber.
+    void *sub = zmq_socket (ctx, ZMQ_SUB);
+    assert (sub);
+    rc = zmq_connect (sub, "tcp://127.0.0.1:5560");
+    assert (rc == 0);
+
+    //  Subscribe for all messages.
+    rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "", 0);
+    assert (rc == 0);
+
+    thread_data_t threads [THREAD_COUNT];
+    
+    // Create workers.
+    for(int i = 0; i < THREAD_COUNT; ++i)
+    {
+        threads [i].thread_index = i;
+        threads [i].socket = pub;
+        rc = pthread_create(&threads[i].pthr, NULL, source, threads+i);
+        assert (rc == 0);
+    }
+
+    // Gather all the Messages.
+    char buff [20];
+    for(int i= 1; i<=THREAD_COUNT * NMESSAGES; ++i)
+    {
+      rc = zmq_recv (sub, buff, 20, 0);
+      //fprintf (stderr, "%d/%d: %s\n",i,THREAD_COUNT * NMESSAGES, buff); // debug it
+      assert (rc >= 0);
+    }
+
+    // Wait for worker death.
+    for(int i = 0; i < THREAD_COUNT; ++i)
+    {
+        rc = pthread_join(threads[i].pthr, NULL);
+        assert (rc == 0);
+    }
+
+
+    //  Clean up.
+    rc = zmq_close (pub);
+    assert (rc == 0);
+    rc = zmq_close (sub);
+    assert (rc == 0);
+    rc = zmq_term (ctx);
+    assert (rc == 0);
+
+    return 0 ;
+}