fix bugs in pool ptrs

examples/multiplex/margo-example-mp-server.c

@@ -62,6 +62,7 @@ int main(int argc, char **argv)
     hg_size_t addr_self_string_sz = 128;
     ABT_xstream svc1_xstream2;
     ABT_pool svc1_pool2;
+    ABT_pool *handler_pool;
 
     if(argc != 2)
     {
@@ -144,7 +145,8 @@ int main(int argc, char **argv)
     /* register svc1, with mplex_id 1, to execute on the default handler pool
      * used by Margo
      */
-    ret = svc1_register(mid, margo_get_handler_pool(mid), 1);
+    handler_pool = margo_get_handler_pool(mid);
+    ret = svc1_register(mid, *handler_pool, 1);
     assert(ret == 0);
 
     /* create a dedicated and pool for another instance of svc1 */
@@ -160,7 +162,8 @@ int main(int argc, char **argv)
     /* register svc2, with mplex_id 3, to execute on the default handler pool
      * used by Margo
      */
-    ret = svc2_register(mid, margo_get_handler_pool(mid), 3);
+    handler_pool = margo_get_handler_pool(mid);
+    ret = svc2_register(mid, *handler_pool, 3);
     assert(ret == 0);
 
 
@@ -174,9 +177,9 @@ int main(int argc, char **argv)
      */
     margo_wait_for_finalize(mid);
 
-    svc1_deregister(mid, margo_get_handler_pool(mid), 1);
-    svc1_deregister(mid, margo_get_handler_pool(mid), 2);
-    svc2_deregister(mid, margo_get_handler_pool(mid), 3);
+    svc1_deregister(mid, *handler_pool, 1);
+    svc1_deregister(mid, svc1_pool2, 2);
+    svc2_deregister(mid, *handler_pool, 3);
 
     ABT_xstream_join(svc1_xstream2);
     ABT_xstream_free(&svc1_xstream2);