Moved common sharding functions to a separate file.

server/modules/routing/schemarouter/svcconn.c

@@ -0,0 +1,78 @@
+/*
+ * This file is distributed as part of the MariaDB Corporation MaxScale.  It is free
+ * software: you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation,
+ * version 2.
+ *
+ * This program 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 General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright MariaDB Corporation Ab 2013-2014
+ */
+
+#include <shardrouter.h>
+
+void
+subsvc_set_state(SUBSERVICE* svc,subsvc_state_t state)
+{
+    if(state & SUBSVC_WAITING_RESULT)
+    {
+
+        /** Increase waiter count */
+       atomic_add(&svc->n_res_waiting, 1);
+    }
+    
+    svc->state |= state;
+}
+
+void
+subsvc_clear_state(SUBSERVICE* svc,subsvc_state_t state)
+{
+    
+
+    if(state & SUBSVC_WAITING_RESULT)
+    {
+        /** Decrease waiter count */
+        atomic_add(&svc->n_res_waiting, -1);
+    }
+    
+    svc->state &= ~state;
+}
+
+bool 
+get_shard_subsvc(SUBSERVICE** subsvc,ROUTER_CLIENT_SES* session,char* target)
+{
+    int i;
+    
+    if(subsvc == NULL || session == NULL || target == NULL)
+	return false;
+
+    for(i = 0;i<session->n_subservice;i++)
+    {
+        if(strcmp(session->subservice[i]->service->name,target) == 0)
+        {
+            
+            if (SUBSVC_IS_OK(session->subservice[i]))
+            {
+                if(subsvc_is_valid(session->subservice[i])){
+                    *subsvc = session->subservice[i];
+                    return true;
+                }
+                
+                /**
+                 * The service has failed 
+                 */
+                
+                subsvc_set_state(session->subservice[i],SUBSVC_FAILED);
+            }
+        } 
+    }
+    
+    return false;
+}