[PATCH] WL#3704 mgmapi timeouts: update NDBAPI usage of mgmapi for timeouts

Default timout of 30secs for ConfigRetriever

Default timout of 5sec for use by Transporter (ports etc).

And Ndb_cluster_connection::set_timeout() api for setting timeout from
NDBAPI applications. Should be called before connect. e.g.

c.set_timeout(4200);
c.connect();

Index: ndb-work/storage/ndb/include/mgmcommon/ConfigRetriever.hpp
===================================================================

storage/ndb/include/mgmcommon/ConfigRetriever.hpp

@@ -28,7 +28,8 @@ class ConfigRetriever {
 public:
   ConfigRetriever(const char * _connect_string,
 		  Uint32 version, Uint32 nodeType,
-		  const char * _bind_address = 0);
+		  const char * _bind_address = 0,
+                  int timeout_ms = 30000);
   ~ConfigRetriever();
 
   int do_connect(int no_retries, int retry_delay_in_seconds, int verbose);

storage/ndb/include/ndbapi/ndb_cluster_connection.hpp

@@ -61,6 +61,24 @@ public:
    */
   void set_name(const char *name);
 
+  /**
+   * Set timeout
+   *
+   * Used as a timeout when talking to the management server,
+   * helps limit the amount of time that we may block when connecting
+   *
+   * Basically just calls ndb_mgm_set_timeout(h,ms).
+   *
+   * The default is 30 seconds.
+   *
+   * @param timeout_ms millisecond timeout. As with ndb_mgm_set_timeout,
+   *                   only increments of 1000 are really supported,
+   *                   with not to much gaurentees about calls completing
+   *                   in any hard amount of time.
+   * @return 0 on success
+   */
+  int set_timeout(int timeout_ms);
+
   /**
    * Connect to a cluster management server
    *

storage/ndb/src/common/mgmcommon/ConfigRetriever.cpp

@@ -45,7 +45,8 @@
 
 ConfigRetriever::ConfigRetriever(const char * _connect_string,
 				 Uint32 version, Uint32 node_type,
-				 const char * _bindaddress)
+				 const char * _bindaddress,
+                                 int timeout_ms)
 {
   DBUG_ENTER("ConfigRetriever::ConfigRetriever");
 
@@ -61,6 +62,8 @@ ConfigRetriever::ConfigRetriever(const char * _connect_string,
     DBUG_VOID_RETURN;
   }
 
+  ndb_mgm_set_timeout(m_handle, timeout_ms);
+
   if (ndb_mgm_set_connectstring(m_handle, _connect_string))
   {
     BaseString tmp(ndb_mgm_get_latest_error_msg(m_handle));

storage/ndb/src/common/transporter/TransporterRegistry.cpp

@@ -119,6 +119,7 @@ void TransporterRegistry::set_mgm_handle(NdbMgmHandle h)
   if (m_mgm_handle)
     ndb_mgm_destroy_handle(&m_mgm_handle);
   m_mgm_handle= h;
+  ndb_mgm_set_timeout(m_mgm_handle, 5000);
 #ifndef DBUG_OFF
   if (h)
   {

storage/ndb/src/ndbapi/ndb_cluster_connection.cpp

@@ -666,5 +666,12 @@ Ndb_cluster_connection::get_active_ndb_objects() const
 {
   return m_impl.m_transporter_facade->get_active_ndb_objects();
 }
+
+int Ndb_cluster_connection::set_timeout(int timeout_ms)
+{
+  return ndb_mgm_set_timeout(m_impl.m_config_retriever->get_mgmHandle(),
+                             timeout_ms);
+}
+
 template class Vector<Ndb_cluster_connection_impl::Node>;