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Files
mariadb/ndb/include/ndbapi/ndb_cluster_connection.hpp
unknown 8dcfad68e2 changed name of g_eventLogger so it can be used in TransporterRegistry and is the same as in the kernel
ndb/include/ndbapi/ndb_cluster_connection.hpp:
  changed return type of no_ndb_nodes
ndb/include/transporter/TransporterRegistry.hpp:
  added connect_server method to TransporterRegistry
ndb/include/util/ndb_opts.h:
  set shared memory usage as _no_ default in 4.1
ndb/src/common/transporter/Makefile.am:
  added -I flags for EventLogger.hpp
ndb/src/common/transporter/SCI_Transporter.cpp:
  setting transporter type
ndb/src/common/transporter/SHM_Transporter.cpp:
  setting transporter type
ndb/src/common/transporter/TCP_Transporter.cpp:
  setting transporter type
ndb/src/common/transporter/Transporter.cpp:
  added event logger
  added type handling in transporter
  added verification of transporter type compatability
ndb/src/common/transporter/Transporter.hpp:
  setting transporter type
ndb/src/common/transporter/TransporterRegistry.cpp:
  moved server-client transporter negotiation to own method connect_server()
  added verification of transporter compatability
ndb/src/kernel/main.cpp:
  changed which events are logged
ndb/src/ndbapi/ndb_cluster_connection.cpp:
  added g_eventLogger
sql/mysqld.cc:
  set shared memory usage as _no_ default in 4.1
2004-12-22 16:29:01 +01:00

97 lines
3.1 KiB
C++

/* Copyright (C) 2003 MySQL AB
This program 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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef CLUSTER_CONNECTION_HPP
#define CLUSTER_CONNECTION_HPP
/**
* @class Ndb_cluster_connection
* @brief Represents a connection to a cluster of storage nodes
*
* Always start your application program by creating a
* Ndb_cluster_connection object. Your application should contain
* only one Ndb_cluster_connection. Your application connects to
* a cluster management server when method connect() is called.
* With the method wait_until_ready() it is possible to wait
* for the connection to one or several storage nodes.
*/
class Ndb_cluster_connection {
public:
/**
* Create a connection to a cluster of storage nodes
*
* @param specify the connectstring for where to find the
* management server
*/
Ndb_cluster_connection(const char * connect_string = 0);
~Ndb_cluster_connection();
/**
* Connect to a cluster management server
*
* @param no_retries specifies the number of retries to perform
* if the connect fails, negative number results in infinite
* number of retries
* @param retry_delay_in_seconds specifies how often retries should
* be performed
* @param verbose specifies if the method should print progess
*
* @return 0 if success,
* 1 if retriable error,
* -1 if non-retriable error
*/
int connect(int no_retries=0, int retry_delay_in_seconds=1, int verbose=0);
#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
int start_connect_thread(int (*connect_callback)(void)= 0);
#endif
/**
* Wait until one or several storage nodes are connected
*
* @param time_out_for_first_alive number of seconds to wait until
* first alive node is detected
* @param timeout_after_first_alive number of seconds to wait after
* first alive node is detected
*
* @return 0 all nodes alive,
* > 0 at least one node alive,
* < 0 error
*/
int wait_until_ready(int timeout_for_first_alive,
int timeout_after_first_alive);
#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
const char *get_connectstring(char *buf, int buf_sz) const;
int get_connected_port() const;
const char *get_connected_host() const;
void set_optimized_node_selection(int val);
unsigned no_db_nodes();
#endif
private:
friend class Ndb;
friend class NdbImpl;
friend class Ndb_cluster_connection_impl;
class Ndb_cluster_connection_impl & m_impl;
Ndb_cluster_connection(Ndb_cluster_connection_impl&);
};
#endif