<!--$Id: rep_config.so,v 1.4 2007/02/13 19:32:52 bostic Exp $--> <!--Copyright (c) 1997,2007 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbEnv::rep_set_config</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <table width="100%"><tr valign=top> <td> <h3>DbEnv::rep_set_config</h3> </td> <td align=right> <a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a> <a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db_cxx.h> <p> int DbEnv::rep_set_config(u_int32_t which, int onoff); <p> int DbEnv::rep_get_config(u_int32_t which, int *onoffp); </pre></h3> <hr size=1 noshade> <h3>Description: DbEnv::rep_set_config</h3> <p>The DbEnv::rep_set_config method method configures the Berkeley DB replication subsystem.</p> <p>The database environment's replication subsystem may also be configured using the environment's <b>DB_CONFIG</b> file. The syntax of the entry in that file is a single line with the string "rep_set_config", one or more whitespace characters, and the method <b>which</b> parameter as a string; for example, "rep_set_config REP_CONF_NOWAIT". Because the <b>DB_CONFIG</b> file is read when the database environment is opened, it will silently overrule configuration done before that time.</p> <p>The DbEnv::rep_set_config method configures a database environment, not only operations performed using the specified <a href="../api_cxx/env_class.html">DbEnv</a> handle.</p> <p>The DbEnv::rep_set_config method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_set_config method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success. </p> <h3>Parameters</h3> <dl compact> <dt><b>onoff</b><dd>If the <b>onoff</b> parameter is zero, the configuration flag is turned off. Otherwise, it is turned on. <dt><b>which</b><dd>The <b>which</b> parameter must be set to one of the following values: <dl compact> <dt><a name="DB_REP_CONF_BULK">DB_REP_CONF_BULK</a><dd>The replication master sends groups of records to the clients in a single network transfer (defaults to off). <dt><a name="DB_REP_CONF_DELAYCLIENT">DB_REP_CONF_DELAYCLIENT</a><dd>The client should delay synchronizing to a newly declared master (defaults to off). Clients configured in this way will remain unsynchronized until the application calls the <a href="../api_cxx/rep_sync.html">DbEnv::rep_sync</a> method. <dt><a name="DB_REP_CONF_NOAUTOINIT">DB_REP_CONF_NOAUTOINIT</a><dd>The replication master will not automatically re-initialize outdated clients (defaults to off). <dt><a name="DB_REP_CONF_NOWAIT">DB_REP_CONF_NOWAIT</a><dd>Berkeley DB method calls that would normally block while clients are in recovery will return errors immediately (defaults to off). </dl> </dl> <h3>Errors</h3> <p>The DbEnv::rep_set_config method may fail and throw <a href="../api_cxx/except_class.html">DbException</a>, encapsulating one of the following non-zero errors, or return one of the following non-zero errors:</p> <dl compact> <dt>EINVAL<dd>An invalid flag value or parameter was specified. </dl> <hr size=1 noshade> <h3>Description: DbEnv::rep_get_config</h3> <p>The DbEnv::rep_get_config method returns whether the specified <b>which</b> parameter is currently set or not.</p> <p>The DbEnv::rep_get_config method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_get_config method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success. </p> <h3>Parameters</h3> <dl compact> <dt><b>which</b><dd>The <b>which</b> parameter is the message value for which configuration is being checked. <dt><b>onoffp</b><dd>The <b>onoffp</b> parameter references memory into which the configuration of the specified <b>which</b> parameter is copied. If the returned <b>onoff</b> value is zero, the parameter is off; otherwise on. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../api_cxx/env_class.html">DbEnv</a> <h3>See Also</h3> <a href="../api_cxx/rep_list.html">Replication and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2007 Oracle. All rights reserved.</font> </body> </html>