<!--$Id: rep_priority.so,v 1.3 2008/01/30 20:14:30 sue Exp $--> <!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbEnv::rep_set_priority</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> <b>DbEnv::rep_set_priority</b> </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> <b><pre> #include <db_cxx.h> <p> int DbEnv::rep_set_priority(u_int32_t priority); int DbEnv::rep_get_priority(u_int32_t *priorityp); </pre></b> <hr size=1 noshade> <b>Description: DbEnv::rep_set_priority</b> <p>The DbEnv::rep_set_priority method specifies the database environment's priority in replication group elections. A special value of 0 indicates that this environment cannot be a replication group master.</p> <p>The database environment's replication subsystem may also be configured using the environment's <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file. The syntax of the entry in that file is a single line with the string "rep_set_priority", one or more whitespace characters, and the priority of this site. For example, "rep_set_priority 1" sets the priority of this site to 1. Because the <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file is read when the database environment is opened, it will silently overrule configuration done before that time.</p> <p>The DbEnv::rep_set_priority 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_priority method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_set_priority 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> <b>Parameters</b> <br> <b>priority</b><ul compact><li>The priority of this database environment in the replication group. The priority must be a non-zero integer, or 0 if this environment cannot be a replication group master. (See <a href="../ref/rep/pri.html">Replication environment priorities</a> for more information).</ul> <br> <hr size=1 noshade> <b>Description: DbEnv::rep_get_priority</b> <p>The DbEnv::rep_get_priority method returns the database environment priority.</p> <p>The DbEnv::rep_get_priority method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_get_priority 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> <b>Parameters</b> <br> <b>priorityp</b><ul compact><li>The DbEnv::rep_get_priority method returns the database environment priority in <b>priorityp</b>.</ul> <br> <hr size=1 noshade> <br><b>Class</b> <a href="../api_cxx/env_class.html">DbEnv</a> <br><b>See Also</b> <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) 1996,2008 Oracle. All rights reserved.</font> </body> </html>