1<!--$Id: rep_priority.so,v 1.3 2008/01/30 20:14:30 sue Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB: DbEnv::rep_set_priority</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td> 13<b>DbEnv::rep_set_priority</b> 14</td> 15<td align=right> 16<a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a> 17<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db_cxx.h> 23<p> 24int 25DbEnv::rep_set_priority(u_int32_t priority); 26int 27DbEnv::rep_get_priority(u_int32_t *priorityp); 28</pre></b> 29<hr size=1 noshade> 30<b>Description: DbEnv::rep_set_priority</b> 31<p>The DbEnv::rep_set_priority method specifies the database environment's 32priority in replication group elections. A special value of 330 indicates that this environment cannot be a replication 34group master.</p> 35<p>The database environment's replication subsystem may also be configured using the 36environment's <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file. The syntax of the entry in that 37file is a single line with the string "rep_set_priority", one or more whitespace 38characters, and the priority of this site. 39For example, "rep_set_priority 1" sets the priority of this site to 1. 40Because the <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file is read when the database environment 41is opened, it will silently overrule configuration done before that 42time.</p> 43<p>The DbEnv::rep_set_priority method configures a database environment, not only operations 44performed using the specified <a href="../api_cxx/env_class.html">DbEnv</a> handle.</p> 45<p>The DbEnv::rep_set_priority method may be called at any time during the life of the 46application.</p> 47<p>The DbEnv::rep_set_priority method 48either returns a non-zero error value 49or throws an exception that encapsulates a non-zero error value on 50failure, and returns 0 on success. 51</p> 52<b>Parameters</b> <br> 53 <b>priority</b><ul compact><li>The priority of this database environment in the replication group. The 54priority must be a non-zero integer, or 0 if this environment cannot be 55a replication group master. (See <a href="../ref/rep/pri.html">Replication environment priorities</a> for more information).</ul> 56<br> 57<hr size=1 noshade> 58<b>Description: DbEnv::rep_get_priority</b> 59<p>The DbEnv::rep_get_priority method returns the database environment priority.</p> 60<p>The DbEnv::rep_get_priority method may be called at any time during the life of the 61application.</p> 62<p>The DbEnv::rep_get_priority method 63either returns a non-zero error value 64or throws an exception that encapsulates a non-zero error value on 65failure, and returns 0 on success. 66</p> 67<b>Parameters</b> <br> 68 <b>priorityp</b><ul compact><li>The DbEnv::rep_get_priority method returns the 69database environment priority in <b>priorityp</b>.</ul> 70<br> 71<hr size=1 noshade> 72<br><b>Class</b> 73<a href="../api_cxx/env_class.html">DbEnv</a> 74<br><b>See Also</b> 75<a href="../api_cxx/rep_list.html">Replication and Related Methods</a> 76</tt> 77<table width="100%"><tr><td><br></td><td align=right> 78<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> 79</td></tr></table> 80<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 81</body> 82</html> 83
