Import BSDDB 4.7.25 (as of svn r89086)
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Zachary Ware
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docs/api_cxx/env_set_verbose.html
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docs/api_cxx/env_set_verbose.html
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<!--$Id: env_set_verbose.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
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<!--Copyright (c) 1997,2008 Oracle. All rights reserved.-->
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<!--See the file LICENSE for redistribution information.-->
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<html>
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<head>
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<title>Berkeley DB: DbEnv::set_verbose</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++">
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</head>
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<body bgcolor=white>
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<table width="100%"><tr valign=top>
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<td>
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<b>DbEnv::set_verbose</b>
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</td>
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<td align=right>
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<a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a>
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<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td>
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</tr></table>
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<hr size=1 noshade>
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<tt>
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<b><pre>
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#include <db_cxx.h>
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<p>
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int
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DbEnv::set_verbose(u_int32_t which, int onoff);
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<p>
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int
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DbEnv::get_verbose(u_int32_t which, int *onoffp);
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</pre></b>
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<hr size=1 noshade>
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<b>Description: DbEnv::set_verbose</b>
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<p>The DbEnv::set_verbose method turns specific additional informational
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and debugging messages in the Berkeley DB message output on and off. To see
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the additional messages, verbose messages must also be configured for
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the application. For more information on verbose messages, see the
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<a href="../api_cxx/env_set_msgfile.html">DbEnv::set_msgfile</a> method.</p>
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<p>The database environment's messages may also be configured using the
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environment's <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file. The syntax of the entry in that
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file is a single line with the string "set_verbose", one or more whitespace
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characters, and the method <b>which</b> parameter as a string; for example,
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"set_verbose DB_VERB_RECOVERY".
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Because the <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file is read when the database environment
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is opened, it will silently overrule configuration done before that
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time.</p>
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<p>The DbEnv::set_verbose method configures operations performed using the specified
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<a href="../api_cxx/env_class.html">DbEnv</a> handle, not all operations performed on the underlying
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database environment.</p>
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<p>The DbEnv::set_verbose method may be called at any time during the life of the
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application.</p>
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<p>The DbEnv::set_verbose method
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either returns a non-zero error value
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or throws an exception that encapsulates a non-zero error value on
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failure, and returns 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>onoff</b><ul compact><li>If the <b>onoff</b> parameter is set to non-zero, the additional
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messages are output.</ul>
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<b>which</b><ul compact><li>The <b>which</b> parameter must be set to one of the following values:
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<br>
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<b><a name="DB_VERB_DEADLOCK">DB_VERB_DEADLOCK</a></b><ul compact><li>Display additional information when doing deadlock detection.</ul>
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<b><a name="DB_VERB_FILEOPS">DB_VERB_FILEOPS</a></b><ul compact><li>Display additional information when performing filesystem operations
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such as open, close or rename. May not be available on all platforms.</ul>
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<b><a name="DB_VERB_FILEOPS_ALL">DB_VERB_FILEOPS_ALL</a></b><ul compact><li>Display additional information when performing all filesystem operations,
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including read and write. May not be available on all platforms.</ul>
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<b><a name="DB_VERB_RECOVERY">DB_VERB_RECOVERY</a></b><ul compact><li>Display additional information when performing recovery.</ul>
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<b><a name="DB_VERB_REGISTER">DB_VERB_REGISTER</a></b><ul compact><li>Display additional information concerning support for the
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<a href="../api_cxx/env_open.html#DB_REGISTER">DB_REGISTER</a> flag to the <a href="../api_cxx/env_open.html">DbEnv::open</a> method.</ul>
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<b><a name="DB_VERB_REPLICATION">DB_VERB_REPLICATION</a></b><ul compact><li>Display all detailed information about replication. This includes the
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information displayed by all of the other DB_VERB_REP_* and DB_VERB_REPMGR_*
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values.</ul>
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<b><a name="DB_VERB_REP_ELECT">DB_VERB_REP_ELECT</a></b><ul compact><li>Display detailed information about replication elections.</ul>
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<b><a name="DB_VERB_REP_LEASE">DB_VERB_REP_LEASE</a></b><ul compact><li>Display detailed information about replication master leases.</ul>
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<b><a name="DB_VERB_REP_MISC">DB_VERB_REP_MISC</a></b><ul compact><li>Display detailed information about general replication processing not
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covered by the other DB_VERB_REP_* values.</ul>
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<b><a name="DB_VERB_REP_MSGS">DB_VERB_REP_MSGS</a></b><ul compact><li>Display detailed information about replication message processing.</ul>
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<b><a name="DB_VERB_REP_SYNC">DB_VERB_REP_SYNC</a></b><ul compact><li>Display detailed information about replication client synchronization.</ul>
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<b><a name="DB_VERB_REPMGR_CONNFAIL">DB_VERB_REPMGR_CONNFAIL</a></b><ul compact><li>Display detailed information about Replication Manager connection failures.</ul>
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<b><a name="DB_VERB_REPMGR_MISC">DB_VERB_REPMGR_MISC</a></b><ul compact><li>Display detailed information about general Replication Manager processing.</ul>
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<b><a name="DB_VERB_WAITSFOR">DB_VERB_WAITSFOR</a></b><ul compact><li>Display the waits-for table when doing deadlock detection.</ul>
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<br></ul>
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<br>
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<br><b>Errors</b>
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<p>The DbEnv::set_verbose method
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may fail and throw
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<a href="../api_cxx/except_class.html">DbException</a>,
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encapsulating one of the following non-zero errors, or return one of
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the following non-zero errors:</p>
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<br>
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<b>EINVAL</b><ul compact><li>An
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invalid flag value or parameter was specified.</ul>
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<br>
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<hr size=1 noshade>
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<b>Description: <a href="../api_cxx/env_set_verbose.html">DbEnv::get_verbose</a></b>
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<p>The <a href="../api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> method returns whether the specified <b>which</b>
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parameter is currently set or not.</p>
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<p>The <a href="../api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> method may be called at any time during the life of the
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application.</p>
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<p>The <a href="../api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> method
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either returns a non-zero error value
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or throws an exception that encapsulates a non-zero error value on
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failure, and returns 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>which</b><ul compact><li>The <b>which</b> parameter is the message value for which configuration
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is being checked.</ul>
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<b>onoffp</b><ul compact><li>The <b>onoffp</b> parameter references memory into which
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the configuration of the specified <b>which</b> parameter is copied.</ul> If the returned <b>onoff</b> value is zero, the parameter is off;
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otherwise on.
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<br>
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<hr size=1 noshade>
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<br><b>Class</b>
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<a href="../api_cxx/env_class.html">DbEnv</a>
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<br><b>See Also</b>
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<a href="../api_cxx/env_list.html">Database Environments and Related Methods</a>
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</tt>
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<table width="100%"><tr><td><br></td><td align=right>
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<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>
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</td></tr></table>
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<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font>
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</body>
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</html>
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