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<!--$Id: env_set_verbose.so,v 10.56 2008/01/19 14:12:57 bostic Exp $--> <!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbEnv::set_verbose</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::set_verbose</b> </td> <td align=right> <a href="../../db4-devel-4.7.25/api_cxx/api_core.html"><img src="../../db4-devel-4.7.25/images/api.gif" alt="API"></a> <a href="../../db4-devel-4.7.25/ref/toc.html"><img src="../../db4-devel-4.7.25/images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <b><pre> #include <db_cxx.h> <p> int DbEnv::set_verbose(u_int32_t which, int onoff); <p> int DbEnv::get_verbose(u_int32_t which, int *onoffp); </pre></b> <hr size=1 noshade> <b>Description: DbEnv::set_verbose</b> <p>The DbEnv::set_verbose method turns specific additional informational and debugging messages in the Berkeley DB message output on and off. To see the additional messages, verbose messages must also be configured for the application. For more information on verbose messages, see the <a href="../../db4-devel-4.7.25/api_cxx/env_set_msgfile.html">DbEnv::set_msgfile</a> method.</p> <p>The database environment's messages may also be configured using the environment's <a href="../../db4-devel-4.7.25/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 "set_verbose", one or more whitespace characters, and the method <b>which</b> parameter as a string; for example, "set_verbose DB_VERB_RECOVERY". Because the <a href="../../db4-devel-4.7.25/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::set_verbose method configures operations performed using the specified <a href="../../db4-devel-4.7.25/api_cxx/env_class.html">DbEnv</a> handle, not all operations performed on the underlying database environment.</p> <p>The DbEnv::set_verbose method may be called at any time during the life of the application.</p> <p>The DbEnv::set_verbose 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>onoff</b><ul compact><li>If the <b>onoff</b> parameter is set to non-zero, the additional messages are output.</ul> <b>which</b><ul compact><li>The <b>which</b> parameter must be set to one of the following values: <br> <b><a name="DB_VERB_DEADLOCK">DB_VERB_DEADLOCK</a></b><ul compact><li>Display additional information when doing deadlock detection.</ul> <b><a name="DB_VERB_FILEOPS">DB_VERB_FILEOPS</a></b><ul compact><li>Display additional information when performing filesystem operations such as open, close or rename. May not be available on all platforms.</ul> <b><a name="DB_VERB_FILEOPS_ALL">DB_VERB_FILEOPS_ALL</a></b><ul compact><li>Display additional information when performing all filesystem operations, including read and write. May not be available on all platforms.</ul> <b><a name="DB_VERB_RECOVERY">DB_VERB_RECOVERY</a></b><ul compact><li>Display additional information when performing recovery.</ul> <b><a name="DB_VERB_REGISTER">DB_VERB_REGISTER</a></b><ul compact><li>Display additional information concerning support for the <a href="../../db4-devel-4.7.25/api_cxx/env_open.html#DB_REGISTER">DB_REGISTER</a> flag to the <a href="../../db4-devel-4.7.25/api_cxx/env_open.html">DbEnv::open</a> method.</ul> <b><a name="DB_VERB_REPLICATION">DB_VERB_REPLICATION</a></b><ul compact><li>Display all detailed information about replication. This includes the information displayed by all of the other DB_VERB_REP_* and DB_VERB_REPMGR_* values.</ul> <b><a name="DB_VERB_REP_ELECT">DB_VERB_REP_ELECT</a></b><ul compact><li>Display detailed information about replication elections.</ul> <b><a name="DB_VERB_REP_LEASE">DB_VERB_REP_LEASE</a></b><ul compact><li>Display detailed information about replication master leases.</ul> <b><a name="DB_VERB_REP_MISC">DB_VERB_REP_MISC</a></b><ul compact><li>Display detailed information about general replication processing not covered by the other DB_VERB_REP_* values.</ul> <b><a name="DB_VERB_REP_MSGS">DB_VERB_REP_MSGS</a></b><ul compact><li>Display detailed information about replication message processing.</ul> <b><a name="DB_VERB_REP_SYNC">DB_VERB_REP_SYNC</a></b><ul compact><li>Display detailed information about replication client synchronization.</ul> <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> <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> <b><a name="DB_VERB_WAITSFOR">DB_VERB_WAITSFOR</a></b><ul compact><li>Display the waits-for table when doing deadlock detection.</ul> <br></ul> <br> <br><b>Errors</b> <p>The DbEnv::set_verbose method may fail and throw <a href="../../db4-devel-4.7.25/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> <br> <b>EINVAL</b><ul compact><li>An invalid flag value or parameter was specified.</ul> <br> <hr size=1 noshade> <b>Description: <a href="../../db4-devel-4.7.25/api_cxx/env_set_verbose.html">DbEnv::get_verbose</a></b> <p>The <a href="../../db4-devel-4.7.25/api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> method returns whether the specified <b>which</b> parameter is currently set or not.</p> <p>The <a href="../../db4-devel-4.7.25/api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> method may be called at any time during the life of the application.</p> <p>The <a href="../../db4-devel-4.7.25/api_cxx/env_set_verbose.html">DbEnv::get_verbose</a> 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>which</b><ul compact><li>The <b>which</b> parameter is the message value for which configuration is being checked.</ul> <b>onoffp</b><ul compact><li>The <b>onoffp</b> parameter references memory into which 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; otherwise on. <br> <hr size=1 noshade> <br><b>Class</b> <a href="../../db4-devel-4.7.25/api_cxx/env_class.html">DbEnv</a> <br><b>See Also</b> <a href="../../db4-devel-4.7.25/api_cxx/env_list.html">Database Environments and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db4-devel-4.7.25/api_cxx/api_core.html"><img src="../../db4-devel-4.7.25/images/api.gif" alt="API"></a><a href="../../db4-devel-4.7.25/ref/toc.html"><img src="../../db4-devel-4.7.25/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2008 Oracle. 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