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71 lines
3.6 KiB
HTML
<!--$Id: db_set_paniccall.so,v 10.11 2000/07/09 19:12:16 bostic Exp $-->
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<!--$Id: m4.errset,v 10.8 2000/02/19 20:57:57 bostic Exp $-->
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<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
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<!--All rights reserved.-->
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<html>
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<head>
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<title>Berkeley DB: DB->set_paniccall</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,b+tree,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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<a name="2"><!--meow--></a>
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<table><tr valign=top>
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<td>
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<h1>DB->set_paniccall</h1>
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</td>
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<td width="1%">
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<a href="../api_c/c_index.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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<hr size=1 noshade>
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<tt>
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<h3><pre>
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#include <db.h>
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<p>
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int
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DB->set_paniccall(DB *db,
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void (*paniccall)(DB_ENV *, int errval));
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</pre></h3>
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<h1>Description</h1>
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<p>Errors can occur in the Berkeley DB library where the only solution is to shut
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down the application and run recovery. (For example, if Berkeley DB is unable
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to write log records to disk because there is insufficient disk space.)
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In these cases, the value <a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</a> is returned by Berkeley DB.
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<p>In these cases, it is also often simpler to shut down the application when
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such errors occur rather than attempting to gracefully return up the stack.
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The DB->set_paniccall function is used to specify a function to be called when
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<a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</a> is about to be returned from a Berkeley DB method. When
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called, the <b>dbenv</b> argument will be a reference to the current
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environment, and the <b>errval</b> argument is the error value that would
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have been returned to the calling function.
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<p>For DB handles opened inside of Berkeley DB environments, calling the
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DB->set_paniccall function affects the entire environment and is equivalent to calling
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the <a href="../api_c/env_set_paniccall.html">DBENV->set_paniccall</a> function.
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<p>The DB->set_paniccall interface may be used to configure Berkeley DB at any time
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during the life of the application.
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<p>The DB->set_paniccall function returns a non-zero error value on failure and 0 on success.
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<h1>See Also</h1>
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<a href="../api_c/env_close.html">DBENV->close</a>,
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<a href="../api_c/env_create.html">db_env_create</a>,
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<a href="../api_c/env_open.html">DBENV->open</a>,
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<a href="../api_c/env_remove.html">DBENV->remove</a>,
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<a href="../api_c/db_err.html">DBENV->err</a>,
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<a href="../api_c/env_strerror.html">db_strerror</a>,
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<a href="../api_c/env_version.html">db_version</a>,
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<a href="../api_c/env_set_cachesize.html">DBENV->set_cachesize</a>,
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<a href="../api_c/env_set_errcall.html">DBENV->set_errcall</a>,
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<a href="../api_c/env_set_errfile.html">DBENV->set_errfile</a>,
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<a href="../api_c/env_set_errpfx.html">DBENV->set_errpfx</a>,
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<a href="../api_c/env_set_flags.html">DBENV->set_flags</a>,
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<a href="../api_c/env_set_mutexlocks.html">DBENV->set_mutexlocks</a>,
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<a href="../api_c/env_set_paniccall.html">DBENV->set_paniccall</a>,
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and
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<a href="../api_c/env_set_verbose.html">DBENV->set_verbose</a>.
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</tt>
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<table><tr><td><br></td><td width="1%">
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<a href="../api_c/c_index.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><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
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