90 lines
3.6 KiB
HTML
90 lines
3.6 KiB
HTML
<!--$Id: db_set_lorder.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: DB->set_lorder</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>DB->set_lorder</b>
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</td>
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<td align=right>
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<a href="../api_c/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.h>
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<p>
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int
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DB->set_lorder(DB *db, int lorder);
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<p>
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int
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DB->get_lorder(DB *db, int *lorderp);
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</pre></b>
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<hr size=1 noshade>
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<b>Description: DB->set_lorder</b>
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<p>Set the byte order for integers in the stored database metadata. The
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host byte order of the machine where the Berkeley DB library was compiled will
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be used if no byte order is set.</p>
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<p><b>The access methods provide no guarantees about the byte ordering of the
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application data stored in the database, and applications are responsible
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for maintaining any necessary ordering.</b></p>
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<p>The DB->set_lorder method configures a database, not only operations performed
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using the specified <a href="../api_c/db_class.html">DB</a> handle.</p>
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<p>The DB->set_lorder method may not be called after the <a href="../api_c/db_open.html">DB->open</a> method is called.
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If the database already exists when
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<a href="../api_c/db_open.html">DB->open</a> is called, the information specified to DB->set_lorder will
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be ignored.
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</p>
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If creating additional databases in a single physical file, information
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specified to DB->set_lorder will be ignored and the byte order
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of the existing databases will be used.
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<p>The DB->set_lorder method
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returns a non-zero error value on failure
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and 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>lorder</b><ul compact><li>The <b>lorder</b> parameter should represent the byte order as an
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integer; for example, big endian order is the number 4,321, and little
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endian order is the number 1,234.</ul>
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<br>
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<br><b>Errors</b>
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<p>The DB->set_lorder method
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may fail and return one of the following non-zero errors:</p>
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<br>
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<b>EINVAL</b><ul compact><li>If the method was called after <a href="../api_c/db_open.html">DB->open</a> was called; or if 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: DB->get_lorder</b>
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<p>The DB->get_lorder method returns the database byte order; a byte order of 4,321 indicates a big endian
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order, and a byte order of 1,234 indicates a little endian order.</p>
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<p>The DB->get_lorder method may be called at any time during the life of the
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application.</p>
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<p>The DB->get_lorder method
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returns a non-zero error value on failure
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and 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>lorderp</b><ul compact><li>The DB->get_lorder method returns the
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database byte order in <b>lorderp</b>.</ul>
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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_c/db_class.html">DB</a>
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<br><b>See Also</b>
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<a href="../api_c/db_list.html">Databases 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_c/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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