<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>DB_MULTIPLE_WRITE_INIT</title> <link rel="stylesheet" href="apiReference.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB C API Reference" /> <link rel="up" href="dbt.html" title="Chapter 4. The DBT Handle" /> <link rel="prev" href="DB_MULTIPLE_RECNO_NEXT.html" title="DB_MULTIPLE_RECNO_NEXT" /> <link rel="next" href="DB_MULTIPLE_WRITE_NEXT.html" title="DB_MULTIPLE_WRITE_NEXT" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">DB_MULTIPLE_WRITE_INIT</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="DB_MULTIPLE_RECNO_NEXT.html">Prev</a> </td> <th width="60%" align="center">Chapter 4. The DBT Handle </th> <td width="20%" align="right"> <a accesskey="n" href="DB_MULTIPLE_WRITE_NEXT.html">Next</a></td> </tr> </table> <hr /> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="DB_MULTIPLE_WRITE_INIT"></a>DB_MULTIPLE_WRITE_INIT</h2> </div> </div> </div> <pre class="programlisting">#include <db.h> DB_MULTIPLE_WRITE_INIT(void *pointer, DBT *data); </pre> <p> Initialize a DBT containing a bulk buffer for use with the <a class="link" href="dbput.html#put_DB_MULTIPLE">DB_MULTIPLE</a> or <a class="link" href="dbput.html#put_DB_MULTIPLE_KEY">DB_MULTIPLE_KEY</a> flags to the <a class="xref" href="dbput.html" title="DB->put()">DB->put()</a> or <a class="xref" href="dbdel.html" title="DB->del()">DB->del()</a> methods. </p> <p> This macro initializes an opaque pointer variable used for adding records to a bulk buffer. Use this macro for buffers that will contain either a data item per record (for use with <a class="link" href="dbput.html#put_DB_MULTIPLE">DB_MULTIPLE</a>), or key/data pairs, where the key is not a record number. For record number keys, use <a class="link" href="DB_MULTIPLE_RECNO_WRITE_INIT.html" title="DB_MULTIPLE_RECNO_WRITE_INIT">DB_MULTIPLE_RECNO_WRITE_INIT</a>. </p> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1659018"></a>Parameters</h3> </div> </div> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="id1658885"></a>pointer</h4> </div> </div> </div> <p> The <span class="bold"><strong>pointer</strong></span> parameter is an opaque pointer variable to be initialized. </p> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="id1659166"></a>data</h4> </div> </div> </div> <p> The <span class="bold"><strong>data</strong></span> parameter is a <a class="link" href="dbt.html" title="Chapter 4. The DBT Handle">DBT</a> structure that has been initialized by the application with a buffer to hold multiple records. The <span class="bold"><strong>ulen</strong></span> field must be set to the size of the buffer allocated by the application, and must be a multiple of 4. </p> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1657369"></a>Class</h3> </div> </div> </div> <p> <a class="link" href="dbt.html" title="Chapter 4. The DBT Handle">DBT</a> </p> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="id1657349"></a>See Also</h3> </div> </div> </div> <p> <a class="xref" href="dbt.html#dbtlist" title="DBT and Bulk Operations">DBT and Bulk Operations</a> </p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="DB_MULTIPLE_RECNO_NEXT.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="dbt.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="DB_MULTIPLE_WRITE_NEXT.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">DB_MULTIPLE_RECNO_NEXT </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> DB_MULTIPLE_WRITE_NEXT</td> </tr> </table> </div> </body> </html>