1<!--$Id: memp_set_ftype.so,v 10.17 2005/11/30 19:46:21 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB: DbMpoolFile::set_ftype</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td> 13<b>DbMpoolFile::set_ftype</b> 14</td> 15<td align=right> 16<a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a> 17<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db_cxx.h> 23<p> 24int 25DbMpoolFile::set(int ftype); 26<p> 27int 28DbMpoolFile::get_ftype(int *ftypep); 29</pre></b> 30<hr size=1 noshade> 31<b>Description: DbMpoolFile::set_ftype</b> 32<p>The DbMpoolFile::set_ftype method specifies a file type for the purposes of 33input or output processing of the file's pages as they are read from or 34written to, the backing filesystem store.</p> 35<p>The DbMpoolFile::set_ftype method configures a file in the memory pool, not only 36operations performed using the specified <a href="../api_cxx/mempfile_class.html">DbMpoolFile</a> handle.</p> 37<p>The DbMpoolFile::set_ftype method may not be called after the <a href="../api_cxx/memp_fopen.html">DbMpoolFile::open</a> method is 38called. 39If the file is already open in the memory pool when 40<a href="../api_cxx/memp_fopen.html">DbMpoolFile::open</a> is called, the information specified to DbMpoolFile::set_ftype 41will replace the existing information.</p> 42<p>The DbMpoolFile::set_ftype method 43either returns a non-zero error value 44or throws an exception that encapsulates a non-zero error value on 45failure, and returns 0 on success. 46</p> 47<b>Parameters</b> <br> 48 <b>ftype</b><ul compact><li>The <b>ftype</b> parameter sets the file's type for the purposes of input 49and output processing. The <b>ftype</b> must be the same as a 50<b>ftype</b> parameter previously specified to the <a href="../api_cxx/memp_register.html">DbEnv::memp_register</a> method. 51(See the <a href="../api_cxx/memp_register.html">DbEnv::memp_register</a> documentation for more information.)</ul> 52<br> 53<hr size=1 noshade> 54<b>Description: DbMpoolFile::get_ftype</b> 55<p>The DbMpoolFile::get_ftype method returns the file type.</p> 56<p>The DbMpoolFile::get_ftype method may be called at any time during the life of the 57application.</p> 58<p>The DbMpoolFile::get_ftype method 59either returns a non-zero error value 60or throws an exception that encapsulates a non-zero error value on 61failure, and returns 0 on success. 62</p> 63<b>Parameters</b> <br> 64 <b>ftypep</b><ul compact><li>The DbMpoolFile::get_ftype method returns the 65file type in <b>ftypep</b>.</ul> 66<br> 67<hr size=1 noshade> 68<br><b>Class</b> 69<a href="../api_cxx/env_class.html">DbEnv</a>, <a href="../api_cxx/mempfile_class.html">DbMpoolFile</a> 70<br><b>See Also</b> 71<a href="../api_cxx/memp_list.html">Memory Pools and Related Methods</a> 72</tt> 73<table width="100%"><tr><td><br></td><td align=right> 74<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> 75</td></tr></table> 76<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 77</body> 78</html> 79