1<!--$Id: log_flush.so,v 10.31 2004/08/13 03:38:57 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: DB_ENV->log_flush</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>DB_ENV->log_flush</b> 14</td> 15<td align=right> 16<a href="/api_c/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.h> 23<p> 24int 25DB_ENV->log_flush(DB_ENV *env, const DB_LSN *lsn); 26</pre></b> 27<hr size=1 noshade> 28<b>Description: DB_ENV->log_flush</b> 29<p>The DB_ENV->log_flush method writes log records to disk.</p> 30<p>The DB_ENV->log_flush method 31returns a non-zero error value on failure 32and 0 on success. 33</p> 34<b>Parameters</b> <br> 35 <b>lsn</b><ul compact><li>All log records with <a href="/api_c/lsn_class.html">DB_LSN</a> values less than or equal to the 36<b>lsn</b> parameter are written to disk. If <b>lsn</b> is NULL, 37all records in the log are flushed.</ul> 38<br> 39<br><b>Errors</b> 40<p>The DB_ENV->log_flush method 41may fail and return one of the following non-zero errors:</p> 42<br> 43<b>EINVAL</b><ul compact><li>An 44invalid flag value or parameter was specified.</ul> 45<br> 46<hr size=1 noshade> 47<br><b>Class</b> 48<a href="/api_c/env_class.html">DB_ENV</a>, <a href="/api_c/logc_class.html">DB_LOGC</a>, <a href="/api_c/lsn_class.html">DB_LSN</a> 49<br><b>See Also</b> 50<a href="/api_c/log_list.html">Logging Subsystem and Related Methods</a> 51</tt> 52<table width="100%"><tr><td><br></td><td align=right> 53<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> 54</td></tr></table> 55<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 56</body> 57</html> 58