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<! "@(#)flush.so 10.9 (Sleepycat) 10/2/98">
<!Copyright 1997, 1998 by Sleepycat Software, Inc. All rights reserved.>
<html>
<body bgcolor=white>
<head>
<title>Berkeley DB: log_flush</title>
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btr
ee,hash,hashing,transaction,transactions,locking,logging,access method,access me
thods,java,C,C++">
</head>
<h1>log_flush</h1>
<hr size=1 noshade>
<tt>
<h3>
<pre>
#include <db.h>
<p>
int
log_flush(DB_LOG *logp, const DB_LSN *lsn);
</pre>
</h3>
<h1>Description</h1>
<p>
The log_flush function guarantees that all log records whose
DB_LSN values
are less than or equal to the <b>lsn</b> argument have been
written to disk. If <b>lsn</b> is NULL, all records in the
log are flushed.
<p>
The log_flush
function returns the value of <b>errno</b> on failure, and 0 on success.
<p>
<h1>Errors</h1>
If a fatal error occurs in Berkeley DB, the log_flush function may fail and return
DB_RUNRECOVERY, at which point all subsequent database calls will also
return DB_RUNRECOVERY.
<p>
The log_flush
function may fail and return <b>errno</b>
for any of the errors specified for the following Berkeley DB and C library
functions:
abort(3),
close(3),
dbenv->db_paniccall(3),
fcntl(3),
fflush(3),
fprintf(3),
free(3),
fsync(3),
getenv(3),
getpid(3),
getuid(3),
isdigit(3),
lseek(3),
malloc(3),
memcpy(3),
memset(3),
open(3),
sigfillset(3),
sigprocmask(3),
snprintf(3),
stat(3),
strerror(3),
strlen(3),
unlink(3),
vfprintf(3),
vsnprintf(3),
and
write(3).
<p>
In addition, the log_flush
function may fail and return <b>errno</b>
for the following conditions:
<dl compact>
<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
<p>
</dl>
<p>
<h1>See Also</h1>
<a href="../../api_c/DbLog/archive.html">log_archive</a>,
<a href="../../api_c/DbLog/close.html">log_close</a>,
<a href="../../api_c/DbLog/compare.html">log_compare</a>,
<a href="../../api_c/DbLog/file.html">log_file</a>,
log_flush,
<a href="../../api_c/DbLog/get.html">log_get</a>,
<a href="../../api_c/DbLog/open.html">log_open</a>,
<a href="../../api_c/DbLog/put.html">log_put</a>,
<a href="../../api_c/DbLog/db_register.html">log_register</a>,
<a href="../../api_c/DbLog/stat.html">log_stat</a>,
<a href="../../api_c/DbLog/unlink.html">log_unlink</a>
and
<a href="../../api_c/DbLog/db_unregister.html">log_unregister</a>.
</tt>
</body>
</html>
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