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DB_ENV-&gt;log_put
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<pre>
#include &lt;db.h&gt;

int
DB_ENV-&gt;log_put(DB_ENV *env,
 DB_LSN *lsn, const DBT *data, u_int32_t flags);
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Description: DB_ENV-&gt;log_put
The DB_ENV-&gt;log_put method appends records to the log. The <a href="../../db4-devel-4.7.25/api_c/lsn_class.html">DB_LSN</a> of
the put record is returned in the lsn parameter.
The DB_ENV-&gt;log_put method
returns a non-zero error value on failure
and 0 on success.

Parameters 
 data<ul compact><li>The data parameter is the record to write to the log.
The caller is responsible for providing any necessary structure to
data. (For example, in a write-ahead logging protocol, the
application must understand what part of data is an operation
code, what part is redo information, and what part is undo information.
In addition, most transaction managers will store in data the
<a href="../../db4-devel-4.7.25/api_c/lsn_class.html">DB_LSN</a> of the previous log record for the same transaction, to
support chaining back through the transaction's log records during
undo.)</ul>
 flags<ul compact><li>The flags parameter must be set to 0 or
the following value:
 
<a name="DB_FLUSH">DB_FLUSH</a><ul compact><li>The log is forced to disk after this record is written, guaranteeing
that all records with <a href="../../db4-devel-4.7.25/api_c/lsn_class.html">DB_LSN</a> values less than or equal to the
one being "put" are on disk before DB_ENV-&gt;log_put returns.</ul>
 </ul>
 lsn<ul compact><li>The lsn parameter references memory into which
 the <a href="../../db4-devel-4.7.25/api_c/lsn_class.html">DB_LSN</a> of the put record is copied.</ul> 
 
 Errors
The <a href="../../db4-devel-4.7.25/api_c/log_flush.html">DB_ENV-&gt;log_flush</a> method
may fail and return one of the following non-zero errors:
 
EINVAL<ul compact><li>If the record to be logged is larger than the maximum log record; or if an
invalid flag value or parameter was specified.</ul>
 
<hr size=1 noshade>
 Class
<a href="../../db4-devel-4.7.25/api_c/env_class.html">DB_ENV</a>, <a href="../../db4-devel-4.7.25/api_c/logc_class.html">DB_LOGC</a>, <a href="../../db4-devel-4.7.25/api_c/lsn_class.html">DB_LSN</a>
 See Also
<a href="../../db4-devel-4.7.25/api_c/log_list.html">Logging Subsystem and Related Methods</a>
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