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<h1>DB_ENV</h1>
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<h3><pre>
#include <db.h>
<p>
typedef struct __db_env DB_ENV;
</pre></h3>
<h1>Description</h1>
<p>The DB_ENV object is the handle for a Berkeley DB environment -- a
collection including support for some or all of caching, locking,
logging and transaction subsystems, as well as databases and log files.
Methods off the DB_ENV handle are used to configure the
environment as well as to operate on subsystems and databases in the
environment.
<p>DB_ENV handles are free-threaded if the <a href="../api_c/env_open.html#DB_THREAD">DB_THREAD</a> flag
is specified to the <a href="../api_c/env_open.html">DB_ENV->open</a> method when the environment is opened.
The DB_ENV handle should not be closed while any other handle
remains open that is using it as a reference (for example, <a href="../api_c/db_class.html">DB</a>
or <a href="../api_c/txn_class.html">DB_TXN</a>). Once either the <a href="../api_c/env_close.html">DB_ENV->close</a> or
<a href="../api_c/env_remove.html">DB_ENV->remove</a> methods are called, the handle may not be accessed again,
regardless of the method's return.
<h1>Class</h1>
DB_ENV
<h1>See Also</h1>
<a href="../api_c/env_list.html">Database Environments and Related Methods</a>
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