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diff --git a/bdb/docs/ref/env/create.html b/bdb/docs/ref/env/create.html deleted file mode 100644 index 374c7a6e005..00000000000 --- a/bdb/docs/ref/env/create.html +++ /dev/null @@ -1,73 +0,0 @@ -<!--$Id: create.so,v 10.23 2000/12/04 18:05:41 bostic Exp $--> -<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.--> -<!--All rights reserved.--> -<html> -<head> -<title>Berkeley DB Reference Guide: Creating an Environment</title> -<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> -<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++"> -</head> -<body bgcolor=white> - <a name="2"><!--meow--></a> -<table><tr valign=top> -<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Environment</dl></h3></td> -<td width="1%"><a href="../../ref/env/intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/env/naming.html"><img src="../../images/next.gif" alt="Next"></a> -</td></tr></table> -<p> -<h1 align=center>Creating an Environment</h1> -<p>The <a href="../../api_c/env_open.html">DBENV->open</a> function is the standard function for creating or -joining a database environment. Transaction-protected or multi-process -applications should call <a href="../../api_c/env_open.html">DBENV->open</a> before making any other calls -to the Berkeley DB library. Applications must obtain an environment handle from -the <a href="../../api_c/env_create.html">db_env_create</a> function before calling <a href="../../api_c/env_open.html">DBENV->open</a>. -There are a large number of options that you can set to customize -<a href="../../api_c/env_open.html">DBENV->open</a> for your environment. These options fall into four -broad categories: -<p><dl compact> -<p><dt>Subsystem Initialization:<dd>These flags indicate which Berkeley DB subsystems will be initialized for the -environment, and, what operations will happen automatically when -databases are accessed within the environment. The flags include -<a href="../../api_c/env_open.html#DB_JOINENV">DB_JOINENV</a>, <a href="../../api_c/env_open.html#DB_INIT_CDB">DB_INIT_CDB</a>, <a href="../../api_c/env_open.html#DB_INIT_LOCK">DB_INIT_LOCK</a>, -<a href="../../api_c/env_open.html#DB_INIT_LOG">DB_INIT_LOG</a>, <a href="../../api_c/env_open.html#DB_INIT_MPOOL">DB_INIT_MPOOL</a> and <a href="../../api_c/env_open.html#DB_INIT_TXN">DB_INIT_TXN</a>. -The <a href="../../api_c/env_open.html#DB_INIT_CDB">DB_INIT_CDB</a> flag does initialization for Berkeley DB Concurrent Data Store -applications, see <a href="../../ref/cam/intro.html">Building Berkeley DB Concurrent Data Store -applications</a> for more information. The rest of the flags initialize -a single subsystem, e.g., when <a href="../../api_c/env_open.html#DB_INIT_LOCK">DB_INIT_LOCK</a> is specified, -applications reading and writing databases opened in this environment -will be using locking to ensure that they do not overwrite each other's -changes. -<p><dt>Recovery options:<dd>These flags indicate what recovery is to be performed on the environment -before it is opened for normal use, and include <a href="../../api_c/env_open.html#DB_RECOVER">DB_RECOVER</a> and -<a href="../../api_c/env_open.html#DB_RECOVER_FATAL">DB_RECOVER_FATAL</a>. -<p><dt>Naming options:<dd>These flags modify how file naming happens in the environment, and include -<a href="../../api_c/env_open.html#DB_USE_ENVIRON">DB_USE_ENVIRON</a> and <a href="../../api_c/env_open.html#DB_USE_ENVIRON_ROOT">DB_USE_ENVIRON_ROOT</a>. -<p><dt>Miscellaneous:<dd>Finally, there are a number of miscellaneous flags such as <a href="../../api_c/env_open.html#DB_CREATE">DB_CREATE</a> -which causes underlying files to be created as necessary. See the -<a href="../../api_c/env_open.html">DBENV->open</a> manual pages for further information. -</dl> -<p>Most applications either specify only the <a href="../../api_c/env_open.html#DB_INIT_MPOOL">DB_INIT_MPOOL</a> flag or -they specify all four subsystem initialization flags -(<a href="../../api_c/env_open.html#DB_INIT_MPOOL">DB_INIT_MPOOL</a>, <a href="../../api_c/env_open.html#DB_INIT_LOCK">DB_INIT_LOCK</a>, <a href="../../api_c/env_open.html#DB_INIT_LOG">DB_INIT_LOG</a> and -<a href="../../api_c/env_open.html#DB_INIT_TXN">DB_INIT_TXN</a>). The former configuration is for applications that -simply want to use the basic Access Method interfaces with a shared -underlying buffer pool, but don't care about recoverability after -application or system failure. The latter is for applications that need -recoverability. There are situations where other combinations of the -initialization flags make sense, but they are rare. -<p>The <a href="../../api_c/env_open.html#DB_RECOVER">DB_RECOVER</a> flag is specified by applications that want to -perform any necessary database recovery when they start running, i.e., if -there was a system or application failure the last time they ran, they -want the databases to be made consistent before they start running again. -It is not an error to specify this flag when no recovery needs to be -done. -<p>The <a href="../../api_c/env_open.html#DB_RECOVER_FATAL">DB_RECOVER_FATAL</a> flag is more special-purpose. It performs -catastrophic database recovery, and normally requires that some initial -arrangements be made, i.e., archived log files be brought back into the -filesystem. Applications should not normally specify this flag. Instead, -under these rare conditions, the <a href="../../utility/db_recover.html">db_recover</a> utility should be -used. -<table><tr><td><br></td><td width="1%"><a href="../../ref/env/intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/env/naming.html"><img src="../../images/next.gif" alt="Next"></a> -</td></tr></table> -<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> -</body> -</html> |