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diff --git a/bdb/docs/ref/program/scope.html b/bdb/docs/ref/program/scope.html deleted file mode 100644 index 19814793259..00000000000 --- a/bdb/docs/ref/program/scope.html +++ /dev/null @@ -1,71 +0,0 @@ -<!--$Id: scope.so,v 10.3 2000/08/10 17:54:49 bostic Exp $--> -<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.--> -<!--All rights reserved.--> -<html> -<head> -<title>Berkeley DB Reference Guide: Berkeley DB handles</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>Programmer Notes</dl></h3></td> -<td width="1%"><a href="../../ref/program/mt.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/program/namespace.html"><img src="../../images/next.gif" alt="Next"></a> -</td></tr></table> -<p> -<h1 align=center>Berkeley DB handles</h1> - <a name="3"><!--meow--></a> -<p>The Berkeley DB library has a number of object handles. The following table -lists those handles, their scope, and if they are free-threaded, that -is, if multiple threads within a process can share them. -<p><dl compact> -<p><dt>DB_ENV<dd>The DB_ENV handle is created by the <a href="../../api_c/env_create.html">db_env_create</a> function and -references a Berkeley DB database environment, a collection of -databases and Berkeley DB subsystems. 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">DBENV->open</a> function -when the environment is opened. The handle should not be closed while -any other handle remains open that is using it as a reference -(e.g., DB or DB_TXN). Once either the <a href="../../api_c/env_close.html">DBENV->close</a> or -<a href="../../api_c/env_remove.html">DBENV->remove</a> functions are called, the handle may not be accessed again, -regardless of the function's return. -<p><dt>DB_TXN<dd>The DB_TXN handle is created by the <a href="../../api_c/txn_begin.html">txn_begin</a> function and -references a single transaction. The handle is not free-threaded, and -transactions may not span threads nor may transactions be used by more -than a single thread. -Once the -<a href="../../api_c/txn_abort.html">txn_abort</a> or <a href="../../api_c/txn_commit.html">txn_commit</a> functions are called, the handle may -not be accessed again, regardless of the function's return. -In addition, parent transactions may not issue -any Berkeley DB operations, except for <a href="../../api_c/txn_begin.html">txn_begin</a>, <a href="../../api_c/txn_abort.html">txn_abort</a> -and <a href="../../api_c/txn_commit.html">txn_commit</a>, while it has active child transactions (child -transactions that have not yet been committed or aborted). -<p><dt>DB_MPOOLFILE<dd>The DB_MPOOLFILE handle references an open file in the shared -memory buffer pool of the database environment. The handle is not -free-threaded. Once the <a href="../../api_c/memp_fclose.html">memp_fclose</a> function is called, the handle may -not be accessed again, regardless of the function's return. -<p><dt>DB<dd>The DB handle is created by the <a href="../../api_c/db_create.html">db_create</a> function and -references a single Berkeley DB database, which may or may not be part of a -database environment. DB 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/db_open.html">DB->open</a> function when the -database is opened, or if the database environment in which the database -is opened is free-threaded. The handle should not be closed while any -other handle that references the database is in use, e.g., database -handles must not be closed while cursor handles into the database remain -open, or transactions which include operations on the database have not -yet been committed or aborted. Once the <a href="../../api_c/db_close.html">DB->close</a>, -<a href="../../api_c/db_remove.html">DB->remove</a> or <a href="../../api_c/db_rename.html">DB->rename</a> functions are called, the handle may -not be accessed again, regardless of the function's return. -<p><dt>DBC<dd>The DBC handle references a cursor into a Berkeley DB database. The -handle is not free-threaded and cursors may not span threads nor may -cursors be used by more than a single thread. If the cursor is to be -used to perform operations on behalf of a transaction, the cursor must -be opened and closed within the context of that single transaction. -Once <a href="../../api_c/dbc_close.html">DBcursor->c_close</a> has been called, the handle may not be accessed -again, regardless of the function's return. -</dl> -<table><tr><td><br></td><td width="1%"><a href="../../ref/program/mt.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/program/namespace.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> |