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Diffstat (limited to 'db2/log/log.src')
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+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ * Sleepycat Software. All rights reserved.
+ *
+ * @(#)log.src 10.3 (Sleepycat) 8/20/97
+ *
+ * This is the source file used to create the logging functions for the
+ * log package. Each access method (or set of routines wishing to register
+ * record types with the transaction system) should have a file like this.
+ * Each type of log record and its parameters is defined. The basic
+ * format of a record definition is:
+ *
+ * BEGIN <RECORD_TYPE>
+ * ARG|STRING|POINTER <variable name> <variable type> <printf format>
+ * ...
+ * END
+ * ARG the argument is a simple parameter of the type * specified.
+ * DBT the argument is a DBT (db.h) containing a length and pointer.
+ * PTR the argument is a pointer to the data type specified; the entire
+ * type should be logged.
+ *
+ * There are a set of shell scripts of the form xxx.sh that generate c
+ * code and or h files to process these. (This is probably better done
+ * in a single PERL script, but for now, this works.)
+ *
+ * The DB recovery system requires the following three fields appear in
+ * every record, and will assign them to the per-record-type structures
+ * as well as making them the first parameters to the appropriate logging
+ * call.
+ * rectype: record-type, identifies the structure and log/read call
+ * txnid: transaction id, a DBT in this implementation
+ * prev: the last LSN for this transaction
+ */
+
+/*
+ * Use the argument of PREFIX as the prefix for all record types,
+ * routines, id numbers, etc.
+ */
+PREFIX log
+
+/* Used for registering new name/id translations. */
+BEGIN register
+DBT name DBT s
+DBT uid DBT s
+ARG id u_int32_t lu
+ARG ftype DBTYPE lx
+END
+
+BEGIN unregister
+ARG id u_int32_t lu
+END