/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1998-2003 * Sleepycat Software. All rights reserved. * * @(#)db_join.h 11.1 (Sleepycat) 7/25/99 */ #ifndef _DB_JOIN_H_ #define _DB_JOIN_H_ /* * Joins use a join cursor that is similar to a regular DB cursor except * that it only supports c_get and c_close functionality. Also, it does * not support the full range of flags for get. */ typedef struct __join_cursor { u_int8_t *j_exhausted; /* Array of flags; is cursor i exhausted? */ DBC **j_curslist; /* Array of cursors in the join: constant. */ DBC **j_fdupcurs; /* Cursors w/ first intances of current dup. */ DBC **j_workcurs; /* Scratch cursor copies to muck with. */ DB *j_primary; /* Primary dbp. */ DBT j_key; /* Used to do lookups. */ DBT j_rdata; /* Memory used for data return. */ u_int32_t j_ncurs; /* How many cursors do we have? */ #define JOIN_RETRY 0x01 /* Error on primary get; re-return same key. */ u_int32_t flags; } JOIN_CURSOR; #endif /* !_DB_JOIN_H_ */