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Diffstat (limited to 'db2/db/db_iface.c')
-rw-r--r--db2/db/db_iface.c488
1 files changed, 0 insertions, 488 deletions
diff --git a/db2/db/db_iface.c b/db2/db/db_iface.c
deleted file mode 100644
index 4ebf3ba019..0000000000
--- a/db2/db/db_iface.c
+++ /dev/null
@@ -1,488 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998
- * Sleepycat Software. All rights reserved.
- */
-
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)db_iface.c 10.40 (Sleepycat) 12/19/98";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <errno.h>
-#endif
-
-#include "db_int.h"
-#include "db_page.h"
-#include "db_auto.h"
-#include "db_ext.h"
-#include "common_ext.h"
-
-static int __db_keyempty __P((const DB_ENV *));
-static int __db_rdonly __P((const DB_ENV *, const char *));
-static int __dbt_ferr __P((const DB *, const char *, const DBT *, int));
-
-/*
- * __db_cdelchk --
- * Common cursor delete argument checking routine.
- *
- * PUBLIC: int __db_cdelchk __P((const DB *, u_int32_t, int, int));
- */
-int
-__db_cdelchk(dbp, flags, isrdonly, isvalid)
- const DB *dbp;
- u_int32_t flags;
- int isrdonly, isvalid;
-{
- /* Check for changes to a read-only tree. */
- if (isrdonly)
- return (__db_rdonly(dbp->dbenv, "c_del"));
-
- /* Check for invalid function flags. */
- switch (flags) {
- case 0:
- break;
- default:
- return (__db_ferr(dbp->dbenv, "DBcursor->c_del", 0));
- }
-
- /*
- * The cursor must be initialized, return -1 for an invalid cursor,
- * otherwise 0.
- */
- return (isvalid ? 0 : EINVAL);
-}
-
-/*
- * __db_cgetchk --
- * Common cursor get argument checking routine.
- *
- * PUBLIC: int __db_cgetchk __P((const DB *, DBT *, DBT *, u_int32_t, int));
- */
-int
-__db_cgetchk(dbp, key, data, flags, isvalid)
- const DB *dbp;
- DBT *key, *data;
- u_int32_t flags;
- int isvalid;
-{
- int key_einval, key_flags, ret;
-
- key_einval = key_flags = 0;
-
- /* Check for invalid function flags. */
- LF_CLR(DB_RMW);
- switch (flags) {
- case DB_NEXT_DUP:
- if (dbp->type == DB_RECNO)
- goto err;
- /* FALLTHROUGH */
- case DB_CURRENT:
- case DB_FIRST:
- case DB_LAST:
- case DB_NEXT:
- case DB_PREV:
- key_flags = 1;
- break;
- case DB_GET_BOTH:
- case DB_SET_RANGE:
- key_einval = key_flags = 1;
- break;
- case DB_SET:
- key_einval = 1;
- break;
- case DB_GET_RECNO:
- if (!F_ISSET(dbp, DB_BT_RECNUM))
- goto err;
- break;
- case DB_SET_RECNO:
- if (!F_ISSET(dbp, DB_BT_RECNUM))
- goto err;
- key_einval = key_flags = 1;
- break;
- default:
-err: return (__db_ferr(dbp->dbenv, "DBcursor->c_get", 0));
- }
-
- /* Check for invalid key/data flags. */
- if ((ret = __dbt_ferr(dbp, "key", key, 0)) != 0)
- return (ret);
- if ((ret = __dbt_ferr(dbp, "data", data, 0)) != 0)
- return (ret);
-
- /* Check for missing keys. */
- if (key_einval && (key->data == NULL || key->size == 0))
- return (__db_keyempty(dbp->dbenv));
-
- /*
- * The cursor must be initialized for DB_CURRENT, return -1 for an
- * invalid cursor, otherwise 0.
- */
- return (isvalid || flags != DB_CURRENT ? 0 : EINVAL);
-}
-
-/*
- * __db_cputchk --
- * Common cursor put argument checking routine.
- *
- * PUBLIC: int __db_cputchk __P((const DB *,
- * PUBLIC: const DBT *, DBT *, u_int32_t, int, int));
- */
-int
-__db_cputchk(dbp, key, data, flags, isrdonly, isvalid)
- const DB *dbp;
- const DBT *key;
- DBT *data;
- u_int32_t flags;
- int isrdonly, isvalid;
-{
- int key_einval, key_flags, ret;
-
- key_einval = key_flags = 0;
-
- /* Check for changes to a read-only tree. */
- if (isrdonly)
- return (__db_rdonly(dbp->dbenv, "c_put"));
-
- /* Check for invalid function flags. */
- switch (flags) {
- case DB_AFTER:
- case DB_BEFORE:
- if (dbp->dup_compare != NULL)
- goto err;
- if (dbp->type == DB_RECNO && !F_ISSET(dbp, DB_RE_RENUMBER))
- goto err;
- if (dbp->type != DB_RECNO && !F_ISSET(dbp, DB_AM_DUP))
- goto err;
- break;
- case DB_CURRENT:
- /*
- * If there is a comparison function, doing a DB_CURRENT
- * must not change the part of the data item that is used
- * for the comparison.
- */
- break;
- case DB_KEYFIRST:
- case DB_KEYLAST:
- if (dbp->type == DB_RECNO)
- goto err;
- key_einval = key_flags = 1;
- break;
- default:
-err: return (__db_ferr(dbp->dbenv, "DBcursor->c_put", 0));
- }
-
- /* Check for invalid key/data flags. */
- if (key_flags && (ret = __dbt_ferr(dbp, "key", key, 0)) != 0)
- return (ret);
- if ((ret = __dbt_ferr(dbp, "data", data, 0)) != 0)
- return (ret);
-
- /* Check for missing keys. */
- if (key_einval && (key->data == NULL || key->size == 0))
- return (__db_keyempty(dbp->dbenv));
-
- /*
- * The cursor must be initialized for anything other than DB_KEYFIRST
- * and DB_KEYLAST, return -1 for an invalid cursor, otherwise 0.
- */
- return (isvalid ||
- flags == DB_KEYFIRST || flags == DB_KEYLAST ? 0 : EINVAL);
-}
-
-/*
- * __db_closechk --
- * DB->close flag check.
- *
- * PUBLIC: int __db_closechk __P((const DB *, u_int32_t));
- */
-int
-__db_closechk(dbp, flags)
- const DB *dbp;
- u_int32_t flags;
-{
- /* Check for invalid function flags. */
- if (flags != 0 && flags != DB_NOSYNC)
- return (__db_ferr(dbp->dbenv, "DB->close", 0));
-
- return (0);
-}
-
-/*
- * __db_delchk --
- * Common delete argument checking routine.
- *
- * PUBLIC: int __db_delchk __P((const DB *, DBT *, u_int32_t, int));
- */
-int
-__db_delchk(dbp, key, flags, isrdonly)
- const DB *dbp;
- DBT *key;
- u_int32_t flags;
- int isrdonly;
-{
- /* Check for changes to a read-only tree. */
- if (isrdonly)
- return (__db_rdonly(dbp->dbenv, "delete"));
-
- /* Check for invalid function flags. */
- switch (flags) {
- case 0:
- break;
- default:
- return (__db_ferr(dbp->dbenv, "DB->del", 0));
- }
-
- /* Check for missing keys. */
- if (key->data == NULL || key->size == 0)
- return (__db_keyempty(dbp->dbenv));
-
- return (0);
-}
-
-/*
- * __db_getchk --
- * Common get argument checking routine.
- *
- * PUBLIC: int __db_getchk __P((const DB *, const DBT *, DBT *, u_int32_t));
- */
-int
-__db_getchk(dbp, key, data, flags)
- const DB *dbp;
- const DBT *key;
- DBT *data;
- u_int32_t flags;
-{
- int ret;
-
- /* Check for invalid function flags. */
- LF_CLR(DB_RMW);
- switch (flags) {
- case 0:
- case DB_GET_BOTH:
- break;
- case DB_SET_RECNO:
- if (!F_ISSET(dbp, DB_BT_RECNUM))
- goto err;
- break;
- default:
-err: return (__db_ferr(dbp->dbenv, "DB->get", 0));
- }
-
- /* Check for invalid key/data flags. */
- if ((ret = __dbt_ferr(dbp, "key", key, flags == DB_SET_RECNO)) != 0)
- return (ret);
- if ((ret = __dbt_ferr(dbp, "data", data, 1)) != 0)
- return (ret);
-
- /* Check for missing keys. */
- if (key->data == NULL || key->size == 0)
- return (__db_keyempty(dbp->dbenv));
-
- return (0);
-}
-
-/*
- * __db_joinchk --
- * Common join argument checking routine.
- *
- * PUBLIC: int __db_joinchk __P((const DB *, u_int32_t));
- */
-int
-__db_joinchk(dbp, flags)
- const DB *dbp;
- u_int32_t flags;
-{
- if (flags != 0)
- return (__db_ferr(dbp->dbenv, "DB->join", 0));
-
- return (0);
-}
-
-/*
- * __db_putchk --
- * Common put argument checking routine.
- *
- * PUBLIC: int __db_putchk
- * PUBLIC: __P((const DB *, DBT *, const DBT *, u_int32_t, int, int));
- */
-int
-__db_putchk(dbp, key, data, flags, isrdonly, isdup)
- const DB *dbp;
- DBT *key;
- const DBT *data;
- u_int32_t flags;
- int isrdonly, isdup;
-{
- int ret;
-
- /* Check for changes to a read-only tree. */
- if (isrdonly)
- return (__db_rdonly(dbp->dbenv, "put"));
-
- /* Check for invalid function flags. */
- switch (flags) {
- case 0:
- case DB_NOOVERWRITE:
- break;
- case DB_APPEND:
- if (dbp->type != DB_RECNO)
- goto err;
- break;
- default:
-err: return (__db_ferr(dbp->dbenv, "DB->put", 0));
- }
-
- /* Check for invalid key/data flags. */
- if ((ret = __dbt_ferr(dbp, "key", key, 0)) != 0)
- return (ret);
- if ((ret = __dbt_ferr(dbp, "data", data, 0)) != 0)
- return (ret);
-
- /* Check for missing keys. */
- if (key->data == NULL || key->size == 0)
- return (__db_keyempty(dbp->dbenv));
-
- /* Check for partial puts in the presence of duplicates. */
- if (isdup && F_ISSET(data, DB_DBT_PARTIAL)) {
- __db_err(dbp->dbenv,
-"a partial put in the presence of duplicates requires a cursor operation");
- return (EINVAL);
- }
-
- return (0);
-}
-
-/*
- * __db_statchk --
- * Common stat argument checking routine.
- *
- * PUBLIC: int __db_statchk __P((const DB *, u_int32_t));
- */
-int
-__db_statchk(dbp, flags)
- const DB *dbp;
- u_int32_t flags;
-{
- /* Check for invalid function flags. */
- switch (flags) {
- case 0:
- break;
- case DB_RECORDCOUNT:
- if (dbp->type == DB_RECNO)
- break;
- if (dbp->type == DB_BTREE && F_ISSET(dbp, DB_BT_RECNUM))
- break;
- goto err;
- default:
-err: return (__db_ferr(dbp->dbenv, "DB->stat", 0));
- }
-
- return (0);
-}
-
-/*
- * __db_syncchk --
- * Common sync argument checking routine.
- *
- * PUBLIC: int __db_syncchk __P((const DB *, u_int32_t));
- */
-int
-__db_syncchk(dbp, flags)
- const DB *dbp;
- u_int32_t flags;
-{
- /* Check for invalid function flags. */
- switch (flags) {
- case 0:
- break;
- default:
- return (__db_ferr(dbp->dbenv, "DB->sync", 0));
- }
-
- return (0);
-}
-
-/*
- * __dbt_ferr --
- * Check a DBT for flag errors.
- */
-static int
-__dbt_ferr(dbp, name, dbt, check_thread)
- const DB *dbp;
- const char *name;
- const DBT *dbt;
- int check_thread;
-{
- int ret;
-
- /*
- * Check for invalid DBT flags. We allow any of the flags to be
- * specified to any DB or DBcursor call so that applications can
- * set DB_DBT_MALLOC when retrieving a data item from a secondary
- * database and then specify that same DBT as a key to a primary
- * database, without having to clear flags.
- */
- if ((ret = __db_fchk(dbp->dbenv, name, dbt->flags,
- DB_DBT_MALLOC | DB_DBT_USERMEM | DB_DBT_PARTIAL)) != 0)
- return (ret);
- if ((ret = __db_fcchk(dbp->dbenv, name,
- dbt->flags, DB_DBT_MALLOC, DB_DBT_USERMEM)) != 0)
- return (ret);
-
- if (check_thread && F_ISSET(dbp, DB_AM_THREAD) &&
- !F_ISSET(dbt, DB_DBT_MALLOC | DB_DBT_USERMEM)) {
- __db_err(dbp->dbenv,
- "missing flag thread flag for %s DBT", name);
- return (EINVAL);
- }
- return (0);
-}
-
-/*
- * __db_eopnotsup --
- * Common operation not supported message.
- *
- * PUBLIC: int __db_eopnotsup __P((const DB_ENV *));
- */
-int
-__db_eopnotsup(dbenv)
- const DB_ENV *dbenv;
-{
- __db_err(dbenv, "operation not supported");
-#ifdef EOPNOTSUPP
- return (EOPNOTSUPP);
-#else
- return (EINVAL);
-#endif
-}
-
-/*
- * __db_keyempty --
- * Common missing or empty key value message.
- */
-static int
-__db_keyempty(dbenv)
- const DB_ENV *dbenv;
-{
- __db_err(dbenv, "missing or empty key value specified");
- return (EINVAL);
-}
-
-/*
- * __db_rdonly --
- * Common readonly message.
- */
-static int
-__db_rdonly(dbenv, name)
- const DB_ENV *dbenv;
- const char *name;
-{
- __db_err(dbenv, "%s: attempt to modify a read-only tree", name);
- return (EACCES);
-}
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