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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2008-2011 WiredTiger, Inc.
* All rights reserved.
*
* $Id$
*/
#include "wt_internal.h"
/*
* __wt_db_btree_compare_int_set_verify --
* Verify arguments to the Db.btree_compare_int_set method.
*/
int
__wt_db_btree_compare_int_set_verify(DB *db, int btree_compare_int)
{
if (btree_compare_int >= 0 && btree_compare_int <= 8)
return (0);
__wt_api_db_errx(db,
"The number of bytes must be an integral value between 1 and 8");
return (WT_ERROR);
}
/*
* __wt_db_btree_dup_offpage_set_verify --
* Verify arguments to the Db.btree_dup_offpage_set method.
*/
int
__wt_db_btree_dup_offpage_set_verify(DB *db, uint32_t dup_offpage)
{
/*
* Limiting this value to something between 10 and 50 is a sanity test,
* not a hard constraint (although a value of 100 might fail hard).
*
* If the value is too large, pages can end up being empty because it
* isn't possible for duplicate sets to span pages. So, if you set
* the value to 50%, and you have two sequential, large duplicate sets,
* you end up with two, half-empty pages.
*/
if (dup_offpage > 10 && dup_offpage <= 50)
return (0);
__wt_api_db_errx(db,
"The percent of the page taken up by duplicate entries before "
"being moved off-page must must be between 10 and 50");
return (WT_ERROR);
}
/*
* __wt_db_column_set_verify --
* Verify arguments to the Db.column_set method.
*/
int
__wt_db_column_set_verify(
DB *db, uint32_t fixed_len, const char *dictionary, uint32_t flags)
{
ENV *env;
IDB *idb;
env = db->env;
idb = db->idb;
/*
* The fixed-length number of bytes is stored in a single byte, which
* limits the size to 255 bytes.
*/
WT_RET(__wt_api_arg_max(
env, "DB.column_set", "fixed_len", fixed_len, 255));
/* Run-length encoding is incompatible with variable length records. */
if (fixed_len == 0 && LF_ISSET(WT_RLE)) {
__wt_api_db_errx(db,
"Run-length encoding is incompatible with variable length "
"column-store records");
return (WT_ERROR);
}
if (LF_ISSET(WT_RLE))
F_SET(idb, WT_RLE);
F_SET(idb, WT_COLUMN);
return (0);
}
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