mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
|
|
|
|
#ifndef SQL_DIGEST_STREAM_H
|
|
#define SQL_DIGEST_STREAM_H
|
|
|
|
#include "sql_digest.h"
|
|
|
|
/**
|
|
State data storage for @c digest_start, @c digest_add_token.
|
|
This structure extends the @c sql_digest_storage structure
|
|
with temporary state used only during parsing.
|
|
*/
|
|
struct sql_digest_state
|
|
{
|
|
/**
|
|
Index, in the digest token array, of the last identifier seen.
|
|
Reduce rules used in the digest computation can not
|
|
apply to tokens seen before an identifier.
|
|
@sa digest_add_token
|
|
*/
|
|
int m_last_id_index;
|
|
sql_digest_storage m_digest_storage;
|
|
|
|
inline void reset(unsigned char *token_array, uint length)
|
|
{
|
|
m_last_id_index= 0;
|
|
m_digest_storage.reset(token_array, length);
|
|
}
|
|
|
|
inline bool is_empty()
|
|
{
|
|
return m_digest_storage.is_empty();
|
|
}
|
|
};
|
|
typedef struct sql_digest_state sql_digest_state;
|
|
|
|
#endif
|
|
|