MySQL 8.0.29
Source Code Documentation
sql_digest_stream.h
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1/* Copyright (c) 2008, 2021, Oracle and/or its affiliates.
2
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12 separately licensed software that they have included with MySQL.
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
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21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23#ifndef SQL_DIGEST_STREAM_H
24#define SQL_DIGEST_STREAM_H
25
26#include "sql/sql_digest.h"
27
28union Lexer_yystype;
29
30/**
31 State data storage for @c digest_start, @c digest_add_token.
32 This structure extends the @c sql_digest_storage structure
33 with temporary state used only during parsing.
34*/
36 /**
37 Index, in the digest token array, of the last identifier seen.
38 Reduce rules used in the digest computation can not
39 apply to tokens seen before an identifier.
40 @sa digest_add_token
41 */
44
45 inline void reset(unsigned char *token_array, uint length) {
47 m_digest_storage.reset(token_array, length);
48 }
49
50 inline bool is_empty() { return m_digest_storage.is_empty(); }
51};
53
56
58 uint token_right);
59
60#endif
#define yylval
Definition: fts0pars.cc:68
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:75
sql_digest_state * digest_reduce_token(sql_digest_state *state, uint token_left, uint token_right)
Definition: sql_digest.cc:622
sql_digest_state * digest_add_token(sql_digest_state *state, uint token, Lexer_yystype *yylval)
Definition: sql_digest.cc:379
State data storage for digest_start, digest_add_token.
Definition: sql_digest_stream.h:35
bool is_empty()
Definition: sql_digest_stream.h:50
sql_digest_storage m_digest_storage
Definition: sql_digest_stream.h:43
void reset(unsigned char *token_array, uint length)
Definition: sql_digest_stream.h:45
int m_last_id_index
Index, in the digest token array, of the last identifier seen.
Definition: sql_digest_stream.h:42
Structure to store token count/array for a statement on which digest is to be calculated.
Definition: sql_digest.h:97
void reset(unsigned char *token_array, size_t length)
Definition: sql_digest.h:121
bool is_empty()
Definition: sql_digest.h:134
unsigned int uint
Definition: uca-dump.cc:29
Definition: lexer_yystype.h:32