1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* -*- c-basic-offset: 2 -*- */
/*
Copyright(C) 2011-2013 Kentoku SHIBA
Copyright(C) 2011-2012 Kouhei Sutou <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*/
#include <mrn_mysql.h>
#include "mrn_index_column_name.hpp"
#define MRN_MIN_INDEX_COLUMN_NAME_LENGTH 65
// for debug
#define MRN_CLASS_NAME "mrn::IndexColumnName"
namespace mrn {
IndexColumnName::IndexColumnName(const char *table_name,
const char *mysql_column_name)
: table_name_(table_name),
mysql_column_name_(mysql_column_name) {
uchar encoded_mysql_column_name_multibyte[MRN_MAX_KEY_SIZE];
const uchar *mysql_column_name_multibyte =
reinterpret_cast<const uchar *>(mysql_column_name_);
encode(encoded_mysql_column_name_multibyte,
encoded_mysql_column_name_multibyte + MRN_MAX_KEY_SIZE,
mysql_column_name_multibyte,
mysql_column_name_multibyte + strlen(mysql_column_name_));
snprintf(name_, MRN_MAX_KEY_SIZE,
"%s-%s", table_name_, encoded_mysql_column_name_multibyte);
length_ = strlen(name_);
if (length_ < MRN_MIN_INDEX_COLUMN_NAME_LENGTH) {
memset(name_ + length_, '-', MRN_MIN_INDEX_COLUMN_NAME_LENGTH - length_);
length_ = MRN_MIN_INDEX_COLUMN_NAME_LENGTH;
name_[length_] = '\0';
}
}
const char *IndexColumnName::c_str() {
return name_;
}
size_t IndexColumnName::length() {
return length_;
}
uint IndexColumnName::encode(uchar *encoded_start,
uchar *encoded_end,
const uchar *mysql_string_start,
const uchar *mysql_string_end) {
MRN_DBUG_ENTER_METHOD();
my_charset_conv_mb_wc mb_wc = system_charset_info->cset->mb_wc;
my_charset_conv_wc_mb wc_mb = my_charset_filename.cset->wc_mb;
DBUG_PRINT("info", ("mroonga: in=%s", mysql_string_start));
encoded_end--;
uchar *encoded = encoded_start;
const uchar *mysql_string = mysql_string_start;
while (mysql_string < mysql_string_end && encoded < encoded_end) {
my_wc_t wc;
int mb_wc_converted_length;
int wc_mb_converted_length;
mb_wc_converted_length =
(*mb_wc)(NULL, &wc, mysql_string, mysql_string_end);
if (mb_wc_converted_length > 0) {
wc_mb_converted_length = (*wc_mb)(NULL, wc, encoded, encoded_end);
if (wc_mb_converted_length <= 0) {
break;
}
} else if (mb_wc_converted_length == MY_CS_ILSEQ) {
*encoded = *mysql_string;
mb_wc_converted_length = 1;
wc_mb_converted_length = 1;
} else {
break;
}
mysql_string += mb_wc_converted_length;
encoded += wc_mb_converted_length;
}
*encoded = '\0';
DBUG_PRINT("info", ("mroonga: out=%s", encoded_start));
DBUG_RETURN(encoded - encoded_start);
}
}
|
