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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
Copyright 2007 - 2008 MySQL AB, 2008 - 2010 Sun Microsystems, Inc. All rights reserved.
The MySQL Connector/C++ is licensed under the terms of the GPL
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
MySQL Connectors. There are special exceptions to the terms and
conditions of the GPL as it is applied to this software, see the
FLOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
*/
#include <cppconn/exception.h>
#include "mysql_util.h"
#include "mysql_debug.h"
#include "mysql_resultbind.h"
#include "nativeapi/native_statement_wrapper.h"
#include "nativeapi/native_resultset_wrapper.h"
#include <string.h>
namespace sql
{
namespace mysql
{
struct st_buffer_size_type
{
char * buffer;
size_t size;
enum_field_types type;
st_buffer_size_type(char * b, size_t s, enum_field_types t) : buffer(b), size(s), type(t) {}
};
/* {{{ allocate_buffer_for_field() -I- */
typedef std::pair<char *, size_t> BufferSizePair;
static struct st_buffer_size_type
allocate_buffer_for_field(const MYSQL_FIELD * const field)
{
switch (field->type) {
case MYSQL_TYPE_NULL:
return st_buffer_size_type(NULL, 0, field->type);
case MYSQL_TYPE_TINY:
return st_buffer_size_type(new char[1], 1, field->type);
case MYSQL_TYPE_SHORT:
return st_buffer_size_type(new char[2], 2, field->type);
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_FLOAT:
return st_buffer_size_type(new char[4], 4, field->type);
case MYSQL_TYPE_DOUBLE:
case MYSQL_TYPE_LONGLONG:
return st_buffer_size_type(new char[8], 8, field->type);
case MYSQL_TYPE_YEAR:
return st_buffer_size_type(new char[2], 2, MYSQL_TYPE_SHORT);
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_TIME:
case MYSQL_TYPE_DATETIME:
return st_buffer_size_type(new char[sizeof(MYSQL_TIME)], sizeof(MYSQL_TIME), field->type);
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_VAR_STRING:
return st_buffer_size_type(new char[field->max_length + 1], field->max_length + 1, field->type);
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_NEWDECIMAL:
return st_buffer_size_type(new char[64], 64, field->type);
#if A1
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_YEAR:
return st_buffer_size_type(new char[10], 10, field->type);
#endif
#if A0
// There two are not sent over the wire
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
#endif
case MYSQL_TYPE_BIT:
return st_buffer_size_type(new char[8], 8, MYSQL_TYPE_BIT);
case MYSQL_TYPE_GEOMETRY:
default:
// TODO: Andrey, there can be crashes when we go through this. Please fix.
throw sql::InvalidArgumentException("allocate_buffer_for_field: invalid rbind data type");
}
}
/* }}} */
/* {{{ MySQL_ResultBind::MySQL_ResultBind -I- */
MySQL_ResultBind::MySQL_ResultBind(boost::shared_ptr< NativeAPI::NativeStatementWrapper > & stmt,
boost::shared_ptr< MySQL_DebugLogger > & log)
: num_fields(0), is_null(NULL), err(NULL), len(NULL), proxy(stmt), logger(log), rbind(NULL)
{
}
/* }}} */
/* {{{ MySQL_ResultBind::~MySQL_ResultBind() -I- */
MySQL_ResultBind::~MySQL_ResultBind()
{
if (rbind.get()) {
for (unsigned int i = 0; i < num_fields; ++i) {
delete[] (char *) rbind[i].buffer;
}
}
}
/* }}} */
/* {{{ MySQL_ResultBind::bindResult() -I- */
void MySQL_ResultBind::bindResult()
{
CPP_ENTER("MySQL_Prepared_Statement::bindResult");
for (unsigned int i = 0; i < num_fields; ++i) {
delete[] (char *) rbind[i].buffer;
}
rbind.reset(NULL);
is_null.reset(NULL);
err.reset(NULL);
len.reset(NULL);
num_fields = proxy->field_count();
if (!num_fields) {
return;
}
rbind.reset(new MYSQL_BIND[num_fields]);
memset(rbind.get(), 0, sizeof(MYSQL_BIND) * num_fields);
is_null.reset(new my_bool[num_fields]);
memset(is_null.get(), 0, sizeof(my_bool) * num_fields);
err.reset(new my_bool[num_fields]);
memset(err.get(), 0, sizeof(my_bool) * num_fields);
len.reset(new unsigned long[num_fields]);
memset(len.get(), 0, sizeof(unsigned long) * num_fields);
std::auto_ptr< NativeAPI::NativeResultsetWrapper > resultMeta(proxy->result_metadata());
for (unsigned int i = 0; i < num_fields; ++i) {
MYSQL_FIELD * field = resultMeta->fetch_field();
struct st_buffer_size_type p = allocate_buffer_for_field(field);
rbind[i].buffer_type= p.type;
rbind[i].buffer = p.buffer;
rbind[i].buffer_length= static_cast<unsigned long>(p.size);
rbind[i].length = &len[i];
rbind[i].is_null = &is_null[i];
rbind[i].error = &err[i];
rbind[i].is_unsigned= field->flags & UNSIGNED_FLAG;
}
if (proxy->bind_result(rbind.get())) {
CPP_ERR_FMT("Couldn't bind : %d:(%s) %s", proxy->errNo(), proxy->sqlstate().c_str(), proxy->error().c_str());
sql::mysql::util::throwSQLException(*proxy.get());
}
}
/* }}} */
} /* namespace mysql */
} /* namespace sql */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|
