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
181
182
183
184
|
/* Copyright (C) 2002-2006 MySQL AB
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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifdef USE_PRAGMA_INTERFACE
#pragma interface /* gcc class implementation */
#endif
class i_string;
class THD;
typedef struct st_mysql_field MYSQL_FIELD;
typedef struct st_mysql_rows MYSQL_ROWS;
class Protocol
{
protected:
THD *thd;
String *packet;
String *convert;
uint field_pos;
#ifndef DBUG_OFF
enum enum_field_types *field_types;
#endif
uint field_count;
#ifndef EMBEDDED_LIBRARY
bool net_store_data(const uchar *from, size_t length);
#else
virtual bool net_store_data(const uchar *from, size_t length);
char **next_field;
MYSQL_FIELD *next_mysql_field;
MEM_ROOT *alloc;
#endif
bool store_string_aux(const char *from, size_t length,
CHARSET_INFO *fromcs, CHARSET_INFO *tocs);
public:
Protocol() {}
Protocol(THD *thd_arg) { init(thd_arg); }
virtual ~Protocol() {}
void init(THD* thd_arg);
enum { SEND_NUM_ROWS= 1, SEND_DEFAULTS= 2, SEND_EOF= 4 };
virtual bool send_fields(List<Item> *list, uint flags);
bool store(I_List<i_string> *str_list);
bool store(const char *from, CHARSET_INFO *cs);
String *storage_packet() { return packet; }
inline void free() { packet->free(); }
virtual bool write();
inline bool store(int from)
{ return store_long((longlong) from); }
inline bool store(uint32 from)
{ return store_long((longlong) from); }
inline bool store(longlong from)
{ return store_longlong((longlong) from, 0); }
inline bool store(ulonglong from)
{ return store_longlong((longlong) from, 1); }
inline bool store(String *str)
{ return store((char*) str->ptr(), str->length(), str->charset()); }
virtual bool prepare_for_send(List<Item> *item_list)
{
field_count=item_list->elements;
return 0;
}
virtual bool flush();
virtual void prepare_for_resend()=0;
virtual bool store_null()=0;
virtual bool store_tiny(longlong from)=0;
virtual bool store_short(longlong from)=0;
virtual bool store_long(longlong from)=0;
virtual bool store_longlong(longlong from, bool unsigned_flag)=0;
virtual bool store_decimal(const my_decimal *)=0;
virtual bool store(const char *from, size_t length, CHARSET_INFO *cs)=0;
virtual bool store(const char *from, size_t length,
CHARSET_INFO *fromcs, CHARSET_INFO *tocs)=0;
virtual bool store(float from, uint32 decimals, String *buffer)=0;
virtual bool store(double from, uint32 decimals, String *buffer)=0;
virtual bool store(MYSQL_TIME *time)=0;
virtual bool store_date(MYSQL_TIME *time)=0;
virtual bool store_time(MYSQL_TIME *time)=0;
virtual bool store(Field *field)=0;
#ifdef EMBEDDED_LIBRARY
int begin_dataset();
virtual void remove_last_row() {}
#else
void remove_last_row() {}
#endif
enum enum_protocol_type
{
PROTOCOL_TEXT= 0, PROTOCOL_BINARY= 1
/*
before adding here or change the values, consider that it is cast to a
bit in sql_cache.cc.
*/
};
virtual enum enum_protocol_type type()= 0;
};
/* Class used for the old (MySQL 4.0 protocol) */
class Protocol_text :public Protocol
{
public:
Protocol_text() {}
Protocol_text(THD *thd_arg) :Protocol(thd_arg) {}
virtual void prepare_for_resend();
virtual bool store_null();
virtual bool store_tiny(longlong from);
virtual bool store_short(longlong from);
virtual bool store_long(longlong from);
virtual bool store_longlong(longlong from, bool unsigned_flag);
virtual bool store_decimal(const my_decimal *);
virtual bool store(const char *from, size_t length, CHARSET_INFO *cs);
virtual bool store(const char *from, size_t length,
CHARSET_INFO *fromcs, CHARSET_INFO *tocs);
virtual bool store(MYSQL_TIME *time);
virtual bool store_date(MYSQL_TIME *time);
virtual bool store_time(MYSQL_TIME *time);
virtual bool store(float nr, uint32 decimals, String *buffer);
virtual bool store(double from, uint32 decimals, String *buffer);
virtual bool store(Field *field);
#ifdef EMBEDDED_LIBRARY
void remove_last_row();
#endif
virtual enum enum_protocol_type type() { return PROTOCOL_TEXT; };
};
class Protocol_binary :public Protocol
{
private:
uint bit_fields;
public:
Protocol_binary() {}
Protocol_binary(THD *thd_arg) :Protocol(thd_arg) {}
virtual bool prepare_for_send(List<Item> *item_list);
virtual void prepare_for_resend();
#ifdef EMBEDDED_LIBRARY
virtual bool write();
bool net_store_data(const uchar *from, size_t length);
#endif
virtual bool store_null();
virtual bool store_tiny(longlong from);
virtual bool store_short(longlong from);
virtual bool store_long(longlong from);
virtual bool store_longlong(longlong from, bool unsigned_flag);
virtual bool store_decimal(const my_decimal *);
virtual bool store(const char *from, size_t length, CHARSET_INFO *cs);
virtual bool store(const char *from, size_t length,
CHARSET_INFO *fromcs, CHARSET_INFO *tocs);
virtual bool store(MYSQL_TIME *time);
virtual bool store_date(MYSQL_TIME *time);
virtual bool store_time(MYSQL_TIME *time);
virtual bool store(float nr, uint32 decimals, String *buffer);
virtual bool store(double from, uint32 decimals, String *buffer);
virtual bool store(Field *field);
virtual enum enum_protocol_type type() { return PROTOCOL_BINARY; };
};
void send_warning(THD *thd, uint sql_errno, const char *err=0);
void net_printf_error(THD *thd, uint sql_errno, ...);
void net_send_error(THD *thd, uint sql_errno=0, const char *err=0);
void send_ok(THD *thd, ha_rows affected_rows=0L, ulonglong id=0L,
const char *info=0);
void send_eof(THD *thd);
bool send_old_password_request(THD *thd);
uchar *net_store_data(uchar *to,const uchar *from, size_t length);
uchar *net_store_data(uchar *to,int32 from);
uchar *net_store_data(uchar *to,longlong from);
|
