summaryrefslogtreecommitdiff
path: root/include/mysql.h
blob: 5bcdca636c0c5be741b765d499aca926ed685bf2 (plain)
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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
/* Copyright (C) 2000 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; either version 2 of the License, or
   (at your option) any later version.

   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 */

#ifndef _mysql_h
#define _mysql_h

#ifdef __CYGWIN__     /* CYGWIN implements a UNIX API */
#undef WIN
#undef _WIN
#undef _WIN32
#undef _WIN64
#undef __WIN__
#endif

#ifdef	__cplusplus
extern "C" {
#endif

#ifndef _global_h				/* If not standard header */
#include <sys/types.h>
#ifdef __LCC__
#include <winsock.h>				/* For windows */
#endif
typedef char my_bool;
#if (defined(_WIN32) || defined(_WIN64)) && !defined(__WIN__)
#define __WIN__
#endif
#if !defined(__WIN__)
#define STDCALL
#else
#define STDCALL __stdcall
#endif
typedef char * gptr;

#ifndef my_socket_defined
#ifdef __WIN__
#define my_socket SOCKET
#else
typedef int my_socket;
#endif /* __WIN__ */
#endif /* my_socket_defined */
#endif /* _global_h */

#include "mysql_com.h"
#include "mysql_version.h"

extern unsigned int mysql_port;
extern char *mysql_unix_port;

#define IS_PRI_KEY(n)	((n) & PRI_KEY_FLAG)
#define IS_NOT_NULL(n)	((n) & NOT_NULL_FLAG)
#define IS_BLOB(n)	((n) & BLOB_FLAG)
#define IS_NUM(t)	((t) <= FIELD_TYPE_INT24 || (t) == FIELD_TYPE_YEAR)
#define IS_NUM_FIELD(f)	 ((f)->flags & NUM_FLAG)
#define INTERNAL_NUM_FIELD(f) (((f)->type <= FIELD_TYPE_INT24 && ((f)->type != FIELD_TYPE_TIMESTAMP || (f)->length == 14 || (f)->length == 8)) || (f)->type == FIELD_TYPE_YEAR)

typedef struct st_mysql_field {
  char *name;			/* Name of column */
  char *table;			/* Table of column if column was a field */
  char *org_table;		/* Org table name if table was an alias */
  char *db;			/* Database for table */
  char *def;			/* Default value (set by mysql_list_fields) */
  unsigned long length;		/* Width of column */
  unsigned long max_length;	/* Max width of selected set */
  unsigned int flags;		/* Div flags */
  unsigned int decimals;	/* Number of decimals in field */
  enum enum_field_types type;	/* Type of field. Se mysql_com.h for types */
} MYSQL_FIELD;

typedef char **MYSQL_ROW;		/* return data as array of strings */
typedef unsigned int MYSQL_FIELD_OFFSET; /* offset to current field */

#if defined(NO_CLIENT_LONG_LONG)
typedef unsigned long my_ulonglong;
#elif defined (__WIN__)
typedef unsigned __int64 my_ulonglong;
#else
typedef unsigned long long my_ulonglong;
#endif

#define MYSQL_COUNT_ERROR (~(my_ulonglong) 0)

typedef struct st_mysql_rows {
  struct st_mysql_rows *next;		/* list of rows */
  MYSQL_ROW data;
} MYSQL_ROWS;

typedef MYSQL_ROWS *MYSQL_ROW_OFFSET;	/* offset to current row */

#include <my_alloc.h>

typedef struct st_mysql_data {
  my_ulonglong rows;
  unsigned int fields;
  MYSQL_ROWS *data;
  MEM_ROOT alloc;
} MYSQL_DATA;

struct st_mysql_options {
  unsigned int connect_timeout,client_flag;
  unsigned int port;
  char *host,*init_command,*user,*password,*unix_socket,*db;
  char *my_cnf_file,*my_cnf_group, *charset_dir, *charset_name;
  char *ssl_key;				/* PEM key file */
  char *ssl_cert;				/* PEM cert file */
  char *ssl_ca;					/* PEM CA file */
  char *ssl_capath;				/* PEM directory of CA-s? */
  char *ssl_cipher;				/* cipher to use */
  my_bool use_ssl;				/* if to use SSL or not */
  my_bool compress,named_pipe;
 /*
   on connect, find out the replication role of the server, and
   establish connections to all the peers
 */
  my_bool rpl_probe;
 /* 
    each call to mysql_real_query() will parse it to tell if it is a read
    or a write, and direct it to the slave or the master
 */
  my_bool rpl_parse;
 /*
   if set, never read from a master,only from slave, when doing
   a read that is replication-aware
 */
  my_bool no_master_reads;
};

enum mysql_option { MYSQL_OPT_CONNECT_TIMEOUT, MYSQL_OPT_COMPRESS,
		    MYSQL_OPT_NAMED_PIPE, MYSQL_INIT_COMMAND,
		    MYSQL_READ_DEFAULT_FILE, MYSQL_READ_DEFAULT_GROUP,
		    MYSQL_SET_CHARSET_DIR, MYSQL_SET_CHARSET_NAME,
		    MYSQL_OPT_LOCAL_INFILE};

enum mysql_status { MYSQL_STATUS_READY,MYSQL_STATUS_GET_RESULT,
		    MYSQL_STATUS_USE_RESULT};

/*
  There are three types of queries - the ones that have to go to
  the master, the ones that go to a slave, and the adminstrative
  type which must happen on the pivot connectioin
*/
enum mysql_rpl_type { MYSQL_RPL_MASTER, MYSQL_RPL_SLAVE,
		      MYSQL_RPL_ADMIN };


typedef struct st_mysql {
  NET		net;			/* Communication parameters */
  gptr		connector_fd;		/* ConnectorFd for SSL */
  char		*host,*user,*passwd,*unix_socket,*server_version,*host_info,
		*info,*db;
  struct charset_info_st *charset;
  MYSQL_FIELD	*fields;
  MEM_ROOT	field_alloc;
  my_ulonglong affected_rows;
  my_ulonglong insert_id;		/* id if insert on table with NEXTNR */
  my_ulonglong extra_info;		/* Used by mysqlshow */
  unsigned long thread_id;		/* Id for connection in server */
  unsigned long packet_length;
  unsigned int	port,client_flag,server_capabilities;
  unsigned int	protocol_version;
  unsigned int	field_count;
  unsigned int 	server_status;
  unsigned int  server_language;
  struct st_mysql_options options;
  enum mysql_status status;
  my_bool	free_me;		/* If free in mysql_close */
  my_bool	reconnect;		/* set to 1 if automatic reconnect */
  char	        scramble_buff[9];

 /*
   Set if this is the original connection, not a master or a slave we have
   added though mysql_rpl_probe() or mysql_set_master()/ mysql_add_slave()
 */
  my_bool rpl_pivot;
  /* pointers to the master, and the next slave
    connections, points to itself if lone connection  */
  struct st_mysql* master, *next_slave;

  struct st_mysql* last_used_slave; /* needed for round-robin slave pick */
 /* needed for send/read/store/use result to work correctly with replication */
  struct st_mysql* last_used_con;
} MYSQL;


typedef struct st_mysql_res {
  my_ulonglong row_count;
  MYSQL_FIELD	*fields;
  MYSQL_DATA	*data;
  MYSQL_ROWS	*data_cursor;
  unsigned long *lengths;		/* column lengths of current row */
  MYSQL		*handle;		/* for unbuffered reads */
  MEM_ROOT	field_alloc;
  unsigned int	field_count, current_field;
  MYSQL_ROW	row;			/* If unbuffered read */
  MYSQL_ROW	current_row;		/* buffer to current row */
  my_bool	eof;			/* Used by mysql_fetch_row */
} MYSQL_RES;

#define MAX_MYSQL_MANAGER_ERR 256  
#define MAX_MYSQL_MANAGER_MSG 256

#define MANAGER_OK           200
#define MANAGER_INFO         250
#define MANAGER_ACCESS       401
#define MANAGER_CLIENT_ERR   450
#define MANAGER_INTERNAL_ERR 500



typedef struct st_mysql_manager
{
  NET net;
  char *host,*user,*passwd;
  unsigned int port;
  my_bool free_me;
  my_bool eof;
  int cmd_status;
  int last_errno;
  char* net_buf,*net_buf_pos,*net_data_end;
  int net_buf_size;
  char last_error[MAX_MYSQL_MANAGER_ERR];
} MYSQL_MANAGER;

/* Set up and bring down the server; to ensure that applications will
 * work when linked against either the standard client library or the
 * embedded server library, these functions should be called. */
int STDCALL mysql_server_init(int argc, char **argv, char **groups);
void STDCALL mysql_server_end(void);

/* Set up and bring down a thread; these function should be called
 * for each thread in an application which opens at least one MySQL
 * connection.  All uses of the connection(s) should be between these
 * function calls. */
my_bool STDCALL mysql_thread_init(void);
void STDCALL mysql_thread_end(void);

/* Functions to get information from the MYSQL and MYSQL_RES structures */
/* Should definitely be used if one uses shared libraries */

my_ulonglong STDCALL mysql_num_rows(MYSQL_RES *res);
unsigned int STDCALL mysql_num_fields(MYSQL_RES *res);
my_bool STDCALL mysql_eof(MYSQL_RES *res);
MYSQL_FIELD *STDCALL mysql_fetch_field_direct(MYSQL_RES *res,
					      unsigned int fieldnr);
MYSQL_FIELD * STDCALL mysql_fetch_fields(MYSQL_RES *res);
MYSQL_ROW_OFFSET STDCALL mysql_row_tell(MYSQL_RES *res);
MYSQL_FIELD_OFFSET STDCALL mysql_field_tell(MYSQL_RES *res);

unsigned int STDCALL mysql_field_count(MYSQL *mysql);
my_ulonglong STDCALL mysql_affected_rows(MYSQL *mysql);
my_ulonglong STDCALL mysql_insert_id(MYSQL *mysql);
unsigned int STDCALL mysql_errno(MYSQL *mysql);
const char * STDCALL mysql_error(MYSQL *mysql);
const char * STDCALL mysql_info(MYSQL *mysql);
unsigned long STDCALL mysql_thread_id(MYSQL *mysql);
const char * STDCALL mysql_character_set_name(MYSQL *mysql);

MYSQL *		STDCALL mysql_init(MYSQL *mysql);
int		STDCALL mysql_ssl_set(MYSQL *mysql, const char *key,
				      const char *cert, const char *ca,
				      const char *capath, const char *cipher);
int		STDCALL mysql_ssl_clear(MYSQL *mysql);
my_bool		STDCALL mysql_change_user(MYSQL *mysql, const char *user, 
					  const char *passwd, const char *db);
MYSQL *		STDCALL mysql_real_connect(MYSQL *mysql, const char *host,
					   const char *user,
					   const char *passwd,
					   const char *db,
					   unsigned int port,
					   const char *unix_socket,
					   unsigned int clientflag);
void		STDCALL mysql_close(MYSQL *sock);
int		STDCALL mysql_select_db(MYSQL *mysql, const char *db);
int		STDCALL mysql_query(MYSQL *mysql, const char *q);
int		STDCALL mysql_send_query(MYSQL *mysql, const char *q,
					 unsigned long length);
int		STDCALL mysql_read_query_result(MYSQL *mysql);
int		STDCALL mysql_real_query(MYSQL *mysql, const char *q,
					unsigned long length);
/* perform query on master */
int		STDCALL mysql_master_query(MYSQL *mysql, const char *q,
					unsigned long length);
int		STDCALL mysql_master_send_query(MYSQL *mysql, const char *q,
					unsigned long length);
/* perform query on slave */  
int		STDCALL mysql_slave_query(MYSQL *mysql, const char *q,
					unsigned long length);
int		STDCALL mysql_slave_send_query(MYSQL *mysql, const char *q,
					unsigned long length);

/*
  enable/disable parsing of all queries to decide if they go on master or
  slave
*/
void            STDCALL mysql_enable_rpl_parse(MYSQL* mysql);
void            STDCALL mysql_disable_rpl_parse(MYSQL* mysql);
/* get the value of the parse flag */  
int             STDCALL mysql_rpl_parse_enabled(MYSQL* mysql);

/*  enable/disable reads from master */
void            STDCALL mysql_enable_reads_from_master(MYSQL* mysql);
void            STDCALL mysql_disable_reads_from_master(MYSQL* mysql);
/* get the value of the master read flag */  
int             STDCALL mysql_reads_from_master_enabled(MYSQL* mysql);

enum mysql_rpl_type     STDCALL mysql_rpl_query_type(const char* q, int len);  

/* discover the master and its slaves */  
int             STDCALL mysql_rpl_probe(MYSQL* mysql);

/* set the master, close/free the old one, if it is not a pivot */
int             STDCALL mysql_set_master(MYSQL* mysql, const char* host,
					 unsigned int port,
					 const char* user,
					 const char* passwd);
int             STDCALL mysql_add_slave(MYSQL* mysql, const char* host,
					unsigned int port,
					const char* user,
					const char* passwd);

int		STDCALL mysql_shutdown(MYSQL *mysql);
int		STDCALL mysql_dump_debug_info(MYSQL *mysql);
int		STDCALL mysql_refresh(MYSQL *mysql,
				     unsigned int refresh_options);
int		STDCALL mysql_kill(MYSQL *mysql,unsigned long pid);
int		STDCALL mysql_ping(MYSQL *mysql);
const char *		STDCALL mysql_stat(MYSQL *mysql);
const char *		STDCALL mysql_get_server_info(MYSQL *mysql);
const char *		STDCALL mysql_get_client_info(void);
const char *		STDCALL mysql_get_host_info(MYSQL *mysql);
unsigned int	STDCALL mysql_get_proto_info(MYSQL *mysql);
MYSQL_RES *	STDCALL mysql_list_dbs(MYSQL *mysql,const char *wild);
MYSQL_RES *	STDCALL mysql_list_tables(MYSQL *mysql,const char *wild);
MYSQL_RES *	STDCALL mysql_list_fields(MYSQL *mysql, const char *table,
					 const char *wild);
MYSQL_RES *	STDCALL mysql_list_processes(MYSQL *mysql);
MYSQL_RES *	STDCALL mysql_store_result(MYSQL *mysql);
MYSQL_RES *	STDCALL mysql_use_result(MYSQL *mysql);
int		STDCALL mysql_options(MYSQL *mysql,enum mysql_option option,
				      const char *arg);
void		STDCALL mysql_free_result(MYSQL_RES *result);
void		STDCALL mysql_data_seek(MYSQL_RES *result,
					my_ulonglong offset);
MYSQL_ROW_OFFSET STDCALL mysql_row_seek(MYSQL_RES *result,
						MYSQL_ROW_OFFSET offset);
MYSQL_FIELD_OFFSET STDCALL mysql_field_seek(MYSQL_RES *result,
					   MYSQL_FIELD_OFFSET offset);
MYSQL_ROW	STDCALL mysql_fetch_row(MYSQL_RES *result);
unsigned long * STDCALL mysql_fetch_lengths(MYSQL_RES *result);
MYSQL_FIELD *	STDCALL mysql_fetch_field(MYSQL_RES *result);
unsigned long	STDCALL mysql_escape_string(char *to,const char *from,
					    unsigned long from_length);
unsigned long STDCALL mysql_real_escape_string(MYSQL *mysql,
					       char *to,const char *from,
					       unsigned long length);
void		STDCALL mysql_debug(const char *debug);
char *		STDCALL mysql_odbc_escape_string(MYSQL *mysql,
						 char *to,
						 unsigned long to_length,
						 const char *from,
						 unsigned long from_length,
						 void *param,
						 char *
						 (*extend_buffer)
						 (void *, char *to,
						  unsigned long *length));
void 		STDCALL myodbc_remove_escape(MYSQL *mysql,char *name);
unsigned int	STDCALL mysql_thread_safe(void);
MYSQL_MANAGER*  STDCALL mysql_manager_init(MYSQL_MANAGER* con);  
MYSQL_MANAGER*  STDCALL mysql_manager_connect(MYSQL_MANAGER* con,
					      const char* host,
					      const char* user,
					      const char* passwd,
					      unsigned int port);
void            STDCALL mysql_manager_close(MYSQL_MANAGER* con);
int             STDCALL mysql_manager_command(MYSQL_MANAGER* con,
						const char* cmd, int cmd_len);
int             STDCALL mysql_manager_fetch_line(MYSQL_MANAGER* con,
						  char* res_buf,
						 int res_buf_size);
#define mysql_reload(mysql) mysql_refresh((mysql),REFRESH_GRANT)

#ifdef USE_OLD_FUNCTIONS
MYSQL *		STDCALL mysql_connect(MYSQL *mysql, const char *host,
				      const char *user, const char *passwd);
int		STDCALL mysql_create_db(MYSQL *mysql, const char *DB);
int		STDCALL mysql_drop_db(MYSQL *mysql, const char *DB);
#define	 mysql_reload(mysql) mysql_refresh((mysql),REFRESH_GRANT)
#endif
#define HAVE_MYSQL_REAL_CONNECT

/*
  The following functions are mainly exported because of mysqlbinlog;
  They are not for general usage
*/

int simple_command(MYSQL *mysql,enum enum_server_command command,
		   const char *arg, unsigned long length, my_bool skipp_check);
unsigned long net_safe_read(MYSQL* mysql);

#ifdef	__cplusplus
}
#endif

#endif /* _mysql_h */