/usr/include/ncbi-vdb/rdbms/rdbms.h is in libncbi-vdb-dev 2.8.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #ifndef _h_rdbms_rdbms_
#define _h_rdbms_rdbms_
#ifndef _h_klib_text_
#include <klib/text.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* logdberr
* like logerr, but interprets error code as a db error code
*/
void logdberr ( int err, const char *fmt, ... );
/* strdberror
* a version of strerror that operates within db error code space
* returned string is owned by library
*/
const char *strdberror ( int dberr );
/* strdberror_r
* a version of strerror_r that operates within db error code space
* returns 0 on success, EINVAL if "dberr" is invalid, and
* ERANGE if insufficient space was provided to copy the data.
*/
int strdberror_r ( int dberr, char *buf, size_t n );
/*--------------------------------------------------------------------------
* DBColumnType
* for discovering column type at runtime
*/
enum
{
colUnsupported,
colBool,
colI8,
colU8,
colI16,
colU16,
colI32,
colU32,
colI64,
colU64,
colF32,
colF64,
colText,
colBlob
};
/*--------------------------------------------------------------------------
* DBRow
*/
typedef struct DBBlob DBBlob;
struct DBBlob
{
/* the blob is in here */
void *addr;
size_t size;
/* when finished with the blob, whack it thus */
void *priv;
void ( * whack ) ( void *priv );
};
/* DBBlobWhack
*/
#define DBBlobWhack( blob ) \
( ( blob ) -> priv != NULL ? \
( * ( blob ) -> whack ) ( ( blob ) -> priv ) : ( void ) 0 )
typedef struct DBRow DBRow;
typedef struct DBRow_vt DBRow_vt;
struct DBRow_vt
{
rc_t ( * whack ) ( DBRow *self );
rc_t ( * numColumns ) ( const DBRow *self, unsigned int *num_cols );
rc_t ( * colInfo ) ( const DBRow *self, unsigned int idx,
int *col_type, const String **name );
rc_t ( * colIdx ) ( const DBRow *self, const String *name,
unsigned int *idx );
bool ( * isNull ) ( const DBRow *self, unsigned int idx );
rc_t ( * getAsNum ) ( const DBRow *self, unsigned int idx, int64_t *i, double *d, bool *is_floating );
rc_t ( * getAsString ) ( const DBRow *self, unsigned int idx,
const String **value );
rc_t ( * getAsBlob ) ( const DBRow *self, unsigned int idx,
const void **value, size_t *bytes );
rc_t ( * stealBlob ) ( DBRow *self, unsigned int idx, DBBlob *blob );
};
struct DBRow
{
const DBRow_vt *vt;
};
/* DBRowNumColumns
* read the number of columns in row
*/
#define DBRowNumColumns( row, num_cols ) \
( * ( row ) -> vt -> numColumns ) ( row, num_cols )
/* DBRowColumnInfo
* read the type for indexed column as DBColumnType
* index is zero-based
* optionally reads column name if "name" is not NULL
*/
#define DBRowColumnInfo( row, idx, col_type, name ) \
( * ( row ) -> vt -> colInfo ) ( row, idx, col_type, name )
/* DBRowColumnIdx
* determine zero-based index for named column
*/
#define DBRowColumnIdx( row, name, idx ) \
( * ( row ) -> vt -> colIdx ) ( row, name, idx )
/* DBRowIsNull
* determine whether an indexed column value is NULL
* index is zero-based
* returns true only if row and column are valid,
* and column is NULL, obviously
*/
#define DBRowIsNull( row, idx ) \
( * ( row ) -> vt -> isNull ) ( row, idx )
/* DBRowGetAs...
* column access functions
* all indices are zero-based
*/
rc_t DBRowGetAsBool ( const DBRow *row, unsigned int idx, bool *value );
rc_t DBRowGetAsI8 ( const DBRow *row, unsigned int idx, int8_t *value );
rc_t DBRowGetAsU8 ( const DBRow *row, unsigned int idx, uint8_t *value );
rc_t DBRowGetAsI16 ( const DBRow *row, unsigned int idx, int16_t *value );
rc_t DBRowGetAsU16 ( const DBRow *row, unsigned int idx, uint16_t *value );
rc_t DBRowGetAsI32 ( const DBRow *row, unsigned int idx, int32_t *value );
rc_t DBRowGetAsU32 ( const DBRow *row, unsigned int idx, uint32_t *value );
rc_t DBRowGetAsI64 ( const DBRow *row, unsigned int idx, int64_t *value );
rc_t DBRowGetAsU64 ( const DBRow *row, unsigned int idx, uint64_t *value );
rc_t DBRowGetAsF32 ( const DBRow *row, unsigned int idx, float *value );
rc_t DBRowGetAsF64 ( const DBRow *row, unsigned int idx, double *value );
#define DBRowGetAsString( row, idx, value ) \
( * ( row ) -> vt -> getAsString ) ( row, idx, value )
/* DBRowGetAsBlob
* special access that returns direct pointer to internal data
* only guaranteed to live while row exists
* ( here's where reference counting saves the day... )
*/
#define DBRowGetAsBlob( row, idx, value, bytes ) \
( * ( row ) -> vt -> getAsBlob ) ( row, idx, value, bytes )
/* DBRowStealBlob
* even more special access that steals internal data from row
* or at least returns an allocation that is no longer associated
* with the column.
*
* intended to invalidate the column and cause it to be NULL,
* but this is implementation dependent.
*/
#define DBRowStealBlob( row, idx, blob ) \
( * ( row ) -> vt -> stealBlob ) ( row, idx, blob )
/* DBRowWhack
* whacks the row
*/
#define DBRowWhack( row ) \
( ( row ) == NULL ? 0 : ( * ( row ) -> vt -> whack ) ( row ) )
/*--------------------------------------------------------------------------
* DBResultSet
*/
typedef struct DBResultSet DBResultSet;
typedef struct DBResultSet_vt DBResultSet_vt;
struct DBResultSet_vt
{
rc_t ( * whack ) ( DBResultSet *self );
rc_t ( * numColumns ) ( const DBResultSet *self, unsigned int *num_cols );
rc_t ( * colInfo ) ( const DBResultSet *self, unsigned int idx,
int *col_type, const String **name );
rc_t ( * colIdx ) ( const DBResultSet *self, const String *name,
unsigned int *idx );
rc_t ( * getStatus ) ( const DBResultSet *self, int32_t *status );
rc_t ( * nextRow ) ( DBResultSet *self, DBRow **row );
};
struct DBResultSet
{
const DBResultSet_vt *vt;
};
/* DBResultSetNumColumns
* read the number of columns in result
*/
#define DBResultSetNumColumns( rs, num_cols ) \
( * ( rs ) -> vt -> numColumns ) ( rs, num_cols )
/* DBResultSetColumnInfo
* read the type for indexed column as DBColumnType
* index is zero-based
* optionally reads column name if "name" is not NULL
*/
#define DBResultSetColumnInfo( rs, idx, col_type, name ) \
( * ( rs ) -> vt -> colInfo ) ( rs, idx, col_type, name )
/* DBResultSetColumnIdx
* determine zero-based index for named column
*/
#define DBResultSetColumnIdx( rs, name, idx ) \
( * ( rs ) -> vt -> colIdx ) ( rs, name, idx )
/* DBResultSetGetStatus
*/
#define DBResultSetGetStatus( rs, status ) \
( * ( rs ) -> vt -> getStatus ) ( rs, status )
/* DBResultSetNextRow
* returns dbNoErr if row was created
* returns dbEndData if no more rows were available
* returns something more sinister if an error occurred
*/
#define DBResultSetNextRow( rs, row ) \
( * ( rs ) -> vt -> nextRow ) ( rs, row )
/* DBResultSetForEach
* iterates across all rows
*/
rc_t DBResultSetForEach ( DBResultSet *rs,
void ( * f ) ( DBRow *row, void *data ), void * data );
/* DBResultSetDoUntil
* iterates across all rows
* until the function returns true
*/
rc_t DBResultSetDoUntil ( DBResultSet *rs,
bool ( * f ) ( DBRow *row, void *data ), void * data );
/* DBResultSetWhack
* whacks the result set
*/
#define DBResultSetWhack( rs ) \
( ( rs ) == NULL ? 0 : ( * ( rs ) -> vt -> whack ) ( rs ) )
/*--------------------------------------------------------------------------
* Database
*/
typedef struct Database Database;
typedef struct Database_vt Database_vt;
struct Database_vt
{
rc_t ( * whack ) ( Database *self );
rc_t ( * setReturnSize ) ( Database *self, size_t max_size );
rc_t ( * execute ) ( Database *self, DBResultSet **rs, char *sql );
};
struct Database
{
const Database_vt *vt;
};
/* DatabaseSetReturnSize
* sets maximum size for returns
*/
#define DatabaseSetReturnSize( db, max_size ) \
( * ( db ) -> vt -> setReturnSize ) ( db, max_size )
/* DatabaseExecute
* issue an sql request
*/
rc_t DatabaseExecute ( Database *db, DBResultSet **rs, const char *sql, ... );
/* DatabaseGetStatus
* executes a stored procedure and returns status code
*/
rc_t DatabaseGetStatus ( Database *db, int32_t *status, const char *sql, ... );
/* DatabaseGetAs...
* column access functions on first row of a query
* all indices are zero-based
*/
rc_t DatabaseGetAsBool ( Database *db, unsigned int idx,
bool *value, const char *sql, ... );
rc_t DatabaseGetAsI8 ( Database *db, unsigned int idx,
int8_t *value, const char *sql, ... );
rc_t DatabaseGetAsU8 ( Database *db, unsigned int idx,
uint8_t *value, const char *sql, ... );
rc_t DatabaseGetAsI16 ( Database *db, unsigned int idx,
int16_t *value, const char *sql, ... );
rc_t DatabaseGetAsU16 ( Database *db, unsigned int idx,
uint16_t *value, const char *sql, ... );
rc_t DatabaseGetAsI32 ( Database *db, unsigned int idx,
int32_t *value, const char *sql, ... );
rc_t DatabaseGetAsU32 ( Database *db, unsigned int idx,
uint32_t *value, const char *sql, ... );
rc_t DatabaseGetAsI64 ( Database *db, unsigned int idx,
int64_t *value, const char *sql, ... );
rc_t DatabaseGetAsU64 ( Database *db, unsigned int idx,
uint64_t *value, const char *sql, ... );
rc_t DatabaseGetAsF32 ( Database *db, unsigned int idx,
float *value, const char *sql, ... );
rc_t DatabaseGetAsF64 ( Database *db, unsigned int idx,
double *value, const char *sql, ... );
rc_t DatabaseGetAsString ( Database *db, unsigned int idx,
const String **value, const char *sql, ... );
/* DatabaseWhack
* tear down a connection
*/
#define DatabaseWhack( db ) \
( ( db ) == NULL ? 0 : ( * ( db ) -> vt -> whack ) ( db ) )
/*--------------------------------------------------------------------------
* DBManager
* something such as Sybase, ORACLE, etc.
*/
typedef struct DBManager DBManager;
struct DBManager
{
rc_t ( * whack ) ( DBManager *self );
rc_t ( * connect ) ( const DBManager *self, const char *server,
const char *dbname, const char *user, const char *pass, Database **db );
};
/* DBManagerInit
* initialize object reference
* returns 0 if manager has been registered
*/
rc_t DBManagerInit ( const DBManager **mgr, const char *name );
/* DBManagerRegister
* makes an object known to DBManager
*/
rc_t DBManagerRegister ( const DBManager *mgr, const char *name );
/* DBManagerUnregister
* makes an object unknown to DBManager
*/
rc_t DBManagerUnregister ( const DBManager *mgr, const char *name );
/* DBManagerConnect
* establish a connection
*/
#define DBManagerConnect( mgr, server, dbname, user, pass, db ) \
( * ( mgr ) -> connect ) ( mgr, server, dbname, user, pass, db )
/* DBManagerWhack
*/
#define DBManagerWhack( mgr ) \
( ( mgr ) == NULL ? 0 : ( * ( mgr ) -> whack ) ( mgr ) )
rc_t DBManagerRelease(const DBManager *mgr);
#ifdef __cplusplus
}
#endif
#endif /* _h_rdbms_rdbms_ */
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