db-mysql/mysql-api.lisp

   1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
   2 ;;;; *************************************************************************
   3 ;;;; FILE IDENTIFICATION
   4 ;;;;
   5 ;;;; Name:          mysql-api.lisp
   6 ;;;; Purpose:       Low-level MySQL interface using UFFI
   7 ;;;; Programmers:   Kevin M. Rosenberg based on
   8 ;;;;                Original code by Pierre R. Mai
   9 ;;;; Date Started:  Feb 2002
  10 ;;;;
  11 ;;;; $Id$
  12 ;;;;
  13 ;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
  14 ;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
  15 ;;;;
  16 ;;;; CLSQL users are granted the rights to distribute and use this software
  17 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
  18 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
  19 ;;;; *************************************************************************
  20
  21 (in-package #:mysql)
  22
  23 ;;;; Modifications from original code
  24 ;;;;  - Updated C-structures to conform to structures in MySQL 3.23.46
  25 ;;;;  - Changed from CMUCL interface to UFFI
  26 ;;;;  - Added and call a C-helper file to support 64-bit integers
  27 ;;;;    that are used in a few routines.
  28 ;;;;  - Removed all references to interiors of C-structions, this will
  29 ;;;;    increase robustness when MySQL's internal structures change.
  30
  31 ;;;; Type definitions
  32
  33 ;;; Basic Types
  34
  35 (uffi:def-foreign-type mysql-socket :int)
  36 (uffi:def-foreign-type mysql-bool :byte)
  37 (uffi:def-foreign-type mysql-byte :unsigned-char)
  38
  39 (uffi:def-enum mysql-net-type
  40     (:tcp-ip
  41      :socket
  42      :named-pipe))
  43
  44 (uffi:def-struct mysql-net
  45     (vio :pointer-void)
  46   (fd mysql-socket)
  47   (fcntl :int)
  48   (buff (* :unsigned-char))
  49   (buff-end (* :unsigned-char))
  50   (write-pos (* :unsigned-char))
  51   (read-pos (* :unsigned-char))
  52   (last-error (:array :char 200))
  53   (last-errno :unsigned-int)
  54   (max-packet :unsigned-int)
  55   (timeout :unsigned-int)
  56   (pkt-nr :unsigned-int)
  57   (error mysql-bool)
  58   (return-errno mysql-bool)
  59   (compress mysql-bool)
  60   (no-send-ok mysql-bool)
  61   (remain-in-buf :unsigned-long)
  62   (length :unsigned-long)
  63   (buf-length :unsigned-long)
  64   (where-b :unsigned-long)
  65   (return-status (* :unsigned-int))
  66   (reading-or-writing :unsigned-char)
  67   (save-char :char))
  68
  69 ;;; Mem-Root
  70 (uffi:def-struct mysql-used-mem
  71     (next :pointer-self)
  72   (left :unsigned-int)
  73   (size :unsigned-int))
  74
  75 (uffi:def-struct mysql-mem-root
  76     (free (:struct-pointer mysql-used-mem))
  77   (used (:struct-pointer mysql-used-mem))
  78   (pre-alloc (:struct-pointer mysql-used-mem))
  79   (min-alloc :unsigned-int)
  80   (block-size :unsigned-int)
  81   (error-handler :pointer-void))
  82
  83 ;;; MYSQL-FIELD
  84 (uffi:def-enum mysql-field-types
  85     (:decimal
  86      :tiny
  87      :short
  88      :long
  89      :float
  90      :double
  91      :null
  92      :timestamp
  93      :longlong
  94      :int24
  95      :date
  96      :time
  97      :datetime
  98      :year
  99      :newdate
 100      (:enum 247)
 101      (:set 248)
 102      (:tiny-blob 249)
 103      (:medium-blob 250)
 104      (:long-blob 251)
 105      (:blob 252)
 106      (:var-string 253)
 107      (:string 254)
 108      (:geometry 255)))
 109
 110 #+mysql-client-v3
 111 (uffi:def-struct mysql-field
 112     (name (* :char))
 113   (table (* :char))
 114   (def (* :char))
 115   (type mysql-field-types)
 116   (length :unsigned-int)
 117   (max-length :unsigned-int)
 118   (flags :unsigned-int)
 119   (decimals :unsigned-int))
 120
 121 ;; structure changed in mysql 4 client
 122 #+(and mysql-client-v4 (not mysql-client-v4.1))
 123 (uffi:def-struct mysql-field
 124     (name (* :char))
 125   (table (* :char))
 126   (org_table (* :char))
 127   (db (* :char))
 128   (def (* :char))
 129   (length :unsigned-long)
 130   (max-length :unsigned-long)
 131   (flags :unsigned-int)
 132   (decimals :unsigned-int)
 133   (type mysql-field-types))
 134
 135 #+mysql-client-v4.1
 136 (uffi:def-struct mysql-field
 137     (name (* :char))
 138   (org_name (* :char))
 139   (table (* :char))
 140   (org_table (* :char))
 141   (db (* :char))
 142   (catalog_db (* :char))
 143   (def (* :char))
 144   (length :unsigned-long)
 145   (max-length :unsigned-long)
 146   (name-length :unsigned-int)
 147   (org-name-length :unsigned-int)
 148   (table-length :unsigned-int)
 149   (org-table-length :unsigned-int)
 150   (db-length :unsigned-int)
 151   (catalog-length :unsigned-int)
 152   (def-length :unsigned-int)
 153   (flags :unsigned-int)
 154   (decimals :unsigned-int)
 155   (charsetnr :unsigned-int)
 156   (type mysql-field-types))
 157
 158 (uffi:def-struct mysql-time
 159     (year :unsigned-int)
 160   (month :unsigned-int)
 161   (day :unsigned-int)
 162   (hour :unsigned-int)
 163   (minute :unsigned-int)
 164   (second :unsigned-int)
 165   (second-part :unsigned-long)
 166   (neg mysql-bool)
 167   (time-type :int))
 168
 169 ;;; MYSQL-ROWS
 170
 171 (uffi:def-array-pointer mysql-row (* :unsigned-char))
 172
 173 (uffi:def-array-pointer mysql-field-vector (* mysql-field))
 174
 175 (uffi:def-foreign-type mysql-field-offset :unsigned-int)
 176
 177 (uffi:def-struct mysql-rows
 178     (next :pointer-self)
 179   (data mysql-row))
 180
 181 (uffi:def-foreign-type mysql-row-offset (:struct-pointer mysql-rows))
 182
 183 (uffi:def-struct mysql-data
 184     (rows-high32 :unsigned-long)
 185   (rows-low32 :unsigned-long)
 186   (fields :unsigned-int)
 187   (data (:struct-pointer mysql-rows))
 188   (alloc (:struct mysql-mem-root)))
 189
 190 ;;; MYSQL
 191 (uffi:def-struct mysql-options
 192     (connect-timeout :unsigned-int)
 193   (client-flag :unsigned-int)
 194   (compress mysql-bool)
 195   (named-pipe mysql-bool)
 196   (port :unsigned-int)
 197   (host (* :char))
 198   (init-command (* :char))
 199   (user (* :char))
 200   (password (* :char))
 201   (unix-socket (* :char))
 202   (db (* :char))
 203   (my-cnf-file (* :char))
 204   (my-cnf-group (* :char))
 205   (charset-dir (* :char))
 206   (charset-name (* :char))
 207   (use-ssl mysql-bool)
 208   (ssl-key (* :char))
 209   (ssl-cert (* :char))
 210   (ssl-ca (* :char))
 211   (ssl-capath (* :char)))
 212
 213 (uffi:def-enum mysql-option
 214     (:connect-timeout
 215      :compress
 216      :named-pipe
 217      :init-command
 218      :read-default-file
 219      :read-default-group))
 220
 221 (uffi:def-enum mysql-status
 222     (:ready
 223      :get-result
 224      :use-result))
 225
 226 (uffi:def-struct mysql-mysql
 227     (net (:struct mysql-net))
 228   (connected-fd (* :char))
 229   (host (* :char))
 230   (user (* :char))
 231   (passwd (* :char))
 232   (unix-socket (* :char))
 233   (server-version (* :char))
 234   (host-info (* :char))
 235   (info (* :char))
 236   (db (* :char))
 237   (port :unsigned-int)
 238   (client-flag :unsigned-int)
 239   (server-capabilities :unsigned-int)
 240   (protocol-version :unsigned-int)
 241   (field-count :unsigned-int)
 242   (server-status :unsigned-int)
 243   (thread-id :unsigned-long)
 244   (affected-rows-high32 :unsigned-long)
 245   (affected-rows-low32 :unsigned-long)
 246   (insert-id-high32 :unsigned-long)
 247   (insert-id-low32 :unsigned-long)
 248   (extra-info-high32 :unsigned-long)
 249   (extra-info-low32 :unsigned-long)
 250   (packet-length :unsigned-long)
 251   (status mysql-status)
 252   (fields (:struct-pointer mysql-field))
 253   (field-alloc (:struct mysql-mem-root))
 254   (free-me mysql-bool)
 255   (reconnect mysql-bool)
 256   (options (:struct mysql-options))
 257   (scramble-buff (:array :char 9))
 258   (charset :pointer-void)
 259   (server-language :unsigned-int))
 260
 261
 262 ;;; MYSQL-RES
 263 (uffi:def-struct mysql-mysql-res
 264     (row-count-high32 :unsigned-long)
 265   (row-count-low32 :unsigned-long)
 266   (field-count :unsigned-int)
 267   (current-field :unsigned-int)
 268   (fields (:struct-pointer mysql-field))
 269   (data (:struct-pointer mysql-data))
 270   (data-cursor (:struct-pointer mysql-rows))
 271   (field-alloc (:struct mysql-mem-root))
 272   (row mysql-row)
 273   (current-row mysql-row)
 274   (lengths (* :unsigned-long))
 275   (handle (:struct-pointer mysql-mysql))
 276   (eof mysql-bool))
 277
 278 #+mysql-client-4.1
 279 (uffi:def-enum mysql-field-types
 280     (:ready
 281      :get-result
 282      :use-result))
 283
 284 #+mysql-client-v4.1
 285 (uffi:def-struct mysql-bind
 286     (length (* :unsigned-long))
 287   (is-null (* mysql-bool))
 288   (buffer :pointer-void)
 289   (buffer-type :int)
 290   (buffer-length :unsigned-long)
 291   ;; internal use
 292   (inter_buffer (* :unsigned-char))
 293   (offset :unsigned-long)
 294   (internal-length :unsigned-long)
 295   (param-number :unsigned-int)
 296   (pack-length :unsigned-int)
 297   (is-signed mysql-bool)
 298   (long-data-used mysql-bool)
 299   (internal-is-null mysql-bool)
 300   (store-param-func :pointer-void)
 301   (fetch-result :pointer-void)
 302   (skip-result :pointer-void))
 303
 304 ;;;; The Foreign C routines
 305 (declaim (inline mysql-init))
 306 (uffi:def-function "mysql_init"
 307   ((mysql (* mysql-mysql)))
 308   :module "mysql"
 309   :returning (* mysql-mysql))
 310
 311 #-mysql-client-v4
 312 (declaim (inline mysql-connect))
 313 #-mysql-client-v4
 314 (uffi:def-function "mysql_connect"
 315     ((mysql (* mysql-mysql))
 316      (host :cstring)
 317      (user :cstring)
 318      (passwd :cstring))
 319   :module "mysql"
 320   :returning (* mysql-mysql))
 321
 322 ;; Need to comment this out for LW 4.2.6
 323 ;; ? bug in LW version
 324 #-lispworks (declaim (inline mysql-real-connect))
 325 (uffi:def-function "mysql_real_connect"
 326     ((mysql (* mysql-mysql))
 327      (host :cstring)
 328      (user :cstring)
 329      (passwd :cstring)
 330      (db :cstring)
 331      (port :unsigned-int)
 332      (unix-socket :cstring)
 333      (clientflag :unsigned-long))
 334   :module "mysql"
 335   :returning (* mysql-mysql))
 336
 337 (declaim (inline mysql-close))
 338 (uffi:def-function "mysql_close"
 339     ((sock (* mysql-mysql)))
 340   :module "mysql"
 341   :returning :void)
 342
 343 (declaim (inline mysql-select-db))
 344 (uffi:def-function "mysql_select_db"
 345   ((mysql (* mysql-mysql))
 346    (db :cstring))
 347   :module "mysql"
 348   :returning :int)
 349
 350 (declaim (inline mysql-query))
 351 (uffi:def-function "mysql_query"
 352     ((mysql (* mysql-mysql))
 353      (query :cstring))
 354   :module "mysql"
 355   :returning :int)
 356
 357  ;;; I doubt that this function is really useful for direct Lisp usage,
 358 ;;; but it is here for completeness...
 359
 360 (declaim (inline mysql-real-query))
 361 (uffi:def-function "mysql_real_query"
 362     ((mysql (* mysql-mysql))
 363      (query :cstring)
 364      (length :unsigned-int))
 365   :module "mysql"
 366   :returning :int)
 367
 368 #-mysql-client-v4
 369 (declaim (inline mysql-create-db))
 370 #-mysql-client-v4
 371 (uffi:def-function "mysql_create_db"
 372   ((mysql (* mysql-mysql))
 373    (db :cstring))
 374   :module "mysql"
 375   :returning :int)
 376
 377 #-mysql-client-v4
 378 (declaim (inline mysql-drop-db))
 379 #-mysql-client-v4
 380 (uffi:def-function "mysql_drop_db"
 381     ((mysql (* mysql-mysql))
 382      (db :cstring))
 383   :module "mysql"
 384   :returning :int)
 385
 386 (declaim (inline mysql-shutdown))
 387 (uffi:def-function "mysql_shutdown"
 388   ((mysql (* mysql-mysql)))
 389   :module "mysql"
 390   :returning :int)
 391
 392 (declaim (inline mysql-dump-debug-info))
 393 (uffi:def-function "mysql_dump_debug_info"
 394   ((mysql (* mysql-mysql)))
 395   :module "mysql"
 396   :returning :int)
 397
 398 (declaim (inline mysql-refresh))
 399 (uffi:def-function "mysql_refresh"
 400   ((mysql (* mysql-mysql))
 401    (refresh-options :unsigned-int))
 402   :module "mysql"
 403   :returning :int)
 404
 405 (declaim (inline mysql-kill))
 406 (uffi:def-function "mysql_kill"
 407     ((mysql (* mysql-mysql))
 408      (pid :unsigned-long))
 409   :module "mysql"
 410   :returning :int)
 411
 412 (declaim (inline mysql-ping))
 413 (uffi:def-function "mysql_ping"
 414     ((mysql (* mysql-mysql)))
 415   :module "mysql"
 416   :returning :int)
 417
 418 (declaim (inline mysql-stat))
 419 (uffi:def-function "mysql_stat"
 420   ((mysql (* mysql-mysql)))
 421   :module "mysql"
 422   :returning :cstring)
 423
 424 (declaim (inline mysql-get-server-info))
 425 (uffi:def-function "mysql_get_server_info"
 426     ((mysql (* mysql-mysql)))
 427   :module "mysql"
 428   :returning :cstring)
 429
 430 (declaim (inline mysql-get-host-info))
 431 (uffi:def-function "mysql_get_host_info"
 432     ((mysql (* mysql-mysql)))
 433   :module "mysql"
 434   :returning :cstring)
 435
 436 (declaim (inline mysql-get-proto-info))
 437 (uffi:def-function "mysql_get_proto_info"
 438   ((mysql (* mysql-mysql)))
 439   :module "mysql"
 440   :returning :unsigned-int)
 441
 442 (declaim (inline mysql-list-dbs))
 443 (uffi:def-function "mysql_list_dbs"
 444   ((mysql (* mysql-mysql))
 445    (wild :cstring))
 446   :module "mysql"
 447   :returning (* mysql-mysql-res))
 448
 449 (declaim (inline mysql-list-tables))
 450 (uffi:def-function "mysql_list_tables"
 451   ((mysql (* mysql-mysql))
 452    (wild :cstring))
 453   :module "mysql"
 454   :returning (* mysql-mysql-res))
 455
 456 (declaim (inline mysql-list-fields))
 457 (uffi:def-function "mysql_list_fields"
 458   ((mysql (* mysql-mysql))
 459    (table :cstring)
 460    (wild :cstring))
 461   :module "mysql"
 462   :returning (* mysql-mysql-res))
 463
 464 (declaim (inline mysql-list-processes))
 465 (uffi:def-function "mysql_list_processes"
 466   ((mysql (* mysql-mysql)))
 467   :module "mysql"
 468   :returning (* mysql-mysql-res))
 469
 470 (declaim (inline mysql-store-result))
 471 (uffi:def-function "mysql_store_result"
 472   ((mysql (* mysql-mysql)))
 473   :module "mysql"
 474   :returning (* mysql-mysql-res))
 475
 476 (declaim (inline mysql-use-result))
 477 (uffi:def-function "mysql_use_result"
 478   ((mysql (* mysql-mysql)))
 479   :module "mysql"
 480   :returning (* mysql-mysql-res))
 481
 482 (declaim (inline mysql-options))
 483 (uffi:def-function "mysql_options"
 484   ((mysql (* mysql-mysql))
 485    (option mysql-option)
 486    (arg :cstring))
 487   :module "mysql"
 488   :returning :int)
 489
 490 (declaim (inline mysql-free-result))
 491 (uffi:def-function "mysql_free_result"
 492     ((res (* mysql-mysql-res)))
 493   :module "mysql"
 494   :returning :void)
 495
 496 (declaim (inline mysql-row-seek))
 497 (uffi:def-function "mysql_row_seek"
 498   ((res (* mysql-mysql-res))
 499    (offset mysql-row-offset))
 500   :module "mysql"
 501   :returning mysql-row-offset)
 502
 503 (declaim (inline mysql-field-seek))
 504 (uffi:def-function "mysql_field_seek"
 505   ((res (* mysql-mysql-res))
 506   (offset mysql-field-offset))
 507   :module "mysql"
 508   :returning mysql-field-offset)
 509
 510 (declaim (inline mysql-fetch-row))
 511 (uffi:def-function "mysql_fetch_row"
 512     ((res (* mysql-mysql-res)))
 513   :module "mysql"
 514   :returning (* (* :unsigned-char)))
 515
 516 (declaim (inline mysql-fetch-lengths))
 517 (uffi:def-function "mysql_fetch_lengths"
 518   ((res (* mysql-mysql-res)))
 519   :module "mysql"
 520   :returning (* :unsigned-long))
 521
 522 (declaim (inline mysql-fetch-field))
 523 (uffi:def-function "mysql_fetch_field"
 524   ((res (* mysql-mysql-res)))
 525   :module "mysql"
 526   :returning (* mysql-field))
 527
 528 (declaim (inline mysql-fetch-fields))
 529 (uffi:def-function "mysql_fetch_fields"
 530   ((res (* mysql-mysql-res)))
 531   :module "mysql"
 532   :returning (* mysql-field))
 533
 534 (declaim (inline mysql-fetch-field-direct))
 535 (uffi:def-function "mysql_fetch_field_direct"
 536   ((res (* mysql-mysql-res))
 537    (field-num :unsigned-int))
 538   :module "mysql"
 539   :returning (* mysql-field))
 540
 541 (declaim (inline mysql-escape-string))
 542 (uffi:def-function "mysql_escape_string"
 543     ((to (* :unsigned-char))
 544      (from (* :unsigned-char))
 545      (length :unsigned-int))
 546   :module "mysql"
 547   :returning :unsigned-int)
 548
 549 (declaim (inline mysql-debug))
 550 (uffi:def-function "mysql_debug"
 551     ((debug :cstring))
 552   :module "mysql"
 553   :returning :void)
 554
 555 (declaim (inline clsql-mysql-num-rows))
 556 (uffi:def-function "clsql_mysql_num_rows"
 557     ((res (* mysql-mysql-res))
 558      (p-high32 (* :unsigned-int)))
 559   :module "clsql-mysql"
 560   :returning :unsigned-int)
 561
 562 #+mysql-client-v4.1
 563 (uffi:def-foreign-type mysql-stmt-ptr :pointer-void)
 564
 565 #+mysql-client-v4.1
 566 (uffi:def-function "mysql_stmt_init"
 567     ((res (* mysql-mysql-res)))
 568   :module "clsql-mysql"
 569   :returning mysql-stmt-ptr)
 570
 571 #+mysql-client-v4.1
 572 (uffi:def-function "mysql_stmt_prepare"
 573     ((stmt mysql-stmt-ptr)
 574      (query :cstring)
 575      (length :unsigned-long))
 576   :module "clsql-mysql"
 577   :returning :int)
 578
 579 #+mysql-client-v4.1
 580 (uffi:def-function "mysql_stmt_param_count"
 581     ((stmt mysql-stmt-ptr))
 582   :module "clsql-mysql"
 583   :returning :unsigned-int)
 584
 585 #+mysql-client-v4.1
 586 (uffi:def-function "mysql_stmt_bind_param"
 587     ((stmt mysql-stmt-ptr)
 588      (bind (* mysql-bind)))
 589   :module "clsql-mysql"
 590   :returning :short)
 591
 592 #+mysql-client-v4.1
 593 (uffi:def-function "mysql_stmt_bind_result"
 594     ((stmt mysql-stmt-ptr)
 595      (bind (* mysql-bind)))
 596   :module "clsql-mysql"
 597   :returning :short)
 598
 599 #+mysql-client-v4.1
 600 (uffi:def-function "mysql_stmt_result_metadata"
 601     ((stmt mysql-stmt-ptr))
 602   :module "clsql-mysql"
 603   :returning (* mysql-mysql-res))
 604
 605
 606 #+mysql-client-v4.1
 607 (uffi:def-function "mysql_stmt_execute"
 608     ((stmt mysql-stmt-ptr))
 609   :module "clsql-mysql"
 610   :returning :int)
 611
 612 #+mysql-client-v4.1
 613 (uffi:def-function "mysql_stmt_store_result"
 614     ((stmt mysql-stmt-ptr))
 615   :module "clsql-mysql"
 616   :returning :int)
 617
 618 #+mysql-client-v4.1
 619 (uffi:def-function "mysql_stmt_fetch"
 620     ((stmt mysql-stmt-ptr))
 621   :module "clsql-mysql"
 622   :returning :int)
 623
 624 #+mysql-client-v4.1
 625 (uffi:def-function "mysql_stmt_free_result"
 626     ((stmt mysql-stmt-ptr))
 627   :module "clsql-mysql"
 628   :returning :short)
 629
 630 #+mysql-client-v4.1
 631 (uffi:def-function "mysql_stmt_close"
 632     ((stmt mysql-stmt-ptr))
 633   :module "clsql-mysql"
 634   :returning :short)
 635
 636 #+mysql-client-v4.1
 637 (uffi:def-function "mysql_stmt_errno"
 638     ((stmt mysql-stmt-ptr))
 639   :module "clsql-mysql"
 640   :returning :unsigned-int)
 641
 642 #+mysql-client-v4.1
 643 (uffi:def-function "mysql_stmt_error"
 644     ((stmt mysql-stmt-ptr))
 645   :module "clsql-mysql"
 646   :returning :cstring)
 647
 648
 649 ;;;; Equivalents of C Macro definitions for accessing various fields
 650 ;;;; in the internal MySQL Datastructures
 651
 652
 653 (declaim (inline mysql-num-rows))
 654 (defun mysql-num-rows (res)
 655   (uffi:with-foreign-object (p-high32 :unsigned-int)
 656     (let ((low32 (clsql-mysql-num-rows res p-high32))
 657           (high32 (uffi:deref-pointer p-high32 :unsigned-int)))
 658       (if (zerop high32)
 659           low32
 660         (make-64-bit-integer high32 low32)))))
 661
 662 (uffi:def-function "clsql_mysql_affected_rows"
 663     ((mysql (* mysql-mysql))
 664      (p-high32 (* :unsigned-int)))
 665   :returning :unsigned-int
 666   :module "clsql-mysql")
 667
 668 (defun mysql-affected-rows (mysql)
 669   (uffi:with-foreign-object (p-high32 :unsigned-int)
 670     (let ((low32 (clsql-mysql-affected-rows mysql p-high32))
 671           (high32 (uffi:deref-pointer p-high32 :unsigned-int)))
 672       (if (zerop high32)
 673           low32
 674         (make-64-bit-integer high32 low32)))))
 675
 676 (uffi:def-function "clsql_mysql_insert_id"
 677     ((res (* mysql-mysql))
 678      (p-high32 (* :unsigned-int)))
 679   :returning :unsigned-int
 680   :module "clsql-mysql")
 681
 682 (defun mysql-insert-id (mysql)
 683   (uffi:with-foreign-object (p-high32 :unsigned-int)
 684   (let ((low32 (clsql-mysql-insert-id mysql p-high32))
 685         (high32 (uffi:deref-pointer p-high32 :unsigned-int)))
 686     (if (zerop high32)
 687         low32
 688       (make-64-bit-integer high32 low32)))))
 689
 690
 691 (declaim (inline mysql-num-fields))
 692 (uffi:def-function "mysql_num_fields"
 693   ((res (* mysql-mysql-res)))
 694   :returning :unsigned-int
 695   :module "mysql")
 696
 697 (declaim (inline clsql-mysql-eof))
 698 (uffi:def-function ("mysql_eof" clsql-mysql-eof)
 699   ((res (* mysql-mysql-res)))
 700   :returning :char
 701   :module "mysql")
 702
 703 (declaim (inline mysql-eof))
 704 (defun mysql-eof (res)
 705   (if (zerop (clsql-mysql-eof res))
 706       nil
 707     t))
 708
 709 (declaim (inline mysql-error))
 710 (uffi:def-function ("mysql_error" mysql-error)
 711   ((mysql (* mysql-mysql)))
 712   :returning :cstring
 713   :module "mysql")
 714
 715 (declaim (inline mysql-error-string))
 716 (defun mysql-error-string (mysql)
 717   (uffi:convert-from-cstring (mysql-error mysql)))
 718
 719 (declaim (inline mysql-errno))
 720 (uffi:def-function "mysql_errno"
 721   ((mysql (* mysql-mysql)))
 722   :returning :unsigned-int
 723   :module "mysql")
 724
 725 (declaim (inline mysql-info))
 726 (uffi:def-function ("mysql_info" mysql-info)
 727   ((mysql (* mysql-mysql)))
 728   :returning :cstring
 729   :module "mysql")
 730
 731 (declaim (inline mysql-info-string))
 732 (defun mysql-info-string (mysql)
 733   (uffi:convert-from-cstring (mysql-info mysql)))
 734
 735 (declaim (inline clsql-mysql-data-seek))
 736 (uffi:def-function "clsql_mysql_data_seek"
 737   ((res (* mysql-mysql-res))
 738    (offset-high32 :unsigned-int)
 739    (offset-low32 :unsigned-int))
 740   :module "clsql-mysql"
 741   :returning :void)
 742
 743 (defun mysql-data-seek (res offset)
 744   (multiple-value-bind (high32 low32) (split-64-bit-integer offset)
 745     (clsql-mysql-data-seek res high32 low32)))