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Demo working with MySQL
author Adam Chlipala <adamc@hcoop.net>
date Thu, 16 Jul 2009 18:10:29 -0400
parents a8952047e1d3
children 8e9f2d247dba
rev   line source
adamc@879 1 (* Copyright (c) 2009, Adam Chlipala
adamc@866 2 * All rights reserved.
adamc@866 3 *
adamc@866 4 * Redistribution and use in source and binary forms, with or without
adamc@866 5 * modification, are permitted provided that the following conditions are met:
adamc@866 6 *
adamc@866 7 * - Redistributions of source code must retain the above copyright notice,
adamc@866 8 * this list of conditions and the following disclaimer.
adamc@866 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@866 10 * this list of conditions and the following disclaimer in the documentation
adamc@866 11 * and/or other materials provided with the distribution.
adamc@866 12 * - The names of contributors may not be used to endorse or promote products
adamc@866 13 * derived from this software without specific prior written permission.
adamc@866 14 *
adamc@866 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@866 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@866 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@866 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@866 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@866 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@866 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@866 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@866 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@866 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@866 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@866 26 *)
adamc@866 27
adamc@866 28 structure MySQL :> MYSQL = struct
adamc@866 29
adamc@866 30 open Settings
adamc@866 31 open Print.PD
adamc@866 32 open Print
adamc@866 33
adamc@873 34 fun p_sql_type t =
adamc@873 35 case t of
adamc@873 36 Int => "bigint"
adamc@873 37 | Float => "double"
adamc@873 38 | String => "longtext"
adamc@873 39 | Bool => "bool"
adamc@873 40 | Time => "timestamp"
adamc@873 41 | Blob => "longblob"
adamc@873 42 | Channel => "bigint"
adamc@873 43 | Client => "int"
adamc@873 44 | Nullable t => p_sql_type t
adamc@873 45
adamc@873 46 fun p_buffer_type t =
adamc@873 47 case t of
adamc@873 48 Int => "MYSQL_TYPE_LONGLONG"
adamc@873 49 | Float => "MYSQL_TYPE_DOUBLE"
adamc@873 50 | String => "MYSQL_TYPE_STRING"
adamc@873 51 | Bool => "MYSQL_TYPE_LONG"
adamc@873 52 | Time => "MYSQL_TYPE_TIME"
adamc@873 53 | Blob => "MYSQL_TYPE_BLOB"
adamc@873 54 | Channel => "MYSQL_TYPE_LONGLONG"
adamc@873 55 | Client => "MYSQL_TYPE_LONG"
adamc@873 56 | Nullable t => p_buffer_type t
adamc@873 57
adamc@874 58 fun p_sql_type_base t =
adamc@874 59 case t of
adamc@874 60 Int => "bigint"
adamc@874 61 | Float => "double"
adamc@874 62 | String => "longtext"
adamc@874 63 | Bool => "tinyint"
adamc@874 64 | Time => "timestamp"
adamc@874 65 | Blob => "longblob"
adamc@874 66 | Channel => "bigint"
adamc@874 67 | Client => "int"
adamc@874 68 | Nullable t => p_sql_type_base t
adamc@874 69
adamc@874 70 val ident = String.translate (fn #"'" => "PRIME"
adamc@874 71 | ch => str ch)
adamc@874 72
adamc@874 73 fun checkRel (table, checkNullable) (s, xts) =
adamc@874 74 let
adamc@874 75 val sl = CharVector.map Char.toLower s
adamc@874 76
adamc@874 77 val q = "SELECT COUNT(*) FROM information_schema." ^ table ^ " WHERE table_name = '"
adamc@874 78 ^ sl ^ "'"
adamc@874 79
adamc@874 80 val q' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE table_name = '",
adamc@874 81 sl,
adamc@874 82 "' AND (",
adamc@874 83 String.concatWith " OR "
adamc@874 84 (map (fn (x, t) =>
adamc@874 85 String.concat ["(column_name = 'uw_",
adamc@874 86 CharVector.map
adamc@874 87 Char.toLower (ident x),
adamc@874 88 "' AND data_type = '",
adamc@874 89 p_sql_type_base t,
adamc@874 90 "'",
adamc@874 91 if checkNullable then
adamc@874 92 (" AND is_nullable = '"
adamc@874 93 ^ (if isNotNull t then
adamc@874 94 "NO"
adamc@874 95 else
adamc@874 96 "YES")
adamc@874 97 ^ "'")
adamc@874 98 else
adamc@874 99 "",
adamc@874 100 ")"]) xts),
adamc@874 101 ")"]
adamc@874 102
adamc@874 103 val q'' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE table_name = '",
adamc@874 104 sl,
adamc@874 105 "' AND column_name LIKE 'uw_%'"]
adamc@874 106 in
adamc@874 107 box [string "if (mysql_query(conn->conn, \"",
adamc@874 108 string q,
adamc@874 109 string "\")) {",
adamc@874 110 newline,
adamc@874 111 box [string "mysql_close(conn->conn);",
adamc@874 112 newline,
adamc@874 113 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 114 string q,
adamc@874 115 string "\");",
adamc@874 116 newline],
adamc@874 117 string "}",
adamc@874 118 newline,
adamc@874 119 newline,
adamc@874 120
adamc@874 121 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 122 newline,
adamc@874 123 box [string "mysql_free_result(res);",
adamc@874 124 newline,
adamc@874 125 string "mysql_close(conn->conn);",
adamc@874 126 newline,
adamc@874 127 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 128 string q,
adamc@874 129 string "\");",
adamc@874 130 newline],
adamc@874 131 string "}",
adamc@874 132 newline,
adamc@874 133 newline,
adamc@874 134
adamc@874 135 string "if (mysql_num_fields(res) != 1) {",
adamc@874 136 newline,
adamc@874 137 box [string "mysql_free_result(res);",
adamc@874 138 newline,
adamc@874 139 string "mysql_close(conn->conn);",
adamc@874 140 newline,
adamc@874 141 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 142 string q,
adamc@874 143 string "\");",
adamc@874 144 newline],
adamc@874 145 string "}",
adamc@874 146 newline,
adamc@874 147 newline,
adamc@874 148
adamc@874 149 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 150 newline,
adamc@874 151 box [string "mysql_free_result(res);",
adamc@874 152 newline,
adamc@874 153 string "mysql_close(conn->conn);",
adamc@874 154 newline,
adamc@874 155 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 156 string q,
adamc@874 157 string "\");",
adamc@874 158 newline],
adamc@874 159 string "}",
adamc@874 160 newline,
adamc@874 161 newline,
adamc@874 162
adamc@874 163 string "if (strcmp(row[0], \"1\")) {",
adamc@874 164 newline,
adamc@874 165 box [string "mysql_free_result(res);",
adamc@874 166 newline,
adamc@874 167 string "mysql_close(conn->conn);",
adamc@874 168 newline,
adamc@874 169 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 170 string s,
adamc@874 171 string "' does not exist.\");",
adamc@874 172 newline],
adamc@874 173 string "}",
adamc@874 174 newline,
adamc@874 175 newline,
adamc@874 176 string "mysql_free_result(res);",
adamc@874 177 newline,
adamc@874 178 newline,
adamc@874 179
adamc@874 180 string "if (mysql_query(conn->conn, \"",
adamc@874 181 string q',
adamc@874 182 string "\")) {",
adamc@874 183 newline,
adamc@874 184 box [string "mysql_close(conn->conn);",
adamc@874 185 newline,
adamc@874 186 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 187 string q',
adamc@874 188 string "\");",
adamc@874 189 newline],
adamc@874 190 string "}",
adamc@874 191 newline,
adamc@874 192 newline,
adamc@874 193
adamc@874 194 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 195 newline,
adamc@874 196 box [string "mysql_free_result(res);",
adamc@874 197 newline,
adamc@874 198 string "mysql_close(conn->conn);",
adamc@874 199 newline,
adamc@874 200 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 201 string q',
adamc@874 202 string "\");",
adamc@874 203 newline],
adamc@874 204 string "}",
adamc@874 205 newline,
adamc@874 206 newline,
adamc@874 207
adamc@874 208 string "if (mysql_num_fields(res) != 1) {",
adamc@874 209 newline,
adamc@874 210 box [string "mysql_free_result(res);",
adamc@874 211 newline,
adamc@874 212 string "mysql_close(conn->conn);",
adamc@874 213 newline,
adamc@874 214 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 215 string q',
adamc@874 216 string "\");",
adamc@874 217 newline],
adamc@874 218 string "}",
adamc@874 219 newline,
adamc@874 220 newline,
adamc@874 221
adamc@874 222 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 223 newline,
adamc@874 224 box [string "mysql_free_result(res);",
adamc@874 225 newline,
adamc@874 226 string "mysql_close(conn->conn);",
adamc@874 227 newline,
adamc@874 228 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 229 string q',
adamc@874 230 string "\");",
adamc@874 231 newline],
adamc@874 232 string "}",
adamc@874 233 newline,
adamc@874 234 newline,
adamc@874 235
adamc@874 236 string "if (strcmp(row[0], \"",
adamc@874 237 string (Int.toString (length xts)),
adamc@874 238 string "\")) {",
adamc@874 239 newline,
adamc@874 240 box [string "mysql_free_result(res);",
adamc@874 241 newline,
adamc@874 242 string "mysql_close(conn->conn);",
adamc@874 243 newline,
adamc@874 244 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 245 string s,
adamc@874 246 string "' has the wrong column types.\");",
adamc@874 247 newline],
adamc@874 248 string "}",
adamc@874 249 newline,
adamc@874 250 newline,
adamc@874 251 string "mysql_free_result(res);",
adamc@874 252 newline,
adamc@874 253 newline,
adamc@874 254
adamc@874 255 string "if (mysql_query(conn->conn, \"",
adamc@874 256 string q'',
adamc@874 257 string "\")) {",
adamc@874 258 newline,
adamc@874 259 box [string "mysql_close(conn->conn);",
adamc@874 260 newline,
adamc@874 261 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 262 string q'',
adamc@874 263 string "\");",
adamc@874 264 newline],
adamc@874 265 string "}",
adamc@874 266 newline,
adamc@874 267 newline,
adamc@874 268
adamc@874 269 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 270 newline,
adamc@874 271 box [string "mysql_free_result(res);",
adamc@874 272 newline,
adamc@874 273 string "mysql_close(conn->conn);",
adamc@874 274 newline,
adamc@874 275 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 276 string q'',
adamc@874 277 string "\");",
adamc@874 278 newline],
adamc@874 279 string "}",
adamc@874 280 newline,
adamc@874 281 newline,
adamc@874 282
adamc@874 283 string "if (mysql_num_fields(res) != 1) {",
adamc@874 284 newline,
adamc@874 285 box [string "mysql_free_result(res);",
adamc@874 286 newline,
adamc@874 287 string "mysql_close(conn->conn);",
adamc@874 288 newline,
adamc@874 289 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 290 string q'',
adamc@874 291 string "\");",
adamc@874 292 newline],
adamc@874 293 string "}",
adamc@874 294 newline,
adamc@874 295 newline,
adamc@874 296
adamc@874 297 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 298 newline,
adamc@874 299 box [string "mysql_free_result(res);",
adamc@874 300 newline,
adamc@874 301 string "mysql_close(conn->conn);",
adamc@874 302 newline,
adamc@874 303 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 304 string q'',
adamc@874 305 string "\");",
adamc@874 306 newline],
adamc@874 307 string "}",
adamc@874 308 newline,
adamc@874 309 newline,
adamc@874 310
adamc@874 311 string "if (strcmp(row[0], \"",
adamc@874 312 string (Int.toString (length xts)),
adamc@874 313 string "\")) {",
adamc@874 314 newline,
adamc@874 315 box [string "mysql_free_result(res);",
adamc@874 316 newline,
adamc@874 317 string "mysql_close(conn->conn);",
adamc@874 318 newline,
adamc@874 319 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 320 string s,
adamc@874 321 string "' has extra columns.\");",
adamc@874 322 newline],
adamc@874 323 string "}",
adamc@874 324 newline,
adamc@874 325 newline,
adamc@874 326 string "mysql_free_result(res);",
adamc@874 327 newline]
adamc@874 328 end
adamc@874 329
adamc@872 330 fun init {dbstring, prepared = ss, tables, views, sequences} =
adamc@866 331 let
adamc@866 332 val host = ref NONE
adamc@866 333 val user = ref NONE
adamc@866 334 val passwd = ref NONE
adamc@866 335 val db = ref NONE
adamc@866 336 val port = ref NONE
adamc@866 337 val unix_socket = ref NONE
adamc@866 338
adamc@866 339 fun stringOf r = case !r of
adamc@866 340 NONE => string "NULL"
adamc@866 341 | SOME s => box [string "\"",
adamc@866 342 string (String.toString s),
adamc@866 343 string "\""]
adamc@866 344 in
adamc@866 345 app (fn s =>
adamc@866 346 case String.fields (fn ch => ch = #"=") s of
adamc@866 347 [name, value] =>
adamc@866 348 (case name of
adamc@866 349 "host" =>
adamc@866 350 if size value > 0 andalso String.sub (value, 0) = #"/" then
adamc@866 351 unix_socket := SOME value
adamc@866 352 else
adamc@866 353 host := SOME value
adamc@866 354 | "hostaddr" => host := SOME value
adamc@866 355 | "port" => port := Int.fromString value
adamc@866 356 | "dbname" => db := SOME value
adamc@866 357 | "user" => user := SOME value
adamc@866 358 | "password" => passwd := SOME value
adamc@866 359 | _ => ())
adamc@866 360 | _ => ()) (String.tokens Char.isSpace dbstring);
adamc@866 361
adamc@866 362 box [string "typedef struct {",
adamc@866 363 newline,
adamc@866 364 box [string "MYSQL *conn;",
adamc@866 365 newline,
adamc@866 366 p_list_sepi (box [])
adamc@866 367 (fn i => fn _ =>
adamc@866 368 box [string "MYSQL_STMT *p",
adamc@866 369 string (Int.toString i),
adamc@866 370 string ";",
adamc@866 371 newline])
adamc@866 372 ss],
adamc@866 373 string "} uw_conn;",
adamc@866 374 newline,
adamc@866 375 newline,
adamc@866 376
adamc@874 377 string "void uw_client_init(void) {",
adamc@874 378 newline,
adamc@879 379 box [string "uw_sqlfmtInt = \"%lld%n\";",
adamc@879 380 newline,
adamc@879 381 string "uw_sqlfmtFloat = \"%g%n\";",
adamc@879 382 newline,
adamc@879 383 string "uw_Estrings = 0;",
adamc@879 384 newline,
adamc@879 385 string "uw_sqlsuffixString = \"\";",
adamc@879 386 newline,
adamc@879 387 string "uw_sqlsuffixBlob = \"\";",
adamc@879 388 newline,
adamc@879 389 string "uw_sqlfmtUint4 = \"%u%n\";",
adamc@879 390 newline,
adamc@879 391 newline,
adamc@879 392
adamc@879 393 string "if (mysql_library_init(0, NULL, NULL)) {",
adamc@874 394 newline,
adamc@874 395 box [string "fprintf(stderr, \"Could not initialize MySQL library\\n\");",
adamc@874 396 newline,
adamc@874 397 string "exit(1);",
adamc@874 398 newline],
adamc@874 399 string "}",
adamc@874 400 newline],
adamc@874 401 string "}",
adamc@874 402 newline,
adamc@874 403 newline,
adamc@874 404
adamc@866 405 if #persistent (currentProtocol ()) then
adamc@874 406 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@874 407 newline,
adamc@874 408 string "uw_conn *conn = uw_get_db(ctx);",
adamc@874 409 newline,
adamc@874 410 string "MYSQL_RES *res;",
adamc@874 411 newline,
adamc@874 412 string "MYSQL_ROW row;",
adamc@874 413 newline,
adamc@874 414 newline,
adamc@874 415 p_list_sep newline (checkRel ("tables", true)) tables,
adamc@874 416 p_list_sep newline (checkRel ("views", false)) views,
adamc@874 417 string "}",
adamc@874 418 newline,
adamc@874 419 newline,
adamc@874 420
adamc@874 421 string "static void uw_db_prepare(uw_context ctx) {",
adamc@866 422 newline,
adamc@866 423 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 424 newline,
adamc@866 425 string "MYSQL_STMT *stmt;",
adamc@866 426 newline,
adamc@866 427 newline,
adamc@866 428
adamc@866 429 p_list_sepi newline (fn i => fn (s, n) =>
adamc@866 430 let
adamc@866 431 fun uhoh this s args =
adamc@866 432 box [p_list_sepi (box [])
adamc@866 433 (fn j => fn () =>
adamc@866 434 box [string
adamc@866 435 "mysql_stmt_close(conn->p",
adamc@866 436 string (Int.toString j),
adamc@866 437 string ");",
adamc@866 438 newline])
adamc@866 439 (List.tabulate (i, fn _ => ())),
adamc@866 440 box (if this then
adamc@866 441 [string
adamc@866 442 "mysql_stmt_close(conn->p",
adamc@866 443 string (Int.toString i),
adamc@866 444 string ");",
adamc@866 445 newline]
adamc@866 446 else
adamc@866 447 []),
adamc@866 448 string "mysql_close(conn->conn);",
adamc@866 449 newline,
adamc@866 450 string "uw_error(ctx, FATAL, \"",
adamc@866 451 string s,
adamc@866 452 string "\"",
adamc@866 453 p_list_sep (box []) (fn s => box [string ", ",
adamc@866 454 string s]) args,
adamc@866 455 string ");",
adamc@866 456 newline]
adamc@866 457 in
adamc@866 458 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@866 459 newline,
adamc@866 460 string "if (stmt == NULL) {",
adamc@866 461 newline,
adamc@866 462 uhoh false "Out of memory allocating prepared statement" [],
adamc@866 463 string "}",
adamc@866 464 newline,
adamc@874 465 string "conn->p",
adamc@874 466 string (Int.toString i),
adamc@874 467 string " = stmt;",
adamc@874 468 newline,
adamc@866 469
adamc@866 470 string "if (mysql_stmt_prepare(stmt, \"",
adamc@866 471 string (String.toString s),
adamc@866 472 string "\", ",
adamc@866 473 string (Int.toString (size s)),
adamc@866 474 string ")) {",
adamc@866 475 newline,
adamc@866 476 box [string "char msg[1024];",
adamc@866 477 newline,
adamc@866 478 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@866 479 newline,
adamc@866 480 string "msg[1023] = 0;",
adamc@866 481 newline,
adamc@866 482 uhoh true "Error preparing statement: %s" ["msg"]],
adamc@866 483 string "}",
adamc@866 484 newline]
adamc@866 485 end)
adamc@866 486 ss,
adamc@866 487
adamc@866 488 string "}"]
adamc@866 489 else
adamc@866 490 string "static void uw_db_prepare(uw_context ctx) { }",
adamc@866 491 newline,
adamc@866 492 newline,
adamc@866 493
adamc@866 494 string "void uw_db_init(uw_context ctx) {",
adamc@866 495 newline,
adamc@866 496 string "MYSQL *mysql = mysql_init(NULL);",
adamc@866 497 newline,
adamc@866 498 string "uw_conn *conn;",
adamc@866 499 newline,
adamc@866 500 string "if (mysql == NULL) uw_error(ctx, FATAL, ",
adamc@866 501 string "\"libmysqlclient can't allocate a connection.\");",
adamc@866 502 newline,
adamc@866 503 string "if (mysql_real_connect(mysql, ",
adamc@866 504 stringOf host,
adamc@866 505 string ", ",
adamc@866 506 stringOf user,
adamc@866 507 string ", ",
adamc@866 508 stringOf passwd,
adamc@866 509 string ", ",
adamc@866 510 stringOf db,
adamc@866 511 string ", ",
adamc@866 512 case !port of
adamc@866 513 NONE => string "0"
adamc@866 514 | SOME n => string (Int.toString n),
adamc@866 515 string ", ",
adamc@866 516 stringOf unix_socket,
adamc@874 517 string ", 0) == NULL) {",
adamc@866 518 newline,
adamc@866 519 box [string "char msg[1024];",
adamc@866 520 newline,
adamc@866 521 string "strncpy(msg, mysql_error(mysql), 1024);",
adamc@866 522 newline,
adamc@866 523 string "msg[1023] = 0;",
adamc@866 524 newline,
adamc@866 525 string "mysql_close(mysql);",
adamc@866 526 newline,
adamc@866 527 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@866 528 string "\"Connection to MySQL server failed: %s\", msg);"],
adamc@866 529 newline,
adamc@866 530 string "}",
adamc@866 531 newline,
adamc@874 532 string "conn = calloc(1, sizeof(uw_conn));",
adamc@866 533 newline,
adamc@866 534 string "conn->conn = mysql;",
adamc@866 535 newline,
adamc@866 536 string "uw_set_db(ctx, conn);",
adamc@866 537 newline,
adamc@866 538 string "uw_db_validate(ctx);",
adamc@866 539 newline,
adamc@866 540 string "uw_db_prepare(ctx);",
adamc@866 541 newline,
adamc@866 542 string "}",
adamc@866 543 newline,
adamc@866 544 newline,
adamc@866 545
adamc@866 546 string "void uw_db_close(uw_context ctx) {",
adamc@866 547 newline,
adamc@866 548 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 549 newline,
adamc@866 550 p_list_sepi (box [])
adamc@866 551 (fn i => fn _ =>
adamc@866 552 box [string "if (conn->p",
adamc@866 553 string (Int.toString i),
adamc@866 554 string ") mysql_stmt_close(conn->p",
adamc@866 555 string (Int.toString i),
adamc@866 556 string ");",
adamc@866 557 newline])
adamc@866 558 ss,
adamc@866 559 string "mysql_close(conn->conn);",
adamc@866 560 newline,
adamc@866 561 string "}",
adamc@866 562 newline,
adamc@866 563 newline,
adamc@866 564
adamc@866 565 string "int uw_db_begin(uw_context ctx) {",
adamc@866 566 newline,
adamc@866 567 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 568 newline,
adamc@866 569 newline,
adamc@866 570 string "return mysql_query(conn->conn, \"SET TRANSACTION ISOLATION LEVEL SERIALIZABLE\")",
adamc@866 571 newline,
adamc@866 572 string " || mysql_query(conn->conn, \"BEGIN\");",
adamc@866 573 newline,
adamc@866 574 string "}",
adamc@866 575 newline,
adamc@866 576 newline,
adamc@866 577
adamc@866 578 string "int uw_db_commit(uw_context ctx) {",
adamc@866 579 newline,
adamc@866 580 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 581 newline,
adamc@866 582 string "return mysql_commit(conn->conn);",
adamc@866 583 newline,
adamc@866 584 string "}",
adamc@866 585 newline,
adamc@866 586 newline,
adamc@866 587
adamc@866 588 string "int uw_db_rollback(uw_context ctx) {",
adamc@866 589 newline,
adamc@866 590 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 591 newline,
adamc@866 592 string "return mysql_rollback(conn->conn);",
adamc@866 593 newline,
adamc@866 594 string "}",
adamc@866 595 newline,
adamc@866 596 newline]
adamc@866 597 end
adamc@866 598
adamc@873 599 fun p_getcol {wontLeakStrings = _, col = i, typ = t} =
adamc@873 600 let
adamc@873 601 fun getter t =
adamc@873 602 case t of
adamc@873 603 String => box [string "({",
adamc@873 604 newline,
adamc@873 605 string "uw_Basis_string s = uw_malloc(ctx, length",
adamc@873 606 string (Int.toString i),
adamc@873 607 string " + 1);",
adamc@873 608 newline,
adamc@873 609 string "out[",
adamc@873 610 string (Int.toString i),
adamc@873 611 string "].buffer = s;",
adamc@873 612 newline,
adamc@873 613 string "out[",
adamc@873 614 string (Int.toString i),
adamc@873 615 string "].buffer_length = length",
adamc@873 616 string (Int.toString i),
adamc@873 617 string " + 1;",
adamc@873 618 newline,
adamc@873 619 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 620 string (Int.toString i),
adamc@873 621 string "], ",
adamc@873 622 string (Int.toString i),
adamc@873 623 string ", 0);",
adamc@873 624 newline,
adamc@873 625 string "s[length",
adamc@873 626 string (Int.toString i),
adamc@873 627 string "] = 0;",
adamc@873 628 newline,
adamc@873 629 string "s;",
adamc@873 630 newline,
adamc@873 631 string "})"]
adamc@873 632 | Blob => box [string "({",
adamc@873 633 newline,
adamc@873 634 string "uw_Basis_blob b = {length",
adamc@873 635 string (Int.toString i),
adamc@873 636 string ", uw_malloc(ctx, length",
adamc@873 637 string (Int.toString i),
adamc@873 638 string ")};",
adamc@873 639 newline,
adamc@873 640 string "out[",
adamc@873 641 string (Int.toString i),
adamc@873 642 string "].buffer = b.data;",
adamc@873 643 newline,
adamc@873 644 string "out[",
adamc@873 645 string (Int.toString i),
adamc@873 646 string "].buffer_length = length",
adamc@873 647 string (Int.toString i),
adamc@873 648 string ";",
adamc@873 649 newline,
adamc@873 650 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 651 string (Int.toString i),
adamc@873 652 string "], ",
adamc@873 653 string (Int.toString i),
adamc@873 654 string ", 0);",
adamc@873 655 newline,
adamc@873 656 string "b;",
adamc@873 657 newline,
adamc@873 658 string "})"]
adamc@873 659 | Time => box [string "({",
adamc@876 660 string "MYSQL_TIME *mt = &buffer",
adamc@873 661 string (Int.toString i),
adamc@873 662 string ";",
adamc@873 663 newline,
adamc@873 664 newline,
adamc@873 665 string "struct tm t = {mt->second, mt->minute, mt->hour, mt->day, mt->month, mt->year, 0, 0, -1};",
adamc@873 666 newline,
adamc@876 667 string "mktime(&t);",
adamc@873 668 newline,
adamc@873 669 string "})"]
adamc@873 670 | _ => box [string "buffer",
adamc@873 671 string (Int.toString i)]
adamc@873 672 in
adamc@873 673 case t of
adamc@873 674 Nullable t => box [string "(is_null",
adamc@873 675 string (Int.toString i),
adamc@873 676 string " ? NULL : ",
adamc@873 677 case t of
adamc@873 678 String => getter t
adamc@873 679 | _ => box [string "({",
adamc@873 680 newline,
adamc@873 681 string (p_sql_ctype t),
adamc@873 682 space,
adamc@873 683 string "*tmp = uw_malloc(ctx, sizeof(",
adamc@873 684 string (p_sql_ctype t),
adamc@873 685 string "));",
adamc@873 686 newline,
adamc@873 687 string "*tmp = ",
adamc@873 688 getter t,
adamc@873 689 string ";",
adamc@873 690 newline,
adamc@873 691 string "tmp;",
adamc@873 692 newline,
adamc@873 693 string "})"],
adamc@873 694 string ")"]
adamc@873 695 | _ => box [string "(is_null",
adamc@873 696 string (Int.toString i),
adamc@873 697 string " ? ",
adamc@873 698 box [string "({",
adamc@873 699 string (p_sql_ctype t),
adamc@873 700 space,
adamc@873 701 string "tmp;",
adamc@873 702 newline,
adamc@873 703 string "uw_error(ctx, FATAL, \"Unexpectedly NULL field #",
adamc@873 704 string (Int.toString i),
adamc@873 705 string "\");",
adamc@873 706 newline,
adamc@873 707 string "tmp;",
adamc@873 708 newline,
adamc@873 709 string "})"],
adamc@873 710 string " : ",
adamc@873 711 getter t,
adamc@873 712 string ")"]
adamc@873 713 end
adamc@873 714
adamc@873 715 fun queryCommon {loc, query, cols, doCols} =
adamc@873 716 box [string "int n, r;",
adamc@873 717 newline,
adamc@873 718 string "MYSQL_BIND out[",
adamc@873 719 string (Int.toString (length cols)),
adamc@873 720 string "];",
adamc@873 721 newline,
adamc@873 722 p_list_sepi (box []) (fn i => fn t =>
adamc@873 723 let
adamc@873 724 fun buffers t =
adamc@873 725 case t of
adamc@873 726 String => box [string "unsigned long length",
adamc@873 727 string (Int.toString i),
adamc@873 728 string ";",
adamc@873 729 newline]
adamc@873 730 | Blob => box [string "unsigned long length",
adamc@873 731 string (Int.toString i),
adamc@873 732 string ";",
adamc@873 733 newline]
adamc@876 734 | Time => box [string "MYSQL_TIME buffer",
adamc@876 735 string (Int.toString i),
adamc@876 736 string ";",
adamc@876 737 newline]
adamc@873 738 | _ => box [string (p_sql_ctype t),
adamc@873 739 space,
adamc@873 740 string "buffer",
adamc@873 741 string (Int.toString i),
adamc@873 742 string ";",
adamc@873 743 newline]
adamc@873 744 in
adamc@873 745 box [string "my_bool is_null",
adamc@873 746 string (Int.toString i),
adamc@873 747 string ";",
adamc@873 748 newline,
adamc@873 749 case t of
adamc@873 750 Nullable t => buffers t
adamc@873 751 | _ => buffers t,
adamc@873 752 newline]
adamc@873 753 end) cols,
adamc@873 754 newline,
adamc@873 755
adamc@873 756 string "memset(out, 0, sizeof out);",
adamc@873 757 newline,
adamc@873 758 p_list_sepi (box []) (fn i => fn t =>
adamc@873 759 let
adamc@873 760 fun buffers t =
adamc@873 761 case t of
adamc@875 762 String => box [string "out[",
adamc@875 763 string (Int.toString i),
adamc@875 764 string "].length = &length",
adamc@875 765 string (Int.toString i),
adamc@875 766 string ";",
adamc@875 767 newline]
adamc@875 768 | Blob => box [string "out[",
adamc@875 769 string (Int.toString i),
adamc@875 770 string "].length = &length",
adamc@875 771 string (Int.toString i),
adamc@875 772 string ";",
adamc@875 773 newline]
adamc@873 774 | _ => box [string "out[",
adamc@873 775 string (Int.toString i),
adamc@873 776 string "].buffer = &buffer",
adamc@873 777 string (Int.toString i),
adamc@873 778 string ";",
adamc@873 779 newline]
adamc@873 780 in
adamc@873 781 box [string "out[",
adamc@873 782 string (Int.toString i),
adamc@873 783 string "].buffer_type = ",
adamc@873 784 string (p_buffer_type t),
adamc@873 785 string ";",
adamc@873 786 newline,
adamc@873 787 string "out[",
adamc@873 788 string (Int.toString i),
adamc@873 789 string "].is_null = &is_null",
adamc@873 790 string (Int.toString i),
adamc@873 791 string ";",
adamc@873 792 newline,
adamc@873 793
adamc@873 794 case t of
adamc@873 795 Nullable t => buffers t
adamc@873 796 | _ => buffers t,
adamc@873 797 newline]
adamc@873 798 end) cols,
adamc@873 799 newline,
adamc@873 800
adamc@875 801 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 802 string (ErrorMsg.spanToString loc),
adamc@875 803 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 804 query,
adamc@875 805 string ", mysql_error(conn->conn));",
adamc@875 806 newline,
adamc@875 807 newline,
adamc@875 808
adamc@873 809 string "if (mysql_stmt_execute(stmt)) uw_error(ctx, FATAL, \"",
adamc@873 810 string (ErrorMsg.spanToString loc),
adamc@875 811 string ": Error executing query: %s\\n%s\", ",
adamc@875 812 query,
adamc@875 813 string ", mysql_error(conn->conn));",
adamc@875 814 newline,
adamc@875 815 newline,
adamc@875 816
adamc@875 817 string "if (mysql_stmt_bind_result(stmt, out)) uw_error(ctx, FATAL, \"",
adamc@875 818 string (ErrorMsg.spanToString loc),
adamc@875 819 string ": Error binding query result: %s\\n%s\", ",
adamc@875 820 query,
adamc@875 821 string ", mysql_error(conn->conn));",
adamc@873 822 newline,
adamc@873 823 newline,
adamc@873 824
adamc@873 825 string "if (mysql_stmt_store_result(stmt)) uw_error(ctx, FATAL, \"",
adamc@873 826 string (ErrorMsg.spanToString loc),
adamc@875 827 string ": Error storing query result: %s\\n%s\", ",
adamc@875 828 query,
adamc@875 829 string ", mysql_error(conn->conn));",
adamc@873 830 newline,
adamc@873 831 newline,
adamc@873 832
adamc@873 833 string "uw_end_region(ctx);",
adamc@873 834 newline,
adamc@875 835 string "while (1) {",
adamc@875 836 newline,
adamc@875 837 string "r = mysql_stmt_fetch(stmt);",
adamc@875 838 newline,
adamc@875 839 string "if (r != 0 && r != MYSQL_DATA_TRUNCATED) break;",
adamc@873 840 newline,
adamc@873 841 doCols p_getcol,
adamc@873 842 string "}",
adamc@873 843 newline,
adamc@873 844 newline,
adamc@873 845
adamc@874 846 string "if (r == 1) uw_error(ctx, FATAL, \"",
adamc@873 847 string (ErrorMsg.spanToString loc),
adamc@875 848 string ": query result fetching failed: %s\\n%s\", ",
adamc@875 849 query,
adamc@875 850 string ", mysql_error(conn->conn));",
adamc@875 851 newline,
adamc@875 852 newline,
adamc@875 853
adamc@875 854 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 855 string (ErrorMsg.spanToString loc),
adamc@875 856 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 857 query,
adamc@875 858 string ", mysql_error(conn->conn));",
adamc@875 859 newline,
adamc@875 860 newline]
adamc@873 861
adamc@873 862 fun query {loc, cols, doCols} =
adamc@873 863 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 864 newline,
adamc@876 865 string "MYSQL_STMT *stmt = mysql_stmt_init(conn->conn);",
adamc@873 866 newline,
adamc@875 867 string "if (stmt == NULL) uw_error(ctx, FATAL, \"",
adamc@873 868 string (ErrorMsg.spanToString loc),
adamc@873 869 string ": can't allocate temporary prepared statement\");",
adamc@873 870 newline,
adamc@873 871 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@873 872 newline,
adamc@873 873 string "if (mysql_stmt_prepare(stmt, query, strlen(query))) uw_error(ctx, FATAL, \"",
adamc@873 874 string (ErrorMsg.spanToString loc),
adamc@875 875 string ": error preparing statement: %s\\n%s\", query, mysql_error(conn->conn));",
adamc@873 876 newline,
adamc@873 877 newline,
adamc@873 878
adamc@873 879 queryCommon {loc = loc, cols = cols, doCols = doCols, query = string "query"},
adamc@873 880
adamc@873 881 string "uw_pop_cleanup(ctx);",
adamc@873 882 newline]
adamc@873 883
adamc@879 884 fun queryPrepared {loc, id, query, inputs, cols, doCols, nested} =
adamc@873 885 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 886 newline,
adamc@873 887 string "MYSQL_BIND in[",
adamc@873 888 string (Int.toString (length inputs)),
adamc@873 889 string "];",
adamc@873 890 newline,
adamc@873 891 p_list_sepi (box []) (fn i => fn t =>
adamc@873 892 let
adamc@873 893 fun buffers t =
adamc@873 894 case t of
adamc@873 895 String => box [string "unsigned long in_length",
adamc@873 896 string (Int.toString i),
adamc@873 897 string ";",
adamc@873 898 newline]
adamc@873 899 | Blob => box [string "unsigned long in_length",
adamc@873 900 string (Int.toString i),
adamc@873 901 string ";",
adamc@873 902 newline]
adamc@876 903 | Time => box [string "MYSQL_TIME in_buffer",
adamc@873 904 string (Int.toString i),
adamc@873 905 string ";",
adamc@873 906 newline]
adamc@873 907 | _ => box []
adamc@873 908 in
adamc@873 909 box [case t of
adamc@873 910 Nullable t => box [string "my_bool in_is_null",
adamc@873 911 string (Int.toString i),
adamc@873 912 string ";",
adamc@873 913 newline,
adamc@873 914 buffers t]
adamc@873 915 | _ => buffers t,
adamc@873 916 newline]
adamc@873 917 end) inputs,
adamc@873 918
adamc@879 919 if nested then
adamc@879 920 box [string "MYSQL_STMT *stmt;",
adamc@879 921 newline]
adamc@879 922 else
adamc@879 923 box [string "MYSQL_STMT *stmt = conn->p",
adamc@879 924 string (Int.toString id),
adamc@879 925 string ";",
adamc@879 926 newline,
adamc@879 927 newline,
adamc@879 928
adamc@879 929 string "if (stmt == NULL) {",
adamc@879 930 newline],
adamc@879 931
adamc@878 932 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 933 newline,
adamc@878 934 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 935 newline,
adamc@879 936 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@878 937 string "if (mysql_stmt_prepare(stmt, \"",
adamc@878 938 string (String.toString query),
adamc@878 939 string "\", ",
adamc@878 940 string (Int.toString (size query)),
adamc@878 941 string ")) {",
adamc@878 942 newline,
adamc@878 943 box [string "char msg[1024];",
adamc@878 944 newline,
adamc@878 945 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 946 newline,
adamc@878 947 string "msg[1023] = 0;",
adamc@878 948 newline,
adamc@878 949 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 950 newline],
adamc@878 951 string "}",
adamc@878 952 newline,
adamc@879 953 if nested then
adamc@879 954 box []
adamc@879 955 else
adamc@879 956 box [string "conn->p",
adamc@879 957 string (Int.toString id),
adamc@879 958 string " = stmt;",
adamc@879 959 newline]],
adamc@879 960 if nested then
adamc@879 961 box []
adamc@879 962 else
adamc@879 963 box [string "}",
adamc@879 964 newline],
adamc@878 965 newline,
adamc@878 966
adamc@873 967 string "memset(in, 0, sizeof in);",
adamc@873 968 newline,
adamc@873 969 p_list_sepi (box []) (fn i => fn t =>
adamc@873 970 let
adamc@873 971 fun buffers t =
adamc@873 972 case t of
adamc@873 973 String => box [string "in[",
adamc@873 974 string (Int.toString i),
adamc@873 975 string "].buffer = arg",
adamc@873 976 string (Int.toString (i + 1)),
adamc@873 977 string ";",
adamc@873 978 newline,
adamc@873 979 string "in_length",
adamc@873 980 string (Int.toString i),
adamc@873 981 string "= in[",
adamc@873 982 string (Int.toString i),
adamc@873 983 string "].buffer_length = strlen(arg",
adamc@873 984 string (Int.toString (i + 1)),
adamc@873 985 string ");",
adamc@873 986 newline,
adamc@873 987 string "in[",
adamc@873 988 string (Int.toString i),
adamc@873 989 string "].length = &in_length",
adamc@873 990 string (Int.toString i),
adamc@873 991 string ";",
adamc@873 992 newline]
adamc@873 993 | Blob => box [string "in[",
adamc@873 994 string (Int.toString i),
adamc@873 995 string "].buffer = arg",
adamc@873 996 string (Int.toString (i + 1)),
adamc@873 997 string ".data;",
adamc@873 998 newline,
adamc@873 999 string "in_length",
adamc@873 1000 string (Int.toString i),
adamc@873 1001 string "= in[",
adamc@873 1002 string (Int.toString i),
adamc@873 1003 string "].buffer_length = arg",
adamc@873 1004 string (Int.toString (i + 1)),
adamc@873 1005 string ".size;",
adamc@873 1006 newline,
adamc@873 1007 string "in[",
adamc@873 1008 string (Int.toString i),
adamc@873 1009 string "].length = &in_length",
adamc@873 1010 string (Int.toString i),
adamc@873 1011 string ";",
adamc@873 1012 newline]
adamc@873 1013 | Time =>
adamc@873 1014 let
adamc@873 1015 fun oneField dst src =
adamc@873 1016 box [string "in_buffer",
adamc@873 1017 string (Int.toString i),
adamc@873 1018 string ".",
adamc@873 1019 string dst,
adamc@873 1020 string " = tms.tm_",
adamc@873 1021 string src,
adamc@873 1022 string ";",
adamc@873 1023 newline]
adamc@873 1024 in
adamc@873 1025 box [string "({",
adamc@873 1026 newline,
adamc@873 1027 string "struct tm tms;",
adamc@873 1028 newline,
adamc@873 1029 string "if (localtime_r(&arg",
adamc@873 1030 string (Int.toString (i + 1)),
adamc@873 1031 string ", &tm) == NULL) uw_error(\"",
adamc@873 1032 string (ErrorMsg.spanToString loc),
adamc@873 1033 string ": error converting to MySQL time\");",
adamc@873 1034 newline,
adamc@873 1035 oneField "year" "year",
adamc@873 1036 oneField "month" "mon",
adamc@873 1037 oneField "day" "mday",
adamc@873 1038 oneField "hour" "hour",
adamc@873 1039 oneField "minute" "min",
adamc@873 1040 oneField "second" "sec",
adamc@873 1041 newline,
adamc@873 1042 string "in[",
adamc@873 1043 string (Int.toString i),
adamc@873 1044 string "].buffer = &in_buffer",
adamc@873 1045 string (Int.toString i),
adamc@873 1046 string ";",
adamc@873 1047 newline]
adamc@873 1048 end
adamc@873 1049
adamc@873 1050 | _ => box [string "in[",
adamc@873 1051 string (Int.toString i),
adamc@873 1052 string "].buffer = &arg",
adamc@873 1053 string (Int.toString (i + 1)),
adamc@873 1054 string ";",
adamc@873 1055 newline]
adamc@873 1056 in
adamc@873 1057 box [string "in[",
adamc@873 1058 string (Int.toString i),
adamc@873 1059 string "].buffer_type = ",
adamc@873 1060 string (p_buffer_type t),
adamc@873 1061 string ";",
adamc@873 1062 newline,
adamc@873 1063
adamc@873 1064 case t of
adamc@873 1065 Nullable t => box [string "in[",
adamc@873 1066 string (Int.toString i),
adamc@873 1067 string "].is_null = &in_is_null",
adamc@873 1068 string (Int.toString i),
adamc@873 1069 string ";",
adamc@873 1070 newline,
adamc@873 1071 string "if (arg",
adamc@873 1072 string (Int.toString (i + 1)),
adamc@873 1073 string " == NULL) {",
adamc@873 1074 newline,
adamc@873 1075 box [string "in_is_null",
adamc@873 1076 string (Int.toString i),
adamc@873 1077 string " = 1;",
adamc@873 1078 newline],
adamc@873 1079 string "} else {",
adamc@873 1080 box [case t of
adamc@873 1081 String => box []
adamc@873 1082 | _ =>
adamc@873 1083 box [string (p_sql_ctype t),
adamc@873 1084 space,
adamc@876 1085 string "tmp = *arg",
adamc@876 1086 string (Int.toString (i + 1)),
adamc@876 1087 string ";",
adamc@876 1088 newline,
adamc@876 1089 string (p_sql_ctype t),
adamc@876 1090 space,
adamc@873 1091 string "arg",
adamc@873 1092 string (Int.toString (i + 1)),
adamc@876 1093 string " = tmp;",
adamc@873 1094 newline],
adamc@873 1095 string "in_is_null",
adamc@873 1096 string (Int.toString i),
adamc@873 1097 string " = 0;",
adamc@873 1098 newline,
adamc@873 1099 buffers t,
adamc@876 1100 newline],
adamc@876 1101 string "}",
adamc@876 1102 newline]
adamc@873 1103
adamc@873 1104 | _ => buffers t,
adamc@873 1105 newline]
adamc@873 1106 end) inputs,
adamc@873 1107 newline,
adamc@873 1108
adamc@875 1109 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1110 string (ErrorMsg.spanToString loc),
adamc@875 1111 string ": error binding parameters\");",
adamc@875 1112 newline,
adamc@875 1113
adamc@873 1114 queryCommon {loc = loc, cols = cols, doCols = doCols, query = box [string "\"",
adamc@873 1115 string (String.toString query),
adamc@879 1116 string "\""]},
adamc@879 1117
adamc@879 1118 if nested then
adamc@879 1119 box [string "uw_pop_cleanup(ctx);",
adamc@879 1120 newline]
adamc@879 1121 else
adamc@879 1122 box []]
adamc@873 1123
adamc@875 1124 fun dmlCommon {loc, dml} =
adamc@875 1125 box [string "if (mysql_stmt_execute(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 1126 string (ErrorMsg.spanToString loc),
adamc@875 1127 string ": Error executing DML: %s\\n%s\", ",
adamc@875 1128 dml,
adamc@875 1129 string ", mysql_error(conn->conn));",
adamc@875 1130 newline,
adamc@875 1131 newline]
adamc@875 1132
adamc@875 1133 fun dml loc =
adamc@875 1134 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1135 newline,
adamc@875 1136 string "MYSQL_stmt *stmt = mysql_stmt_init(conn->conn);",
adamc@875 1137 newline,
adamc@875 1138 string "if (stmt == NULL) uw_error(ctx, \"",
adamc@875 1139 string (ErrorMsg.spanToString loc),
adamc@875 1140 string ": can't allocate temporary prepared statement\");",
adamc@875 1141 newline,
adamc@875 1142 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@875 1143 newline,
adamc@875 1144 string "if (mysql_stmt_prepare(stmt, dml, strlen(dml))) uw_error(ctx, FATAL, \"",
adamc@875 1145 string (ErrorMsg.spanToString loc),
adamc@875 1146 string ": error preparing statement: %s\\n%s\", dml, mysql_error(conn->conn));",
adamc@875 1147 newline,
adamc@875 1148 newline,
adamc@875 1149
adamc@875 1150 dmlCommon {loc = loc, dml = string "dml"},
adamc@875 1151
adamc@875 1152 string "uw_pop_cleanup(ctx);",
adamc@875 1153 newline]
adamc@875 1154
adamc@875 1155 fun dmlPrepared {loc, id, dml, inputs} =
adamc@875 1156 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1157 newline,
adamc@875 1158 string "MYSQL_BIND in[",
adamc@875 1159 string (Int.toString (length inputs)),
adamc@875 1160 string "];",
adamc@875 1161 newline,
adamc@875 1162 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1163 let
adamc@875 1164 fun buffers t =
adamc@875 1165 case t of
adamc@875 1166 String => box [string "unsigned long in_length",
adamc@875 1167 string (Int.toString i),
adamc@875 1168 string ";",
adamc@875 1169 newline]
adamc@875 1170 | Blob => box [string "unsigned long in_length",
adamc@875 1171 string (Int.toString i),
adamc@875 1172 string ";",
adamc@875 1173 newline]
adamc@876 1174 | Time => box [string "MYSQL_TIME in_buffer",
adamc@875 1175 string (Int.toString i),
adamc@875 1176 string ";",
adamc@875 1177 newline]
adamc@875 1178 | _ => box []
adamc@875 1179 in
adamc@875 1180 box [case t of
adamc@875 1181 Nullable t => box [string "my_bool in_is_null",
adamc@875 1182 string (Int.toString i),
adamc@875 1183 string ";",
adamc@875 1184 newline,
adamc@875 1185 buffers t]
adamc@875 1186 | _ => buffers t,
adamc@875 1187 newline]
adamc@875 1188 end) inputs,
adamc@875 1189 string "MYSQL_STMT *stmt = conn->p",
adamc@875 1190 string (Int.toString id),
adamc@875 1191 string ";",
adamc@875 1192 newline,
adamc@875 1193 newline,
adamc@875 1194
adamc@878 1195 string "if (stmt == NULL) {",
adamc@878 1196 newline,
adamc@878 1197 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 1198 newline,
adamc@878 1199 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 1200 newline,
adamc@878 1201 string "if (mysql_stmt_prepare(stmt, \"",
adamc@878 1202 string (String.toString dml),
adamc@878 1203 string "\", ",
adamc@878 1204 string (Int.toString (size dml)),
adamc@878 1205 string ")) {",
adamc@878 1206 newline,
adamc@878 1207 box [string "char msg[1024];",
adamc@878 1208 newline,
adamc@878 1209 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 1210 newline,
adamc@878 1211 string "msg[1023] = 0;",
adamc@878 1212 newline,
adamc@878 1213 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 1214 newline],
adamc@878 1215 string "}",
adamc@878 1216 newline,
adamc@878 1217 string "conn->p",
adamc@878 1218 string (Int.toString id),
adamc@878 1219 string " = stmt;",
adamc@878 1220 newline],
adamc@878 1221 string "}",
adamc@878 1222 newline,
adamc@878 1223 newline,
adamc@878 1224
adamc@875 1225 string "memset(in, 0, sizeof in);",
adamc@875 1226 newline,
adamc@875 1227 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1228 let
adamc@875 1229 fun buffers t =
adamc@875 1230 case t of
adamc@875 1231 String => box [string "in[",
adamc@875 1232 string (Int.toString i),
adamc@875 1233 string "].buffer = arg",
adamc@875 1234 string (Int.toString (i + 1)),
adamc@875 1235 string ";",
adamc@875 1236 newline,
adamc@875 1237 string "in_length",
adamc@875 1238 string (Int.toString i),
adamc@875 1239 string "= in[",
adamc@875 1240 string (Int.toString i),
adamc@875 1241 string "].buffer_length = strlen(arg",
adamc@875 1242 string (Int.toString (i + 1)),
adamc@875 1243 string ");",
adamc@875 1244 newline,
adamc@875 1245 string "in[",
adamc@875 1246 string (Int.toString i),
adamc@875 1247 string "].length = &in_length",
adamc@875 1248 string (Int.toString i),
adamc@875 1249 string ";",
adamc@875 1250 newline]
adamc@875 1251 | Blob => box [string "in[",
adamc@875 1252 string (Int.toString i),
adamc@875 1253 string "].buffer = arg",
adamc@875 1254 string (Int.toString (i + 1)),
adamc@875 1255 string ".data;",
adamc@875 1256 newline,
adamc@875 1257 string "in_length",
adamc@875 1258 string (Int.toString i),
adamc@875 1259 string "= in[",
adamc@875 1260 string (Int.toString i),
adamc@875 1261 string "].buffer_length = arg",
adamc@875 1262 string (Int.toString (i + 1)),
adamc@875 1263 string ".size;",
adamc@875 1264 newline,
adamc@875 1265 string "in[",
adamc@875 1266 string (Int.toString i),
adamc@875 1267 string "].length = &in_length",
adamc@875 1268 string (Int.toString i),
adamc@875 1269 string ";",
adamc@875 1270 newline]
adamc@875 1271 | Time =>
adamc@875 1272 let
adamc@875 1273 fun oneField dst src =
adamc@875 1274 box [string "in_buffer",
adamc@875 1275 string (Int.toString i),
adamc@875 1276 string ".",
adamc@875 1277 string dst,
adamc@875 1278 string " = tms.tm_",
adamc@875 1279 string src,
adamc@875 1280 string ";",
adamc@875 1281 newline]
adamc@875 1282 in
adamc@875 1283 box [string "({",
adamc@875 1284 newline,
adamc@875 1285 string "struct tm tms;",
adamc@875 1286 newline,
adamc@875 1287 string "if (localtime_r(&arg",
adamc@875 1288 string (Int.toString (i + 1)),
adamc@875 1289 string ", &tm) == NULL) uw_error(\"",
adamc@875 1290 string (ErrorMsg.spanToString loc),
adamc@875 1291 string ": error converting to MySQL time\");",
adamc@875 1292 newline,
adamc@875 1293 oneField "year" "year",
adamc@875 1294 oneField "month" "mon",
adamc@875 1295 oneField "day" "mday",
adamc@875 1296 oneField "hour" "hour",
adamc@875 1297 oneField "minute" "min",
adamc@875 1298 oneField "second" "sec",
adamc@875 1299 newline,
adamc@875 1300 string "in[",
adamc@875 1301 string (Int.toString i),
adamc@875 1302 string "].buffer = &in_buffer",
adamc@875 1303 string (Int.toString i),
adamc@875 1304 string ";",
adamc@875 1305 newline]
adamc@875 1306 end
adamc@875 1307
adamc@875 1308 | _ => box [string "in[",
adamc@875 1309 string (Int.toString i),
adamc@875 1310 string "].buffer = &arg",
adamc@875 1311 string (Int.toString (i + 1)),
adamc@875 1312 string ";",
adamc@875 1313 newline]
adamc@875 1314 in
adamc@875 1315 box [string "in[",
adamc@875 1316 string (Int.toString i),
adamc@875 1317 string "].buffer_type = ",
adamc@875 1318 string (p_buffer_type t),
adamc@875 1319 string ";",
adamc@875 1320 newline,
adamc@875 1321
adamc@875 1322 case t of
adamc@875 1323 Nullable t => box [string "in[",
adamc@875 1324 string (Int.toString i),
adamc@875 1325 string "].is_null = &in_is_null",
adamc@875 1326 string (Int.toString i),
adamc@875 1327 string ";",
adamc@875 1328 newline,
adamc@875 1329 string "if (arg",
adamc@875 1330 string (Int.toString (i + 1)),
adamc@875 1331 string " == NULL) {",
adamc@875 1332 newline,
adamc@875 1333 box [string "in_is_null",
adamc@875 1334 string (Int.toString i),
adamc@875 1335 string " = 1;",
adamc@875 1336 newline],
adamc@875 1337 string "} else {",
adamc@875 1338 box [case t of
adamc@875 1339 String => box []
adamc@875 1340 | _ =>
adamc@875 1341 box [string (p_sql_ctype t),
adamc@875 1342 space,
adamc@876 1343 string "tmp = *arg",
adamc@876 1344 string (Int.toString (i + 1)),
adamc@876 1345 string ";",
adamc@876 1346 newline,
adamc@876 1347 string (p_sql_ctype t),
adamc@876 1348 space,
adamc@875 1349 string "arg",
adamc@875 1350 string (Int.toString (i + 1)),
adamc@876 1351 string " = tmp;",
adamc@875 1352 newline],
adamc@875 1353 string "in_is_null",
adamc@875 1354 string (Int.toString i),
adamc@875 1355 string " = 0;",
adamc@875 1356 newline,
adamc@875 1357 buffers t,
adamc@876 1358 newline],
adamc@876 1359 string "}",
adamc@876 1360 newline]
adamc@875 1361
adamc@875 1362 | _ => buffers t,
adamc@875 1363 newline]
adamc@875 1364 end) inputs,
adamc@875 1365 newline,
adamc@875 1366
adamc@875 1367 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1368 string (ErrorMsg.spanToString loc),
adamc@875 1369 string ": error binding parameters\");",
adamc@875 1370 newline,
adamc@875 1371
adamc@875 1372 dmlCommon {loc = loc, dml = box [string "\"",
adamc@875 1373 string (String.toString dml),
adamc@875 1374 string "\""]}]
adamc@875 1375
adamc@878 1376 fun nextval {loc, seqE, seqName} =
adamc@878 1377 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@878 1378 newline,
adamc@878 1379 string "char *insert = ",
adamc@878 1380 case seqName of
adamc@878 1381 SOME s => string ("\"INSERT INTO " ^ s ^ " VALUES ()\"")
adamc@878 1382 | NONE => box [string "uw_Basis_strcat(ctx, \"INSERT INTO \", uw_Basis_strcat(ctx, ",
adamc@878 1383 seqE,
adamc@878 1384 string ", \" VALUES ()\"))"],
adamc@878 1385 string ";",
adamc@878 1386 newline,
adamc@878 1387 string "char *delete = ",
adamc@878 1388 case seqName of
adamc@878 1389 SOME s => string ("\"DELETE FROM " ^ s ^ "\"")
adamc@878 1390 | NONE => box [string "uw_Basis_strcat(ctx, \"DELETE FROM \", ",
adamc@878 1391 seqE,
adamc@878 1392 string ")"],
adamc@878 1393 string ";",
adamc@878 1394 newline,
adamc@878 1395 newline,
adamc@878 1396
adamc@878 1397 string "if (mysql_query(conn->conn, insert)) uw_error(ctx, FATAL, \"'nextval' INSERT failed\");",
adamc@878 1398 newline,
adamc@878 1399 string "n = mysql_insert_id(conn->conn);",
adamc@878 1400 newline,
adamc@878 1401 string "if (mysql_query(conn->conn, delete)) uw_error(ctx, FATAL, \"'nextval' DELETE failed\");",
adamc@878 1402 newline]
adamc@878 1403
adamc@878 1404 fun nextvalPrepared _ = raise Fail "MySQL.nextvalPrepared called"
adamc@867 1405
adamc@877 1406 fun sqlifyString s = "'" ^ String.translate (fn #"'" => "\\'"
adamc@877 1407 | #"\\" => "\\\\"
adamc@877 1408 | ch =>
adamc@877 1409 if Char.isPrint ch then
adamc@877 1410 str ch
adamc@877 1411 else
adamc@877 1412 (ErrorMsg.error
adamc@877 1413 "Non-printing character found in SQL string literal";
adamc@877 1414 ""))
adamc@877 1415 (String.toString s) ^ "'"
adamc@874 1416
adamc@877 1417 fun p_cast (s, _) = s
adamc@874 1418
adamc@874 1419 fun p_blank _ = "?"
adamc@874 1420
adamc@866 1421 val () = addDbms {name = "mysql",
adamc@866 1422 header = "mysql/mysql.h",
adamc@866 1423 link = "-lmysqlclient",
adamc@867 1424 init = init,
adamc@873 1425 p_sql_type = p_sql_type,
adamc@867 1426 query = query,
adamc@868 1427 queryPrepared = queryPrepared,
adamc@868 1428 dml = dml,
adamc@869 1429 dmlPrepared = dmlPrepared,
adamc@869 1430 nextval = nextval,
adamc@874 1431 nextvalPrepared = nextvalPrepared,
adamc@874 1432 sqlifyString = sqlifyString,
adamc@874 1433 p_cast = p_cast,
adamc@874 1434 p_blank = p_blank,
adamc@877 1435 supportsDeleteAs = false,
adamc@877 1436 createSequence = fn s => "CREATE TABLE " ^ s ^ " (id INTEGER PRIMARY KEY AUTO_INCREMENT)",
adamc@878 1437 textKeysNeedLengths = true,
adamc@879 1438 supportsNextval = false,
adamc@879 1439 supportsNestedPrepared = false}
adamc@866 1440
adamc@866 1441 end