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'ORDER BY RANDOM' (based on a patch from Ron de Bruijn)
author Adam Chlipala <adam@chlipala.net>
date Thu, 02 Feb 2012 11:40:10 -0500
parents 3e7c7e200713
children 59b07fdae1ff
rev   line source
adam@1295 1 (* Copyright (c) 2009-2010, 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
adam@1682 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@1011 39 | Char => "char"
adamc@873 40 | Bool => "bool"
adamc@873 41 | Time => "timestamp"
adamc@873 42 | Blob => "longblob"
adamc@873 43 | Channel => "bigint"
adamc@873 44 | Client => "int"
adamc@873 45 | Nullable t => p_sql_type t
adamc@873 46
adamc@873 47 fun p_buffer_type t =
adamc@873 48 case t of
adamc@873 49 Int => "MYSQL_TYPE_LONGLONG"
adamc@873 50 | Float => "MYSQL_TYPE_DOUBLE"
adamc@873 51 | String => "MYSQL_TYPE_STRING"
adamc@1013 52 | Char => "MYSQL_TYPE_STRING"
adamc@873 53 | Bool => "MYSQL_TYPE_LONG"
adamc@938 54 | Time => "MYSQL_TYPE_TIMESTAMP"
adamc@873 55 | Blob => "MYSQL_TYPE_BLOB"
adamc@873 56 | Channel => "MYSQL_TYPE_LONGLONG"
adamc@873 57 | Client => "MYSQL_TYPE_LONG"
adamc@873 58 | Nullable t => p_buffer_type t
adamc@873 59
adamc@874 60 fun p_sql_type_base t =
adamc@874 61 case t of
adamc@874 62 Int => "bigint"
adamc@874 63 | Float => "double"
adamc@874 64 | String => "longtext"
adamc@1011 65 | Char => "char"
adamc@874 66 | Bool => "tinyint"
adamc@874 67 | Time => "timestamp"
adamc@874 68 | Blob => "longblob"
adamc@874 69 | Channel => "bigint"
adamc@874 70 | Client => "int"
adamc@874 71 | Nullable t => p_sql_type_base t
adamc@874 72
adamc@874 73 val ident = String.translate (fn #"'" => "PRIME"
adamc@874 74 | ch => str ch)
adamc@874 75
adamc@874 76 fun checkRel (table, checkNullable) (s, xts) =
adamc@874 77 let
adamc@874 78 val sl = CharVector.map Char.toLower s
adamc@998 79 val both = "table_name IN ('" ^ sl ^ "', '" ^ s ^ "')"
adamc@874 80
adamc@998 81 val q = "SELECT COUNT(*) FROM information_schema." ^ table ^ " WHERE " ^ both
adamc@874 82
adamc@998 83 val q' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE ",
adamc@998 84 both,
adamc@998 85 " AND (",
adam@1600 86 case String.concatWith " OR "
adam@1600 87 (map (fn (x, t) =>
adam@1600 88 String.concat ["(column_name IN ('uw_",
adam@1600 89 CharVector.map
adam@1600 90 Char.toLower (ident x),
adam@1600 91 "', 'uw_",
adam@1600 92 ident x,
adam@1600 93 "') AND data_type = '",
adam@1600 94 p_sql_type_base t,
adam@1600 95 "'",
adam@1600 96 if checkNullable then
adam@1600 97 (" AND is_nullable = '"
adam@1600 98 ^ (if isNotNull t then
adam@1600 99 "NO"
adam@1600 100 else
adam@1600 101 "YES")
adam@1600 102 ^ "'")
adam@1600 103 else
adam@1600 104 "",
adam@1600 105 ")"]) xts) of
adam@1600 106 "" => "FALSE"
adam@1600 107 | s => s,
adamc@874 108 ")"]
adamc@874 109
adamc@998 110 val q'' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE ",
adamc@998 111 both,
adamc@998 112 " AND column_name LIKE 'uw_%'"]
adamc@874 113 in
adamc@874 114 box [string "if (mysql_query(conn->conn, \"",
adamc@874 115 string q,
adamc@874 116 string "\")) {",
adamc@874 117 newline,
adamc@874 118 box [string "mysql_close(conn->conn);",
adamc@874 119 newline,
adamc@874 120 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 121 string q,
adamc@874 122 string "\");",
adamc@874 123 newline],
adamc@874 124 string "}",
adamc@874 125 newline,
adamc@874 126 newline,
adamc@874 127
adamc@874 128 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 129 newline,
adamc@874 130 box [string "mysql_free_result(res);",
adamc@874 131 newline,
adamc@874 132 string "mysql_close(conn->conn);",
adamc@874 133 newline,
adamc@874 134 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 135 string q,
adamc@874 136 string "\");",
adamc@874 137 newline],
adamc@874 138 string "}",
adamc@874 139 newline,
adamc@874 140 newline,
adamc@874 141
adamc@874 142 string "if (mysql_num_fields(res) != 1) {",
adamc@874 143 newline,
adamc@874 144 box [string "mysql_free_result(res);",
adamc@874 145 newline,
adamc@874 146 string "mysql_close(conn->conn);",
adamc@874 147 newline,
adamc@874 148 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 149 string q,
adamc@874 150 string "\");",
adamc@874 151 newline],
adamc@874 152 string "}",
adamc@874 153 newline,
adamc@874 154 newline,
adamc@874 155
adamc@874 156 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 157 newline,
adamc@874 158 box [string "mysql_free_result(res);",
adamc@874 159 newline,
adamc@874 160 string "mysql_close(conn->conn);",
adamc@874 161 newline,
adamc@874 162 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 163 string q,
adamc@874 164 string "\");",
adamc@874 165 newline],
adamc@874 166 string "}",
adamc@874 167 newline,
adamc@874 168 newline,
adamc@874 169
adamc@874 170 string "if (strcmp(row[0], \"1\")) {",
adamc@874 171 newline,
adamc@874 172 box [string "mysql_free_result(res);",
adamc@874 173 newline,
adamc@874 174 string "mysql_close(conn->conn);",
adamc@874 175 newline,
adamc@874 176 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 177 string s,
adamc@874 178 string "' does not exist.\");",
adamc@874 179 newline],
adamc@874 180 string "}",
adamc@874 181 newline,
adamc@874 182 newline,
adamc@874 183 string "mysql_free_result(res);",
adamc@874 184 newline,
adamc@874 185 newline,
adamc@874 186
adamc@874 187 string "if (mysql_query(conn->conn, \"",
adamc@874 188 string q',
adamc@874 189 string "\")) {",
adamc@874 190 newline,
adamc@874 191 box [string "mysql_close(conn->conn);",
adamc@874 192 newline,
adamc@874 193 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 194 string q',
adamc@874 195 string "\");",
adamc@874 196 newline],
adamc@874 197 string "}",
adamc@874 198 newline,
adamc@874 199 newline,
adamc@874 200
adamc@874 201 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 202 newline,
adamc@874 203 box [string "mysql_free_result(res);",
adamc@874 204 newline,
adamc@874 205 string "mysql_close(conn->conn);",
adamc@874 206 newline,
adamc@874 207 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 208 string q',
adamc@874 209 string "\");",
adamc@874 210 newline],
adamc@874 211 string "}",
adamc@874 212 newline,
adamc@874 213 newline,
adamc@874 214
adamc@874 215 string "if (mysql_num_fields(res) != 1) {",
adamc@874 216 newline,
adamc@874 217 box [string "mysql_free_result(res);",
adamc@874 218 newline,
adamc@874 219 string "mysql_close(conn->conn);",
adamc@874 220 newline,
adamc@874 221 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 222 string q',
adamc@874 223 string "\");",
adamc@874 224 newline],
adamc@874 225 string "}",
adamc@874 226 newline,
adamc@874 227 newline,
adamc@874 228
adamc@874 229 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 230 newline,
adamc@874 231 box [string "mysql_free_result(res);",
adamc@874 232 newline,
adamc@874 233 string "mysql_close(conn->conn);",
adamc@874 234 newline,
adamc@874 235 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 236 string q',
adamc@874 237 string "\");",
adamc@874 238 newline],
adamc@874 239 string "}",
adamc@874 240 newline,
adamc@874 241 newline,
adamc@874 242
adamc@874 243 string "if (strcmp(row[0], \"",
adamc@874 244 string (Int.toString (length xts)),
adamc@874 245 string "\")) {",
adamc@874 246 newline,
adamc@874 247 box [string "mysql_free_result(res);",
adamc@874 248 newline,
adamc@874 249 string "mysql_close(conn->conn);",
adamc@874 250 newline,
adamc@874 251 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 252 string s,
adamc@874 253 string "' has the wrong column types.\");",
adamc@874 254 newline],
adamc@874 255 string "}",
adamc@874 256 newline,
adamc@874 257 newline,
adamc@874 258 string "mysql_free_result(res);",
adamc@874 259 newline,
adamc@874 260 newline,
adam@1682 261
adamc@874 262 string "if (mysql_query(conn->conn, \"",
adamc@874 263 string q'',
adamc@874 264 string "\")) {",
adamc@874 265 newline,
adamc@874 266 box [string "mysql_close(conn->conn);",
adamc@874 267 newline,
adamc@874 268 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@874 269 string q'',
adamc@874 270 string "\");",
adamc@874 271 newline],
adamc@874 272 string "}",
adamc@874 273 newline,
adamc@874 274 newline,
adamc@874 275
adamc@874 276 string "if ((res = mysql_store_result(conn->conn)) == NULL) {",
adamc@874 277 newline,
adamc@874 278 box [string "mysql_free_result(res);",
adamc@874 279 newline,
adamc@874 280 string "mysql_close(conn->conn);",
adamc@874 281 newline,
adamc@874 282 string "uw_error(ctx, FATAL, \"Result store failed:\\n",
adamc@874 283 string q'',
adamc@874 284 string "\");",
adamc@874 285 newline],
adamc@874 286 string "}",
adamc@874 287 newline,
adamc@874 288 newline,
adamc@874 289
adamc@874 290 string "if (mysql_num_fields(res) != 1) {",
adamc@874 291 newline,
adamc@874 292 box [string "mysql_free_result(res);",
adamc@874 293 newline,
adamc@874 294 string "mysql_close(conn->conn);",
adamc@874 295 newline,
adamc@874 296 string "uw_error(ctx, FATAL, \"Bad column count:\\n",
adamc@874 297 string q'',
adamc@874 298 string "\");",
adamc@874 299 newline],
adamc@874 300 string "}",
adamc@874 301 newline,
adamc@874 302 newline,
adamc@874 303
adamc@874 304 string "if ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 305 newline,
adamc@874 306 box [string "mysql_free_result(res);",
adamc@874 307 newline,
adamc@874 308 string "mysql_close(conn->conn);",
adamc@874 309 newline,
adamc@874 310 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 311 string q'',
adamc@874 312 string "\");",
adamc@874 313 newline],
adamc@874 314 string "}",
adamc@874 315 newline,
adamc@874 316 newline,
adamc@874 317
adamc@874 318 string "if (strcmp(row[0], \"",
adamc@874 319 string (Int.toString (length xts)),
adamc@874 320 string "\")) {",
adamc@874 321 newline,
adamc@874 322 box [string "mysql_free_result(res);",
adamc@874 323 newline,
adamc@874 324 string "mysql_close(conn->conn);",
adamc@874 325 newline,
adamc@874 326 string "uw_error(ctx, FATAL, \"Table '",
adamc@874 327 string s,
adamc@874 328 string "' has extra columns.\");",
adamc@874 329 newline],
adamc@874 330 string "}",
adamc@874 331 newline,
adamc@874 332 newline,
adamc@874 333 string "mysql_free_result(res);",
adamc@874 334 newline]
adamc@874 335 end
adamc@874 336
adamc@872 337 fun init {dbstring, prepared = ss, tables, views, sequences} =
adamc@866 338 let
adamc@866 339 val host = ref NONE
adamc@866 340 val user = ref NONE
adamc@866 341 val passwd = ref NONE
adamc@866 342 val db = ref NONE
adamc@866 343 val port = ref NONE
adamc@866 344 val unix_socket = ref NONE
adamc@866 345
adamc@866 346 fun stringOf r = case !r of
adamc@866 347 NONE => string "NULL"
adamc@866 348 | SOME s => box [string "\"",
adam@1656 349 string (Prim.toCString s),
adamc@866 350 string "\""]
adamc@866 351 in
adamc@866 352 app (fn s =>
adamc@866 353 case String.fields (fn ch => ch = #"=") s of
adamc@866 354 [name, value] =>
adamc@866 355 (case name of
adamc@866 356 "host" =>
adamc@866 357 if size value > 0 andalso String.sub (value, 0) = #"/" then
adamc@866 358 unix_socket := SOME value
adamc@866 359 else
adamc@866 360 host := SOME value
adamc@866 361 | "hostaddr" => host := SOME value
adamc@866 362 | "port" => port := Int.fromString value
adamc@866 363 | "dbname" => db := SOME value
adamc@866 364 | "user" => user := SOME value
adamc@866 365 | "password" => passwd := SOME value
adamc@866 366 | _ => ())
adamc@866 367 | _ => ()) (String.tokens Char.isSpace dbstring);
adamc@866 368
adamc@866 369 box [string "typedef struct {",
adamc@866 370 newline,
adamc@866 371 box [string "MYSQL *conn;",
adamc@866 372 newline,
adamc@866 373 p_list_sepi (box [])
adamc@866 374 (fn i => fn _ =>
adamc@866 375 box [string "MYSQL_STMT *p",
adamc@866 376 string (Int.toString i),
adamc@866 377 string ";",
adamc@866 378 newline])
adamc@866 379 ss],
adamc@866 380 string "} uw_conn;",
adamc@866 381 newline,
adamc@866 382 newline,
adamc@866 383
adamc@1094 384 string "static void uw_client_init(void) {",
adamc@874 385 newline,
adamc@879 386 box [string "uw_sqlfmtInt = \"%lld%n\";",
adamc@879 387 newline,
adamc@879 388 string "uw_sqlfmtFloat = \"%g%n\";",
adamc@879 389 newline,
adamc@879 390 string "uw_Estrings = 0;",
adamc@879 391 newline,
adamc@879 392 string "uw_sqlsuffixString = \"\";",
adamc@879 393 newline,
adamc@1011 394 string "uw_sqlsuffixChar = \"\";",
adamc@1011 395 newline,
adamc@879 396 string "uw_sqlsuffixBlob = \"\";",
adamc@879 397 newline,
adamc@879 398 string "uw_sqlfmtUint4 = \"%u%n\";",
adamc@879 399 newline,
adamc@879 400 newline,
adamc@879 401
adamc@879 402 string "if (mysql_library_init(0, NULL, NULL)) {",
adamc@874 403 newline,
adamc@874 404 box [string "fprintf(stderr, \"Could not initialize MySQL library\\n\");",
adamc@874 405 newline,
adamc@874 406 string "exit(1);",
adamc@874 407 newline],
adamc@874 408 string "}",
adamc@874 409 newline],
adamc@874 410 string "}",
adamc@874 411 newline,
adamc@874 412 newline,
adamc@874 413
adamc@866 414 if #persistent (currentProtocol ()) then
adamc@874 415 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@874 416 newline,
adamc@874 417 string "uw_conn *conn = uw_get_db(ctx);",
adamc@874 418 newline,
adamc@874 419 string "MYSQL_RES *res;",
adamc@874 420 newline,
adamc@874 421 string "MYSQL_ROW row;",
adamc@874 422 newline,
adamc@874 423 newline,
adamc@874 424 p_list_sep newline (checkRel ("tables", true)) tables,
adamc@884 425 p_list_sep newline (fn name => checkRel ("tables", true)
adamc@884 426 (name, [("id", Settings.Client)])) sequences,
adamc@874 427 p_list_sep newline (checkRel ("views", false)) views,
adamc@874 428 string "}",
adamc@874 429 newline,
adamc@874 430 newline,
adamc@874 431
adamc@874 432 string "static void uw_db_prepare(uw_context ctx) {",
adamc@866 433 newline,
adamc@866 434 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 435 newline,
adamc@866 436 string "MYSQL_STMT *stmt;",
adamc@866 437 newline,
adamc@866 438 newline,
adamc@866 439
adamc@866 440 p_list_sepi newline (fn i => fn (s, n) =>
adamc@866 441 let
adamc@866 442 fun uhoh this s args =
adamc@866 443 box [p_list_sepi (box [])
adamc@866 444 (fn j => fn () =>
adamc@866 445 box [string
adamc@866 446 "mysql_stmt_close(conn->p",
adamc@866 447 string (Int.toString j),
adamc@866 448 string ");",
adamc@866 449 newline])
adamc@866 450 (List.tabulate (i, fn _ => ())),
adamc@866 451 box (if this then
adamc@866 452 [string
adamc@866 453 "mysql_stmt_close(conn->p",
adamc@866 454 string (Int.toString i),
adamc@866 455 string ");",
adamc@866 456 newline]
adamc@866 457 else
adamc@866 458 []),
adamc@866 459 string "mysql_close(conn->conn);",
adamc@866 460 newline,
adamc@866 461 string "uw_error(ctx, FATAL, \"",
adamc@866 462 string s,
adamc@866 463 string "\"",
adamc@866 464 p_list_sep (box []) (fn s => box [string ", ",
adamc@866 465 string s]) args,
adamc@866 466 string ");",
adamc@866 467 newline]
adamc@866 468 in
adamc@866 469 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@866 470 newline,
adamc@866 471 string "if (stmt == NULL) {",
adamc@866 472 newline,
adamc@866 473 uhoh false "Out of memory allocating prepared statement" [],
adamc@866 474 string "}",
adamc@866 475 newline,
adamc@874 476 string "conn->p",
adamc@874 477 string (Int.toString i),
adamc@874 478 string " = stmt;",
adamc@874 479 newline,
adamc@866 480
adamc@866 481 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 482 string (Prim.toCString s),
adamc@866 483 string "\", ",
adamc@866 484 string (Int.toString (size s)),
adamc@866 485 string ")) {",
adamc@866 486 newline,
adamc@866 487 box [string "char msg[1024];",
adamc@866 488 newline,
adamc@866 489 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@866 490 newline,
adamc@866 491 string "msg[1023] = 0;",
adamc@866 492 newline,
adamc@866 493 uhoh true "Error preparing statement: %s" ["msg"]],
adamc@866 494 string "}",
adamc@866 495 newline]
adamc@866 496 end)
adamc@866 497 ss,
adamc@866 498
adamc@866 499 string "}"]
adamc@866 500 else
adamc@882 501 box [string "static void uw_db_prepare(uw_context ctx) { }",
adamc@882 502 newline,
adamc@882 503 string "static void uw_db_validate(uw_context ctx) { }"],
adamc@866 504 newline,
adamc@866 505 newline,
adam@1682 506
adamc@1094 507 string "static void uw_db_init(uw_context ctx) {",
adamc@866 508 newline,
adamc@866 509 string "MYSQL *mysql = mysql_init(NULL);",
adamc@866 510 newline,
adamc@866 511 string "uw_conn *conn;",
adamc@866 512 newline,
adamc@866 513 string "if (mysql == NULL) uw_error(ctx, FATAL, ",
adamc@866 514 string "\"libmysqlclient can't allocate a connection.\");",
adamc@866 515 newline,
adamc@866 516 string "if (mysql_real_connect(mysql, ",
adamc@866 517 stringOf host,
adamc@866 518 string ", ",
adamc@866 519 stringOf user,
adamc@866 520 string ", ",
adamc@866 521 stringOf passwd,
adamc@866 522 string ", ",
adamc@866 523 stringOf db,
adamc@866 524 string ", ",
adamc@866 525 case !port of
adamc@866 526 NONE => string "0"
adamc@866 527 | SOME n => string (Int.toString n),
adamc@866 528 string ", ",
adamc@866 529 stringOf unix_socket,
adamc@874 530 string ", 0) == NULL) {",
adamc@866 531 newline,
adamc@866 532 box [string "char msg[1024];",
adamc@866 533 newline,
adamc@866 534 string "strncpy(msg, mysql_error(mysql), 1024);",
adamc@866 535 newline,
adamc@866 536 string "msg[1023] = 0;",
adamc@866 537 newline,
adamc@866 538 string "mysql_close(mysql);",
adamc@866 539 newline,
adamc@866 540 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@866 541 string "\"Connection to MySQL server failed: %s\", msg);"],
adamc@866 542 newline,
adamc@866 543 string "}",
adamc@866 544 newline,
adamc@874 545 string "conn = calloc(1, sizeof(uw_conn));",
adamc@866 546 newline,
adamc@866 547 string "conn->conn = mysql;",
adamc@866 548 newline,
adamc@866 549 string "uw_set_db(ctx, conn);",
adamc@866 550 newline,
adamc@866 551 string "uw_db_validate(ctx);",
adamc@866 552 newline,
adamc@866 553 string "uw_db_prepare(ctx);",
adamc@866 554 newline,
adamc@866 555 string "}",
adamc@866 556 newline,
adamc@866 557 newline,
adamc@866 558
adamc@1094 559 string "static void uw_db_close(uw_context ctx) {",
adamc@866 560 newline,
adamc@866 561 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 562 newline,
adamc@866 563 p_list_sepi (box [])
adamc@866 564 (fn i => fn _ =>
adamc@866 565 box [string "if (conn->p",
adamc@866 566 string (Int.toString i),
adamc@866 567 string ") mysql_stmt_close(conn->p",
adamc@866 568 string (Int.toString i),
adamc@866 569 string ");",
adamc@866 570 newline])
adamc@866 571 ss,
adamc@866 572 string "mysql_close(conn->conn);",
adamc@866 573 newline,
adamc@866 574 string "}",
adamc@866 575 newline,
adamc@866 576 newline,
adamc@866 577
adamc@1094 578 string "static int uw_db_begin(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 newline,
adamc@866 583 string "return mysql_query(conn->conn, \"SET TRANSACTION ISOLATION LEVEL SERIALIZABLE\")",
adamc@866 584 newline,
adamc@866 585 string " || mysql_query(conn->conn, \"BEGIN\");",
adamc@866 586 newline,
adamc@866 587 string "}",
adamc@866 588 newline,
adamc@866 589 newline,
adamc@866 590
adamc@1094 591 string "static int uw_db_commit(uw_context ctx) {",
adamc@866 592 newline,
adamc@866 593 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 594 newline,
adamc@866 595 string "return mysql_commit(conn->conn);",
adamc@866 596 newline,
adamc@866 597 string "}",
adamc@866 598 newline,
adamc@866 599 newline,
adamc@866 600
adamc@1094 601 string "static int uw_db_rollback(uw_context ctx) {",
adamc@866 602 newline,
adamc@866 603 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 604 newline,
adamc@866 605 string "return mysql_rollback(conn->conn);",
adamc@866 606 newline,
adamc@866 607 string "}",
adamc@866 608 newline,
adamc@866 609 newline]
adamc@866 610 end
adamc@866 611
adamc@880 612 fun p_getcol {loc, wontLeakStrings = _, col = i, typ = t} =
adamc@873 613 let
adamc@873 614 fun getter t =
adamc@873 615 case t of
adamc@873 616 String => box [string "({",
adamc@873 617 newline,
adamc@873 618 string "uw_Basis_string s = uw_malloc(ctx, length",
adamc@873 619 string (Int.toString i),
adamc@873 620 string " + 1);",
adamc@873 621 newline,
adamc@873 622 string "out[",
adamc@873 623 string (Int.toString i),
adamc@873 624 string "].buffer = s;",
adamc@873 625 newline,
adamc@873 626 string "out[",
adamc@873 627 string (Int.toString i),
adamc@873 628 string "].buffer_length = length",
adamc@873 629 string (Int.toString i),
adamc@873 630 string " + 1;",
adamc@873 631 newline,
adamc@873 632 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 633 string (Int.toString i),
adamc@873 634 string "], ",
adamc@873 635 string (Int.toString i),
adamc@873 636 string ", 0);",
adamc@873 637 newline,
adamc@873 638 string "s[length",
adamc@873 639 string (Int.toString i),
adamc@873 640 string "] = 0;",
adamc@873 641 newline,
adamc@873 642 string "s;",
adamc@873 643 newline,
adamc@873 644 string "})"]
adamc@873 645 | Blob => box [string "({",
adamc@873 646 newline,
adamc@873 647 string "uw_Basis_blob b = {length",
adamc@873 648 string (Int.toString i),
adamc@873 649 string ", uw_malloc(ctx, length",
adamc@873 650 string (Int.toString i),
adamc@873 651 string ")};",
adamc@873 652 newline,
adamc@873 653 string "out[",
adamc@873 654 string (Int.toString i),
adamc@873 655 string "].buffer = b.data;",
adamc@873 656 newline,
adamc@873 657 string "out[",
adamc@873 658 string (Int.toString i),
adamc@873 659 string "].buffer_length = length",
adamc@873 660 string (Int.toString i),
adamc@873 661 string ";",
adamc@873 662 newline,
adamc@873 663 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 664 string (Int.toString i),
adamc@873 665 string "], ",
adamc@873 666 string (Int.toString i),
adamc@873 667 string ", 0);",
adamc@873 668 newline,
adamc@873 669 string "b;",
adamc@873 670 newline,
adamc@873 671 string "})"]
adamc@873 672 | Time => box [string "({",
adamc@876 673 string "MYSQL_TIME *mt = &buffer",
adamc@873 674 string (Int.toString i),
adamc@873 675 string ";",
adamc@873 676 newline,
adamc@873 677 newline,
adamc@938 678 string "struct tm t = {mt->second, mt->minute, mt->hour, mt->day, mt->month-1, mt->year - 1900, 0, 0, -1};",
adamc@873 679 newline,
adam@1443 680 string "uw_Basis_time res = {mktime(&t), 0};",
adam@1443 681 newline,
adam@1443 682 string "res;",
adamc@873 683 newline,
adamc@873 684 string "})"]
adamc@889 685 | Channel => box [string "({",
adamc@889 686 string "uw_Basis_channel ch = {buffer",
adamc@889 687 string (Int.toString i),
adamc@889 688 string " >> 32, buffer",
adamc@889 689 string (Int.toString i),
adamc@889 690 string " & 0xFFFFFFFF};",
adamc@889 691 newline,
adamc@889 692 string "ch;",
adamc@889 693 newline,
adamc@889 694 string "})"]
adamc@873 695 | _ => box [string "buffer",
adamc@873 696 string (Int.toString i)]
adamc@873 697 in
adamc@873 698 case t of
adamc@873 699 Nullable t => box [string "(is_null",
adamc@873 700 string (Int.toString i),
adamc@873 701 string " ? NULL : ",
adamc@873 702 case t of
adamc@873 703 String => getter t
adamc@873 704 | _ => box [string "({",
adamc@873 705 newline,
adamc@873 706 string (p_sql_ctype t),
adamc@873 707 space,
adamc@873 708 string "*tmp = uw_malloc(ctx, sizeof(",
adamc@873 709 string (p_sql_ctype t),
adamc@873 710 string "));",
adamc@873 711 newline,
adamc@873 712 string "*tmp = ",
adamc@873 713 getter t,
adamc@873 714 string ";",
adamc@873 715 newline,
adamc@873 716 string "tmp;",
adamc@873 717 newline,
adamc@873 718 string "})"],
adamc@873 719 string ")"]
adamc@873 720 | _ => box [string "(is_null",
adamc@873 721 string (Int.toString i),
adamc@873 722 string " ? ",
adamc@873 723 box [string "({",
adamc@873 724 string (p_sql_ctype t),
adamc@873 725 space,
adamc@873 726 string "tmp;",
adamc@873 727 newline,
adamc@873 728 string "uw_error(ctx, FATAL, \"Unexpectedly NULL field #",
adamc@873 729 string (Int.toString i),
adamc@873 730 string "\");",
adamc@873 731 newline,
adamc@873 732 string "tmp;",
adamc@873 733 newline,
adamc@873 734 string "})"],
adamc@873 735 string " : ",
adamc@873 736 getter t,
adamc@873 737 string ")"]
adamc@873 738 end
adamc@873 739
adamc@873 740 fun queryCommon {loc, query, cols, doCols} =
adamc@873 741 box [string "int n, r;",
adamc@873 742 newline,
adamc@873 743 string "MYSQL_BIND out[",
adamc@873 744 string (Int.toString (length cols)),
adamc@873 745 string "];",
adamc@873 746 newline,
adamc@873 747 p_list_sepi (box []) (fn i => fn t =>
adamc@873 748 let
adamc@873 749 fun buffers t =
adamc@873 750 case t of
adamc@873 751 String => box [string "unsigned long length",
adamc@873 752 string (Int.toString i),
adamc@873 753 string ";",
adamc@873 754 newline]
adamc@873 755 | Blob => box [string "unsigned long length",
adamc@873 756 string (Int.toString i),
adamc@873 757 string ";",
adamc@873 758 newline]
adamc@876 759 | Time => box [string "MYSQL_TIME buffer",
adamc@876 760 string (Int.toString i),
adamc@876 761 string ";",
adamc@876 762 newline]
adamc@889 763 | Channel => box [string "unsigned long long buffer",
adamc@889 764 string (Int.toString i),
adamc@889 765 string ";",
adamc@889 766 newline]
adamc@873 767 | _ => box [string (p_sql_ctype t),
adamc@873 768 space,
adamc@873 769 string "buffer",
adamc@873 770 string (Int.toString i),
adamc@873 771 string ";",
adamc@873 772 newline]
adamc@873 773 in
adamc@873 774 box [string "my_bool is_null",
adamc@873 775 string (Int.toString i),
adamc@873 776 string ";",
adamc@873 777 newline,
adamc@873 778 case t of
adamc@873 779 Nullable t => buffers t
adamc@873 780 | _ => buffers t,
adamc@873 781 newline]
adamc@873 782 end) cols,
adamc@873 783 newline,
adamc@873 784
adamc@873 785 string "memset(out, 0, sizeof out);",
adamc@873 786 newline,
adamc@873 787 p_list_sepi (box []) (fn i => fn t =>
adamc@873 788 let
adamc@873 789 fun buffers t =
adamc@873 790 case t of
adamc@875 791 String => box [string "out[",
adamc@875 792 string (Int.toString i),
adamc@875 793 string "].length = &length",
adamc@875 794 string (Int.toString i),
adamc@875 795 string ";",
adamc@875 796 newline]
adamc@1013 797 | Char => box [string "out[",
adamc@1013 798 string (Int.toString i),
adamc@1013 799 string "].buffer_length = 1;",
adamc@1013 800 newline,
adamc@1013 801 string "out[",
adamc@1013 802 string (Int.toString i),
adamc@1013 803 string "].buffer = &buffer",
adamc@1013 804 string (Int.toString i),
adamc@1013 805 string ";",
adamc@1013 806 newline]
adamc@875 807 | Blob => box [string "out[",
adamc@875 808 string (Int.toString i),
adamc@875 809 string "].length = &length",
adamc@875 810 string (Int.toString i),
adamc@875 811 string ";",
adamc@875 812 newline]
adamc@873 813 | _ => box [string "out[",
adamc@873 814 string (Int.toString i),
adamc@873 815 string "].buffer = &buffer",
adamc@873 816 string (Int.toString i),
adamc@873 817 string ";",
adamc@873 818 newline]
adamc@873 819 in
adamc@873 820 box [string "out[",
adamc@873 821 string (Int.toString i),
adamc@873 822 string "].buffer_type = ",
adamc@873 823 string (p_buffer_type t),
adamc@873 824 string ";",
adamc@873 825 newline,
adamc@873 826 string "out[",
adamc@873 827 string (Int.toString i),
adamc@873 828 string "].is_null = &is_null",
adamc@873 829 string (Int.toString i),
adamc@873 830 string ";",
adamc@873 831 newline,
adam@1682 832
adamc@873 833 case t of
adamc@873 834 Nullable t => buffers t
adamc@873 835 | _ => buffers t,
adamc@873 836 newline]
adamc@873 837 end) cols,
adamc@873 838 newline,
adamc@873 839
adamc@875 840 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 841 string (ErrorMsg.spanToString loc),
adamc@875 842 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 843 query,
adamc@875 844 string ", mysql_error(conn->conn));",
adamc@875 845 newline,
adamc@875 846 newline,
adamc@875 847
adamc@873 848 string "if (mysql_stmt_execute(stmt)) uw_error(ctx, FATAL, \"",
adamc@873 849 string (ErrorMsg.spanToString loc),
adamc@875 850 string ": Error executing query: %s\\n%s\", ",
adamc@875 851 query,
adamc@875 852 string ", mysql_error(conn->conn));",
adamc@875 853 newline,
adamc@875 854 newline,
adamc@875 855
adamc@875 856 string "if (mysql_stmt_bind_result(stmt, out)) uw_error(ctx, FATAL, \"",
adamc@875 857 string (ErrorMsg.spanToString loc),
adamc@875 858 string ": Error binding query result: %s\\n%s\", ",
adamc@875 859 query,
adamc@875 860 string ", mysql_error(conn->conn));",
adamc@873 861 newline,
adamc@873 862 newline,
adamc@873 863
adamc@873 864 string "if (mysql_stmt_store_result(stmt)) uw_error(ctx, FATAL, \"",
adamc@873 865 string (ErrorMsg.spanToString loc),
adamc@875 866 string ": Error storing query result: %s\\n%s\", ",
adamc@875 867 query,
adamc@875 868 string ", mysql_error(conn->conn));",
adamc@873 869 newline,
adamc@873 870 newline,
adamc@873 871
adamc@873 872 string "uw_end_region(ctx);",
adamc@873 873 newline,
adamc@875 874 string "while (1) {",
adamc@875 875 newline,
adamc@875 876 string "r = mysql_stmt_fetch(stmt);",
adamc@875 877 newline,
adamc@875 878 string "if (r != 0 && r != MYSQL_DATA_TRUNCATED) break;",
adamc@873 879 newline,
adamc@873 880 doCols p_getcol,
adamc@873 881 string "}",
adamc@873 882 newline,
adamc@873 883 newline,
adamc@873 884
adamc@874 885 string "if (r == 1) uw_error(ctx, FATAL, \"",
adamc@873 886 string (ErrorMsg.spanToString loc),
adamc@875 887 string ": query result fetching failed: %s\\n%s\", ",
adamc@875 888 query,
adamc@875 889 string ", mysql_error(conn->conn));",
adamc@875 890 newline,
adamc@875 891 newline,
adamc@875 892
adamc@875 893 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 894 string (ErrorMsg.spanToString loc),
adamc@875 895 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 896 query,
adamc@875 897 string ", mysql_error(conn->conn));",
adamc@875 898 newline,
adamc@875 899 newline]
adamc@873 900
adamc@873 901 fun query {loc, cols, doCols} =
adamc@873 902 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 903 newline,
adamc@876 904 string "MYSQL_STMT *stmt = mysql_stmt_init(conn->conn);",
adamc@873 905 newline,
adamc@875 906 string "if (stmt == NULL) uw_error(ctx, FATAL, \"",
adamc@873 907 string (ErrorMsg.spanToString loc),
adamc@873 908 string ": can't allocate temporary prepared statement\");",
adamc@873 909 newline,
adamc@873 910 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@873 911 newline,
adamc@873 912 string "if (mysql_stmt_prepare(stmt, query, strlen(query))) uw_error(ctx, FATAL, \"",
adamc@873 913 string (ErrorMsg.spanToString loc),
adamc@875 914 string ": error preparing statement: %s\\n%s\", query, mysql_error(conn->conn));",
adamc@873 915 newline,
adamc@873 916 newline,
adamc@873 917
adamc@873 918 queryCommon {loc = loc, cols = cols, doCols = doCols, query = string "query"},
adamc@873 919
adamc@873 920 string "uw_pop_cleanup(ctx);",
adamc@873 921 newline]
adamc@873 922
adamc@879 923 fun queryPrepared {loc, id, query, inputs, cols, doCols, nested} =
adamc@873 924 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 925 newline,
adamc@873 926 string "MYSQL_BIND in[",
adamc@873 927 string (Int.toString (length inputs)),
adamc@873 928 string "];",
adamc@873 929 newline,
adamc@873 930 p_list_sepi (box []) (fn i => fn t =>
adamc@873 931 let
adamc@873 932 fun buffers t =
adamc@873 933 case t of
adamc@873 934 String => box [string "unsigned long in_length",
adamc@873 935 string (Int.toString i),
adamc@873 936 string ";",
adamc@873 937 newline]
adamc@873 938 | Blob => box [string "unsigned long in_length",
adamc@873 939 string (Int.toString i),
adamc@873 940 string ";",
adamc@873 941 newline]
adamc@876 942 | Time => box [string "MYSQL_TIME in_buffer",
adamc@873 943 string (Int.toString i),
adamc@1013 944 string ";",
adamc@1013 945 newline]
adamc@873 946 | _ => box []
adamc@873 947 in
adamc@873 948 box [case t of
adamc@873 949 Nullable t => box [string "my_bool in_is_null",
adamc@873 950 string (Int.toString i),
adamc@873 951 string ";",
adamc@873 952 newline,
adamc@873 953 buffers t]
adamc@873 954 | _ => buffers t,
adamc@873 955 newline]
adamc@873 956 end) inputs,
adamc@873 957
adamc@879 958 if nested then
adamc@879 959 box [string "MYSQL_STMT *stmt;",
adamc@879 960 newline]
adamc@879 961 else
adamc@879 962 box [string "MYSQL_STMT *stmt = conn->p",
adamc@879 963 string (Int.toString id),
adamc@879 964 string ";",
adamc@879 965 newline,
adamc@879 966 newline,
adamc@879 967
adamc@879 968 string "if (stmt == NULL) {",
adamc@879 969 newline],
adamc@879 970
adamc@878 971 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 972 newline,
adamc@878 973 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 974 newline,
adamc@880 975 if nested then
adamc@880 976 box [string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@880 977 newline]
adamc@880 978 else
adamc@880 979 box [],
adamc@878 980 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 981 string (Prim.toCString query),
adamc@878 982 string "\", ",
adamc@878 983 string (Int.toString (size query)),
adamc@878 984 string ")) {",
adamc@878 985 newline,
adamc@878 986 box [string "char msg[1024];",
adamc@878 987 newline,
adamc@878 988 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 989 newline,
adamc@878 990 string "msg[1023] = 0;",
adamc@878 991 newline,
adamc@880 992 if nested then
adamc@880 993 box []
adamc@880 994 else
adamc@880 995 box [string "mysql_stmt_close(stmt);",
adamc@880 996 newline],
adamc@878 997 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 998 newline],
adamc@878 999 string "}",
adamc@878 1000 newline,
adamc@879 1001 if nested then
adamc@879 1002 box []
adamc@879 1003 else
adamc@879 1004 box [string "conn->p",
adamc@879 1005 string (Int.toString id),
adamc@879 1006 string " = stmt;",
adamc@879 1007 newline]],
adamc@879 1008 if nested then
adamc@879 1009 box []
adamc@879 1010 else
adamc@879 1011 box [string "}",
adamc@879 1012 newline],
adamc@878 1013 newline,
adamc@878 1014
adamc@873 1015 string "memset(in, 0, sizeof in);",
adamc@873 1016 newline,
adamc@873 1017 p_list_sepi (box []) (fn i => fn t =>
adamc@873 1018 let
adamc@873 1019 fun buffers t =
adamc@873 1020 case t of
adamc@873 1021 String => box [string "in[",
adamc@873 1022 string (Int.toString i),
adamc@873 1023 string "].buffer = arg",
adamc@873 1024 string (Int.toString (i + 1)),
adamc@873 1025 string ";",
adamc@873 1026 newline,
adamc@873 1027 string "in_length",
adamc@873 1028 string (Int.toString i),
adamc@873 1029 string "= in[",
adamc@873 1030 string (Int.toString i),
adamc@873 1031 string "].buffer_length = strlen(arg",
adamc@873 1032 string (Int.toString (i + 1)),
adamc@873 1033 string ");",
adamc@873 1034 newline,
adamc@873 1035 string "in[",
adamc@873 1036 string (Int.toString i),
adamc@873 1037 string "].length = &in_length",
adamc@873 1038 string (Int.toString i),
adamc@873 1039 string ";",
adamc@873 1040 newline]
adamc@1013 1041 | Char => box [string "in[",
adamc@1013 1042 string (Int.toString i),
adamc@1013 1043 string "].buffer = &arg",
adamc@1013 1044 string (Int.toString (i + 1)),
adamc@1013 1045 string ";",
adamc@1013 1046 newline,
adamc@1013 1047 string "in[",
adamc@1013 1048 string (Int.toString i),
adamc@1013 1049 string "].buffer_length = 1;",
adamc@1013 1050 newline]
adamc@873 1051 | Blob => box [string "in[",
adamc@873 1052 string (Int.toString i),
adamc@873 1053 string "].buffer = arg",
adamc@873 1054 string (Int.toString (i + 1)),
adamc@873 1055 string ".data;",
adamc@873 1056 newline,
adamc@873 1057 string "in_length",
adamc@873 1058 string (Int.toString i),
adamc@873 1059 string "= in[",
adamc@873 1060 string (Int.toString i),
adamc@873 1061 string "].buffer_length = arg",
adamc@873 1062 string (Int.toString (i + 1)),
adamc@873 1063 string ".size;",
adamc@873 1064 newline,
adamc@873 1065 string "in[",
adamc@873 1066 string (Int.toString i),
adamc@873 1067 string "].length = &in_length",
adamc@873 1068 string (Int.toString i),
adamc@873 1069 string ";",
adamc@873 1070 newline]
adamc@873 1071 | Time =>
adamc@873 1072 let
adamc@873 1073 fun oneField dst src =
adamc@873 1074 box [string "in_buffer",
adamc@873 1075 string (Int.toString i),
adamc@873 1076 string ".",
adamc@873 1077 string dst,
adamc@873 1078 string " = tms.tm_",
adamc@873 1079 string src,
adamc@873 1080 string ";",
adamc@873 1081 newline]
adamc@873 1082 in
adamc@873 1083 box [string "({",
adamc@873 1084 newline,
adamc@873 1085 string "struct tm tms;",
adamc@873 1086 newline,
adamc@873 1087 string "if (localtime_r(&arg",
adamc@873 1088 string (Int.toString (i + 1)),
adam@1443 1089 string ".seconds, &tms) == NULL) uw_error(ctx, FATAL, \"",
adamc@873 1090 string (ErrorMsg.spanToString loc),
adamc@873 1091 string ": error converting to MySQL time\");",
adamc@873 1092 newline,
adamc@938 1093 oneField "year" "year + 1900",
adamc@888 1094 box [string "in_buffer",
adamc@888 1095 string (Int.toString i),
adamc@888 1096 string ".month = tms.tm_mon + 1;",
adamc@888 1097 newline],
adamc@873 1098 oneField "day" "mday",
adamc@938 1099 oneField "hour" "hour - 1",
adamc@873 1100 oneField "minute" "min",
adamc@873 1101 oneField "second" "sec",
adamc@873 1102 newline,
adamc@873 1103 string "in[",
adamc@873 1104 string (Int.toString i),
adamc@873 1105 string "].buffer = &in_buffer",
adamc@873 1106 string (Int.toString i),
adamc@873 1107 string ";",
adamc@933 1108 newline,
adamc@933 1109 string "});",
adamc@873 1110 newline]
adamc@873 1111 end
adamc@889 1112 | Channel => box [string "in_buffer",
adamc@889 1113 string (Int.toString i),
adamc@889 1114 string " = ((unsigned long long)arg",
adamc@889 1115 string (Int.toString (i + 1)),
adamc@889 1116 string ".cli << 32) | arg",
adamc@889 1117 string (Int.toString (i + 1)),
adamc@889 1118 string ".chn;",
adamc@889 1119 newline,
adamc@889 1120 string "in[",
adamc@889 1121 string (Int.toString i),
adamc@889 1122 string "].buffer = &in_buffer",
adamc@889 1123 string (Int.toString i),
adamc@889 1124 string ";",
adamc@889 1125 newline]
adam@1682 1126
adamc@873 1127 | _ => box [string "in[",
adamc@873 1128 string (Int.toString i),
adamc@873 1129 string "].buffer = &arg",
adamc@873 1130 string (Int.toString (i + 1)),
adamc@873 1131 string ";",
adamc@873 1132 newline]
adamc@873 1133 in
adamc@873 1134 box [string "in[",
adamc@873 1135 string (Int.toString i),
adamc@873 1136 string "].buffer_type = ",
adamc@873 1137 string (p_buffer_type t),
adamc@873 1138 string ";",
adamc@873 1139 newline,
adam@1682 1140
adamc@873 1141 case t of
adamc@873 1142 Nullable t => box [string "in[",
adamc@873 1143 string (Int.toString i),
adamc@873 1144 string "].is_null = &in_is_null",
adamc@873 1145 string (Int.toString i),
adamc@873 1146 string ";",
adamc@873 1147 newline,
adamc@873 1148 string "if (arg",
adamc@873 1149 string (Int.toString (i + 1)),
adamc@873 1150 string " == NULL) {",
adamc@873 1151 newline,
adamc@873 1152 box [string "in_is_null",
adamc@873 1153 string (Int.toString i),
adamc@873 1154 string " = 1;",
adamc@873 1155 newline],
adamc@873 1156 string "} else {",
adamc@873 1157 box [case t of
adamc@873 1158 String => box []
adamc@873 1159 | _ =>
adamc@873 1160 box [string (p_sql_ctype t),
adamc@873 1161 space,
adamc@876 1162 string "tmp = *arg",
adamc@876 1163 string (Int.toString (i + 1)),
adamc@876 1164 string ";",
adamc@876 1165 newline,
adamc@876 1166 string (p_sql_ctype t),
adamc@876 1167 space,
adamc@873 1168 string "arg",
adamc@873 1169 string (Int.toString (i + 1)),
adamc@876 1170 string " = tmp;",
adamc@873 1171 newline],
adamc@873 1172 string "in_is_null",
adamc@873 1173 string (Int.toString i),
adamc@873 1174 string " = 0;",
adamc@873 1175 newline,
adamc@873 1176 buffers t,
adamc@876 1177 newline],
adamc@876 1178 string "}",
adamc@876 1179 newline]
adam@1682 1180
adamc@873 1181 | _ => buffers t,
adamc@873 1182 newline]
adamc@873 1183 end) inputs,
adamc@873 1184 newline,
adamc@873 1185
adamc@875 1186 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1187 string (ErrorMsg.spanToString loc),
adamc@875 1188 string ": error binding parameters\");",
adamc@875 1189 newline,
adamc@875 1190
adamc@873 1191 queryCommon {loc = loc, cols = cols, doCols = doCols, query = box [string "\"",
adam@1656 1192 string (Prim.toCString query),
adamc@879 1193 string "\""]},
adamc@879 1194
adamc@879 1195 if nested then
adamc@879 1196 box [string "uw_pop_cleanup(ctx);",
adamc@879 1197 newline]
adamc@879 1198 else
adamc@879 1199 box []]
adamc@873 1200
adam@1293 1201 fun dmlCommon {loc, dml, mode} =
adam@1293 1202 box [string "if (mysql_stmt_execute(stmt)) ",
adam@1293 1203 case mode of
adam@1293 1204 Settings.Error => box [string "uw_error(ctx, FATAL, \"",
adam@1293 1205 string (ErrorMsg.spanToString loc),
adam@1293 1206 string ": Error executing DML: %s\\n%s\", ",
adam@1293 1207 dml,
adam@1293 1208 string ", mysql_error(conn->conn));"]
adam@1295 1209 | Settings.None => string "uw_set_error_message(ctx, mysql_error(conn->conn));",
adamc@875 1210 newline,
adamc@875 1211 newline]
adamc@875 1212
adam@1293 1213 fun dml (loc, mode) =
adamc@875 1214 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1215 newline,
adamc@1013 1216 string "MYSQL_STMT *stmt = mysql_stmt_init(conn->conn);",
adamc@875 1217 newline,
adamc@933 1218 string "if (stmt == NULL) uw_error(ctx, FATAL, \"",
adamc@875 1219 string (ErrorMsg.spanToString loc),
adamc@875 1220 string ": can't allocate temporary prepared statement\");",
adamc@875 1221 newline,
adamc@875 1222 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@875 1223 newline,
adamc@875 1224 string "if (mysql_stmt_prepare(stmt, dml, strlen(dml))) uw_error(ctx, FATAL, \"",
adamc@875 1225 string (ErrorMsg.spanToString loc),
adamc@875 1226 string ": error preparing statement: %s\\n%s\", dml, mysql_error(conn->conn));",
adamc@875 1227 newline,
adamc@875 1228 newline,
adamc@875 1229
adam@1293 1230 dmlCommon {loc = loc, dml = string "dml", mode = mode},
adamc@875 1231
adamc@875 1232 string "uw_pop_cleanup(ctx);",
adamc@875 1233 newline]
adamc@875 1234
adam@1293 1235 fun dmlPrepared {loc, id, dml, inputs, mode} =
adamc@875 1236 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1237 newline,
adamc@875 1238 string "MYSQL_BIND in[",
adamc@875 1239 string (Int.toString (length inputs)),
adamc@875 1240 string "];",
adamc@875 1241 newline,
adamc@875 1242 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1243 let
adamc@875 1244 fun buffers t =
adamc@875 1245 case t of
adamc@875 1246 String => box [string "unsigned long in_length",
adamc@875 1247 string (Int.toString i),
adamc@875 1248 string ";",
adamc@875 1249 newline]
adamc@875 1250 | Blob => box [string "unsigned long in_length",
adamc@875 1251 string (Int.toString i),
adamc@875 1252 string ";",
adamc@875 1253 newline]
adamc@876 1254 | Time => box [string "MYSQL_TIME in_buffer",
adamc@875 1255 string (Int.toString i),
adamc@875 1256 string ";",
adamc@875 1257 newline]
adamc@889 1258 | Channel => box [string "unsigned long long in_buffer",
adamc@889 1259 string (Int.toString i),
adamc@889 1260 string ";",
adamc@889 1261 newline]
adamc@875 1262 | _ => box []
adamc@875 1263 in
adamc@875 1264 box [case t of
adamc@875 1265 Nullable t => box [string "my_bool in_is_null",
adamc@875 1266 string (Int.toString i),
adamc@875 1267 string ";",
adamc@875 1268 newline,
adamc@875 1269 buffers t]
adamc@875 1270 | _ => buffers t,
adamc@875 1271 newline]
adamc@875 1272 end) inputs,
adamc@875 1273 string "MYSQL_STMT *stmt = conn->p",
adamc@875 1274 string (Int.toString id),
adamc@875 1275 string ";",
adamc@875 1276 newline,
adamc@875 1277 newline,
adamc@875 1278
adamc@878 1279 string "if (stmt == NULL) {",
adamc@878 1280 newline,
adamc@878 1281 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 1282 newline,
adamc@878 1283 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 1284 newline,
adamc@878 1285 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 1286 string (Prim.toCString dml),
adamc@878 1287 string "\", ",
adamc@878 1288 string (Int.toString (size dml)),
adamc@878 1289 string ")) {",
adamc@878 1290 newline,
adamc@878 1291 box [string "char msg[1024];",
adamc@878 1292 newline,
adamc@878 1293 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 1294 newline,
adamc@878 1295 string "msg[1023] = 0;",
adamc@878 1296 newline,
adamc@878 1297 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 1298 newline],
adamc@878 1299 string "}",
adamc@878 1300 newline,
adamc@878 1301 string "conn->p",
adamc@878 1302 string (Int.toString id),
adamc@878 1303 string " = stmt;",
adamc@878 1304 newline],
adamc@878 1305 string "}",
adamc@878 1306 newline,
adamc@878 1307 newline,
adamc@878 1308
adamc@875 1309 string "memset(in, 0, sizeof in);",
adamc@875 1310 newline,
adamc@875 1311 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1312 let
adamc@875 1313 fun buffers t =
adamc@875 1314 case t of
adamc@875 1315 String => box [string "in[",
adamc@875 1316 string (Int.toString i),
adamc@875 1317 string "].buffer = arg",
adamc@875 1318 string (Int.toString (i + 1)),
adamc@875 1319 string ";",
adamc@875 1320 newline,
adamc@875 1321 string "in_length",
adamc@875 1322 string (Int.toString i),
adamc@875 1323 string "= in[",
adamc@875 1324 string (Int.toString i),
adamc@875 1325 string "].buffer_length = strlen(arg",
adamc@875 1326 string (Int.toString (i + 1)),
adamc@875 1327 string ");",
adamc@875 1328 newline,
adamc@875 1329 string "in[",
adamc@875 1330 string (Int.toString i),
adamc@875 1331 string "].length = &in_length",
adamc@875 1332 string (Int.toString i),
adamc@875 1333 string ";",
adamc@875 1334 newline]
adamc@875 1335 | Blob => box [string "in[",
adamc@875 1336 string (Int.toString i),
adamc@875 1337 string "].buffer = arg",
adamc@875 1338 string (Int.toString (i + 1)),
adamc@875 1339 string ".data;",
adamc@875 1340 newline,
adamc@875 1341 string "in_length",
adamc@875 1342 string (Int.toString i),
adamc@875 1343 string "= in[",
adamc@875 1344 string (Int.toString i),
adamc@875 1345 string "].buffer_length = arg",
adamc@875 1346 string (Int.toString (i + 1)),
adamc@875 1347 string ".size;",
adamc@875 1348 newline,
adamc@875 1349 string "in[",
adamc@875 1350 string (Int.toString i),
adamc@875 1351 string "].length = &in_length",
adamc@875 1352 string (Int.toString i),
adamc@875 1353 string ";",
adamc@875 1354 newline]
adamc@875 1355 | Time =>
adamc@875 1356 let
adamc@875 1357 fun oneField dst src =
adamc@875 1358 box [string "in_buffer",
adamc@875 1359 string (Int.toString i),
adamc@875 1360 string ".",
adamc@875 1361 string dst,
adamc@875 1362 string " = tms.tm_",
adamc@875 1363 string src,
adamc@875 1364 string ";",
adamc@875 1365 newline]
adamc@875 1366 in
adamc@875 1367 box [string "({",
adamc@875 1368 newline,
adamc@875 1369 string "struct tm tms;",
adamc@875 1370 newline,
adamc@875 1371 string "if (localtime_r(&arg",
adamc@875 1372 string (Int.toString (i + 1)),
adam@1443 1373 string ".seconds, &tms) == NULL) uw_error(ctx, FATAL, \"",
adamc@875 1374 string (ErrorMsg.spanToString loc),
adamc@875 1375 string ": error converting to MySQL time\");",
adamc@875 1376 newline,
adamc@938 1377 oneField "year" "year + 1900",
adamc@938 1378 oneField "month" "mon + 1",
adamc@875 1379 oneField "day" "mday",
adamc@938 1380 oneField "hour" "hour - 1",
adamc@875 1381 oneField "minute" "min",
adamc@875 1382 oneField "second" "sec",
adamc@875 1383 newline,
adamc@875 1384 string "in[",
adamc@875 1385 string (Int.toString i),
adamc@875 1386 string "].buffer = &in_buffer",
adamc@875 1387 string (Int.toString i),
adamc@875 1388 string ";",
adamc@933 1389 newline,
adamc@933 1390 string "});",
adamc@875 1391 newline]
adamc@875 1392 end
adamc@889 1393 | Channel => box [string "in_buffer",
adamc@889 1394 string (Int.toString i),
adamc@889 1395 string " = ((unsigned long long)arg",
adamc@889 1396 string (Int.toString (i + 1)),
adamc@889 1397 string ".cli << 32) | arg",
adamc@889 1398 string (Int.toString (i + 1)),
adamc@889 1399 string ".chn;",
adamc@889 1400 newline,
adamc@889 1401 string "in[",
adamc@889 1402 string (Int.toString i),
adamc@889 1403 string "].buffer = &in_buffer",
adamc@889 1404 string (Int.toString i),
adamc@889 1405 string ";",
adamc@889 1406 newline]
adam@1682 1407
adamc@875 1408 | _ => box [string "in[",
adamc@875 1409 string (Int.toString i),
adamc@875 1410 string "].buffer = &arg",
adamc@875 1411 string (Int.toString (i + 1)),
adamc@875 1412 string ";",
adamc@875 1413 newline]
adamc@875 1414 in
adamc@875 1415 box [string "in[",
adamc@875 1416 string (Int.toString i),
adamc@875 1417 string "].buffer_type = ",
adamc@875 1418 string (p_buffer_type t),
adamc@875 1419 string ";",
adamc@875 1420 newline,
adamc@889 1421
adamc@889 1422 case t of
adamc@889 1423 Channel => box [string "in[",
adamc@889 1424 string (Int.toString i),
adamc@889 1425 string "].is_unsigned = 1;",
adamc@889 1426 newline]
adamc@889 1427 | _ => box [],
adam@1682 1428
adamc@875 1429 case t of
adamc@875 1430 Nullable t => box [string "in[",
adamc@875 1431 string (Int.toString i),
adamc@875 1432 string "].is_null = &in_is_null",
adamc@875 1433 string (Int.toString i),
adamc@875 1434 string ";",
adamc@875 1435 newline,
adamc@875 1436 string "if (arg",
adamc@875 1437 string (Int.toString (i + 1)),
adamc@875 1438 string " == NULL) {",
adamc@875 1439 newline,
adamc@875 1440 box [string "in_is_null",
adamc@875 1441 string (Int.toString i),
adamc@875 1442 string " = 1;",
adamc@875 1443 newline],
adamc@875 1444 string "} else {",
adamc@875 1445 box [case t of
adamc@875 1446 String => box []
adamc@875 1447 | _ =>
adamc@875 1448 box [string (p_sql_ctype t),
adamc@875 1449 space,
adamc@876 1450 string "tmp = *arg",
adamc@876 1451 string (Int.toString (i + 1)),
adamc@876 1452 string ";",
adamc@876 1453 newline,
adamc@876 1454 string (p_sql_ctype t),
adamc@876 1455 space,
adamc@875 1456 string "arg",
adamc@875 1457 string (Int.toString (i + 1)),
adamc@876 1458 string " = tmp;",
adamc@875 1459 newline],
adamc@875 1460 string "in_is_null",
adamc@875 1461 string (Int.toString i),
adamc@875 1462 string " = 0;",
adamc@875 1463 newline,
adamc@875 1464 buffers t,
adamc@876 1465 newline],
adamc@876 1466 string "}",
adamc@876 1467 newline]
adam@1682 1468
adamc@875 1469 | _ => buffers t,
adamc@875 1470 newline]
adamc@875 1471 end) inputs,
adamc@875 1472 newline,
adamc@875 1473
adamc@875 1474 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1475 string (ErrorMsg.spanToString loc),
adamc@875 1476 string ": error binding parameters\");",
adamc@875 1477 newline,
adamc@875 1478
adamc@875 1479 dmlCommon {loc = loc, dml = box [string "\"",
adam@1656 1480 string (Prim.toCString dml),
adam@1293 1481 string "\""], mode = mode}]
adamc@875 1482
adamc@878 1483 fun nextval {loc, seqE, seqName} =
adamc@878 1484 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@878 1485 newline,
adamc@878 1486 string "char *insert = ",
adamc@878 1487 case seqName of
adamc@878 1488 SOME s => string ("\"INSERT INTO " ^ s ^ " VALUES ()\"")
adamc@878 1489 | NONE => box [string "uw_Basis_strcat(ctx, \"INSERT INTO \", uw_Basis_strcat(ctx, ",
adamc@878 1490 seqE,
adamc@878 1491 string ", \" VALUES ()\"))"],
adamc@878 1492 string ";",
adamc@878 1493 newline,
adamc@878 1494 string "char *delete = ",
adamc@878 1495 case seqName of
adamc@878 1496 SOME s => string ("\"DELETE FROM " ^ s ^ "\"")
adamc@878 1497 | NONE => box [string "uw_Basis_strcat(ctx, \"DELETE FROM \", ",
adamc@878 1498 seqE,
adamc@878 1499 string ")"],
adamc@878 1500 string ";",
adamc@878 1501 newline,
adamc@878 1502 newline,
adamc@878 1503
adamc@878 1504 string "if (mysql_query(conn->conn, insert)) uw_error(ctx, FATAL, \"'nextval' INSERT failed\");",
adamc@878 1505 newline,
adamc@878 1506 string "n = mysql_insert_id(conn->conn);",
adamc@878 1507 newline,
adamc@878 1508 string "if (mysql_query(conn->conn, delete)) uw_error(ctx, FATAL, \"'nextval' DELETE failed\");",
adamc@878 1509 newline]
adamc@878 1510
adamc@878 1511 fun nextvalPrepared _ = raise Fail "MySQL.nextvalPrepared called"
adamc@867 1512
adamc@1073 1513 fun setval _ = raise Fail "MySQL.setval called"
adamc@1073 1514
adamc@877 1515 fun sqlifyString s = "'" ^ String.translate (fn #"'" => "\\'"
adamc@877 1516 | #"\\" => "\\\\"
adamc@877 1517 | ch =>
adamc@877 1518 if Char.isPrint ch then
adamc@877 1519 str ch
adamc@877 1520 else
adamc@877 1521 (ErrorMsg.error
adamc@877 1522 "Non-printing character found in SQL string literal";
adamc@877 1523 ""))
adam@1656 1524 (Prim.toCString s) ^ "'"
adamc@874 1525
adamc@877 1526 fun p_cast (s, _) = s
adamc@874 1527
adamc@874 1528 fun p_blank _ = "?"
adamc@874 1529
adamc@866 1530 val () = addDbms {name = "mysql",
adam@1464 1531 header = Config.msheader,
adam@1682 1532 randomFunction = "RAND",
adamc@866 1533 link = "-lmysqlclient",
adamc@867 1534 init = init,
adamc@873 1535 p_sql_type = p_sql_type,
adamc@867 1536 query = query,
adamc@868 1537 queryPrepared = queryPrepared,
adamc@868 1538 dml = dml,
adamc@869 1539 dmlPrepared = dmlPrepared,
adamc@869 1540 nextval = nextval,
adamc@874 1541 nextvalPrepared = nextvalPrepared,
adamc@1073 1542 setval = setval,
adamc@874 1543 sqlifyString = sqlifyString,
adamc@874 1544 p_cast = p_cast,
adamc@874 1545 p_blank = p_blank,
adamc@877 1546 supportsDeleteAs = false,
adamc@886 1547 supportsUpdateAs = false,
adamc@884 1548 createSequence = fn s => "CREATE TABLE " ^ s ^ " (uw_id INTEGER PRIMARY KEY AUTO_INCREMENT)",
adamc@878 1549 textKeysNeedLengths = true,
adamc@879 1550 supportsNextval = false,
adamc@882 1551 supportsNestedPrepared = false,
adamc@890 1552 sqlPrefix = "SET storage_engine=InnoDB;\n\n",
adamc@1014 1553 supportsOctetLength = true,
adamc@1014 1554 trueString = "TRUE",
adamc@1196 1555 falseString = "FALSE",
adamc@1196 1556 onlyUnion = true,
adamc@1196 1557 nestedRelops = false}
adamc@866 1558
adamc@866 1559 end