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MySQL: Combine transaction setup commands into one mysql_query()
author Adam Chlipala <adam@chlipala.net>
date Tue, 07 Jan 2014 08:36:18 -0500
parents 1802eb00a0ae
children ef9fdbb05c73
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
adam@1953 79 val sl = if size sl > 1 andalso String.sub (sl, 0) = #"\"" then
adam@1953 80 String.substring (sl, 1, size sl - 2)
adam@1953 81 else
adam@1953 82 sl
adam@1953 83 val both = "LOWER(table_name) = ('" ^ sl ^ "')"
adamc@874 84
adamc@998 85 val q = "SELECT COUNT(*) FROM information_schema." ^ table ^ " WHERE " ^ both
adamc@874 86
adamc@998 87 val q' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE ",
adamc@998 88 both,
adamc@998 89 " AND (",
adam@1600 90 case String.concatWith " OR "
adam@1600 91 (map (fn (x, t) =>
adam@1953 92 String.concat ["(LOWER(column_name) = '",
adam@1953 93 Settings.mangleSqlCatalog
adam@1953 94 (CharVector.map
adam@1953 95 Char.toLower (ident x)),
adam@1953 96 "' AND data_type ",
adam@1953 97 case p_sql_type_base t of
adam@1953 98 "bigint" =>
adam@1953 99 "IN ('bigint', 'int')"
adam@1953 100 | "longtext" =>
adam@1953 101 "IN ('longtext', 'varchar')"
adam@1953 102 | s => "= '" ^ s ^ "'",
adam@1600 103 if checkNullable then
adam@1600 104 (" AND is_nullable = '"
adam@1600 105 ^ (if isNotNull t then
adam@1600 106 "NO"
adam@1600 107 else
adam@1600 108 "YES")
adam@1600 109 ^ "'")
adam@1600 110 else
adam@1600 111 "",
adam@1600 112 ")"]) xts) of
adam@1600 113 "" => "FALSE"
adam@1600 114 | s => s,
adamc@874 115 ")"]
adamc@874 116
adamc@998 117 val q'' = String.concat ["SELECT COUNT(*) FROM information_schema.columns WHERE ",
adamc@998 118 both,
adam@1953 119 " AND LOWER(column_name) LIKE '", Settings.mangleSqlCatalog "%'"]
adamc@874 120 in
adamc@874 121 box [string "if (mysql_query(conn->conn, \"",
adamc@874 122 string q,
adamc@874 123 string "\")) {",
adamc@874 124 newline,
adamc@874 125 box [string "mysql_close(conn->conn);",
adamc@874 126 newline,
adamc@874 127 string "uw_error(ctx, FATAL, \"Query 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 ((res = mysql_store_result(conn->conn)) == NULL) {",
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, \"Result store failed:\\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 (mysql_num_fields(res) != 1) {",
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, \"Bad column count:\\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 ((row = mysql_fetch_row(res)) == NULL) {",
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, \"Row fetch failed:\\n",
adamc@874 170 string q,
adamc@874 171 string "\");",
adamc@874 172 newline],
adamc@874 173 string "}",
adamc@874 174 newline,
adamc@874 175 newline,
adamc@874 176
adamc@874 177 string "if (strcmp(row[0], \"1\")) {",
adamc@874 178 newline,
adamc@874 179 box [string "mysql_free_result(res);",
adamc@874 180 newline,
adamc@874 181 string "mysql_close(conn->conn);",
adamc@874 182 newline,
adamc@874 183 string "uw_error(ctx, FATAL, \"Table '",
adam@1953 184 string sl,
adamc@874 185 string "' does not exist.\");",
adamc@874 186 newline],
adamc@874 187 string "}",
adamc@874 188 newline,
adamc@874 189 newline,
adamc@874 190 string "mysql_free_result(res);",
adamc@874 191 newline,
adamc@874 192 newline,
adamc@874 193
adamc@874 194 string "if (mysql_query(conn->conn, \"",
adamc@874 195 string q',
adamc@874 196 string "\")) {",
adamc@874 197 newline,
adamc@874 198 box [string "mysql_close(conn->conn);",
adamc@874 199 newline,
adamc@874 200 string "uw_error(ctx, FATAL, \"Query 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 ((res = mysql_store_result(conn->conn)) == NULL) {",
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, \"Result store failed:\\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 (mysql_num_fields(res) != 1) {",
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, \"Bad column count:\\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 ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 237 newline,
adamc@874 238 box [string "mysql_free_result(res);",
adamc@874 239 newline,
adamc@874 240 string "mysql_close(conn->conn);",
adamc@874 241 newline,
adamc@874 242 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 243 string q',
adamc@874 244 string "\");",
adamc@874 245 newline],
adamc@874 246 string "}",
adamc@874 247 newline,
adamc@874 248 newline,
adamc@874 249
adamc@874 250 string "if (strcmp(row[0], \"",
adamc@874 251 string (Int.toString (length xts)),
adamc@874 252 string "\")) {",
adamc@874 253 newline,
adamc@874 254 box [string "mysql_free_result(res);",
adamc@874 255 newline,
adamc@874 256 string "mysql_close(conn->conn);",
adamc@874 257 newline,
adamc@874 258 string "uw_error(ctx, FATAL, \"Table '",
adam@1953 259 string sl,
adamc@874 260 string "' has the wrong column types.\");",
adamc@874 261 newline],
adamc@874 262 string "}",
adamc@874 263 newline,
adamc@874 264 newline,
adamc@874 265 string "mysql_free_result(res);",
adamc@874 266 newline,
adamc@874 267 newline,
adam@1682 268
adamc@874 269 string "if (mysql_query(conn->conn, \"",
adamc@874 270 string q'',
adamc@874 271 string "\")) {",
adamc@874 272 newline,
adamc@874 273 box [string "mysql_close(conn->conn);",
adamc@874 274 newline,
adamc@874 275 string "uw_error(ctx, FATAL, \"Query 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 ((res = mysql_store_result(conn->conn)) == NULL) {",
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, \"Result store failed:\\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 (mysql_num_fields(res) != 1) {",
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, \"Bad column count:\\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 ((row = mysql_fetch_row(res)) == NULL) {",
adamc@874 312 newline,
adamc@874 313 box [string "mysql_free_result(res);",
adamc@874 314 newline,
adamc@874 315 string "mysql_close(conn->conn);",
adamc@874 316 newline,
adamc@874 317 string "uw_error(ctx, FATAL, \"Row fetch failed:\\n",
adamc@874 318 string q'',
adamc@874 319 string "\");",
adamc@874 320 newline],
adamc@874 321 string "}",
adamc@874 322 newline,
adamc@874 323 newline,
adamc@874 324
adamc@874 325 string "if (strcmp(row[0], \"",
adamc@874 326 string (Int.toString (length xts)),
adamc@874 327 string "\")) {",
adamc@874 328 newline,
adamc@874 329 box [string "mysql_free_result(res);",
adamc@874 330 newline,
adamc@874 331 string "mysql_close(conn->conn);",
adamc@874 332 newline,
adamc@874 333 string "uw_error(ctx, FATAL, \"Table '",
adam@1953 334 string sl,
adamc@874 335 string "' has extra columns.\");",
adamc@874 336 newline],
adamc@874 337 string "}",
adamc@874 338 newline,
adamc@874 339 newline,
adamc@874 340 string "mysql_free_result(res);",
adamc@874 341 newline]
adamc@874 342 end
adamc@874 343
adamc@872 344 fun init {dbstring, prepared = ss, tables, views, sequences} =
adamc@866 345 let
adamc@866 346 val host = ref NONE
adamc@866 347 val user = ref NONE
adamc@866 348 val passwd = ref NONE
adamc@866 349 val db = ref NONE
adamc@866 350 val port = ref NONE
adamc@866 351 val unix_socket = ref NONE
adamc@866 352
adamc@866 353 fun stringOf r = case !r of
adamc@866 354 NONE => string "NULL"
adamc@866 355 | SOME s => box [string "\"",
adam@1656 356 string (Prim.toCString s),
adamc@866 357 string "\""]
adamc@866 358 in
adamc@866 359 app (fn s =>
adamc@866 360 case String.fields (fn ch => ch = #"=") s of
adamc@866 361 [name, value] =>
adamc@866 362 (case name of
adamc@866 363 "host" =>
adamc@866 364 if size value > 0 andalso String.sub (value, 0) = #"/" then
adamc@866 365 unix_socket := SOME value
adamc@866 366 else
adamc@866 367 host := SOME value
adamc@866 368 | "hostaddr" => host := SOME value
adamc@866 369 | "port" => port := Int.fromString value
adamc@866 370 | "dbname" => db := SOME value
adamc@866 371 | "user" => user := SOME value
adamc@866 372 | "password" => passwd := SOME value
adamc@866 373 | _ => ())
adamc@866 374 | _ => ()) (String.tokens Char.isSpace dbstring);
adamc@866 375
adamc@866 376 box [string "typedef struct {",
adamc@866 377 newline,
adamc@866 378 box [string "MYSQL *conn;",
adamc@866 379 newline,
adamc@866 380 p_list_sepi (box [])
adamc@866 381 (fn i => fn _ =>
adamc@866 382 box [string "MYSQL_STMT *p",
adamc@866 383 string (Int.toString i),
adamc@866 384 string ";",
adamc@866 385 newline])
adamc@866 386 ss],
adamc@866 387 string "} uw_conn;",
adamc@866 388 newline,
adamc@866 389 newline,
adamc@866 390
adamc@1094 391 string "static void uw_client_init(void) {",
adamc@874 392 newline,
adamc@879 393 box [string "uw_sqlfmtInt = \"%lld%n\";",
adamc@879 394 newline,
adam@1920 395 string "uw_sqlfmtFloat = \"%.16g%n\";",
adamc@879 396 newline,
adamc@879 397 string "uw_Estrings = 0;",
adamc@879 398 newline,
adam@1834 399 string "uw_sql_type_annotations = 0;",
adam@1834 400 newline,
adamc@879 401 string "uw_sqlsuffixString = \"\";",
adamc@879 402 newline,
adamc@1011 403 string "uw_sqlsuffixChar = \"\";",
adamc@1011 404 newline,
adamc@879 405 string "uw_sqlsuffixBlob = \"\";",
adamc@879 406 newline,
adamc@879 407 string "uw_sqlfmtUint4 = \"%u%n\";",
adamc@879 408 newline,
adamc@879 409 newline,
adamc@879 410
adamc@879 411 string "if (mysql_library_init(0, NULL, NULL)) {",
adamc@874 412 newline,
adamc@874 413 box [string "fprintf(stderr, \"Could not initialize MySQL library\\n\");",
adamc@874 414 newline,
adamc@874 415 string "exit(1);",
adamc@874 416 newline],
adamc@874 417 string "}",
adamc@874 418 newline],
adamc@874 419 string "}",
adamc@874 420 newline,
adamc@874 421 newline,
adamc@874 422
adamc@866 423 if #persistent (currentProtocol ()) then
adamc@874 424 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@874 425 newline,
adamc@874 426 string "uw_conn *conn = uw_get_db(ctx);",
adamc@874 427 newline,
adamc@874 428 string "MYSQL_RES *res;",
adamc@874 429 newline,
adamc@874 430 string "MYSQL_ROW row;",
adamc@874 431 newline,
adamc@874 432 newline,
adamc@874 433 p_list_sep newline (checkRel ("tables", true)) tables,
adamc@884 434 p_list_sep newline (fn name => checkRel ("tables", true)
adamc@884 435 (name, [("id", Settings.Client)])) sequences,
adamc@874 436 p_list_sep newline (checkRel ("views", false)) views,
adamc@874 437 string "}",
adamc@874 438 newline,
adamc@874 439 newline,
adamc@874 440
adamc@874 441 string "static void uw_db_prepare(uw_context ctx) {",
adamc@866 442 newline,
adamc@866 443 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 444 newline,
adamc@866 445 string "MYSQL_STMT *stmt;",
adamc@866 446 newline,
adamc@866 447 newline,
adamc@866 448
adamc@866 449 p_list_sepi newline (fn i => fn (s, n) =>
adamc@866 450 let
adamc@866 451 fun uhoh this s args =
adamc@866 452 box [p_list_sepi (box [])
adamc@866 453 (fn j => fn () =>
adamc@866 454 box [string
adamc@866 455 "mysql_stmt_close(conn->p",
adamc@866 456 string (Int.toString j),
adamc@866 457 string ");",
adamc@866 458 newline])
adamc@866 459 (List.tabulate (i, fn _ => ())),
adamc@866 460 box (if this then
adamc@866 461 [string
adamc@866 462 "mysql_stmt_close(conn->p",
adamc@866 463 string (Int.toString i),
adamc@866 464 string ");",
adamc@866 465 newline]
adamc@866 466 else
adamc@866 467 []),
adamc@866 468 string "mysql_close(conn->conn);",
adamc@866 469 newline,
adamc@866 470 string "uw_error(ctx, FATAL, \"",
adamc@866 471 string s,
adamc@866 472 string "\"",
adamc@866 473 p_list_sep (box []) (fn s => box [string ", ",
adamc@866 474 string s]) args,
adamc@866 475 string ");",
adamc@866 476 newline]
adamc@866 477 in
adamc@866 478 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@866 479 newline,
adamc@866 480 string "if (stmt == NULL) {",
adamc@866 481 newline,
adamc@866 482 uhoh false "Out of memory allocating prepared statement" [],
adamc@866 483 string "}",
adamc@866 484 newline,
adamc@874 485 string "conn->p",
adamc@874 486 string (Int.toString i),
adamc@874 487 string " = stmt;",
adamc@874 488 newline,
adamc@866 489
adamc@866 490 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 491 string (Prim.toCString s),
adamc@866 492 string "\", ",
adamc@866 493 string (Int.toString (size s)),
adamc@866 494 string ")) {",
adamc@866 495 newline,
adamc@866 496 box [string "char msg[1024];",
adamc@866 497 newline,
adamc@866 498 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@866 499 newline,
adamc@866 500 string "msg[1023] = 0;",
adamc@866 501 newline,
adamc@866 502 uhoh true "Error preparing statement: %s" ["msg"]],
adamc@866 503 string "}",
adamc@866 504 newline]
adamc@866 505 end)
adamc@866 506 ss,
adamc@866 507
adamc@866 508 string "}"]
adamc@866 509 else
adamc@882 510 box [string "static void uw_db_prepare(uw_context ctx) { }",
adamc@882 511 newline,
adamc@882 512 string "static void uw_db_validate(uw_context ctx) { }"],
adamc@866 513 newline,
adamc@866 514 newline,
adam@1682 515
adamc@1094 516 string "static void uw_db_init(uw_context ctx) {",
adamc@866 517 newline,
adamc@866 518 string "MYSQL *mysql = mysql_init(NULL);",
adamc@866 519 newline,
adamc@866 520 string "uw_conn *conn;",
adamc@866 521 newline,
adamc@866 522 string "if (mysql == NULL) uw_error(ctx, FATAL, ",
adamc@866 523 string "\"libmysqlclient can't allocate a connection.\");",
adamc@866 524 newline,
adamc@866 525 string "if (mysql_real_connect(mysql, ",
adamc@866 526 stringOf host,
adamc@866 527 string ", ",
adamc@866 528 stringOf user,
adamc@866 529 string ", ",
adamc@866 530 stringOf passwd,
adamc@866 531 string ", ",
adamc@866 532 stringOf db,
adamc@866 533 string ", ",
adamc@866 534 case !port of
adamc@866 535 NONE => string "0"
adamc@866 536 | SOME n => string (Int.toString n),
adamc@866 537 string ", ",
adamc@866 538 stringOf unix_socket,
adam@1955 539 string ", CLIENT_MULTI_STATEMENTS) == NULL) {",
adamc@866 540 newline,
adamc@866 541 box [string "char msg[1024];",
adamc@866 542 newline,
adamc@866 543 string "strncpy(msg, mysql_error(mysql), 1024);",
adamc@866 544 newline,
adamc@866 545 string "msg[1023] = 0;",
adamc@866 546 newline,
adamc@866 547 string "mysql_close(mysql);",
adamc@866 548 newline,
adamc@866 549 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@866 550 string "\"Connection to MySQL server failed: %s\", msg);"],
adamc@866 551 newline,
adamc@866 552 string "}",
adamc@866 553 newline,
adamc@874 554 string "conn = calloc(1, sizeof(uw_conn));",
adamc@866 555 newline,
adamc@866 556 string "conn->conn = mysql;",
adamc@866 557 newline,
adamc@866 558 string "uw_set_db(ctx, conn);",
adamc@866 559 newline,
adamc@866 560 string "uw_db_validate(ctx);",
adamc@866 561 newline,
adamc@866 562 string "uw_db_prepare(ctx);",
adamc@866 563 newline,
adamc@866 564 string "}",
adamc@866 565 newline,
adamc@866 566 newline,
adamc@866 567
adamc@1094 568 string "static void uw_db_close(uw_context ctx) {",
adamc@866 569 newline,
adamc@866 570 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 571 newline,
adamc@866 572 p_list_sepi (box [])
adamc@866 573 (fn i => fn _ =>
adamc@866 574 box [string "if (conn->p",
adamc@866 575 string (Int.toString i),
adamc@866 576 string ") mysql_stmt_close(conn->p",
adamc@866 577 string (Int.toString i),
adamc@866 578 string ");",
adamc@866 579 newline])
adamc@866 580 ss,
adamc@866 581 string "mysql_close(conn->conn);",
adamc@866 582 newline,
adamc@866 583 string "}",
adamc@866 584 newline,
adamc@866 585 newline,
adamc@866 586
adam@1936 587 string "static int uw_db_begin(uw_context ctx, int could_write) {",
adamc@866 588 newline,
adamc@866 589 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 590 newline,
adamc@866 591 newline,
adam@1955 592 string "return mysql_query(conn->conn, \"SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; BEGIN\") ? 1 : (mysql_next_result(conn->conn), 0);",
adamc@866 593 newline,
adamc@866 594 string "}",
adamc@866 595 newline,
adamc@866 596 newline,
adamc@866 597
adamc@1094 598 string "static int uw_db_commit(uw_context ctx) {",
adamc@866 599 newline,
adamc@866 600 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 601 newline,
adamc@866 602 string "return mysql_commit(conn->conn);",
adamc@866 603 newline,
adamc@866 604 string "}",
adamc@866 605 newline,
adamc@866 606 newline,
adamc@866 607
adamc@1094 608 string "static int uw_db_rollback(uw_context ctx) {",
adamc@866 609 newline,
adamc@866 610 string "uw_conn *conn = uw_get_db(ctx);",
adamc@866 611 newline,
adamc@866 612 string "return mysql_rollback(conn->conn);",
adamc@866 613 newline,
adamc@866 614 string "}",
adamc@866 615 newline,
adamc@866 616 newline]
adamc@866 617 end
adamc@866 618
adamc@880 619 fun p_getcol {loc, wontLeakStrings = _, col = i, typ = t} =
adamc@873 620 let
adamc@873 621 fun getter t =
adamc@873 622 case t of
adamc@873 623 String => box [string "({",
adamc@873 624 newline,
adamc@873 625 string "uw_Basis_string s = uw_malloc(ctx, length",
adamc@873 626 string (Int.toString i),
adamc@873 627 string " + 1);",
adamc@873 628 newline,
adamc@873 629 string "out[",
adamc@873 630 string (Int.toString i),
adamc@873 631 string "].buffer = s;",
adamc@873 632 newline,
adamc@873 633 string "out[",
adamc@873 634 string (Int.toString i),
adamc@873 635 string "].buffer_length = length",
adamc@873 636 string (Int.toString i),
adamc@873 637 string " + 1;",
adamc@873 638 newline,
adamc@873 639 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 640 string (Int.toString i),
adamc@873 641 string "], ",
adamc@873 642 string (Int.toString i),
adamc@873 643 string ", 0);",
adamc@873 644 newline,
adamc@873 645 string "s[length",
adamc@873 646 string (Int.toString i),
adamc@873 647 string "] = 0;",
adamc@873 648 newline,
adamc@873 649 string "s;",
adamc@873 650 newline,
adamc@873 651 string "})"]
adamc@873 652 | Blob => box [string "({",
adamc@873 653 newline,
adamc@873 654 string "uw_Basis_blob b = {length",
adamc@873 655 string (Int.toString i),
adamc@873 656 string ", uw_malloc(ctx, length",
adamc@873 657 string (Int.toString i),
adamc@873 658 string ")};",
adamc@873 659 newline,
adamc@873 660 string "out[",
adamc@873 661 string (Int.toString i),
adamc@873 662 string "].buffer = b.data;",
adamc@873 663 newline,
adamc@873 664 string "out[",
adamc@873 665 string (Int.toString i),
adamc@873 666 string "].buffer_length = length",
adamc@873 667 string (Int.toString i),
adamc@873 668 string ";",
adamc@873 669 newline,
adamc@873 670 string "mysql_stmt_fetch_column(stmt, &out[",
adamc@873 671 string (Int.toString i),
adamc@873 672 string "], ",
adamc@873 673 string (Int.toString i),
adamc@873 674 string ", 0);",
adamc@873 675 newline,
adamc@873 676 string "b;",
adamc@873 677 newline,
adamc@873 678 string "})"]
adamc@873 679 | Time => box [string "({",
adamc@876 680 string "MYSQL_TIME *mt = &buffer",
adamc@873 681 string (Int.toString i),
adamc@873 682 string ";",
adamc@873 683 newline,
adamc@873 684 newline,
adamc@938 685 string "struct tm t = {mt->second, mt->minute, mt->hour, mt->day, mt->month-1, mt->year - 1900, 0, 0, -1};",
adamc@873 686 newline,
adam@1443 687 string "uw_Basis_time res = {mktime(&t), 0};",
adam@1443 688 newline,
adam@1443 689 string "res;",
adamc@873 690 newline,
adamc@873 691 string "})"]
adamc@889 692 | Channel => box [string "({",
adamc@889 693 string "uw_Basis_channel ch = {buffer",
adamc@889 694 string (Int.toString i),
adamc@889 695 string " >> 32, buffer",
adamc@889 696 string (Int.toString i),
adamc@889 697 string " & 0xFFFFFFFF};",
adamc@889 698 newline,
adamc@889 699 string "ch;",
adamc@889 700 newline,
adamc@889 701 string "})"]
adamc@873 702 | _ => box [string "buffer",
adamc@873 703 string (Int.toString i)]
adamc@873 704 in
adamc@873 705 case t of
adamc@873 706 Nullable t => box [string "(is_null",
adamc@873 707 string (Int.toString i),
adamc@873 708 string " ? NULL : ",
adamc@873 709 case t of
adamc@873 710 String => getter t
adamc@873 711 | _ => box [string "({",
adamc@873 712 newline,
adamc@873 713 string (p_sql_ctype t),
adamc@873 714 space,
adamc@873 715 string "*tmp = uw_malloc(ctx, sizeof(",
adamc@873 716 string (p_sql_ctype t),
adamc@873 717 string "));",
adamc@873 718 newline,
adamc@873 719 string "*tmp = ",
adamc@873 720 getter t,
adamc@873 721 string ";",
adamc@873 722 newline,
adamc@873 723 string "tmp;",
adamc@873 724 newline,
adamc@873 725 string "})"],
adamc@873 726 string ")"]
adamc@873 727 | _ => box [string "(is_null",
adamc@873 728 string (Int.toString i),
adamc@873 729 string " ? ",
adamc@873 730 box [string "({",
adamc@873 731 string (p_sql_ctype t),
adamc@873 732 space,
adamc@873 733 string "tmp;",
adamc@873 734 newline,
adamc@873 735 string "uw_error(ctx, FATAL, \"Unexpectedly NULL field #",
adamc@873 736 string (Int.toString i),
adamc@873 737 string "\");",
adamc@873 738 newline,
adamc@873 739 string "tmp;",
adamc@873 740 newline,
adamc@873 741 string "})"],
adamc@873 742 string " : ",
adamc@873 743 getter t,
adamc@873 744 string ")"]
adamc@873 745 end
adamc@873 746
adamc@873 747 fun queryCommon {loc, query, cols, doCols} =
adamc@873 748 box [string "int n, r;",
adamc@873 749 newline,
adamc@873 750 string "MYSQL_BIND out[",
adamc@873 751 string (Int.toString (length cols)),
adamc@873 752 string "];",
adamc@873 753 newline,
adamc@873 754 p_list_sepi (box []) (fn i => fn t =>
adamc@873 755 let
adamc@873 756 fun buffers t =
adamc@873 757 case t of
adamc@873 758 String => box [string "unsigned long length",
adamc@873 759 string (Int.toString i),
adamc@873 760 string ";",
adamc@873 761 newline]
adamc@873 762 | Blob => box [string "unsigned long length",
adamc@873 763 string (Int.toString i),
adamc@873 764 string ";",
adamc@873 765 newline]
adamc@876 766 | Time => box [string "MYSQL_TIME buffer",
adamc@876 767 string (Int.toString i),
adamc@876 768 string ";",
adamc@876 769 newline]
adamc@889 770 | Channel => box [string "unsigned long long buffer",
adamc@889 771 string (Int.toString i),
adamc@889 772 string ";",
adamc@889 773 newline]
adamc@873 774 | _ => box [string (p_sql_ctype t),
adamc@873 775 space,
adamc@873 776 string "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 "my_bool is_null",
adamc@873 782 string (Int.toString i),
adamc@873 783 string ";",
adamc@873 784 newline,
adamc@873 785 case t of
adamc@873 786 Nullable t => buffers t
adamc@873 787 | _ => buffers t,
adamc@873 788 newline]
adamc@873 789 end) cols,
adamc@873 790 newline,
adamc@873 791
adamc@873 792 string "memset(out, 0, sizeof out);",
adamc@873 793 newline,
adamc@873 794 p_list_sepi (box []) (fn i => fn t =>
adamc@873 795 let
adamc@873 796 fun buffers t =
adamc@873 797 case t of
adamc@875 798 String => box [string "out[",
adamc@875 799 string (Int.toString i),
adamc@875 800 string "].length = &length",
adamc@875 801 string (Int.toString i),
adamc@875 802 string ";",
adamc@875 803 newline]
adamc@1013 804 | Char => box [string "out[",
adamc@1013 805 string (Int.toString i),
adamc@1013 806 string "].buffer_length = 1;",
adamc@1013 807 newline,
adamc@1013 808 string "out[",
adamc@1013 809 string (Int.toString i),
adamc@1013 810 string "].buffer = &buffer",
adamc@1013 811 string (Int.toString i),
adamc@1013 812 string ";",
adamc@1013 813 newline]
adamc@875 814 | Blob => box [string "out[",
adamc@875 815 string (Int.toString i),
adamc@875 816 string "].length = &length",
adamc@875 817 string (Int.toString i),
adamc@875 818 string ";",
adamc@875 819 newline]
adamc@873 820 | _ => box [string "out[",
adamc@873 821 string (Int.toString i),
adamc@873 822 string "].buffer = &buffer",
adamc@873 823 string (Int.toString i),
adamc@873 824 string ";",
adamc@873 825 newline]
adamc@873 826 in
adamc@873 827 box [string "out[",
adamc@873 828 string (Int.toString i),
adamc@873 829 string "].buffer_type = ",
adamc@873 830 string (p_buffer_type t),
adamc@873 831 string ";",
adamc@873 832 newline,
adamc@873 833 string "out[",
adamc@873 834 string (Int.toString i),
adamc@873 835 string "].is_null = &is_null",
adamc@873 836 string (Int.toString i),
adamc@873 837 string ";",
adamc@873 838 newline,
adam@1682 839
adamc@873 840 case t of
adamc@873 841 Nullable t => buffers t
adamc@873 842 | _ => buffers t,
adamc@873 843 newline]
adamc@873 844 end) cols,
adamc@873 845 newline,
adamc@873 846
adamc@875 847 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 848 string (ErrorMsg.spanToString loc),
adamc@875 849 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 850 query,
adamc@875 851 string ", mysql_error(conn->conn));",
adamc@875 852 newline,
adamc@875 853 newline,
adamc@875 854
adam@1954 855 string "if (mysql_stmt_execute(stmt)) {",
adam@1954 856 newline,
adam@1954 857 box [string "if (mysql_errno(conn->conn) == 1213)",
adam@1954 858 newline,
adam@1954 859 box [string "uw_error(ctx, UNLIMITED_RETRY, \"Deadlock detected\");",
adam@1954 860 newline],
adam@1954 861 newline,
adam@1954 862 string "uw_error(ctx, FATAL, \"",
adam@1954 863 string (ErrorMsg.spanToString loc),
adam@1954 864 string ": Error executing query: %s\\n%s\", ",
adam@1954 865 query,
adam@1954 866 string ", mysql_error(conn->conn));",
adam@1954 867 newline],
adam@1954 868 string "}",
adamc@875 869 newline,
adamc@875 870 newline,
adamc@875 871
adamc@875 872 string "if (mysql_stmt_bind_result(stmt, out)) uw_error(ctx, FATAL, \"",
adamc@875 873 string (ErrorMsg.spanToString loc),
adamc@875 874 string ": Error binding query result: %s\\n%s\", ",
adamc@875 875 query,
adamc@875 876 string ", mysql_error(conn->conn));",
adamc@873 877 newline,
adamc@873 878 newline,
adamc@873 879
adamc@873 880 string "if (mysql_stmt_store_result(stmt)) uw_error(ctx, FATAL, \"",
adamc@873 881 string (ErrorMsg.spanToString loc),
adamc@875 882 string ": Error storing query result: %s\\n%s\", ",
adamc@875 883 query,
adamc@875 884 string ", mysql_error(conn->conn));",
adamc@873 885 newline,
adamc@873 886 newline,
adamc@873 887
adamc@873 888 string "uw_end_region(ctx);",
adamc@873 889 newline,
adamc@875 890 string "while (1) {",
adamc@875 891 newline,
adamc@875 892 string "r = mysql_stmt_fetch(stmt);",
adamc@875 893 newline,
adamc@875 894 string "if (r != 0 && r != MYSQL_DATA_TRUNCATED) break;",
adamc@873 895 newline,
adamc@873 896 doCols p_getcol,
adamc@873 897 string "}",
adamc@873 898 newline,
adamc@873 899 newline,
adamc@873 900
adamc@874 901 string "if (r == 1) uw_error(ctx, FATAL, \"",
adamc@873 902 string (ErrorMsg.spanToString loc),
adamc@875 903 string ": query result fetching failed: %s\\n%s\", ",
adamc@875 904 query,
adamc@875 905 string ", mysql_error(conn->conn));",
adamc@875 906 newline,
adamc@875 907 newline,
adamc@875 908
adamc@875 909 string "if (mysql_stmt_reset(stmt)) uw_error(ctx, FATAL, \"",
adamc@875 910 string (ErrorMsg.spanToString loc),
adamc@875 911 string ": Error reseting statement: %s\\n%s\", ",
adamc@875 912 query,
adamc@875 913 string ", mysql_error(conn->conn));",
adamc@875 914 newline,
adamc@875 915 newline]
adamc@873 916
adamc@873 917 fun query {loc, cols, doCols} =
adamc@873 918 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 919 newline,
adamc@876 920 string "MYSQL_STMT *stmt = mysql_stmt_init(conn->conn);",
adamc@873 921 newline,
adamc@875 922 string "if (stmt == NULL) uw_error(ctx, FATAL, \"",
adamc@873 923 string (ErrorMsg.spanToString loc),
adamc@873 924 string ": can't allocate temporary prepared statement\");",
adamc@873 925 newline,
adamc@873 926 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@873 927 newline,
adamc@873 928 string "if (mysql_stmt_prepare(stmt, query, strlen(query))) uw_error(ctx, FATAL, \"",
adamc@873 929 string (ErrorMsg.spanToString loc),
adamc@875 930 string ": error preparing statement: %s\\n%s\", query, mysql_error(conn->conn));",
adamc@873 931 newline,
adamc@873 932 newline,
adamc@873 933
adamc@873 934 queryCommon {loc = loc, cols = cols, doCols = doCols, query = string "query"},
adamc@873 935
adamc@873 936 string "uw_pop_cleanup(ctx);",
adamc@873 937 newline]
adamc@873 938
adamc@879 939 fun queryPrepared {loc, id, query, inputs, cols, doCols, nested} =
adamc@873 940 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@873 941 newline,
adamc@873 942 string "MYSQL_BIND in[",
adamc@873 943 string (Int.toString (length inputs)),
adamc@873 944 string "];",
adamc@873 945 newline,
adamc@873 946 p_list_sepi (box []) (fn i => fn t =>
adamc@873 947 let
adamc@873 948 fun buffers t =
adamc@873 949 case t of
adamc@873 950 String => box [string "unsigned long in_length",
adamc@873 951 string (Int.toString i),
adamc@873 952 string ";",
adamc@873 953 newline]
adamc@873 954 | Blob => box [string "unsigned long in_length",
adamc@873 955 string (Int.toString i),
adamc@873 956 string ";",
adamc@873 957 newline]
adamc@876 958 | Time => box [string "MYSQL_TIME in_buffer",
adamc@873 959 string (Int.toString i),
adamc@1013 960 string ";",
adamc@1013 961 newline]
adamc@873 962 | _ => box []
adamc@873 963 in
adamc@873 964 box [case t of
adamc@873 965 Nullable t => box [string "my_bool in_is_null",
adamc@873 966 string (Int.toString i),
adamc@873 967 string ";",
adamc@873 968 newline,
adamc@873 969 buffers t]
adamc@873 970 | _ => buffers t,
adamc@873 971 newline]
adamc@873 972 end) inputs,
adamc@873 973
adamc@879 974 if nested then
adamc@879 975 box [string "MYSQL_STMT *stmt;",
adamc@879 976 newline]
adamc@879 977 else
adamc@879 978 box [string "MYSQL_STMT *stmt = conn->p",
adamc@879 979 string (Int.toString id),
adamc@879 980 string ";",
adamc@879 981 newline,
adamc@879 982 newline,
adamc@879 983
adamc@879 984 string "if (stmt == NULL) {",
adamc@879 985 newline],
adamc@879 986
adamc@878 987 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 988 newline,
adamc@878 989 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 990 newline,
adamc@880 991 if nested then
adamc@880 992 box [string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@880 993 newline]
adamc@880 994 else
adamc@880 995 box [],
adamc@878 996 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 997 string (Prim.toCString query),
adamc@878 998 string "\", ",
adamc@878 999 string (Int.toString (size query)),
adamc@878 1000 string ")) {",
adamc@878 1001 newline,
adamc@878 1002 box [string "char msg[1024];",
adamc@878 1003 newline,
adamc@878 1004 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 1005 newline,
adamc@878 1006 string "msg[1023] = 0;",
adamc@878 1007 newline,
adamc@880 1008 if nested then
adamc@880 1009 box []
adamc@880 1010 else
adamc@880 1011 box [string "mysql_stmt_close(stmt);",
adamc@880 1012 newline],
adamc@878 1013 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 1014 newline],
adamc@878 1015 string "}",
adamc@878 1016 newline,
adamc@879 1017 if nested then
adamc@879 1018 box []
adamc@879 1019 else
adamc@879 1020 box [string "conn->p",
adamc@879 1021 string (Int.toString id),
adamc@879 1022 string " = stmt;",
adamc@879 1023 newline]],
adamc@879 1024 if nested then
adamc@879 1025 box []
adamc@879 1026 else
adamc@879 1027 box [string "}",
adamc@879 1028 newline],
adamc@878 1029 newline,
adamc@878 1030
adamc@873 1031 string "memset(in, 0, sizeof in);",
adamc@873 1032 newline,
adamc@873 1033 p_list_sepi (box []) (fn i => fn t =>
adamc@873 1034 let
adamc@873 1035 fun buffers t =
adamc@873 1036 case t of
adamc@873 1037 String => box [string "in[",
adamc@873 1038 string (Int.toString i),
adamc@873 1039 string "].buffer = arg",
adamc@873 1040 string (Int.toString (i + 1)),
adamc@873 1041 string ";",
adamc@873 1042 newline,
adamc@873 1043 string "in_length",
adamc@873 1044 string (Int.toString i),
adamc@873 1045 string "= in[",
adamc@873 1046 string (Int.toString i),
adamc@873 1047 string "].buffer_length = strlen(arg",
adamc@873 1048 string (Int.toString (i + 1)),
adamc@873 1049 string ");",
adamc@873 1050 newline,
adamc@873 1051 string "in[",
adamc@873 1052 string (Int.toString i),
adamc@873 1053 string "].length = &in_length",
adamc@873 1054 string (Int.toString i),
adamc@873 1055 string ";",
adamc@873 1056 newline]
adamc@1013 1057 | Char => box [string "in[",
adamc@1013 1058 string (Int.toString i),
adamc@1013 1059 string "].buffer = &arg",
adamc@1013 1060 string (Int.toString (i + 1)),
adamc@1013 1061 string ";",
adamc@1013 1062 newline,
adamc@1013 1063 string "in[",
adamc@1013 1064 string (Int.toString i),
adamc@1013 1065 string "].buffer_length = 1;",
adamc@1013 1066 newline]
adamc@873 1067 | Blob => box [string "in[",
adamc@873 1068 string (Int.toString i),
adamc@873 1069 string "].buffer = arg",
adamc@873 1070 string (Int.toString (i + 1)),
adamc@873 1071 string ".data;",
adamc@873 1072 newline,
adamc@873 1073 string "in_length",
adamc@873 1074 string (Int.toString i),
adamc@873 1075 string "= in[",
adamc@873 1076 string (Int.toString i),
adamc@873 1077 string "].buffer_length = arg",
adamc@873 1078 string (Int.toString (i + 1)),
adamc@873 1079 string ".size;",
adamc@873 1080 newline,
adamc@873 1081 string "in[",
adamc@873 1082 string (Int.toString i),
adamc@873 1083 string "].length = &in_length",
adamc@873 1084 string (Int.toString i),
adamc@873 1085 string ";",
adamc@873 1086 newline]
adamc@873 1087 | Time =>
adamc@873 1088 let
adamc@873 1089 fun oneField dst src =
adamc@873 1090 box [string "in_buffer",
adamc@873 1091 string (Int.toString i),
adamc@873 1092 string ".",
adamc@873 1093 string dst,
adamc@873 1094 string " = tms.tm_",
adamc@873 1095 string src,
adamc@873 1096 string ";",
adamc@873 1097 newline]
adamc@873 1098 in
adamc@873 1099 box [string "({",
adamc@873 1100 newline,
adamc@873 1101 string "struct tm tms;",
adamc@873 1102 newline,
adamc@873 1103 string "if (localtime_r(&arg",
adamc@873 1104 string (Int.toString (i + 1)),
adam@1443 1105 string ".seconds, &tms) == NULL) uw_error(ctx, FATAL, \"",
adamc@873 1106 string (ErrorMsg.spanToString loc),
adamc@873 1107 string ": error converting to MySQL time\");",
adamc@873 1108 newline,
adamc@938 1109 oneField "year" "year + 1900",
adamc@888 1110 box [string "in_buffer",
adamc@888 1111 string (Int.toString i),
adamc@888 1112 string ".month = tms.tm_mon + 1;",
adamc@888 1113 newline],
adamc@873 1114 oneField "day" "mday",
adam@1839 1115 oneField "hour" "hour",
adamc@873 1116 oneField "minute" "min",
adamc@873 1117 oneField "second" "sec",
adamc@873 1118 newline,
adamc@873 1119 string "in[",
adamc@873 1120 string (Int.toString i),
adamc@873 1121 string "].buffer = &in_buffer",
adamc@873 1122 string (Int.toString i),
adamc@873 1123 string ";",
adamc@933 1124 newline,
adamc@933 1125 string "});",
adamc@873 1126 newline]
adamc@873 1127 end
adamc@889 1128 | Channel => box [string "in_buffer",
adamc@889 1129 string (Int.toString i),
adamc@889 1130 string " = ((unsigned long long)arg",
adamc@889 1131 string (Int.toString (i + 1)),
adamc@889 1132 string ".cli << 32) | arg",
adamc@889 1133 string (Int.toString (i + 1)),
adamc@889 1134 string ".chn;",
adamc@889 1135 newline,
adamc@889 1136 string "in[",
adamc@889 1137 string (Int.toString i),
adamc@889 1138 string "].buffer = &in_buffer",
adamc@889 1139 string (Int.toString i),
adamc@889 1140 string ";",
adamc@889 1141 newline]
adam@1682 1142
adamc@873 1143 | _ => box [string "in[",
adamc@873 1144 string (Int.toString i),
adamc@873 1145 string "].buffer = &arg",
adamc@873 1146 string (Int.toString (i + 1)),
adamc@873 1147 string ";",
adamc@873 1148 newline]
adamc@873 1149 in
adamc@873 1150 box [string "in[",
adamc@873 1151 string (Int.toString i),
adamc@873 1152 string "].buffer_type = ",
adamc@873 1153 string (p_buffer_type t),
adamc@873 1154 string ";",
adamc@873 1155 newline,
adam@1682 1156
adamc@873 1157 case t of
adamc@873 1158 Nullable t => box [string "in[",
adamc@873 1159 string (Int.toString i),
adamc@873 1160 string "].is_null = &in_is_null",
adamc@873 1161 string (Int.toString i),
adamc@873 1162 string ";",
adamc@873 1163 newline,
adamc@873 1164 string "if (arg",
adamc@873 1165 string (Int.toString (i + 1)),
adamc@873 1166 string " == NULL) {",
adamc@873 1167 newline,
adamc@873 1168 box [string "in_is_null",
adamc@873 1169 string (Int.toString i),
adamc@873 1170 string " = 1;",
adamc@873 1171 newline],
adamc@873 1172 string "} else {",
adamc@873 1173 box [case t of
adamc@873 1174 String => box []
adamc@873 1175 | _ =>
adamc@873 1176 box [string (p_sql_ctype t),
adamc@873 1177 space,
adamc@876 1178 string "tmp = *arg",
adamc@876 1179 string (Int.toString (i + 1)),
adamc@876 1180 string ";",
adamc@876 1181 newline,
adamc@876 1182 string (p_sql_ctype t),
adamc@876 1183 space,
adamc@873 1184 string "arg",
adamc@873 1185 string (Int.toString (i + 1)),
adamc@876 1186 string " = tmp;",
adamc@873 1187 newline],
adamc@873 1188 string "in_is_null",
adamc@873 1189 string (Int.toString i),
adamc@873 1190 string " = 0;",
adamc@873 1191 newline,
adamc@873 1192 buffers t,
adamc@876 1193 newline],
adamc@876 1194 string "}",
adamc@876 1195 newline]
adam@1682 1196
adamc@873 1197 | _ => buffers t,
adamc@873 1198 newline]
adamc@873 1199 end) inputs,
adamc@873 1200 newline,
adamc@873 1201
adamc@875 1202 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1203 string (ErrorMsg.spanToString loc),
adamc@875 1204 string ": error binding parameters\");",
adamc@875 1205 newline,
adamc@875 1206
adamc@873 1207 queryCommon {loc = loc, cols = cols, doCols = doCols, query = box [string "\"",
adam@1656 1208 string (Prim.toCString query),
adamc@879 1209 string "\""]},
adamc@879 1210
adamc@879 1211 if nested then
adamc@879 1212 box [string "uw_pop_cleanup(ctx);",
adamc@879 1213 newline]
adamc@879 1214 else
adamc@879 1215 box []]
adamc@873 1216
adam@1293 1217 fun dmlCommon {loc, dml, mode} =
adam@1953 1218 box [string "if (mysql_stmt_execute(stmt)) {",
adam@1953 1219 box [string "if (mysql_errno(conn->conn) == 1213)",
adam@1953 1220 newline,
adam@1953 1221 box [string "uw_error(ctx, UNLIMITED_RETRY, \"Deadlock detected\");",
adam@1953 1222 newline],
adam@1953 1223 newline,
adam@1953 1224 case mode of
adam@1953 1225 Settings.Error => box [string "uw_error(ctx, FATAL, \"",
adam@1953 1226 string (ErrorMsg.spanToString loc),
adam@1953 1227 string ": Error executing DML: %s\\n%s\", ",
adam@1953 1228 dml,
adam@1953 1229 string ", mysql_error(conn->conn));"]
adam@1953 1230 | Settings.None => string "uw_set_error_message(ctx, mysql_error(conn->conn));",
adam@1953 1231 newline],
adam@1953 1232 string "}",
adamc@875 1233 newline]
adamc@875 1234
adam@1293 1235 fun dml (loc, mode) =
adamc@875 1236 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1237 newline,
adamc@1013 1238 string "MYSQL_STMT *stmt = mysql_stmt_init(conn->conn);",
adamc@875 1239 newline,
adamc@933 1240 string "if (stmt == NULL) uw_error(ctx, FATAL, \"",
adamc@875 1241 string (ErrorMsg.spanToString loc),
adamc@875 1242 string ": can't allocate temporary prepared statement\");",
adamc@875 1243 newline,
adamc@875 1244 string "uw_push_cleanup(ctx, (void (*)(void *))mysql_stmt_close, stmt);",
adamc@875 1245 newline,
adamc@875 1246 string "if (mysql_stmt_prepare(stmt, dml, strlen(dml))) uw_error(ctx, FATAL, \"",
adamc@875 1247 string (ErrorMsg.spanToString loc),
adamc@875 1248 string ": error preparing statement: %s\\n%s\", dml, mysql_error(conn->conn));",
adamc@875 1249 newline,
adamc@875 1250 newline,
adamc@875 1251
adam@1293 1252 dmlCommon {loc = loc, dml = string "dml", mode = mode},
adamc@875 1253
adamc@875 1254 string "uw_pop_cleanup(ctx);",
adamc@875 1255 newline]
adamc@875 1256
adam@1293 1257 fun dmlPrepared {loc, id, dml, inputs, mode} =
adamc@875 1258 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@875 1259 newline,
adamc@875 1260 string "MYSQL_BIND in[",
adamc@875 1261 string (Int.toString (length inputs)),
adamc@875 1262 string "];",
adamc@875 1263 newline,
adamc@875 1264 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1265 let
adamc@875 1266 fun buffers t =
adamc@875 1267 case t of
adamc@875 1268 String => box [string "unsigned long in_length",
adamc@875 1269 string (Int.toString i),
adamc@875 1270 string ";",
adamc@875 1271 newline]
adamc@875 1272 | Blob => box [string "unsigned long in_length",
adamc@875 1273 string (Int.toString i),
adamc@875 1274 string ";",
adamc@875 1275 newline]
adamc@876 1276 | Time => box [string "MYSQL_TIME in_buffer",
adamc@875 1277 string (Int.toString i),
adamc@875 1278 string ";",
adamc@875 1279 newline]
adamc@889 1280 | Channel => box [string "unsigned long long in_buffer",
adamc@889 1281 string (Int.toString i),
adamc@889 1282 string ";",
adamc@889 1283 newline]
adamc@875 1284 | _ => box []
adamc@875 1285 in
adamc@875 1286 box [case t of
adamc@875 1287 Nullable t => box [string "my_bool in_is_null",
adamc@875 1288 string (Int.toString i),
adamc@875 1289 string ";",
adamc@875 1290 newline,
adamc@875 1291 buffers t]
adamc@875 1292 | _ => buffers t,
adamc@875 1293 newline]
adamc@875 1294 end) inputs,
adamc@875 1295 string "MYSQL_STMT *stmt = conn->p",
adamc@875 1296 string (Int.toString id),
adamc@875 1297 string ";",
adamc@875 1298 newline,
adamc@875 1299 newline,
adamc@875 1300
adamc@878 1301 string "if (stmt == NULL) {",
adamc@878 1302 newline,
adamc@878 1303 box [string "stmt = mysql_stmt_init(conn->conn);",
adamc@878 1304 newline,
adamc@878 1305 string "if (stmt == NULL) uw_error(ctx, FATAL, \"Out of memory allocating prepared statement\");",
adamc@878 1306 newline,
adamc@878 1307 string "if (mysql_stmt_prepare(stmt, \"",
adam@1656 1308 string (Prim.toCString dml),
adamc@878 1309 string "\", ",
adamc@878 1310 string (Int.toString (size dml)),
adamc@878 1311 string ")) {",
adamc@878 1312 newline,
adamc@878 1313 box [string "char msg[1024];",
adamc@878 1314 newline,
adamc@878 1315 string "strncpy(msg, mysql_stmt_error(stmt), 1024);",
adamc@878 1316 newline,
adamc@878 1317 string "msg[1023] = 0;",
adamc@878 1318 newline,
adamc@878 1319 string "uw_error(ctx, FATAL, \"Error preparing statement: %s\", msg);",
adamc@878 1320 newline],
adamc@878 1321 string "}",
adamc@878 1322 newline,
adamc@878 1323 string "conn->p",
adamc@878 1324 string (Int.toString id),
adamc@878 1325 string " = stmt;",
adamc@878 1326 newline],
adamc@878 1327 string "}",
adamc@878 1328 newline,
adamc@878 1329 newline,
adamc@878 1330
adamc@875 1331 string "memset(in, 0, sizeof in);",
adamc@875 1332 newline,
adamc@875 1333 p_list_sepi (box []) (fn i => fn t =>
adamc@875 1334 let
adamc@875 1335 fun buffers t =
adamc@875 1336 case t of
adamc@875 1337 String => box [string "in[",
adamc@875 1338 string (Int.toString i),
adamc@875 1339 string "].buffer = arg",
adamc@875 1340 string (Int.toString (i + 1)),
adamc@875 1341 string ";",
adamc@875 1342 newline,
adamc@875 1343 string "in_length",
adamc@875 1344 string (Int.toString i),
adamc@875 1345 string "= in[",
adamc@875 1346 string (Int.toString i),
adamc@875 1347 string "].buffer_length = strlen(arg",
adamc@875 1348 string (Int.toString (i + 1)),
adamc@875 1349 string ");",
adamc@875 1350 newline,
adamc@875 1351 string "in[",
adamc@875 1352 string (Int.toString i),
adamc@875 1353 string "].length = &in_length",
adamc@875 1354 string (Int.toString i),
adamc@875 1355 string ";",
adamc@875 1356 newline]
adamc@875 1357 | Blob => box [string "in[",
adamc@875 1358 string (Int.toString i),
adamc@875 1359 string "].buffer = arg",
adamc@875 1360 string (Int.toString (i + 1)),
adamc@875 1361 string ".data;",
adamc@875 1362 newline,
adamc@875 1363 string "in_length",
adamc@875 1364 string (Int.toString i),
adamc@875 1365 string "= in[",
adamc@875 1366 string (Int.toString i),
adamc@875 1367 string "].buffer_length = arg",
adamc@875 1368 string (Int.toString (i + 1)),
adamc@875 1369 string ".size;",
adamc@875 1370 newline,
adamc@875 1371 string "in[",
adamc@875 1372 string (Int.toString i),
adamc@875 1373 string "].length = &in_length",
adamc@875 1374 string (Int.toString i),
adamc@875 1375 string ";",
adamc@875 1376 newline]
adamc@875 1377 | Time =>
adamc@875 1378 let
adamc@875 1379 fun oneField dst src =
adamc@875 1380 box [string "in_buffer",
adamc@875 1381 string (Int.toString i),
adamc@875 1382 string ".",
adamc@875 1383 string dst,
adamc@875 1384 string " = tms.tm_",
adamc@875 1385 string src,
adamc@875 1386 string ";",
adamc@875 1387 newline]
adamc@875 1388 in
adamc@875 1389 box [string "({",
adamc@875 1390 newline,
adamc@875 1391 string "struct tm tms;",
adamc@875 1392 newline,
adamc@875 1393 string "if (localtime_r(&arg",
adamc@875 1394 string (Int.toString (i + 1)),
adam@1443 1395 string ".seconds, &tms) == NULL) uw_error(ctx, FATAL, \"",
adamc@875 1396 string (ErrorMsg.spanToString loc),
adamc@875 1397 string ": error converting to MySQL time\");",
adamc@875 1398 newline,
adamc@938 1399 oneField "year" "year + 1900",
adamc@938 1400 oneField "month" "mon + 1",
adamc@875 1401 oneField "day" "mday",
adam@1839 1402 oneField "hour" "hour",
adamc@875 1403 oneField "minute" "min",
adamc@875 1404 oneField "second" "sec",
adamc@875 1405 newline,
adamc@875 1406 string "in[",
adamc@875 1407 string (Int.toString i),
adamc@875 1408 string "].buffer = &in_buffer",
adamc@875 1409 string (Int.toString i),
adamc@875 1410 string ";",
adamc@933 1411 newline,
adamc@933 1412 string "});",
adamc@875 1413 newline]
adamc@875 1414 end
adamc@889 1415 | Channel => box [string "in_buffer",
adamc@889 1416 string (Int.toString i),
adamc@889 1417 string " = ((unsigned long long)arg",
adamc@889 1418 string (Int.toString (i + 1)),
adamc@889 1419 string ".cli << 32) | arg",
adamc@889 1420 string (Int.toString (i + 1)),
adamc@889 1421 string ".chn;",
adamc@889 1422 newline,
adamc@889 1423 string "in[",
adamc@889 1424 string (Int.toString i),
adamc@889 1425 string "].buffer = &in_buffer",
adamc@889 1426 string (Int.toString i),
adamc@889 1427 string ";",
adamc@889 1428 newline]
adam@1682 1429
adamc@875 1430 | _ => box [string "in[",
adamc@875 1431 string (Int.toString i),
adamc@875 1432 string "].buffer = &arg",
adamc@875 1433 string (Int.toString (i + 1)),
adamc@875 1434 string ";",
adamc@875 1435 newline]
adamc@875 1436 in
adamc@875 1437 box [string "in[",
adamc@875 1438 string (Int.toString i),
adamc@875 1439 string "].buffer_type = ",
adamc@875 1440 string (p_buffer_type t),
adamc@875 1441 string ";",
adamc@875 1442 newline,
adamc@889 1443
adamc@889 1444 case t of
adamc@889 1445 Channel => box [string "in[",
adamc@889 1446 string (Int.toString i),
adamc@889 1447 string "].is_unsigned = 1;",
adamc@889 1448 newline]
adamc@889 1449 | _ => box [],
adam@1682 1450
adamc@875 1451 case t of
adamc@875 1452 Nullable t => box [string "in[",
adamc@875 1453 string (Int.toString i),
adamc@875 1454 string "].is_null = &in_is_null",
adamc@875 1455 string (Int.toString i),
adamc@875 1456 string ";",
adamc@875 1457 newline,
adamc@875 1458 string "if (arg",
adamc@875 1459 string (Int.toString (i + 1)),
adamc@875 1460 string " == NULL) {",
adamc@875 1461 newline,
adamc@875 1462 box [string "in_is_null",
adamc@875 1463 string (Int.toString i),
adamc@875 1464 string " = 1;",
adamc@875 1465 newline],
adamc@875 1466 string "} else {",
adamc@875 1467 box [case t of
adamc@875 1468 String => box []
adamc@875 1469 | _ =>
adamc@875 1470 box [string (p_sql_ctype t),
adamc@875 1471 space,
adamc@876 1472 string "tmp = *arg",
adamc@876 1473 string (Int.toString (i + 1)),
adamc@876 1474 string ";",
adamc@876 1475 newline,
adamc@876 1476 string (p_sql_ctype t),
adamc@876 1477 space,
adamc@875 1478 string "arg",
adamc@875 1479 string (Int.toString (i + 1)),
adamc@876 1480 string " = tmp;",
adamc@875 1481 newline],
adamc@875 1482 string "in_is_null",
adamc@875 1483 string (Int.toString i),
adamc@875 1484 string " = 0;",
adamc@875 1485 newline,
adamc@875 1486 buffers t,
adamc@876 1487 newline],
adamc@876 1488 string "}",
adamc@876 1489 newline]
adam@1682 1490
adamc@875 1491 | _ => buffers t,
adamc@875 1492 newline]
adamc@875 1493 end) inputs,
adamc@875 1494 newline,
adamc@875 1495
adamc@875 1496 string "if (mysql_stmt_bind_param(stmt, in)) uw_error(ctx, FATAL, \"",
adamc@875 1497 string (ErrorMsg.spanToString loc),
adamc@875 1498 string ": error binding parameters\");",
adamc@875 1499 newline,
adamc@875 1500
adamc@875 1501 dmlCommon {loc = loc, dml = box [string "\"",
adam@1656 1502 string (Prim.toCString dml),
adam@1293 1503 string "\""], mode = mode}]
adamc@875 1504
adamc@878 1505 fun nextval {loc, seqE, seqName} =
adamc@878 1506 box [string "uw_conn *conn = uw_get_db(ctx);",
adamc@878 1507 newline,
adamc@878 1508 string "char *insert = ",
adamc@878 1509 case seqName of
adamc@878 1510 SOME s => string ("\"INSERT INTO " ^ s ^ " VALUES ()\"")
adamc@878 1511 | NONE => box [string "uw_Basis_strcat(ctx, \"INSERT INTO \", uw_Basis_strcat(ctx, ",
adamc@878 1512 seqE,
adamc@878 1513 string ", \" VALUES ()\"))"],
adamc@878 1514 string ";",
adamc@878 1515 newline,
adamc@878 1516 string "char *delete = ",
adamc@878 1517 case seqName of
adamc@878 1518 SOME s => string ("\"DELETE FROM " ^ s ^ "\"")
adamc@878 1519 | NONE => box [string "uw_Basis_strcat(ctx, \"DELETE FROM \", ",
adamc@878 1520 seqE,
adamc@878 1521 string ")"],
adamc@878 1522 string ";",
adamc@878 1523 newline,
adamc@878 1524 newline,
adamc@878 1525
adamc@878 1526 string "if (mysql_query(conn->conn, insert)) uw_error(ctx, FATAL, \"'nextval' INSERT failed\");",
adamc@878 1527 newline,
adamc@878 1528 string "n = mysql_insert_id(conn->conn);",
adamc@878 1529 newline,
adamc@878 1530 string "if (mysql_query(conn->conn, delete)) uw_error(ctx, FATAL, \"'nextval' DELETE failed\");",
adamc@878 1531 newline]
adamc@878 1532
adamc@878 1533 fun nextvalPrepared _ = raise Fail "MySQL.nextvalPrepared called"
adamc@867 1534
adamc@1073 1535 fun setval _ = raise Fail "MySQL.setval called"
adamc@1073 1536
adamc@877 1537 fun sqlifyString s = "'" ^ String.translate (fn #"'" => "\\'"
adamc@877 1538 | #"\\" => "\\\\"
adamc@877 1539 | ch =>
adamc@877 1540 if Char.isPrint ch then
adamc@877 1541 str ch
adamc@877 1542 else
adamc@877 1543 (ErrorMsg.error
adamc@877 1544 "Non-printing character found in SQL string literal";
adamc@877 1545 ""))
adam@1656 1546 (Prim.toCString s) ^ "'"
adamc@874 1547
adamc@877 1548 fun p_cast (s, _) = s
adamc@874 1549
adamc@874 1550 fun p_blank _ = "?"
adamc@874 1551
adamc@866 1552 val () = addDbms {name = "mysql",
adam@1464 1553 header = Config.msheader,
adam@1682 1554 randomFunction = "RAND",
adamc@866 1555 link = "-lmysqlclient",
adamc@867 1556 init = init,
adamc@873 1557 p_sql_type = p_sql_type,
adamc@867 1558 query = query,
adamc@868 1559 queryPrepared = queryPrepared,
adamc@868 1560 dml = dml,
adamc@869 1561 dmlPrepared = dmlPrepared,
adamc@869 1562 nextval = nextval,
adamc@874 1563 nextvalPrepared = nextvalPrepared,
adamc@1073 1564 setval = setval,
adamc@874 1565 sqlifyString = sqlifyString,
adamc@874 1566 p_cast = p_cast,
adamc@874 1567 p_blank = p_blank,
adamc@877 1568 supportsDeleteAs = false,
adamc@886 1569 supportsUpdateAs = false,
adamc@884 1570 createSequence = fn s => "CREATE TABLE " ^ s ^ " (uw_id INTEGER PRIMARY KEY AUTO_INCREMENT)",
adamc@878 1571 textKeysNeedLengths = true,
adamc@879 1572 supportsNextval = false,
adamc@882 1573 supportsNestedPrepared = false,
adamc@890 1574 sqlPrefix = "SET storage_engine=InnoDB;\n\n",
adamc@1014 1575 supportsOctetLength = true,
adamc@1014 1576 trueString = "TRUE",
adamc@1196 1577 falseString = "FALSE",
adamc@1196 1578 onlyUnion = true,
adam@1777 1579 nestedRelops = false,
adam@1777 1580 windowFunctions = false}
adamc@866 1581
adamc@866 1582 end