git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/options/parser.yy

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached Scanner and Parser
   4  *
   5  *  Copyright (C) 2011 DataDifferental, http://datadifferential.com
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU Affero General Public License as
   9  *  published by the Free Software Foundation, either version 3 of the
  10  *  License, or (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Affero General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Affero General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 %{
  22
  23 #include <config.h>
  24
  25 #include <stdint.h>
  26 #include <iostream>
  27 #include <sstream>
  28 #include <string>
  29
  30 #include <libmemcached/options/type.h>
  31 #include <libmemcached/options/string.h>
  32 #include <libmemcached/options/symbol.h>
  33
  34 #pragma GCC diagnostic ignored "-Wold-style-cast"
  35 #include <libmemcached/options/scanner.h>
  36
  37 inline void libmemcached_error(YYLTYPE *locp, type_st *parser, yyscan_t *scanner, const char *str)
  38 {
  39   memcached_string_t local_string;
  40   local_string.size= strlen(str);
  41   local_string.c_str= str;
  42   memcached_set_error(parser->memc, MEMCACHED_FAILURE, &local_string);
  43 }
  44
  45
  46 %}
  47
  48 %error-verbose
  49 %debug
  50 %defines
  51 %expect 0
  52 %output "libmemcached/options/parser.cc"
  53 %defines "libmemcached/options/parser.h"
  54 %lex-param { yyscan_t *scanner }
  55 %name-prefix="libmemcached_"
  56 %parse-param { type_st *parser }
  57 %parse-param { yyscan_t *scanner }
  58 %locations
  59 %pure-parser
  60 %require "2.2"
  61 %start statement
  62 %verbose
  63
  64 %token COMMENT
  65 %token CONFIGURE_FILE
  66 %token EMPTY_LINE
  67 %token SERVER
  68 %token SERVERS
  69 %token UNKNOWN
  70
  71 %token DASH_OPTION
  72
  73 /* All behavior options */
  74 %token AUTO_EJECT_HOSTS
  75 %token BINARY_PROTOCOL
  76 %token BUFFER_REQUESTS
  77 %token CACHE_LOOKUPS
  78 %token CONNECT_TIMEOUT
  79 %token _CORK
  80 %token DISTRIBUTION
  81 %token HASH
  82 %token HASH_WITH_PREFIX_KEY
  83 %token IO_BYTES_WATERMARK
  84 %token IO_KEY_PREFETCH
  85 %token IO_MSG_WATERMARK
  86 %token KETAMA
  87 %token KETAMA_HASH
  88 %token KETAMA_WEIGHTED
  89 %token NOREPLY
  90 %token NUMBER_OF_REPLICAS
  91 %token POLL_TIMEOUT
  92 %token RANDOMIZE_REPLICA_READ
  93 %token RCV_TIMEOUT
  94 %token RETRY_TIMEOUT
  95 %token SERVER_FAILURE_LIMIT
  96 %token SND_TIMEOUT
  97 %token SOCKET_RECV_SIZE
  98 %token SOCKET_SEND_SIZE
  99 %token SORT_HOSTS
 100 %token SUPPORT_CAS
 101 %token _TCP_NODELAY
 102 %token _TCP_KEEPALIVE
 103 %token _TCP_KEEPIDLE
 104 %token USER_DATA
 105 %token USE_UDP
 106 %token VERIFY_KEY
 107
 108 /* Callbacks */
 109 %token PREFIX_KEY
 110
 111 /* Hash types */
 112 %token MD5
 113 %token CRC
 114 %token FNV1_64
 115 %token FNV1A_64
 116 %token FNV1_32
 117 %token FNV1A_32
 118 %token HSIEH
 119 %token MURMUR
 120 %token JENKINS
 121
 122 /* Distributions */
 123 %token CONSISTENT
 124 %token MODULA
 125 %token RANDOM
 126
 127 %nonassoc ','
 128 %nonassoc '='
 129
 130 %token <number> NUMBER
 131 %token <number> FLOAT
 132 %token <string> HOSTNAME
 133 %token <string> HOSTNAME_WITH_PORT
 134 %token <string> IPADDRESS
 135 %token <string> IPADDRESS_WITH_PORT
 136 %token <string> STRING
 137 %token <string> QUOTED_STRING
 138
 139 %type <server> server
 140 %type <string> string
 141 %type <distribution> distribution
 142 %type <hash> hash
 143 %type <behavior> behavior_boolean
 144 %type <behavior> behavior_number
 145
 146 %%
 147
 148 statement:
 149          DASH_OPTION expression
 150           { }
 151         | statement ' ' DASH_OPTION expression
 152           { }
 153         | COMMENT
 154           { }
 155         | EMPTY_LINE
 156           { }
 157         ;
 158
 159
 160 expression:
 161           SERVER '=' server
 162           {
 163             if (memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0) != MEMCACHED_SUCCESS)
 164               YYERROR;
 165           }
 166         | SERVERS '=' server_list
 167           {
 168           }
 169         | CONFIGURE_FILE '=' string
 170           {
 171             memcached_set_configuration_file(parser->memc, $3.c_str, $3.length);
 172           }
 173         | behaviors
 174         ;
 175
 176 behaviors:
 177           PREFIX_KEY '=' string
 178           {
 179             memcached_return_t rc;
 180             if ((rc= memcached_callback_set(parser->memc, MEMCACHED_CALLBACK_PREFIX_KEY, std::string($3.c_str, $3.length).c_str())) != MEMCACHED_SUCCESS)
 181             {
 182               std::string error_message("--PREFIX-KEY");
 183               error_message.append($3.c_str, $3.length);
 184               memcached_string_t tmp= memcached_string_make(error_message.c_str(), error_message.size());
 185               memcached_set_error(parser->memc, rc, &tmp);
 186               YYERROR;
 187             }
 188           }
 189         | DISTRIBUTION '=' distribution
 190           {
 191             memcached_return_t rc;
 192             if ((rc= memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3)) != MEMCACHED_SUCCESS)
 193             {
 194               memcached_string_t tmp=  memcached_string_make(memcached_string_with_size("--DISTRIBUTION"));
 195               memcached_set_error(parser->memc, rc, &tmp);
 196               YYERROR;
 197             }
 198           }
 199         | HASH '=' hash
 200           {
 201             memcached_return_t rc;
 202             if ((rc= memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_HASH, $3)) != MEMCACHED_SUCCESS)
 203             {
 204               std::string buffer;
 205               buffer+= "--HASH=";
 206               buffer+= libmemcached_string_hash($3);
 207               memcached_string_t tmp=  memcached_string_make(buffer.c_str(), buffer.size());
 208               memcached_set_error(parser->memc, rc, &tmp);
 209               YYERROR;
 210             }
 211           }
 212         | KETAMA_HASH '=' hash
 213           {
 214             memcached_return_t rc;
 215             if ((rc= memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_KETAMA_HASH, $3)) != MEMCACHED_SUCCESS)
 216             {
 217               memcached_string_t tmp=  memcached_string_make(memcached_string_with_size("--KETAMA-HASH"));
 218               memcached_set_error(parser->memc, rc, &tmp);
 219               YYERROR;
 220             }
 221           }
 222         | behavior_number '=' NUMBER
 223           {
 224             memcached_return_t rc;
 225             if ((rc= memcached_behavior_set(parser->memc, $1, $3)) != MEMCACHED_SUCCESS)
 226             {
 227               memcached_string_t tmp= memcached_string_make(libmemcached_string_behavior($1), strlen(libmemcached_string_behavior($1)));
 228               memcached_set_error(parser->memc, rc, &tmp);
 229               YYERROR;
 230             }
 231           }
 232         | behavior_boolean
 233           {
 234             memcached_return_t rc;
 235             if ((rc= memcached_behavior_set(parser->memc, $1, true)) != MEMCACHED_SUCCESS)
 236             {
 237               memcached_string_t tmp= memcached_string_make(libmemcached_string_behavior($1), strlen(libmemcached_string_behavior($1)));
 238               memcached_set_error(parser->memc, rc, &tmp);
 239               YYERROR;
 240             }
 241           }
 242         |  USER_DATA
 243           {
 244           }
 245         ;
 246
 247 behavior_number:
 248           CONNECT_TIMEOUT
 249           {
 250             $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
 251           }
 252         | IO_MSG_WATERMARK
 253           {
 254             $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
 255           }
 256         | IO_BYTES_WATERMARK
 257           {
 258             $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
 259           }
 260         | IO_KEY_PREFETCH
 261           {
 262             $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
 263           }
 264         | NUMBER_OF_REPLICAS
 265           {
 266             $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
 267           }
 268         | POLL_TIMEOUT
 269           {
 270             $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
 271           }
 272         |  RCV_TIMEOUT
 273           {
 274             $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
 275           }
 276         |  RETRY_TIMEOUT
 277           {
 278             $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
 279           }
 280         |  SERVER_FAILURE_LIMIT
 281           {
 282             $$= MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT;
 283           }
 284         |  SND_TIMEOUT
 285           {
 286             $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
 287           }
 288         |  SOCKET_RECV_SIZE
 289           {
 290             $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
 291           }
 292         |  SOCKET_SEND_SIZE
 293           {
 294             $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
 295           }
 296         ;
 297
 298 behavior_boolean:
 299           AUTO_EJECT_HOSTS
 300           {
 301             $$= MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS;
 302           }
 303         | BINARY_PROTOCOL
 304           {
 305             $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
 306           }
 307         | BUFFER_REQUESTS
 308           {
 309             $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
 310           }
 311         | CACHE_LOOKUPS
 312           {
 313             $$= MEMCACHED_BEHAVIOR_CACHE_LOOKUPS;
 314           }
 315         | _CORK
 316           {
 317             $$= MEMCACHED_BEHAVIOR_CORK;
 318           }
 319         | HASH_WITH_PREFIX_KEY
 320           {
 321             $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
 322           }
 323         | KETAMA
 324           {
 325             $$= MEMCACHED_BEHAVIOR_KETAMA;
 326           }
 327         | KETAMA_WEIGHTED
 328           {
 329             $$= MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
 330           }
 331         | NOREPLY
 332           {
 333             $$= MEMCACHED_BEHAVIOR_NOREPLY;
 334           }
 335         |  RANDOMIZE_REPLICA_READ
 336           {
 337             $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
 338           }
 339         |  SORT_HOSTS
 340           {
 341             $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
 342           }
 343         |  SUPPORT_CAS
 344           {
 345             $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
 346           }
 347         |  _TCP_NODELAY
 348           {
 349             $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
 350           }
 351         |  _TCP_KEEPALIVE
 352           {
 353             $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
 354           }
 355         |  _TCP_KEEPIDLE
 356           {
 357             $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
 358           }
 359         |  USE_UDP
 360           {
 361             $$= MEMCACHED_BEHAVIOR_USE_UDP;
 362           }
 363         |  VERIFY_KEY
 364           {
 365             $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
 366           }
 367
 368
 369 server_list:
 370            server
 371           {
 372             memcached_return_t rc;
 373             if ((rc= memcached_server_add_parsed(parser->memc, $1.c_str, $1.length, $1.port, 0)) != MEMCACHED_SUCCESS)
 374             {
 375               std::stringstream ss;
 376               ss << "--SERVER=" << $1;
 377               memcached_string_t tmp=  memcached_string_make(ss.str().c_str(), ss.str().length());
 378               memcached_set_error(parser->memc, rc, &tmp);
 379               YYERROR;
 380             }
 381           }
 382         | server_list ',' server
 383           {
 384             memcached_return_t rc;
 385             if ((rc= memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0)) != MEMCACHED_SUCCESS)
 386             {
 387               std::stringstream ss;
 388               ss << "--SERVERS=" << $3;
 389               memcached_string_t tmp=  memcached_string_make(ss.str().c_str(), ss.str().length());
 390               memcached_set_error(parser->memc, rc, &tmp);
 391               YYERROR;
 392             }
 393           }
 394         ;
 395
 396 server:
 397           HOSTNAME_WITH_PORT NUMBER
 398           {
 399             $$.c_str= $1.c_str;
 400             $$.length= $1.length -1;
 401             $$.port= $2;
 402           }
 403         | HOSTNAME
 404           {
 405             $$.c_str= $1.c_str;
 406             $$.length= $1.length;
 407             $$.port= MEMCACHED_DEFAULT_PORT;
 408           }
 409         | STRING /* a match can be against "localhost" which is just a string */
 410           {
 411             $$.c_str= $1.c_str;
 412             $$.length= $1.length;
 413             $$.port= MEMCACHED_DEFAULT_PORT;
 414           }
 415         | IPADDRESS_WITH_PORT NUMBER
 416           {
 417             $$.c_str= $1.c_str;
 418             $$.length= $1.length -1;
 419             $$.port= $2;
 420           }
 421         | IPADDRESS
 422           {
 423             $$.c_str= $1.c_str;
 424             $$.length= $1.length;
 425             $$.port= MEMCACHED_DEFAULT_PORT;
 426           }
 427         ;
 428
 429 hash:
 430           MD5
 431           {
 432             $$= MEMCACHED_HASH_MD5;
 433           }
 434         | CRC
 435           {
 436             $$= MEMCACHED_HASH_CRC;
 437           }
 438         | FNV1_64
 439           {
 440             $$= MEMCACHED_HASH_FNV1_64;
 441           }
 442         | FNV1A_64
 443           {
 444             $$= MEMCACHED_HASH_FNV1A_64;
 445           }
 446         | FNV1_32
 447           {
 448             $$= MEMCACHED_HASH_FNV1_32;
 449           }
 450         | FNV1A_32
 451           {
 452             $$= MEMCACHED_HASH_FNV1A_32;
 453           }
 454         | HSIEH
 455           {
 456             $$= MEMCACHED_HASH_HSIEH;
 457           }
 458         | MURMUR
 459           {
 460             $$= MEMCACHED_HASH_MURMUR;
 461           }
 462         | JENKINS
 463           {
 464             $$= MEMCACHED_HASH_JENKINS;
 465           }
 466         ;
 467
 468 string:
 469           STRING
 470           {
 471             $$= $1;
 472           }
 473         | QUOTED_STRING
 474           {
 475             $$.c_str= $1.c_str +1;
 476             $$.length= $1.length -2;
 477           }
 478         ;
 479
 480 distribution:
 481           CONSISTENT
 482           {
 483             $$= MEMCACHED_DISTRIBUTION_CONSISTENT;
 484           }
 485         | MODULA
 486           {
 487             $$= MEMCACHED_DISTRIBUTION_MODULA;
 488           }
 489         | RANDOM
 490           {
 491             $$= MEMCACHED_DISTRIBUTION_RANDOM;
 492           }
 493         ;