git.m6w6.name Git - m6w6/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 %error-verbose
  22 %debug
  23 %defines
  24 %expect 0
  25 %output "libmemcached/options/parser.cc"
  26 %defines "libmemcached/options/parser.h"
  27 %lex-param { yyscan_t *scanner }
  28 %name-prefix="libmemcached_"
  29 %parse-param { Context *parser }
  30 %parse-param { yyscan_t *scanner }
  31 %locations
  32 %pure-parser
  33 %require "2.2"
  34 %start statement
  35 %verbose
  36
  37 %{
  38
  39 #include <config.h>
  40
  41 #include <stdint.h>
  42 #include <iostream>
  43 #include <sstream>
  44 #include <string>
  45
  46 #include <libmemcached/options/context.h>
  47 #include <libmemcached/options/string.h>
  48 #include <libmemcached/options/symbol.h>
  49
  50 #pragma GCC diagnostic ignored "-Wold-style-cast"
  51 #include <libmemcached/options/scanner.h>
  52
  53 int libmemcached_lex(YYSTYPE* lvalp, YYLTYPE* llocp, void* scanner);
  54
  55 inline void libmemcached_error(YYLTYPE *locp, Context *context, yyscan_t *scanner, const char *error)
  56 {
  57   memcached_string_t local_string;
  58   std::cerr << " Error " << error << std::endl;
  59   local_string.size= strlen(context->begin);
  60   local_string.c_str= context->begin;
  61   memcached_set_error(context->memc, MEMCACHED_PARSE_ERROR, &local_string);
  62 }
  63
  64 %}
  65
  66 %token COMMENT
  67 %token CONFIGURE_FILE
  68 %token EMPTY_LINE
  69 %token SERVER
  70 %token SERVERS
  71 %token UNKNOWN_OPTION
  72 %token UNKNOWN
  73
  74 /* All behavior options */
  75 %token AUTO_EJECT_HOSTS
  76 %token BINARY_PROTOCOL
  77 %token BUFFER_REQUESTS
  78 %token CACHE_LOOKUPS
  79 %token CONNECT_TIMEOUT
  80 %token _CORK
  81 %token DISTRIBUTION
  82 %token HASH
  83 %token HASH_WITH_PREFIX_KEY
  84 %token IO_BYTES_WATERMARK
  85 %token IO_KEY_PREFETCH
  86 %token IO_MSG_WATERMARK
  87 %token KETAMA
  88 %token KETAMA_HASH
  89 %token KETAMA_WEIGHTED
  90 %token NOREPLY
  91 %token NUMBER_OF_REPLICAS
  92 %token POLL_TIMEOUT
  93 %token RANDOMIZE_REPLICA_READ
  94 %token RCV_TIMEOUT
  95 %token RETRY_TIMEOUT
  96 %token SERVER_FAILURE_LIMIT
  97 %token SND_TIMEOUT
  98 %token SOCKET_RECV_SIZE
  99 %token SOCKET_SEND_SIZE
 100 %token SORT_HOSTS
 101 %token SUPPORT_CAS
 102 %token _TCP_NODELAY
 103 %token _TCP_KEEPALIVE
 104 %token _TCP_KEEPIDLE
 105 %token USER_DATA
 106 %token USE_UDP
 107 %token VERIFY_KEY
 108
 109 /* Callbacks */
 110 %token PREFIX_KEY
 111
 112 /* Hash types */
 113 %token MD5
 114 %token CRC
 115 %token FNV1_64
 116 %token FNV1A_64
 117 %token FNV1_32
 118 %token FNV1A_32
 119 %token HSIEH
 120 %token MURMUR
 121 %token JENKINS
 122
 123 /* Distributions */
 124 %token CONSISTENT
 125 %token MODULA
 126 %token RANDOM
 127
 128 %nonassoc ','
 129 %nonassoc '='
 130
 131 %token <number> NUMBER
 132 %token <number> FLOAT
 133 %token <string> HOSTNAME
 134 %token <string> HOSTNAME_WITH_PORT
 135 %token <string> IPADDRESS
 136 %token <string> IPADDRESS_WITH_PORT
 137 %token <string> STRING
 138 %token <string> QUOTED_STRING
 139
 140 %type <server> server
 141 %type <string> string
 142 %type <distribution> distribution
 143 %type <hash> hash
 144 %type <behavior> behavior_boolean
 145 %type <behavior> behavior_number
 146
 147 %%
 148
 149 statement:
 150          expression
 151           { }
 152         | statement ' ' expression
 153           { }
 154         | COMMENT
 155           { }
 156         | EMPTY_LINE
 157           { }
 158         ;
 159
 160
 161 expression:
 162           SERVER '=' server
 163           {
 164             if (memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0) != MEMCACHED_SUCCESS)
 165               YYERROR;
 166           }
 167         | SERVERS '=' server_list
 168           {
 169           }
 170         | CONFIGURE_FILE '=' string
 171           {
 172             memcached_set_configuration_file(parser->memc, $3.c_str, $3.length);
 173           }
 174         | behaviors
 175         ;
 176
 177 behaviors:
 178           PREFIX_KEY '=' string
 179           {
 180             memcached_return_t rc;
 181             if ((rc= memcached_callback_set(parser->memc, MEMCACHED_CALLBACK_PREFIX_KEY, std::string($3.c_str, $3.length).c_str())) != MEMCACHED_SUCCESS)
 182             {
 183               std::stringstream ss;
 184               ss << "--PREFIX-KEY" << $3;
 185               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 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               std::stringstream ss;
 195               ss << "--DISTRIBUTION=" << libmemcached_string_distribution($3);
 196               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 197               YYERROR;
 198             }
 199           }
 200         | HASH '=' hash
 201           {
 202             memcached_return_t rc;
 203             if ((rc= memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_HASH, $3)) != MEMCACHED_SUCCESS)
 204             {
 205               std::stringstream ss;
 206               ss << "--HASH=" << libmemcached_string_hash($3);
 207               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 208               YYERROR;
 209             }
 210           }
 211         | KETAMA_HASH '=' hash
 212           {
 213             memcached_return_t rc;
 214             if ((rc= memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_KETAMA_HASH, $3)) != MEMCACHED_SUCCESS)
 215             {
 216               std::stringstream ss;
 217               ss << "--KETAMA-HASH=" << libmemcached_string_hash($3);
 218               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 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               std::stringstream ss;
 228               ss << "--" << libmemcached_string_behavior($1) << "=" << $3;
 229               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 230               YYERROR;
 231             }
 232           }
 233         | behavior_boolean
 234           {
 235             memcached_return_t rc;
 236             if ((rc= memcached_behavior_set(parser->memc, $1, true)) != MEMCACHED_SUCCESS)
 237             {
 238               std::stringstream ss;
 239               ss << "--" << libmemcached_string_behavior($1);
 240               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 241               YYERROR;
 242             }
 243           }
 244         |  USER_DATA
 245           {
 246           }
 247         ;
 248
 249 behavior_number:
 250           CONNECT_TIMEOUT
 251           {
 252             $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
 253           }
 254         | IO_MSG_WATERMARK
 255           {
 256             $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
 257           }
 258         | IO_BYTES_WATERMARK
 259           {
 260             $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
 261           }
 262         | IO_KEY_PREFETCH
 263           {
 264             $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
 265           }
 266         | NUMBER_OF_REPLICAS
 267           {
 268             $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
 269           }
 270         | POLL_TIMEOUT
 271           {
 272             $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
 273           }
 274         |  RCV_TIMEOUT
 275           {
 276             $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
 277           }
 278         |  RETRY_TIMEOUT
 279           {
 280             $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
 281           }
 282         |  SERVER_FAILURE_LIMIT
 283           {
 284             $$= MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT;
 285           }
 286         |  SND_TIMEOUT
 287           {
 288             $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
 289           }
 290         |  SOCKET_RECV_SIZE
 291           {
 292             $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
 293           }
 294         |  SOCKET_SEND_SIZE
 295           {
 296             $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
 297           }
 298         ;
 299
 300 behavior_boolean:
 301           AUTO_EJECT_HOSTS
 302           {
 303             $$= MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS;
 304           }
 305         | BINARY_PROTOCOL
 306           {
 307             $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
 308           }
 309         | BUFFER_REQUESTS
 310           {
 311             $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
 312           }
 313         | CACHE_LOOKUPS
 314           {
 315             $$= MEMCACHED_BEHAVIOR_CACHE_LOOKUPS;
 316           }
 317         | _CORK
 318           {
 319             $$= MEMCACHED_BEHAVIOR_CORK;
 320           }
 321         | HASH_WITH_PREFIX_KEY
 322           {
 323             $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
 324           }
 325         | KETAMA
 326           {
 327             $$= MEMCACHED_BEHAVIOR_KETAMA;
 328           }
 329         | KETAMA_WEIGHTED
 330           {
 331             $$= MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
 332           }
 333         | NOREPLY
 334           {
 335             $$= MEMCACHED_BEHAVIOR_NOREPLY;
 336           }
 337         |  RANDOMIZE_REPLICA_READ
 338           {
 339             $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
 340           }
 341         |  SORT_HOSTS
 342           {
 343             $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
 344           }
 345         |  SUPPORT_CAS
 346           {
 347             $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
 348           }
 349         |  _TCP_NODELAY
 350           {
 351             $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
 352           }
 353         |  _TCP_KEEPALIVE
 354           {
 355             $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
 356           }
 357         |  _TCP_KEEPIDLE
 358           {
 359             $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
 360           }
 361         |  USE_UDP
 362           {
 363             $$= MEMCACHED_BEHAVIOR_USE_UDP;
 364           }
 365         |  VERIFY_KEY
 366           {
 367             $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
 368           }
 369
 370
 371 server_list:
 372            server
 373           {
 374             memcached_return_t rc;
 375             if ((rc= memcached_server_add_parsed(parser->memc, $1.c_str, $1.length, $1.port, 0)) != MEMCACHED_SUCCESS)
 376             {
 377               std::stringstream ss;
 378               ss << "--SERVER=" << $1;
 379               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 380               YYERROR;
 381             }
 382           }
 383         | server_list ',' server
 384           {
 385             memcached_return_t rc;
 386             if ((rc= memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0)) != MEMCACHED_SUCCESS)
 387             {
 388               std::stringstream ss;
 389               ss << "--SERVERS=" << $3;
 390               memcached_set_error_string(parser->memc, rc, ss.str().c_str(), ss.str().length());
 391               YYERROR;
 392             }
 393           }
 394         ;
 395
 396 server:
 397           HOSTNAME_WITH_PORT NUMBER
 398           {
 399             $$.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         ;