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 %{
  22
  23 #include <stdint.h>
  24 #include <iostream>
  25
  26 #include <libmemcached/options/type.h>
  27 #include <libmemcached/options/string.h>
  28 #include <libmemcached/options/symbol.h>
  29
  30 #pragma GCC diagnostic ignored "-Wold-style-cast"
  31 #include <libmemcached/options/scanner.h>
  32
  33 inline int libmemcached_error(YYLTYPE *locp, type_st *parser, yyscan_t *scanner, const char *str)
  34 {
  35 #if 0
  36   std::cerr << str << std::endl;
  37 #endif
  38   return 0;
  39 }
  40
  41
  42 %}
  43
  44 %error-verbose
  45 %debug
  46 %defines
  47 %expect 0
  48 %output "libmemcached/options/parser.cc"
  49 %defines "libmemcached/options/parser.h"
  50 %lex-param { yyscan_t *scanner }
  51 %name-prefix="libmemcached_"
  52 %parse-param { type_st *parser }
  53 %parse-param { yyscan_t *scanner }
  54 %locations
  55 %pure-parser
  56 %require "2.2"
  57 %start statement
  58 %verbose
  59
  60 %token SERVER
  61 %token SERVERS
  62 %token UNKNOWN
  63
  64 %token DASH_OPTION
  65
  66 /* All behavior options */
  67 %token AUTO_EJECT_HOSTS
  68 %token BINARY_PROTOCOL
  69 %token BUFFER_REQUESTS
  70 %token CACHE_LOOKUPS
  71 %token CONNECT_TIMEOUT
  72 %token _CORK
  73 %token DISTRIBUTION
  74 %token HASH
  75 %token HASH_WITH_PREFIX_KEY
  76 %token IO_BYTES_WATERMARK
  77 %token IO_KEY_PREFETCH
  78 %token IO_MSG_WATERMARK
  79 %token KETAMA
  80 %token KETAMA_HASH
  81 %token KETAMA_WEIGHTED
  82 %token NOREPLY
  83 %token NUMBER_OF_REPLICAS
  84 %token POLL_TIMEOUT
  85 %token RANDOMIZE_REPLICA_READ
  86 %token RCV_TIMEOUT
  87 %token RETRY_TIMEOUT
  88 %token SERVER_FAILURE_LIMIT
  89 %token SND_TIMEOUT
  90 %token SOCKET_RECV_SIZE
  91 %token SOCKET_SEND_SIZE
  92 %token SORT_HOSTS
  93 %token SUPPORT_CAS
  94 %token _TCP_NODELAY
  95 %token _TCP_KEEPALIVE
  96 %token _TCP_KEEPIDLE
  97 %token USER_DATA
  98 %token USE_UDP
  99 %token VERIFY_KEY
 100
 101 /* Hash types */
 102 %token MD5
 103 %token CRC
 104 %token FNV1_64
 105 %token FNV1A_64
 106 %token FNV1_32
 107 %token FNV1A_32
 108 %token HSIEH
 109 %token MURMUR
 110 %token JENKINS
 111
 112 /* Distributions */
 113 %token CONSISTENT
 114 %token MODULA
 115 %token RANDOM
 116
 117 %nonassoc ','
 118 %nonassoc '='
 119
 120 %token <number> NUMBER
 121 %token <number> FLOAT
 122 %token <string> IDENTIFIER
 123 %token <string> SERVER_WITH_PORT
 124 %token <string> IPADDRESS
 125 %token <string> IPADDRESS_WITH_PORT
 126
 127 %type <server> server
 128 %type <distribution> distribution
 129 %type <hash> hash
 130 %type <behavior> behavior_boolean
 131 %type <behavior> behavior_number
 132
 133 %%
 134
 135 statement:
 136          DASH_OPTION expression
 137           { }
 138         | statement ' ' DASH_OPTION expression
 139           { }
 140         ;
 141
 142
 143 expression:
 144           SERVER '=' server
 145           {
 146             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 147           }
 148         | SERVERS '=' server_list
 149           {
 150           }
 151         | behaviors
 152         ;
 153
 154 behaviors:
 155         | DISTRIBUTION '=' distribution
 156           {
 157             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 158           }
 159         | HASH '=' hash
 160           {
 161             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $3);
 162           }
 163         | KETAMA_HASH '=' hash
 164           {
 165             memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_KETAMA_HASH, $3);
 166           }
 167         | behavior_number '=' NUMBER
 168           {
 169             memcached_behavior_set(parser->memc, $1, $3);
 170           }
 171         | behavior_boolean
 172           {
 173             memcached_behavior_set(parser->memc, $1, true);
 174           }
 175         |  USER_DATA
 176           {
 177           }
 178         ;
 179
 180 behavior_number:
 181           CONNECT_TIMEOUT
 182           {
 183             $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
 184           }
 185         | IO_MSG_WATERMARK
 186           {
 187             $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
 188           }
 189         | IO_BYTES_WATERMARK
 190           {
 191             $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
 192           }
 193         | IO_KEY_PREFETCH
 194           {
 195             $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
 196           }
 197         | NUMBER_OF_REPLICAS
 198           {
 199             $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
 200           }
 201         | POLL_TIMEOUT
 202           {
 203             $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
 204           }
 205         |  RCV_TIMEOUT
 206           {
 207             $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
 208           }
 209         |  RETRY_TIMEOUT
 210           {
 211             $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
 212           }
 213         |  SERVER_FAILURE_LIMIT
 214           {
 215             $$= MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT;
 216           }
 217         |  SND_TIMEOUT
 218           {
 219             $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
 220           }
 221         |  SOCKET_RECV_SIZE
 222           {
 223             $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
 224           }
 225         |  SOCKET_SEND_SIZE
 226           {
 227             $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
 228           }
 229         ;
 230
 231 behavior_boolean:
 232           AUTO_EJECT_HOSTS
 233           {
 234             $$= MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS;
 235           }
 236         | BINARY_PROTOCOL
 237           {
 238             $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
 239           }
 240         | BUFFER_REQUESTS
 241           {
 242             $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
 243           }
 244         | CACHE_LOOKUPS
 245           {
 246             $$= MEMCACHED_BEHAVIOR_CACHE_LOOKUPS;
 247           }
 248         | _CORK
 249           {
 250             $$= MEMCACHED_BEHAVIOR_CORK;
 251           }
 252         | HASH_WITH_PREFIX_KEY
 253           {
 254             $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
 255           }
 256         | KETAMA
 257           {
 258             $$= MEMCACHED_BEHAVIOR_KETAMA;
 259           }
 260         | KETAMA_WEIGHTED
 261           {
 262             $$= MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED;
 263           }
 264         | NOREPLY
 265           {
 266             $$= MEMCACHED_BEHAVIOR_NOREPLY;
 267           }
 268         |  RANDOMIZE_REPLICA_READ
 269           {
 270             $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
 271           }
 272         |  SORT_HOSTS
 273           {
 274             $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
 275           }
 276         |  SUPPORT_CAS
 277           {
 278             $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
 279           }
 280         |  _TCP_NODELAY
 281           {
 282             $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
 283           }
 284         |  _TCP_KEEPALIVE
 285           {
 286             $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
 287           }
 288         |  _TCP_KEEPIDLE
 289           {
 290             $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
 291           }
 292         |  USE_UDP
 293           {
 294             $$= MEMCACHED_BEHAVIOR_USE_UDP;
 295           }
 296         |  VERIFY_KEY
 297           {
 298             $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
 299           }
 300
 301
 302 server_list:
 303            server
 304           {
 305             (void) memcached_server_add_parsed(parser->memc, $1.c_str, $1.length, $1.port, 0);
 306           }
 307         | server_list ',' server
 308           {
 309             (void) memcached_server_add_parsed(parser->memc, $3.c_str, $3.length, $3.port, 0);
 310           }
 311         ;
 312
 313 server:
 314           SERVER_WITH_PORT NUMBER
 315           {
 316             $$.c_str= $1.c_str;
 317             $$.length= $1.length -1;
 318             $$.port= $2;
 319           }
 320         | IDENTIFIER
 321           {
 322             $$.c_str= $1.c_str;
 323             $$.length= $1.length;
 324             $$.port= MEMCACHED_DEFAULT_PORT;
 325           }
 326         | IPADDRESS_WITH_PORT NUMBER
 327           {
 328             $$.c_str= $1.c_str;
 329             $$.length= $1.length -1;
 330             $$.port= $2;
 331           }
 332         | IPADDRESS
 333           {
 334             $$.c_str= $1.c_str;
 335             $$.length= $1.length;
 336             $$.port= MEMCACHED_DEFAULT_PORT;
 337           }
 338         ;
 339
 340 hash:
 341           MD5
 342           {
 343             $$= MEMCACHED_HASH_MD5;
 344           }
 345         | CRC
 346           {
 347             $$= MEMCACHED_HASH_CRC;
 348           }
 349         | FNV1_64
 350           {
 351             $$= MEMCACHED_HASH_FNV1_64;
 352           }
 353         | FNV1A_64
 354           {
 355             $$= MEMCACHED_HASH_FNV1A_64;
 356           }
 357         | FNV1_32
 358           {
 359             $$= MEMCACHED_HASH_FNV1_32;
 360           }
 361         | FNV1A_32
 362           {
 363             $$= MEMCACHED_HASH_FNV1A_32;
 364           }
 365         | HSIEH
 366           {
 367             $$= MEMCACHED_HASH_HSIEH;
 368           }
 369         | MURMUR
 370           {
 371             $$= MEMCACHED_HASH_MURMUR;
 372           }
 373         | JENKINS
 374           {
 375             $$= MEMCACHED_HASH_JENKINS;
 376           }
 377         ;
 378
 379 distribution:
 380           CONSISTENT
 381           {
 382             $$= MEMCACHED_DISTRIBUTION_CONSISTENT;
 383           }
 384         | MODULA
 385           {
 386             $$= MEMCACHED_DISTRIBUTION_MODULA;
 387           }
 388         | RANDOM
 389           {
 390             $$= MEMCACHED_DISTRIBUTION_RANDOM;
 391           }
 392         ;