/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- *
- * Libmemcached library
*
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *
- * * The names of its contributors may not be used to endorse or
- * promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Libmemcached Scanner and Parser
*
+ * Copyright (C) 2011 DataDifferental, http://datadifferential.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+%error-verbose
+%debug
+%defines
+%expect 0
+%output "libmemcached/options/parser.cc"
+%defines "libmemcached/options/parser.h"
+%lex-param { yyscan_t *scanner }
+%name-prefix="config_"
+%parse-param { Context *context }
+%parse-param { yyscan_t *scanner }
+%pure-parser
+%require "2.2"
+%start begin
+%verbose
+
%{
+#include <config.h>
+
#include <stdint.h>
-#include <iostream>
-#include <libmemcached/options/type.h>
-#include <libmemcached/options/string.h>
+#include <libmemcached/common.h>
+#include <libmemcached/options.hpp>
+
+#include <libmemcached/options/context.h>
#include <libmemcached/options/symbol.h>
+#include <libmemcached/options/scanner.h>
#pragma GCC diagnostic ignored "-Wold-style-cast"
-#include <libmemcached/options/scanner.h>
-inline int libmemcached_error(YYLTYPE *locp, type_st *parser, yyscan_t *scanner, const char *str)
+int conf_lex(YYSTYPE* lvalp, void* scanner);
+
+#define parser_abort(A, B) do { (A)->abort((B)); YYABORT; } while (0)
+
+inline void config_error(Context *context, yyscan_t *scanner, const char *error)
{
- std::cerr << str << std::endl;
- return 0;
+ if (not context->end())
+ context->abort(error);
}
-
%}
-%error-verbose
-%debug
-%defines
-%expect 0
-%output "libmemcached/options/parser.cc"
-%defines "libmemcached/options/parser.h"
-%lex-param { yyscan_t *scanner }
-%name-prefix="libmemcached_"
-%parse-param { type_st *parser }
-%parse-param { yyscan_t *scanner }
-%locations
-%pure-parser
-%require "2.2"
-%start statement
-%verbose
-
-%token EQ
+%token COMMENT
+%token END
+%token ERROR
+%token RESET
+%token PARSER_DEBUG
+%token INCLUDE
+%token CONFIGURE_FILE
+%token EMPTY_LINE
%token SERVER
%token SERVERS
-%token TCPNODELAY
+%token SERVERS_OPTION
+%token UNKNOWN_OPTION
%token UNKNOWN
+
+/* All behavior options */
+%token BINARY_PROTOCOL
+%token BUFFER_REQUESTS
+%token CONNECT_TIMEOUT
+%token DISTRIBUTION
+%token HASH
+%token HASH_WITH_NAMESPACE
+%token IO_BYTES_WATERMARK
+%token IO_KEY_PREFETCH
+%token IO_MSG_WATERMARK
+%token KETAMA_HASH
+%token KETAMA_WEIGHTED
+%token NOREPLY
+%token NUMBER_OF_REPLICAS
+%token POLL_TIMEOUT
+%token RANDOMIZE_REPLICA_READ
+%token RCV_TIMEOUT
+%token REMOVE_FAILED_SERVERS
+%token RETRY_TIMEOUT
+%token SND_TIMEOUT
+%token SOCKET_RECV_SIZE
+%token SOCKET_SEND_SIZE
+%token SORT_HOSTS
+%token SUPPORT_CAS
+%token USER_DATA
+%token USE_UDP
%token VERIFY_KEY
-%token COMMA
+%token _TCP_KEEPALIVE
+%token _TCP_KEEPIDLE
+%token _TCP_NODELAY
+
+/* Callbacks */
+%token NAMESPACE
+
+/* Pool */
+%token POOL_MIN
+%token POOL_MAX
+
+/* Hash types */
+%token MD5
+%token CRC
+%token FNV1_64
+%token FNV1A_64
+%token FNV1_32
+%token FNV1A_32
+%token HSIEH
+%token MURMUR
+%token JENKINS
+
+/* Distributions */
+%token CONSISTENT
+%token MODULA
+%token RANDOM
+
+/* Boolean values */
+%token <boolean> TRUE
+%token <boolean> FALSE
+
+%nonassoc ','
+%nonassoc '='
-%token <number> NUMBER
%token <number> FLOAT
-%token <string> IDENTIFIER
-%token <string> SERVER_WITH_PORT
+%token <number> NUMBER
+%token <number> PORT
+%token <number> WEIGHT_START
+%token <server> IPADDRESS
+%token <server> HOSTNAME
+%token <string> STRING
+%token <string> QUOTED_STRING
+%token <string> FILE_PATH
-%type <server> server
+%type <behavior> behavior_boolean
+%type <behavior> behavior_number
+%type <distribution> distribution
+%type <hash> hash
+%type <number> optional_port
+%type <number> optional_weight
+%type <string> string
%%
+begin:
+ statement
+ | begin ' ' statement
+ ;
+
statement:
- expression
+ expression
+ { }
+ | COMMENT
{ }
- | statement expression
+ | EMPTY_LINE
{ }
+ | END
+ {
+ context->set_end();
+ YYACCEPT;
+ }
+ | ERROR
+ {
+ context->rc= MEMCACHED_PARSE_USER_ERROR;
+ parser_abort(context, NULL);
+ }
+ | RESET
+ {
+ memcached_reset(context->memc);
+ }
+ | PARSER_DEBUG
+ {
+ yydebug= 1;
+ }
+ | INCLUDE ' ' string
+ {
+ if ((context->rc= memcached_parse_configure_file(*context->memc, $3.c_str, $3.size)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);
+ }
+ }
;
expression:
- SERVER EQ server
- {
- (void) memcached_server_add(parser->memc, $3.c_str, $3.port);
+ SERVER HOSTNAME optional_port optional_weight
+ {
+ if (memcached_failed(context->rc= memcached_server_add_with_weight(context->memc, $2.c_str, $3, $4)))
+ {
+ parser_abort(context, NULL);
+ }
+ context->unset_server();
+ }
+ | SERVER IPADDRESS optional_port optional_weight
+ {
+ if (memcached_failed(context->rc= memcached_server_add_with_weight(context->memc, $2.c_str, $3, $4)))
+ {
+ parser_abort(context, NULL);
+ }
+ context->unset_server();
+ }
+ | CONFIGURE_FILE string
+ {
+ memcached_set_configuration_file(context->memc, $2.c_str, $2.size);
+ }
+ | POOL_MIN NUMBER
+ {
+ context->memc->configure.initial_pool_size= $2;
+ }
+ | POOL_MAX NUMBER
+ {
+ context->memc->configure.max_pool_size= $2;
+ }
+ | behaviors
+ ;
+
+behaviors:
+ NAMESPACE string
+ {
+ if ((context->rc= memcached_set_namespace(context->memc, $2.c_str, $2.size)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ }
+ | DISTRIBUTION distribution
+ {
+ if ((context->rc= memcached_behavior_set(context->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $2)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ }
+ | DISTRIBUTION distribution ',' hash
+ {
+ if ((context->rc= memcached_behavior_set(context->memc, MEMCACHED_BEHAVIOR_DISTRIBUTION, $2)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ if ((context->rc= memcached_behavior_set_distribution_hash(context->memc, $4)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ }
+ | HASH hash
+ {
+ if ((context->rc= memcached_behavior_set(context->memc, MEMCACHED_BEHAVIOR_HASH, $2)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ }
+ | behavior_number NUMBER
+ {
+ if ((context->rc= memcached_behavior_set(context->memc, $1, $2)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
+ }
+ | behavior_boolean
+ {
+ if ((context->rc= memcached_behavior_set(context->memc, $1, true)) != MEMCACHED_SUCCESS)
+ {
+ parser_abort(context, NULL);;
+ }
}
- | SERVERS EQ server_list
+ | USER_DATA
+ {
+ }
+ ;
+
+behavior_number:
+ REMOVE_FAILED_SERVERS
+ {
+ $$= MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS;
+ }
+ | CONNECT_TIMEOUT
+ {
+ $$= MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT;
+ }
+ | IO_MSG_WATERMARK
+ {
+ $$= MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK;
+ }
+ | IO_BYTES_WATERMARK
+ {
+ $$= MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK;
+ }
+ | IO_KEY_PREFETCH
+ {
+ $$= MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH;
+ }
+ | NUMBER_OF_REPLICAS
+ {
+ $$= MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS;
+ }
+ | POLL_TIMEOUT
+ {
+ $$= MEMCACHED_BEHAVIOR_POLL_TIMEOUT;
+ }
+ | RCV_TIMEOUT
+ {
+ $$= MEMCACHED_BEHAVIOR_RCV_TIMEOUT;
+ }
+ | RETRY_TIMEOUT
+ {
+ $$= MEMCACHED_BEHAVIOR_RETRY_TIMEOUT;
+ }
+ | SND_TIMEOUT
+ {
+ $$= MEMCACHED_BEHAVIOR_SND_TIMEOUT;
+ }
+ | SOCKET_RECV_SIZE
+ {
+ $$= MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE;
+ }
+ | SOCKET_SEND_SIZE
+ {
+ $$= MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE;
+ }
+ ;
+
+behavior_boolean:
+ BINARY_PROTOCOL
+ {
+ $$= MEMCACHED_BEHAVIOR_BINARY_PROTOCOL;
+ }
+ | BUFFER_REQUESTS
+ {
+ $$= MEMCACHED_BEHAVIOR_BUFFER_REQUESTS;
+ }
+ | HASH_WITH_NAMESPACE
+ {
+ $$= MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY;
+ }
+ | NOREPLY
+ {
+ $$= MEMCACHED_BEHAVIOR_NOREPLY;
+ }
+ | RANDOMIZE_REPLICA_READ
+ {
+ $$= MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ;
+ }
+ | SORT_HOSTS
+ {
+ $$= MEMCACHED_BEHAVIOR_SORT_HOSTS;
+ }
+ | SUPPORT_CAS
+ {
+ $$= MEMCACHED_BEHAVIOR_SUPPORT_CAS;
+ }
+ | _TCP_NODELAY
+ {
+ $$= MEMCACHED_BEHAVIOR_TCP_NODELAY;
+ }
+ | _TCP_KEEPALIVE
+ {
+ $$= MEMCACHED_BEHAVIOR_TCP_KEEPALIVE;
+ }
+ | _TCP_KEEPIDLE
+ {
+ $$= MEMCACHED_BEHAVIOR_TCP_KEEPIDLE;
+ }
+ | USE_UDP
+ {
+ $$= MEMCACHED_BEHAVIOR_USE_UDP;
+ }
+ | VERIFY_KEY
+ {
+ $$= MEMCACHED_BEHAVIOR_VERIFY_KEY;
+ }
+
+
+optional_port:
+ { $$= MEMCACHED_DEFAULT_PORT;}
+ | PORT
+ { };
+ ;
+
+optional_weight:
+ { $$= 1; }
+ | WEIGHT_START
{ }
- | TCPNODELAY
+ ;
+
+hash:
+ MD5
+ {
+ $$= MEMCACHED_HASH_MD5;
+ }
+ | CRC
+ {
+ $$= MEMCACHED_HASH_CRC;
+ }
+ | FNV1_64
+ {
+ $$= MEMCACHED_HASH_FNV1_64;
+ }
+ | FNV1A_64
+ {
+ $$= MEMCACHED_HASH_FNV1A_64;
+ }
+ | FNV1_32
+ {
+ $$= MEMCACHED_HASH_FNV1_32;
+ }
+ | FNV1A_32
+ {
+ $$= MEMCACHED_HASH_FNV1A_32;
+ }
+ | HSIEH
+ {
+ $$= MEMCACHED_HASH_HSIEH;
+ }
+ | MURMUR
{
- memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, true);
+ $$= MEMCACHED_HASH_MURMUR;
}
- | VERIFY_KEY
+ | JENKINS
{
- memcached_behavior_set(parser->memc, MEMCACHED_BEHAVIOR_VERIFY_KEY, true);
+ $$= MEMCACHED_HASH_JENKINS;
}
;
-server_list:
- server
+string:
+ STRING
{
- (void) memcached_server_add(parser->memc, $1.c_str, $1.port);
+ $$= $1;
}
- | server_list COMMA server
+ | QUOTED_STRING
{
- (void) memcached_server_add(parser->memc, $3.c_str, $3.port);
+ $$.c_str= $1.c_str +1; // +1 to move use passed the initial quote
+ $$.size= $1.size -2; // -2 removes the begin and end quote
}
;
-server:
- SERVER_WITH_PORT NUMBER
+distribution:
+ CONSISTENT
+ {
+ $$= MEMCACHED_DISTRIBUTION_CONSISTENT;
+ }
+ | MODULA
{
- $$.c_str= $1.c_str;
- $$.length= $1.length;
- $$.port= $2;
+ $$= MEMCACHED_DISTRIBUTION_MODULA;
}
- | IDENTIFIER
+ | RANDOM
{
- $$.c_str= $1.c_str;
- $$.length= $1.length;
- $$.port= 80;
+ $$= MEMCACHED_DISTRIBUTION_RANDOM;
}
;
+
+%%
+
+void Context::start()
+{
+ config_parse(this, (void **)scanner);
+}
+
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