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ebfc4e6ad0
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commit 86587affafe77ef555f7c3839839de44f0f203f3
Author: Tian Xia <tianx@fb.com>
Date: Tue Oct 4 10:01:52 2016 -0700
Allow filtering of show commands through admission control
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/*
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Copyright (c) 2014, SkySQL Ab
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#pragma once
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/* C++ system header files */
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#include <string>
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#include <unordered_map>
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/* RocksDB header files */
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#include "rocksdb/table.h"
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#include "rocksdb/utilities/options_util.h"
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/* MyRocks header files */
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#include "./rdb_comparator.h"
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namespace myrocks {
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/*
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Per-column family options configs.
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Per-column family option can be set
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- Globally (the same value applies to all column families)
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- Per column family: there is a {cf_name -> value} map,
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and also there is a default value which applies to column
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families not found in the map.
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*/
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class Rdb_cf_options
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{
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public:
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void get(const std::string &cf_name, rocksdb::ColumnFamilyOptions *opts);
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bool init(
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size_t default_write_buffer_size,
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const rocksdb::BlockBasedTableOptions& table_options,
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std::shared_ptr<rocksdb::TablePropertiesCollectorFactory> prop_coll_factory,
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const char * default_cf_options,
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const char * override_cf_options);
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const rocksdb::ColumnFamilyOptions& get_defaults() const {
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return m_default_cf_opts;
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}
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static const rocksdb::Comparator* get_cf_comparator(
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const std::string& cf_name);
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void get_cf_options(
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const std::string &cf_name,
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rocksdb::ColumnFamilyOptions *opts) __attribute__((__nonnull__));
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private:
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bool set_default(const std::string &default_config);
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bool set_override(const std::string &overide_config);
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/* Helper string manipulation functions */
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static void skip_spaces(const std::string& input, size_t* pos);
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static bool find_column_family(const std::string& input, size_t* pos,
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std::string* key);
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static bool find_options(const std::string& input, size_t* pos,
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std::string* options);
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static bool find_cf_options_pair(const std::string& input, size_t* pos,
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std::string* cf, std::string* opt_str);
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private:
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static Rdb_pk_comparator s_pk_comparator;
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static Rdb_rev_comparator s_rev_pk_comparator;
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typedef std::unordered_map<std::string, std::string> Name_to_config_t;
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/* CF name -> value map */
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Name_to_config_t m_name_map;
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/* The default value (if there is only one value, it is stored here) */
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std::string m_default_config;
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rocksdb::ColumnFamilyOptions m_default_cf_opts;
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};
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} // namespace myrocks
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