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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2010 Brian Aker
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* Copyright (C) 2009 Sun Microsystems, Inc.
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* Copyright (C) 2009 Sun Microsystems
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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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#include <boost/functional/hash.hpp>
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#include "drizzled/visibility.h"
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namespace drizzled {
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namespace identifier {
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class DRIZZLED_API Table : public Schema
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class TableIdentifier : public SchemaIdentifier
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typedef message::Table::TableType Type;
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typedef std::vector <Table> vector;
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typedef const Table& const_reference;
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typedef Table& reference;
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std::vector<char> key_buffer;
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const char *vector() const
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return &key_buffer[0];
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std::vector<char> &vectorPtr()
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void set(size_t resize_arg, const std::string &a, const std::string &b);
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friend bool operator==(const Key &left, const Key &right)
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if (left.hash_value == right.hash_value and left.key_buffer.size() == right.key_buffer.size())
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if (memcmp(&left.key_buffer[0], &right.key_buffer[0], left.key_buffer.size()) == 0)
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friend bool operator<(const Key &left, const Key &right)
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return left.key_buffer < right.key_buffer;
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return key_buffer.size();
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size_t getHashValue() const
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typedef std::vector<char> Key;
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std::string key_path;
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std::string table_name;
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size_t hash_value;
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Table(const drizzled::Table &table);
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TableIdentifier(const Table &table);
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Table(const identifier::Schema &schema,
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const std::string &table_name_arg,
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Type tmp_arg= message::Table::STANDARD) :
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table_name(table_name_arg)
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Table( const std::string &db_arg,
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const std::string &table_name_arg,
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Type tmp_arg= message::Table::STANDARD) :
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table_name(table_name_arg)
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Table( const std::string &schema_name_arg,
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TableIdentifier( const SchemaIdentifier &schema,
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const std::string &table_name_arg,
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Type tmp_arg= message::Table::STANDARD) :
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SchemaIdentifier(schema),
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table_name(table_name_arg)
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TableIdentifier( const std::string &db_arg,
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const std::string &table_name_arg,
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Type tmp_arg= message::Table::STANDARD) :
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SchemaIdentifier(db_arg),
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table_name(table_name_arg)
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TableIdentifier( const std::string &schema_name_arg,
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const std::string &table_name_arg,
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const std::string &path_arg ) :
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Schema(schema_name_arg),
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SchemaIdentifier(schema_name_arg),
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type(message::Table::TEMPORARY),
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table_name(table_name_arg)
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virtual void getSQLPath(std::string &sql_path) const;
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const std::string &getSQLPath();
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virtual const std::string &getPath() const;
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const std::string &getKeyPath() const;
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const std::string &getPath() const;
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void setPath(const std::string &new_path)
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friend bool operator==(Table::const_reference left, Table::const_reference right)
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friend std::ostream& operator<<(std::ostream& output, const TableIdentifier &identifier)
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if (left.getHashValue() == right.getHashValue())
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if (left.getKey() == right.getKey())
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const char *type_str;
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output << "TableIdentifier:(";
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output << identifier.getSchemaName();
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output << identifier.getTableName();
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switch (identifier.type) {
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case message::Table::STANDARD:
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type_str= "standard";
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case message::Table::INTERNAL:
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type_str= "internal";
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case message::Table::TEMPORARY:
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type_str= "temporary";
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case message::Table::FUNCTION:
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type_str= "function";
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output << identifier.path;
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output << identifier.getHashValue();
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return output; // for multiple << operators.
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friend bool operator==(TableIdentifier &left, TableIdentifier &right)
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if (left.getKey() == right.getKey())
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static uint32_t filename_to_tablename(const char *from, char *to, uint32_t to_length);
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static size_t build_table_filename(std::string &path, const std::string &db, const std::string &table_name, bool is_tmp);
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static size_t build_table_filename(std::string &buff, const char *db, const char *table_name, bool is_tmp);
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static size_t build_tmptable_filename(std::string &buffer);
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static size_t build_tmptable_filename(std::vector<char> &buffer);
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bool isValid() const;
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Create a table cache key
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key Create key here (must be of size MAX_DBKEY_LENGTH)
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table_list Table definition
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The table cache_key is created from:
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if the table is a tmp table, we add the following to make each tmp table
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4 bytes for master thread id
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4 bytes pseudo thread id
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static uint32_t createKey(char *key, const char *db_arg, const char *table_name_arg)
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key_pos= strcpy(key_pos, db_arg) + strlen(db_arg);
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key_pos= strcpy(key_pos+1, table_name_arg) +
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strlen(table_name_arg);
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key_length= (uint32_t)(key_pos-key)+1;
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static uint32_t createKey(char *key, const TableIdentifier &identifier)
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key_pos= strcpy(key_pos, identifier.getSchemaName().c_str()) + identifier.getSchemaName().length();
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key_pos= strcpy(key_pos + 1, identifier.getTableName().c_str()) + identifier.getTableName().length();
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key_length= (uint32_t)(key_pos-key)+1;
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size_t getHashValue() const
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std::ostream& operator<<(std::ostream& output, Table::const_reference identifier);
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std::size_t hash_value(Table const& b);
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std::size_t hash_value(Table::Key const& b);
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} /* namespace identifier */
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std::size_t hash_value(TableIdentifier const& b);
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typedef std::vector <TableIdentifier> TableIdentifiers;
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} /* namespace drizzled */
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#endif /* DRIZZLED_IDENTIFIER_TABLE_H */