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1143.3.4
by Jay Pipes
Adds INFORMATION_SCHEMA views for the transaction log: |
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2008-2009 Sun Microsystems
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*
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* Authors:
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*
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* Jay Pipes <joinfu@sun.com>
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*
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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; either version 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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*
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* Defines a simple structure representing a transaction log entry.
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*/
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#ifndef PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_ENTRY_H
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#define PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_ENTRY_H
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#include <drizzled/replication_services.h> |
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#include <string> |
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/**
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* Represents a single entry in the transaction log.
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*/
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class TransactionLogEntry |
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{
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public: |
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TransactionLogEntry(drizzled::ReplicationServices::MessageType in_type, |
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off_t in_offset, |
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size_t length); |
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~TransactionLogEntry(); |
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/**
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* Returns a string representation of the entry type
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*/
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const char *getTypeAsString() const; |
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/**
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* Returns the entry's offset in the log
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*/
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off_t getOffset() const; |
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/**
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* Returns the length of the entry in bytes
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*/
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size_t getLengthInBytes() const; |
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private: |
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enum drizzled::ReplicationServices::MessageType type; ///< The type of the entry |
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off_t offset; ///< Offset into the log file |
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size_t length; ///< Length in bytes of the entry |
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};
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class TransactionLogTransactionEntry |
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{
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public: |
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TransactionLogTransactionEntry(off_t in_offset, |
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const drizzled::message::Transaction &transaction, |
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uint32_t in_checksum); |
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~TransactionLogTransactionEntry(); |
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/**
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* Returns the entry's offset in the log
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*/
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off_t getOffset() const; |
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/**
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* Returns the transaction's server ID
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*/
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uint32_t getServerId() const; |
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/**
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* Returns the transaction's start timestamp
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*/
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uint64_t getStartTimestamp() const; |
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/**
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* Returns the transaction's end timestamp
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*/
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uint64_t getEndTimestamp() const; |
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/**
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* Returns the transaction's ID
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*/
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uint64_t getTransactionId() const; |
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/**
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* Returns the number of statements in the transaction
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*/
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uint64_t getNumStatements() const; |
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/**
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* Returns the checksum for the transaction message bytes
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*/
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uint32_t getChecksum() const; |
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private: |
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off_t offset; ///< Offset into the log file |
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uint32_t server_id; ///< The server ID that this transaction came from |
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uint64_t transaction_id; ///< The transaction's ID |
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uint64_t start_timestamp; ///< The transaction's start timestamp |
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uint64_t end_timestamp; ///< The transaction's end timestamp |
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uint32_t num_statements; ///< Number of Statements in the transaction |
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uint32_t checksum; ///< Checksum of the transaction message bytes |
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};
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#endif /* PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_ENTRY_H */ |