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+/* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
+
+#ifndef MYSQL_SERVICE_TRANSACTION_WRITE_SET_INCLUDED
+
+/**
+ @file include/mysql/service_rpl_transaction_write_set.h
+ This service provides a function for plugins to get the write set of a given
+ transaction.
+
+ SYNOPSIS
+ get_transaction_write_set()
+ This service is used to fetch the write_set extracted for the currently
+ executing transaction by passing the thread_id as an input parameter for
+ the method.
+
+ @param [in] - thread_id - It is the thread identifier of the currently
+ executing thread.
+
+ In the current implementation it is being called during RUN_HOOK macro,
+ on which we know that thread is on plugin context.
+
+ Cleanup :
+ The service caller must take of the memory allocated during the service
+ call to prevent memory leaks.
+*/
+
+#ifndef MYSQL_ABI_CHECK
+#include <stdlib.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ This structure is used to keep the list of the hash values of the records
+ changed in the transaction.
+*/
+struct st_trans_write_set
+{
+ unsigned int m_flags; // reserved
+ unsigned long write_set_size; // Size of the PKE set of the transaction.
+ unsigned long long* write_set; // A pointer to the PKE set.
+};
+typedef struct st_trans_write_set Transaction_write_set;
+
+extern struct transaction_write_set_service_st {
+ Transaction_write_set* (*get_transaction_write_set)(unsigned long m_thread_id);
+} *transaction_write_set_service;
+
+#ifdef MYSQL_DYNAMIC_PLUGIN
+
+#define get_transaction_write_set(m_thread_id) \
+ (transaction_write_set_service->get_transaction_write_set((m_thread_id)))
+
+#else
+
+Transaction_write_set* get_transaction_write_set(unsigned long m_thread_id);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#define MYSQL_SERVICE_TRANSACTION_WRITE_SET_INCLUDED
+#endif