lib/wsrep-lib
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Refactored high priority service out of client service.

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This commit is contained in:
Teemu Ollakka
2018-07-02 18:22:24 +03:00
parent 658a84a7d4
commit 635eaf4c29
28 changed files with 556 additions and 261 deletions
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31
include/wsrep/client_service.hpp
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@@ -6,16 +6,12 @@
*
* This file will define a `callback` abstract interface for a
* DBMS client session service. The interface will define methods
* which will be called by the wsrep-lib under certain circumstances,
* for example when a transaction rollback is required by internal
* wsrep-lib operation or applier client needs to apply a write set.
* which will be called by the wsrep-lib.
*/
#ifndef WSREP_CLIENT_SERVICE_HPP
#define WSREP_CLIENT_SERVICE_HPP
#include "transaction_termination_service.hpp"
#include "buffer.hpp"
#include "provider.hpp"
#include "mutex.hpp"
@@ -24,7 +20,7 @@
namespace wsrep
{
class transaction;
class client_service : public wsrep::transaction_termination_service
class client_service
{
public:
client_service() { }
@@ -80,28 +76,15 @@ namespace wsrep
virtual int prepare_fragment_for_replication(wsrep::mutable_buffer&) = 0;
virtual void remove_fragments() = 0;
virtual int commit(const wsrep::ws_handle&, const wsrep::ws_meta&) = 0;
//
// Applying interface
// Rollback
//
/**
* Apply a write set.
*
* A write set applying happens always
* as a part of the transaction. The caller must start a
* new transaction before applying a write set and must
* either commit to make changes persistent or roll back.
* Roll back all transactions which are currently active
* in the client session.
*/
virtual int apply_write_set(const wsrep::const_buffer&) = 0;
/**
* Apply a TOI operation.
*
* TOI operation is a standalone operation and should not
* be executed as a part of a transaction.
*/
virtual int apply_toi(const wsrep::const_buffer&) = 0;
virtual int rollback() = 0;
//
// Interface to global server state