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2116.1.20
by David Shrewsbury
Refactor design pattern |
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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) 2011 David Shrewsbury
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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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2234
by Brian Aker
Mass removal of ifdef/endif in favor of pragma once. |
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#pragma once
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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2116.1.31
by David Shrewsbury
Major refactor of common functionality into new classes. |
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#include <drizzled/internal/my_pthread.h> |
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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namespace slave |
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{
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/**
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* Interface for threads interacting with the replication queue.
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*
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* This class uses the Template Method design pattern to define the set of
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* steps for a thread operating on the replication queue. An implementing
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* class need only implement the init(), process(), and/or shutdown() methods.
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* The implementing class need only pass run() method to thread initialization.
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*/
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class QueueThread |
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{
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public: |
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2116.1.21
by David Shrewsbury
Fix for calling unimplemented virtual method |
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virtual ~QueueThread() |
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{}
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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void run(void); |
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/**
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* Do any initialization work.
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*
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* @retval true Success
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* @retval false Failure
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*/
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virtual bool init() |
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{
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return true; |
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}
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/**
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* Work to do at thread shutdown time.
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*/
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2116.1.21
by David Shrewsbury
Fix for calling unimplemented virtual method |
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virtual void shutdown() |
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{}
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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/**
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* Method that actually does the work around the queue.
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*
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2116.1.21
by David Shrewsbury
Fix for calling unimplemented virtual method |
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* Returning 'false' from this method currently causes the thread to
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* shutdown.
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*
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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* @retval true Success
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* @retval false Failure
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*/
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virtual bool process()= 0; |
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virtual uint32_t getSleepInterval()= 0; |
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};
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2116.1.21
by David Shrewsbury
Fix for calling unimplemented virtual method |
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} /* namespace slave */ |
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2116.1.20
by David Shrewsbury
Refactor design pattern |
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