RequestTracker.hpp
上传用户:romrleung
上传日期:2022-05-23
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文件大小:2k
- /* Copyright (C) 2003 MySQL AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef __REQUEST_TRACKER_HPP
- #define __REQUEST_TRACKER_HPP
- #include "SafeCounter.hpp"
- class RequestTracker {
- public:
- RequestTracker(){ init(); }
- void init() { m_confs.clear(); m_nRefs = 0; }
- template<typename SignalClass>
- void init(SafeCounterManager& mgr,
- NodeReceiverGroup rg, Uint16 GSN, Uint32 senderData)
- {
- init();
- SafeCounter tmp(mgr, m_sc);
- tmp.init<SignalClass>(rg, GSN, senderData);
- }
- bool ignoreRef(SafeCounterManager& mgr, Uint32 nodeId)
- { return m_sc.clearWaitingFor(mgr, nodeId); }
- bool reportRef(SafeCounterManager& mgr, Uint32 nodeId)
- { m_nRefs++; return m_sc.clearWaitingFor(mgr, nodeId); }
- bool reportConf(SafeCounterManager& mgr, Uint32 nodeId)
- { m_confs.set(nodeId); return m_sc.clearWaitingFor(mgr, nodeId); }
- bool hasRef() { return m_nRefs != 0; }
- bool hasConf() { return !m_confs.isclear(); }
- bool done() { return m_sc.done(); }
- private:
- SafeCounterHandle m_sc;
- NodeBitmask m_confs;
- Uint8 m_nRefs;
- };
- #endif // __REQUEST_TRACKER_HPP