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127 lines
2.4 KiB
C++
127 lines
2.4 KiB
C++
/*
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* PROGRAM: Firebird exceptions classes
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* MODULE: StatusHolder.h
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* DESCRIPTION: Firebird's exception classes
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*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Vlad Khorsun
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2007 Vlad Khorsun <hvlad at users.sourceforge.net>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*
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*
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*/
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#ifndef FB_STATUS_HOLDER
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#define FB_STATUS_HOLDER
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#include "ProviderInterface.h"
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#include "../common/utils_proto.h"
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#include "../common/classes/ImplementHelper.h"
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namespace Firebird {
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class BaseStatus : public IStatus
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{
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public:
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virtual void FB_CARG set(const ISC_STATUS* value)
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{
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set(fb_utils::statusLength(value), value);
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}
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virtual void FB_CARG set(unsigned int length, const ISC_STATUS* value)
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{
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fb_utils::copyStatus(vector, FB_NELEM(vector), value, length);
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}
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virtual void FB_CARG init()
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{
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fb_utils::init_status(vector);
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}
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virtual const ISC_STATUS* FB_CARG get() const
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{
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return vector;
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}
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virtual int FB_CARG isSuccess() const
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{
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return vector[1] == 0;
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}
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public:
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BaseStatus()
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{
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init();
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}
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private:
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ISC_STATUS vector[40]; // FixMe - may be a kind of dynamic storage will be better?
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};
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class LocalStatus : public StackIface<BaseStatus>
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{
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};
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class StatusHolder
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{
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public:
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explicit StatusHolder(const ISC_STATUS* status = NULL)
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{
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fb_utils::init_status(m_status_vector);
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m_raised = false;
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if (status)
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save(status);
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}
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~StatusHolder()
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{ clear(); }
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ISC_STATUS save(const ISC_STATUS* status);
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void clear();
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void raise();
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ISC_STATUS getError()
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{
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return value()[1];
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}
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const ISC_STATUS* value()
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{
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if (m_raised) {
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clear();
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}
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return m_status_vector;
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}
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bool isSuccess()
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{
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return getError() == 0;
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}
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private:
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ISC_STATUS_ARRAY m_status_vector;
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bool m_raised;
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};
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} // namespace Firebird
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#endif // FB_STATUS_HOLDER
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