objectio.cpp

ncbi源码

/*
 * ===========================================================================
 * PRODUCTION $Log: objectio.cpp,v $
 * PRODUCTION Revision 1000.2  2004/06/01 19:40:45  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.11
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: objectio.cpp,v 1000.2 2004/06/01 19:40:45 gouriano Exp $
* ===========================================================================
*
*                            PUBLIC DOMAIN NOTICE
*               National Center for Biotechnology Information
*
*  This software/database is a "United States Government Work" under the
*  terms of the United States Copyright Act.  It was written as part of
*  the author's official duties as a United States Government employee and
*  thus cannot be copyrighted.  This software/database is freely available
*  to the public for use. The National Library of Medicine and the U.S.
*  Government have not placed any restriction on its use or reproduction.
*
*  Although all reasonable efforts have been taken to ensure the accuracy
*  and reliability of the software and data, the NLM and the U.S.
*  Government do not and cannot warrant the performance or results that
*  may be obtained by using this software or data. The NLM and the U.S.
*  Government disclaim all warranties, express or implied, including
*  warranties of performance, merchantability or fitness for any particular
*  purpose.
*
*  Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
* Author: Eugene Vasilchenko
*
* File Description:
*   !!! PUT YOUR DESCRIPTION HERE !!!
*
* ---------------------------------------------------------------------------
* $Log: objectio.cpp,v $
* Revision 1000.2  2004/06/01 19:40:45  gouriano
* PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.11
*
* Revision 1.11  2004/05/17 21:03:03  gorelenk
* Added include of PCH ncbi_pch.hpp
*
* Revision 1.10  2004/03/30 20:28:15  gouriano
* Corrected stream iterators to handle implicit containers
*
* Revision 1.9  2004/02/02 15:46:30  gouriano
* corrected CIstreamContainerIterator constructor to handle empty containers
*
* Revision 1.8  2003/10/24 17:50:37  vasilche
* CIStreamContainerIterator::operator++() moved to *.cpp file.
*
* Revision 1.7  2003/10/24 15:54:28  grichenk
* Removed or blocked exceptions in destructors
*
* Revision 1.6  2002/10/25 14:49:27  vasilche
* NCBI C Toolkit compatibility code extracted to libxcser library.
* Serial streams flags names were renamed to fXxx.
*
* Names of flags
*
* Revision 1.5  2001/08/31 20:05:45  ucko
* Fix ICC build.
*
* Revision 1.4  2001/05/17 15:07:07  lavr
* Typos corrected
*
* Revision 1.3  2001/01/22 23:23:58  vakatov
* Added   CIStreamClassMemberIterator
* Renamed CIStreamContainer --> CIStreamContainerIterator
*
* Revision 1.2  2000/10/20 19:29:36  vasilche
* Adapted for MSVC which doesn't like explicit operator templates.
*
* Revision 1.1  2000/10/20 15:51:40  vasilche
* Fixed data error processing.
* Added interface for constructing container objects directly into output stream.
* object.hpp, object.inl and object.cpp were split to
* objectinfo.*, objecttype.*, objectiter.* and objectio.*.
*
* ===========================================================================
*/

#include <ncbi_pch.hpp>
#include <corelib/ncbistd.hpp>
#include <serial/objectio.hpp>
#include <serial/objistr.hpp>
#include <serial/objostr.hpp>
#include <serial/objcopy.hpp>
#include <serial/objhook.hpp>

BEGIN_NCBI_SCOPE

// readers
void CObjectInfo::ReadContainer(CObjectIStream& in,
                                CReadContainerElementHook& hook)
{
    const CContainerTypeInfo* containerType = GetContainerTypeInfo();
    BEGIN_OBJECT_FRAME_OF2(in, eFrameArray, containerType);
    in.BeginContainer(containerType);

    TTypeInfo elementType = containerType->GetElementType();
    BEGIN_OBJECT_FRAME_OF2(in, eFrameArrayElement, elementType);

    while ( in.BeginContainerElement(elementType) ) {
        hook.ReadContainerElement(in, *this);
        in.EndContainerElement();
    }

    END_OBJECT_FRAME_OF(in);

    in.EndContainer();
    END_OBJECT_FRAME_OF(in);
}

inline
CIStreamFrame::CIStreamFrame(CObjectIStream& stream)
    : m_Stream(stream), m_Depth(stream.GetStackDepth())
{
}

CIStreamFrame::~CIStreamFrame(void)
{
    if ( GetStream().GetStackDepth() != m_Depth ) {
        try {
            GetStream().PopErrorFrame();
        }
        catch (...) {
            GetStream().SetFailFlags(CObjectIStream::fIllegalCall,
                "object stack frame error");
        }
    }
}

inline
bool CIStreamFrame::Good(void) const
{
    return GetStream().InGoodState();
}

inline
COStreamFrame::COStreamFrame(CObjectOStream& stream)
    : m_Stream(stream), m_Depth(stream.GetStackDepth())
{
}

inline
bool COStreamFrame::Good(void) const
{
    return GetStream().InGoodState();
}

COStreamFrame::~COStreamFrame(void)
{
    if ( GetStream().GetStackDepth() != m_Depth ) {
        try {
            GetStream().PopErrorFrame();
        }
        catch (...) {
            GetStream().SetFailFlags(CObjectOStream::fIllegalCall,
                "object stack frame error");
        }
    }
}

#ifdef NCBI_COMPILER_ICC
void* COStreamFrame::operator new(size_t size)
{
    return ::operator new(size);
}

void* COStreamFrame::operator new[](size_t size)
{
    return ::operator new[](size);
}

void* CIStreamFrame::operator new(size_t size)
{
    return ::operator new(size);
}

void* CIStreamFrame::operator new[](size_t size)
{
    return ::operator new[](size);
}
#endif


/////////////////////////////////////////////////////////////////////////////
// read/write classMember

inline
const CMemberInfo* CIStreamClassMemberIterator::GetMemberInfo(void) const
{
    return m_ClassType.GetClassTypeInfo()->GetMemberInfo(m_MemberIndex);
}

inline
void CIStreamClassMemberIterator::BeginClassMember(void)
{
    if ( m_ClassType.GetClassTypeInfo()->RandomOrder() ) {
        m_MemberIndex =
            GetStream().BeginClassMember(m_ClassType.GetClassTypeInfo());
    } else {
        m_MemberIndex =
            GetStream().BeginClassMember(m_ClassType.GetClassTypeInfo(),
                                         m_MemberIndex + 1);
    }

    if ( *this )
        GetStream().SetTopMemberId(GetMemberInfo()->GetId());
}

inline
void CIStreamClassMemberIterator::IllegalCall(const char* message) const
{
    GetStream().ThrowError(CObjectIStream::fIllegalCall, message);
}

inline
void CIStreamClassMemberIterator::BadState(void) const
{
    IllegalCall("bad CIStreamClassMemberIterator state");
}

CIStreamClassMemberIterator::CIStreamClassMemberIterator(CObjectIStream& in,
                                     const CObjectTypeInfo& classType)
    : CParent(in), m_ClassType(classType)
{
    const CClassTypeInfo* classTypeInfo = classType.GetClassTypeInfo();
    in.PushFrame(CObjectStackFrame::eFrameClass, classTypeInfo);
    in.BeginClass(classTypeInfo);
    
    in.PushFrame(CObjectStackFrame::eFrameClassMember);
    m_MemberIndex = kFirstMemberIndex - 1;
    BeginClassMember();
}

CIStreamClassMemberIterator::~CIStreamClassMemberIterator(void)
{
    if ( Good() ) {
        try {
            if ( *this )
                GetStream().EndClassMember();
            GetStream().PopFrame();
            GetStream().EndClass();
            GetStream().PopFrame();
        }
        catch (...) {
            GetStream().SetFailFlags(CObjectIStream::fIllegalCall,
                "class member iterator error");
        }
    }
}

inline
void CIStreamClassMemberIterator::CheckState(void)
{
    if ( m_MemberIndex == kInvalidMember )
        BadState();
}

void CIStreamClassMemberIterator::NextClassMember(void)
{
    CheckState();
    GetStream().EndClassMember();
    BeginClassMember();
}