util.h

/*
 * Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution. 
 *
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met: 
 *
 * - Redistributions of source code must retain the above copyright notice, 
 *   this list of conditions and the following disclaimer. 
 *
 * - Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation 
 *   and/or other materials provided with the distribution. 
 *
 * - Neither the name of the <ORGANIZATION> nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software without 
 *   specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
 * OF SUCH DAMAGE. 
 *
 */

#pragma once

void show_error(char *msg, int code, T_CCI_ERROR *error);

class CConnectionProperties;

namespace Util {

int CharsetToCodepage(const char* charset);

HRESULT GetConnectionProperties(IDBProperties* pDBProps, CConnectionProperties& props);

// 북마크 배열에서 주어진 값을 가지는 곳의 인덱스를 구한다.
//DBROWCOUNT FindBookmark(const CAtlArray<DBROWCOUNT> &rgBookmarks, DBROWCOUNT iRowset);

// 테이블이 존재하면 S_OK, 존재하지 않으면 S_FALSE
HRESULT DoesTableExist(int hConn, char *szTableName);

// 테이블을 열고, req handle과 result count를 반환한다.
HRESULT OpenTable(int hConn, UINT uCodepage, const CComBSTR &strTableName, int *phReq, int *pcResult, char flag, bool bAsynch=false, int maxrows=0);

HRESULT GetUniqueTableName(CComBSTR& strTableName);
HRESULT GetTableNames(int hConn, CAtlArray<CStringA> &rgTableNames);
HRESULT GetIndexNamesInTable(int hConn, char* table_name, CAtlArray<CStringA> &rgIndexNames, CAtlArray<int> &rgIndexTypes);

// SQL 문에서 테이블 이름을 뽑아낸다.
void ExtractTableName(const CComBSTR &strCommandText, CComBSTR &strTableName);

//요청된 인터페이스가 CCI_PREPARE_UPDATABLE를 필요로 하는지 체크한다.
bool RequestedRIIDNeedsUpdatability(REFIID riid);
//bool RequestedRIIDNeedsOID(REFIID riid);
//bool CheckOIDFromProperties(ULONG cSets, const DBPROPSET rgSets[]);
bool CheckUpdatabilityFromProperties(ULONG cSets, const DBPROPSET rgSets[]);

// IColumnsInfo를 위한 정보를 제공하는 클래스
class CColumnsInfo
{
public:
	int m_cColumns;
	ATLCOLUMNINFO *m_pInfo;
	CAtlArray<CStringA>* m_defaultVal;

	CColumnsInfo() : m_cColumns(0), m_pInfo(0), m_defaultVal(0){}
	~CColumnsInfo() { FreeColumnInfo(); }

	// m_cColumns, m_pInfo 값을 채운다.
	// 주의) 이미 값이 있는지 여부는 검사하지 않는다.
	HRESULT GetColumnInfo(UINT uCodepage, T_CCI_COL_INFO* info, T_CCI_CUBRID_STMT cmd_type, int cCol, bool bBookmarks=false, ULONG ulMaxLen=0);
	HRESULT GetColumnInfo(int hReq, UINT uCodepage, bool bBookmarks=false, ULONG ulMaxLen=0);
	HRESULT GetColumnInfoCommon(UINT uCodepage, T_CCI_COL_INFO* info, T_CCI_CUBRID_STMT cmd_type, bool bBookmarks=false, ULONG ulMaxLen=0);

	// m_pInfo의 메모리를 해제하고, 모든 변수를 초기화한다.
	void FreeColumnInfo();
};

// Commit이나 Abort 됐을 때 불린다.
class ITxnCallback
{
public:
	virtual void TxnCallback(const ITxnCallback *pOwner) = 0;
};

}