Source code of Windows XP (NT5)
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/*--------------------------------------------------------------------------
dbcon.h Normandy 2.0 connection management dll (supporting SQL server hot switch).
Copyright (C) 1996 Microsoft Corporation All rights reserved.
Authors: Fei Su (feisu)
History: 07/16/96 feisu Created --------------------------------------------------------------------------*/
#ifndef __DBCON_H__
#define __DBCON_H__
#ifdef _DBSQL_IMPLEMENTING
#define DbSqlDLL __declspec(dllexport)
#else
#define DbSqlDLL __declspec(dllimport)
#endif
#define DBNTWIN32
#pragma warning (disable:4121)
#include <sqlfront.h>
#pragma warning (default:4121)
#include <sqldb.h>
#define MAXSERVERNAME 30 // in sqlfront.h, length of server name ( excluding NULL termintor )
#define MAXNAME 31 // in sqlfront.h, length of login, db, password
// total DB types currently supported
#define AC_MAX_NUMBER_DATABASE_TYPES 1024
// database types are from 0 to AC_MAX_NUMBER_DATABASE_TYPES - 1. The assignment
// of database types must be centralized.
//
// Proposal:
// 0 --> 9 Reserved for future use
// 10 --> 19 Address Book
// 20 --> 29 Security
// 100--> 200 IDS
//
// Add new services here.
#define DT_ABOOK_BASE 10
#define DT_SECURITY_BASE 20
#define DT_IDS_BASE 100
// if dbopen failed for a source, mark it as bad for 2 minutes for the server to recover
// all times are in units of seconds
#define DEFAULT_RECOVER_TIME 120
#define DEFAULT_MAX_CNX_PER_ENTRY 10
#define DEFAULT_QUERY_TIME_OUT 120
#define DEFAULT_LOGIN_TIME_OUT 20
// the following 2 numbers are only used by CPool
// they are the max number of CConnection and CLoginEntry internal structures
#define MAXCONN 256
#define MAXLOGIN 256
// exported functions
extern "C" {
BOOL DbSqlDLL DbInitialize();BOOL DbSqlDLL DbTerminate();
BOOL DbSqlDLL DbAddSource(LONG lType, LPCTSTR lpszServerName, LPCTSTR lpszLoginName, LPCTSTR lpszPassWord, LPCTSTR lpszDBName, LONG lMaxCnx = DEFAULT_MAX_CNX_PER_ENTRY, LONG lQueryTimeOutInSeconds = DEFAULT_QUERY_TIME_OUT, DWORD dwRecoverTimeInSeconds = DEFAULT_RECOVER_TIME);
BOOL DbSqlDLL DbDropSource(LONG lType, LPCTSTR lpszServerName, LPCTSTR lpszLoginName);
HANDLE DbSqlDLL DbGetConnection(LONG lType, DBPROCESS **dbproc, DWORD dwWaitTimeInSeconds = DEFAULT_LOGIN_TIME_OUT);
BOOL DbSqlDLL DbReleaseConnection(HANDLE hCDBConnection);
BOOL DbSqlDLL DbAssociate(LONG lType, LONG lBackup);
BOOL DbSqlDLL DbGetError(PDBPROCESS pDbproc, INT *dberr);
BOOL DbSqlDLL DbGetConnectionFlag(HANDLE hCDBConnection, DWORD* pdwFlag);BOOL DbSqlDLL DbSetConnectionFlag(HANDLE hCDBConnection, DWORD dwFlag);
}
#endif // #ifndef __DBCON_H__
/* EOF */
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