context.cpp

ncbi源码

}


int CDBLibContext::DBLIB_dberr_handler(DBPROCESS*    dblink,
                                       int           severity,
                                       int           dberr,
                                       int           /*oserr*/,
                                       const string& dberrstr,
                                       const string& /*oserrstr*/)
{
    CDBL_Connection* link = dblink ?
        reinterpret_cast<CDBL_Connection*> (dbgetuserdata(dblink)) : 0;
    CDBHandlerStack* hs   = link ?
        &link->m_MsgHandlers : &m_pDBLibContext->m_CntxHandlers;

    switch (dberr) {
    case SYBETIME:
    case SYBEFCON:
    case SYBECONN:
        {
            CDB_TimeoutEx to(dberr, "dblib", dberrstr);
            hs->PostMsg(&to);
        }
        return INT_TIMEOUT;
    default:
        break;
    }


    switch (severity) {
    case EXINFO:
    case EXUSER:
        {
            CDB_ClientEx info(eDB_Info, dberr, "dblib", dberrstr);
            hs->PostMsg(&info);
        }
        break;
    case EXNONFATAL:
    case EXCONVERSION:
    case EXSERVER:
    case EXPROGRAM:
        {
            CDB_ClientEx err(eDB_Error, dberr, "dblib", dberrstr);
            hs->PostMsg(&err);
        }
        break;
    case EXTIME:
        {
            CDB_TimeoutEx to(dberr, "dblib", dberrstr);
            hs->PostMsg(&to);
        }
        return INT_TIMEOUT;
    default:
        {
            CDB_ClientEx ftl(eDB_Fatal, dberr, "dblib", dberrstr);
            hs->PostMsg(&ftl);
        }
        break;
    }
    return INT_CANCEL;
}


void CDBLibContext::DBLIB_dbmsg_handler(DBPROCESS*    dblink,
                                        DBINT         msgno,
                                        int           /*msgstate*/,
                                        int           severity,
                                        const string& msgtxt,
                                        const string& srvname,
                                        const string& procname,
                                        int           line)
{
    if (msgno == 5701  ||  msgno == 5703)
        return;

    CDBL_Connection* link = dblink ?
        reinterpret_cast<CDBL_Connection*>(dbgetuserdata(dblink)) : 0;
    CDBHandlerStack* hs   = link ?
        &link->m_MsgHandlers : &m_pDBLibContext->m_CntxHandlers;

    if (msgno == 1205/*DEADLOCK*/) {
        CDB_DeadlockEx dl(srvname, msgtxt);
        hs->PostMsg(&dl);
    } else {
        EDB_Severity sev =
            severity <  10 ? eDB_Info :
            severity == 10 ? eDB_Warning :
            severity <  16 ? eDB_Error :
            severity >  16 ? eDB_Fatal :
            eDB_Unknown;
        if (!procname.empty()) {
            CDB_RPCEx rpc(sev, msgno, srvname, msgtxt, procname, line);
            hs->PostMsg(&rpc);
        } else {
            CDB_DSEx m(sev, msgno, srvname, msgtxt);
            hs->PostMsg(&m);
        }
    }
}


DBPROCESS* CDBLibContext::x_ConnectToServer(const string&   srv_name,
                                            const string&   user_name,
                                            const string&   passwd,
                                            TConnectionMode mode)
{
    if (!m_HostName.empty())
        DBSETLHOST(m_Login, (char*) m_HostName.c_str());
    if (m_PacketSize > 0)
        DBSETLPACKET(m_Login, m_PacketSize);
    if (DBSETLAPP (m_Login, (char*) m_AppName.c_str())
        != SUCCEED ||
        DBSETLUSER(m_Login, (char*) user_name.c_str())
        != SUCCEED ||
        DBSETLPWD (m_Login, (char*) passwd.c_str())
        != SUCCEED)
        return 0;

    if (mode & fBcpIn)
        BCP_SETL(m_Login, TRUE);

#ifndef MS_DBLIB_IN_USE
    if (mode & fPasswordEncrypted)
        DBSETLENCRYPT(m_Login, TRUE);
#endif

    return dbopen(m_Login, (char*) srv_name.c_str());
}



///////////////////////////////////////////////////////////////////////
// Driver manager related functions
//
#ifndef MS_DBLIB_IN_USE

I_DriverContext* DBLIB_CreateContext(map<string,string>* attr = 0)
{
    DBINT version= DBVERSION_46;

    if(attr) {
        string vers= (*attr)["version"];
        if(vers.find("46") != string::npos)
            version= DBVERSION_46;
        else if(vers.find("100") != string::npos)
            version= DBVERSION_100;

    }

    CDBLibContext* cntx= new CDBLibContext(version);
    if(cntx && attr) {
      string page_size= (*attr)["packet"];
      if(!page_size.empty()) {
    int s= atoi(page_size.c_str());
    cntx->DBLIB_SetPacketSize(s);
      }
    }
    return cntx;
}

void DBAPI_RegisterDriver_DBLIB(I_DriverMgr& mgr)
{
    mgr.RegisterDriver("dblib", DBLIB_CreateContext);
}

extern "C" {
    NCBI_DBAPIDRIVER_DBLIB_EXPORT
    void* DBAPI_E_dblib()
    {
        return (void*)DBAPI_RegisterDriver_DBLIB;
    }
}

#else

I_DriverContext* MSDBLIB_CreateContext(map<string,string>* attr = 0)
{
    DBINT version= DBVERSION_46;

    return new CDBLibContext(version);
}

void DBAPI_RegisterDriver_MSDBLIB(I_DriverMgr& mgr)
{
    mgr.RegisterDriver("msdblib", MSDBLIB_CreateContext);
}

extern "C" {
    NCBI_DBAPIDRIVER_MSDBLIB_EXPORT
    void* DBAPI_E_msdblib()
    {
        return (void*)DBAPI_RegisterDriver_MSDBLIB;
    }
}

#endif

END_NCBI_SCOPE



/*
 * ===========================================================================
 * $Log: context.cpp,v $
 * Revision 1000.4  2004/06/16 17:20:27  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.31
 *
 * Revision 1.31  2004/06/16 16:08:51  ivanov
 * Added export specifier for DBAPI_E_dblib()
 *
 * Revision 1.30  2004/05/17 21:12:41  gorelenk
 * Added include of PCH ncbi_pch.hpp
 *
 * Revision 1.29  2004/04/08 12:18:35  ivanov
 * Fixed name of export specifier for DBAPI_E_msdblib()
 *
 * Revision 1.28  2004/04/07 13:41:47  gorelenk
 * Added export prefix to implementations of DBAPI_E_* functions.
 *
 * Revision 1.27  2003/11/14 20:46:21  soussov
 * implements DoNotConnect mode
 *
 * Revision 1.26  2003/10/27 17:00:29  soussov
 * adds code to prevent the return of broken connection from the pool
 *
 * Revision 1.25  2003/08/28 19:54:36  soussov
 * allowes print messages go to handler
 *
 * Revision 1.24  2003/07/21 22:00:47  soussov
 * fixes bug whith pool name mismatch in Connect()
 *
 * Revision 1.23  2003/07/17 20:46:02  soussov
 * connections pool improvements
 *
 * Revision 1.22  2003/04/18 20:26:39  soussov
 * fixes typo in Connect for reusable connection with specified connection pool
 *
 * Revision 1.21  2003/04/01 21:50:26  soussov
 * new attribute 'packet=XXX' (where XXX is a packet size) added to DBLIB_CreateContext
 *
 * Revision 1.20  2002/12/20 17:56:33  soussov
 * renames the members of ECapability enum
 *
 * Revision 1.19  2002/09/19 20:05:43  vasilche
 * Safe initialization of static mutexes
 *
 * Revision 1.18  2002/07/10 15:47:46  soussov
 * fixed typo in DBAPI_RegisterDriver_MSDBLIB
 *
 * Revision 1.17  2002/07/09 17:01:53  soussov
 * the register functions for msdblib was renamed
 *
 * Revision 1.16  2002/07/02 16:05:49  soussov
 * splitting Sybase dblib and MS dblib
 *
 * Revision 1.15  2002/06/19 15:02:03  soussov
 * changes default version from unknown to 46
 *
 * Revision 1.14  2002/06/17 21:26:32  soussov
 * dbsetversion added
 *
 * Revision 1.13  2002/04/19 15:05:50  soussov
 * adds static mutex to Connect
 *
 * Revision 1.12  2002/04/12 22:13:09  soussov
 * mutex protection for contex constructor added
 *
 * Revision 1.11  2002/03/26 15:37:52  soussov
 * new image/text operations added
 *
 * Revision 1.10  2002/02/26 17:53:25  sapojnik
 * Removed blob size limits for MS SQL
 *
 * Revision 1.9  2002/01/17 22:12:47  soussov
 * changes driver registration
 *
 * Revision 1.8  2002/01/15 15:45:50  sapojnik
 * Use DBVERSION_46/100 constants only ifndef NCBI_OS_MSWIN
 *
 * Revision 1.7  2002/01/11 20:25:08  soussov
 * driver manager support added
 *
 * Revision 1.6  2002/01/08 18:10:18  sapojnik
 * Syabse to MSSQL name translations moved to interface_p.hpp
 *
 * Revision 1.5  2002/01/03 17:01:56  sapojnik
 * fixing CR/LF mixup
 *
 * Revision 1.4  2002/01/03 15:46:23  sapojnik
 * ported to MS SQL (about 12 'ifdef NCBI_OS_MSWIN' in 6 files)
 *
 * Revision 1.3  2001/10/24 16:40:00  lavr
 * Comment out unused function arguments
 *
 * Revision 1.2  2001/10/22 18:38:49  soussov
 * sending NULL instead of emty string fixed
 *
 * Revision 1.1  2001/10/22 15:19:55  lavr
 * This is a major revamp (by Anton Lavrentiev, with help from Vladimir
 * Soussov and Denis Vakatov) of the DBAPI "driver" libs originally
 * written by Vladimir Soussov. The revamp follows the one of CTLib
 * driver, and it involved massive code shuffling and grooming, numerous
 * local API redesigns, adding comments and incorporating DBAPI to
 * the C++ Toolkit.
 *
 * ===========================================================================
 */