C++ (Cpp) bcp_moretext示例

示例#1

bool CDBL_BCPInCmd::Send(void)
{
    char param_buff[2048]; // maximal row size, assured of buffer overruns

    if (!x_AssignParams(param_buff)) {
        SetHasFailed();
        DATABASE_DRIVER_ERROR( "Cannot assign params." + GetDbgInfo(), 223004 );
    }

    SetWasSent();

    if (Check(bcp_sendrow(GetCmd())) != SUCCEED) {
        SetHasFailed();
        DATABASE_DRIVER_ERROR( "bcp_sendrow failed." + GetDbgInfo(), 223005 );
    }

    if (m_HasTextImage) { // send text/image data
        char buff[1800]; // text/image page size

        for (unsigned int i = 0; i < GetBindParamsImpl().NofParams(); i++) {
            if (GetBindParamsImpl().GetParamStatus(i) == 0)
                continue;

            CDB_Object& param = *GetBindParamsImpl().GetParam(i);

            if (param.GetType() != eDB_Text &&
                param.GetType() != eDB_Image)
                continue;

            CDB_Stream& val = dynamic_cast<CDB_Stream&> (param);
            size_t s = val.Size();
            do {
                size_t l = val.Read(buff, sizeof(buff));
                if (l > s)
                    l = s;
                if (Check(bcp_moretext(GetCmd(), (DBINT) l, (BYTE*) buff)) != SUCCEED) {
                    SetHasFailed();
                    string error;

                    if (param.GetType() == eDB_Text) {
                        error = "bcp_moretext for text failed.";
                    } else {
                        error = "bcp_moretext for image failed.";
                    }
                    DATABASE_DRIVER_ERROR( error + GetDbgInfo(), 223006 );
                }
                if (!l)
                    break;
                s -= l;
            } while (s);
        }
    }

    ++m_RowCount;

    return true;
}

示例#2

bool CODBC_BCPInCmd::Send(void)
{
    char param_buff[2048]; // maximal row size, assured of buffer overruns

    if (!x_AssignParams(param_buff)) {
        SetHasFailed();
        string err_message = "Cannot assign params." + GetDbgInfo();
        DATABASE_DRIVER_ERROR( err_message, 423004 );
    }

    SetWasSent();

    if (bcp_sendrow(GetHandle()) != SUCCEED) {
        SetHasFailed();
        ReportErrors();
        string err_message = "bcp_sendrow failed." + GetDbgInfo();
        DATABASE_DRIVER_ERROR( err_message, 423005 );
    }

    if (m_HasTextImage) { // send text/image data
        char buff[1800]; // text/image page size

        for (unsigned int i = 0; i < GetBindParamsImpl().NofParams(); ++i) {
            if (GetBindParamsImpl().GetParamStatus(i) == 0)
                continue;

            CDB_Object& param = *GetBindParamsImpl().GetParam(i);

            if (param.GetType() != eDB_Image &&
                (param.GetType() != eDB_Text  ||  param.IsNULL()))
                continue;

            CDB_Stream& val = dynamic_cast<CDB_Stream&> (param);

            size_t left_bytes = val.Size();
            size_t len = 0;
            size_t valid_len = 0;
            size_t invalid_len = 0;

            do {
                invalid_len = len - valid_len;

                if (valid_len < len) {
                    memmove(buff, buff + valid_len, invalid_len);
                }

                len = val.Read(buff + invalid_len, sizeof(buff) - invalid_len);
                if (len > left_bytes) {
                    len = left_bytes;
                }

                valid_len = CUtf8::GetValidBytesCount( CTempString(buff, len));

                CODBCString odbc_str(buff, len);

                // !!! TODO: Decode to UCS2 if needed !!!!
                if (bcp_moretext(GetHandle(),
                                 (DBINT) valid_len,
                                 (LPCBYTE)static_cast<const char*>(odbc_str)
                                 ) != SUCCEED) {
                    SetHasFailed();
                    ReportErrors();

                    string err_text;
                    if (param.GetType() == eDB_Text) {
                        err_text = "bcp_moretext for text failed.";
                    } else {
                        err_text = "bcp_moretext for image failed.";
                    }
                    err_text += GetDbgInfo();
                    DATABASE_DRIVER_ERROR( err_text, 423006 );
                }

                if (!valid_len) {
                    break;
                }

                left_bytes -= valid_len;
            } while (left_bytes);
        }
    }

    return true;
}