CDB_Object* CMySQL_RowResult::GetItem(CDB_Object* item_buf, I_Result::EGetItem policy)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum()) {
return 0;
}
CDB_Object* r =
s_GetItem(policy, GetDefineParams().GetDataType(m_CurrItem), item_buf,
item_buf ? item_buf->GetType() : eDB_UnsupportedType,
m_Row[m_CurrItem], m_Lengths[m_CurrItem]);
++m_CurrItem;
return r;
}
size_t CDBL_ComputeResult::ReadItem(void* buffer, size_t buffer_size,
bool* is_null)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum()) {
if (is_null)
*is_null = true;
return 0;
}
const BYTE* d_ptr = Check(dbadata(GetCmd(), m_ComputeId, m_CurrItem + 1));
DBINT d_len = Check(dbadlen(GetCmd(), m_ComputeId, m_CurrItem + 1));
if (d_ptr == 0 || d_len < 1) { // NULL value
++m_CurrItem;
m_Offset = 0;
if (is_null)
*is_null = true;
return 0;
}
if (is_null)
*is_null = false;
if ((size_t) d_len - m_Offset < buffer_size)
buffer_size = (size_t) d_len - m_Offset;
memcpy(buffer, d_ptr + m_Offset, buffer_size);
m_Offset += buffer_size;
if (m_Offset >= (size_t) d_len) {
m_Offset = 0;
++m_CurrItem;
}
return buffer_size;
}
bool CTL_RowResult::Fetch()
{
SetCurrentItemNum(-1);
if ( m_EOR ) {
return false;
}
// Reset NullValue flags ...
for (unsigned int nof_items = 0; nof_items < GetDefineParams().GetNum(); ++nof_items) {
m_NullValue[nof_items] = eNullUnknown;
}
CheckIsDead();
switch ( Check(ct_fetch(x_GetSybaseCmd(), CS_UNUSED, CS_UNUSED, CS_UNUSED, 0)) ) {
case CS_SUCCEED:
SetCurrentItemNum(0);
return true;
case CS_END_DATA:
m_EOR = true;
return false;
case CS_ROW_FAIL:
DATABASE_DRIVER_ERROR( "Error while fetching the row." + GetDbgInfo(), 130003 );
case CS_FAIL:
DATABASE_DRIVER_ERROR("ct_fetch has failed. "
"You need to cancel the command." +
GetDbgInfo(),
130006 );
case CS_CANCELED:
DATABASE_DRIVER_ERROR( "The command has been canceled." + GetDbgInfo(), 130004 );
default:
DATABASE_DRIVER_ERROR( "The connection is busy." + GetDbgInfo(), 130005 );
}
}
bool CODBC_RowResult::SkipItem()
{
if ((unsigned int) m_CurrItem < GetDefineParams().GetNum()) {
++m_CurrItem;
return true;
}
return false;
}
bool CTL_RowResult::SkipItem()
{
if (GetCurrentItemNum() < (int) GetDefineParams().GetNum()) {
IncCurrentItemNum();
return true;
}
return false;
}
bool CDBL_ResultBase::SkipItem()
{
if ((unsigned int) m_CurrItem < GetDefineParams().GetNum()) {
++m_CurrItem;
m_Offset = 0;
return true;
}
return false;
}
CDB_Object* CODBC_RowResult::GetItem(CDB_Object* item_buf, I_Result::EGetItem policy)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum() || m_CurrItem == -1) {
return 0;
}
CDB_Object* item = item_buf? x_LoadItem(policy, item_buf) : x_MakeItem();
++m_CurrItem;
return item;
}
CDB_Object* CDBL_ComputeResult::GetItem(CDB_Object* item_buff, I_Result::EGetItem /*policy*/)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum()) {
return 0;
}
CDB_Object* r = AltGetItem(m_ComputeId,
m_CurrItem + 1,
&m_ColFmt[m_CurrItem],
item_buff);
++m_CurrItem;
m_Offset = 0;
return r;
}
CDB_Object* CDBL_RowResult::GetItem(CDB_Object* item_buff, I_Result::EGetItem policy)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum()) {
return 0;
}
CDB_Object* r = GetItemInternal(policy,
m_CurrItem + 1,
&m_ColFmt[m_CurrItem],
item_buff);
++m_CurrItem;
m_Offset = 0;
return r;
}
CDB_Object* CTL_RowResult::GetItem(CDB_Object* item_buf, I_Result::EGetItem policy)
{
if ((unsigned int) CurrentItemNo() >= GetDefineParams().GetNum() || CurrentItemNo() == -1) {
return 0;
}
CDB_Object* item = GetItemInternal(
policy,
x_GetSybaseCmd(),
CurrentItemNo() + 1,
m_ColFmt[CurrentItemNo()],
item_buf);
IncCurrentItemNum();
return item;
}
bool CTL_CursorResult::SkipItem()
{
if (GetCurrentItemNum() < (int) GetDefineParams().GetNum()) {
IncCurrentItemNum();
char dummy[4];
bool is_null = false;
switch ( my_ct_get_data(x_GetSybaseCmd(), GetCurrentItemNum(), dummy, 0, 0, is_null) ) {
case CS_END_ITEM:
case CS_END_DATA:
case CS_SUCCEED:
break;
case CS_CANCELED:
DATABASE_DRIVER_ERROR( "The command has been canceled." + GetDbgInfo(), 130004 );
default:
DATABASE_DRIVER_ERROR( "ct_get_data failed." + GetDbgInfo(), 130000 );
}
return true;
}
return false;
}
I_ITDescriptor*
CTL_RowResult::GetImageOrTextDescriptor(int item_num)
{
bool is_null = false;
if ((unsigned int) item_num >= GetDefineParams().GetNum() || item_num < 0) {
return 0;
}
char dummy[4];
CS_INT outlen = 0;
switch (my_ct_get_data(x_GetSybaseCmd(), item_num + 1, dummy, 0, &outlen, is_null) ) {
case CS_END_ITEM:
case CS_END_DATA:
case CS_SUCCEED:
break;
case CS_CANCELED:
DATABASE_DRIVER_ERROR( "The command has been canceled." + GetDbgInfo(), 130004 );
default:
DATABASE_DRIVER_ERROR( "ct_get_data failed." + GetDbgInfo(), 130000 );
}
if (is_null)
m_NullValue[item_num] = eIsNull;
auto_ptr<CTL_ITDescriptor> desc(new CTL_ITDescriptor);
bool rc = (Check(ct_data_info(x_GetSybaseCmd(),
CS_GET,
item_num + 1,
&desc->m_Desc))
!= CS_SUCCEED);
CHECK_DRIVER_ERROR( rc, "ct_data_info failed." + GetDbgInfo(), 130010 );
return desc.release();
}
size_t CTL_RowResult::ReadItem(void* buffer, size_t buffer_size,
bool* is_null)
{
if ((unsigned int) CurrentItemNo() >= GetDefineParams().GetNum() || CurrentItemNo() == -1) {
return 0;
}
if (m_NullValue[GetCurrentItemNum()] == eIsNull) {
if (is_null)
*is_null = true;
IncCurrentItemNum();
return 0;
}
CS_INT outlen = 0;
if((buffer == 0) && (buffer_size == 0)) {
buffer= (void*)(&buffer_size);
}
bool is_null_tmp;
const CS_RETCODE rc = my_ct_get_data(
x_GetSybaseCmd(),
GetCurrentItemNum() + 1,
buffer,
(CS_INT) buffer_size,
&outlen,
is_null_tmp
);
switch (rc) {
case CS_END_ITEM:
// This is not the last column in the row.
case CS_END_DATA:
// This is the last column in the row.
if (m_NullValue[GetCurrentItemNum()] == eNullUnknown) {
m_NullValue[GetCurrentItemNum()] = (is_null_tmp ? eIsNull : eIsNotNull);
}
if (is_null) {
if (m_NullValue[GetCurrentItemNum()] != eNullUnknown) {
*is_null = (m_NullValue[GetCurrentItemNum()] == eIsNull);
} else {
*is_null = (outlen == 0);
}
}
#ifdef FTDS_IN_USE
if (rc == CS_END_ITEM) {
IncCurrentItemNum();
}
#else
IncCurrentItemNum(); // That won't work with the ftds64 driver
#endif
break;
case CS_SUCCEED:
// ct_get_data successfully retrieved a chunk of data that is
// not the last chunk of data for this column.
break;
case CS_CANCELED:
DATABASE_DRIVER_ERROR( "The command has been canceled." + GetDbgInfo(), 130004 );
default:
DATABASE_DRIVER_ERROR( "ct_get_data failed." + GetDbgInfo(), 130000 );
}
return (size_t) outlen;
}
size_t CODBC_RowResult::ReadItem(void* buffer,size_t buffer_size,bool* is_null)
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum() || m_CurrItem == -1 ||
buffer == 0 || buffer_size == 0) {
return 0;
}
SQLLEN f = 0;
if(is_null) *is_null= false;
SQLSMALLINT data_type = m_ColFmt[m_CurrItem].DataType;
while (m_HasMoreData && m_LastReadData.size() < buffer_size) {
m_HasMoreData = false;
string next_data;
size_t next_len = 0;
switch(SQLGetData(GetHandle(), m_CurrItem + 1, SQL_C_BINARY, buffer, buffer_size, &f)) {
case SQL_SUCCESS_WITH_INFO:
switch(f) {
case SQL_NO_TOTAL:
next_data.append((char*) buffer, buffer_size);
m_HasMoreData = true;
break;
case SQL_NULL_DATA:
if(is_null) *is_null= true;
break;
default:
if ( f < 0 ) {
ReportErrors();
return 0;
}
m_HasMoreData = true;
next_len = static_cast<size_t>(f);
if (next_len >= buffer_size) {
next_len = buffer_size;
}
next_data.append((char*) buffer, next_len);
break;
}
break;
case SQL_SUCCESS:
if(f == SQL_NULL_DATA) {
if(is_null) *is_null= true;
}
else {
next_len = (f >= 0)? ((size_t)f) : 0;
next_data.append((char*) buffer, next_len);
}
break;
case SQL_NO_DATA:
if(f == SQL_NULL_DATA) {
if(is_null) *is_null= true;
}
break;
case SQL_ERROR:
ReportErrors();
return 0;
default:
{
string err_message = "SQLGetData failed." + GetDbgInfo();
DATABASE_DRIVER_ERROR( err_message, 430026 );
}
}
#ifdef HAVE_WSTRING
if (data_type == SQL_WCHAR || data_type == SQL_WVARCHAR || data_type == SQL_WLONGVARCHAR) {
string conv_data
= (CODBCString((wchar_t*) next_data.data(),
next_data.size() / sizeof(wchar_t))
.ConvertTo(GetClientEncoding()));
m_LastReadData += conv_data;
}
else
#endif
{
m_LastReadData += next_data;
}
}
size_t return_len = m_LastReadData.size();
if (return_len > buffer_size) {
return_len = buffer_size;
}
memcpy(buffer, m_LastReadData.data(), return_len);
m_LastReadData = m_LastReadData.substr(return_len);
if (!m_HasMoreData && return_len <= buffer_size) {
++m_CurrItem;
m_HasMoreData = true;
}
return return_len;
}
I_ITDescriptor* CDBL_RowResult::GetImageOrTextDescriptor()
{
if ((unsigned int) m_CurrItem >= GetDefineParams().GetNum())
return 0;
return new CDBL_ITDescriptor(GetConnection(), GetCmd(), m_CurrItem+1);
}
int CTL_RowResult::GetColumnNum(void) const
{
return static_cast<int>(GetDefineParams().GetNum());
}
int CDBL_ResultBase::GetColumnNum(void) const
{
return static_cast<int>(GetDefineParams().GetNum());
}
