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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include "HandleBase.hpp"
HandleBase::~HandleBase()
{
delete m_ctx;
m_ctx = 0;
}
void
HandleBase::saveCtx(Ctx& ctx)
{
delete m_ctx;
m_ctx = &ctx;
}
// get diagnostics
void
HandleBase::sqlGetDiagField(Ctx& ctx, SQLSMALLINT recNumber, SQLSMALLINT diagIdentifier, SQLPOINTER diagInfo, SQLSMALLINT bufferLength, SQLSMALLINT* stringLength)
{
const DiagSpec& spec = DiagSpec::find(diagIdentifier);
if (spec.m_pos == Diag_pos_end) {
ctx.setCode(SQL_ERROR);
return;
}
const bool header = (spec.m_pos == Diag_pos_header);
const bool status = (spec.m_pos == Diag_pos_status);
ctx_assert(header || status);
if (! (spec.m_handles & odbcHandle())) {
ctx.setCode(SQL_ERROR);
return;
}
if (header) {
recNumber = 0; // ignored for header fields, so fix it
if (m_ctx == 0) {
if (diagIdentifier == SQL_DIAG_NUMBER) {
SQLINTEGER n = 0;
OdbcData data(n);
data.copyout(ctx, diagInfo, bufferLength, 0, stringLength);
return;
}
if (diagIdentifier == SQL_DIAG_RETURNCODE) {
SQLSMALLINT n = 0;
OdbcData data(n);
data.copyout(ctx, diagInfo, bufferLength, 0, stringLength);
return;
}
return;
}
}
if (status) {
if (recNumber <= 0) {
ctx.setCode(SQL_ERROR);
return;
}
if (m_ctx == 0) {
if ((unsigned)recNumber > 0) {
ctx.setCode(SQL_NO_DATA);
return;
}
return;
}
if ((unsigned)recNumber > m_ctx->diagArea().numStatus()) {
ctx.setCode(SQL_NO_DATA);
return;
}
}
OdbcData data;
ctx_assert(m_ctx != 0);
m_ctx->diagArea().getRecord(ctx, recNumber, diagIdentifier, data);
if (data.type() != OdbcData::Undef)
data.copyout(ctx, diagInfo, bufferLength, 0, stringLength);
}
void
HandleBase::sqlGetDiagRec(Ctx& ctx, SQLSMALLINT recNumber, SQLCHAR* sqlstate, SQLINTEGER* nativeError, SQLCHAR* messageText, SQLSMALLINT bufferLength, SQLSMALLINT* textLength)
{
sqlGetDiagField(ctx, recNumber, SQL_DIAG_SQLSTATE, static_cast<SQLPOINTER>(sqlstate), 5 + 1, 0);
sqlGetDiagField(ctx, recNumber, SQL_DIAG_NATIVE, static_cast<SQLPOINTER>(nativeError), -1, 0);
sqlGetDiagField(ctx, recNumber, SQL_DIAG_MESSAGE_TEXT, static_cast<SQLPOINTER>(messageText), bufferLength, textLength);
}
void
HandleBase::sqlError(Ctx& ctx, SQLCHAR* sqlstate, SQLINTEGER* nativeError, SQLCHAR* messageText, SQLSMALLINT bufferLength, SQLSMALLINT* textLength)
{
if (m_ctx == 0) {
ctx.setCode(SQL_NO_DATA);
return;
}
const SQLSMALLINT recNumber = m_ctx->diagArea().nextRecNumber();
if (recNumber == 0) {
ctx.setCode(SQL_NO_DATA);
return;
}
sqlGetDiagField(ctx, recNumber, SQL_DIAG_SQLSTATE, static_cast<SQLPOINTER>(sqlstate), 5 + 1, 0);
sqlGetDiagField(ctx, recNumber, SQL_DIAG_NATIVE, static_cast<SQLPOINTER>(nativeError), -1, 0);
sqlGetDiagField(ctx, recNumber, SQL_DIAG_MESSAGE_TEXT, static_cast<SQLPOINTER>(messageText), bufferLength, textLength);
}
// common code for attributes
void
HandleBase::baseSetHandleAttr(Ctx& ctx, AttrArea& attrArea, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER stringLength)
{
const AttrSpec& spec = attrArea.findSpec(attribute);
if (spec.m_mode == Attr_mode_undef) { // not found
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "undefined attribute id %d", (int)attribute);
return;
}
if (spec.m_mode == Attr_mode_readonly) { // read only
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "read-only attribute id %d", (int)attribute);
return;
}
OdbcData data;
data.copyin(ctx, spec.m_type, value, stringLength);
if (! ctx.ok())
return;
attrArea.setAttr(ctx, attribute, data);
}
void
HandleBase::baseGetHandleAttr(Ctx& ctx, AttrArea& attrArea, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength)
{
const AttrSpec& spec = attrArea.findSpec(attribute);
if (spec.m_mode == Attr_mode_undef) { // not found
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "undefined attribute id %d", (int)attribute);
return;
}
OdbcData data;
attrArea.getAttr(ctx, attribute, data);
if (! ctx.ok())
return;
data.copyout(ctx, value, bufferLength, stringLength);
}
void
HandleBase::baseSetHandleOption(Ctx& ctx, AttrArea& attrArea, SQLUSMALLINT option, SQLUINTEGER value)
{
baseSetHandleAttr(ctx, attrArea, static_cast<SQLINTEGER>(option), reinterpret_cast<SQLPOINTER>(value), 0);
}
void
HandleBase::baseGetHandleOption(Ctx& ctx, AttrArea& attrArea, SQLUSMALLINT option, SQLPOINTER value)
{
baseGetHandleAttr(ctx, attrArea, static_cast<SQLINTEGER>(option), value, SQL_NTS, 0);
}
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