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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 <common/DiagArea.hpp>
#include "HandleRoot.hpp"
#include "HandleEnv.hpp"
#include "HandleDbc.hpp"
HandleEnv::HandleEnv(HandleRoot* pRoot) :
m_root(pRoot),
m_attrArea(m_attrSpec)
{
m_attrArea.setHandle(this);
}
HandleEnv::~HandleEnv() {
}
void
HandleEnv::ctor(Ctx& ctx)
{
}
void
HandleEnv::dtor(Ctx& ctx)
{
if (! m_listDbc.empty()) {
ctx.pushStatus(Sqlstate::_HY010, Error::Gen, "cannot delete environment handle - has %u associated connection handles", (unsigned)m_listDbc.size());
return;
}
}
// allocate and free handles
void
HandleEnv::sqlAllocConnect(Ctx& ctx, HandleDbc** ppDbc)
{
if (getOdbcVersion(ctx) == -1)
return;
if (ppDbc == 0) {
ctx.pushStatus(Sqlstate::_HY009, Error::Gen, "cannot allocate connection handle - null return address");
return;
}
HandleDbc* pDbc = new HandleDbc(this);
pDbc->ctor(ctx);
if (! ctx.ok()) {
pDbc->dtor(ctx);
delete pDbc;
return;
}
m_listDbc.push_back(pDbc);
getRoot()->record(SQL_HANDLE_DBC, pDbc, true);
*ppDbc = pDbc;
}
void
HandleEnv::sqlAllocHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase** ppChild)
{
if (getOdbcVersion(ctx) == -1)
return;
switch (childType) {
case SQL_HANDLE_DBC:
sqlAllocConnect(ctx, (HandleDbc**)ppChild);
return;
}
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "invalid child handle type %d", (int)childType);
}
void
HandleEnv::sqlFreeConnect(Ctx& ctx, HandleDbc* pDbc)
{
if (getOdbcVersion(ctx) == -1)
return;
pDbc->dtor(ctx);
if (! ctx.ok())
return;
m_listDbc.remove(pDbc);
getRoot()->record(SQL_HANDLE_DBC, pDbc, false);
delete pDbc;
}
void
HandleEnv::sqlFreeHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase* pChild)
{
if (getOdbcVersion(ctx) == -1)
return;
switch (childType) {
case SQL_HANDLE_DBC:
sqlFreeConnect(ctx, (HandleDbc*)pChild);
return;
}
ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "invalid child handle type %d", (int)childType);
}
// attributes
void
HandleEnv::sqlSetEnvAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER stringLength)
{
baseSetHandleAttr(ctx, m_attrArea, attribute, value, stringLength);
}
void
HandleEnv::sqlGetEnvAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength)
{
baseGetHandleAttr(ctx, m_attrArea, attribute, value, bufferLength, stringLength);
}
int
HandleEnv::getOdbcVersion(Ctx& ctx)
{
OdbcData data;
m_attrArea.getAttr(ctx, SQL_ATTR_ODBC_VERSION, data);
if (! ctx.ok())
return -1;
return data.integer();
}
// transactions
void
HandleEnv::sqlEndTran(Ctx& ctx, SQLSMALLINT completionType)
{
ctx_assert(false); // XXX
}
void
HandleEnv::sqlTransact(Ctx& ctx, SQLUSMALLINT completionType)
{
ctx_assert(false); // XXX
}
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