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/* Copyright (C) 2008 PrimeBase Technologies GmbH, Germany
*
* PrimeBase Media Stream for MySQL
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Original author: Paul McCullagh
* Continued development: Barry Leslie
*
* 2007-07-20
*
* H&G2JCtL
*
* Engine interface
*
*/
#pragma once
#ifndef __ENGINE_MS_H__
#define __ENGINE_MS_H__
#include "defs_ms.h"
#include "pbms.h"
class MSOpenTable;
#ifdef DRIZZLED
namespace drizzled
{
class Session;
} /* namespace drizzled */
#else
class THD;
#endif
class MSEngine : public CSObject {
public:
#ifdef DRIZZLED
static int startUp(PBMSResultPtr ) { return 0;}
static void shutDown() {}
#else
static int startUp(PBMSResultPtr result);
static void shutDown();
static const PBMSEnginePtr getEngineInfoAt(int indx);
#endif
static int exceptionToResult(CSException *e, PBMSResultPtr result);
static int errorResult(const char *func, const char *file, int line, int err, const char *message, PBMSResultPtr result);
static int osErrorResult(const char *func, const char *file, int line, int err, PBMSResultPtr result);
static int enterConnectionNoThd(CSThread **r_self, PBMSResultPtr result);
static int enterConnection(THD *thd, CSThread **r_self, PBMSResultPtr result, bool doCreate);
static void exitConnection();
static void closeConnection(THD* thd);
static int32_t dropDatabase(const char *db_name, PBMSResultPtr result);
static int32_t createBlob(const char *db_name, const char *tab_name, char *blob, size_t blob_len, PBMSBlobURLPtr blob_url, PBMSResultPtr result);
static int32_t referenceBlob(const char *db_name, const char *tab_name, PBMSBlobURLPtr ret_blob_url, char *blob_url, uint16_t col_index, PBMSResultPtr result);
static int32_t dereferenceBlob(const char *db_name, const char *tab_name, char *blob_url, PBMSResultPtr result);
static int32_t dropTable(const char *db_name, const char *tab_name, PBMSResultPtr result);
static int32_t renameTable(const char *from_db_name, const char *from_table, const char *to_db_name, const char *to_table, PBMSResultPtr result);
static void callCompleted(bool ok);
static bool couldBeURL(const char *url, size_t length);
private:
static bool try_createBlob(CSThread *self, const char *db_name, const char *tab_name, char *blob, size_t blob_len, PBMSBlobURLPtr blob_url);
static bool try_referenceBlob(CSThread *self, const char *db_name, const char *tab_name, PBMSBlobURLPtr ret_blob_url, char *blob_url, uint16_t col_index);
static bool try_dereferenceBlob(CSThread *self, const char *db_name, const char *tab_name, char *blob_url);
static bool try_dropDatabase(CSThread *self, const char *db_name);
static bool try_dropTable(CSThread *self, const char *db_name, const char *tab_name);
static bool try_renameTable(CSThread *self, const char *from_db_name, const char *from_table, const char *to_db_name, const char *to_table);
static MSOpenTable *openTable(const char *db_name, const char *tab_name, bool create);
static bool renameTable(const char *db_name, const char *from_table, const char *to_db_name, const char *to_table);
static void completeRenameTable(struct UnDoInfo *info, bool ok);
};
#endif
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