InitCDSLib.h

/*
 * PROGRAM: JRD Access Method
 * MODULE: InitCDSLib.h
 * DESCRIPTION: support for correct usage of CDS library by the engine
 *
 * The contents of this file are subject to the Initial
 * Developer's Public License Version 1.0 (the "License");
 * you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at
 * http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
 *
 * Software distributed under the License is distributed AS IS,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights
 * and limitations under the License.
 *
 * The Original Code was created by Vladyslav Khorsun for the
 * Firebird Open Source RDBMS project.
 *
 * Copyright (c) 2022 Vladyslav Khorsun <hvlad@users.sourceforge.net>
 * and all contributors signed below.
 *
 * All Rights Reserved.
 * Contributor(s): ______________________________________.
 *
*/

#ifndef FB_INIT_CDSLIB_H
#defineFB_INIT_CDSLIB_H

#include"../common/classes/alloc.h"

// Uncomment to write final memory usage stats into firebird.log.
// See ~InitCDS() and ~InitPool() in CCH

//#define DEBUG_CDS_MEMORY

namespaceJrd
{

classInitCDS
{
public:

explicitInitCDS(MemoryPool&);
~InitCDS();

// Creates memory pool that will not be deleted until cds finish its work.
// Should be used to allocate structures by cds classes.
static Firebird::MemoryPool* createPool();

private:
staticvoid* alloc(size_t size)
 {
return m_pool->allocate(size ALLOC_ARGS);
 }

staticvoidfree(void* p)
 {
 m_pool->deallocate(p);
 }

static Firebird::Array<Firebird::MemoryPool*>* m_pools;
static Firebird::MemoryPool* m_pool;
static Firebird::MemoryStats m_stats;
};

} // namespace Jrd

#endif// FB_INIT_CDSLIB_H