mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-02-01 00:03:03 +01:00
111 lines
2.1 KiB
C++
111 lines
2.1 KiB
C++
/*
|
|
* PROGRAM: Firebird interface.
|
|
* MODULE: ImplementHelper.h
|
|
* DESCRIPTION: Tools to help write plugins.
|
|
*
|
|
* 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 Alex Peshkov
|
|
* for the Firebird Open Source RDBMS project.
|
|
*
|
|
* Copyright (c) 2010 Alex Peshkov <peshkoff at mail.ru>
|
|
* and all contributors signed below.
|
|
*
|
|
* All Rights Reserved.
|
|
* Contributor(s): ______________________________________.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef FB_COMMON_CLASSES_IMPLEMENT_HELPER
|
|
#define FB_COMMON_CLASSES_IMPLEMENT_HELPER
|
|
|
|
#include "../common/classes/Interface.h"
|
|
|
|
//#include "../jrd/gds_proto.h"
|
|
#include "../common/classes/alloc.h"
|
|
|
|
namespace Firebird {
|
|
|
|
// If you need interface on stack, use it in template AutoPtr<YourInterface, AutoInterface>
|
|
// as second parameter
|
|
class AutoInterface
|
|
{
|
|
public:
|
|
static void clear(Interface* ptr)
|
|
{
|
|
if (ptr)
|
|
{
|
|
ptr->release();
|
|
}
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
T* interfaceAlloc()
|
|
{
|
|
/***
|
|
void* ptr = gds__alloc(sizeof(T));
|
|
return new(ptr) T;
|
|
***/
|
|
return FB_NEW(*getDefaultMemoryPool()) T;
|
|
}
|
|
|
|
template <typename T>
|
|
void interfaceFree(T* ptr)
|
|
{
|
|
/***
|
|
delete((void*) 0) ptr;
|
|
gds__free(ptr);
|
|
***/
|
|
delete ptr;
|
|
}
|
|
|
|
// Template to create static instance of plugin
|
|
template <typename C, unsigned int T, char NM[]>
|
|
class PluginHelper : public C
|
|
{
|
|
public:
|
|
PluginHelper()
|
|
{
|
|
fb_register_plugin(this);
|
|
}
|
|
|
|
virtual const char* name() const
|
|
{
|
|
return NM;
|
|
}
|
|
|
|
virtual unsigned int type() const
|
|
{
|
|
return T;
|
|
}
|
|
|
|
virtual void link(Plugin* chain)
|
|
{
|
|
pp = chain;
|
|
}
|
|
|
|
virtual Plugin* next() const
|
|
{
|
|
return pp;
|
|
}
|
|
|
|
private:
|
|
Plugin* pp;
|
|
};
|
|
|
|
} // namespace Firebird
|
|
|
|
|
|
#endif // FB_COMMON_CLASSES_IMPLEMENT_HELPER
|