LUMIERA.clone/src/backend/filedescriptorregistry.h

58 lines
1.7 KiB
C

/*
filedescriptorregistry.h - register all files in use
Copyright (C) Lumiera.org
2008, 2010, Christian Thaeter <ct@pipapo.org>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef LUMIERA_FILEDESCRIPTORREGISTRY_H
#define LUMIERA_FILEDESCRIPTORREGISTRY_H
#include "backend/filedescriptor.h"
/**
* Initialize the global filedescriptor registry.
* Opening hardlinked files will be targeted to the same filedescriptor.
* This function never fails but dies on error. TODO backend/subsystem failure
*/
void
lumiera_filedescriptorregistry_init (void);
/**
* Destroy and free the global filedescriptor registry.
* Never fails.
*/
void
lumiera_filedescriptorregistry_destroy (void);
/**
* Ensures that a filedescriptor is in the registry.
* Looks template up and if not found, create a new one from template.
* @return filedescriptor from registry
*/
LumieraFiledescriptor
lumiera_filedescriptorregistry_ensure (LumieraFiledescriptor template);
/**
* Removes a Filedescriptor from the registry.
*/
void
lumiera_filedescriptorregistry_remove (LumieraFiledescriptor self);
#endif