69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*
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filedescriptor.h - file handling
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Copyright (C) Lumiera.org
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2008, Christian Thaeter <ct@pipapo.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef LUMIERA_FILEDESCRIPTOR_H
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#define LUMIERA_FILEDESCRIPTOR_H
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#include "lib/mutex.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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typedef struct lumiera_filedescriptor_struct lumiera_filedescriptor;
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typedef lumiera_filedescriptor* LumieraFiledescriptor;
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#include "backend/filehandle.h"
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#include "backend/file.h"
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struct lumiera_filedescriptor_struct
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{
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struct stat stat; /* create after first open, maintained metadata, MUST BE FIRST! */
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int flags; /* open flags, must be masked for reopen */
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lumiera_mutex lock; /* locks operations on this file descriptor */
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unsigned reopened; /* count for reopens 0=not yet opened, 1=first, 2..=reopened */
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unsigned refcount; /* reference counter, all users sans registry */
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LumieraFilehandle handle;
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//LumieraFileMap mappings;
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//LumieraWriteBuffer writebuffer;
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RESOURCE_HANDLE (rh);
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};
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LumieraFiledescriptor
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lumiera_filedescriptor_acquire (const char* name, int flags);
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void
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lumiera_filedescriptor_release (LumieraFiledescriptor self);
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LumieraFiledescriptor
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lumiera_filedescriptor_new (LumieraFiledescriptor template);
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void
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lumiera_filedescriptor_delete (LumieraFiledescriptor self);
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#endif
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