71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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/*
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filehandle - filehandle management and caching
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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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#include "lib/llist.h"
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#include "lib/safeclib.h"
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#include "backend/file.h"
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#include "backend/filehandle.h"
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#include "backend/filedescriptor.h"
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#include <unistd.h>
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NOBUG_DEFINE_FLAG_PARENT (filehandle, file_all);
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LumieraFilehandle
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lumiera_filehandle_new ()
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{
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LumieraFilehandle self = lumiera_malloc (sizeof (lumiera_filehandle));
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TRACE (filehandle, "%p", self);
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llist_init (&self->cachenode);
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self->fd = -1;
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self->use_cnt = 1;
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self->descriptor = NULL;
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return self;
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}
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void*
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lumiera_filehandle_destroy_node (LList node)
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{
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TRACE (filehandle);
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REQUIRE (llist_is_empty (node));
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LumieraFilehandle self = (LumieraFilehandle)node;
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REQUIRE (self->use_cnt == 0);
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if (self->fd >= 0)
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close (self->fd);
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self->fd = -1;
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self->descriptor = NULL;
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return self;
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}
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int
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lumiera_filehandle_get (LumieraFilehandle self)
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{
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REQUIRE (self->descriptor);
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return -1;
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}
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