Marked libisofs SVN copy as outdated (use bzr on lp)
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49
libisofs_outdated/branches/thomas/libisofs/filter.c
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49
libisofs_outdated/branches/thomas/libisofs/filter.c
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/*
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* Copyright (c) 2008 Vreixo Formoso
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*
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* This file is part of the libisofs project; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See COPYING file for details.
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*/
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#include "libisofs.h"
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#include "filter.h"
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#include "node.h"
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void iso_filter_ref(FilterContext *filter)
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{
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++filter->refcount;
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}
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void iso_filter_unref(FilterContext *filter)
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{
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if (--filter->refcount == 0) {
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filter->free(filter);
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free(filter);
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}
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}
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int iso_file_add_filter(IsoFile *file, FilterContext *filter, int flag)
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{
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int ret;
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IsoStream *original, *filtered;
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if (file == NULL || filter == NULL) {
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return ISO_NULL_POINTER;
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}
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original = file->stream;
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if (!iso_stream_is_repeatable(original)) {
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/* TODO use custom error */
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return ISO_WRONG_ARG_VALUE;
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}
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ret = filter->get_filter(filter, original, &filtered);
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if (ret < 0) {
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return ret;
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}
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iso_stream_unref(original);
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file->stream = filtered;
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return ISO_SUCCESS;
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}
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