1a00613457
Fix blatant wrong check in Bzip2 compressor. Implement E8E9 filter fallback in Dispack. Improve dict buffer size checks. Reduce thread count to control memory usage in archive mode.
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012-2014 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*
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*/
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#ifndef _PCOMPRESS_H
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#define _PCOMPRESS_H
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#include <pcompress.h>
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#include "utils/utils.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define METADATA_CHUNK_SIZE (2 * 1024 * 1024)
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#define METADATA_HDR_SZ (CHUNK_HDR_SZ + COMPRESSED_CHUNKSIZE + pctx->mac_bytes)
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struct _meta_ctx {
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int meta_pipes[2];
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pc_ctx_t *pctx;
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pthread_t meta_thread;
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uchar_t *frombuf, *tobuf;
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uint64_t frompos;
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uchar_t checksum[CKSUM_MAX_BYTES];
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void *lz4_dat;
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int comp_level;
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mac_ctx_t chunk_hmac;
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} meta_ctx_t;
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struct _meta_msg {
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uchar_t *buf;
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size_t len;
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} meta_msg_t;
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meta_ctx_t *meta_ctx_create(pc_ctx_t *pctx, int file_version int comp_fd);
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int meta_ctx_write(meta_ctx_t *mctx, meta_msg_t *msg);
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int meta_ctx_read(meta_ctx_t *mctx, meta_msg_t *msg);
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int meta_ctx_done(meta_ctx_t *mctx);
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void meta_ctx_close_sink_channel(meta_ctx_t *mctx);
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void meta_ctx_close_src_channel(meta_ctx_t *mctx);
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#ifdef __cplusplus
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}
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#endif
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#endif
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