0afce7ca81
Almost completely rewritten in order to: - be able to use a unlimited number of ringbuffer files 0 specified with -b argument or in the GUI, means that the number of file is unlimited. else the maximum number of ring buffer files is arbitrarily set to 1024. - close the current file and open (truncating it) the next file at switch - set the final file name once open (or reopen) - avoid the deletion of files that could not be truncated (can't arise now) and do not erase empty files The idea behind that is to remove the limitation of the maximum # of ringbuffer files being less than the maximum # of open fd per process and to be able to reduce the amount of virtual memory usage (having only one file open at most) or the amount of file system usage (by truncating the files at switch and not the capture stop, and by closing them which makes possible their move or deletion after a switch). svn path=/trunk/; revision=7912
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/* capture.h
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* Definitions for packet capture windows
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*
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* $Id: ringbuffer.h,v 1.3 2003/06/22 16:06:03 deniel Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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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 General Public License
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* as published by the Free Software Foundation; either version 2
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* 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
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* GNU General Public License for more details.
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*
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __RINGBUFFER_H__
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#define __RINGBUFFER_H__
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#ifdef HAVE_LIBPCAP
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#include <stdio.h>
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#include "file.h"
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#include "wiretap/wtap.h"
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#define RINGBUFFER_UNLIMITED_FILES 0
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/* minimum number of ringbuffer files */
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#define RINGBUFFER_MIN_NUM_FILES 0
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/* maximum number of ringbuffer files */
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#define RINGBUFFER_MAX_NUM_FILES 1024
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int ringbuf_init(const char *capture_name, guint num_files);
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wtap_dumper* ringbuf_init_wtap_dump_fdopen(int filetype, int linktype,
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int snaplen, int *err);
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gboolean ringbuf_switch_file(capture_file *cf, wtap_dumper **pdh, int *err);
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gboolean ringbuf_wtap_dump_close(capture_file *cf, int *err);
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void ringbuf_free(void);
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void ringbuf_error_cleanup(void);
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#endif /* HAVE_LIBPCAP */
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#endif /* ringbuffer.h */
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