ringbuffer.h

   1 /* ringbuffer.h
   2  * Definitions for capture ringbuffer files
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #ifndef __RINGBUFFER_H__
  26 #define __RINGBUFFER_H__
  27
  28 #include <stdio.h>
  29 #include "file.h"
  30 #include "wiretap/wtap.h"
  31
  32 #define RINGBUFFER_UNLIMITED_FILES 0
  33 /* Minimum number of ringbuffer files */
  34 #define RINGBUFFER_MIN_NUM_FILES 0
  35 /* Maximum number of ringbuffer files */
  36 /* Avoid crashes on very large numbers. Should be a power of 10 */
  37 #define RINGBUFFER_MAX_NUM_FILES 100000
  38 /* Maximum number for FAT filesystems */
  39 #define RINGBUFFER_WARN_NUM_FILES 65535
  40
  41 int ringbuf_init(const char *capture_name, guint num_files, gboolean group_read_access);
  42 const gchar *ringbuf_current_filename(void);
  43 FILE *ringbuf_init_libpcap_fdopen(int *err);
  44 gboolean ringbuf_switch_file(FILE **pdh, gchar **save_file, int *save_file_fd,
  45                              int *err);
  46 gboolean ringbuf_libpcap_dump_close(gchar **save_file, int *err);
  47 void ringbuf_free(void);
  48 void ringbuf_error_cleanup(void);
  49
  50 #endif /* ringbuffer.h */