wireshark/epan/epan.h
Guy Harris 23319ff023 Move the pointer to the "column_info" structure in the "frame_data"
structure to the "packet_info" structure; only stuff that's permanently
stored with each frame should be in the "frame_data" structure, and the
"column_info" structure is not guaranteed to hold the column values for
that frame at all times - it was only in the "frame_data" structure so
that it could be passed to dissectors, and, as all dissectors are now
passed a pointer to a "packet_info" structure, it could just as well be
put in the "packet_info" structure.

That saves memory, by shrinking the "frame_data" structure (there's one
of those per frame), and also lets us clean up the code a bit.

svn path=/trunk/; revision=4370
2001-12-10 00:26:21 +00:00

65 lines
1.5 KiB
C

/* epan.h
*
* $Id: epan.h,v 1.10 2001/12/10 00:26:16 guy Exp $
*
* Ethereal Protocol Analyzer Library
*
*/
#ifndef EPAN_H
#define EPAN_H
#include <glib.h>
struct _epan_dissect_t;
/* XXX - for now */
#include "packet.h"
#include "packet_info.h"
void epan_init(const char * plugindir, void (register_all_protocols)(void),
void (register_all_handoffs)(void));
void epan_cleanup(void);
void epan_conversation_init(void);
/* A client will create one epan_t for an entire dissection session.
* A single epan_t will be used to analyze the entire sequence of packets,
* sequentially, in a single session. A session corresponds to a single
* packet trace file. The reaons epan_t exists is that some packets in
* some protocols cannot be decoded without knowledge of previous packets.
* This inter-packet "state" is stored in the epan_t.
*/
typedef struct epan_session epan_t;
epan_t*
epan_new(void);
void
epan_free(epan_t*);
/* Dissection of a single byte array. Holds tvbuff info as
* well as proto_tree info. As long as the epan_dissect_t for a byte
* array is in existence, you must not free or move that byte array,
* as the structures that the epan_dissect_t contains might have pointers
* to addresses in your byte array.
*/
typedef struct _epan_dissect_t {
tvbuff_t *tvb;
proto_tree *tree;
packet_info pi;
} epan_dissect_t;
epan_dissect_t*
epan_dissect_new(void* pseudo_header, const guint8* data, frame_data *fd,
gboolean create_proto_tree, column_info *cinfo);
void
epan_dissect_free(epan_dissect_t* edt);
#endif /* EPAN_H */