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/* idfile.h -- decls for ID file header and constituent file names
Copyright (C) 1986, 1995 Greg McGary
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _idfile_h_
#define _idfile_h_ 1
#include <sys/types.h>
#include <stdio.h>
#include "hash.h"
#define IDFILE "ID"
struct idhead
{
unsigned char idh_magic[2];
#define IDH_MAGIC_0 ('I'|0x80)
#define IDH_MAGIC_1 ('D'|0x80)
unsigned char idh_version;
#define IDH_VERSION 3
unsigned short idh_flags;
#define IDH_COUNTS 0x0001 /* include occurrence counts for each token */
#define IDH_FOLLOW_SL 0x0002 /* follow symlinks to directories */
#define IDH_COMMENTS 0x0004 /* include tokens found in comments */
#define IDH_LOCALS 0x0008 /* include names of formal params & local vars */
#define IDH_DECL_DEFN_USE 0x0100 /* include decl/defn/use info */
#define IDH_L_R_VALUE 0x0200 /* include lvalue/rvalue info */
#define IDH_CALL_ER_EE 0x0400 /* include caller/callee relationship info */
unsigned long idh_links; /* total # of file name components */
unsigned long idh_files; /* total # of constituent source files */
unsigned long idh_tokens; /* total # of constituent tokens */
/* idh_*_size: max buffer-sizes for ID file reading programs */
unsigned long idh_buf_size; /* # of bytes in longest entry */
unsigned long idh_vec_size; /* # of hits in longest entry */
unsigned long idh_path_size; /* # of bytes in longest file name path */
/* idh_*_offset: ID file offsets for start of various sections */
long idh_args_offset; /* command-line options section */
long idh_files_offset; /* constituent file & directory names section */
long idh_tokens_offset; /* constituent tokens section */
long idh_end_offset; /* end of tokens section */
/* */
struct hash_table ia_link_table; /* all file and dir name name links */
struct arg_file **ia_file_order; /* sequence in ID file */
struct arg_file **ia_scan_order; /* sequence in summaries */
};
struct file_link
{
struct file_link *fl_parent;
unsigned char fl_flags;
#define FL_IS_ARG 0x01 /* is an explicit command-line argument */
#define FL_SYM_LINK 0x02 /* is a symlink (only used for dirs) */
#define FL_TYPE_MASK 0x10
# define FL_TYPE_DIR 0x00
# define FL_TYPE_FILE 0x10
char fl_name[1];
};
struct arg_file
{
struct file_link *af_name;
short af_old_index; /* order in extant ID file */
short af_new_index; /* order in new ID file */
short af_scan_index; /* order of scanning in summary */
};
#if HAVE_LINK
/* If the system supports filesystem links (e.g., any UN*X variant),
we should detect file name aliases. */
struct dev_ino
{
dev_t di_dev;
ino_t di_ino;
struct file_link *di_file_link;
};
extern struct hash_table dev_ino_table;
#endif
FILE *init_id_file __P((char const *id_file, struct idhead *idh));
int read_idhead __P((FILE *input_FILE, struct idhead *idh));
int write_idhead __P((FILE *input_FILE, struct idhead *idh));
int sizeof_idhead __P((void));
#endif /* not _idfile_h_ */
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