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/* idfile.h -- decls for ID file header and constituent file names
Copyright (C) 1986, 1995, 1996, 1999 Free Software Foundation, Inc.
Written by Greg McGary <gkm@gnu.ai.mit.edu>
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; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _idfile_h_
#define _idfile_h_ 1
#include <config.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <stdio.h>
#include "xstring.h"
#include "xobstack.h"
#include "hash.h"
#include "dynvec.h"
#include "tokflags.h"
/****************************************************************************/
/* The ID file header is the nexus of all ID file information. This
is an in-core structure, only some of which is read/written to disk. */
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 4
unsigned short idh_flags;
#define IDH_COUNTS (1<<0) /* include occurrence counts for each token */
#define IDH_FOLLOW_SL (1<<1) /* follow symlinks to directories */
#define IDH_COMMENTS (1<<2) /* include tokens found in comments */
#define IDH_LOCALS (1<<3) /* include names of formal params & local vars */
#define IDH_DECL_DEFN_USE (1<<4) /* include decl/defn/use info */
#define IDH_L_R_VALUE (1<<5) /* include lvalue/rvalue info */
#define IDH_CALL_ER_EE (1<<6) /* include caller/callee relationship info */
unsigned long idh_file_links; /* total # of file links */
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 */
/* idh_*_offset: ID file offsets for start of various sections */
long idh_tokens_offset; /* constituent tokens section */
long idh_flinks_offset; /* constituent file & directory names section */
long idh_end_offset; /* end of tokens section */
unsigned short idh_max_link; /* longest file name component */
unsigned short idh_max_path; /* largest # of file name components */
/* The following are run-time variables and are not stored on disk */
char const *idh_file_name;
struct hash_table idh_member_file_table;
struct hash_table idh_file_link_table;
struct obstack idh_member_file_obstack;
struct obstack idh_file_link_obstack;
#if HAVE_LINK
struct hash_table idh_dev_ino_table; /* for detecting file name aliases */
struct obstack idh_dev_ino_obstack;
#endif
FILE *idh_FILE;
};
/* idhead input/output definitions */
#define IO_TYPE_INT 0 /* integer */
#define IO_TYPE_STR 1 /* NUL terminated string */
#define IO_TYPE_FIX 2 /* fix-sized */
/****************************************************************************/
/* A file_link represents a single component (file or directory) in a
file name. It has a name, a parent file_link and some flags. */
struct file_link
{
union {
struct file_link *u_parent;
#define fl_parent fl_u.u_parent
unsigned long u_index;
#define fl_index fl_u.u_index
#define FL_PARENT_INDEX_BYTES 3
#define IS_ROOT_FILE_LINK(flink) ((flink)->fl_parent == (flink))
} fl_u;
unsigned char fl_flags;
#define FL_CMD_LINE_ARG (1<<0)
#define FL_USED (1<<1)
#define FL_MEMBER (1<<2) /* has a corresponding member_file entry */
#define FL_SCAN_ME (1<<3)
#define FL_SYM_LINK (1<<4)
#define FL_TYPE_MASK (FL_TYPE_DIR|FL_TYPE_FILE)
# define FL_TYPE_DIR (1<<5)
# define FL_IS_DIR(_f_) (((_f_) & FL_TYPE_MASK) == FL_TYPE_DIR)
# define FL_TYPE_FILE (1<<6)
# define FL_IS_FILE(_f_) (((_f_) & FL_TYPE_MASK) == FL_TYPE_FILE)
#define FL_PRUNE (1<<7)
char fl_name[1];
};
/* A member_file represents a source file that is treated by mkid. */
struct member_file
{
struct file_link *mf_link;
struct lang_args const *mf_lang_args;
long mf_index; /* order in ID file */
};
#if HAVE_LINK
/* On systems that support multiple names for a single file (via hard
and/or soft links), dev_ino records information needed to detect
such aliasing. */
struct dev_ino
{
dev_t di_dev;
ino_t di_ino;
struct file_link *di_link;
};
extern struct hash_table dev_ino_table;
#endif /* HAVE_LINK */
/******************************************************************************/
/* token flags (struct token is defined in scanners.h) */
#define token_string(buf) (buf)
extern unsigned int token_flags __P((char const *buf));
extern unsigned short token_count __P((char const *buf));
extern unsigned char const *token_hits_addr __P((char const *buf));
#define MAYBE_RETURN_PREFIX_MATCH(arg, str, val) do { \
char const *_s_ = (str); \
if (strstr (_s_, (arg)) == _s_) \
return (val); \
} while (0)
enum separator_style
{
ss_bogus,
ss_contextual,
ss_braces,
ss_space,
ss_newline
};
#ifndef DEFAULT_SEPARATOR_STYLE
#define DEFAULT_SEPARATOR_STYLE ss_braces
#endif
typedef int (*io_func_t) __P((FILE *, void *, unsigned int, int));
extern struct file_link **read_id_file __P((char const *id_file_name, struct idhead *idhp));
extern struct file_link **maybe_read_id_file __P((char const *id_file_name, struct idhead *idhp));
extern int read_idhead __P((struct idhead *idhp));
extern int write_idhead __P((struct idhead *idhp));
extern int sizeof_idhead __P((void));
struct file_link *init_walker __P((struct idhead *idhp));
extern void init_idh_obstacks __P((struct idhead *idhp));
extern void init_idh_tables __P((struct idhead *idhp));
extern int io_write __P((FILE *output_FILE, void *addr, unsigned int size, int io_type));
extern int io_read __P((FILE *input_FILE, void *addr, unsigned int size, int io_type));
extern int io_idhead __P((FILE *fp, io_func_t iof, struct idhead *idhp));
extern struct file_link *get_current_dir_link __P((void));
extern struct file_link **deserialize_file_links __P((struct idhead *idhp));
extern void serialize_file_links __P((struct idhead *idhp));
extern void mark_member_file_links __P((struct idhead *idhp));
extern int member_file_qsort_compare __P((void const *x, void const *y));
extern struct file_link *parse_file_name __P((char *file_name,
struct file_link *relative_dir_link));
extern void print_filenames __P((struct file_link **flinkv,
enum separator_style separator_style));
extern enum separator_style parse_separator_style __P((char const *arg));
extern void walk_flink __P((struct file_link *flink, struct dynvec *sub_dirs_vec));
extern int chdir_to_link __P((struct file_link* dir_link));
void prune_file_names __P((char *str, struct file_link *from_link));
char **vectorize_string __P((char *string, char const *delimiter_class));
void include_languages __P((char *lang_names));
void exclude_languages __P((char *lang_names));
extern char *absolute_file_name __P((char *buffer, struct file_link const *flink));
extern char *maybe_relative_file_name __P((char *buffer, struct file_link const *to_link,
struct file_link const *from_link));
extern char const *locate_id_file_name __P((char const *arg));
extern int tree8_count_levels __P((unsigned int cardinality));
extern int gets_past_00 __P((char *tok, FILE *input_FILE));
extern int skip_past_00 __P((FILE *input_FILE));
extern int links_depth __P((struct file_link const *flink));
#if HAVE_LINK
extern struct member_file *find_member_file __P((struct file_link const *flink));
#endif
extern struct idhead idh;
extern int walker_verbose_flag;
extern off_t largest_member_file;
#define MAX_LARGEST_MEMBER_FILE (2*1024*1024-1)
#define DEFAULT_ID_FILE_NAME "ID"
#endif /* not _idfile_h_ */
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