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iso9600_stat now has filename inside it.

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iso9660_fs_readdir now returns a list of iso9660_stat_t's rather than
filenames.

This should reduce by a small amount the number of CD reads since we store
more information in the iso9660_fs_readdir return.

However all of this is in preparation for greatly reducing the number of
CD reads when picking out segment lsn information.
This commit is contained in:
rocky
2003-11-16 19:30:45 +00:00
parent 734ebfdebd
commit ff736f6bae
4 changed files with 154 additions and 116 deletions
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28
include/cdio/iso9660.h
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@@ -1,5 +1,5 @@
/*
$Id: iso9660.h,v 1.30 2003/11/10 04:01:16 rocky Exp $
$Id: iso9660.h,v 1.31 2003/11/16 19:30:45 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>
@@ -194,7 +194,8 @@ typedef struct iso9660_stat iso9660_stat_t;
#endif
/*
* XXX JS: The next structure may have an odd length!
* XXX JS: The next structure may have an odd length depending on how
* many characters there are in the filename!
* Some compilers (e.g. on Sun3/mc68020) padd the structures to even length.
* For this reason, we cannot use sizeof (struct iso_path_table) or
* sizeof (struct iso_directory_record) to compute on disk sizes.
@@ -229,7 +230,8 @@ struct iso9660_stat { /* big endian!! */
uint32_t secsize; /**< number of sectors allocated */
iso9660_xa_t xa; /**< XA attributes */
struct tm tm; /**< time on entry */
} ;
char filename[EMPTY_ARRAY_SIZE]; /**< filename */
} GNUC_PACKED;
PRAGMA_END_PACKED
@@ -367,22 +369,22 @@ iso9660_dir_calc_record_size (unsigned int namelen, unsigned int su_len);
/*!
Given a directory pointer, find the filesystem entry that contains
lsn and return information about it in stat.
lsn and return information about it.
Returns true if we found an entry with the lsn and false if not.
Returns stat_t of entry if we found lsn, or NULL otherwise.
*/
bool iso9660_find_fs_lsn(const CdIo *cdio, lsn_t lsn,
/*out*/ iso9660_stat_t *stat);
iso9660_stat_t *iso9660_find_fs_lsn(const CdIo *cdio, lsn_t lsn);
/*!
Get file status for pathname into stat. As with libc's stat, 0 is returned
if no error and -1 on error.
Get file status for pathname into stat. NULL is returned on error.
*/
int iso9660_fs_stat (const CdIo *obj, const char pathname[],
/*out*/ iso9660_stat_t *stat, bool is_mode2);
iso9660_stat_t *iso9660_fs_stat (const CdIo *obj, const char pathname[],
bool is_mode2);
/*! Read pathname (a directory) and return a list of of the files
inside that (char *). The caller must free the returned result.
/*!
Read pathname (a directory) and return a list of iso9660_stat_t
of the files inside that. The caller must free the returned result.
*/
void * iso9660_fs_readdir (const CdIo *obj, const char pathname[], bool mode2);