1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2005 by Miika Pekkarinen
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
25 * ----------x---------x------------------x-----
27 * +---------------x-------+ | TagCache | Libraries
28 * | Modification routines | | Core |
29 * +-x---------x-----------+ | |
31 * | +------x-------------x-+ +-------------x-----+ |
32 * | | x==x Filters & clauses | |
33 * | | Search routines | +-------------------+ |
34 * | | x============================x DirCache
35 * | +-x--------------------+ | (optional)
37 * | | +-------------------------------+ +---------+ |
38 * | | | DB Commit (sort,unique,index) | | | |
39 * | | +-x--------------------------x--+ | Control | |
40 * | | | (R/W) | (R) | Thread | |
41 * | | | +----------------------+ | | | |
42 * | | | | TagCache DB Builder | | +---------+ |
43 * | | | +-x-------------x------+ | |
44 * | | | | (R) | (W) | |
45 * | | | | +--x--------x---------+ |
46 * | | | | | Temporary Commit DB | |
47 * | | | | +---------------------+ |
48 * +-x----x-------x--+ |
49 * | TagCache RAM DB x==\(W) +-----------------+ |
50 * +-----------------+ \===x | |
51 * | | | | (R) | Ram DB Loader x============x DirCache
52 * +-x----x---x---x---+ /==x | | (optional)
53 * | Tagcache Disk DB x==/ +-----------------+ |
54 * +------------------+ |
58 /*#define LOGF_ENABLE*/
64 #include <unistd.h> /* readlink() */
65 #include <limits.h> /* PATH_MAX */
68 #include "ata_idle_notify.h"
73 #include "string-extra.h"
77 #include "core_alloc.h"
82 #include "filefuncs.h"
88 #include "eeprom_settings.h"
92 #define yield() do { } while(0)
93 #define sim_sleep(timeout) do { } while(0)
94 #define do_timed_yield() do { } while(0)
98 /* Tag Cache thread. */
99 static struct event_queue tagcache_queue SHAREDBSS_ATTR
;
100 static long tagcache_stack
[(DEFAULT_STACK_SIZE
+ 0x4000)/sizeof(long)];
101 static const char tagcache_thread_name
[] = "tagcache";
104 /* Previous path when scanning directory tree recursively. */
105 static char curpath
[TAG_MAXLEN
+32];
107 /* Used when removing duplicates. */
108 static char *tempbuf
; /* Allocated when needed. */
109 static long tempbufidx
; /* Current location in buffer. */
110 static size_t tempbuf_size
; /* Buffer size (TEMPBUF_SIZE). */
111 static long tempbuf_left
; /* Buffer space left. */
112 static long tempbuf_pos
;
114 #define SORTED_TAGS_COUNT 8
115 #define TAGCACHE_IS_UNIQUE(tag) (BIT_N(tag) & TAGCACHE_UNIQUE_TAGS)
116 #define TAGCACHE_IS_SORTED(tag) (BIT_N(tag) & TAGCACHE_SORTED_TAGS)
117 #define TAGCACHE_IS_NUMERIC_OR_NONUNIQUE(tag) \
118 (BIT_N(tag) & (TAGCACHE_NUMERIC_TAGS | ~TAGCACHE_UNIQUE_TAGS))
119 /* Tags we want to get sorted (loaded to the tempbuf). */
120 #define TAGCACHE_SORTED_TAGS ((1LU << tag_artist) | (1LU << tag_album) | \
121 (1LU << tag_genre) | (1LU << tag_composer) | (1LU << tag_comment) | \
122 (1LU << tag_albumartist) | (1LU << tag_grouping) | (1LU << tag_title))
124 /* Uniqued tags (we can use these tags with filters and conditional clauses). */
125 #define TAGCACHE_UNIQUE_TAGS ((1LU << tag_artist) | (1LU << tag_album) | \
126 (1LU << tag_genre) | (1LU << tag_composer) | (1LU << tag_comment) | \
127 (1LU << tag_albumartist) | (1LU << tag_grouping))
129 /* String presentation of the tags defined in tagcache.h. Must be in correct order! */
130 static const char *tags_str
[] = { "artist", "album", "genre", "title",
131 "filename", "composer", "comment", "albumartist", "grouping", "year",
132 "discnumber", "tracknumber", "bitrate", "length", "playcount", "rating",
133 "playtime", "lastplayed", "commitid", "mtime", "lastoffset" };
135 /* Status information of the tagcache. */
136 static struct tagcache_stat tc_stat
;
138 /* Queue commands. */
139 enum tagcache_queue
{
146 /* Internal tagcache command queue. */
147 CMD_UPDATE_MASTER_HEADER
,
151 struct tagcache_command_entry
{
159 static struct tagcache_command_entry command_queue
[TAGCACHE_COMMAND_QUEUE_LENGTH
];
160 static volatile int command_queue_widx
= 0;
161 static volatile int command_queue_ridx
= 0;
162 static struct mutex command_queue_mutex SHAREDBSS_ATTR
;
165 /* Tag database structures. */
167 /* Variable-length tag entry in tag files. */
168 struct tagfile_entry
{
169 int32_t tag_length
; /* Length of the data in bytes including '\0' */
170 int32_t idx_id
; /* Corresponding entry location in index file of not unique tags */
171 char tag_data
[0]; /* Begin of the tag data */
174 /* Fixed-size tag entry in master db index. */
176 int32_t tag_seek
[TAG_COUNT
]; /* Location of tag data or numeric tag data */
177 int32_t flag
; /* Status flags */
180 /* Header is the same in every file. */
181 struct tagcache_header
{
182 int32_t magic
; /* Header version number */
183 int32_t datasize
; /* Data size in bytes */
184 int32_t entry_count
; /* Number of entries in this file */
187 struct master_header
{
188 struct tagcache_header tch
;
189 int32_t serial
; /* Increasing counting number */
190 int32_t commitid
; /* Number of commits so far */
194 /* For the endianess correction */
195 static const char *tagfile_entry_ec
= "ll";
197 Note: This should be (1 + TAG_COUNT) amount of l's.
199 static const char *index_entry_ec
= "llllllllllllllllllllll";
201 static const char *tagcache_header_ec
= "lll";
202 static const char *master_header_ec
= "llllll";
204 static struct master_header current_tcmh
;
206 #ifdef HAVE_TC_RAMCACHE
207 /* Header is created when loading database to ram. */
208 struct ramcache_header
{
209 char *tags
[TAG_COUNT
]; /* Tag file content (not including filename tag) */
210 int entry_count
[TAG_COUNT
]; /* Number of entries in the indices. */
211 struct index_entry indices
[0]; /* Master index file content */
214 # ifdef HAVE_EEPROM_SETTINGS
215 struct statefile_header
{
216 int32_t magic
; /* Statefile version number */
217 struct master_header mh
; /* Header from the master index */
218 struct ramcache_header
*hdr
; /* Old load address of hdr for relocation */
219 struct tagcache_stat tc_stat
;
223 /* Pointer to allocated ramcache_header */
224 static struct ramcache_header
*ramcache_hdr
;
228 * Full tag entries stored in a temporary file waiting
229 * for commit to the cache. */
230 struct temp_file_entry
{
231 long tag_offset
[TAG_COUNT
];
232 short tag_length
[TAG_COUNT
];
238 struct tempbuf_id_list
{
240 struct tempbuf_id_list
*next
;
243 struct tempbuf_searchidx
{
247 struct tempbuf_id_list idlist
;
250 /* Lookup buffer for fixing messed up index while after sorting. */
251 static long commit_entry_count
;
252 static long lookup_buffer_depth
;
253 static struct tempbuf_searchidx
**lookup
;
255 /* Used when building the temporary file. */
256 static int cachefd
= -1, filenametag_fd
;
257 static int total_entry_count
= 0;
258 static int data_size
= 0;
259 static int processed_dir_count
;
261 /* Thread safe locking */
262 static volatile int write_lock
;
263 static volatile int read_lock
;
265 static bool delete_entry(long idx_id
);
267 const char* tagcache_tag_to_str(int tag
)
269 return tags_str
[tag
];
272 /* Helper functions for the two most read/write data structure: tagfile_entry and index_entry */
273 static ssize_t
ecread_tagfile_entry(int fd
, struct tagfile_entry
*buf
)
275 return ecread(fd
, buf
, 1, tagfile_entry_ec
, tc_stat
.econ
);
278 static ssize_t
ecread_index_entry(int fd
, struct index_entry
*buf
)
280 return ecread(fd
, buf
, 1, index_entry_ec
, tc_stat
.econ
);
283 static ssize_t
ecwrite_index_entry(int fd
, struct index_entry
*buf
)
285 return ecwrite(fd
, buf
, 1, index_entry_ec
, tc_stat
.econ
);
290 * Returns true if specified flag is still present, i.e., dircache
291 * has not been reloaded.
293 static bool is_dircache_intact(void)
295 return dircache_get_appflag(DIRCACHE_APPFLAG_TAGCACHE
);
299 static int open_tag_fd(struct tagcache_header
*hdr
, int tag
, bool write
)
305 if (TAGCACHE_IS_NUMERIC(tag
) || tag
< 0 || tag
>= TAG_COUNT
)
308 snprintf(buf
, sizeof buf
, TAGCACHE_FILE_INDEX
, tag
);
310 fd
= open(buf
, write
? O_RDWR
: O_RDONLY
);
313 logf("tag file open failed: tag=%d write=%d file=%s", tag
, write
, buf
);
314 tc_stat
.ready
= false;
318 /* Check the header. */
319 rc
= ecread(fd
, hdr
, 1, tagcache_header_ec
, tc_stat
.econ
);
320 if (hdr
->magic
!= TAGCACHE_MAGIC
|| rc
!= sizeof(struct tagcache_header
))
322 logf("header error");
323 tc_stat
.ready
= false;
331 static int open_master_fd(struct master_header
*hdr
, bool write
)
336 fd
= open(TAGCACHE_FILE_MASTER
, write
? O_RDWR
: O_RDONLY
);
339 logf("master file open failed for R/W");
340 tc_stat
.ready
= false;
344 tc_stat
.econ
= false;
346 /* Check the header. */
347 rc
= read(fd
, hdr
, sizeof(struct master_header
));
348 if (hdr
->tch
.magic
== TAGCACHE_MAGIC
&& rc
== sizeof(struct master_header
))
354 /* Trying to read again, this time with endianess correction enabled. */
355 lseek(fd
, 0, SEEK_SET
);
357 rc
= ecread(fd
, hdr
, 1, master_header_ec
, true);
358 if (hdr
->tch
.magic
!= TAGCACHE_MAGIC
|| rc
!= sizeof(struct master_header
))
360 logf("header error");
361 tc_stat
.ready
= false;
372 static bool do_timed_yield(void)
374 /* Sorting can lock up for quite a while, so yield occasionally */
375 static long wakeup_tick
= 0;
376 if (TIME_AFTER(current_tick
, wakeup_tick
))
378 wakeup_tick
= current_tick
+ (HZ
/4);
386 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
387 /* find the ramcache entry corresponding to the file indicated by
388 * filename and dc (it's corresponding dircache id). */
389 static long find_entry_ram(const char *filename
, int dc
)
391 static long last_pos
= 0;
394 /* Check if tagcache is loaded into ram. */
395 if (!tc_stat
.ramcache
)
399 dc
= dircache_get_entry_id(filename
);
403 logf("tagcache: file not found.");
414 for (; i
< current_tcmh
.tch
.entry_count
; i
++)
416 if (ramcache_hdr
->indices
[i
].tag_seek
[tag_filename
] == dc
)
418 last_pos
= MAX(0, i
- 3);
435 static long find_entry_disk(const char *filename_raw
, bool localfd
)
437 struct tagcache_header tch
;
438 static long last_pos
= -1;
439 long pos_history
[POS_HISTORY_COUNT
];
440 long pos_history_idx
= 0;
442 struct tagfile_entry tfe
;
444 char buf
[TAG_MAXLEN
+32];
448 const char *filename
= filename_raw
;
450 char pathbuf
[PATH_MAX
]; /* Note: Don't use MAX_PATH here, it's too small */
451 if (realpath(filename
, pathbuf
) == pathbuf
)
459 if (fd
< 0 || localfd
)
462 if ( (fd
= open_tag_fd(&tch
, tag_filename
, false)) < 0)
469 lseek(fd
, last_pos
, SEEK_SET
);
471 lseek(fd
, sizeof(struct tagcache_header
), SEEK_SET
);
475 pos
= lseek(fd
, 0, SEEK_CUR
);
476 for (i
= pos_history_idx
-1; i
>= 0; i
--)
477 pos_history
[i
+1] = pos_history
[i
];
478 pos_history
[0] = pos
;
480 if (ecread_tagfile_entry(fd
, &tfe
)
481 != sizeof(struct tagfile_entry
))
486 if (tfe
.tag_length
>= (long)sizeof(buf
))
488 logf("too long tag #1");
496 if (read(fd
, buf
, tfe
.tag_length
) != tfe
.tag_length
)
498 logf("read error #2");
506 if (!strcmp(filename
, buf
))
508 last_pos
= pos_history
[pos_history_idx
];
513 if (pos_history_idx
< POS_HISTORY_COUNT
- 1)
527 if (fd
!= filenametag_fd
|| localfd
)
532 if (fd
!= filenametag_fd
|| localfd
)
538 static int find_index(const char *filename
)
542 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
543 if (tc_stat
.ramcache
&& is_dircache_intact())
544 idx_id
= find_entry_ram(filename
, -1);
548 idx_id
= find_entry_disk(filename
, true);
553 bool tagcache_find_index(struct tagcache_search
*tcs
, const char *filename
)
560 idx_id
= find_index(filename
);
564 if (!tagcache_search(tcs
, tag_filename
))
567 tcs
->entry_count
= 0;
568 tcs
->idx_id
= idx_id
;
573 static bool get_index(int masterfd
, int idxid
,
574 struct index_entry
*idx
, bool use_ram
)
576 bool localfd
= false;
580 logf("Incorrect idxid: %d", idxid
);
584 #ifdef HAVE_TC_RAMCACHE
585 if (tc_stat
.ramcache
&& use_ram
)
587 if (ramcache_hdr
->indices
[idxid
].flag
& FLAG_DELETED
)
590 # ifdef HAVE_DIRCACHE
591 if (!(ramcache_hdr
->indices
[idxid
].flag
& FLAG_DIRCACHE
)
592 || is_dircache_intact())
595 memcpy(idx
, &ramcache_hdr
->indices
[idxid
], sizeof(struct index_entry
));
605 struct master_header tcmh
;
608 masterfd
= open_master_fd(&tcmh
, false);
613 lseek(masterfd
, idxid
* sizeof(struct index_entry
)
614 + sizeof(struct master_header
), SEEK_SET
);
615 if (ecread_index_entry(masterfd
, idx
)
616 != sizeof(struct index_entry
))
618 logf("read error #3");
628 if (idx
->flag
& FLAG_DELETED
)
636 static bool write_index(int masterfd
, int idxid
, struct index_entry
*idx
)
638 /* We need to exclude all memory only flags & tags when writing to disk. */
639 if (idx
->flag
& FLAG_DIRCACHE
)
641 logf("memory only flags!");
645 #ifdef HAVE_TC_RAMCACHE
646 /* Only update numeric data. Writing the whole index to RAM by memcpy
647 * destroys dircache pointers!
649 if (tc_stat
.ramcache
)
652 struct index_entry
*idx_ram
= &ramcache_hdr
->indices
[idxid
];
654 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
656 if (TAGCACHE_IS_NUMERIC(tag
))
658 idx_ram
->tag_seek
[tag
] = idx
->tag_seek
[tag
];
662 /* Don't touch the dircache flag or attributes. */
663 idx_ram
->flag
= (idx
->flag
& 0x0000ffff)
664 | (idx_ram
->flag
& (0xffff0000 | FLAG_DIRCACHE
));
668 lseek(masterfd
, idxid
* sizeof(struct index_entry
)
669 + sizeof(struct master_header
), SEEK_SET
);
670 if (ecwrite_index_entry(masterfd
, idx
) != sizeof(struct index_entry
))
672 logf("write error #3");
673 logf("idxid: %d", idxid
);
680 #endif /* !__PCTOOL__ */
682 static bool open_files(struct tagcache_search
*tcs
, int tag
)
684 if (tcs
->idxfd
[tag
] < 0)
688 snprintf(fn
, sizeof fn
, TAGCACHE_FILE_INDEX
, tag
);
689 tcs
->idxfd
[tag
] = open(fn
, O_RDONLY
);
692 if (tcs
->idxfd
[tag
] < 0)
694 logf("File not open!");
701 static bool retrieve(struct tagcache_search
*tcs
, struct index_entry
*idx
,
702 int tag
, char *buf
, long size
)
704 struct tagfile_entry tfe
;
709 if (TAGCACHE_IS_NUMERIC(tag
))
712 seek
= idx
->tag_seek
[tag
];
715 logf("Retrieve failed");
719 #ifdef HAVE_TC_RAMCACHE
722 struct tagfile_entry
*ep
;
724 # ifdef HAVE_DIRCACHE
725 if (tag
== tag_filename
&& (idx
->flag
& FLAG_DIRCACHE
)
726 && is_dircache_intact())
728 /* for tag_filename, seek is a dircache index */
729 dircache_copy_path(seek
, buf
, size
);
734 if (tag
!= tag_filename
)
736 ep
= (struct tagfile_entry
*)&ramcache_hdr
->tags
[tag
][seek
];
737 strlcpy(buf
, ep
->tag_data
, size
);
744 if (!open_files(tcs
, tag
))
747 lseek(tcs
->idxfd
[tag
], seek
, SEEK_SET
);
748 if (ecread_tagfile_entry(tcs
->idxfd
[tag
], &tfe
)
749 != sizeof(struct tagfile_entry
))
751 logf("read error #5");
755 if (tfe
.tag_length
>= size
)
757 logf("too small buffer");
761 if (read(tcs
->idxfd
[tag
], buf
, tfe
.tag_length
) !=
764 logf("read error #6");
768 buf
[tfe
.tag_length
] = '\0';
773 #define COMMAND_QUEUE_IS_EMPTY (command_queue_ridx == command_queue_widx)
775 static long find_tag(int tag
, int idx_id
, const struct index_entry
*idx
)
778 if (! COMMAND_QUEUE_IS_EMPTY
&& TAGCACHE_IS_NUMERIC(tag
))
780 /* Attempt to find tag data through store-to-load forwarding in
784 mutex_lock(&command_queue_mutex
);
786 int ridx
= command_queue_widx
;
788 while (ridx
!= command_queue_ridx
)
791 ridx
= TAGCACHE_COMMAND_QUEUE_LENGTH
- 1;
793 if (command_queue
[ridx
].command
== CMD_UPDATE_NUMERIC
794 && command_queue
[ridx
].idx_id
== idx_id
795 && command_queue
[ridx
].tag
== tag
)
797 result
= command_queue
[ridx
].data
;
802 mutex_unlock(&command_queue_mutex
);
807 "Recovered tag %d value %lX from write queue",
814 return idx
->tag_seek
[tag
];
818 static long check_virtual_tags(int tag
, int idx_id
,
819 const struct index_entry
*idx
)
825 case tag_virt_length_sec
:
826 data
= (find_tag(tag_length
, idx_id
, idx
)/1000) % 60;
829 case tag_virt_length_min
:
830 data
= (find_tag(tag_length
, idx_id
, idx
)/1000) / 60;
833 case tag_virt_playtime_sec
:
834 data
= (find_tag(tag_playtime
, idx_id
, idx
)/1000) % 60;
837 case tag_virt_playtime_min
:
838 data
= (find_tag(tag_playtime
, idx_id
, idx
)/1000) / 60;
841 case tag_virt_autoscore
:
842 if (find_tag(tag_length
, idx_id
, idx
) == 0
843 || find_tag(tag_playcount
, idx_id
, idx
) == 0)
849 /* A straight calculus gives:
850 autoscore = 100 * playtime / length / playcout (1)
851 Now, consider the euclidian division of playtime by length:
852 playtime = alpha * length + beta
856 autoscore = 100 * (alpha / playcout + beta / length / playcount)
857 Both terms should be small enough to avoid any overflow
859 data
= 100 * (find_tag(tag_playtime
, idx_id
, idx
)
860 / find_tag(tag_length
, idx_id
, idx
))
861 + (100 * (find_tag(tag_playtime
, idx_id
, idx
)
862 % find_tag(tag_length
, idx_id
, idx
)))
863 / find_tag(tag_length
, idx_id
, idx
);
864 data
/= find_tag(tag_playcount
, idx_id
, idx
);
868 /* How many commits before the file has been added to the DB. */
869 case tag_virt_entryage
:
870 data
= current_tcmh
.commitid
871 - find_tag(tag_commitid
, idx_id
, idx
) - 1;
874 case tag_virt_basename
:
875 tag
= tag_filename
; /* return filename; caller handles basename */
879 data
= find_tag(tag
, idx_id
, idx
);
885 long tagcache_get_numeric(const struct tagcache_search
*tcs
, int tag
)
887 struct index_entry idx
;
892 if (!TAGCACHE_IS_NUMERIC(tag
))
895 if (!get_index(tcs
->masterfd
, tcs
->idx_id
, &idx
, true))
898 return check_virtual_tags(tag
, tcs
->idx_id
, &idx
);
901 inline static bool str_ends_with(const char *str1
, const char *str2
)
903 int str_len
= strlen(str1
);
904 int clause_len
= strlen(str2
);
906 if (clause_len
> str_len
)
909 return !strcasecmp(&str1
[str_len
- clause_len
], str2
);
912 inline static bool str_oneof(const char *str
, const char *list
)
915 int l
, len
= strlen(str
);
919 sep
= strchr(list
, '|');
920 l
= sep
? (long)sep
- (long)list
: (int)strlen(list
);
921 if ((l
==len
) && !strncasecmp(str
, list
, len
))
923 list
+= sep
? l
+ 1 : l
;
929 static bool check_against_clause(long numeric
, const char *str
,
930 const struct tagcache_search_clause
*clause
)
934 switch (clause
->type
)
937 return numeric
== clause
->numeric_data
;
939 return numeric
!= clause
->numeric_data
;
941 return numeric
> clause
->numeric_data
;
943 return numeric
>= clause
->numeric_data
;
945 return numeric
< clause
->numeric_data
;
947 return numeric
<= clause
->numeric_data
;
949 logf("Incorrect numeric tag: %d", clause
->type
);
954 switch (clause
->type
)
957 return !strcasecmp(clause
->str
, str
);
959 return strcasecmp(clause
->str
, str
);
961 return 0>strcasecmp(clause
->str
, str
);
963 return 0>=strcasecmp(clause
->str
, str
);
965 return 0<strcasecmp(clause
->str
, str
);
967 return 0<=strcasecmp(clause
->str
, str
);
968 case clause_contains
:
969 return (strcasestr(str
, clause
->str
) != NULL
);
970 case clause_not_contains
:
971 return (strcasestr(str
, clause
->str
) == NULL
);
972 case clause_begins_with
:
973 return (strcasestr(str
, clause
->str
) == str
);
974 case clause_not_begins_with
:
975 return (strcasestr(str
, clause
->str
) != str
);
976 case clause_ends_with
:
977 return str_ends_with(str
, clause
->str
);
978 case clause_not_ends_with
:
979 return !str_ends_with(str
, clause
->str
);
981 return str_oneof(str
, clause
->str
);
984 logf("Incorrect tag: %d", clause
->type
);
991 static bool check_clauses(struct tagcache_search
*tcs
,
992 struct index_entry
*idx
,
993 struct tagcache_search_clause
**clauses
, int count
)
997 /* Go through all conditional clauses. */
998 for (i
= 0; i
< count
; i
++)
1003 struct tagcache_search_clause
*clause
= clauses
[i
];
1005 if (clause
->type
== clause_logical_or
)
1006 break; /* all conditions before logical-or satisfied --
1007 stop processing clauses */
1009 seek
= check_virtual_tags(clause
->tag
, tcs
->idx_id
, idx
);
1011 #ifdef HAVE_TC_RAMCACHE
1014 struct tagfile_entry
*tfe
;
1016 if (!TAGCACHE_IS_NUMERIC(clause
->tag
))
1018 if (clause
->tag
== tag_filename
1019 || clause
->tag
== tag_virt_basename
)
1021 retrieve(tcs
, idx
, tag_filename
, buf
, sizeof buf
);
1025 tfe
= (struct tagfile_entry
*)
1026 &ramcache_hdr
->tags
[clause
->tag
][seek
];
1027 str
= tfe
->tag_data
;
1034 struct tagfile_entry tfe
;
1036 if (!TAGCACHE_IS_NUMERIC(clause
->tag
))
1038 int tag
= clause
->tag
;
1039 if (tag
== tag_virt_basename
)
1042 int fd
= tcs
->idxfd
[tag
];
1043 lseek(fd
, seek
, SEEK_SET
);
1044 ecread_tagfile_entry(fd
, &tfe
);
1045 if (tfe
.tag_length
>= (int)sizeof(buf
))
1047 logf("Too long tag read!");
1051 read(fd
, str
, tfe
.tag_length
);
1052 str
[tfe
.tag_length
] = '\0';
1054 /* Check if entry has been deleted. */
1060 if (clause
->tag
== tag_virt_basename
)
1062 char *basename
= strrchr(str
, '/');
1067 if (!check_against_clause(seek
, str
, clause
))
1069 /* Clause failed -- try finding a logical-or clause */
1072 if (clauses
[i
]->type
== clause_logical_or
)
1076 if (i
< count
) /* Found logical-or? */
1077 continue; /* Check clauses after logical-or */
1086 bool tagcache_check_clauses(struct tagcache_search
*tcs
,
1087 struct tagcache_search_clause
**clause
, int count
)
1089 struct index_entry idx
;
1094 if (!get_index(tcs
->masterfd
, tcs
->idx_id
, &idx
, true))
1097 return check_clauses(tcs
, &idx
, clause
, count
);
1100 static bool add_uniqbuf(struct tagcache_search
*tcs
, unsigned long id
)
1104 /* If uniq buffer is not defined we must return true for search to work. */
1105 if (tcs
->unique_list
== NULL
|| (!TAGCACHE_IS_UNIQUE(tcs
->type
)
1106 && !TAGCACHE_IS_NUMERIC(tcs
->type
)))
1111 for (i
= 0; i
< tcs
->unique_list_count
; i
++)
1113 /* Return false if entry is found. */
1114 if (tcs
->unique_list
[i
] == id
)
1118 if (tcs
->unique_list_count
< tcs
->unique_list_capacity
)
1120 tcs
->unique_list
[i
] = id
;
1121 tcs
->unique_list_count
++;
1127 static bool build_lookup_list(struct tagcache_search
*tcs
)
1129 struct index_entry entry
;
1132 tcs
->seek_list_count
= 0;
1134 #ifdef HAVE_TC_RAMCACHE
1136 # ifdef HAVE_DIRCACHE
1137 && (tcs
->type
!= tag_filename
|| is_dircache_intact())
1141 for (i
= tcs
->seek_pos
; i
< current_tcmh
.tch
.entry_count
; i
++)
1143 struct tagcache_seeklist_entry
*seeklist
;
1144 struct index_entry
*idx
= &ramcache_hdr
->indices
[i
];
1145 if (tcs
->seek_list_count
== SEEK_LIST_SIZE
)
1148 /* Skip deleted files. */
1149 if (idx
->flag
& FLAG_DELETED
)
1152 /* Go through all filters.. */
1153 for (j
= 0; j
< tcs
->filter_count
; j
++)
1155 if (idx
->tag_seek
[tcs
->filter_tag
[j
]] != tcs
->filter_seek
[j
])
1161 if (j
< tcs
->filter_count
)
1164 /* Check for conditions. */
1165 if (!check_clauses(tcs
, idx
, tcs
->clause
, tcs
->clause_count
))
1168 /* Add to the seek list if not already in uniq buffer. */
1169 if (!add_uniqbuf(tcs
, idx
->tag_seek
[tcs
->type
]))
1173 seeklist
= &tcs
->seeklist
[tcs
->seek_list_count
];
1174 seeklist
->seek
= idx
->tag_seek
[tcs
->type
];
1175 seeklist
->flag
= idx
->flag
;
1176 seeklist
->idx_id
= i
;
1177 tcs
->seek_list_count
++;
1182 return tcs
->seek_list_count
> 0;
1186 if (tcs
->masterfd
< 0)
1188 struct master_header tcmh
;
1189 tcs
->masterfd
= open_master_fd(&tcmh
, false);
1192 lseek(tcs
->masterfd
, tcs
->seek_pos
* sizeof(struct index_entry
) +
1193 sizeof(struct master_header
), SEEK_SET
);
1195 while (ecread_index_entry(tcs
->masterfd
, &entry
)
1196 == sizeof(struct index_entry
))
1198 struct tagcache_seeklist_entry
*seeklist
;
1200 if (tcs
->seek_list_count
== SEEK_LIST_SIZE
)
1206 /* Check if entry has been deleted. */
1207 if (entry
.flag
& FLAG_DELETED
)
1210 /* Go through all filters.. */
1211 for (j
= 0; j
< tcs
->filter_count
; j
++)
1213 if (entry
.tag_seek
[tcs
->filter_tag
[j
]] != tcs
->filter_seek
[j
])
1217 if (j
< tcs
->filter_count
)
1220 /* Check for conditions. */
1221 if (!check_clauses(tcs
, &entry
, tcs
->clause
, tcs
->clause_count
))
1224 /* Add to the seek list if not already in uniq buffer. */
1225 if (!add_uniqbuf(tcs
, entry
.tag_seek
[tcs
->type
]))
1229 seeklist
= &tcs
->seeklist
[tcs
->seek_list_count
];
1230 seeklist
->seek
= entry
.tag_seek
[tcs
->type
];
1231 seeklist
->flag
= entry
.flag
;
1232 seeklist
->idx_id
= i
;
1233 tcs
->seek_list_count
++;
1238 return tcs
->seek_list_count
> 0;
1242 static void remove_files(void)
1247 tc_stat
.ready
= false;
1248 tc_stat
.ramcache
= false;
1249 tc_stat
.econ
= false;
1250 remove(TAGCACHE_FILE_MASTER
);
1251 for (i
= 0; i
< TAG_COUNT
; i
++)
1253 if (TAGCACHE_IS_NUMERIC(i
))
1256 snprintf(buf
, sizeof buf
, TAGCACHE_FILE_INDEX
, i
);
1262 static bool check_all_headers(void)
1264 struct master_header myhdr
;
1265 struct tagcache_header tch
;
1269 if ( (fd
= open_master_fd(&myhdr
, false)) < 0)
1275 logf("tagcache is dirty!");
1279 memcpy(¤t_tcmh
, &myhdr
, sizeof(struct master_header
));
1281 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
1283 if (TAGCACHE_IS_NUMERIC(tag
))
1286 if ( (fd
= open_tag_fd(&tch
, tag
, false)) < 0)
1295 bool tagcache_is_busy(void)
1297 return read_lock
|| write_lock
;
1300 bool tagcache_search(struct tagcache_search
*tcs
, int tag
)
1302 struct tagcache_header tag_hdr
;
1303 struct master_header master_hdr
;
1309 memset(tcs
, 0, sizeof(struct tagcache_search
));
1310 if (tc_stat
.commit_step
> 0 || !tc_stat
.ready
)
1313 tcs
->position
= sizeof(struct tagcache_header
);
1316 tcs
->list_position
= 0;
1317 tcs
->seek_list_count
= 0;
1318 tcs
->filter_count
= 0;
1321 for (i
= 0; i
< TAG_COUNT
; i
++)
1324 #ifndef HAVE_TC_RAMCACHE
1325 tcs
->ramsearch
= false;
1327 tcs
->ramsearch
= tc_stat
.ramcache
;
1330 tcs
->entry_count
= ramcache_hdr
->entry_count
[tcs
->type
];
1335 /* Always open as R/W so we can pass tcs to functions that modify data also
1336 * without failing. */
1337 tcs
->masterfd
= open_master_fd(&master_hdr
, true);
1338 if (tcs
->masterfd
< 0)
1341 if (!TAGCACHE_IS_NUMERIC(tcs
->type
))
1343 tcs
->idxfd
[tcs
->type
] = open_tag_fd(&tag_hdr
, tcs
->type
, false);
1344 if (tcs
->idxfd
[tcs
->type
] < 0)
1347 tcs
->entry_count
= tag_hdr
.entry_count
;
1351 tcs
->entry_count
= master_hdr
.tch
.entry_count
;
1356 tcs
->initialized
= true;
1362 void tagcache_search_set_uniqbuf(struct tagcache_search
*tcs
,
1363 void *buffer
, long length
)
1365 tcs
->unique_list
= (unsigned long *)buffer
;
1366 tcs
->unique_list_capacity
= length
/ sizeof(*tcs
->unique_list
);
1367 tcs
->unique_list_count
= 0;
1370 bool tagcache_search_add_filter(struct tagcache_search
*tcs
,
1373 if (tcs
->filter_count
== TAGCACHE_MAX_FILTERS
)
1376 if (TAGCACHE_IS_NUMERIC_OR_NONUNIQUE(tag
))
1379 tcs
->filter_tag
[tcs
->filter_count
] = tag
;
1380 tcs
->filter_seek
[tcs
->filter_count
] = seek
;
1381 tcs
->filter_count
++;
1386 bool tagcache_search_add_clause(struct tagcache_search
*tcs
,
1387 struct tagcache_search_clause
*clause
)
1391 if (tcs
->clause_count
>= TAGCACHE_MAX_CLAUSES
)
1393 logf("Too many clauses");
1397 if (clause
->type
!= clause_logical_or
)
1399 /* Check if there is already a similar filter in present (filters are
1400 * much faster than clauses).
1402 for (i
= 0; i
< tcs
->filter_count
; i
++)
1404 if (tcs
->filter_tag
[i
] == clause
->tag
)
1408 if (!TAGCACHE_IS_NUMERIC(clause
->tag
) && tcs
->idxfd
[clause
->tag
] < 0)
1412 snprintf(buf
, sizeof buf
, TAGCACHE_FILE_INDEX
, clause
->tag
);
1413 tcs
->idxfd
[clause
->tag
] = open(buf
, O_RDONLY
);
1417 tcs
->clause
[tcs
->clause_count
] = clause
;
1418 tcs
->clause_count
++;
1423 static bool get_next(struct tagcache_search
*tcs
)
1425 static char buf
[TAG_MAXLEN
+32];
1426 struct tagfile_entry entry
;
1427 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1431 if (!tcs
->valid
|| !tc_stat
.ready
)
1434 if (tcs
->idxfd
[tcs
->type
] < 0 && !TAGCACHE_IS_NUMERIC(tcs
->type
)
1435 #ifdef HAVE_TC_RAMCACHE
1441 /* Relative fetch. */
1442 if (tcs
->filter_count
> 0 || tcs
->clause_count
> 0
1443 || TAGCACHE_IS_NUMERIC(tcs
->type
)
1444 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1445 /* We need to retrieve flag status for dircache. */
1446 || (tcs
->ramsearch
&& tcs
->type
== tag_filename
)
1450 struct tagcache_seeklist_entry
*seeklist
;
1452 /* Check for end of list. */
1453 if (tcs
->list_position
== tcs
->seek_list_count
)
1455 tcs
->list_position
= 0;
1457 /* Try to fetch more. */
1458 if (!build_lookup_list(tcs
))
1465 seeklist
= &tcs
->seeklist
[tcs
->list_position
];
1466 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1467 flag
= seeklist
->flag
;
1469 tcs
->position
= seeklist
->seek
;
1470 tcs
->idx_id
= seeklist
->idx_id
;
1471 tcs
->list_position
++;
1475 if (tcs
->entry_count
== 0)
1484 tcs
->result_seek
= tcs
->position
;
1486 if (TAGCACHE_IS_NUMERIC(tcs
->type
))
1488 snprintf(buf
, sizeof(buf
), "%ld", tcs
->position
);
1490 tcs
->result_len
= strlen(buf
) + 1;
1495 #ifdef HAVE_TC_RAMCACHE
1499 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1500 if (tcs
->type
== tag_filename
&& (flag
& FLAG_DIRCACHE
)
1501 && is_dircache_intact())
1503 size_t len
= dircache_copy_path(tcs
->position
, buf
, sizeof buf
);
1504 tcs
->result_len
= len
+ 1;
1506 tcs
->ramresult
= false;
1512 if (tcs
->type
!= tag_filename
)
1514 struct tagfile_entry
*ep
;
1516 ep
= (struct tagfile_entry
*)&ramcache_hdr
->tags
[tcs
->type
][tcs
->position
];
1517 tcs
->result
= ep
->tag_data
;
1518 tcs
->result_len
= strlen(tcs
->result
) + 1;
1519 tcs
->idx_id
= ep
->idx_id
;
1520 tcs
->ramresult
= true;
1522 /* Increase position for the next run. This may get overwritten. */
1523 tcs
->position
+= sizeof(struct tagfile_entry
) + ep
->tag_length
;
1530 if (!open_files(tcs
, tcs
->type
))
1536 /* Seek stream to the correct position and continue to direct fetch. */
1537 lseek(tcs
->idxfd
[tcs
->type
], tcs
->position
, SEEK_SET
);
1539 if (ecread_tagfile_entry(tcs
->idxfd
[tcs
->type
], &entry
) != sizeof(struct tagfile_entry
))
1541 logf("read error #5");
1546 if (entry
.tag_length
> (long)sizeof(buf
))
1549 logf("too long tag #2");
1550 logf("P:%lX/%lX", tcs
->position
, entry
.tag_length
);
1554 if (read(tcs
->idxfd
[tcs
->type
], buf
, entry
.tag_length
) != entry
.tag_length
)
1557 logf("read error #4");
1562 Update the position for the next read (this may be overridden
1563 if filters or clauses are being used).
1565 tcs
->position
+= sizeof(struct tagfile_entry
) + entry
.tag_length
;
1567 tcs
->result_len
= strlen(tcs
->result
) + 1;
1568 tcs
->idx_id
= entry
.idx_id
;
1569 tcs
->ramresult
= false;
1574 bool tagcache_get_next(struct tagcache_search
*tcs
)
1576 while (get_next(tcs
))
1578 if (tcs
->result_len
> 1)
1585 bool tagcache_retrieve(struct tagcache_search
*tcs
, int idxid
,
1586 int tag
, char *buf
, long size
)
1588 struct index_entry idx
;
1591 if (!get_index(tcs
->masterfd
, idxid
, &idx
, true))
1594 return retrieve(tcs
, &idx
, tag
, buf
, size
);
1597 static bool update_master_header(void)
1599 struct master_header myhdr
;
1605 if ( (fd
= open_master_fd(&myhdr
, true)) < 0)
1608 myhdr
.serial
= current_tcmh
.serial
;
1609 myhdr
.commitid
= current_tcmh
.commitid
;
1610 myhdr
.dirty
= current_tcmh
.dirty
;
1613 lseek(fd
, 0, SEEK_SET
);
1614 ecwrite(fd
, &myhdr
, 1, master_header_ec
, tc_stat
.econ
);
1620 void tagcache_search_finish(struct tagcache_search
*tcs
)
1624 if (!tcs
->initialized
)
1627 if (tcs
->masterfd
>= 0)
1629 close(tcs
->masterfd
);
1633 for (i
= 0; i
< TAG_COUNT
; i
++)
1635 if (tcs
->idxfd
[i
] >= 0)
1637 close(tcs
->idxfd
[i
]);
1642 tcs
->ramsearch
= false;
1644 tcs
->initialized
= 0;
1649 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1650 static struct tagfile_entry
*get_tag(const struct index_entry
*entry
, int tag
)
1652 return (struct tagfile_entry
*)&ramcache_hdr
->tags
[tag
][entry
->tag_seek
[tag
]];
1655 static long get_tag_numeric(const struct index_entry
*entry
, int tag
, int idx_id
)
1657 return check_virtual_tags(tag
, idx_id
, entry
);
1660 static char* get_tag_string(const struct index_entry
*entry
, int tag
)
1662 char* s
= get_tag(entry
, tag
)->tag_data
;
1663 return strcmp(s
, UNTAGGED
) ? s
: NULL
;
1666 bool tagcache_fill_tags(struct mp3entry
*id3
, const char *filename
)
1668 struct index_entry
*entry
;
1671 if (!tc_stat
.ready
|| !tc_stat
.ramcache
)
1674 /* Find the corresponding entry in tagcache. */
1675 idx_id
= find_entry_ram(filename
, -1);
1679 entry
= &ramcache_hdr
->indices
[idx_id
];
1681 memset(id3
, 0, sizeof(struct mp3entry
));
1683 id3
->title
= get_tag_string(entry
, tag_title
);
1684 id3
->artist
= get_tag_string(entry
, tag_artist
);
1685 id3
->album
= get_tag_string(entry
, tag_album
);
1686 id3
->genre_string
= get_tag_string(entry
, tag_genre
);
1687 id3
->composer
= get_tag_string(entry
, tag_composer
);
1688 id3
->comment
= get_tag_string(entry
, tag_comment
);
1689 id3
->albumartist
= get_tag_string(entry
, tag_albumartist
);
1690 id3
->grouping
= get_tag_string(entry
, tag_grouping
);
1692 id3
->length
= get_tag_numeric(entry
, tag_length
, idx_id
);
1693 id3
->playcount
= get_tag_numeric(entry
, tag_playcount
, idx_id
);
1694 id3
->rating
= get_tag_numeric(entry
, tag_rating
, idx_id
);
1695 id3
->lastplayed
= get_tag_numeric(entry
, tag_lastplayed
, idx_id
);
1696 id3
->score
= get_tag_numeric(entry
, tag_virt_autoscore
, idx_id
) / 10;
1697 id3
->year
= get_tag_numeric(entry
, tag_year
, idx_id
);
1699 id3
->discnum
= get_tag_numeric(entry
, tag_discnumber
, idx_id
);
1700 id3
->tracknum
= get_tag_numeric(entry
, tag_tracknumber
, idx_id
);
1701 id3
->bitrate
= get_tag_numeric(entry
, tag_bitrate
, idx_id
);
1702 if (id3
->bitrate
== 0)
1705 #if CONFIG_CODEC == SWCODEC
1706 if (global_settings
.autoresume_enable
)
1708 id3
->offset
= get_tag_numeric(entry
, tag_lastoffset
, idx_id
);
1709 logf("tagcache_fill_tags: Set offset for %s to %lX\n",
1710 id3
->title
, id3
->offset
);
1718 static inline void write_item(const char *item
)
1720 int len
= strlen(item
) + 1;
1723 write(cachefd
, item
, len
);
1726 static int check_if_empty(char **tag
)
1730 if (*tag
== NULL
|| **tag
== '\0')
1733 return sizeof(UNTAGGED
); /* Tag length */
1736 length
= strlen(*tag
);
1737 if (length
> TAG_MAXLEN
)
1739 logf("over length tag: %s", *tag
);
1740 length
= TAG_MAXLEN
;
1741 (*tag
)[length
] = '\0';
1747 #define ADD_TAG(entry,tag,data) \
1749 entry.tag_offset[tag] = offset; \
1750 entry.tag_length[tag] = check_if_empty(data); \
1751 offset += entry.tag_length[tag]
1752 /* GCC 3.4.6 for Coldfire can choose to inline this function. Not a good
1753 * idea, as it uses lots of stack and is called from a recursive function
1756 static void __attribute__ ((noinline
)) add_tagcache(char *path
,
1758 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1763 struct mp3entry id3
;
1764 struct temp_file_entry entry
;
1768 char tracknumfix
[3];
1770 int path_length
= strlen(path
);
1771 bool has_albumartist
;
1775 /* Crude logging for the sim - to aid in debugging */
1776 int logfd
= open(ROCKBOX_DIR
"/database.log",
1777 O_WRONLY
| O_APPEND
| O_CREAT
, 0666);
1779 write(logfd
, path
, strlen(path
));
1780 write(logfd
, "\n", 1);
1788 /* Check for overlength file path. */
1789 if (path_length
> TAG_MAXLEN
)
1791 /* Path can't be shortened. */
1792 logf("Too long path: %s", path
);
1796 /* Check if the file is supported. */
1797 if (probe_file_format(path
) == AFMT_UNKNOWN
)
1800 /* Check if the file is already cached. */
1801 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
1802 if (tc_stat
.ramcache
&& is_dircache_intact())
1804 idx_id
= find_entry_ram(path
, dc
);
1808 /* Be sure the entry doesn't exist. */
1809 if (filenametag_fd
>= 0 && idx_id
< 0)
1810 idx_id
= find_entry_disk(path
, false);
1812 /* Check if file has been modified. */
1815 struct index_entry idx
;
1817 /* TODO: Mark that the index exists (for fast reverse scan) */
1818 //found_idx[idx_id/8] |= idx_id%8;
1820 if (!get_index(-1, idx_id
, &idx
, true))
1822 logf("failed to retrieve index entry");
1826 if ((unsigned long)idx
.tag_seek
[tag_mtime
] == mtime
)
1828 /* No changes to file. */
1832 /* Metadata might have been changed. Delete the entry. */
1833 logf("Re-adding: %s", path
);
1834 if (!delete_entry(idx_id
))
1836 logf("delete_entry failed: %d", idx_id
);
1841 fd
= open(path
, O_RDONLY
);
1844 logf("open fail: %s", path
);
1848 memset(&id3
, 0, sizeof(struct mp3entry
));
1849 memset(&entry
, 0, sizeof(struct temp_file_entry
));
1850 memset(&tracknumfix
, 0, sizeof(tracknumfix
));
1851 ret
= get_metadata(&id3
, fd
, path
);
1857 logf("-> %s", path
);
1859 if (id3
.tracknum
<= 0) /* Track number missing? */
1865 entry
.tag_offset
[tag_year
] = id3
.year
;
1866 entry
.tag_offset
[tag_discnumber
] = id3
.discnum
;
1867 entry
.tag_offset
[tag_tracknumber
] = id3
.tracknum
;
1868 entry
.tag_offset
[tag_length
] = id3
.length
;
1869 entry
.tag_offset
[tag_bitrate
] = id3
.bitrate
;
1870 entry
.tag_offset
[tag_mtime
] = mtime
;
1873 has_albumartist
= id3
.albumartist
!= NULL
1874 && strlen(id3
.albumartist
) > 0;
1875 has_grouping
= id3
.grouping
!= NULL
1876 && strlen(id3
.grouping
) > 0;
1878 ADD_TAG(entry
, tag_filename
, &path
);
1879 ADD_TAG(entry
, tag_title
, &id3
.title
);
1880 ADD_TAG(entry
, tag_artist
, &id3
.artist
);
1881 ADD_TAG(entry
, tag_album
, &id3
.album
);
1882 ADD_TAG(entry
, tag_genre
, &id3
.genre_string
);
1883 ADD_TAG(entry
, tag_composer
, &id3
.composer
);
1884 ADD_TAG(entry
, tag_comment
, &id3
.comment
);
1885 if (has_albumartist
)
1887 ADD_TAG(entry
, tag_albumartist
, &id3
.albumartist
);
1891 ADD_TAG(entry
, tag_albumartist
, &id3
.artist
);
1895 ADD_TAG(entry
, tag_grouping
, &id3
.grouping
);
1899 ADD_TAG(entry
, tag_grouping
, &id3
.title
);
1901 entry
.data_length
= offset
;
1903 /* Write the header */
1904 write(cachefd
, &entry
, sizeof(struct temp_file_entry
));
1906 /* And tags also... Correct order is critical */
1908 write_item(id3
.title
);
1909 write_item(id3
.artist
);
1910 write_item(id3
.album
);
1911 write_item(id3
.genre_string
);
1912 write_item(id3
.composer
);
1913 write_item(id3
.comment
);
1914 if (has_albumartist
)
1916 write_item(id3
.albumartist
);
1920 write_item(id3
.artist
);
1924 write_item(id3
.grouping
);
1928 write_item(id3
.title
);
1930 total_entry_count
++;
1933 static bool tempbuf_insert(char *str
, int id
, int idx_id
, bool unique
)
1935 struct tempbuf_searchidx
*index
= (struct tempbuf_searchidx
*)tempbuf
;
1936 int len
= strlen(str
)+1;
1939 unsigned *crcbuf
= (unsigned *)&tempbuf
[tempbuf_size
-4];
1940 char buf
[TAG_MAXLEN
+32];
1942 for (i
= 0; str
[i
] != '\0' && i
< (int)sizeof(buf
)-1; i
++)
1943 buf
[i
] = tolower(str
[i
]);
1946 crc32
= crc_32(buf
, i
, 0xffffffff);
1950 /* Check if the crc does not exist -> entry does not exist for sure. */
1951 for (i
= 0; i
< tempbufidx
; i
++)
1953 if (crcbuf
[-i
] != crc32
)
1956 if (!strcasecmp(str
, index
[i
].str
))
1958 if (id
< 0 || id
>= lookup_buffer_depth
)
1960 logf("lookup buf overf.: %d", id
);
1964 lookup
[id
] = &index
[i
];
1970 /* Insert to CRC buffer. */
1971 crcbuf
[-tempbufidx
] = crc32
;
1974 /* Insert it to the buffer. */
1975 tempbuf_left
-= len
;
1976 if (tempbuf_left
- 4 < 0 || tempbufidx
>= commit_entry_count
-1)
1979 if (id
>= lookup_buffer_depth
)
1981 logf("lookup buf overf. #2: %d", id
);
1987 lookup
[id
] = &index
[tempbufidx
];
1988 index
[tempbufidx
].idlist
.id
= id
;
1991 index
[tempbufidx
].idlist
.id
= -1;
1993 index
[tempbufidx
].idlist
.next
= NULL
;
1994 index
[tempbufidx
].idx_id
= idx_id
;
1995 index
[tempbufidx
].seek
= -1;
1996 index
[tempbufidx
].str
= &tempbuf
[tempbuf_pos
];
1997 memcpy(index
[tempbufidx
].str
, str
, len
);
2004 static int compare(const void *p1
, const void *p2
)
2008 struct tempbuf_searchidx
*e1
= (struct tempbuf_searchidx
*)p1
;
2009 struct tempbuf_searchidx
*e2
= (struct tempbuf_searchidx
*)p2
;
2011 if (strcmp(e1
->str
, UNTAGGED
) == 0)
2013 if (strcmp(e2
->str
, UNTAGGED
) == 0)
2017 else if (strcmp(e2
->str
, UNTAGGED
) == 0)
2020 return strncasecmp(e1
->str
, e2
->str
, TAG_MAXLEN
);
2023 static int tempbuf_sort(int fd
)
2025 struct tempbuf_searchidx
*index
= (struct tempbuf_searchidx
*)tempbuf
;
2026 struct tagfile_entry fe
;
2030 /* Generate reverse lookup entries. */
2031 for (i
= 0; i
< lookup_buffer_depth
; i
++)
2033 struct tempbuf_id_list
*idlist
;
2038 if (lookup
[i
]->idlist
.id
== i
)
2041 idlist
= &lookup
[i
]->idlist
;
2042 while (idlist
->next
!= NULL
)
2043 idlist
= idlist
->next
;
2045 tempbuf_left
-= sizeof(struct tempbuf_id_list
);
2046 if (tempbuf_left
- 4 < 0)
2049 idlist
->next
= (struct tempbuf_id_list
*)&tempbuf
[tempbuf_pos
];
2050 if (tempbuf_pos
& 0x03)
2052 tempbuf_pos
= (tempbuf_pos
& ~0x03) + 0x04;
2054 idlist
->next
= (struct tempbuf_id_list
*)&tempbuf
[tempbuf_pos
];
2056 tempbuf_pos
+= sizeof(struct tempbuf_id_list
);
2058 idlist
= idlist
->next
;
2060 idlist
->next
= NULL
;
2065 qsort(index
, tempbufidx
, sizeof(struct tempbuf_searchidx
), compare
);
2066 memset(lookup
, 0, lookup_buffer_depth
* sizeof(struct tempbuf_searchidx
**));
2068 for (i
= 0; i
< tempbufidx
; i
++)
2070 struct tempbuf_id_list
*idlist
= &index
[i
].idlist
;
2072 /* Fix the lookup list. */
2073 while (idlist
!= NULL
)
2075 if (idlist
->id
>= 0)
2076 lookup
[idlist
->id
] = &index
[i
];
2077 idlist
= idlist
->next
;
2080 index
[i
].seek
= lseek(fd
, 0, SEEK_CUR
);
2081 length
= strlen(index
[i
].str
) + 1;
2082 fe
.tag_length
= length
;
2083 fe
.idx_id
= index
[i
].idx_id
;
2085 /* Check the chunk alignment. */
2086 if ((fe
.tag_length
+ sizeof(struct tagfile_entry
))
2087 % TAGFILE_ENTRY_CHUNK_LENGTH
)
2089 fe
.tag_length
+= TAGFILE_ENTRY_CHUNK_LENGTH
-
2090 ((fe
.tag_length
+ sizeof(struct tagfile_entry
))
2091 % TAGFILE_ENTRY_CHUNK_LENGTH
);
2094 #ifdef TAGCACHE_STRICT_ALIGN
2095 /* Make sure the entry is long aligned. */
2096 if (index
[i
].seek
& 0x03)
2098 logf("tempbuf_sort: alignment error!");
2103 if (ecwrite(fd
, &fe
, 1, tagfile_entry_ec
, tc_stat
.econ
) !=
2104 sizeof(struct tagfile_entry
))
2106 logf("tempbuf_sort: write error #1");
2110 if (write(fd
, index
[i
].str
, length
) != length
)
2112 logf("tempbuf_sort: write error #2");
2116 /* Write some padding. */
2117 if (fe
.tag_length
- length
> 0)
2118 write(fd
, "XXXXXXXX", fe
.tag_length
- length
);
2124 inline static struct tempbuf_searchidx
* tempbuf_locate(int id
)
2126 if (id
< 0 || id
>= lookup_buffer_depth
)
2133 inline static int tempbuf_find_location(int id
)
2135 struct tempbuf_searchidx
*entry
;
2137 entry
= tempbuf_locate(id
);
2144 static bool build_numeric_indices(struct tagcache_header
*h
, int tmpfd
)
2146 struct master_header tcmh
;
2147 struct index_entry idx
;
2150 struct temp_file_entry
*entrybuf
= (struct temp_file_entry
*)tempbuf
;
2152 int entries_processed
= 0;
2154 char buf
[TAG_MAXLEN
];
2156 max_entries
= tempbuf_size
/ sizeof(struct temp_file_entry
) - 1;
2158 logf("Building numeric indices...");
2159 lseek(tmpfd
, sizeof(struct tagcache_header
), SEEK_SET
);
2161 if ( (masterfd
= open_master_fd(&tcmh
, true)) < 0)
2164 masterfd_pos
= lseek(masterfd
, tcmh
.tch
.entry_count
* sizeof(struct index_entry
),
2166 if (masterfd_pos
== filesize(masterfd
))
2168 logf("we can't append!");
2173 while (entries_processed
< h
->entry_count
)
2175 int count
= MIN(h
->entry_count
- entries_processed
, max_entries
);
2177 /* Read in as many entries as possible. */
2178 for (i
= 0; i
< count
; i
++)
2180 struct temp_file_entry
*tfe
= &entrybuf
[i
];
2183 /* Read in numeric data. */
2184 if (read(tmpfd
, tfe
, sizeof(struct temp_file_entry
)) !=
2185 sizeof(struct temp_file_entry
))
2187 logf("read fail #1");
2192 datastart
= lseek(tmpfd
, 0, SEEK_CUR
);
2195 * Read string data from the following tags:
2201 * A crc32 hash is calculated from the read data
2202 * and stored back to the data offset field kept in memory.
2204 #define tmpdb_read_string_tag(tag) \
2205 lseek(tmpfd, tfe->tag_offset[tag], SEEK_CUR); \
2206 if ((unsigned long)tfe->tag_length[tag] > sizeof buf) \
2208 logf("read fail: buffer overflow"); \
2213 if (read(tmpfd, buf, tfe->tag_length[tag]) != \
2214 tfe->tag_length[tag]) \
2216 logf("read fail #2"); \
2221 tfe->tag_offset[tag] = crc_32(buf, strlen(buf), 0xffffffff); \
2222 lseek(tmpfd, datastart, SEEK_SET)
2224 tmpdb_read_string_tag(tag_filename
);
2225 tmpdb_read_string_tag(tag_artist
);
2226 tmpdb_read_string_tag(tag_album
);
2227 tmpdb_read_string_tag(tag_title
);
2229 /* Seek to the end of the string data. */
2230 lseek(tmpfd
, tfe
->data_length
, SEEK_CUR
);
2233 /* Backup the master index position. */
2234 masterfd_pos
= lseek(masterfd
, 0, SEEK_CUR
);
2235 lseek(masterfd
, sizeof(struct master_header
), SEEK_SET
);
2237 /* Check if we can resurrect some deleted runtime statistics data. */
2238 for (i
= 0; i
< tcmh
.tch
.entry_count
; i
++)
2240 /* Read the index entry. */
2241 if (ecread_index_entry(masterfd
, &idx
)
2242 != sizeof(struct index_entry
))
2244 logf("read fail #3");
2250 * Skip unless the entry is marked as being deleted
2251 * or the data has already been resurrected.
2253 if (!(idx
.flag
& FLAG_DELETED
) || idx
.flag
& FLAG_RESURRECTED
)
2256 /* Now try to match the entry. */
2258 * To succesfully match a song, the following conditions
2261 * For numeric fields: tag_length
2262 * - Full identical match is required
2264 * If tag_filename matches, no further checking necessary.
2266 * For string hashes: tag_artist, tag_album, tag_title
2267 * - All three of these must match
2269 for (j
= 0; j
< count
; j
++)
2271 struct temp_file_entry
*tfe
= &entrybuf
[j
];
2273 /* Try to match numeric fields first. */
2274 if (tfe
->tag_offset
[tag_length
] != idx
.tag_seek
[tag_length
])
2277 /* Now it's time to do the hash matching. */
2278 if (tfe
->tag_offset
[tag_filename
] != idx
.tag_seek
[tag_filename
])
2280 int match_count
= 0;
2282 /* No filename match, check if we can match two other tags. */
2283 #define tmpdb_match(tag) \
2284 if (tfe->tag_offset[tag] == idx.tag_seek[tag]) \
2287 tmpdb_match(tag_artist
);
2288 tmpdb_match(tag_album
);
2289 tmpdb_match(tag_title
);
2291 if (match_count
< 3)
2293 /* Still no match found, give up. */
2298 /* A match found, now copy & resurrect the statistical data. */
2299 #define tmpdb_copy_tag(tag) \
2300 tfe->tag_offset[tag] = idx.tag_seek[tag]
2302 tmpdb_copy_tag(tag_playcount
);
2303 tmpdb_copy_tag(tag_rating
);
2304 tmpdb_copy_tag(tag_playtime
);
2305 tmpdb_copy_tag(tag_lastplayed
);
2306 tmpdb_copy_tag(tag_commitid
);
2307 tmpdb_copy_tag(tag_lastoffset
);
2309 /* Avoid processing this entry again. */
2310 idx
.flag
|= FLAG_RESURRECTED
;
2312 lseek(masterfd
, -sizeof(struct index_entry
), SEEK_CUR
);
2313 if (ecwrite_index_entry(masterfd
, &idx
) != sizeof(struct index_entry
))
2315 logf("masterfd writeback fail #1");
2320 logf("Entry resurrected");
2325 /* Restore the master index position. */
2326 lseek(masterfd
, masterfd_pos
, SEEK_SET
);
2328 /* Commit the data to the index. */
2329 for (i
= 0; i
< count
; i
++)
2331 int loc
= lseek(masterfd
, 0, SEEK_CUR
);
2333 if (ecread_index_entry(masterfd
, &idx
) != sizeof(struct index_entry
))
2335 logf("read fail #3");
2340 for (j
= 0; j
< TAG_COUNT
; j
++)
2342 if (!TAGCACHE_IS_NUMERIC(j
))
2345 idx
.tag_seek
[j
] = entrybuf
[i
].tag_offset
[j
];
2347 idx
.flag
= entrybuf
[i
].flag
;
2349 if (idx
.tag_seek
[tag_commitid
])
2351 /* Data has been resurrected. */
2352 idx
.flag
|= FLAG_DIRTYNUM
;
2354 else if (tc_stat
.ready
&& current_tcmh
.commitid
> 0)
2356 idx
.tag_seek
[tag_commitid
] = current_tcmh
.commitid
;
2357 idx
.flag
|= FLAG_DIRTYNUM
;
2360 /* Write back the updated index. */
2361 lseek(masterfd
, loc
, SEEK_SET
);
2362 if (ecwrite_index_entry(masterfd
, &idx
) != sizeof(struct index_entry
))
2370 entries_processed
+= count
;
2371 logf("%d/%ld entries processed", entries_processed
, h
->entry_count
);
2382 * == 0 temporary failure
2385 static int build_index(int index_type
, struct tagcache_header
*h
, int tmpfd
)
2388 struct tagcache_header tch
;
2389 struct master_header tcmh
;
2390 struct index_entry idxbuf
[IDX_BUF_DEPTH
];
2392 char buf
[TAG_MAXLEN
+32];
2393 int fd
= -1, masterfd
;
2398 logf("Building index: %d", index_type
);
2400 /* Check the number of entries we need to allocate ram for. */
2401 commit_entry_count
= h
->entry_count
+ 1;
2403 masterfd
= open_master_fd(&tcmh
, false);
2406 commit_entry_count
+= tcmh
.tch
.entry_count
;
2410 remove_files(); /* Just to be sure we are clean. */
2412 /* Open the index file, which contains the tag names. */
2413 fd
= open_tag_fd(&tch
, index_type
, true);
2416 logf("tch.datasize=%ld", tch
.datasize
);
2417 lookup_buffer_depth
= 1 +
2418 /* First part */ commit_entry_count
+
2419 /* Second part */ (tch
.datasize
/ TAGFILE_ENTRY_CHUNK_LENGTH
);
2423 lookup_buffer_depth
= 1 +
2424 /* First part */ commit_entry_count
+
2425 /* Second part */ 0;
2428 logf("lookup_buffer_depth=%ld", lookup_buffer_depth
);
2429 logf("commit_entry_count=%ld", commit_entry_count
);
2431 /* Allocate buffer for all index entries from both old and new
2434 tempbuf_pos
= commit_entry_count
* sizeof(struct tempbuf_searchidx
);
2436 /* Allocate lookup buffer. The first portion of commit_entry_count
2437 * contains the new tags in the temporary file and the second
2438 * part for locating entries already in the db.
2441 * +---------+---------------------------+
2442 * | index | position/ENTRY_CHUNK_SIZE | lookup buffer
2443 * +---------+---------------------------+
2445 * Old tags are inserted to a temporary buffer with position:
2446 * tempbuf_insert(position/ENTRY_CHUNK_SIZE, ...);
2447 * And new tags with index:
2448 * tempbuf_insert(idx, ...);
2450 * The buffer is sorted and written into tag file:
2451 * tempbuf_sort(...);
2452 * leaving master index locations messed up.
2454 * That is fixed using the lookup buffer for old tags:
2455 * new_seek = tempbuf_find_location(old_seek, ...);
2457 * new_seek = tempbuf_find_location(idx);
2459 lookup
= (struct tempbuf_searchidx
**)&tempbuf
[tempbuf_pos
];
2460 tempbuf_pos
+= lookup_buffer_depth
* sizeof(void **);
2461 memset(lookup
, 0, lookup_buffer_depth
* sizeof(void **));
2463 /* And calculate the remaining data space used mainly for storing
2464 * tag data (strings). */
2465 tempbuf_left
= tempbuf_size
- tempbuf_pos
- 8;
2466 if (tempbuf_left
- TAGFILE_ENTRY_AVG_LENGTH
* commit_entry_count
< 0)
2468 logf("Buffer way too small!");
2475 * If tag file contains unique tags (sorted index), we will load
2476 * it entirely into memory so we can resort it later for use with
2479 if (TAGCACHE_IS_SORTED(index_type
))
2481 logf("loading tags...");
2482 for (i
= 0; i
< tch
.entry_count
; i
++)
2484 struct tagfile_entry entry
;
2485 int loc
= lseek(fd
, 0, SEEK_CUR
);
2488 if (ecread_tagfile_entry(fd
, &entry
) != sizeof(struct tagfile_entry
))
2490 logf("read error #7");
2495 if (entry
.tag_length
>= (int)sizeof(buf
))
2497 logf("too long tag #3");
2502 if (read(fd
, buf
, entry
.tag_length
) != entry
.tag_length
)
2504 logf("read error #8");
2509 /* Skip deleted entries. */
2514 * Save the tag and tag id in the memory buffer. Tag id
2515 * is saved so we can later reindex the master lookup
2516 * table when the index gets resorted.
2518 ret
= tempbuf_insert(buf
, loc
/TAGFILE_ENTRY_CHUNK_LENGTH
2519 + commit_entry_count
, entry
.idx_id
,
2520 TAGCACHE_IS_UNIQUE(index_type
));
2531 tempbufidx
= tch
.entry_count
;
2536 * Creating new index file to store the tags. No need to preload
2537 * anything whether the index type is sorted or not.
2539 snprintf(buf
, sizeof buf
, TAGCACHE_FILE_INDEX
, index_type
);
2540 fd
= open(buf
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666);
2543 logf("%s open fail", buf
);
2547 tch
.magic
= TAGCACHE_MAGIC
;
2548 tch
.entry_count
= 0;
2551 if (ecwrite(fd
, &tch
, 1, tagcache_header_ec
, tc_stat
.econ
)
2552 != sizeof(struct tagcache_header
))
2554 logf("header write failed");
2560 /* Loading the tag lookup file as "master file". */
2561 logf("Loading index file");
2562 masterfd
= open(TAGCACHE_FILE_MASTER
, O_RDWR
);
2566 logf("Creating new DB");
2567 masterfd
= open(TAGCACHE_FILE_MASTER
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666);
2571 logf("Failure to create index file (%s)", TAGCACHE_FILE_MASTER
);
2576 /* Write the header (write real values later). */
2577 memset(&tcmh
, 0, sizeof(struct master_header
));
2579 tcmh
.tch
.entry_count
= 0;
2580 tcmh
.tch
.datasize
= 0;
2582 ecwrite(masterfd
, &tcmh
, 1, master_header_ec
, tc_stat
.econ
);
2584 masterfd_pos
= lseek(masterfd
, 0, SEEK_CUR
);
2589 * Master file already exists so we need to process the current
2594 if (ecread(masterfd
, &tcmh
, 1, master_header_ec
, tc_stat
.econ
) !=
2595 sizeof(struct master_header
) || tcmh
.tch
.magic
!= TAGCACHE_MAGIC
)
2597 logf("header error");
2604 * If we reach end of the master file, we need to expand it to
2605 * hold new tags. If the current index is not sorted, we can
2606 * simply append new data to end of the file.
2607 * However, if the index is sorted, we need to update all tag
2608 * pointers in the master file for the current index.
2610 masterfd_pos
= lseek(masterfd
, tcmh
.tch
.entry_count
* sizeof(struct index_entry
),
2612 if (masterfd_pos
== filesize(masterfd
))
2614 logf("appending...");
2620 * Load new unique tags in memory to be sorted later and added
2621 * to the master lookup file.
2623 if (TAGCACHE_IS_SORTED(index_type
))
2625 lseek(tmpfd
, sizeof(struct tagcache_header
), SEEK_SET
);
2626 /* h is the header of the temporary file containing new tags. */
2627 logf("inserting new tags...");
2628 for (i
= 0; i
< h
->entry_count
; i
++)
2630 struct temp_file_entry entry
;
2632 if (read(tmpfd
, &entry
, sizeof(struct temp_file_entry
)) !=
2633 sizeof(struct temp_file_entry
))
2635 logf("read fail #3");
2641 if (entry
.tag_length
[index_type
] >= (long)sizeof(buf
))
2643 logf("too long entry!");
2648 lseek(tmpfd
, entry
.tag_offset
[index_type
], SEEK_CUR
);
2649 if (read(tmpfd
, buf
, entry
.tag_length
[index_type
]) !=
2650 entry
.tag_length
[index_type
])
2652 logf("read fail #4");
2657 if (TAGCACHE_IS_UNIQUE(index_type
))
2658 error
= !tempbuf_insert(buf
, i
, -1, true);
2660 error
= !tempbuf_insert(buf
, i
, tcmh
.tch
.entry_count
+ i
, false);
2664 logf("insert error");
2669 lseek(tmpfd
, entry
.data_length
- entry
.tag_offset
[index_type
] -
2670 entry
.tag_length
[index_type
], SEEK_CUR
);
2675 /* Sort the buffer data and write it to the index file. */
2676 lseek(fd
, sizeof(struct tagcache_header
), SEEK_SET
);
2678 * We need to truncate the index file now. There can be junk left
2679 * at the end of file (however, we _should_ always follow the
2680 * entry_count and don't crash with that).
2682 ftruncate(fd
, lseek(fd
, 0, SEEK_CUR
));
2684 i
= tempbuf_sort(fd
);
2687 logf("sorted %d tags", i
);
2690 * Now update all indexes in the master lookup file.
2692 logf("updating indices...");
2693 lseek(masterfd
, sizeof(struct master_header
), SEEK_SET
);
2694 for (i
= 0; i
< tcmh
.tch
.entry_count
; i
+= idxbuf_pos
)
2697 int loc
= lseek(masterfd
, 0, SEEK_CUR
);
2699 idxbuf_pos
= MIN(tcmh
.tch
.entry_count
- i
, IDX_BUF_DEPTH
);
2701 if (ecread(masterfd
, idxbuf
, idxbuf_pos
, index_entry_ec
, tc_stat
.econ
)
2702 != (int)sizeof(struct index_entry
)*idxbuf_pos
)
2704 logf("read fail #5");
2708 lseek(masterfd
, loc
, SEEK_SET
);
2710 for (j
= 0; j
< idxbuf_pos
; j
++)
2712 if (idxbuf
[j
].flag
& FLAG_DELETED
)
2714 /* We can just ignore deleted entries. */
2715 // idxbuf[j].tag_seek[index_type] = 0;
2719 idxbuf
[j
].tag_seek
[index_type
] = tempbuf_find_location(
2720 idxbuf
[j
].tag_seek
[index_type
]/TAGFILE_ENTRY_CHUNK_LENGTH
2721 + commit_entry_count
);
2723 if (idxbuf
[j
].tag_seek
[index_type
] < 0)
2725 logf("update error: %ld/%d/%ld",
2726 idxbuf
[j
].flag
, i
+j
, tcmh
.tch
.entry_count
);
2734 /* Write back the updated index. */
2735 if (ecwrite(masterfd
, idxbuf
, idxbuf_pos
,
2736 index_entry_ec
, tc_stat
.econ
) !=
2737 (int)sizeof(struct index_entry
)*idxbuf_pos
)
2748 * Walk through the temporary file containing the new tags.
2750 // build_normal_index(h, tmpfd, masterfd, idx);
2751 logf("updating new indices...");
2752 lseek(masterfd
, masterfd_pos
, SEEK_SET
);
2753 lseek(tmpfd
, sizeof(struct tagcache_header
), SEEK_SET
);
2754 lseek(fd
, 0, SEEK_END
);
2755 for (i
= 0; i
< h
->entry_count
; i
+= idxbuf_pos
)
2759 idxbuf_pos
= MIN(h
->entry_count
- i
, IDX_BUF_DEPTH
);
2762 memset(idxbuf
, 0, sizeof(struct index_entry
)*IDX_BUF_DEPTH
);
2766 int loc
= lseek(masterfd
, 0, SEEK_CUR
);
2768 if (ecread(masterfd
, idxbuf
, idxbuf_pos
, index_entry_ec
, tc_stat
.econ
)
2769 != (int)sizeof(struct index_entry
)*idxbuf_pos
)
2771 logf("read fail #6");
2775 lseek(masterfd
, loc
, SEEK_SET
);
2778 /* Read entry headers. */
2779 for (j
= 0; j
< idxbuf_pos
; j
++)
2781 if (!TAGCACHE_IS_SORTED(index_type
))
2783 struct temp_file_entry entry
;
2784 struct tagfile_entry fe
;
2786 if (read(tmpfd
, &entry
, sizeof(struct temp_file_entry
)) !=
2787 sizeof(struct temp_file_entry
))
2789 logf("read fail #7");
2795 if (entry
.tag_length
[index_type
] >= (int)sizeof(buf
))
2797 logf("too long entry!");
2798 logf("length=%d", entry
.tag_length
[index_type
]);
2799 logf("pos=0x%02lx", lseek(tmpfd
, 0, SEEK_CUR
));
2804 lseek(tmpfd
, entry
.tag_offset
[index_type
], SEEK_CUR
);
2805 if (read(tmpfd
, buf
, entry
.tag_length
[index_type
]) !=
2806 entry
.tag_length
[index_type
])
2808 logf("read fail #8");
2809 logf("offset=0x%02lx", entry
.tag_offset
[index_type
]);
2810 logf("length=0x%02x", entry
.tag_length
[index_type
]);
2815 /* Write to index file. */
2816 idxbuf
[j
].tag_seek
[index_type
] = lseek(fd
, 0, SEEK_CUR
);
2817 fe
.tag_length
= entry
.tag_length
[index_type
];
2818 fe
.idx_id
= tcmh
.tch
.entry_count
+ i
+ j
;
2819 ecwrite(fd
, &fe
, 1, tagfile_entry_ec
, tc_stat
.econ
);
2820 write(fd
, buf
, fe
.tag_length
);
2824 lseek(tmpfd
, entry
.data_length
- entry
.tag_offset
[index_type
] -
2825 entry
.tag_length
[index_type
], SEEK_CUR
);
2829 /* Locate the correct entry from the sorted array. */
2830 idxbuf
[j
].tag_seek
[index_type
] = tempbuf_find_location(i
+ j
);
2831 if (idxbuf
[j
].tag_seek
[index_type
] < 0)
2833 logf("entry not found (%d)", j
);
2841 if (ecwrite(masterfd
, idxbuf
, idxbuf_pos
,
2842 index_entry_ec
, tc_stat
.econ
) !=
2843 (int)sizeof(struct index_entry
)*idxbuf_pos
)
2845 logf("tagcache: write fail #4");
2854 /* Finally write the header. */
2855 tch
.magic
= TAGCACHE_MAGIC
;
2856 tch
.entry_count
= tempbufidx
;
2857 tch
.datasize
= lseek(fd
, 0, SEEK_END
) - sizeof(struct tagcache_header
);
2858 lseek(fd
, 0, SEEK_SET
);
2859 ecwrite(fd
, &tch
, 1, tagcache_header_ec
, tc_stat
.econ
);
2861 if (index_type
!= tag_filename
)
2862 h
->datasize
+= tch
.datasize
;
2863 logf("s:%d/%ld/%ld", index_type
, tch
.datasize
, h
->datasize
);
2875 static bool commit(void)
2877 struct tagcache_header tch
;
2878 struct master_header tcmh
;
2882 #ifdef HAVE_DIRCACHE
2883 bool dircache_buffer_stolen
= false;
2885 bool local_allocation
= false;
2887 logf("committing tagcache");
2892 tmpfd
= open(TAGCACHE_FILE_TEMP
, O_RDONLY
);
2895 logf("nothing to commit");
2900 /* Load the header. */
2901 len
= sizeof(struct tagcache_header
);
2902 rc
= read(tmpfd
, &tch
, len
);
2904 if (tch
.magic
!= TAGCACHE_MAGIC
|| rc
!= len
)
2906 logf("incorrect tmpheader");
2908 remove(TAGCACHE_FILE_TEMP
);
2912 if (tch
.entry_count
== 0)
2914 logf("nothing to commit");
2916 remove(TAGCACHE_FILE_TEMP
);
2920 /* Fully initialize existing headers (if any) before going further. */
2921 tc_stat
.ready
= check_all_headers();
2923 #ifdef HAVE_EEPROM_SETTINGS
2924 remove(TAGCACHE_STATEFILE
);
2927 /* At first be sure to unload the ramcache! */
2928 #ifdef HAVE_TC_RAMCACHE
2929 tc_stat
.ramcache
= false;
2934 /* Try to steal every buffer we can :) */
2935 if (tempbuf_size
== 0)
2936 local_allocation
= true;
2938 #ifdef HAVE_DIRCACHE
2939 if (tempbuf_size
== 0)
2941 /* Try to steal the dircache buffer. */
2942 tempbuf
= dircache_steal_buffer(&tempbuf_size
);
2943 tempbuf_size
&= ~0x03;
2945 if (tempbuf_size
> 0)
2947 dircache_buffer_stolen
= true;
2952 #ifdef HAVE_TC_RAMCACHE
2953 if (tempbuf_size
== 0 && tc_stat
.ramcache_allocated
> 0)
2955 tempbuf
= (char *)(ramcache_hdr
+ 1);
2956 tempbuf_size
= tc_stat
.ramcache_allocated
- sizeof(struct ramcache_header
) - 128;
2957 tempbuf_size
&= ~0x03;
2961 /* And finally fail if there are no buffers available. */
2962 if (tempbuf_size
== 0)
2964 logf("delaying commit until next boot");
2965 tc_stat
.commit_delayed
= true;
2971 logf("commit %ld entries...", tch
.entry_count
);
2973 /* Mark DB dirty so it will stay disabled if commit fails. */
2974 current_tcmh
.dirty
= true;
2975 update_master_header();
2977 /* Now create the index files. */
2978 tc_stat
.commit_step
= 0;
2980 tc_stat
.commit_delayed
= false;
2982 for (i
= 0; i
< TAG_COUNT
; i
++)
2986 if (TAGCACHE_IS_NUMERIC(i
))
2989 tc_stat
.commit_step
++;
2990 ret
= build_index(i
, &tch
, tmpfd
);
2994 logf("tagcache failed init");
2996 tc_stat
.commit_delayed
= true;
2998 tc_stat
.commit_step
= 0;
3004 if (!build_numeric_indices(&tch
, tmpfd
))
3006 logf("Failure to commit numeric indices");
3008 tc_stat
.commit_step
= 0;
3015 tc_stat
.commit_step
= 0;
3017 /* Update the master index headers. */
3018 if ( (masterfd
= open_master_fd(&tcmh
, true)) < 0)
3024 remove(TAGCACHE_FILE_TEMP
);
3026 tcmh
.tch
.entry_count
+= tch
.entry_count
;
3027 tcmh
.tch
.datasize
= sizeof(struct master_header
)
3028 + sizeof(struct index_entry
) * tcmh
.tch
.entry_count
3033 lseek(masterfd
, 0, SEEK_SET
);
3034 ecwrite(masterfd
, &tcmh
, 1, master_header_ec
, tc_stat
.econ
);
3037 logf("tagcache committed");
3038 tc_stat
.ready
= check_all_headers();
3039 tc_stat
.readyvalid
= true;
3041 if (local_allocation
)
3047 #ifdef HAVE_DIRCACHE
3048 /* Rebuild the dircache, if we stole the buffer. */
3049 if (dircache_buffer_stolen
)
3053 #ifdef HAVE_TC_RAMCACHE
3054 /* Reload tagcache. */
3055 if (tc_stat
.ramcache_allocated
> 0)
3056 tagcache_start_scan();
3064 static int tempbuf_handle
;
3065 static void allocate_tempbuf(void)
3067 /* Yeah, malloc would be really nice now :) */
3069 tempbuf_size
= 32*1024*1024;
3070 tempbuf
= malloc(tempbuf_size
);
3072 tempbuf_handle
= core_alloc_maximum("tc tempbuf", &tempbuf_size
, NULL
);
3073 tempbuf
= core_get_data(tempbuf_handle
);
3077 static void free_tempbuf(void)
3079 if (tempbuf_size
== 0)
3085 core_free(tempbuf_handle
);
3093 static bool modify_numeric_entry(int masterfd
, int idx_id
, int tag
, long data
)
3095 struct index_entry idx
;
3100 if (!TAGCACHE_IS_NUMERIC(tag
))
3103 if (!get_index(masterfd
, idx_id
, &idx
, false))
3106 idx
.tag_seek
[tag
] = data
;
3107 idx
.flag
|= FLAG_DIRTYNUM
;
3109 return write_index(masterfd
, idx_id
, &idx
);
3113 bool tagcache_modify_numeric_entry(struct tagcache_search
*tcs
,
3116 struct master_header myhdr
;
3118 if (tcs
->masterfd
< 0)
3120 if ( (tcs
->masterfd
= open_master_fd(&myhdr
, true)) < 0)
3124 return modify_numeric_entry(tcs
->masterfd
, tcs
->idx_id
, tag
, data
);
3128 static bool command_queue_is_full(void)
3132 next
= command_queue_widx
+ 1;
3133 if (next
>= TAGCACHE_COMMAND_QUEUE_LENGTH
)
3136 return (next
== command_queue_ridx
);
3139 static void command_queue_sync_callback(void *data
)
3142 struct master_header myhdr
;
3145 mutex_lock(&command_queue_mutex
);
3147 if ( (masterfd
= open_master_fd(&myhdr
, true)) < 0)
3150 while (command_queue_ridx
!= command_queue_widx
)
3152 struct tagcache_command_entry
*ce
= &command_queue
[command_queue_ridx
];
3154 switch (ce
->command
)
3156 case CMD_UPDATE_MASTER_HEADER
:
3159 update_master_header();
3161 /* Re-open the masterfd. */
3162 if ( (masterfd
= open_master_fd(&myhdr
, true)) < 0)
3167 case CMD_UPDATE_NUMERIC
:
3169 modify_numeric_entry(masterfd
, ce
->idx_id
, ce
->tag
, ce
->data
);
3174 if (++command_queue_ridx
>= TAGCACHE_COMMAND_QUEUE_LENGTH
)
3175 command_queue_ridx
= 0;
3180 tc_stat
.queue_length
= 0;
3181 mutex_unlock(&command_queue_mutex
);
3184 static void run_command_queue(bool force
)
3186 if (COMMAND_QUEUE_IS_EMPTY
)
3189 if (force
|| command_queue_is_full())
3190 command_queue_sync_callback(NULL
);
3192 register_storage_idle_func(command_queue_sync_callback
);
3195 static void queue_command(int cmd
, long idx_id
, int tag
, long data
)
3201 mutex_lock(&command_queue_mutex
);
3202 next
= command_queue_widx
+ 1;
3203 if (next
>= TAGCACHE_COMMAND_QUEUE_LENGTH
)
3206 /* Make sure queue is not full. */
3207 if (next
!= command_queue_ridx
)
3209 struct tagcache_command_entry
*ce
= &command_queue
[command_queue_widx
];
3212 ce
->idx_id
= idx_id
;
3216 command_queue_widx
= next
;
3218 tc_stat
.queue_length
++;
3220 mutex_unlock(&command_queue_mutex
);
3224 /* Queue is full, try again later... */
3225 mutex_unlock(&command_queue_mutex
);
3230 long tagcache_increase_serial(void)
3240 old
= current_tcmh
.serial
++;
3241 queue_command(CMD_UPDATE_MASTER_HEADER
, 0, 0, 0);
3246 void tagcache_update_numeric(int idx_id
, int tag
, long data
)
3248 queue_command(CMD_UPDATE_NUMERIC
, idx_id
, tag
, data
);
3250 #endif /* !__PCTOOL__ */
3252 long tagcache_get_serial(void)
3254 return current_tcmh
.serial
;
3257 long tagcache_get_commitid(void)
3259 return current_tcmh
.commitid
;
3262 static bool write_tag(int fd
, const char *tagstr
, const char *datastr
)
3267 snprintf(buf
, sizeof buf
, "%s=\"", tagstr
);
3268 for (i
= strlen(buf
); i
< (long)sizeof(buf
)-4; i
++)
3270 if (*datastr
== '\0')
3273 if (*datastr
== '"' || *datastr
== '\\')
3276 else if (*datastr
== '\n')
3283 buf
[i
] = *(datastr
++);
3286 strcpy(&buf
[i
], "\" ");
3288 write(fd
, buf
, i
+ 2);
3295 static bool read_tag(char *dest
, long size
,
3296 const char *src
, const char *tagstr
)
3299 char current_tag
[32];
3301 while (*src
!= '\0')
3303 /* Skip all whitespace */
3311 /* Read in tag name */
3312 while (*src
!= '=' && *src
!= ' ')
3314 current_tag
[pos
] = *src
;
3318 if (*src
== '\0' || pos
>= (long)sizeof(current_tag
))
3321 current_tag
[pos
] = '\0';
3323 /* Read in tag data */
3325 /* Find the start. */
3326 while (*src
!= '"' && *src
!= '\0')
3329 if (*src
== '\0' || *(++src
) == '\0')
3332 /* Read the data. */
3333 for (pos
= 0; pos
< size
; pos
++)
3359 dest
[pos
] = *(src
++);
3364 if (!strcasecmp(tagstr
, current_tag
))
3371 static int parse_changelog_line(int line_n
, char *buf
, void *parameters
)
3373 struct index_entry idx
;
3374 char tag_data
[TAG_MAXLEN
+32];
3376 long masterfd
= (long)parameters
;
3377 const int import_tags
[] = { tag_playcount
, tag_rating
, tag_playtime
,
3378 tag_lastplayed
, tag_commitid
, tag_lastoffset
};
3385 /* logf("%d/%s", line_n, buf); */
3386 if (!read_tag(tag_data
, sizeof tag_data
, buf
, "filename"))
3388 logf("%d/filename missing", line_n
);
3393 idx_id
= find_index(tag_data
);
3396 logf("%d/entry not found", line_n
);
3400 if (!get_index(masterfd
, idx_id
, &idx
, false))
3402 logf("%d/failed to retrieve index entry", line_n
);
3406 /* Stop if tag has already been modified. */
3407 if (idx
.flag
& FLAG_DIRTYNUM
)
3410 logf("%d/import: %s", line_n
, tag_data
);
3412 idx
.flag
|= FLAG_DIRTYNUM
;
3413 for (i
= 0; i
< (long)(sizeof(import_tags
)/sizeof(import_tags
[0])); i
++)
3417 if (!read_tag(tag_data
, sizeof tag_data
, buf
,
3418 tagcache_tag_to_str(import_tags
[i
])))
3423 data
= atoi(tag_data
);
3427 idx
.tag_seek
[import_tags
[i
]] = data
;
3429 if (import_tags
[i
] == tag_lastplayed
&& data
>= current_tcmh
.serial
)
3430 current_tcmh
.serial
= data
+ 1;
3431 else if (import_tags
[i
] == tag_commitid
&& data
>= current_tcmh
.commitid
)
3432 current_tcmh
.commitid
= data
+ 1;
3435 return write_index(masterfd
, idx_id
, &idx
) ? 0 : -5;
3438 bool tagcache_import_changelog(void)
3440 struct master_header myhdr
;
3441 struct tagcache_header tch
;
3452 clfd
= open(TAGCACHE_FILE_CHANGELOG
, O_RDONLY
);
3455 logf("failure to open changelog");
3459 if ( (masterfd
= open_master_fd(&myhdr
, true)) < 0)
3467 filenametag_fd
= open_tag_fd(&tch
, tag_filename
, false);
3469 fast_readline(clfd
, buf
, sizeof buf
, (long *)masterfd
,
3470 parse_changelog_line
);
3475 if (filenametag_fd
>= 0)
3477 close(filenametag_fd
);
3478 filenametag_fd
= -1;
3483 update_master_header();
3488 #endif /* !__PCTOOL__ */
3490 bool tagcache_create_changelog(struct tagcache_search
*tcs
)
3492 struct master_header myhdr
;
3493 struct index_entry idx
;
3494 char buf
[TAG_MAXLEN
+32];
3502 if (!tagcache_search(tcs
, tag_filename
))
3505 /* Initialize the changelog */
3506 clfd
= open(TAGCACHE_FILE_CHANGELOG
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666);
3509 logf("failure to open changelog");
3513 if (tcs
->masterfd
< 0)
3515 if ( (tcs
->masterfd
= open_master_fd(&myhdr
, false)) < 0)
3520 lseek(tcs
->masterfd
, 0, SEEK_SET
);
3521 ecread(tcs
->masterfd
, &myhdr
, 1, master_header_ec
, tc_stat
.econ
);
3524 write(clfd
, "## Changelog version 1\n", 23);
3526 for (i
= 0; i
< myhdr
.tch
.entry_count
; i
++)
3528 if (ecread_index_entry(tcs
->masterfd
, &idx
) != sizeof(struct index_entry
))
3530 logf("read error #9");
3531 tagcache_search_finish(tcs
);
3536 /* Skip until the entry found has been modified. */
3537 if (! (idx
.flag
& FLAG_DIRTYNUM
) )
3540 /* Skip deleted entries too. */
3541 if (idx
.flag
& FLAG_DELETED
)
3544 /* Now retrieve all tags. */
3545 for (j
= 0; j
< TAG_COUNT
; j
++)
3547 if (TAGCACHE_IS_NUMERIC(j
))
3549 snprintf(temp
, sizeof temp
, "%d", (int)idx
.tag_seek
[j
]);
3550 write_tag(clfd
, tagcache_tag_to_str(j
), temp
);
3555 tagcache_retrieve(tcs
, i
, tcs
->type
, buf
, sizeof buf
);
3556 write_tag(clfd
, tagcache_tag_to_str(j
), buf
);
3559 write(clfd
, "\n", 1);
3565 tagcache_search_finish(tcs
);
3570 static bool delete_entry(long idx_id
)
3575 struct index_entry idx
, myidx
;
3576 struct master_header myhdr
;
3577 char buf
[TAG_MAXLEN
+32];
3578 int in_use
[TAG_COUNT
];
3580 logf("delete_entry(): %ld", idx_id
);
3582 #ifdef HAVE_TC_RAMCACHE
3583 /* At first mark the entry removed from ram cache. */
3584 if (tc_stat
.ramcache
)
3585 ramcache_hdr
->indices
[idx_id
].flag
|= FLAG_DELETED
;
3588 if ( (masterfd
= open_master_fd(&myhdr
, true) ) < 0)
3591 lseek(masterfd
, idx_id
* sizeof(struct index_entry
), SEEK_CUR
);
3592 if (ecread_index_entry(masterfd
, &myidx
) != sizeof(struct index_entry
))
3594 logf("delete_entry(): read error");
3598 if (myidx
.flag
& FLAG_DELETED
)
3600 logf("delete_entry(): already deleted!");
3604 myidx
.flag
|= FLAG_DELETED
;
3605 lseek(masterfd
, -sizeof(struct index_entry
), SEEK_CUR
);
3606 if (ecwrite_index_entry(masterfd
, &myidx
) != sizeof(struct index_entry
))
3608 logf("delete_entry(): write_error #1");
3612 /* Now check which tags are no longer in use (if any) */
3613 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
3616 lseek(masterfd
, sizeof(struct master_header
), SEEK_SET
);
3617 for (i
= 0; i
< myhdr
.tch
.entry_count
; i
++)
3619 struct index_entry
*idxp
;
3621 #ifdef HAVE_TC_RAMCACHE
3622 /* Use RAM DB if available for greater speed */
3623 if (tc_stat
.ramcache
)
3624 idxp
= &ramcache_hdr
->indices
[i
];
3628 if (ecread_index_entry(masterfd
, &idx
) != sizeof(struct index_entry
))
3630 logf("delete_entry(): read error #2");
3636 if (idxp
->flag
& FLAG_DELETED
)
3639 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
3641 if (TAGCACHE_IS_NUMERIC(tag
))
3644 if (idxp
->tag_seek
[tag
] == myidx
.tag_seek
[tag
])
3649 /* Now delete all tags no longer in use. */
3650 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
3652 struct tagcache_header tch
;
3653 int oldseek
= myidx
.tag_seek
[tag
];
3655 if (TAGCACHE_IS_NUMERIC(tag
))
3659 * Replace tag seek with a hash value of the field string data.
3660 * That way runtime statistics of moved or altered files can be
3663 #ifdef HAVE_TC_RAMCACHE
3664 if (tc_stat
.ramcache
&& tag
!= tag_filename
)
3666 struct tagfile_entry
*tfe
;
3667 int32_t *seek
= &ramcache_hdr
->indices
[idx_id
].tag_seek
[tag
];
3669 tfe
= (struct tagfile_entry
*)&ramcache_hdr
->tags
[tag
][*seek
];
3670 *seek
= crc_32(tfe
->tag_data
, strlen(tfe
->tag_data
), 0xffffffff);
3671 myidx
.tag_seek
[tag
] = *seek
;
3676 struct tagfile_entry tfe
;
3678 /* Open the index file, which contains the tag names. */
3679 if ((fd
= open_tag_fd(&tch
, tag
, true)) < 0)
3682 /* Skip the header block */
3683 lseek(fd
, myidx
.tag_seek
[tag
], SEEK_SET
);
3684 if (ecread_tagfile_entry(fd
, &tfe
) != sizeof(struct tagfile_entry
))
3686 logf("delete_entry(): read error #3");
3690 if (read(fd
, buf
, tfe
.tag_length
) != tfe
.tag_length
)
3692 logf("delete_entry(): read error #4");
3696 myidx
.tag_seek
[tag
] = crc_32(buf
, strlen(buf
), 0xffffffff);
3701 logf("in use: %d/%d", tag
, in_use
[tag
]);
3710 #ifdef HAVE_TC_RAMCACHE
3711 /* Delete from ram. */
3712 if (tc_stat
.ramcache
&& tag
!= tag_filename
)
3714 struct tagfile_entry
*tagentry
=
3715 (struct tagfile_entry
*)&ramcache_hdr
->tags
[tag
][oldseek
];
3716 tagentry
->tag_data
[0] = '\0';
3720 /* Open the index file, which contains the tag names. */
3723 if ((fd
= open_tag_fd(&tch
, tag
, true)) < 0)
3727 /* Skip the header block */
3728 lseek(fd
, oldseek
+ sizeof(struct tagfile_entry
), SEEK_SET
);
3730 /* Debug, print 10 first characters of the tag
3733 logf("TAG:%s", buf);
3734 lseek(fd, -10, SEEK_CUR);
3737 /* Write first data byte in tag as \0 */
3740 /* Now tag data has been removed */
3745 /* Write index entry back into master index. */
3746 lseek(masterfd
, sizeof(struct master_header
) +
3747 (idx_id
* sizeof(struct index_entry
)), SEEK_SET
);
3748 if (ecwrite_index_entry(masterfd
, &myidx
) != sizeof(struct index_entry
))
3750 logf("delete_entry(): write_error #2");
3769 * Returns true if there is an event waiting in the queue
3770 * that requires the current operation to be aborted.
3772 static bool check_event_queue(void)
3774 struct queue_event ev
;
3776 if(!queue_peek(&tagcache_queue
, &ev
))
3783 case SYS_USB_CONNECTED
:
3791 #ifdef HAVE_TC_RAMCACHE
3792 static bool allocate_tagcache(void)
3794 struct master_header tcmh
;
3797 /* Load the header. */
3798 if ( (fd
= open_master_fd(&tcmh
, false)) < 0)
3800 ramcache_hdr
= NULL
;
3807 * Now calculate the required cache size plus
3808 * some extra space for alignment fixes.
3810 tc_stat
.ramcache_allocated
= tcmh
.tch
.datasize
+ 256 + TAGCACHE_RESERVE
+
3811 sizeof(struct ramcache_header
) + TAG_COUNT
*sizeof(void *);
3812 int handle
= core_alloc("tc ramcache", tc_stat
.ramcache_allocated
);
3813 ramcache_hdr
= core_get_data(handle
);
3814 memset(ramcache_hdr
, 0, sizeof(struct ramcache_header
));
3815 memcpy(¤t_tcmh
, &tcmh
, sizeof current_tcmh
);
3816 logf("tagcache: %d bytes allocated.", tc_stat
.ramcache_allocated
);
3821 # ifdef HAVE_EEPROM_SETTINGS
3822 static bool tagcache_dumpload(void)
3824 struct statefile_header shdr
;
3829 fd
= open(TAGCACHE_STATEFILE
, O_RDONLY
);
3832 logf("no tagcache statedump");
3836 /* Check the statefile memory placement */
3837 rc
= read(fd
, &shdr
, sizeof(struct statefile_header
));
3838 if (rc
!= sizeof(struct statefile_header
)
3839 || shdr
.magic
!= TAGCACHE_STATEFILE_MAGIC
3840 || shdr
.mh
.tch
.magic
!= TAGCACHE_MAGIC
)
3842 logf("incorrect statefile");
3843 ramcache_hdr
= NULL
;
3849 /* Lets allocate real memory and load it */
3850 handle
= core_alloc("tc ramcache", shdr
.tc_stat
.ramcache_allocated
);
3851 ramcache_hdr
= core_get_data(handle
);
3852 rc
= read(fd
, ramcache_hdr
, shdr
.tc_stat
.ramcache_allocated
);
3855 offpos
= (long)ramcache_hdr
- (long)shdr
.hdr
;
3856 if (rc
!= shdr
.tc_stat
.ramcache_allocated
)
3858 logf("read failure!");
3859 ramcache_hdr
= NULL
;
3863 memcpy(&tc_stat
, &shdr
.tc_stat
, sizeof(struct tagcache_stat
));
3865 /* Now fix the pointers */
3866 for (i
= 0; i
< TAG_COUNT
; i
++)
3867 ramcache_hdr
->tags
[i
] += offpos
;
3869 /* Load the tagcache master header (should match the actual DB file header). */
3870 memcpy(¤t_tcmh
, &shdr
.mh
, sizeof current_tcmh
);
3875 static bool tagcache_dumpsave(void)
3877 struct statefile_header shdr
;
3880 if (!tc_stat
.ramcache
)
3883 fd
= open(TAGCACHE_STATEFILE
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0666);
3886 logf("failed to create a statedump");
3890 /* Create the header */
3891 shdr
.magic
= TAGCACHE_STATEFILE_MAGIC
;
3892 shdr
.hdr
= ramcache_hdr
;
3893 memcpy(&shdr
.mh
, ¤t_tcmh
, sizeof current_tcmh
);
3894 memcpy(&shdr
.tc_stat
, &tc_stat
, sizeof tc_stat
);
3895 write(fd
, &shdr
, sizeof shdr
);
3897 /* And dump the data too */
3898 write(fd
, ramcache_hdr
, tc_stat
.ramcache_allocated
);
3905 static bool load_tagcache(void)
3907 struct tagcache_header
*tch
;
3908 struct master_header tcmh
;
3909 long bytesleft
= tc_stat
.ramcache_allocated
- sizeof(struct ramcache_header
);
3910 struct index_entry
*idx
;
3915 # ifdef HAVE_DIRCACHE
3916 while (dircache_is_initializing())
3919 dircache_set_appflag(DIRCACHE_APPFLAG_TAGCACHE
);
3922 logf("loading tagcache to ram...");
3924 fd
= open(TAGCACHE_FILE_MASTER
, O_RDONLY
);
3927 logf("tagcache open failed");
3931 if (ecread(fd
, &tcmh
, 1, master_header_ec
, tc_stat
.econ
)
3932 != sizeof(struct master_header
)
3933 || tcmh
.tch
.magic
!= TAGCACHE_MAGIC
)
3935 logf("incorrect header");
3939 /* Master header copy should already match, this can be redundant to do. */
3940 memcpy(¤t_tcmh
, &tcmh
, sizeof current_tcmh
);
3942 idx
= ramcache_hdr
->indices
;
3944 /* Load the master index table. */
3945 for (i
= 0; i
< tcmh
.tch
.entry_count
; i
++)
3947 bytesleft
-= sizeof(struct index_entry
);
3950 logf("too big tagcache.");
3955 /* DEBUG: After tagcache commit and dircache rebuild, hdr-sturcture
3956 * may become corrupt. */
3957 rc
= ecread_index_entry(fd
, idx
);
3958 if (rc
!= sizeof(struct index_entry
))
3960 logf("read error #10");
3970 /* Load the tags. */
3972 for (tag
= 0; tag
< TAG_COUNT
; tag
++)
3974 struct tagfile_entry
*fe
;
3975 char buf
[TAG_MAXLEN
+32];
3977 if (TAGCACHE_IS_NUMERIC(tag
))
3980 //p = ((void *)p+1);
3981 p
= (char *)((long)p
& ~0x03) + 0x04;
3982 ramcache_hdr
->tags
[tag
] = p
;
3984 /* Check the header. */
3985 tch
= (struct tagcache_header
*)p
;
3986 p
+= sizeof(struct tagcache_header
);
3988 if ( (fd
= open_tag_fd(tch
, tag
, false)) < 0)
3991 for (ramcache_hdr
->entry_count
[tag
] = 0;
3992 ramcache_hdr
->entry_count
[tag
] < tch
->entry_count
;
3993 ramcache_hdr
->entry_count
[tag
]++)
3997 if (do_timed_yield())
3999 /* Abort if we got a critical event in queue */
4000 if (check_event_queue())
4004 fe
= (struct tagfile_entry
*)p
;
4005 pos
= lseek(fd
, 0, SEEK_CUR
);
4006 rc
= ecread_tagfile_entry(fd
, fe
);
4007 if (rc
!= sizeof(struct tagfile_entry
))
4009 /* End of lookup table. */
4010 logf("read error #11");
4015 /* We have a special handling for the filename tags. */
4016 if (tag
== tag_filename
)
4018 # ifdef HAVE_DIRCACHE
4022 idx
= &ramcache_hdr
->indices
[fe
->idx_id
];
4024 if (fe
->tag_length
>= (long)sizeof(buf
)-1)
4028 logf("TAG:%s", buf
);
4029 logf("too long filename");
4034 rc
= read(fd
, buf
, fe
->tag_length
);
4035 if (rc
!= fe
->tag_length
)
4037 logf("read error #12");
4042 /* Check if the entry has already been removed */
4043 if (idx
->flag
& FLAG_DELETED
)
4046 /* This flag must not be used yet. */
4047 if (idx
->flag
& FLAG_DIRCACHE
)
4049 logf("internal error!");
4054 if (idx
->tag_seek
[tag
] != pos
)
4056 logf("corrupt data structures!");
4061 # ifdef HAVE_DIRCACHE
4062 if (dircache_is_enabled())
4064 dc
= dircache_get_entry_id(buf
);
4067 logf("Entry no longer valid.");
4069 if (global_settings
.tagcache_autoupdate
)
4070 delete_entry(fe
->idx_id
);
4074 idx
->flag
|= FLAG_DIRCACHE
;
4075 idx
->tag_seek
[tag_filename
] = dc
;
4080 /* This will be very slow unless dircache is enabled
4081 or target is flash based, but do it anyway for
4083 /* Check if entry has been removed. */
4084 if (global_settings
.tagcache_autoupdate
)
4086 if (!file_exists(buf
))
4088 logf("Entry no longer valid.");
4090 delete_entry(fe
->idx_id
);
4099 bytesleft
-= sizeof(struct tagfile_entry
) + fe
->tag_length
;
4102 logf("too big tagcache #2");
4103 logf("tl: %ld", fe
->tag_length
);
4104 logf("bl: %ld", bytesleft
);
4110 rc
= read(fd
, fe
->tag_data
, fe
->tag_length
);
4113 if (rc
!= fe
->tag_length
)
4115 logf("read error #13");
4116 logf("rc=0x%04x", rc
); // 0x431
4117 logf("len=0x%04lx", fe
->tag_length
); // 0x4000
4118 logf("pos=0x%04lx", lseek(fd
, 0, SEEK_CUR
)); // 0x433
4119 logf("tag=0x%02x", tag
); // 0x00
4127 tc_stat
.ramcache_used
= tc_stat
.ramcache_allocated
- bytesleft
;
4128 logf("tagcache loaded into ram!");
4132 #endif /* HAVE_TC_RAMCACHE */
4134 static bool check_deleted_files(void)
4137 char buf
[TAG_MAXLEN
+32];
4138 struct tagfile_entry tfe
;
4140 logf("reverse scan...");
4141 snprintf(buf
, sizeof buf
, TAGCACHE_FILE_INDEX
, tag_filename
);
4142 fd
= open(buf
, O_RDONLY
);
4146 logf("%s open fail", buf
);
4150 lseek(fd
, sizeof(struct tagcache_header
), SEEK_SET
);
4151 while (ecread_tagfile_entry(fd
, &tfe
) == sizeof(struct tagfile_entry
)
4153 && !check_event_queue()
4157 if (tfe
.tag_length
>= (long)sizeof(buf
)-1)
4159 logf("too long tag");
4164 if (read(fd
, buf
, tfe
.tag_length
) != tfe
.tag_length
)
4166 logf("read error #14");
4171 /* Check if the file has already deleted from the db. */
4175 /* Now check if the file exists. */
4176 if (!file_exists(buf
))
4178 logf("Entry no longer valid.");
4179 logf("-> %s / %ld", buf
, tfe
.tag_length
);
4180 delete_entry(tfe
.idx_id
);
4192 /* Note that this function must not be inlined, otherwise the whole point
4193 * of having the code in a separate function is lost.
4195 static void __attribute__ ((noinline
)) check_ignore(const char *dirname
,
4196 int *ignore
, int *unignore
)
4198 char newpath
[MAX_PATH
];
4200 /* check for a database.ignore file */
4201 snprintf(newpath
, MAX_PATH
, "%s/database.ignore", dirname
);
4202 *ignore
= file_exists(newpath
);
4203 /* check for a database.unignore file */
4204 snprintf(newpath
, MAX_PATH
, "%s/database.unignore", dirname
);
4205 *unignore
= file_exists(newpath
);
4208 static struct search_roots_ll
{
4210 struct search_roots_ll
* next
;
4215 * This adds a path to the search roots, possibly during traveling through
4216 * the filesystem. It only adds if the path is not inside an already existing
4219 * Returns true if it added the path to the search roots
4221 * Windows 2000 and greater supports symlinks, but they don't provide
4222 * realpath() or readlink(), and symlinks are rarely used on them so
4223 * ignore this for windows for now
4225 static bool add_search_root(const char *name
)
4229 struct search_roots_ll
*this, *prev
= NULL
;
4230 char target
[MAX_PATH
];
4231 /* Okay, realpath() is almost completely broken on android
4233 * It doesn't accept NULL for resolved_name to dynamically allocate
4234 * the resulting path; and it assumes resolved_name to be PATH_MAX
4235 * (actually MAXPATHLEN, but it's the same [as of 2.3]) long
4236 * and blindly writes to the end if it
4238 * therefore use sufficiently large static storage here
4239 * Note that PATH_MAX != MAX_PATH
4241 static char abs_target
[PATH_MAX
];
4244 len
= readlink(name
, target
, sizeof(target
));
4249 if (realpath(target
, abs_target
) == NULL
)
4252 for(this = &roots_ll
; this; prev
= this, this = this->next
)
4254 size_t root_len
= strlen(this->path
);
4255 /* check if the link target is inside of an existing search root
4256 * don't add if target is inside, we'll scan it later */
4257 if (!strncmp(this->path
, abs_target
, root_len
))
4263 size_t len
= strlen(abs_target
) + 1; /* count \0 */
4264 this = malloc(sizeof(struct search_roots_ll
) + len
);
4265 if (!this || len
> MAX_PATH
)
4267 logf("Error at adding a search root: %s", this ? "path too long":"OOM");
4272 this->path
= ((char*)this) + sizeof(struct search_roots_ll
);
4273 strcpy((char*)this->path
, abs_target
); /* ok to cast const away here */
4276 logf("Added %s to the search roots\n", abs_target
);
4283 static int free_search_roots(struct search_roots_ll
* start
)
4288 ret
+= free_search_roots(start
->next
);
4289 ret
+= sizeof(struct search_roots_ll
);
4294 #else /* native, simulator */
4295 #define add_search_root(a) do {} while(0)
4296 #define free_search_roots(a) do {} while(0)
4299 static bool check_dir(const char *dirname
, int add_files
)
4303 int success
= false;
4304 int ignore
, unignore
;
4306 dir
= opendir(dirname
);
4309 logf("tagcache: opendir(%s) failed", dirname
);
4312 /* check for a database.ignore and database.unignore */
4313 check_ignore(dirname
, &ignore
, &unignore
);
4315 /* don't do anything if both ignore and unignore are there */
4316 if (ignore
!= unignore
)
4317 add_files
= unignore
;
4319 /* Recursively scan the dir. */
4323 while (!check_event_queue())
4326 struct dirent
*entry
= readdir(dir
);
4333 if (!strcmp((char *)entry
->d_name
, ".") ||
4334 !strcmp((char *)entry
->d_name
, ".."))
4337 struct dirinfo info
= dir_get_info(dir
, entry
);
4341 len
= strlen(curpath
);
4342 /* don't add an extra / for curpath == / */
4343 if (len
<= 1) len
= 0;
4344 snprintf(&curpath
[len
], sizeof(curpath
) - len
, "/%s", entry
->d_name
);
4346 processed_dir_count
++;
4347 if (info
.attribute
& ATTR_DIRECTORY
)
4349 { /* don't follow symlinks to dirs, but try to add it as a search root
4350 * this makes able to avoid looping in recursive symlinks */
4351 if (info
.attribute
& ATTR_LINK
)
4352 add_search_root(curpath
);
4354 check_dir(curpath
, add_files
);
4357 check_dir(curpath
, add_files
);
4361 tc_stat
.curentry
= curpath
;
4363 /* Add a new entry to the temporary db file. */
4364 add_tagcache(curpath
, (info
.wrtdate
<< 16) | info
.wrttime
4365 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
4366 , dir
->internal_entry
4370 /* Wait until current path for debug screen is read and unset. */
4371 while (tc_stat
.syncscreen
&& tc_stat
.curentry
!= NULL
)
4374 tc_stat
.curentry
= NULL
;
4377 curpath
[len
] = '\0';
4385 void tagcache_screensync_event(void)
4387 tc_stat
.curentry
= NULL
;
4390 void tagcache_screensync_enable(bool state
)
4392 tc_stat
.syncscreen
= state
;
4395 void tagcache_build(const char *path
)
4397 struct tagcache_header header
;
4402 total_entry_count
= 0;
4403 processed_dir_count
= 0;
4405 #ifdef HAVE_DIRCACHE
4406 while (dircache_is_initializing())
4410 logf("updating tagcache");
4412 cachefd
= open(TAGCACHE_FILE_TEMP
, O_RDONLY
);
4415 logf("skipping, cache already waiting for commit");
4420 cachefd
= open(TAGCACHE_FILE_TEMP
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
4423 logf("master file open failed: %s", TAGCACHE_FILE_TEMP
);
4427 filenametag_fd
= open_tag_fd(&header
, tag_filename
, false);
4431 logf("Scanning files...");
4432 /* Scan for new files. */
4433 memset(&header
, 0, sizeof(struct tagcache_header
));
4434 write(cachefd
, &header
, sizeof(struct tagcache_header
));
4437 roots_ll
.path
= path
;
4438 roots_ll
.next
= NULL
;
4439 struct search_roots_ll
* this;
4440 /* check_dir might add new roots */
4441 for(this = &roots_ll
; this; this = this->next
)
4443 strcpy(curpath
, this->path
);
4444 ret
= ret
&& check_dir(this->path
, true);
4447 free_search_roots(roots_ll
.next
);
4449 /* Write the header. */
4450 header
.magic
= TAGCACHE_MAGIC
;
4451 header
.datasize
= data_size
;
4452 header
.entry_count
= total_entry_count
;
4453 lseek(cachefd
, 0, SEEK_SET
);
4454 write(cachefd
, &header
, sizeof(struct tagcache_header
));
4457 if (filenametag_fd
>= 0)
4459 close(filenametag_fd
);
4460 filenametag_fd
= -1;
4470 /* Commit changes to the database. */
4476 logf("tagcache built!");
4482 #ifdef HAVE_TC_RAMCACHE
4485 /* Import runtime statistics if we just initialized the db. */
4486 if (current_tcmh
.serial
== 0)
4487 queue_post(&tagcache_queue
, Q_IMPORT_CHANGELOG
, 0);
4494 #ifdef HAVE_TC_RAMCACHE
4495 static void load_ramcache(void)
4502 /* At first we should load the cache (if exists). */
4503 tc_stat
.ramcache
= load_tagcache();
4505 if (!tc_stat
.ramcache
)
4507 /* If loading failed, it must indicate some problem with the db
4508 * so disable it entirely to prevent further issues. */
4509 tc_stat
.ready
= false;
4510 ramcache_hdr
= NULL
;
4516 void tagcache_unload_ramcache(void)
4518 tc_stat
.ramcache
= false;
4519 /* Just to make sure there is no statefile present. */
4520 // remove(TAGCACHE_STATEFILE);
4525 static void tagcache_thread(void)
4527 struct queue_event ev
;
4528 bool check_done
= false;
4530 /* If the previous cache build/update was interrupted, commit
4531 * the changes first in foreground. */
4537 #ifdef HAVE_TC_RAMCACHE
4538 # ifdef HAVE_EEPROM_SETTINGS
4539 if (firmware_settings
.initialized
&& firmware_settings
.disk_clean
4540 && global_settings
.tagcache_ram
)
4542 check_done
= tagcache_dumpload();
4545 remove(TAGCACHE_STATEFILE
);
4548 /* Allocate space for the tagcache if found on disk. */
4549 if (global_settings
.tagcache_ram
&& !tc_stat
.ramcache
)
4550 allocate_tagcache();
4554 tc_stat
.initialized
= true;
4556 /* Don't delay bootup with the header check but do it on background. */
4560 tc_stat
.ready
= check_all_headers();
4561 tc_stat
.readyvalid
= true;
4566 run_command_queue(false);
4568 queue_wait_w_tmo(&tagcache_queue
, &ev
, HZ
);
4572 case Q_IMPORT_CHANGELOG
:
4573 tagcache_import_changelog();
4578 remove(TAGCACHE_FILE_TEMP
);
4579 tagcache_build("/");
4583 tagcache_build("/");
4584 #ifdef HAVE_TC_RAMCACHE
4587 check_deleted_files();
4593 if (check_done
|| !tc_stat
.ready
)
4596 #ifdef HAVE_TC_RAMCACHE
4597 if (!tc_stat
.ramcache
&& global_settings
.tagcache_ram
)
4600 if (tc_stat
.ramcache
&& global_settings
.tagcache_autoupdate
)
4601 tagcache_build("/");
4605 if (global_settings
.tagcache_autoupdate
)
4607 tagcache_build("/");
4609 /* This will be very slow unless dircache is enabled
4610 or target is flash based, but do it anyway for
4612 check_deleted_files();
4615 logf("tagcache check done");
4626 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
4627 case SYS_USB_CONNECTED
:
4628 logf("USB: TagCache");
4629 usb_acknowledge(SYS_USB_CONNECTED_ACK
);
4630 usb_wait_for_disconnect(&tagcache_queue
);
4637 bool tagcache_prepare_shutdown(void)
4639 if (tagcache_get_commit_step() > 0)
4642 tagcache_stop_scan();
4643 while (read_lock
|| write_lock
)
4649 void tagcache_shutdown(void)
4651 /* Flush the command queue. */
4652 run_command_queue(true);
4654 #ifdef HAVE_EEPROM_SETTINGS
4655 if (tc_stat
.ramcache
)
4656 tagcache_dumpsave();
4660 static int get_progress(void)
4662 int total_count
= -1;
4664 #ifdef HAVE_DIRCACHE
4665 if (dircache_is_enabled())
4667 total_count
= dircache_get_entry_count();
4671 #ifdef HAVE_TC_RAMCACHE
4673 if (ramcache_hdr
&& tc_stat
.ramcache
)
4674 total_count
= current_tcmh
.tch
.entry_count
;
4678 if (total_count
< 0)
4681 return processed_dir_count
* 100 / total_count
;
4684 struct tagcache_stat
* tagcache_get_stat(void)
4686 tc_stat
.progress
= get_progress();
4687 tc_stat
.processed_entries
= processed_dir_count
;
4692 void tagcache_start_scan(void)
4694 queue_post(&tagcache_queue
, Q_START_SCAN
, 0);
4697 bool tagcache_update(void)
4702 queue_post(&tagcache_queue
, Q_UPDATE
, 0);
4706 bool tagcache_rebuild()
4708 queue_post(&tagcache_queue
, Q_REBUILD
, 0);
4712 void tagcache_stop_scan(void)
4714 queue_post(&tagcache_queue
, Q_STOP_SCAN
, 0);
4717 #ifdef HAVE_TC_RAMCACHE
4718 bool tagcache_is_ramcache(void)
4720 return tc_stat
.ramcache
;
4724 #endif /* !__PCTOOL__ */
4727 void tagcache_init(void)
4729 memset(&tc_stat
, 0, sizeof(struct tagcache_stat
));
4730 memset(¤t_tcmh
, 0, sizeof(struct master_header
));
4731 filenametag_fd
= -1;
4732 write_lock
= read_lock
= 0;
4735 mutex_init(&command_queue_mutex
);
4736 queue_init(&tagcache_queue
, true);
4737 create_thread(tagcache_thread
, tagcache_stack
,
4738 sizeof(tagcache_stack
), 0, tagcache_thread_name
4739 IF_PRIO(, PRIORITY_BACKGROUND
)
4742 tc_stat
.initialized
= true;
4746 tc_stat
.ready
= check_all_headers();
4751 void tagcache_reverse_scan(void)
4753 logf("Checking for deleted files");
4754 check_deleted_files();
4758 bool tagcache_is_initialized(void)
4760 return tc_stat
.initialized
;
4762 bool tagcache_is_fully_initialized(void)
4764 return tc_stat
.readyvalid
;
4766 bool tagcache_is_usable(void)
4768 return tc_stat
.initialized
&& tc_stat
.ready
;
4770 int tagcache_get_commit_step(void)
4772 return tc_stat
.commit_step
;
4774 int tagcache_get_max_commit_step(void)
4776 return (int)(SORTED_TAGS_COUNT
)+1;