Revamp status item handling.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <dirent.h> /* readdir() */
10 #include <osl.h>
11 #include "para.h"
12 #include "error.h"
13 #include "string.h"
14 #include <sys/mman.h>
15 #include <fnmatch.h>
16 #include <sys/shm.h>
17
18 #include "afh.h"
19 #include "afs.h"
20 #include "net.h"
21 #include "vss.h"
22 #include "fd.h"
23 #include "ipc.h"
24 #include "portable_io.h"
25
26 static struct osl_table *audio_file_table;
27 static char *status_items;
28 static char *parser_friendly_status_items;
29
30 /** The different sorting methods of the ls command. */
31 enum ls_sorting_method {
32 /** -sp (default) */
33 LS_SORT_BY_PATH,
34 /** -ss */
35 LS_SORT_BY_SCORE,
36 /** -sl */
37 LS_SORT_BY_LAST_PLAYED,
38 /** -sn */
39 LS_SORT_BY_NUM_PLAYED,
40 /** -sf */
41 LS_SORT_BY_FREQUENCY,
42 /** -sc */
43 LS_SORT_BY_CHANNELS,
44 /** -si */
45 LS_SORT_BY_IMAGE_ID,
46 /** -sy */
47 LS_SORT_BY_LYRICS_ID,
48 /** -sb */
49 LS_SORT_BY_BITRATE,
50 /** -sd */
51 LS_SORT_BY_DURATION,
52 /** -sa */
53 LS_SORT_BY_AUDIO_FORMAT,
54 /** -sh */
55 LS_SORT_BY_HASH,
56 };
57
58 /** The different listing modes of the ls command. */
59 enum ls_listing_mode {
60 /** Default listing mode. */
61 LS_MODE_SHORT,
62 /** -l or -ll */
63 LS_MODE_LONG,
64 /** -lv */
65 LS_MODE_VERBOSE,
66 /** -lm */
67 LS_MODE_MBOX,
68 /** -lc */
69 LS_MODE_CHUNKS,
70 /** -lp */
71 LS_MODE_PARSER,
72 };
73
74 /** The flags accepted by the ls command. */
75 enum ls_flags {
76 /** -p */
77 LS_FLAG_FULL_PATH = 1,
78 /** -a */
79 LS_FLAG_ADMISSIBLE_ONLY = 2,
80 /** -r */
81 LS_FLAG_REVERSE = 4,
82 };
83
84 /**
85 * The size of the individual output fields of the ls command.
86 *
87 * These depend on the actual content being listed. If, for instance only files
88 * with duration less than an hour are being listed, then the duration with is
89 * made smaller because then the duration is listed as mm:ss rather than
90 * hh:mm:ss.
91 */
92 struct ls_widths {
93 /** size of the score field. */
94 unsigned short score_width;
95 /** size of the image id field. */
96 unsigned short image_id_width;
97 /** size of the lyrics id field. */
98 unsigned short lyrics_id_width;
99 /** size of the bitrate field. */
100 unsigned short bitrate_width;
101 /** size of the frequency field. */
102 unsigned short frequency_width;
103 /** size of the duration field. */
104 unsigned short duration_width;
105 /** size of the num played field. */
106 unsigned short num_played_width;
107 /** size of the amp field. */
108 unsigned short amp_width;
109 };
110
111 /** Data passed from the ls command handler to its callback function. */
112 struct ls_options {
113 /** The given command line flags. */
114 unsigned flags;
115 /** The sorting method given at the command line. */
116 enum ls_sorting_method sorting;
117 /** The given listing mode (short, long, verbose, mbox). */
118 enum ls_listing_mode mode;
119 /** The arguments passed to the ls command. */
120 char **patterns;
121 /** Number of non-option arguments. */
122 int num_patterns;
123 /** Used for long listing mode to align the output fields. */
124 struct ls_widths widths;
125 /** Size of the \a data array. */
126 uint32_t array_size;
127 /** Number of used entries in the data array. */
128 uint32_t num_matching_paths;
129 /** Array of matching entries. */
130 struct ls_data *data;
131 /** Used to sort the array. */
132 struct ls_data **data_ptr;
133 };
134
135 /**
136 * Describes the layout of the mmapped-afs info struct.
137 *
138 * \sa struct afs_info.
139 */
140 enum afsi_offsets {
141 /** Where .last_played is stored. */
142 AFSI_LAST_PLAYED_OFFSET = 0,
143 /** Storage position of the attributes bitmap. */
144 AFSI_ATTRIBUTES_OFFSET = 8,
145 /** Storage position of the .num_played field. */
146 AFSI_NUM_PLAYED_OFFSET = 16,
147 /** Storage position of the .image_id field. */
148 AFSI_IMAGE_ID_OFFSET = 20,
149 /** Storage position of the .lyrics_id field. */
150 AFSI_LYRICS_ID_OFFSET = 24,
151 /** Storage position of the .audio_format_id field. */
152 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
153 /** Storage position of the amplification field. */
154 AFSI_AMP_OFFSET = 29,
155 /** 2 bytes reserved space for future usage. */
156 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
157 /** On-disk storage space needed. */
158 AFSI_SIZE = 32
159 };
160
161 /**
162 * Convert a struct afs_info to an osl object.
163 *
164 * \param afsi Pointer to the audio file info to be converted.
165 * \param obj Result pointer.
166 *
167 * \sa load_afsi().
168 */
169 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
170 {
171 char *buf = obj->data;
172
173 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
174 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
175 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
176 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
177 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
178 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
179 afsi->audio_format_id);
180 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
181 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
182 }
183
184 /**
185 * Get the audio file selector info struct stored in an osl object.
186 *
187 * \param afsi Points to the audio_file info structure to be filled in.
188 * \param obj The osl object holding the data.
189 *
190 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
191 *
192 * \sa save_afsi().
193 */
194 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
195 {
196 char *buf = obj->data;
197 if (obj->size < AFSI_SIZE)
198 return -E_BAD_AFSI;
199 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
200 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
201 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
202 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
203 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
204 afsi->audio_format_id = read_u8(buf +
205 AFSI_AUDIO_FORMAT_ID_OFFSET);
206 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
207 return 1;
208 }
209
210 /** The columns of the audio file table. */
211 enum audio_file_table_columns {
212 /** The hash on the content of the audio file. */
213 AFTCOL_HASH,
214 /** The full path in the filesystem. */
215 AFTCOL_PATH,
216 /** The audio file selector info. */
217 AFTCOL_AFSI,
218 /** The audio format handler info. */
219 AFTCOL_AFHI,
220 /** The chunk table info and the chunk table of the audio file. */
221 AFTCOL_CHUNKS,
222 /** The number of columns of this table. */
223 NUM_AFT_COLUMNS
224 };
225
226 /**
227 * Compare two osl objects pointing to hash values.
228 *
229 * \param obj1 Pointer to the first hash object.
230 * \param obj2 Pointer to the second hash object.
231 *
232 * \return The values required for an osl compare function.
233 *
234 * \sa osl_compare_func, uint32_compare().
235 */
236 int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
237 {
238 return hash_compare((HASH_TYPE *)obj1->data, (HASH_TYPE *)obj2->data);
239 }
240
241 static struct osl_column_description aft_cols[] = {
242 [AFTCOL_HASH] = {
243 .storage_type = OSL_MAPPED_STORAGE,
244 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
245 .name = "hash",
246 .compare_function = aft_hash_compare,
247 .data_size = HASH_SIZE
248 },
249 [AFTCOL_PATH] = {
250 .storage_type = OSL_MAPPED_STORAGE,
251 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
252 .name = "path",
253 .compare_function = string_compare,
254 },
255 [AFTCOL_AFSI] = {
256 .storage_type = OSL_MAPPED_STORAGE,
257 .storage_flags = OSL_FIXED_SIZE,
258 .name = "afs_info",
259 .data_size = AFSI_SIZE
260 },
261 [AFTCOL_AFHI] = {
262 .storage_type = OSL_MAPPED_STORAGE,
263 .name = "afh_info",
264 },
265 [AFTCOL_CHUNKS] = {
266 .storage_type = OSL_DISK_STORAGE,
267 .name = "chunks",
268 }
269 };
270
271 static struct osl_table_description audio_file_table_desc = {
272 .name = "audio_files",
273 .num_columns = NUM_AFT_COLUMNS,
274 .flags = OSL_LARGE_TABLE,
275 .column_descriptions = aft_cols
276 };
277
278 /* We don't want * dot or dot-dot anywhere. */
279 static int verify_dotfile(const char *rest)
280 {
281 /*
282 * The first character was '.', but that has already been discarded, we
283 * now test the rest.
284 */
285 switch (*rest) {
286 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
287 return -1;
288 case '.': /* path start with /foo/.. */
289 if (rest[1] == '\0' || rest[1] == '/')
290 return -1; /* /foo/.. or /foo/../bar are not ok */
291 /* /foo/..bar is ok */
292 }
293 return 1;
294 }
295
296 /*
297 * We fundamentally don't like some paths: We don't want double slashes or
298 * slashes at the end that can make pathnames ambiguous.
299 */
300 static int verify_path(const char *orig_path, char **resolved_path)
301 {
302 char c;
303 size_t len;
304 char *path;
305
306 if (*orig_path != '/') /* we only accept absolute paths */
307 return -E_BAD_PATH;
308 len = strlen(orig_path);
309 *resolved_path = para_strdup(orig_path);
310 path = *resolved_path;
311 while (len > 1 && path[--len] == '/')
312 path[len] = '\0'; /* remove slash at the end */
313 c = *path++;
314 while (c) {
315 if (c == '/') {
316 c = *path++;
317 switch (c) {
318 case '/': /* double slash */
319 goto bad_path;
320 case '.':
321 if (verify_dotfile(path) < 0)
322 goto bad_path;
323 default:
324 continue;
325 }
326 }
327 c = *path++;
328 }
329 return 1;
330 bad_path:
331 free(*resolved_path);
332 return -E_BAD_PATH;
333 }
334
335 /** The on-disk layout of a afhi struct. */
336 enum afhi_offsets {
337 /** Where the number of seconds is stored. */
338 AFHI_SECONDS_TOTAL_OFFSET = 0,
339 /** Position of the bitrate. */
340 AFHI_BITRATE_OFFSET = 4,
341 /** Position of the frequency. */
342 AFHI_FREQUENCY_OFFSET = 8,
343 /** Location of the audio file header. */
344 AFHI_HEADER_OFFSET_OFFSET = 12,
345 /* Length of the audio file header. Zero means: No header. */
346 AFHI_HEADER_LEN_OFFSET = 16,
347 /** The total number of chunks (4 bytes). */
348 CHUNKS_TOTAL_OFFSET = 20,
349 /** The length of the audio file header (4 bytes). */
350 HEADER_LEN_OFFSET = 24,
351 /** The start of the audio file header (4 bytes). */
352 HEADER_OFFSET_OFFSET = 28,
353 /** The seconds part of the chunk time (4 bytes). */
354 CHUNK_TV_TV_SEC_OFFSET = 32,
355 /** The microseconds part of the chunk time (4 bytes). */
356 CHUNK_TV_TV_USEC_OFFSET = 36,
357 /** Number of channels is stored here. (1 byte) */
358 AFHI_CHANNELS_OFFSET = 40,
359 /** The tag info position. */
360 AFHI_INFO_STRING_OFFSET = 41,
361 /** Minimal on-disk size of a valid afhi struct. */
362 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
363 };
364
365 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
366 {
367 if (!afhi)
368 return 0;
369 return MIN_AFHI_SIZE
370 + strlen(afhi->techinfo)
371 + strlen(afhi->tags.artist)
372 + strlen(afhi->tags.title)
373 + strlen(afhi->tags.year)
374 + strlen(afhi->tags.album)
375 + strlen(afhi->tags.comment);
376 }
377
378 static void save_afhi(struct afh_info *afhi, char *buf)
379 {
380 char *p;
381
382 if (!afhi)
383 return;
384 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
385 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
386 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
387 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
388 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
389 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
390 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
391 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
392 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
393 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
394 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
395 p = buf + AFHI_INFO_STRING_OFFSET;
396 /* The sprintf's below are OK as our caller made sure that buf is large enough */
397 p += sprintf(p, "%s", afhi->techinfo) + 1;
398 p += sprintf(p, "%s", afhi->tags.artist) + 1;
399 p += sprintf(p, "%s", afhi->tags.title) + 1;
400 p += sprintf(p, "%s", afhi->tags.year) + 1;
401 p += sprintf(p, "%s", afhi->tags.album) + 1;
402 sprintf(p, "%s", afhi->tags.comment);
403 }
404
405 static void load_afhi(const char *buf, struct afh_info *afhi)
406 {
407 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
408 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
409 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
410 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
411 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
412 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
413 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
414 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
415 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
416 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
417 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
418 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
419 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
420 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
421 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
422 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
423 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
424 }
425
426 static unsigned sizeof_chunk_table(struct afh_info *afhi)
427 {
428 if (!afhi)
429 return 0;
430 return 4 * (afhi->chunks_total + 1);
431 }
432
433 static void save_chunk_table(struct afh_info *afhi, char *buf)
434 {
435 int i;
436
437 for (i = 0; i <= afhi->chunks_total; i++)
438 write_u32(buf + 4 * i, afhi->chunk_table[i]);
439 }
440
441 static void load_chunk_table(struct afh_info *afhi, char *buf)
442 {
443 int i;
444
445 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
446 for (i = 0; i <= afhi->chunks_total; i++)
447 afhi->chunk_table[i] = read_u32(buf + 4 * i);
448 }
449
450 /**
451 * Get the row of the audio file table corresponding to the given path.
452 *
453 * \param path The full path of the audio file.
454 * \param row Result pointer.
455 *
456 * \return Standard.
457 */
458 int aft_get_row_of_path(const char *path, struct osl_row **row)
459 {
460 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
461
462 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
463 }
464
465 /**
466 * Get the row of the audio file table corresponding to the given hash value.
467 *
468 * \param hash The hash value of the desired audio file.
469 * \param row Result pointer.
470 *
471 * \return Standard.
472 */
473 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
474 {
475 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
476 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
477 }
478
479 /**
480 * Get the osl object holding the audio file selector info of a row.
481 *
482 * \param row Pointer to a row in the audio file table.
483 * \param obj Result pointer.
484 *
485 * \return Standard.
486 */
487 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
488 {
489 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
490 }
491
492 /**
493 * Get the osl object holding the audio file selector info, given a path.
494 *
495 *
496 * \param path The full path of the audio file.
497 * \param obj Result pointer.
498 *
499 * \return Positive on success, negative on errors.
500 */
501 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
502 {
503 struct osl_row *row;
504 int ret = aft_get_row_of_path(path, &row);
505 if (ret < 0)
506 return ret;
507 return get_afsi_object_of_row(row, obj);
508 }
509
510 /**
511 * Get the audio file selector info, given a row of the audio file table.
512 *
513 * \param row Pointer to a row in the audio file table.
514 * \param afsi Result pointer.
515 *
516 * \return Positive on success, negative on errors.
517 */
518 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
519 {
520 struct osl_object obj;
521 int ret = get_afsi_object_of_row(row, &obj);
522 if (ret < 0)
523 return ret;
524 return load_afsi(afsi, &obj);
525 }
526
527 /**
528 * Get the audio file selector info, given the path of an audio table.
529 *
530 * \param path The full path of the audio file.
531 * \param afsi Result pointer.
532 *
533 * \return Positive on success, negative on errors.
534 */
535 int get_afsi_of_path(const char *path, struct afs_info *afsi)
536 {
537 struct osl_object obj;
538 int ret = get_afsi_object_of_path(path, &obj);
539 if (ret < 0)
540 return ret;
541 return load_afsi(afsi, &obj);
542 }
543
544 /**
545 * Get the path of an audio file, given a row of the audio file table.
546 *
547 * \param row Pointer to a row in the audio file table.
548 * \param path Result pointer.
549 *
550 * The result is a pointer to mmapped data. The caller must not attempt
551 * to free it.
552 *
553 * \return Standard.
554 */
555 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
556 {
557 struct osl_object path_obj;
558 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
559 &path_obj));
560 if (ret < 0)
561 return ret;
562 *path = path_obj.data;
563 return 1;
564 }
565
566 /**
567 * Get the object containing the hash value of an audio file, given a row.
568 *
569 * \param row Pointer to a row of the audio file table.
570 * \param obj Result pointer.
571 *
572 * \return The return value of the underlying call to osl_get_object().
573 *
574 * \sa get_hash_of_row().
575 */
576 static int get_hash_object_of_aft_row(const struct osl_row *row,
577 struct osl_object *obj)
578 {
579 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
580 }
581
582 /**
583 * Get the hash value of an audio file, given a row of the audio file table.
584 *
585 * \param row Pointer to a row of the audio file table.
586 * \param hash Result pointer.
587 *
588 * \a hash points to mapped data and must not be freed by the caller.
589 *
590 * \return The return value of the underlying call to
591 * get_hash_object_of_aft_row().
592 */
593 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
594 {
595 struct osl_object obj;
596 int ret = get_hash_object_of_aft_row(row, &obj);
597
598 if (ret < 0)
599 return ret;
600 *hash = obj.data;
601 return 1;
602 }
603
604 /**
605 * Get the audio format handler info, given a row of the audio file table.
606 *
607 * \param row Pointer to a row of the audio file table.
608 * \param afhi Result pointer.
609 *
610 * \return The return value of the underlying call to osl_get_object().
611 *
612 * \sa get_chunk_table_of_row().
613 */
614 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
615 {
616 struct osl_object obj;
617 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
618 &obj));
619 if (ret < 0)
620 return ret;
621 load_afhi(obj.data, afhi);
622 return 1;
623 }
624
625 /* returns shmid on success */
626 static int save_afd(struct audio_file_data *afd)
627 {
628 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
629 int shmid, ret = shm_new(size);
630 void *shm_afd;
631 char *buf;
632
633 if (ret < 0)
634 return ret;
635 shmid = ret;
636 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
637 if (ret < 0)
638 goto err;
639 *(struct audio_file_data *)shm_afd = *afd;
640 buf = shm_afd;
641 buf += sizeof(*afd);
642 save_chunk_table(&afd->afhi, buf);
643 shm_detach(shm_afd);
644 return shmid;
645 err:
646 shm_destroy(shmid);
647 return ret;
648 }
649
650 int load_afd(int shmid, struct audio_file_data *afd)
651 {
652 void *shm_afd;
653 char *buf;
654 int ret;
655
656 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
657 if (ret < 0)
658 return ret;
659 *afd = *(struct audio_file_data *)shm_afd;
660 buf = shm_afd;
661 buf += sizeof(*afd);
662 load_chunk_table(&afd->afhi, buf);
663 shm_detach(shm_afd);
664 return 1;
665 }
666
667 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
668 time_t current_time, enum ls_listing_mode lm)
669 {
670 struct tm t;
671
672 if (!localtime_r((time_t *)seconds, &t))
673 return -E_LOCALTIME;
674 if (lm == LS_MODE_MBOX) {
675 if (!strftime(buf, size, "%c", &t))
676 return -E_STRFTIME;
677 return 1;
678 }
679 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
680 if (!strftime(buf, size, "%b %e %k:%M", &t))
681 return -E_STRFTIME;
682 return 1;
683 }
684 if (!strftime(buf, size, "%b %e %Y", &t))
685 return -E_STRFTIME;
686 return 1;
687 }
688
689 /** Compute the number of (decimal) digits of a number. */
690 #define GET_NUM_DIGITS(x, num) { \
691 typeof((x)) _tmp = PARA_ABS(x); \
692 *num = 1; \
693 if ((_tmp)) \
694 while ((_tmp) > 9) { \
695 (_tmp) /= 10; \
696 (*num)++; \
697 } \
698 }
699
700 static short unsigned get_duration_width(int seconds)
701 {
702 short unsigned width;
703 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
704
705 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
706 return 4 + (mins > 9);
707 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
708 GET_NUM_DIGITS(hours, &width);
709 return width + 6;
710 }
711
712 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
713 {
714 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
715 short unsigned max_width;
716
717 if (!hours) { /* m:ss or mm:ss */
718 max_width = opts->mode == LS_MODE_LONG?
719 opts->widths.duration_width : 4;
720 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
721 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
722 max_width = opts->mode == LS_MODE_LONG?
723 opts->widths.duration_width : 7;
724 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
725 seconds % 60);
726 }
727 }
728
729
730 static int write_attribute_items(struct para_buffer *b,
731 const char *att_bitmap, struct afs_info *afsi)
732 {
733 char *att_text;
734 int ret;
735
736 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
737 if (ret < 0)
738 return ret;
739 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
740 if (ret < 0)
741 return ret;
742 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
743 free(att_text);
744 return ret;
745 }
746
747 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
748 {
749 char *lyrics_name;
750 int ret;
751
752 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
753 if (ret < 0)
754 return ret;
755 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
756 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
757 lyrics_name : "(none)");
758 }
759
760 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
761 {
762 char *image_name;
763 int ret;
764
765 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
766 if (ret < 0)
767 return ret;
768 img_get_name_by_id(afsi->image_id, &image_name);
769 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
770 image_name : "(none)");
771 }
772
773 static int write_filename_items(struct para_buffer *b, const char *path,
774 unsigned flags)
775 {
776 char *val;
777 int ret;
778
779 if (!(flags & LS_FLAG_FULL_PATH))
780 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
781 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
782 if (ret < 0)
783 return ret;
784 val = para_basename(path);
785 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
786 if (ret < 0)
787 return ret;
788 val = para_dirname(path);
789 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
790 free(val);
791 return ret;
792 }
793
794 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
795 {
796 struct osl_object chunk_table_obj;
797 struct osl_row *aft_row;
798 int ret, i;
799 char *buf;
800
801 ret = aft_get_row_of_hash(d->hash, &aft_row);
802 if (ret < 0)
803 return ret;
804 ret = osl_open_disk_object(audio_file_table, aft_row,
805 AFTCOL_CHUNKS, &chunk_table_obj);
806 if (ret < 0)
807 return ret;
808 ret = para_printf(b, "%s\n"
809 "chunk_time: %lu:%lu\nchunk_offsets: ",
810 d->path,
811 (long unsigned) d->afhi.chunk_tv.tv_sec,
812 (long unsigned) d->afhi.chunk_tv.tv_usec
813 );
814 if (ret < 0)
815 goto out;
816 buf = chunk_table_obj.data;
817 for (i = 0; i <= d->afhi.chunks_total; i++) {
818 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
819 if (ret < 0)
820 goto out;
821 }
822 ret = para_printf(b, "\n");
823 out:
824 osl_close_disk_object(&chunk_table_obj);
825 return ret;
826 }
827
828 static int write_score(struct para_buffer *b, struct ls_data *d,
829 struct ls_options *opts)
830 {
831 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
832 return 0;
833 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
834 }
835
836 static int print_list_item(struct ls_data *d, struct ls_options *opts,
837 struct para_buffer *b, time_t current_time)
838 {
839 int ret;
840 char att_buf[65];
841 char last_played_time[30];
842 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
843 struct afs_info *afsi = &d->afsi;
844 struct afh_info *afhi = &d->afhi;
845 char asc_hash[2 * HASH_SIZE + 1];
846
847 if (opts->mode == LS_MODE_SHORT) {
848 ret = para_printf(b, "%s\n", d->path);
849 goto out;
850 }
851 if (opts->mode == LS_MODE_CHUNKS) {
852 ret = print_chunk_table(d, b);
853 goto out;
854 }
855 get_attribute_bitmap(&afsi->attributes, att_buf);
856 ret = get_local_time(&afsi->last_played, last_played_time,
857 sizeof(last_played_time), current_time, opts->mode);
858 if (ret < 0)
859 goto out;
860 get_duration_buf(afhi->seconds_total, duration_buf, opts);
861 if (opts->mode == LS_MODE_LONG) {
862 struct ls_widths *w = &opts->widths;
863 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
864 ret = para_printf(b, "%*li ",
865 opts->widths.score_width, d->score);
866 if (ret < 0)
867 goto out;
868 }
869 ret = para_printf(b,
870 "%s " /* attributes */
871 "%*u " /* amp */
872 "%*d " /* image_id */
873 "%*d " /* lyrics_id */
874 "%*d " /* bitrate */
875 "%s " /* audio format */
876 "%*d " /* frequency */
877 "%d " /* channels */
878 "%s " /* duration */
879 "%*d " /* num_played */
880 "%s " /* last_played */
881 "%s\n", /* path */
882 att_buf,
883 w->amp_width, afsi->amp,
884 w->image_id_width, afsi->image_id,
885 w->lyrics_id_width, afsi->lyrics_id,
886 w->bitrate_width, afhi->bitrate,
887 audio_format_name(afsi->audio_format_id),
888 w->frequency_width, afhi->frequency,
889 afhi->channels,
890 duration_buf,
891 w->num_played_width, afsi->num_played,
892 last_played_time,
893 d->path
894 );
895 goto out;
896 }
897 if (opts->mode == LS_MODE_MBOX) {
898 const char *bn = para_basename(d->path);
899 ret = para_printf(b,
900 "From foo@localhost %s\n"
901 "Received: from\nTo: bar\nFrom: a\n"
902 "Subject: %s\n\n",
903 last_played_time,
904 bn? bn : "?");
905 if (ret < 0)
906 goto out;
907 }
908 ret = write_filename_items(b, d->path, opts->flags);
909 if (ret < 0)
910 goto out;
911 ret = write_score(b, d, opts);
912 if (ret < 0)
913 goto out;
914 ret = write_attribute_items(b, att_buf, afsi);
915 if (ret < 0)
916 goto out;
917 ret = write_image_items(b, afsi);
918 if (ret < 0)
919 goto out;
920 ret = write_lyrics_items(b, afsi);
921 if (ret < 0)
922 goto out;
923 hash_to_asc(d->hash, asc_hash);
924 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
925 if (ret < 0)
926 goto out;
927 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
928 if (ret < 0)
929 goto out;
930 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
931 audio_format_name(afsi->audio_format_id));
932 if (ret < 0)
933 goto out;
934 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
935 if (ret < 0)
936 goto out;
937 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
938 if (ret < 0)
939 goto out;
940 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
941 if (ret < 0)
942 goto out;
943 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
944 afhi->seconds_total);
945 if (ret < 0)
946 goto out;
947 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
948 if (ret < 0)
949 goto out;
950 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
951 if (ret < 0)
952 goto out;
953 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
954 if (ret < 0)
955 goto out;
956 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
957 tv2ms(&afhi->chunk_tv));
958 if (ret < 0)
959 goto out;
960 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
961 afhi->chunks_total);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
965 if (ret < 0)
966 goto out;
967 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
968 if (ret < 0)
969 goto out;
970 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
971 if (ret < 0)
972 goto out;
973 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
974 if (ret < 0)
975 goto out;
976 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
977 if (ret < 0)
978 goto out;
979 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
980 if (ret < 0)
981 goto out;
982 if (opts->mode == LS_MODE_MBOX) {
983 struct osl_object lyrics_def;
984 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
985 if (lyrics_def.data) {
986 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
987 (char *)lyrics_def.data);
988 osl_close_disk_object(&lyrics_def);
989 }
990 }
991 out:
992 return ret;
993 }
994
995 static int make_status_items(struct audio_file_data *afd,
996 struct afs_info *afsi, char *path, long score,
997 HASH_TYPE *hash)
998 {
999 struct ls_data d = {
1000 .afhi = afd->afhi,
1001 .afsi = *afsi,
1002 .path = path,
1003 .score = score,
1004 .hash = hash
1005 };
1006 struct ls_options opts = {
1007 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1008 .mode = LS_MODE_VERBOSE,
1009 };
1010 struct para_buffer pb = {.max_size = SHMMAX - 1};
1011 time_t current_time;
1012 int ret;
1013
1014 time(&current_time);
1015 ret = print_list_item(&d, &opts, &pb, current_time);
1016 if (ret < 0)
1017 return ret;
1018 free(status_items);
1019 status_items = pb.buf;
1020 memset(&pb, 0, sizeof(pb));
1021 pb.max_size = SHMMAX - 1;
1022 pb.flags = PBF_SIZE_PREFIX;
1023 ret = print_list_item(&d, &opts, &pb, current_time);
1024 if (ret < 0) {
1025 free(status_items);
1026 status_items = NULL;
1027 return ret;
1028 }
1029 free(parser_friendly_status_items);
1030 parser_friendly_status_items = pb.buf;
1031 return 1;
1032 }
1033
1034 /**
1035 * Mmap the given audio file and update statistics.
1036 *
1037 * \param aft_row Determines the audio file to be opened and updated.
1038 * \param score The score of the audio file.
1039 * \param afd Result pointer.
1040 *
1041 * On success, the numplayed field of the audio file selector info is increased
1042 * and the lastplayed time is set to the current time. Finally, the score of
1043 * the audio file is updated.
1044 *
1045 * \return Positive shmid on success, negative on errors.
1046 */
1047 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1048 struct audio_file_data *afd)
1049 {
1050 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1051 struct osl_object afsi_obj;
1052 struct afs_info old_afsi, new_afsi;
1053 int ret = get_hash_of_row(aft_row, &aft_hash);
1054 struct afsi_change_event_data aced;
1055 struct osl_object map, chunk_table_obj;
1056 char *path;
1057
1058 if (ret < 0)
1059 return ret;
1060 ret = get_audio_file_path_of_row(aft_row, &path);
1061 if (ret < 0)
1062 return ret;
1063 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1064 if (ret < 0)
1065 return ret;
1066 ret = load_afsi(&old_afsi, &afsi_obj);
1067 if (ret < 0)
1068 return ret;
1069 ret = get_afhi_of_row(aft_row, &afd->afhi);
1070 if (ret < 0)
1071 return ret;
1072 afd->afhi.chunk_table = NULL;
1073 ret = osl_open_disk_object(audio_file_table, aft_row,
1074 AFTCOL_CHUNKS, &chunk_table_obj);
1075 if (ret < 0)
1076 goto err;
1077 ret = mmap_full_file(path, O_RDONLY, &map.data,
1078 &map.size, &afd->fd);
1079 if (ret < 0)
1080 goto err;
1081 hash_function(map.data, map.size, file_hash);
1082 ret = hash_compare(file_hash, aft_hash);
1083 para_munmap(map.data, map.size);
1084 if (ret) {
1085 ret = -E_HASH_MISMATCH;
1086 goto err;
1087 }
1088 new_afsi = old_afsi;
1089 new_afsi.num_played++;
1090 new_afsi.last_played = time(NULL);
1091 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1092
1093 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1094 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1095 if (ret < 0)
1096 goto err;
1097 aced.aft_row = aft_row;
1098 aced.old_afsi = &old_afsi;
1099 afs_event(AFSI_CHANGE, NULL, &aced);
1100 ret = save_afd(afd);
1101 err:
1102 free(afd->afhi.chunk_table);
1103 osl_close_disk_object(&chunk_table_obj);
1104 return ret;
1105 }
1106
1107 static int ls_audio_format_compare(const void *a, const void *b)
1108 {
1109 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1110 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1111 }
1112
1113 static int ls_duration_compare(const void *a, const void *b)
1114 {
1115 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1116 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1117 }
1118
1119 static int ls_bitrate_compare(const void *a, const void *b)
1120 {
1121 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1122 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1123 }
1124
1125 static int ls_lyrics_id_compare(const void *a, const void *b)
1126 {
1127 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1128 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1129 }
1130
1131 static int ls_image_id_compare(const void *a, const void *b)
1132 {
1133 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1134 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1135 }
1136
1137 static int ls_channels_compare(const void *a, const void *b)
1138 {
1139 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1140 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1141 }
1142
1143 static int ls_frequency_compare(const void *a, const void *b)
1144 {
1145 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1146 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1147 }
1148
1149 static int ls_num_played_compare(const void *a, const void *b)
1150 {
1151 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1152 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1153 }
1154
1155 static int ls_last_played_compare(const void *a, const void *b)
1156 {
1157 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1158 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1159 }
1160
1161 static int ls_score_compare(const void *a, const void *b)
1162 {
1163 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1164 return NUM_COMPARE(d1->score, d2->score);
1165 }
1166
1167 static int ls_path_compare(const void *a, const void *b)
1168 {
1169 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1170 return strcmp(d1->path, d2->path);
1171 }
1172
1173 static int sort_matching_paths(struct ls_options *options)
1174 {
1175 size_t nmemb = options->num_matching_paths;
1176 size_t size = sizeof(*options->data_ptr);
1177 int (*compar)(const void *, const void *);
1178 int i;
1179
1180 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1181 for (i = 0; i < nmemb; i++)
1182 options->data_ptr[i] = options->data + i;
1183
1184 /* In these cases the array is already sorted */
1185 if (options->sorting == LS_SORT_BY_PATH
1186 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1187 && (options->flags & LS_FLAG_FULL_PATH))
1188 return 1;
1189 if (options->sorting == LS_SORT_BY_SCORE &&
1190 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1191 return 1;
1192
1193 switch (options->sorting) {
1194 case LS_SORT_BY_PATH:
1195 compar = ls_path_compare; break;
1196 case LS_SORT_BY_SCORE:
1197 compar = ls_score_compare; break;
1198 case LS_SORT_BY_LAST_PLAYED:
1199 compar = ls_last_played_compare; break;
1200 case LS_SORT_BY_NUM_PLAYED:
1201 compar = ls_num_played_compare; break;
1202 case LS_SORT_BY_FREQUENCY:
1203 compar = ls_frequency_compare; break;
1204 case LS_SORT_BY_CHANNELS:
1205 compar = ls_channels_compare; break;
1206 case LS_SORT_BY_IMAGE_ID:
1207 compar = ls_image_id_compare; break;
1208 case LS_SORT_BY_LYRICS_ID:
1209 compar = ls_lyrics_id_compare; break;
1210 case LS_SORT_BY_BITRATE:
1211 compar = ls_bitrate_compare; break;
1212 case LS_SORT_BY_DURATION:
1213 compar = ls_duration_compare; break;
1214 case LS_SORT_BY_AUDIO_FORMAT:
1215 compar = ls_audio_format_compare; break;
1216 default:
1217 return -E_BAD_SORT;
1218 }
1219 qsort(options->data_ptr, nmemb, size, compar);
1220 return 1;
1221 }
1222
1223 /* row is either an aft_row or a row of the score table */
1224 /* TODO: Only compute widths if we need them */
1225 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1226 {
1227 int ret, i;
1228 struct ls_options *options = ls_opts;
1229 struct ls_data *d;
1230 struct ls_widths *w;
1231 unsigned short num_digits;
1232 unsigned tmp;
1233 struct osl_row *aft_row;
1234 long score;
1235 char *path;
1236
1237 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1238 ret = get_score_and_aft_row(row, &score, &aft_row);
1239 if (ret < 0)
1240 return ret;
1241 } else
1242 aft_row = row;
1243 ret = get_audio_file_path_of_row(aft_row, &path);
1244 if (ret < 0)
1245 return ret;
1246 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1247 char *p = strrchr(path, '/');
1248 if (p)
1249 path = p + 1;
1250 }
1251 if (options->num_patterns) {
1252 for (i = 0; i < options->num_patterns; i++) {
1253 ret = fnmatch(options->patterns[i], path, 0);
1254 if (!ret)
1255 break;
1256 if (ret == FNM_NOMATCH)
1257 continue;
1258 return -E_FNMATCH;
1259 }
1260 if (i >= options->num_patterns) /* no match */
1261 return 1;
1262 }
1263 tmp = options->num_matching_paths++;
1264 if (options->num_matching_paths > options->array_size) {
1265 options->array_size++;
1266 options->array_size *= 2;
1267 options->data = para_realloc(options->data, options->array_size
1268 * sizeof(*options->data));
1269 }
1270 d = options->data + tmp;
1271 ret = get_afsi_of_row(aft_row, &d->afsi);
1272 if (ret < 0)
1273 return ret;
1274 ret = get_afhi_of_row(aft_row, &d->afhi);
1275 if (ret < 0)
1276 return ret;
1277 d->path = path;
1278 ret = get_hash_of_row(aft_row, &d->hash);
1279 if (ret < 0)
1280 goto err;
1281 w = &options->widths;
1282 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1283 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1284 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1285 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1286 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1287 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1288 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1289 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1290 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1291 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1292 /* get the number of chars to print this amount of time */
1293 num_digits = get_duration_width(d->afhi.seconds_total);
1294 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1295 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1296 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1297 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1298 GET_NUM_DIGITS(score, &num_digits);
1299 num_digits++; /* add one for the sign (space or "-") */
1300 w->score_width = PARA_MAX(w->score_width, num_digits);
1301 d->score = score;
1302 }
1303 return 1;
1304 err:
1305 return ret;
1306 }
1307
1308 static void com_ls_callback(int fd, const struct osl_object *query)
1309 {
1310 struct ls_options *opts = query->data;
1311 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1312 struct para_buffer b = {.max_size = SHMMAX,
1313 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1314 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1315 int i = 0, ret;
1316 time_t current_time;
1317
1318 if (opts->num_patterns) {
1319 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1320 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1321 opts->patterns[i] = p;
1322 p += strlen(p) + 1;
1323 }
1324 } else
1325 opts->patterns = NULL;
1326 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1327 ret = admissible_file_loop(opts, prepare_ls_row);
1328 else
1329 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1330 prepare_ls_row));
1331 if (ret < 0)
1332 goto out;
1333 if (!opts->num_matching_paths)
1334 goto out;
1335 ret = sort_matching_paths(opts);
1336 if (ret < 0)
1337 goto out;
1338 time(&current_time);
1339 if (opts->flags & LS_FLAG_REVERSE)
1340 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1341 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1342 if (ret < 0)
1343 goto out;
1344 }
1345 else
1346 for (i = 0; i < opts->num_matching_paths; i++) {
1347 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1348 if (ret < 0)
1349 goto out;
1350 }
1351 out:
1352 if (b.offset)
1353 pass_buffer_as_shm(b.buf, b.offset, &fd);
1354 free(b.buf);
1355 free(opts->data);
1356 free(opts->data_ptr);
1357 free(opts->patterns);
1358 }
1359
1360 /*
1361 * TODO: flags -h (sort by hash)
1362 */
1363 int com_ls(int fd, int argc, char * const * const argv)
1364 {
1365 int i, ret;
1366 unsigned flags = 0;
1367 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1368 enum ls_listing_mode mode = LS_MODE_SHORT;
1369 struct ls_options opts = {.patterns = NULL};
1370 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1371
1372 for (i = 1; i < argc; i++) {
1373 const char *arg = argv[i];
1374 if (arg[0] != '-')
1375 break;
1376 if (!strcmp(arg, "--")) {
1377 i++;
1378 break;
1379 }
1380 if (!strncmp(arg, "-l", 2)) {
1381 if (!*(arg + 2)) {
1382 mode = LS_MODE_LONG;
1383 continue;
1384 }
1385 if (*(arg + 3))
1386 return -E_AFT_SYNTAX;
1387 switch(*(arg + 2)) {
1388 case 's':
1389 mode = LS_MODE_SHORT;
1390 continue;
1391 case 'l':
1392 mode = LS_MODE_LONG;
1393 continue;
1394 case 'v':
1395 mode = LS_MODE_VERBOSE;
1396 continue;
1397 case 'm':
1398 mode = LS_MODE_MBOX;
1399 continue;
1400 case 'c':
1401 mode = LS_MODE_CHUNKS;
1402 continue;
1403 case 'p':
1404 mode = LS_MODE_PARSER;
1405 continue;
1406 default:
1407 return -E_AFT_SYNTAX;
1408 }
1409 }
1410 if (!strcmp(arg, "-p")) {
1411 flags |= LS_FLAG_FULL_PATH;
1412 continue;
1413 }
1414 if (!strcmp(arg, "-a")) {
1415 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1416 continue;
1417 }
1418 if (!strcmp(arg, "-r")) {
1419 flags |= LS_FLAG_REVERSE;
1420 continue;
1421 }
1422 if (!strncmp(arg, "-s", 2)) {
1423 if (!*(arg + 2) || *(arg + 3))
1424 return -E_AFT_SYNTAX;
1425 switch(*(arg + 2)) {
1426 case 'p':
1427 sort = LS_SORT_BY_PATH;
1428 continue;
1429 case 's': /* -ss implies -a */
1430 sort = LS_SORT_BY_SCORE;
1431 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1432 continue;
1433 case 'l':
1434 sort = LS_SORT_BY_LAST_PLAYED;
1435 continue;
1436 case 'n':
1437 sort = LS_SORT_BY_NUM_PLAYED;
1438 continue;
1439 case 'f':
1440 sort = LS_SORT_BY_FREQUENCY;
1441 continue;
1442 case 'c':
1443 sort = LS_SORT_BY_CHANNELS;
1444 continue;
1445 case 'i':
1446 sort = LS_SORT_BY_IMAGE_ID;
1447 continue;
1448 case 'y':
1449 sort = LS_SORT_BY_LYRICS_ID;
1450 continue;
1451 case 'b':
1452 sort = LS_SORT_BY_BITRATE;
1453 continue;
1454 case 'd':
1455 sort = LS_SORT_BY_DURATION;
1456 continue;
1457 case 'a':
1458 sort = LS_SORT_BY_AUDIO_FORMAT;
1459 continue;
1460 default:
1461 return -E_AFT_SYNTAX;
1462 }
1463 }
1464 return -E_AFT_SYNTAX;
1465 }
1466 opts.flags = flags;
1467 opts.sorting = sort;
1468 opts.mode = mode;
1469 opts.num_patterns = argc - i;
1470 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1471 argv + i, com_ls_callback, send_result, &fd);
1472 return ret;
1473 }
1474
1475 /**
1476 * Call the given function for each file in the audio file table.
1477 *
1478 * \param private_data An arbitrary data pointer, passed to \a func.
1479 * \param func The custom function to be called.
1480 *
1481 * \return Standard.
1482 */
1483 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1484 {
1485 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1486 func));
1487 }
1488
1489 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1490 {
1491 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1492 struct osl_row *row;
1493
1494 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1495 return row;
1496 }
1497
1498 /** The format of the data stored by save_audio_file_data(). */
1499 enum com_add_buffer_offsets {
1500 /** afhi (if present) starts here. */
1501 CAB_AFHI_OFFSET_POS = 0,
1502 /** Start of the chunk table (if present). */
1503 CAB_CHUNKS_OFFSET_POS = 2,
1504 /** Audio format id. */
1505 CAB_AUDIO_FORMAT_OFFSET = 4,
1506 /** Flags given to the add command. */
1507 CAB_FLAGS_OFFSET = 5,
1508 /** The hash of the audio file being added. */
1509 CAB_HASH_OFFSET = 9,
1510 /** Start of the path of the audio file. */
1511 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1512 };
1513
1514 /*
1515 * Store the given data to a single buffer. Doesn't need the audio file selector
1516 * info struct as the server knows it as well.
1517 *
1518 * It's OK to call this with afhi == NULL. In this case, the audio format
1519 * handler info won't be stored in the buffer.
1520 */
1521 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1522 struct afh_info *afhi, uint32_t flags,
1523 uint8_t audio_format_num, struct osl_object *obj)
1524 {
1525 size_t path_len = strlen(path) + 1;
1526 size_t afhi_size = sizeof_afhi_buf(afhi);
1527 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1528 + sizeof_chunk_table(afhi);
1529 char *buf = para_malloc(size);
1530 uint16_t pos;
1531
1532 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1533 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1534
1535 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1536 strcpy(buf + CAB_PATH_OFFSET, path);
1537
1538 pos = CAB_PATH_OFFSET + path_len;
1539 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1540 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1541 pos + afhi_size - 1);
1542 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1543 save_afhi(afhi, buf + pos);
1544
1545 pos += afhi_size;
1546 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1547 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1548 if (afhi)
1549 save_chunk_table(afhi, buf + pos);
1550 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1551 obj->data = buf;
1552 obj->size = size;
1553 }
1554
1555 /*
1556
1557 Overview of the add command.
1558
1559 Input: What was passed to the callback by the command handler.
1560 ~~~~~~
1561 HS: Hash sister. Whether an audio file with identical hash
1562 already exists in the osl database.
1563
1564 PB: Path brother. Whether a file with the given path exists
1565 in the table.
1566
1567 F: Force flag given. Whether add was called with -f.
1568
1569 output: Action performed by the callback.
1570 ~~~~~~~
1571 AFHI: Whether afhi and chunk table are computed and sent.
1572 ACTION: Table modifications to be done by the callback.
1573
1574 +----+----+---+------+---------------------------------------------------+
1575 | HS | PB | F | AFHI | ACTION
1576 +----+----+---+------+---------------------------------------------------+
1577 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1578 | | update path, keep afsi
1579 +----+----+---+------+---------------------------------------------------+
1580 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1581 | | otherwise: remove PB, HS: update path, keep afhi,
1582 | | afsi.
1583 +----+----+---+------+---------------------------------------------------+
1584 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1585 | | HS, keep afsi
1586 +----+----+---+------+---------------------------------------------------+
1587 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1588 +----+----+---+------+---------------------------------------------------+
1589 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1590 | | (force has no effect)
1591 +----+----+---+------+---------------------------------------------------+
1592 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1593 +----+----+---+------+---------------------------------------------------+
1594 | N | N | Y | Y | (new file) create new entry (force has no effect)
1595 +----+----+---+------+---------------------------------------------------+
1596 | N | N | N | Y | (new file) create new entry
1597 +----+----+---+------+---------------------------------------------------+
1598
1599 Notes:
1600
1601 afhi <=> force or no HS
1602 F => AFHI
1603
1604 */
1605
1606 /** Flags passed to the add command. */
1607 enum com_add_flags {
1608 /** Skip paths that exist already. */
1609 ADD_FLAG_LAZY = 1,
1610 /** Force adding. */
1611 ADD_FLAG_FORCE = 2,
1612 /** Print what is being done. */
1613 ADD_FLAG_VERBOSE = 4,
1614 /** Try to add files with unknown suffixes. */
1615 ADD_FLAG_ALL = 8,
1616 };
1617
1618 static void com_add_callback(int fd, const struct osl_object *query)
1619 {
1620 char *buf = query->data, *path;
1621 struct osl_row *pb, *aft_row;
1622 struct osl_row *hs;
1623 struct osl_object objs[NUM_AFT_COLUMNS];
1624 HASH_TYPE *hash;
1625 char asc[2 * HASH_SIZE + 1];
1626 int ret;
1627 char afsi_buf[AFSI_SIZE];
1628 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1629 struct afs_info default_afsi = {.last_played = 0};
1630 struct para_buffer msg = {.max_size = SHMMAX,
1631 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1632 uint16_t afhi_offset, chunks_offset;
1633
1634 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1635 hash_to_asc(hash, asc);;
1636 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1637 objs[AFTCOL_HASH].size = HASH_SIZE;
1638
1639 path = buf + CAB_PATH_OFFSET;
1640 objs[AFTCOL_PATH].data = path;
1641 objs[AFTCOL_PATH].size = strlen(path) + 1;
1642
1643 PARA_INFO_LOG("request to add %s\n", path);
1644 hs = find_hash_sister(hash);
1645 ret = aft_get_row_of_path(path, &pb);
1646 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1647 goto out;
1648 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1649 if (flags & ADD_FLAG_VERBOSE)
1650 ret = para_printf(&msg, "ignoring duplicate\n");
1651 else
1652 ret = 1;
1653 goto out;
1654 }
1655 if (hs && hs != pb) {
1656 struct osl_object obj;
1657 if (pb) { /* hs trumps pb, remove pb */
1658 if (flags & ADD_FLAG_VERBOSE) {
1659 ret = para_printf(&msg, "removing path brother\n");
1660 if (ret < 0)
1661 goto out;
1662 }
1663 ret = osl(osl_del_row(audio_file_table, pb));
1664 if (ret < 0)
1665 goto out;
1666 pb = NULL;
1667 }
1668 /* file rename, update hs' path */
1669 if (flags & ADD_FLAG_VERBOSE) {
1670 ret = osl(osl_get_object(audio_file_table, hs,
1671 AFTCOL_PATH, &obj));
1672 if (ret < 0)
1673 goto out;
1674 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1675 if (ret < 0)
1676 goto out;
1677 }
1678 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1679 &objs[AFTCOL_PATH]));
1680 if (ret < 0)
1681 goto out;
1682 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1683 if (!(flags & ADD_FLAG_FORCE))
1684 goto out;
1685 }
1686 /* no hs or force mode, child must have sent afhi */
1687 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1688 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1689
1690 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1691 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1692 ret = -E_NO_AFHI;
1693 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1694 goto out;
1695 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1696 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1697 if (pb && !hs) { /* update pb's hash */
1698 char old_asc[2 * HASH_SIZE + 1];
1699 HASH_TYPE *old_hash;
1700 ret = get_hash_of_row(pb, &old_hash);
1701 if (ret < 0)
1702 goto out;
1703 hash_to_asc(old_hash, old_asc);
1704 if (flags & ADD_FLAG_VERBOSE) {
1705 ret = para_printf(&msg, "file change: %s -> %s\n",
1706 old_asc, asc);
1707 if (ret < 0)
1708 goto out;
1709 }
1710 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1711 &objs[AFTCOL_HASH]);
1712 if (ret < 0)
1713 goto out;
1714 }
1715 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1716 struct osl_row *row = pb? pb : hs;
1717 /* update afhi and chunk_table */
1718 if (flags & ADD_FLAG_VERBOSE) {
1719 ret = para_printf(&msg, "updating afhi and chunk table\n");
1720 if (ret < 0)
1721 goto out;
1722 }
1723 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1724 &objs[AFTCOL_AFHI]));
1725 if (ret < 0)
1726 goto out;
1727 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1728 &objs[AFTCOL_CHUNKS]));
1729 if (ret < 0)
1730 goto out;
1731 afs_event(AFHI_CHANGE, &msg, row);
1732 goto out;
1733 }
1734 /* new entry, use default afsi */
1735 if (flags & ADD_FLAG_VERBOSE) {
1736 ret = para_printf(&msg, "new file\n");
1737 if (ret < 0)
1738 goto out;
1739 }
1740 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1741 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1742
1743 objs[AFTCOL_AFSI].data = &afsi_buf;
1744 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1745 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1746 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1747 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1748 out:
1749 if (ret < 0)
1750 para_printf(&msg, "%s\n", para_strerror(-ret));
1751 if (msg.offset)
1752 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1753 free(msg.buf);
1754 }
1755
1756 /** Used by com_add(). */
1757 struct private_add_data {
1758 /** The socket file descriptor. */
1759 int fd;
1760 /** The given add flags. */
1761 uint32_t flags;
1762 };
1763
1764 static void path_brother_callback(int fd, const struct osl_object *query)
1765 {
1766 char *path = query->data;
1767 struct osl_row *path_brother;
1768 int ret = aft_get_row_of_path(path, &path_brother);
1769 if (ret < 0)
1770 return;
1771 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1772 }
1773
1774 static void hash_sister_callback(int fd, const struct osl_object *query)
1775 {
1776 HASH_TYPE *hash = query->data;
1777 struct osl_row *hash_sister;
1778
1779 hash_sister = find_hash_sister(hash);
1780 if (!hash_sister)
1781 return;
1782 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1783 }
1784
1785 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1786 {
1787 struct osl_row **row = private;
1788 *row = result->data;
1789 return 1;
1790 }
1791
1792 static int add_one_audio_file(const char *path, void *private_data)
1793 {
1794 int ret, send_ret = 1, fd;
1795 uint8_t format_num = -1;
1796 struct private_add_data *pad = private_data;
1797 struct afh_info afhi, *afhi_ptr = NULL;
1798 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1799 struct osl_object map, obj = {.data = NULL}, query;
1800 HASH_TYPE hash[HASH_SIZE];
1801
1802 ret = guess_audio_format(path);
1803 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1804 goto out_free;
1805 query.data = (char *)path;
1806 query.size = strlen(path) + 1;
1807 ret = send_callback_request(path_brother_callback, &query,
1808 get_row_pointer_from_result, &pb);
1809 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1810 goto out_free;
1811 ret = 1;
1812 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1813 if (pad->flags & ADD_FLAG_VERBOSE)
1814 send_ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1815 goto out_free;
1816 }
1817 /* We still want to add this file. Compute its hash. */
1818 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1819 if (ret < 0)
1820 goto out_free;
1821 hash_function(map.data, map.size, hash);
1822
1823 /* Check whether the database contains a file with the same hash. */
1824 query.data = hash;
1825 query.size = HASH_SIZE;
1826 ret = send_callback_request(hash_sister_callback, &query,
1827 get_row_pointer_from_result, &hs);
1828 if (ret < 0)
1829 goto out_unmap;
1830 /* Return success if we already know this file. */
1831 ret = 1;
1832 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1833 if (pad->flags & ADD_FLAG_VERBOSE)
1834 send_ret = send_va_buffer(pad->fd,
1835 "%s exists, not forcing update\n", path);
1836 goto out_unmap;
1837 }
1838 /*
1839 * We won't recalculate the audio format info and the chunk table if
1840 * there is a hash sister and FORCE was not given.
1841 */
1842 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1843 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1844 if (ret < 0)
1845 goto out_unmap;
1846 format_num = ret;
1847 afhi_ptr = &afhi;
1848 }
1849 munmap(map.data, map.size);
1850 close(fd);
1851 if (pad->flags & ADD_FLAG_VERBOSE) {
1852 send_ret = send_va_buffer(pad->fd, "adding %s\n", path);
1853 if (send_ret < 0)
1854 goto out_free;
1855 }
1856 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1857 /* Ask afs to consider this entry for adding. */
1858 ret = send_callback_request(com_add_callback, &obj, send_result, &pad->fd);
1859 goto out_free;
1860
1861 out_unmap:
1862 close(fd);
1863 munmap(map.data, map.size);
1864 out_free:
1865 if (ret < 0 && send_ret >= 0)
1866 send_ret = send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1867 para_strerror(-ret));
1868 free(obj.data);
1869 if (afhi_ptr) {
1870 free(afhi_ptr->chunk_table);
1871 free(afhi_ptr->techinfo);
1872 free(afhi_ptr->tags.artist);
1873 free(afhi_ptr->tags.title);
1874 free(afhi_ptr->tags.year);
1875 free(afhi_ptr->tags.album);
1876 free(afhi_ptr->tags.comment);
1877 }
1878 /* Stop adding files only on send errors. */
1879 return send_ret;
1880 }
1881
1882 int com_add(int fd, int argc, char * const * const argv)
1883 {
1884 int i, ret;
1885 struct private_add_data pad = {.fd = fd, .flags = 0};
1886 struct stat statbuf;
1887
1888 for (i = 1; i < argc; i++) {
1889 const char *arg = argv[i];
1890 if (arg[0] != '-')
1891 break;
1892 if (!strcmp(arg, "--")) {
1893 i++;
1894 break;
1895 }
1896 if (!strcmp(arg, "-a")) {
1897 pad.flags |= ADD_FLAG_ALL;
1898 continue;
1899 }
1900 if (!strcmp(arg, "-l")) {
1901 pad.flags |= ADD_FLAG_LAZY;
1902 continue;
1903 }
1904 if (!strcmp(arg, "-f")) {
1905 pad.flags |= ADD_FLAG_FORCE;
1906 continue;
1907 }
1908 if (!strcmp(arg, "-v")) {
1909 pad.flags |= ADD_FLAG_VERBOSE;
1910 continue;
1911 }
1912 }
1913 if (argc <= i)
1914 return -E_AFT_SYNTAX;
1915 for (; i < argc; i++) {
1916 char *path;
1917 ret = verify_path(argv[i], &path);
1918 if (ret < 0) {
1919 ret = send_va_buffer(fd, "%s: %s\n", argv[i],
1920 para_strerror(-ret));
1921 if (ret < 0)
1922 return ret;
1923 continue;
1924 }
1925 ret = stat(path, &statbuf);
1926 if (ret < 0) {
1927 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1928 strerror(errno));
1929 free(path);
1930 if (ret < 0)
1931 return ret;
1932 continue;
1933 }
1934 if (S_ISDIR(statbuf.st_mode))
1935 ret = for_each_file_in_dir(path, add_one_audio_file,
1936 &pad);
1937 else
1938 ret = add_one_audio_file(path, &pad);
1939 if (ret < 0) {
1940 send_va_buffer(fd, "%s: %s\n", path, para_strerror(-ret));
1941 free(path);
1942 return ret;
1943 }
1944 free(path);
1945 }
1946 return 1;
1947
1948 }
1949
1950 /**
1951 * Flags used by the touch command.
1952 *
1953 * \sa com_touch().
1954 */
1955 enum touch_flags {
1956 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1957 TOUCH_FLAG_FNM_PATHNAME = 1,
1958 /** Activates verbose mode. */
1959 TOUCH_FLAG_VERBOSE = 2
1960 };
1961
1962 /** Options used by com_touch(). */
1963 struct com_touch_options {
1964 /** New num_played value. */
1965 int32_t num_played;
1966 /** New last played count. */
1967 int64_t last_played;
1968 /** New lyrics id. */
1969 int32_t lyrics_id;
1970 /** New image id. */
1971 int32_t image_id;
1972 /** New amplification value. */
1973 int32_t amp;
1974 /** Command line flags (see \ref touch_flags). */
1975 unsigned flags;
1976 };
1977
1978 /** Data passed to the action handler of com_touch(). */
1979 struct touch_action_data {
1980 /** Command line options (see \ref com_touch_options). */
1981 struct com_touch_options *cto;
1982 /** Message buffer. */
1983 struct para_buffer pb;
1984 /** How many audio files matched the given pattern. */
1985 unsigned num_matches;
1986 };
1987
1988 static int touch_audio_file(__a_unused struct osl_table *table,
1989 struct osl_row *row, const char *name, void *data)
1990 {
1991 struct touch_action_data *tad = data;
1992 struct osl_object obj;
1993 struct afs_info old_afsi, new_afsi;
1994 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1995 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
1996 struct afsi_change_event_data aced;
1997
1998 ret = get_afsi_object_of_row(row, &obj);
1999 if (ret < 0)
2000 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2001 ret = load_afsi(&old_afsi, &obj);
2002 if (ret < 0)
2003 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2004 new_afsi = old_afsi;
2005 if (no_options) {
2006 new_afsi.num_played++;
2007 new_afsi.last_played = time(NULL);
2008 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2009 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2010 "last_played = now()\n", name,
2011 new_afsi.num_played);
2012 if (ret < 0)
2013 return ret;
2014 }
2015 } else {
2016 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2017 ret = para_printf(&tad->pb, "touching %s\n", name);
2018 if (ret < 0)
2019 return ret;
2020 }
2021 if (tad->cto->lyrics_id >= 0)
2022 new_afsi.lyrics_id = tad->cto->lyrics_id;
2023 if (tad->cto->image_id >= 0)
2024 new_afsi.image_id = tad->cto->image_id;
2025 if (tad->cto->num_played >= 0)
2026 new_afsi.num_played = tad->cto->num_played;
2027 if (tad->cto->last_played >= 0)
2028 new_afsi.last_played = tad->cto->last_played;
2029 if (tad->cto->amp >= 0)
2030 new_afsi.amp = tad->cto->amp;
2031 }
2032 tad->num_matches++;
2033 save_afsi(&new_afsi, &obj); /* in-place update */
2034 aced.aft_row = row;
2035 aced.old_afsi = &old_afsi;
2036 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2037 return 1;
2038 }
2039
2040 static void com_touch_callback(int fd, const struct osl_object *query)
2041 {
2042 struct touch_action_data tad = {.cto = query->data,
2043 .pb = {
2044 .max_size = SHMMAX,
2045 .private_data = &fd,
2046 .max_size_handler = pass_buffer_as_shm
2047 }
2048 };
2049 int ret, ret2 = 0;
2050 struct pattern_match_data pmd = {
2051 .table = audio_file_table,
2052 .loop_col_num = AFTCOL_HASH,
2053 .match_col_num = AFTCOL_PATH,
2054 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2055 .size = query->size - sizeof(*tad.cto)},
2056 .data = &tad,
2057 .action = touch_audio_file
2058 };
2059 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2060 pmd.fnmatch_flags |= FNM_PATHNAME;
2061 ret = for_each_matching_row(&pmd);
2062 if (ret < 0)
2063 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2064 else
2065 if (!tad.num_matches)
2066 ret2 = para_printf(&tad.pb, "no matches\n");
2067 if (ret2 >= 0 && tad.pb.offset)
2068 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2069 free(tad.pb.buf);
2070 }
2071
2072 int com_touch(int fd, int argc, char * const * const argv)
2073 {
2074 struct com_touch_options cto = {
2075 .num_played = -1,
2076 .last_played = -1,
2077 .lyrics_id = -1,
2078 .image_id = -1,
2079 .amp = -1,
2080 };
2081 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2082 int i, ret;
2083
2084
2085 for (i = 1; i < argc; i++) {
2086 const char *arg = argv[i];
2087 if (arg[0] != '-')
2088 break;
2089 if (!strcmp(arg, "--")) {
2090 i++;
2091 break;
2092 }
2093 if (!strncmp(arg, "-n", 2)) {
2094 ret = para_atoi32(arg + 2, &cto.num_played);
2095 if (ret < 0)
2096 return ret;
2097 continue;
2098 }
2099 if (!strncmp(arg, "-l", 2)) {
2100 ret = para_atoi64(arg + 2, &cto.last_played);
2101 if (ret < 0)
2102 return ret;
2103 continue;
2104 }
2105 if (!strncmp(arg, "-y", 2)) {
2106 ret = para_atoi32(arg + 2, &cto.lyrics_id);
2107 if (ret < 0)
2108 return ret;
2109 continue;
2110 }
2111 if (!strncmp(arg, "-i", 2)) {
2112 ret = para_atoi32(arg + 2, &cto.image_id);
2113 if (ret < 0)
2114 return ret;
2115 continue;
2116 }
2117 if (!strncmp(arg, "-a", 2)) {
2118 int32_t val;
2119 ret = para_atoi32(arg + 2, &val);
2120 if (ret < 0)
2121 return ret;
2122 if (val < 0 || val > 255)
2123 return -ERRNO_TO_PARA_ERROR(EINVAL);
2124 cto.amp = val;
2125 continue;
2126 }
2127 if (!strcmp(arg, "-p")) {
2128 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2129 continue;
2130 }
2131 if (!strcmp(arg, "-v")) {
2132 cto.flags |= TOUCH_FLAG_VERBOSE;
2133 continue;
2134 }
2135 break; /* non-option starting with dash */
2136 }
2137 if (i >= argc)
2138 return -E_AFT_SYNTAX;
2139 ret = send_option_arg_callback_request(&query, argc - i,
2140 argv + i, com_touch_callback, send_result, &fd);
2141 if (ret < 0)
2142 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2143 return ret;
2144 }
2145
2146 /** Flags for com_rm(). */
2147 enum rm_flags {
2148 /** -v */
2149 RM_FLAG_VERBOSE = 1,
2150 /** -f */
2151 RM_FLAG_FORCE = 2,
2152 /** -p */
2153 RM_FLAG_FNM_PATHNAME = 4
2154 };
2155
2156 /** Data passed to the action handler of com_rm(). */
2157 struct com_rm_action_data {
2158 /** Command line flags ((see \ref rm_flags). */
2159 uint32_t flags;
2160 /** Message buffer. */
2161 struct para_buffer pb;
2162 /** Number of audio files removed. */
2163 unsigned num_removed;
2164 };
2165
2166 static int remove_audio_file(__a_unused struct osl_table *table,
2167 struct osl_row *row, const char *name, void *data)
2168 {
2169 struct com_rm_action_data *crd = data;
2170 int ret;
2171
2172 if (crd->flags & RM_FLAG_VERBOSE) {
2173 ret = para_printf(&crd->pb, "removing %s\n", name);
2174 if (ret < 0)
2175 return ret;
2176 }
2177 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2178 ret = osl(osl_del_row(audio_file_table, row));
2179 if (ret < 0)
2180 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2181 else
2182 crd->num_removed++;
2183 return ret;
2184 }
2185
2186 static void com_rm_callback(int fd, const struct osl_object *query)
2187 {
2188 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2189 .pb = {
2190 .max_size = SHMMAX,
2191 .private_data = &fd,
2192 .max_size_handler = pass_buffer_as_shm
2193 }
2194 };
2195 int ret;
2196 struct pattern_match_data pmd = {
2197 .table = audio_file_table,
2198 .loop_col_num = AFTCOL_HASH,
2199 .match_col_num = AFTCOL_PATH,
2200 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2201 .size = query->size - sizeof(uint32_t)},
2202 .data = &crd,
2203 .action = remove_audio_file
2204 };
2205 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2206 pmd.fnmatch_flags |= FNM_PATHNAME;
2207 ret = for_each_matching_row(&pmd);
2208 if (ret < 0) {
2209 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2210 return;
2211 }
2212 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2213 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2214 else {
2215 if (crd.flags & RM_FLAG_VERBOSE)
2216 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2217 }
2218 if (ret >= 0 && crd.pb.offset)
2219 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2220 free(crd.pb.buf);
2221 }
2222
2223 /* TODO options: -r (recursive) */
2224 int com_rm(int fd, int argc, char * const * const argv)
2225 {
2226 uint32_t flags = 0;
2227 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2228 int i, ret;
2229
2230 for (i = 1; i < argc; i++) {
2231 const char *arg = argv[i];
2232 if (arg[0] != '-')
2233 break;
2234 if (!strcmp(arg, "--")) {
2235 i++;
2236 break;
2237 }
2238 if (!strcmp(arg, "-f")) {
2239 flags |= RM_FLAG_FORCE;
2240 continue;
2241 }
2242 if (!strcmp(arg, "-p")) {
2243 flags |= RM_FLAG_FNM_PATHNAME;
2244 continue;
2245 }
2246 if (!strcmp(arg, "-v")) {
2247 flags |= RM_FLAG_VERBOSE;
2248 continue;
2249 }
2250 break;
2251 }
2252 if (i >= argc)
2253 return -E_AFT_SYNTAX;
2254 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2255 com_rm_callback, send_result, &fd);
2256 if (ret < 0)
2257 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2258 return ret;
2259 }
2260
2261 /**
2262 * Flags used by the cpsi command.
2263 *
2264 * \sa com_cpsi().
2265 */
2266 enum cpsi_flags {
2267 /** Whether the lyrics id should be copied. */
2268 CPSI_FLAG_COPY_LYRICS_ID = 1,
2269 /** Whether the image id should be copied. */
2270 CPSI_FLAG_COPY_IMAGE_ID = 2,
2271 /** Whether the lastplayed time should be copied. */
2272 CPSI_FLAG_COPY_LASTPLAYED = 4,
2273 /** Whether the numplayed count should be copied. */
2274 CPSI_FLAG_COPY_NUMPLAYED = 8,
2275 /** Whether the attributes should be copied. */
2276 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2277 /** Activates verbose mode. */
2278 CPSI_FLAG_VERBOSE = 32,
2279 };
2280
2281 /** Data passed to the action handler of com_cpsi(). */
2282 struct cpsi_action_data {
2283 /** command line flags (see \ref cpsi_flags). */
2284 unsigned flags;
2285 /** Number of audio files changed. */
2286 unsigned num_copied;
2287 /** Message buffer. */
2288 struct para_buffer pb;
2289 /** Values are copied from here. */
2290 struct afs_info source_afsi;
2291 };
2292
2293 static int copy_selector_info(__a_unused struct osl_table *table,
2294 struct osl_row *row, const char *name, void *data)
2295 {
2296 struct cpsi_action_data *cad = data;
2297 struct osl_object target_afsi_obj;
2298 int ret;
2299 struct afs_info old_afsi, target_afsi;
2300 struct afsi_change_event_data aced;
2301
2302 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2303 if (ret < 0)
2304 return ret;
2305 load_afsi(&target_afsi, &target_afsi_obj);
2306 old_afsi = target_afsi;
2307 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2308 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2309 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2310 target_afsi.image_id = cad->source_afsi.image_id;
2311 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2312 target_afsi.last_played = cad->source_afsi.last_played;
2313 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2314 target_afsi.num_played = cad->source_afsi.num_played;
2315 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2316 target_afsi.attributes = cad->source_afsi.attributes;
2317 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2318 cad->num_copied++;
2319 if (cad->flags & CPSI_FLAG_VERBOSE) {
2320 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2321 if (ret < 0)
2322 return ret;
2323 }
2324 aced.aft_row = row;
2325 aced.old_afsi = &old_afsi;
2326 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2327 return 1;
2328 }
2329
2330 static void com_cpsi_callback(int fd, const struct osl_object *query)
2331 {
2332 struct cpsi_action_data cad = {
2333 .flags = *(unsigned *)query->data,
2334 .pb = {
2335 .max_size = SHMMAX,
2336 .private_data = &fd,
2337 .max_size_handler = pass_buffer_as_shm
2338 }
2339 };
2340 int ret;
2341 char *source_path = (char *)query->data + sizeof(cad.flags);
2342 struct pattern_match_data pmd = {
2343 .table = audio_file_table,
2344 .loop_col_num = AFTCOL_HASH,
2345 .match_col_num = AFTCOL_PATH,
2346 .patterns = {.data = source_path + strlen(source_path) + 1,
2347 .size = query->size - sizeof(cad.flags)
2348 - strlen(source_path) - 1},
2349 .data = &cad,
2350 .action = copy_selector_info
2351 };
2352
2353 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2354 if (ret < 0)
2355 goto out;
2356 ret = for_each_matching_row(&pmd);
2357 out:
2358 if (ret < 0)
2359 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2360 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2361 if (cad.num_copied)
2362 para_printf(&cad.pb, "copied requested afsi from %s "
2363 "to %u files\n", source_path, cad.num_copied);
2364 else
2365 para_printf(&cad.pb, "nothing copied\n");
2366 }
2367 if (cad.pb.offset)
2368 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2369 free(cad.pb.buf);
2370 }
2371
2372 int com_cpsi(int fd, int argc, char * const * const argv)
2373 {
2374 unsigned flags = 0;
2375 int i, ret;
2376 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2377
2378 for (i = 1; i < argc; i++) {
2379 const char *arg = argv[i];
2380 if (arg[0] != '-')
2381 break;
2382 if (!strcmp(arg, "--")) {
2383 i++;
2384 break;
2385 }
2386 if (!strcmp(arg, "-y")) {
2387 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2388 continue;
2389 }
2390 if (!strcmp(arg, "-i")) {
2391 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2392 continue;
2393 }
2394 if (!strcmp(arg, "-l")) {
2395 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2396 continue;
2397 }
2398 if (!strcmp(arg, "-n")) {
2399 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2400 continue;
2401 }
2402 if (!strcmp(arg, "-a")) {
2403 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2404 continue;
2405 }
2406 if (!strcmp(arg, "-v")) {
2407 flags |= CPSI_FLAG_VERBOSE;
2408 continue;
2409 }
2410 break;
2411 }
2412 if (i + 1 >= argc) /* need at least source file and pattern */
2413 return -E_AFT_SYNTAX;
2414 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2415 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2416 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2417 com_cpsi_callback, send_result, &fd);
2418 if (ret < 0)
2419 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2420 return ret;
2421 }
2422
2423 void afs_stat_callback(int fd, const struct osl_object *query)
2424 {
2425 int *parser_friendly = query->data;
2426 char *buf = *parser_friendly?
2427 parser_friendly_status_items : status_items;
2428
2429 if (!buf)
2430 return;
2431 pass_buffer_as_shm(buf, strlen(buf), &fd);
2432 }
2433
2434 int send_afs_status(int fd, int parser_friendly)
2435 {
2436 struct osl_object query = {.data = &parser_friendly,
2437 .size = sizeof(parser_friendly)};
2438
2439 return send_callback_request(afs_stat_callback, &query, send_result, &fd);
2440 }
2441
2442 /* TODO: optionally fix problems by removing offending rows */
2443 static int check_audio_file(struct osl_row *row, void *data)
2444 {
2445 char *path;
2446 struct para_buffer *pb = data;
2447 struct stat statbuf;
2448 int ret = get_audio_file_path_of_row(row, &path);
2449 struct afs_info afsi;
2450 char *blob_name;
2451
2452 if (ret < 0)
2453 return para_printf(pb, "%s\n", para_strerror(-ret));
2454 if (stat(path, &statbuf) < 0) {
2455 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2456 if (ret < 0)
2457 return ret;
2458 } else {
2459 if (!S_ISREG(statbuf.st_mode)) {
2460 ret = para_printf(pb, "%s: not a regular file\n", path);
2461 if (ret < 0)
2462 return ret;
2463 }
2464 }
2465 ret = get_afsi_of_row(row, &afsi);
2466 if (ret < 0)
2467 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2468 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2469 if (ret < 0) {
2470 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2471 para_strerror(-ret));
2472 if (ret < 0)
2473 return ret;
2474 }
2475 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2476 if (ret < 0)
2477 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2478 para_strerror(-ret));
2479 return ret;
2480 }
2481
2482 /**
2483 * Check the audio file table for inconsistencies.
2484 *
2485 * \param fd The afs socket.
2486 * \param query Unused.
2487 *
2488 * This function always succeeds.
2489 *
2490 * \sa com_check().
2491 */
2492 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2493 {
2494 struct para_buffer pb = {
2495 .max_size = SHMMAX,
2496 .private_data = &fd,
2497 .max_size_handler = pass_buffer_as_shm
2498 };
2499 int ret = para_printf(&pb, "checking audio file table...\n");
2500
2501 if (ret < 0)
2502 return;
2503 audio_file_loop(&pb, check_audio_file);
2504 if (pb.offset)
2505 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2506 free(pb.buf);
2507 }
2508
2509 /**
2510 * Close the audio file table.
2511 *
2512 * \param flags Usual flags that are passed to osl_close_table().
2513 *
2514 * \sa osl_close_table().
2515 */
2516 static void aft_close(void)
2517 {
2518 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2519 audio_file_table = NULL;
2520 free(status_items);
2521 status_items = NULL;
2522 free(parser_friendly_status_items);
2523 parser_friendly_status_items = NULL;
2524 }
2525
2526 /**
2527 * Open the audio file table.
2528 *
2529 * \param dir The database directory.
2530 *
2531 * \return Standard.
2532 *
2533 * \sa osl_open_table().
2534 */
2535 static int aft_open(const char *dir)
2536 {
2537 int ret;
2538
2539 audio_file_table_desc.dir = dir;
2540 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2541 if (ret >= 0) {
2542 unsigned num;
2543 osl_get_num_rows(audio_file_table, &num);
2544 PARA_INFO_LOG("audio file table contains %d files\n", num);
2545 return ret;
2546 }
2547 PARA_INFO_LOG("failed to open audio file table\n");
2548 audio_file_table = NULL;
2549 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2550 return 1;
2551 return ret;
2552 }
2553
2554 static int aft_create(const char *dir)
2555 {
2556 audio_file_table_desc.dir = dir;
2557 return osl(osl_create_table(&audio_file_table_desc));
2558 }
2559
2560 static int clear_attribute(struct osl_row *row, void *data)
2561 {
2562 struct rmatt_event_data *red = data;
2563 struct afs_info afsi;
2564 struct osl_object obj;
2565 int ret = get_afsi_object_of_row(row, &obj);
2566 uint64_t mask = ~(1ULL << red->bitnum);
2567
2568 if (ret < 0)
2569 return ret;
2570 ret = load_afsi(&afsi, &obj);
2571 if (ret < 0)
2572 return ret;
2573 afsi.attributes &= mask;
2574 save_afsi(&afsi, &obj);
2575 return 1;
2576 }
2577
2578 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2579 void *data)
2580 {
2581 int ret;
2582
2583 switch(event) {
2584 case ATTRIBUTE_REMOVE: {
2585 const struct rmatt_event_data *red = data;
2586 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2587 "entries in the audio file table\n", red->name,
2588 red->bitnum);
2589 if (ret < 0)
2590 return ret;
2591 return audio_file_loop(data, clear_attribute);
2592 }
2593 default:
2594 return 1;
2595 }
2596 }
2597
2598 void aft_init(struct afs_table *t)
2599 {
2600 t->name = audio_file_table_desc.name;
2601 t->open = aft_open;
2602 t->close = aft_close;
2603 t->create = aft_create;
2604 t->event_handler = aft_event_handler;
2605 }