wmadec: Simplify wma_lsp_to_curve_init().
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
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 <regex.h>
10 #include <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14
15 #include "para.h"
16 #include "error.h"
17 #include "crypt.h"
18 #include "string.h"
19 #include "afh.h"
20 #include "afs.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24 #include "sideband.h"
25 #include "command.h"
26
27 static struct osl_table *audio_file_table;
28 static char *status_items;
29 static char *parser_friendly_status_items;
30
31 /** The different sorting methods of the ls command. */
32 enum ls_sorting_method {
33 /** -sp (default) */
34 LS_SORT_BY_PATH,
35 /** -ss */
36 LS_SORT_BY_SCORE,
37 /** -sl */
38 LS_SORT_BY_LAST_PLAYED,
39 /** -sn */
40 LS_SORT_BY_NUM_PLAYED,
41 /** -sf */
42 LS_SORT_BY_FREQUENCY,
43 /** -sc */
44 LS_SORT_BY_CHANNELS,
45 /** -si */
46 LS_SORT_BY_IMAGE_ID,
47 /** -sy */
48 LS_SORT_BY_LYRICS_ID,
49 /** -sb */
50 LS_SORT_BY_BITRATE,
51 /** -sd */
52 LS_SORT_BY_DURATION,
53 /** -sa */
54 LS_SORT_BY_AUDIO_FORMAT,
55 /** -sh */
56 LS_SORT_BY_HASH,
57 };
58
59 /** The different listing modes of the ls command. */
60 enum ls_listing_mode {
61 /** Default listing mode. */
62 LS_MODE_SHORT,
63 /** -l or -ll */
64 LS_MODE_LONG,
65 /** -lv */
66 LS_MODE_VERBOSE,
67 /** -lm */
68 LS_MODE_MBOX,
69 /** -lc */
70 LS_MODE_CHUNKS,
71 /** -lp */
72 LS_MODE_PARSER,
73 };
74
75 /* Data about one audio file. Needed for ls and stat output. */
76 struct ls_data {
77 /* Usual audio format handler information. */
78 struct afh_info afhi;
79 /* Audio file selector information. */
80 struct afs_info afsi;
81 /* The full path of the audio file. */
82 char *path;
83 /* The score value (if -a was given). */
84 long score;
85 /* The hash value of the audio file data. */
86 unsigned char *hash;
87 };
88
89 /** The flags accepted by the ls command. */
90 enum ls_flags {
91 /** -p */
92 LS_FLAG_FULL_PATH = 1,
93 /** -a */
94 LS_FLAG_ADMISSIBLE_ONLY = 2,
95 /** -r */
96 LS_FLAG_REVERSE = 4,
97 /** -d */
98 LS_FLAG_UNIXDATE = 8,
99 };
100
101 /**
102 * The size of the individual output fields of the ls command.
103 *
104 * These depend on the content being listed. For example, if each listed file
105 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
106 * is set to hh:mm:ss.
107 */
108 struct ls_widths {
109 /** size of the score field. */
110 unsigned short score_width;
111 /** size of the image id field. */
112 unsigned short image_id_width;
113 /** size of the lyrics id field. */
114 unsigned short lyrics_id_width;
115 /** size of the bitrate field. */
116 unsigned short bitrate_width;
117 /** size of the frequency field. */
118 unsigned short frequency_width;
119 /** size of the duration field. */
120 unsigned short duration_width;
121 /** size of the num played field. */
122 unsigned short num_played_width;
123 /** size of the amp field. */
124 unsigned short amp_width;
125 /** size of the audio format field. */
126 unsigned short audio_format_width;
127 };
128
129 /** Data passed from the ls command handler to its callback function. */
130 struct ls_options {
131 /** The given command line flags. */
132 unsigned flags;
133 /** The sorting method given at the command line. */
134 enum ls_sorting_method sorting;
135 /** The given listing mode (short, long, verbose, mbox). */
136 enum ls_listing_mode mode;
137 /** The arguments passed to the ls command. */
138 char **patterns;
139 /** Number of non-option arguments. */
140 int num_patterns;
141 /** Used for long listing mode to align the output fields. */
142 struct ls_widths widths;
143 /** Size of the \a data array. */
144 uint32_t array_size;
145 /** Number of used entries in the data array. */
146 uint32_t num_matching_paths;
147 /** Array of matching entries. */
148 struct ls_data *data;
149 /** Used to sort the array. */
150 struct ls_data **data_ptr;
151 };
152
153 /**
154 * Describes the layout of the mmapped-afs info struct.
155 *
156 * \sa struct afs_info.
157 */
158 enum afsi_offsets {
159 /** Where .last_played is stored. */
160 AFSI_LAST_PLAYED_OFFSET = 0,
161 /** Storage position of the attributes bitmap. */
162 AFSI_ATTRIBUTES_OFFSET = 8,
163 /** Storage position of the .num_played field. */
164 AFSI_NUM_PLAYED_OFFSET = 16,
165 /** Storage position of the .image_id field. */
166 AFSI_IMAGE_ID_OFFSET = 20,
167 /** Storage position of the .lyrics_id field. */
168 AFSI_LYRICS_ID_OFFSET = 24,
169 /** Storage position of the .audio_format_id field. */
170 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
171 /** Storage position of the amplification field. */
172 AFSI_AMP_OFFSET = 29,
173 /** 2 bytes reserved space for future usage. */
174 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
175 /** On-disk storage space needed. */
176 AFSI_SIZE = 32
177 };
178
179 /*
180 * Convert a struct afs_info to an osl object.
181 *
182 * \param afsi Pointer to the audio file info to be converted.
183 * \param obj Result pointer.
184 *
185 * \sa load_afsi().
186 */
187 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
188 {
189 char *buf = obj->data;
190
191 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
192 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
193 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
194 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
195 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
196 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
197 afsi->audio_format_id);
198 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
199 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
200 }
201
202 /*
203 * Get the audio file selector info struct stored in an osl object.
204 *
205 * \param afsi Points to the audio_file info structure to be filled in.
206 * \param obj The osl object holding the data.
207 *
208 * \return Standard.
209 *
210 * \sa save_afsi().
211 */
212 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
213 {
214 char *buf = obj->data;
215 if (obj->size < AFSI_SIZE)
216 return -E_BAD_AFSI;
217 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
218 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
219 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
220 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
221 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
222 afsi->audio_format_id = read_u8(buf +
223 AFSI_AUDIO_FORMAT_ID_OFFSET);
224 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
225 return 1;
226 }
227
228 /** The columns of the audio file table. */
229 enum audio_file_table_columns {
230 /** The hash on the content of the audio file. */
231 AFTCOL_HASH,
232 /** The full path in the filesystem. */
233 AFTCOL_PATH,
234 /** The audio file selector info. */
235 AFTCOL_AFSI,
236 /** The audio format handler info. */
237 AFTCOL_AFHI,
238 /** The chunk table info and the chunk table of the audio file. */
239 AFTCOL_CHUNKS,
240 /** The number of columns of this table. */
241 NUM_AFT_COLUMNS
242 };
243
244 /* compare function for the hash column */
245 static int aft_hash_compare(const struct osl_object *obj1,
246 const struct osl_object *obj2)
247 {
248 return hash_compare((unsigned char *)obj1->data,
249 (unsigned char *)obj2->data);
250 }
251
252 static struct osl_column_description aft_cols[] = {
253 [AFTCOL_HASH] = {
254 .storage_type = OSL_MAPPED_STORAGE,
255 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
256 .name = "hash",
257 .compare_function = aft_hash_compare,
258 .data_size = HASH_SIZE
259 },
260 [AFTCOL_PATH] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
263 .name = "path",
264 .compare_function = string_compare,
265 },
266 [AFTCOL_AFSI] = {
267 .storage_type = OSL_MAPPED_STORAGE,
268 .storage_flags = OSL_FIXED_SIZE,
269 .name = "afs_info",
270 .data_size = AFSI_SIZE
271 },
272 [AFTCOL_AFHI] = {
273 .storage_type = OSL_MAPPED_STORAGE,
274 .name = "afh_info",
275 },
276 [AFTCOL_CHUNKS] = {
277 .storage_type = OSL_DISK_STORAGE,
278 .name = "chunks",
279 }
280 };
281
282 static struct osl_table_description audio_file_table_desc = {
283 .name = "audio_files",
284 .num_columns = NUM_AFT_COLUMNS,
285 .flags = OSL_LARGE_TABLE,
286 .column_descriptions = aft_cols
287 };
288
289 /*
290 * Produce a canonicalized absolute pathname.
291 *
292 * Returns one if the resolved path a directory, zero if it is a regular file,
293 * negative on errors.
294 */
295 static int verify_path(const char *orig_path, char **resolved_path)
296 {
297 int ret;
298 char *path = NULL;
299 struct stat statbuf;
300
301 if (*orig_path != '/') /* we only accept absolute paths */
302 goto fail;
303 path = realpath(orig_path, NULL);
304 if (!path)
305 goto fail;
306 if (stat(path, &statbuf) < 0)
307 goto fail;
308 if (S_ISREG(statbuf.st_mode))
309 ret = 0;
310 else if (S_ISDIR(statbuf.st_mode))
311 ret = 1;
312 else
313 goto fail;
314 *resolved_path = path;
315 return ret;
316 fail:
317 *resolved_path = NULL;
318 free(path);
319 return -E_BAD_PATH;
320 }
321
322 /** The on-disk layout of a afhi struct. */
323 enum afhi_offsets {
324 /** Where the number of seconds is stored. */
325 AFHI_SECONDS_TOTAL_OFFSET = 0,
326 /** Position of the bitrate. */
327 AFHI_BITRATE_OFFSET = 4,
328 /** Position of the frequency. */
329 AFHI_FREQUENCY_OFFSET = 8,
330 /** Was: Location of the audio file header. */
331 AFHI_UNUSED1_OFFSET = 12,
332 /* Length of the audio file header. Zero means: No header. */
333 AFHI_HEADER_LEN_OFFSET = 16,
334 /** The total number of chunks (4 bytes). */
335 CHUNKS_TOTAL_OFFSET = 20,
336 /** The length of the audio file header (4 bytes). */
337 HEADER_LEN_OFFSET = 24,
338 /** Was: The start of the audio file header (4 bytes). */
339 AFHI_UNUSED2_OFFSET = 28,
340 /** The seconds part of the chunk time (4 bytes). */
341 CHUNK_TV_TV_SEC_OFFSET = 32,
342 /** The microseconds part of the chunk time (4 bytes). */
343 CHUNK_TV_TV_USEC_OFFSET = 36,
344 /** Number of channels is stored here. (1 byte) */
345 AFHI_CHANNELS_OFFSET = 40,
346 /** The tag info position. */
347 AFHI_INFO_STRING_OFFSET = 41,
348 /** Minimal on-disk size of a valid afhi struct. */
349 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
350 };
351
352 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
353 {
354 if (!afhi)
355 return 0;
356 return MIN_AFHI_SIZE
357 + strlen(afhi->techinfo)
358 + strlen(afhi->tags.artist)
359 + strlen(afhi->tags.title)
360 + strlen(afhi->tags.year)
361 + strlen(afhi->tags.album)
362 + strlen(afhi->tags.comment);
363 }
364
365 static void save_afhi(struct afh_info *afhi, char *buf)
366 {
367 char *p;
368
369 if (!afhi)
370 return;
371 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
372 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
373 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
374 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
375 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
376 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
377 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
378 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
379 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
380 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
381 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
382 p = buf + AFHI_INFO_STRING_OFFSET;
383 /* The sprintf's below are OK as our caller made sure that buf is large enough */
384 p += sprintf(p, "%s", afhi->techinfo) + 1;
385 p += sprintf(p, "%s", afhi->tags.artist) + 1;
386 p += sprintf(p, "%s", afhi->tags.title) + 1;
387 p += sprintf(p, "%s", afhi->tags.year) + 1;
388 p += sprintf(p, "%s", afhi->tags.album) + 1;
389 sprintf(p, "%s", afhi->tags.comment);
390 }
391
392 static void load_afhi(const char *buf, struct afh_info *afhi)
393 {
394 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
395 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
396 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
397 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
398 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
399 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
400 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
401 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
402 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
403 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
404 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
405 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
406 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
407 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
408 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
409 }
410
411 static unsigned sizeof_chunk_table(struct afh_info *afhi)
412 {
413 if (!afhi)
414 return 0;
415 return 4 * (afhi->chunks_total + 1);
416 }
417
418 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
419 {
420 int i;
421 uint32_t max = 0, old = 0;
422
423 for (i = 0; i <= afhi->chunks_total; i++) {
424 uint32_t val = afhi->chunk_table[i];
425 write_u32(buf + 4 * i, val);
426 /*
427 * If the first chunk is the header, do not consider it for the
428 * calculation of the largest chunk size.
429 */
430 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
431 old = val;
432 continue;
433 }
434 max = PARA_MAX(max, val - old);
435 old = val;
436 }
437 return max;
438 }
439
440 static void load_chunk_table(struct afh_info *afhi, char *buf)
441 {
442 int i;
443
444 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
445 for (i = 0; i <= afhi->chunks_total; i++)
446 afhi->chunk_table[i] = read_u32(buf + 4 * i);
447 }
448
449 /**
450 * Get the row of the audio file table corresponding to the given path.
451 *
452 * \param path The full path of the audio file.
453 * \param row Result pointer.
454 *
455 * \return Standard.
456 */
457 int aft_get_row_of_path(const char *path, struct osl_row **row)
458 {
459 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
460
461 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
462 }
463
464 /**
465 * Get the row of the audio file table corresponding to the given hash value.
466 *
467 * \param hash The hash value of the desired audio file.
468 * \param row Result pointer.
469 *
470 * \return Standard.
471 */
472 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
473 {
474 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
475 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
476 }
477
478 /*
479 * Get the audio file selector info object of a row.
480 *
481 * \param row Pointer to a row in the audio file table.
482 * \param obj Result pointer.
483 *
484 * \return Standard.
485 */
486 static int get_afsi_object_of_row(const struct osl_row *row,
487 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 static 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 Standard.
534 */
535 static 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, unsigned char **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 buf = shm_afd;
640 buf += sizeof(*afd);
641 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
642 *(struct audio_file_data *)shm_afd = *afd;
643 shm_detach(shm_afd);
644 return shmid;
645 err:
646 shm_destroy(shmid);
647 return ret;
648 }
649
650 /**
651 * Extract a afd stored in a shared memory area.
652 *
653 * Attach the shared memory area given by \a shmid, load the audio file data
654 * stored therein and detach the area afterwards. Called by vss, after
655 * receiving a positive response to the request for the next audio file.
656 +
657 * \param shmid The identifier of the shared memory area containing the afd.
658 * \param afd Result pointer.
659 *
660 * \return Standard.
661 */
662 int load_afd(int shmid, struct audio_file_data *afd)
663 {
664 void *shm_afd;
665 int ret;
666
667 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
668 if (ret < 0)
669 return ret;
670 *afd = *(struct audio_file_data *)shm_afd;
671 load_chunk_table(&afd->afhi, shm_afd + sizeof(*afd));
672 shm_detach(shm_afd);
673 return 1;
674 }
675
676 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
677 time_t current_time, enum ls_listing_mode lm)
678 {
679 struct tm *tm;
680 /*
681 * Omit year but show time if the given value is closer to the current
682 * time than this many seconds.
683 */
684 const time_t m = 6 * 30 * 24 * 3600; /* six months */
685
686 tm = localtime((time_t *)seconds);
687 if (!tm)
688 return -E_LOCALTIME;
689 if (lm == LS_MODE_MBOX) {
690 if (!strftime(buf, size, "%c", tm))
691 return -E_STRFTIME;
692 return 1;
693 }
694 if (*seconds > current_time - m && *seconds < current_time + m) {
695 if (!strftime(buf, size, "%b %e %k:%M", tm))
696 return -E_STRFTIME;
697 return 1;
698 }
699 if (!strftime(buf, size, "%b %e %Y", tm))
700 return -E_STRFTIME;
701 return 1;
702 }
703
704 /** Compute the number of (decimal) digits of a number. */
705 #define GET_NUM_DIGITS(x, num) { \
706 typeof((x)) _tmp = PARA_ABS(x); \
707 *num = 1; \
708 if ((_tmp)) \
709 while ((_tmp) > 9) { \
710 (_tmp) /= 10; \
711 (*num)++; \
712 } \
713 }
714
715 __a_const static short unsigned get_duration_width(int seconds)
716 {
717 short unsigned width;
718 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
719
720 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
721 return 4 + (mins > 9);
722 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
723 GET_NUM_DIGITS(hours, &width);
724 return width + 6;
725 }
726
727 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
728 {
729 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
730 short unsigned max_width;
731
732 if (!hours) { /* m:ss or mm:ss */
733 max_width = opts->mode == LS_MODE_LONG?
734 opts->widths.duration_width : 4;
735 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
736 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
737 max_width = opts->mode == LS_MODE_LONG?
738 opts->widths.duration_width : 7;
739 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
740 seconds % 60);
741 }
742 }
743
744 static int write_attribute_items(struct para_buffer *b,
745 const char *att_bitmap, struct afs_info *afsi)
746 {
747 char *att_text;
748 int ret;
749
750 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
751 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
752 if (ret < 0)
753 return ret;
754 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
755 free(att_text);
756 return ret;
757 }
758
759 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
760 {
761 char *lyrics_name;
762
763 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
764 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
765 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
766 lyrics_name : "(none)");
767 }
768
769 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
770 {
771 char *image_name;
772
773 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
774 img_get_name_by_id(afsi->image_id, &image_name);
775 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
776 image_name : "(none)");
777 }
778
779 static void write_filename_items(struct para_buffer *b, const char *path,
780 unsigned flags)
781 {
782 char *val;
783
784 if (!(flags & LS_FLAG_FULL_PATH)) {
785 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
786 return;
787 }
788 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
789 val = para_basename(path);
790 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
791 val = para_dirname(path);
792 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
793 free(val);
794 }
795
796 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
797 {
798 struct osl_object chunk_table_obj;
799 struct osl_row *aft_row;
800 int ret, i;
801 char *buf;
802
803 ret = aft_get_row_of_hash(d->hash, &aft_row);
804 if (ret < 0)
805 return ret;
806 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
807 AFTCOL_CHUNKS, &chunk_table_obj));
808 if (ret < 0)
809 return ret;
810 para_printf(b, "%s\n"
811 "chunk_time: %lu:%lu\nchunk_offsets: ",
812 d->path,
813 (long unsigned) d->afhi.chunk_tv.tv_sec,
814 (long unsigned) d->afhi.chunk_tv.tv_usec
815 );
816 buf = chunk_table_obj.data;
817 for (i = 0; i <= d->afhi.chunks_total; i++)
818 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
819 para_printf(b, "\n");
820 ret = 1;
821 osl_close_disk_object(&chunk_table_obj);
822 return ret;
823 }
824
825 static void write_score(struct para_buffer *b, struct ls_data *d,
826 struct ls_options *opts)
827 {
828 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
829 return;
830 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
831 }
832
833 static int print_list_item(struct ls_data *d, struct ls_options *opts,
834 struct para_buffer *b, time_t current_time)
835 {
836 int ret;
837 char att_buf[65];
838 char last_played_time[30];
839 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
840 struct afs_info *afsi = &d->afsi;
841 struct afh_info *afhi = &d->afhi;
842 char asc_hash[2 * HASH_SIZE + 1];
843
844 if (opts->mode == LS_MODE_SHORT) {
845 para_printf(b, "%s\n", d->path);
846 ret = 1;
847 goto out;
848 }
849 if (opts->mode == LS_MODE_CHUNKS) {
850 ret = print_chunk_table(d, b);
851 goto out;
852 }
853 get_attribute_bitmap(&afsi->attributes, att_buf);
854 if (opts->flags & LS_FLAG_UNIXDATE)
855 sprintf(last_played_time, "%llu",
856 (long long unsigned)afsi->last_played);
857 else {
858 ret = get_local_time(&afsi->last_played, last_played_time,
859 sizeof(last_played_time), current_time, opts->mode);
860 if (ret < 0)
861 goto out;
862 }
863 get_duration_buf(afhi->seconds_total, duration_buf, opts);
864 if (opts->mode == LS_MODE_LONG) {
865 struct ls_widths *w = &opts->widths;
866 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
867 para_printf(b, "%*li ", opts->widths.score_width,
868 d->score);
869 }
870 para_printf(b,
871 "%s " /* attributes */
872 "%*u " /* amp */
873 "%*d " /* image_id */
874 "%*d " /* lyrics_id */
875 "%*d " /* bitrate */
876 "%*s " /* audio format */
877 "%*d " /* frequency */
878 "%d " /* channels */
879 "%s " /* duration */
880 "%*d " /* num_played */
881 "%s " /* last_played */
882 "%s\n", /* path */
883 att_buf,
884 w->amp_width, afsi->amp,
885 w->image_id_width, afsi->image_id,
886 w->lyrics_id_width, afsi->lyrics_id,
887 w->bitrate_width, afhi->bitrate,
888 w->audio_format_width,
889 audio_format_name(afsi->audio_format_id),
890 w->frequency_width, afhi->frequency,
891 afhi->channels,
892 duration_buf,
893 w->num_played_width, afsi->num_played,
894 last_played_time,
895 d->path
896 );
897 ret = 1;
898 goto out;
899 }
900 if (opts->mode == LS_MODE_MBOX) {
901 const char *bn = para_basename(d->path);
902 para_printf(b,
903 "From foo@localhost %s\n"
904 "Received: from\nTo: bar\nFrom: a\n"
905 "Subject: %s\n\n",
906 last_played_time,
907 bn? bn : "?");
908 }
909 write_filename_items(b, d->path, opts->flags);
910 write_score(b, d, opts);
911 ret = write_attribute_items(b, att_buf, afsi);
912 if (ret < 0)
913 goto out;
914 write_image_items(b, afsi);
915 write_lyrics_items(b, afsi);
916 hash_to_asc(d->hash, asc_hash);
917 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
918 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
919 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
920 audio_format_name(afsi->audio_format_id));
921 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
922 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
923 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
924 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
925 afhi->seconds_total);
926 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
927 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
928 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
929 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
930 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
931 afhi->chunks_total);
932 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
933 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
934 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
935 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
936 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
937 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
938 if (opts->mode == LS_MODE_MBOX) {
939 struct osl_object lyrics_def;
940 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
941 if (lyrics_def.data) {
942 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
943 (char *)lyrics_def.data);
944 osl_close_disk_object(&lyrics_def);
945 }
946 }
947 out:
948 return ret;
949 }
950
951 static struct ls_data status_item_ls_data;
952 static struct osl_row *current_aft_row;
953
954 static void make_inode_status_items(struct para_buffer *pb)
955 {
956 struct stat statbuf = {.st_size = 0};
957 char *path, mtime_str[30] = "\0";
958 struct tm mtime_tm;
959 int ret;
960
961 ret = get_audio_file_path_of_row(current_aft_row, &path);
962 if (ret < 0)
963 goto out;
964 ret = stat(path, &statbuf);
965 if (ret < 0)
966 goto out;
967 localtime_r(&statbuf.st_mtime, &mtime_tm);
968 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
969 assert(ret > 0); /* number of bytes placed in mtime_str */
970 out:
971 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
972 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
973 }
974
975 static int make_status_items(void)
976 {
977 struct ls_options opts = {
978 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
979 .mode = LS_MODE_VERBOSE,
980 };
981 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
982 time_t current_time;
983 int ret;
984
985 time(&current_time);
986 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
987 if (ret < 0)
988 return ret;
989 make_inode_status_items(&pb);
990 free(status_items);
991 status_items = pb.buf;
992 memset(&pb, 0, sizeof(pb));
993 pb.max_size = shm_get_shmmax() - 1;
994 pb.flags = PBF_SIZE_PREFIX;
995 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
996 if (ret < 0) {
997 free(status_items);
998 status_items = NULL;
999 return ret;
1000 }
1001 make_inode_status_items(&pb);
1002 free(parser_friendly_status_items);
1003 parser_friendly_status_items = pb.buf;
1004 return 1;
1005 }
1006
1007 /**
1008 * Open the audio file with highest score and set up an afd structure.
1009 *
1010 * \param afd Result pointer.
1011 *
1012 * On success, the numplayed field of the audio file selector info is increased
1013 * and the lastplayed time is set to the current time. Finally, the score of
1014 * the audio file is updated.
1015 *
1016 * \return Positive shmid on success, negative on errors.
1017 */
1018 int open_and_update_audio_file(struct audio_file_data *afd)
1019 {
1020 unsigned char file_hash[HASH_SIZE];
1021 struct osl_object afsi_obj;
1022 struct afs_info new_afsi;
1023 int ret;
1024 struct afsi_change_event_data aced;
1025 struct osl_object map, chunk_table_obj;
1026 struct ls_data *d = &status_item_ls_data;
1027 again:
1028 ret = score_get_best(&current_aft_row, &d->score);
1029 if (ret < 0)
1030 return ret;
1031 ret = get_hash_of_row(current_aft_row, &d->hash);
1032 if (ret < 0)
1033 return ret;
1034 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1035 if (ret < 0)
1036 return ret;
1037 PARA_NOTICE_LOG("%s\n", d->path);
1038 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1039 if (ret < 0)
1040 return ret;
1041 ret = load_afsi(&d->afsi, &afsi_obj);
1042 if (ret < 0)
1043 return ret;
1044 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1045 if (ret < 0)
1046 return ret;
1047 d->afhi = afd->afhi;
1048 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1049 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1050 AFTCOL_CHUNKS, &chunk_table_obj));
1051 if (ret < 0)
1052 return ret;
1053 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1054 if (ret < 0)
1055 goto out;
1056 hash_function(map.data, map.size, file_hash);
1057 ret = hash_compare(file_hash, d->hash);
1058 para_munmap(map.data, map.size);
1059 if (ret) {
1060 ret = -E_HASH_MISMATCH;
1061 goto out;
1062 }
1063 new_afsi = d->afsi;
1064 new_afsi.num_played++;
1065 new_afsi.last_played = time(NULL);
1066 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1067
1068 afd->audio_format_id = d->afsi.audio_format_id;
1069 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1070 aced.aft_row = current_aft_row;
1071 aced.old_afsi = &d->afsi;
1072 /*
1073 * No need to update the status items as the AFSI_CHANGE event will
1074 * recreate them.
1075 */
1076 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1077 if (ret < 0)
1078 goto out;
1079 ret = save_afd(afd);
1080 out:
1081 free(afd->afhi.chunk_table);
1082 osl_close_disk_object(&chunk_table_obj);
1083 if (ret < 0) {
1084 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1085 ret = score_delete(current_aft_row);
1086 if (ret >= 0)
1087 goto again;
1088 }
1089 return ret;
1090 }
1091
1092 static int ls_audio_format_compare(const void *a, const void *b)
1093 {
1094 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1095 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1096 }
1097
1098 static int ls_duration_compare(const void *a, const void *b)
1099 {
1100 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1101 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1102 }
1103
1104 static int ls_bitrate_compare(const void *a, const void *b)
1105 {
1106 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1107 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1108 }
1109
1110 static int ls_lyrics_id_compare(const void *a, const void *b)
1111 {
1112 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1113 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1114 }
1115
1116 static int ls_image_id_compare(const void *a, const void *b)
1117 {
1118 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1119 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1120 }
1121
1122 static int ls_channels_compare(const void *a, const void *b)
1123 {
1124 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1125 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1126 }
1127
1128 static int ls_frequency_compare(const void *a, const void *b)
1129 {
1130 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1131 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1132 }
1133
1134 static int ls_num_played_compare(const void *a, const void *b)
1135 {
1136 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1137 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1138 }
1139
1140 static int ls_last_played_compare(const void *a, const void *b)
1141 {
1142 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1143 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1144 }
1145
1146 static int ls_score_compare(const void *a, const void *b)
1147 {
1148 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1149 return NUM_COMPARE(d1->score, d2->score);
1150 }
1151
1152 static int ls_path_compare(const void *a, const void *b)
1153 {
1154 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1155 return strcmp(d1->path, d2->path);
1156 }
1157
1158 static int sort_matching_paths(struct ls_options *options)
1159 {
1160 size_t nmemb = options->num_matching_paths;
1161 size_t size = sizeof(*options->data_ptr);
1162 int (*compar)(const void *, const void *);
1163 int i;
1164
1165 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1166 for (i = 0; i < nmemb; i++)
1167 options->data_ptr[i] = options->data + i;
1168
1169 /* In these cases the array is already sorted */
1170 if (options->sorting == LS_SORT_BY_PATH
1171 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1172 && (options->flags & LS_FLAG_FULL_PATH))
1173 return 1;
1174 if (options->sorting == LS_SORT_BY_SCORE &&
1175 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1176 return 1;
1177
1178 switch (options->sorting) {
1179 case LS_SORT_BY_PATH:
1180 compar = ls_path_compare; break;
1181 case LS_SORT_BY_SCORE:
1182 compar = ls_score_compare; break;
1183 case LS_SORT_BY_LAST_PLAYED:
1184 compar = ls_last_played_compare; break;
1185 case LS_SORT_BY_NUM_PLAYED:
1186 compar = ls_num_played_compare; break;
1187 case LS_SORT_BY_FREQUENCY:
1188 compar = ls_frequency_compare; break;
1189 case LS_SORT_BY_CHANNELS:
1190 compar = ls_channels_compare; break;
1191 case LS_SORT_BY_IMAGE_ID:
1192 compar = ls_image_id_compare; break;
1193 case LS_SORT_BY_LYRICS_ID:
1194 compar = ls_lyrics_id_compare; break;
1195 case LS_SORT_BY_BITRATE:
1196 compar = ls_bitrate_compare; break;
1197 case LS_SORT_BY_DURATION:
1198 compar = ls_duration_compare; break;
1199 case LS_SORT_BY_AUDIO_FORMAT:
1200 compar = ls_audio_format_compare; break;
1201 default:
1202 return -E_BAD_SORT;
1203 }
1204 qsort(options->data_ptr, nmemb, size, compar);
1205 return 1;
1206 }
1207
1208 /* row is either an aft_row or a row of the score table */
1209 /* TODO: Only compute widths if we need them */
1210 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1211 {
1212 int ret, i;
1213 struct ls_options *options = ls_opts;
1214 struct ls_data *d;
1215 struct ls_widths *w;
1216 unsigned short num_digits;
1217 unsigned tmp;
1218 struct osl_row *aft_row;
1219 long score;
1220 char *path;
1221
1222 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1223 ret = get_score_and_aft_row(row, &score, &aft_row);
1224 if (ret < 0)
1225 return ret;
1226 } else {
1227 aft_row = row;
1228 score = 0;
1229 }
1230 ret = get_audio_file_path_of_row(aft_row, &path);
1231 if (ret < 0)
1232 return ret;
1233 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1234 char *p = strrchr(path, '/');
1235 if (p)
1236 path = p + 1;
1237 }
1238 if (options->num_patterns) {
1239 for (i = 0; i < options->num_patterns; i++) {
1240 ret = fnmatch(options->patterns[i], path, 0);
1241 if (!ret)
1242 break;
1243 if (ret == FNM_NOMATCH)
1244 continue;
1245 return -E_FNMATCH;
1246 }
1247 if (i >= options->num_patterns) /* no match */
1248 return 1;
1249 }
1250 tmp = options->num_matching_paths++;
1251 if (options->num_matching_paths > options->array_size) {
1252 options->array_size++;
1253 options->array_size *= 2;
1254 options->data = para_realloc(options->data, options->array_size
1255 * sizeof(*options->data));
1256 }
1257 d = options->data + tmp;
1258 ret = get_afsi_of_row(aft_row, &d->afsi);
1259 if (ret < 0)
1260 return ret;
1261 ret = get_afhi_of_row(aft_row, &d->afhi);
1262 if (ret < 0)
1263 return ret;
1264 d->path = path;
1265 ret = get_hash_of_row(aft_row, &d->hash);
1266 if (ret < 0)
1267 goto err;
1268 w = &options->widths;
1269 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1270 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1271 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1272 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1273 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1274 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1275 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1276 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1277 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1278 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1279 /* get the number of chars to print this amount of time */
1280 num_digits = get_duration_width(d->afhi.seconds_total);
1281 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1282 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1283 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1284 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1285 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1286 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1287 GET_NUM_DIGITS(score, &num_digits);
1288 num_digits++; /* add one for the sign (space or "-") */
1289 w->score_width = PARA_MAX(w->score_width, num_digits);
1290 d->score = score;
1291 }
1292 return 1;
1293 err:
1294 return ret;
1295 }
1296
1297 static int com_ls_callback(struct afs_callback_arg *aca)
1298 {
1299 struct ls_options *opts = aca->query.data;
1300 char *p, *pattern_start = (char *)aca->query.data + sizeof(*opts);
1301 int i = 0, ret;
1302 time_t current_time;
1303
1304 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1305 if (opts->num_patterns) {
1306 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1307 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1308 opts->patterns[i] = p;
1309 p += strlen(p) + 1;
1310 }
1311 } else
1312 opts->patterns = NULL;
1313 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1314 ret = admissible_file_loop(opts, prepare_ls_row);
1315 else
1316 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1317 prepare_ls_row));
1318 if (ret < 0)
1319 goto out;
1320 if (opts->num_matching_paths == 0) {
1321 ret = opts->num_patterns > 0? -E_NO_MATCH : 0;
1322 goto out;
1323 }
1324 ret = sort_matching_paths(opts);
1325 if (ret < 0)
1326 goto out;
1327 time(&current_time);
1328 if (opts->flags & LS_FLAG_REVERSE)
1329 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1330 ret = print_list_item(opts->data_ptr[i], opts,
1331 &aca->pbout, current_time);
1332 if (ret < 0)
1333 goto out;
1334 }
1335 else
1336 for (i = 0; i < opts->num_matching_paths; i++) {
1337 ret = print_list_item(opts->data_ptr[i], opts,
1338 &aca->pbout, current_time);
1339 if (ret < 0)
1340 goto out;
1341 }
1342 out:
1343 free(opts->data);
1344 free(opts->data_ptr);
1345 free(opts->patterns);
1346 return ret;
1347 }
1348
1349 /*
1350 * TODO: flags -h (sort by hash)
1351 */
1352 int com_ls(struct command_context *cc)
1353 {
1354 int i;
1355 unsigned flags = 0;
1356 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1357 enum ls_listing_mode mode = LS_MODE_SHORT;
1358 struct ls_options opts = {.patterns = NULL};
1359 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1360
1361 for (i = 1; i < cc->argc; i++) {
1362 const char *arg = cc->argv[i];
1363 if (arg[0] != '-')
1364 break;
1365 if (!strcmp(arg, "--")) {
1366 i++;
1367 break;
1368 }
1369 /*
1370 * Compatibility: Prior to 0.5.5 it was necessary to specify
1371 * the listing mode without the '=' character as in -lv, for
1372 * example. Now the variant with '=' is preferred and
1373 * documented but we still accept the old way to specify the
1374 * listing mode.
1375 *
1376 * Support for the legacy syntax can be dropped at 0.6.0
1377 * or later.
1378 */
1379 if (!strncmp(arg, "-l", 2)) {
1380 arg += 2;
1381 if (*arg == '=')
1382 arg++;
1383 switch (*arg) {
1384 case 's':
1385 mode = LS_MODE_SHORT;
1386 continue;
1387 case 'l':
1388 case '\0':
1389 mode = LS_MODE_LONG;
1390 continue;
1391 case 'v':
1392 mode = LS_MODE_VERBOSE;
1393 continue;
1394 case 'm':
1395 mode = LS_MODE_MBOX;
1396 continue;
1397 case 'c':
1398 mode = LS_MODE_CHUNKS;
1399 continue;
1400 case 'p':
1401 mode = LS_MODE_PARSER;
1402 continue;
1403 default:
1404 return -E_AFT_SYNTAX;
1405 }
1406 }
1407 if (!strcmp(arg, "-p")) {
1408 flags |= LS_FLAG_FULL_PATH;
1409 continue;
1410 }
1411 if (!strcmp(arg, "-a")) {
1412 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1413 continue;
1414 }
1415 if (!strcmp(arg, "-r")) {
1416 flags |= LS_FLAG_REVERSE;
1417 continue;
1418 }
1419 if (!strcmp(arg, "-d")) {
1420 flags |= LS_FLAG_UNIXDATE;
1421 continue;
1422 }
1423 /* The compatibility remark above applies also to -s. */
1424 if (!strncmp(arg, "-s", 2)) {
1425 arg += 2;
1426 if (*arg == '=')
1427 arg++;
1428 switch (*arg) {
1429 case 'p':
1430 sort = LS_SORT_BY_PATH;
1431 continue;
1432 case 's': /* -ss implies -a */
1433 sort = LS_SORT_BY_SCORE;
1434 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1435 continue;
1436 case 'l':
1437 sort = LS_SORT_BY_LAST_PLAYED;
1438 continue;
1439 case 'n':
1440 sort = LS_SORT_BY_NUM_PLAYED;
1441 continue;
1442 case 'f':
1443 sort = LS_SORT_BY_FREQUENCY;
1444 continue;
1445 case 'c':
1446 sort = LS_SORT_BY_CHANNELS;
1447 continue;
1448 case 'i':
1449 sort = LS_SORT_BY_IMAGE_ID;
1450 continue;
1451 case 'y':
1452 sort = LS_SORT_BY_LYRICS_ID;
1453 continue;
1454 case 'b':
1455 sort = LS_SORT_BY_BITRATE;
1456 continue;
1457 case 'd':
1458 sort = LS_SORT_BY_DURATION;
1459 continue;
1460 case 'a':
1461 sort = LS_SORT_BY_AUDIO_FORMAT;
1462 continue;
1463 default:
1464 return -E_AFT_SYNTAX;
1465 }
1466 }
1467 return -E_AFT_SYNTAX;
1468 }
1469 opts.flags = flags;
1470 opts.sorting = sort;
1471 opts.mode = mode;
1472 opts.num_patterns = cc->argc - i;
1473 return send_option_arg_callback_request(&query, opts.num_patterns,
1474 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1475 }
1476
1477 /**
1478 * Call the given function for each file in the audio file table.
1479 *
1480 * \param private_data An arbitrary data pointer, passed to \a func.
1481 * \param func The custom function to be called.
1482 *
1483 * \return Standard.
1484 */
1485 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1486 {
1487 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1488 func));
1489 }
1490
1491 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1492 {
1493 int ret = aft_get_row_of_hash(hash, result);
1494
1495 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1496 return 0;
1497 return ret;
1498 }
1499
1500 static int find_path_brother(const char *path, struct osl_row **result)
1501 {
1502 int ret = aft_get_row_of_path(path, result);
1503
1504 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1505 return 0;
1506 return ret;
1507 }
1508
1509 /** The format of the data stored by save_audio_file_data(). */
1510 enum com_add_buffer_offsets {
1511 /* afhi (if present) starts at this offset. */
1512 CAB_AFHI_OFFSET_POS = 0,
1513 /** Start of the chunk table (if present). */
1514 CAB_CHUNKS_OFFSET_POS = 4,
1515 /** Flags given to the add command. */
1516 CAB_FLAGS_OFFSET = 8,
1517 /** Audio format id. */
1518 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1519 /** The hash of the audio file being added. */
1520 CAB_HASH_OFFSET = 13,
1521 /** Start of the path of the audio file. */
1522 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1523 };
1524
1525 /*
1526 * Store the given data to a single buffer. Doesn't need the audio file selector
1527 * info struct as the server knows it as well.
1528 *
1529 * It's OK to call this with afhi == NULL. In this case, the audio format
1530 * handler info won't be stored in the buffer.
1531 */
1532 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1533 struct afh_info *afhi, uint32_t flags,
1534 uint8_t audio_format_num, struct osl_object *obj)
1535 {
1536 size_t path_len = strlen(path) + 1;
1537 size_t afhi_size = sizeof_afhi_buf(afhi);
1538 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1539 + sizeof_chunk_table(afhi);
1540 char *buf = para_malloc(size);
1541 uint32_t pos;
1542
1543 pos = CAB_PATH_OFFSET + path_len;
1544 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1545 save_afhi(afhi, buf + pos);
1546 pos += afhi_size;
1547
1548 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1549 if (afhi)
1550 save_chunk_table(afhi, buf + pos);
1551
1552 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1553 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1554
1555 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1556 strcpy(buf + CAB_PATH_OFFSET, path);
1557
1558 obj->data = buf;
1559 obj->size = size;
1560 }
1561
1562 /*
1563
1564 Overview of the add command.
1565
1566 Input: What was passed to the callback by the command handler.
1567 ~~~~~~
1568 HS: Hash sister. Whether an audio file with identical hash
1569 already exists in the osl database.
1570
1571 PB: Path brother. Whether a file with the given path exists
1572 in the table.
1573
1574 F: Force flag given. Whether add was called with -f.
1575
1576 output: Action performed by the callback.
1577 ~~~~~~~
1578 AFHI: Whether afhi and chunk table are computed and sent.
1579 ACTION: Table modifications to be done by the callback.
1580
1581 +----+----+---+------+---------------------------------------------------+
1582 | HS | PB | F | AFHI | ACTION
1583 +----+----+---+------+---------------------------------------------------+
1584 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1585 | | update path, keep afsi
1586 +----+----+---+------+---------------------------------------------------+
1587 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1588 | | otherwise: remove PB, HS: update path, keep afhi,
1589 | | afsi.
1590 +----+----+---+------+---------------------------------------------------+
1591 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1592 | | HS, keep afsi
1593 +----+----+---+------+---------------------------------------------------+
1594 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1595 +----+----+---+------+---------------------------------------------------+
1596 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1597 | | (force has no effect)
1598 +----+----+---+------+---------------------------------------------------+
1599 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1600 +----+----+---+------+---------------------------------------------------+
1601 | N | N | Y | Y | (new file) create new entry (force has no effect)
1602 +----+----+---+------+---------------------------------------------------+
1603 | N | N | N | Y | (new file) create new entry
1604 +----+----+---+------+---------------------------------------------------+
1605
1606 Notes:
1607
1608 afhi <=> force or no HS
1609 F => AFHI
1610
1611 */
1612
1613 /** Flags passed to the add command. */
1614 enum com_add_flags {
1615 /** Skip paths that exist already. */
1616 ADD_FLAG_LAZY = 1,
1617 /** Force adding. */
1618 ADD_FLAG_FORCE = 2,
1619 /** Print what is being done. */
1620 ADD_FLAG_VERBOSE = 4,
1621 /** Try to add files with unknown suffixes. */
1622 ADD_FLAG_ALL = 8,
1623 };
1624
1625 static int com_add_callback(struct afs_callback_arg *aca)
1626 {
1627 char *buf = aca->query.data, *path;
1628 struct osl_row *pb, *aft_row;
1629 struct osl_row *hs;
1630 struct osl_object objs[NUM_AFT_COLUMNS];
1631 unsigned char *hash;
1632 char asc[2 * HASH_SIZE + 1];
1633 int ret;
1634 char afsi_buf[AFSI_SIZE];
1635 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1636 struct afs_info default_afsi = {.last_played = 0};
1637 uint16_t afhi_offset, chunks_offset;
1638
1639 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1640 hash_to_asc(hash, asc);
1641 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1642 objs[AFTCOL_HASH].size = HASH_SIZE;
1643
1644 path = buf + CAB_PATH_OFFSET;
1645 objs[AFTCOL_PATH].data = path;
1646 objs[AFTCOL_PATH].size = strlen(path) + 1;
1647
1648 PARA_INFO_LOG("request to add %s\n", path);
1649 ret = find_hash_sister(hash, &hs);
1650 if (ret < 0)
1651 goto out;
1652 ret = find_path_brother(path, &pb);
1653 if (ret < 0)
1654 goto out;
1655 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1656 if (flags & ADD_FLAG_VERBOSE)
1657 para_printf(&aca->pbout, "ignoring duplicate\n");
1658 ret = 1;
1659 goto out;
1660 }
1661 if (hs && hs != pb) {
1662 struct osl_object obj;
1663 if (pb) { /* hs trumps pb, remove pb */
1664 if (flags & ADD_FLAG_VERBOSE)
1665 para_printf(&aca->pbout, "removing %s\n", path);
1666 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1667 if (ret < 0)
1668 goto out;
1669 ret = osl(osl_del_row(audio_file_table, pb));
1670 if (ret < 0)
1671 goto out;
1672 pb = NULL;
1673 }
1674 /* file rename, update hs' path */
1675 if (flags & ADD_FLAG_VERBOSE) {
1676 ret = osl(osl_get_object(audio_file_table, hs,
1677 AFTCOL_PATH, &obj));
1678 if (ret < 0)
1679 goto out;
1680 para_printf(&aca->pbout, "renamed from %s\n",
1681 (char *)obj.data);
1682 }
1683 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1684 &objs[AFTCOL_PATH]));
1685 if (ret < 0)
1686 goto out;
1687 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1688 if (ret < 0)
1689 goto out;
1690 if (!(flags & ADD_FLAG_FORCE))
1691 goto out;
1692 }
1693 /* no hs or force mode, child must have sent afhi */
1694 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1695 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1696
1697 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1698 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1699 ret = -E_NO_AFHI;
1700 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1701 goto out;
1702 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1703 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1704 if (pb && !hs) { /* update pb's hash */
1705 char old_asc[2 * HASH_SIZE + 1];
1706 unsigned char *old_hash;
1707 ret = get_hash_of_row(pb, &old_hash);
1708 if (ret < 0)
1709 goto out;
1710 hash_to_asc(old_hash, old_asc);
1711 if (flags & ADD_FLAG_VERBOSE)
1712 para_printf(&aca->pbout, "file change: %s -> %s\n",
1713 old_asc, asc);
1714 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1715 &objs[AFTCOL_HASH]);
1716 if (ret < 0)
1717 goto out;
1718 }
1719 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1720 struct osl_row *row = pb? pb : hs;
1721 /* update afhi and chunk_table */
1722 if (flags & ADD_FLAG_VERBOSE)
1723 para_printf(&aca->pbout,
1724 "updating afhi and chunk table\n");
1725 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1726 &objs[AFTCOL_AFHI]));
1727 if (ret < 0)
1728 goto out;
1729 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1730 &objs[AFTCOL_CHUNKS]));
1731 if (ret < 0)
1732 goto out;
1733 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1734 if (ret < 0)
1735 goto out;
1736 goto out;
1737 }
1738 /* new entry, use default afsi */
1739 if (flags & ADD_FLAG_VERBOSE)
1740 para_printf(&aca->pbout, "new file\n");
1741 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1742 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1743
1744 objs[AFTCOL_AFSI].data = &afsi_buf;
1745 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1746 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1747 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1748 if (ret < 0)
1749 goto out;
1750 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1751 out:
1752 if (ret < 0)
1753 para_printf(&aca->pbout, "could not add %s\n", path);
1754 return ret;
1755 }
1756
1757 /** Used by com_add(). */
1758 struct private_add_data {
1759 /** The pointer passed to the original command handler. */
1760 struct command_context *cc;
1761 /** The given add flags. */
1762 uint32_t flags;
1763 };
1764
1765 static int path_brother_callback(struct afs_callback_arg *aca)
1766 {
1767 char *path = aca->query.data;
1768 struct osl_row *path_brother;
1769 int ret = find_path_brother(path, &path_brother);
1770 if (ret <= 0)
1771 return ret;
1772 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1773 sizeof(path_brother));
1774 }
1775
1776 static int hash_sister_callback(struct afs_callback_arg *aca)
1777 {
1778 unsigned char *hash = aca->query.data;
1779 struct osl_row *hash_sister;
1780 int ret = find_hash_sister(hash, &hash_sister);
1781
1782 if (ret <= 0)
1783 return ret;
1784 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1785 sizeof(hash_sister));
1786 }
1787
1788 static int get_row_pointer_from_result(struct osl_object *result,
1789 __a_unused uint8_t band, void *private)
1790 {
1791 struct osl_row **row = private;
1792
1793 if (band == SBD_OUTPUT)
1794 *row = *(struct osl_row **)(result->data);
1795 return 1;
1796 }
1797
1798 static int add_one_audio_file(const char *path, void *private_data)
1799 {
1800 int ret, send_ret = 1, fd;
1801 uint8_t format_num = -1;
1802 struct private_add_data *pad = private_data;
1803 struct afh_info afhi, *afhi_ptr = NULL;
1804 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1805 struct osl_object map, obj = {.data = NULL}, query;
1806 unsigned char hash[HASH_SIZE];
1807
1808 ret = guess_audio_format(path);
1809 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1810 ret = 0;
1811 goto out_free;
1812 }
1813 query.data = (char *)path;
1814 query.size = strlen(path) + 1;
1815 ret = send_callback_request(path_brother_callback, &query,
1816 get_row_pointer_from_result, &pb);
1817 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1818 goto out_free;
1819 ret = 1;
1820 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1821 if (pad->flags & ADD_FLAG_VERBOSE)
1822 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1823 "lazy-ignore: %s\n", path);
1824 goto out_free;
1825 }
1826 /* We still want to add this file. Compute its hash. */
1827 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1828 if (ret < 0)
1829 goto out_free;
1830 hash_function(map.data, map.size, hash);
1831
1832 /* Check whether the database contains a file with the same hash. */
1833 query.data = hash;
1834 query.size = HASH_SIZE;
1835 ret = send_callback_request(hash_sister_callback, &query,
1836 get_row_pointer_from_result, &hs);
1837 if (ret < 0)
1838 goto out_unmap;
1839 /* Return success if we already know this file. */
1840 ret = 1;
1841 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1842 if (pad->flags & ADD_FLAG_VERBOSE)
1843 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1844 "%s exists, not forcing update\n", path);
1845 goto out_unmap;
1846 }
1847 /*
1848 * We won't recalculate the audio format info and the chunk table if
1849 * there is a hash sister and FORCE was not given.
1850 */
1851 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1852 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1853 if (ret < 0)
1854 goto out_unmap;
1855 format_num = ret;
1856 afhi_ptr = &afhi;
1857 }
1858 munmap(map.data, map.size);
1859 close(fd);
1860 if (pad->flags & ADD_FLAG_VERBOSE) {
1861 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1862 "adding %s\n", path);
1863 if (send_ret < 0)
1864 goto out_free;
1865 }
1866 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1867 /* Ask afs to consider this entry for adding. */
1868 ret = send_callback_request(com_add_callback, &obj,
1869 afs_cb_result_handler, pad->cc);
1870 goto out_free;
1871
1872 out_unmap:
1873 close(fd);
1874 munmap(map.data, map.size);
1875 out_free:
1876 if (ret < 0 && send_ret >= 0)
1877 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1878 "failed to add %s (%s)\n", path, para_strerror(-ret));
1879 free(obj.data);
1880 clear_afhi(afhi_ptr);
1881 /* Stop adding files only on send errors. */
1882 return send_ret;
1883 }
1884
1885 int com_add(struct command_context *cc)
1886 {
1887 int i, ret;
1888 struct private_add_data pad = {.cc = cc, .flags = 0};
1889
1890 for (i = 1; i < cc->argc; i++) {
1891 const char *arg = cc->argv[i];
1892 if (arg[0] != '-')
1893 break;
1894 if (!strcmp(arg, "--")) {
1895 i++;
1896 break;
1897 }
1898 if (!strcmp(arg, "-a")) {
1899 pad.flags |= ADD_FLAG_ALL;
1900 continue;
1901 }
1902 if (!strcmp(arg, "-l")) {
1903 pad.flags |= ADD_FLAG_LAZY;
1904 continue;
1905 }
1906 if (!strcmp(arg, "-f")) {
1907 pad.flags |= ADD_FLAG_FORCE;
1908 continue;
1909 }
1910 if (!strcmp(arg, "-v")) {
1911 pad.flags |= ADD_FLAG_VERBOSE;
1912 continue;
1913 }
1914 }
1915 if (cc->argc <= i)
1916 return -E_AFT_SYNTAX;
1917 for (; i < cc->argc; i++) {
1918 char *path;
1919 ret = verify_path(cc->argv[i], &path);
1920 if (ret < 0) {
1921 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1922 cc->argv[i], para_strerror(-ret));
1923 if (ret < 0)
1924 return ret;
1925 continue;
1926 }
1927 if (ret == 1) /* directory */
1928 ret = for_each_file_in_dir(path, add_one_audio_file,
1929 &pad);
1930 else /* regular file */
1931 ret = add_one_audio_file(path, &pad);
1932 if (ret < 0) {
1933 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1934 para_strerror(-ret));
1935 free(path);
1936 return ret;
1937 }
1938 free(path);
1939 }
1940 return 1;
1941 }
1942
1943 /**
1944 * Flags used by the touch command.
1945 *
1946 * \sa com_touch().
1947 */
1948 enum touch_flags {
1949 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1950 TOUCH_FLAG_FNM_PATHNAME = 1,
1951 /** Activates verbose mode. */
1952 TOUCH_FLAG_VERBOSE = 2
1953 };
1954
1955 /** Options used by com_touch(). */
1956 struct com_touch_options {
1957 /** New num_played value. */
1958 int32_t num_played;
1959 /** New last played count. */
1960 int64_t last_played;
1961 /** New lyrics id. */
1962 int32_t lyrics_id;
1963 /** New image id. */
1964 int32_t image_id;
1965 /** New amplification value. */
1966 int32_t amp;
1967 /** Command line flags (see \ref touch_flags). */
1968 unsigned flags;
1969 };
1970
1971 static int touch_audio_file(__a_unused struct osl_table *table,
1972 struct osl_row *row, const char *name, void *data)
1973 {
1974 struct afs_callback_arg *aca = data;
1975 struct com_touch_options *cto = aca->query.data;
1976 struct osl_object obj;
1977 struct afs_info old_afsi, new_afsi;
1978 int ret, no_options = cto->num_played < 0 && cto->last_played < 0 &&
1979 cto->lyrics_id < 0 && cto->image_id < 0 && cto->amp < 0;
1980 struct afsi_change_event_data aced;
1981
1982 ret = get_afsi_object_of_row(row, &obj);
1983 if (ret < 0) {
1984 para_printf(&aca->pbout, "cannot touch %s\n", name);
1985 return ret;
1986 }
1987 ret = load_afsi(&old_afsi, &obj);
1988 if (ret < 0) {
1989 para_printf(&aca->pbout, "cannot touch %s\n", name);
1990 return ret;
1991 }
1992 new_afsi = old_afsi;
1993 if (no_options) {
1994 new_afsi.num_played++;
1995 new_afsi.last_played = time(NULL);
1996 if (cto->flags & TOUCH_FLAG_VERBOSE)
1997 para_printf(&aca->pbout, "%s: num_played = %u, "
1998 "last_played = now()\n", name,
1999 new_afsi.num_played);
2000 } else {
2001 if (cto->flags & TOUCH_FLAG_VERBOSE)
2002 para_printf(&aca->pbout, "touching %s\n", name);
2003 if (cto->lyrics_id >= 0)
2004 new_afsi.lyrics_id = cto->lyrics_id;
2005 if (cto->image_id >= 0)
2006 new_afsi.image_id = cto->image_id;
2007 if (cto->num_played >= 0)
2008 new_afsi.num_played = cto->num_played;
2009 if (cto->last_played >= 0)
2010 new_afsi.last_played = cto->last_played;
2011 if (cto->amp >= 0)
2012 new_afsi.amp = cto->amp;
2013 }
2014 save_afsi(&new_afsi, &obj); /* in-place update */
2015 aced.aft_row = row;
2016 aced.old_afsi = &old_afsi;
2017 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
2018 }
2019
2020 static int com_touch_callback(struct afs_callback_arg *aca)
2021 {
2022 int ret;
2023 struct com_touch_options *cto = aca->query.data;
2024 struct pattern_match_data pmd = {
2025 .table = audio_file_table,
2026 .loop_col_num = AFTCOL_HASH,
2027 .match_col_num = AFTCOL_PATH,
2028 .patterns = {
2029 .data = (char *)aca->query.data
2030 + sizeof(struct com_touch_options),
2031 .size = aca->query.size
2032 - sizeof(struct com_touch_options)
2033 },
2034 .data = aca,
2035 .action = touch_audio_file
2036 };
2037 if (cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2038 pmd.fnmatch_flags |= FNM_PATHNAME;
2039 ret = for_each_matching_row(&pmd);
2040 if (ret >= 0 && pmd.num_matches == 0)
2041 ret = -E_NO_MATCH;
2042 return ret;
2043 }
2044
2045 int com_touch(struct command_context *cc)
2046 {
2047 struct com_touch_options cto = {
2048 .num_played = -1,
2049 .last_played = -1,
2050 .lyrics_id = -1,
2051 .image_id = -1,
2052 .amp = -1,
2053 };
2054 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2055 int i, ret;
2056
2057
2058 for (i = 1; i < cc->argc; i++) {
2059 const char *arg = cc->argv[i];
2060 if (arg[0] != '-')
2061 break;
2062 if (!strcmp(arg, "--")) {
2063 i++;
2064 break;
2065 }
2066 if (!strncmp(arg, "-n=", 3)) {
2067 ret = para_atoi32(arg + 3, &cto.num_played);
2068 if (ret < 0)
2069 return ret;
2070 continue;
2071 }
2072 if (!strncmp(arg, "-l=", 3)) {
2073 ret = para_atoi64(arg + 3, &cto.last_played);
2074 if (ret < 0)
2075 return ret;
2076 continue;
2077 }
2078 if (!strncmp(arg, "-y=", 3)) {
2079 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2080 if (ret < 0)
2081 return ret;
2082 continue;
2083 }
2084 if (!strncmp(arg, "-i=", 3)) {
2085 ret = para_atoi32(arg + 3, &cto.image_id);
2086 if (ret < 0)
2087 return ret;
2088 continue;
2089 }
2090 if (!strncmp(arg, "-a=", 3)) {
2091 int32_t val;
2092 ret = para_atoi32(arg + 3, &val);
2093 if (ret < 0)
2094 return ret;
2095 if (val < 0 || val > 255)
2096 return -ERRNO_TO_PARA_ERROR(EINVAL);
2097 cto.amp = val;
2098 continue;
2099 }
2100 if (!strcmp(arg, "-p")) {
2101 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2102 continue;
2103 }
2104 if (!strcmp(arg, "-v")) {
2105 cto.flags |= TOUCH_FLAG_VERBOSE;
2106 continue;
2107 }
2108 break; /* non-option starting with dash */
2109 }
2110 if (i >= cc->argc)
2111 return -E_AFT_SYNTAX;
2112 return send_option_arg_callback_request(&query, cc->argc - i,
2113 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2114 }
2115
2116 /** Flags for com_rm(). */
2117 enum rm_flags {
2118 /** -v */
2119 RM_FLAG_VERBOSE = 1,
2120 /** -f */
2121 RM_FLAG_FORCE = 2,
2122 /** -p */
2123 RM_FLAG_FNM_PATHNAME = 4
2124 };
2125
2126 static int remove_audio_file(__a_unused struct osl_table *table,
2127 struct osl_row *row, const char *name, void *data)
2128 {
2129 struct afs_callback_arg *aca = data;
2130 uint32_t flags =*(uint32_t *)aca->query.data;
2131 int ret;
2132
2133 if (flags & RM_FLAG_VERBOSE)
2134 para_printf(&aca->pbout, "removing %s\n", name);
2135 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2136 if (ret < 0)
2137 return ret;
2138 ret = osl(osl_del_row(audio_file_table, row));
2139 if (ret < 0)
2140 para_printf(&aca->pbout, "cannot remove %s\n", name);
2141 return ret;
2142 }
2143
2144 static int com_rm_callback(struct afs_callback_arg *aca)
2145 {
2146 int ret;
2147 uint32_t flags = *(uint32_t *)aca->query.data;
2148 struct pattern_match_data pmd = {
2149 .table = audio_file_table,
2150 .loop_col_num = AFTCOL_HASH,
2151 .match_col_num = AFTCOL_PATH,
2152 .patterns = {.data = (char *)aca->query.data + sizeof(uint32_t),
2153 .size = aca->query.size - sizeof(uint32_t)},
2154 .data = aca,
2155 .action = remove_audio_file
2156 };
2157 if (flags & RM_FLAG_FNM_PATHNAME)
2158 pmd.fnmatch_flags |= FNM_PATHNAME;
2159 ret = for_each_matching_row(&pmd);
2160 if (ret < 0)
2161 goto out;
2162 if (pmd.num_matches == 0) {
2163 if (!(flags & RM_FLAG_FORCE))
2164 ret = -E_NO_MATCH;
2165 } else if (flags & RM_FLAG_VERBOSE)
2166 para_printf(&aca->pbout, "removed %u file(s)\n",
2167 pmd.num_matches);
2168 out:
2169 return ret;
2170 }
2171
2172 /* TODO options: -r (recursive) */
2173 int com_rm(struct command_context *cc)
2174 {
2175 uint32_t flags = 0;
2176 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2177 int i;
2178
2179 for (i = 1; i < cc->argc; i++) {
2180 const char *arg = cc->argv[i];
2181 if (arg[0] != '-')
2182 break;
2183 if (!strcmp(arg, "--")) {
2184 i++;
2185 break;
2186 }
2187 if (!strcmp(arg, "-f")) {
2188 flags |= RM_FLAG_FORCE;
2189 continue;
2190 }
2191 if (!strcmp(arg, "-p")) {
2192 flags |= RM_FLAG_FNM_PATHNAME;
2193 continue;
2194 }
2195 if (!strcmp(arg, "-v")) {
2196 flags |= RM_FLAG_VERBOSE;
2197 continue;
2198 }
2199 break;
2200 }
2201 if (i >= cc->argc)
2202 return -E_AFT_SYNTAX;
2203 return send_option_arg_callback_request(&query, cc->argc - i,
2204 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2205 }
2206
2207 /**
2208 * Flags used by the cpsi command.
2209 *
2210 * \sa com_cpsi().
2211 */
2212 enum cpsi_flags {
2213 /** Whether the lyrics id should be copied. */
2214 CPSI_FLAG_COPY_LYRICS_ID = 1,
2215 /** Whether the image id should be copied. */
2216 CPSI_FLAG_COPY_IMAGE_ID = 2,
2217 /** Whether the lastplayed time should be copied. */
2218 CPSI_FLAG_COPY_LASTPLAYED = 4,
2219 /** Whether the numplayed count should be copied. */
2220 CPSI_FLAG_COPY_NUMPLAYED = 8,
2221 /** Whether the attributes should be copied. */
2222 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2223 /** Activates verbose mode. */
2224 CPSI_FLAG_VERBOSE = 32,
2225 };
2226
2227 /** Data passed to the action handler of com_cpsi(). */
2228 struct cpsi_action_data {
2229 /** command line flags (see \ref cpsi_flags). */
2230 unsigned flags;
2231 /** Values are copied from here. */
2232 struct afs_info source_afsi;
2233 /** What was passed to com_cpsi_callback(). */
2234 struct afs_callback_arg *aca;
2235 };
2236
2237 static int copy_selector_info(__a_unused struct osl_table *table,
2238 struct osl_row *row, const char *name, void *data)
2239 {
2240 struct cpsi_action_data *cad = data;
2241 struct osl_object target_afsi_obj;
2242 int ret;
2243 struct afs_info old_afsi, target_afsi;
2244 struct afsi_change_event_data aced;
2245
2246 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2247 if (ret < 0)
2248 return ret;
2249 load_afsi(&target_afsi, &target_afsi_obj);
2250 old_afsi = target_afsi;
2251 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2252 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2253 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2254 target_afsi.image_id = cad->source_afsi.image_id;
2255 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2256 target_afsi.last_played = cad->source_afsi.last_played;
2257 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2258 target_afsi.num_played = cad->source_afsi.num_played;
2259 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2260 target_afsi.attributes = cad->source_afsi.attributes;
2261 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2262 if (cad->flags & CPSI_FLAG_VERBOSE)
2263 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2264 aced.aft_row = row;
2265 aced.old_afsi = &old_afsi;
2266 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2267 }
2268
2269 static int com_cpsi_callback(struct afs_callback_arg *aca)
2270 {
2271 struct cpsi_action_data cad = {
2272 .flags = *(unsigned *)aca->query.data,
2273 .aca = aca
2274 };
2275 int ret;
2276 char *source_path = (char *)aca->query.data + sizeof(cad.flags);
2277 struct pattern_match_data pmd = {
2278 .table = audio_file_table,
2279 .loop_col_num = AFTCOL_HASH,
2280 .match_col_num = AFTCOL_PATH,
2281 .patterns = {.data = source_path + strlen(source_path) + 1,
2282 .size = aca->query.size - sizeof(cad.flags)
2283 - strlen(source_path) - 1},
2284 .data = &cad,
2285 .action = copy_selector_info
2286 };
2287
2288 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2289 if (ret < 0)
2290 goto out;
2291 ret = for_each_matching_row(&pmd);
2292 if (ret < 0)
2293 goto out;
2294 if (pmd.num_matches > 0) {
2295 if (cad.flags & CPSI_FLAG_VERBOSE)
2296 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2297 pmd.num_matches);
2298 } else
2299 ret = -E_NO_MATCH;
2300 out:
2301 return ret;
2302 }
2303
2304 int com_cpsi(struct command_context *cc)
2305 {
2306 unsigned flags = 0;
2307 int i;
2308 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2309
2310 for (i = 1; i < cc->argc; i++) {
2311 const char *arg = cc->argv[i];
2312 if (arg[0] != '-')
2313 break;
2314 if (!strcmp(arg, "--")) {
2315 i++;
2316 break;
2317 }
2318 if (!strcmp(arg, "-y")) {
2319 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2320 continue;
2321 }
2322 if (!strcmp(arg, "-i")) {
2323 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2324 continue;
2325 }
2326 if (!strcmp(arg, "-l")) {
2327 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2328 continue;
2329 }
2330 if (!strcmp(arg, "-n")) {
2331 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2332 continue;
2333 }
2334 if (!strcmp(arg, "-a")) {
2335 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2336 continue;
2337 }
2338 if (!strcmp(arg, "-v")) {
2339 flags |= CPSI_FLAG_VERBOSE;
2340 continue;
2341 }
2342 break;
2343 }
2344 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2345 return -E_AFT_SYNTAX;
2346 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2347 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2348 return send_option_arg_callback_request(&options, cc->argc - i,
2349 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2350 }
2351
2352 struct change_atts_data {
2353 uint64_t add_mask, del_mask;
2354 struct afs_callback_arg *aca;
2355 };
2356
2357 static int change_atts(__a_unused struct osl_table *table,
2358 struct osl_row *row, __a_unused const char *name, void *data)
2359 {
2360 int ret;
2361 struct osl_object obj;
2362 struct afs_info old_afsi, new_afsi;
2363 struct afsi_change_event_data aced = {
2364 .aft_row = row,
2365 .old_afsi = &old_afsi
2366 };
2367 struct change_atts_data *cad = data;
2368
2369 ret = get_afsi_object_of_row(row, &obj);
2370 if (ret < 0)
2371 return ret;
2372 ret = load_afsi(&old_afsi, &obj);
2373 if (ret < 0)
2374 return ret;
2375 new_afsi = old_afsi;
2376 new_afsi.attributes |= cad->add_mask;
2377 new_afsi.attributes &= ~cad->del_mask;
2378 save_afsi(&new_afsi, &obj); /* in-place update */
2379 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2380 }
2381
2382 static int com_setatt_callback(struct afs_callback_arg *aca)
2383 {
2384 char *p;
2385 int ret;
2386 size_t len;
2387 struct change_atts_data cad = {.aca = aca};
2388 struct pattern_match_data pmd = {
2389 .table = audio_file_table,
2390 .loop_col_num = AFTCOL_HASH,
2391 .match_col_num = AFTCOL_PATH,
2392 .pm_flags = PM_SKIP_EMPTY_NAME,
2393 .data = &cad,
2394 .action = change_atts
2395 };
2396
2397 for (
2398 p = aca->query.data;
2399 p < (char *)aca->query.data + aca->query.size;
2400 p += len + 1
2401 ) {
2402 char c;
2403 unsigned char bitnum;
2404 uint64_t one = 1;
2405
2406 len = strlen(p);
2407 ret = -E_ATTR_SYNTAX;
2408 if (len == 0)
2409 goto out;
2410 c = p[len - 1];
2411 if (c != '+' && c != '-')
2412 break;
2413 p[len - 1] = '\0';
2414 ret = get_attribute_bitnum_by_name(p, &bitnum);
2415 if (ret < 0) {
2416 para_printf(&aca->pbout, "attribute not found: %s\n", p);
2417 goto out;
2418 }
2419 if (c == '+')
2420 cad.add_mask |= (one << bitnum);
2421 else
2422 cad.del_mask |= (one << bitnum);
2423 }
2424 ret = -E_ATTR_SYNTAX;
2425 if (!cad.add_mask && !cad.del_mask)
2426 goto out;
2427 pmd.patterns.data = p;
2428 if (p >= (char *)aca->query.data + aca->query.size)
2429 goto out;
2430 pmd.patterns.size = (char *)aca->query.data + aca->query.size - p;
2431 ret = for_each_matching_row(&pmd);
2432 if (ret < 0)
2433 goto out;
2434 if (pmd.num_matches == 0)
2435 ret = -E_NO_MATCH;
2436 out:
2437 return ret;
2438 }
2439
2440 int com_setatt(struct command_context *cc)
2441 {
2442 if (cc->argc < 3)
2443 return -E_ATTR_SYNTAX;
2444 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2445 com_setatt_callback, afs_cb_result_handler, cc);
2446 }
2447
2448 static int afs_stat_callback(struct afs_callback_arg *aca)
2449 {
2450 int *parser_friendly = aca->query.data;
2451 char *buf = *parser_friendly?
2452 parser_friendly_status_items : status_items;
2453
2454 if (!buf)
2455 return 0;
2456 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2457 }
2458
2459 /**
2460 * Get the current afs status items from the afs process and send it.
2461 *
2462 * \param cc The command context, used e.g. for data encryption.
2463 * \param parser_friendly Whether parser-friendly output format should be used.
2464 *
2465 * As the contents of the afs status items change in time and the command
2466 * handler only has a COW version created at fork time, it can not send
2467 * up-to-date afs status items directly. Therefore the usual callback mechanism
2468 * is used to pass the status items from the afs process to the command handler
2469 * via a shared memory area and a pipe.
2470 *
2471 * \return The return value of the underlying call to \ref send_callback_request().
2472 */
2473 int send_afs_status(struct command_context *cc, int parser_friendly)
2474 {
2475 struct osl_object query = {.data = &parser_friendly,
2476 .size = sizeof(parser_friendly)};
2477
2478 return send_callback_request(afs_stat_callback, &query,
2479 afs_cb_result_handler, cc);
2480 }
2481
2482 /* returns success on non-fatal errors to keep the loop going */
2483 static int check_audio_file(struct osl_row *row, void *data)
2484 {
2485 char *path;
2486 struct para_buffer *pb = data;
2487 struct stat statbuf;
2488 int ret = get_audio_file_path_of_row(row, &path);
2489 struct afs_info afsi;
2490 char *blob_name;
2491
2492 if (ret < 0) {
2493 para_printf(pb, "%s\n", para_strerror(-ret));
2494 return ret;
2495 }
2496 if (stat(path, &statbuf) < 0)
2497 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2498 else if (!S_ISREG(statbuf.st_mode))
2499 para_printf(pb, "%s: not a regular file\n", path);
2500 ret = get_afsi_of_row(row, &afsi);
2501 if (ret < 0) {
2502 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2503 return 1;
2504 }
2505 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2506 if (ret < 0)
2507 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2508 para_strerror(-ret));
2509 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2510 if (ret < 0)
2511 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2512 para_strerror(-ret));
2513 return 0;
2514 }
2515
2516 /**
2517 * Check the audio file table for inconsistencies.
2518 *
2519 * \param aca Only ->pbout is used for diagnostics.
2520 *
2521 * \return Standard. Inconsistencies are reported but not regarded as an error.
2522 *
2523 * \sa com_check().
2524 */
2525 int aft_check_callback(struct afs_callback_arg *aca)
2526 {
2527 para_printf(&aca->pbout, "checking audio file table...\n");
2528 return audio_file_loop(&aca->pbout, check_audio_file);
2529 }
2530
2531 struct aft_check_atts_data {
2532 uint64_t att_mask;
2533 struct para_buffer *pb;
2534 };
2535
2536 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2537 {
2538 struct aft_check_atts_data *acad = data;
2539 int ret;
2540 struct afs_info afsi;
2541 char *path;
2542 uint64_t bad_bits;
2543
2544 ret = get_afsi_of_row(row, &afsi);
2545 if (ret < 0) {
2546 para_printf(acad->pb, "cannot get afsi\n");
2547 return ret;
2548 }
2549 bad_bits = afsi.attributes & ~acad->att_mask;
2550 if (bad_bits == 0) /* OK */
2551 return 0;
2552 ret = get_audio_file_path_of_row(row, &path);
2553 if (ret < 0) {
2554 para_printf(acad->pb, "cannot get path\n");
2555 return ret;
2556 }
2557 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2558 bad_bits, path);
2559 /* return success to keep looping */
2560 return 1;
2561 }
2562
2563 /**
2564 * Iterate over all audio files and check the attribute bit mask.
2565 *
2566 * \param att_mask The mask of all valid attributes.
2567 * \param pb Used for reporting inconsistencies.
2568 *
2569 * This reads the attribute bit mask of each audio file from the afs info
2570 * structure stored in the audio file table and verifies that all set bits are
2571 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2572 * attribute table. Audio files for which this is not the case are reported via
2573 * \a pb.
2574 *
2575 * \return Standard. Inconsistencies are not regarded as errors.
2576 *
2577 * \sa \ref attribute_check_callback().
2578 */
2579 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2580 {
2581 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2582
2583 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2584 return audio_file_loop(&acad, check_atts_of_audio_file);
2585 }
2586
2587 /**
2588 * Close the audio file table.
2589 *
2590 * \param flags Usual flags that are passed to osl_close_table().
2591 *
2592 * \sa osl_close_table().
2593 */
2594 static void aft_close(void)
2595 {
2596 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2597 audio_file_table = NULL;
2598 }
2599
2600 /**
2601 * Open the audio file table.
2602 *
2603 * \param dir The database directory.
2604 *
2605 * \return Standard.
2606 *
2607 * \sa osl_open_table().
2608 */
2609 static int aft_open(const char *dir)
2610 {
2611 int ret;
2612
2613 audio_file_table_desc.dir = dir;
2614 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2615 if (ret >= 0) {
2616 unsigned num;
2617 osl_get_num_rows(audio_file_table, &num);
2618 PARA_INFO_LOG("audio file table contains %d files\n", num);
2619 return ret;
2620 }
2621 PARA_NOTICE_LOG("failed to open audio file table\n");
2622 audio_file_table = NULL;
2623 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2624 return 1;
2625 return ret;
2626 }
2627
2628 static int aft_create(const char *dir)
2629 {
2630 audio_file_table_desc.dir = dir;
2631 return osl(osl_create_table(&audio_file_table_desc));
2632 }
2633
2634 static int clear_attribute(struct osl_row *row, void *data)
2635 {
2636 struct rmatt_event_data *red = data;
2637 struct afs_info afsi;
2638 struct osl_object obj;
2639 int ret = get_afsi_object_of_row(row, &obj);
2640 uint64_t mask = ~(1ULL << red->bitnum);
2641
2642 if (ret < 0)
2643 return ret;
2644 ret = load_afsi(&afsi, &obj);
2645 if (ret < 0)
2646 return ret;
2647 afsi.attributes &= mask;
2648 save_afsi(&afsi, &obj);
2649 return 1;
2650 }
2651
2652 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2653 void *data)
2654 {
2655 int ret;
2656
2657 switch (event) {
2658 case ATTRIBUTE_REMOVE: {
2659 const struct rmatt_event_data *red = data;
2660 para_printf(pb, "clearing attribute %s (bit %u) from all "
2661 "entries in the audio file table\n", red->name,
2662 red->bitnum);
2663 return audio_file_loop(data, clear_attribute);
2664 } case AFSI_CHANGE: {
2665 struct afsi_change_event_data *aced = data;
2666 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2667 if (aced->aft_row != current_aft_row)
2668 return 0;
2669 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2670 if (ret < 0)
2671 return ret;
2672 status_item_ls_data.afsi.last_played = old_last_played;
2673 make_status_items();
2674 return 1;
2675 } case AFHI_CHANGE: {
2676 if (data != current_aft_row)
2677 return 0;
2678 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2679 if (ret < 0)
2680 return ret;
2681 make_status_items();
2682 return 1;
2683 } default:
2684 return 0;
2685 }
2686 }
2687
2688 /**
2689 * Initialize the audio file table.
2690 *
2691 * \param t Pointer to the structure to be initialized.
2692 */
2693 void aft_init(struct afs_table *t)
2694 {
2695 t->open = aft_open;
2696 t->close = aft_close;
2697 t->create = aft_create;
2698 t->event_handler = aft_event_handler;
2699 }