35e513ffb8a76c099544ac865742810caac10abc
[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, "%lu\n", afhi->seconds_total);
925 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
926 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
927 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
928 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
929 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n", afhi->chunks_total);
930 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
931 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
932 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
933 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
934 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
935 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
936 if (opts->mode == LS_MODE_MBOX) {
937 struct osl_object lyrics_def;
938 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
939 if (lyrics_def.data) {
940 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
941 (char *)lyrics_def.data);
942 osl_close_disk_object(&lyrics_def);
943 }
944 }
945 out:
946 return ret;
947 }
948
949 static struct ls_data status_item_ls_data;
950 static struct osl_row *current_aft_row;
951
952 static void make_inode_status_items(struct para_buffer *pb)
953 {
954 struct stat statbuf = {.st_size = 0};
955 char *path, mtime_str[30] = "\0";
956 struct tm mtime_tm;
957 int ret;
958
959 ret = get_audio_file_path_of_row(current_aft_row, &path);
960 if (ret < 0)
961 goto out;
962 ret = stat(path, &statbuf);
963 if (ret < 0)
964 goto out;
965 localtime_r(&statbuf.st_mtime, &mtime_tm);
966 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
967 assert(ret > 0); /* number of bytes placed in mtime_str */
968 out:
969 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
970 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
971 }
972
973 static int make_status_items(void)
974 {
975 struct ls_options opts = {
976 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
977 .mode = LS_MODE_VERBOSE,
978 };
979 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
980 time_t current_time;
981 int ret;
982
983 time(&current_time);
984 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
985 if (ret < 0)
986 return ret;
987 make_inode_status_items(&pb);
988 free(status_items);
989 status_items = pb.buf;
990 memset(&pb, 0, sizeof(pb));
991 pb.max_size = shm_get_shmmax() - 1;
992 pb.flags = PBF_SIZE_PREFIX;
993 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
994 if (ret < 0) {
995 free(status_items);
996 status_items = NULL;
997 return ret;
998 }
999 make_inode_status_items(&pb);
1000 free(parser_friendly_status_items);
1001 parser_friendly_status_items = pb.buf;
1002 return 1;
1003 }
1004
1005 /**
1006 * Open the audio file with highest score and set up an afd structure.
1007 *
1008 * \param afd Result pointer.
1009 *
1010 * On success, the numplayed field of the audio file selector info is increased
1011 * and the lastplayed time is set to the current time. Finally, the score of
1012 * the audio file is updated.
1013 *
1014 * \return Positive shmid on success, negative on errors.
1015 */
1016 int open_and_update_audio_file(struct audio_file_data *afd)
1017 {
1018 unsigned char file_hash[HASH_SIZE];
1019 struct osl_object afsi_obj;
1020 struct afs_info new_afsi;
1021 int ret;
1022 struct afsi_change_event_data aced;
1023 struct osl_object map, chunk_table_obj;
1024 struct ls_data *d = &status_item_ls_data;
1025 again:
1026 ret = score_get_best(&current_aft_row, &d->score);
1027 if (ret < 0)
1028 return ret;
1029 ret = get_hash_of_row(current_aft_row, &d->hash);
1030 if (ret < 0)
1031 return ret;
1032 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1033 if (ret < 0)
1034 return ret;
1035 PARA_NOTICE_LOG("%s\n", d->path);
1036 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1037 if (ret < 0)
1038 return ret;
1039 ret = load_afsi(&d->afsi, &afsi_obj);
1040 if (ret < 0)
1041 return ret;
1042 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1043 if (ret < 0)
1044 return ret;
1045 d->afhi = afd->afhi;
1046 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1047 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1048 AFTCOL_CHUNKS, &chunk_table_obj));
1049 if (ret < 0)
1050 return ret;
1051 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1052 if (ret < 0)
1053 goto out;
1054 hash_function(map.data, map.size, file_hash);
1055 ret = hash_compare(file_hash, d->hash);
1056 para_munmap(map.data, map.size);
1057 if (ret) {
1058 ret = -E_HASH_MISMATCH;
1059 goto out;
1060 }
1061 new_afsi = d->afsi;
1062 new_afsi.num_played++;
1063 new_afsi.last_played = time(NULL);
1064 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1065
1066 afd->audio_format_id = d->afsi.audio_format_id;
1067 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1068 aced.aft_row = current_aft_row;
1069 aced.old_afsi = &d->afsi;
1070 /*
1071 * No need to update the status items as the AFSI_CHANGE event will
1072 * recreate them.
1073 */
1074 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1075 if (ret < 0)
1076 goto out;
1077 ret = save_afd(afd);
1078 out:
1079 free(afd->afhi.chunk_table);
1080 osl_close_disk_object(&chunk_table_obj);
1081 if (ret < 0) {
1082 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1083 ret = score_delete(current_aft_row);
1084 if (ret >= 0)
1085 goto again;
1086 }
1087 return ret;
1088 }
1089
1090 static int ls_audio_format_compare(const void *a, const void *b)
1091 {
1092 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1093 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1094 }
1095
1096 static int ls_duration_compare(const void *a, const void *b)
1097 {
1098 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1099 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1100 }
1101
1102 static int ls_bitrate_compare(const void *a, const void *b)
1103 {
1104 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1105 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1106 }
1107
1108 static int ls_lyrics_id_compare(const void *a, const void *b)
1109 {
1110 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1111 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1112 }
1113
1114 static int ls_image_id_compare(const void *a, const void *b)
1115 {
1116 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1117 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1118 }
1119
1120 static int ls_channels_compare(const void *a, const void *b)
1121 {
1122 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1123 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1124 }
1125
1126 static int ls_frequency_compare(const void *a, const void *b)
1127 {
1128 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1129 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1130 }
1131
1132 static int ls_num_played_compare(const void *a, const void *b)
1133 {
1134 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1135 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1136 }
1137
1138 static int ls_last_played_compare(const void *a, const void *b)
1139 {
1140 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1141 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1142 }
1143
1144 static int ls_score_compare(const void *a, const void *b)
1145 {
1146 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1147 return NUM_COMPARE(d1->score, d2->score);
1148 }
1149
1150 static int ls_path_compare(const void *a, const void *b)
1151 {
1152 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1153 return strcmp(d1->path, d2->path);
1154 }
1155
1156 static int sort_matching_paths(struct ls_options *options)
1157 {
1158 size_t nmemb = options->num_matching_paths;
1159 size_t size = sizeof(*options->data_ptr);
1160 int (*compar)(const void *, const void *);
1161 int i;
1162
1163 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1164 for (i = 0; i < nmemb; i++)
1165 options->data_ptr[i] = options->data + i;
1166
1167 /* In these cases the array is already sorted */
1168 if (options->sorting == LS_SORT_BY_PATH
1169 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1170 && (options->flags & LS_FLAG_FULL_PATH))
1171 return 1;
1172 if (options->sorting == LS_SORT_BY_SCORE &&
1173 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1174 return 1;
1175
1176 switch (options->sorting) {
1177 case LS_SORT_BY_PATH:
1178 compar = ls_path_compare; break;
1179 case LS_SORT_BY_SCORE:
1180 compar = ls_score_compare; break;
1181 case LS_SORT_BY_LAST_PLAYED:
1182 compar = ls_last_played_compare; break;
1183 case LS_SORT_BY_NUM_PLAYED:
1184 compar = ls_num_played_compare; break;
1185 case LS_SORT_BY_FREQUENCY:
1186 compar = ls_frequency_compare; break;
1187 case LS_SORT_BY_CHANNELS:
1188 compar = ls_channels_compare; break;
1189 case LS_SORT_BY_IMAGE_ID:
1190 compar = ls_image_id_compare; break;
1191 case LS_SORT_BY_LYRICS_ID:
1192 compar = ls_lyrics_id_compare; break;
1193 case LS_SORT_BY_BITRATE:
1194 compar = ls_bitrate_compare; break;
1195 case LS_SORT_BY_DURATION:
1196 compar = ls_duration_compare; break;
1197 case LS_SORT_BY_AUDIO_FORMAT:
1198 compar = ls_audio_format_compare; break;
1199 default:
1200 return -E_BAD_SORT;
1201 }
1202 qsort(options->data_ptr, nmemb, size, compar);
1203 return 1;
1204 }
1205
1206 /* row is either an aft_row or a row of the score table */
1207 /* TODO: Only compute widths if we need them */
1208 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1209 {
1210 int ret, i;
1211 struct ls_options *options = ls_opts;
1212 struct ls_data *d;
1213 struct ls_widths *w;
1214 unsigned short num_digits;
1215 unsigned tmp;
1216 struct osl_row *aft_row;
1217 long score;
1218 char *path;
1219
1220 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1221 ret = get_score_and_aft_row(row, &score, &aft_row);
1222 if (ret < 0)
1223 return ret;
1224 } else {
1225 aft_row = row;
1226 score = 0;
1227 }
1228 ret = get_audio_file_path_of_row(aft_row, &path);
1229 if (ret < 0)
1230 return ret;
1231 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1232 char *p = strrchr(path, '/');
1233 if (p)
1234 path = p + 1;
1235 }
1236 if (options->num_patterns) {
1237 for (i = 0; i < options->num_patterns; i++) {
1238 ret = fnmatch(options->patterns[i], path, 0);
1239 if (!ret)
1240 break;
1241 if (ret == FNM_NOMATCH)
1242 continue;
1243 return -E_FNMATCH;
1244 }
1245 if (i >= options->num_patterns) /* no match */
1246 return 1;
1247 }
1248 tmp = options->num_matching_paths++;
1249 if (options->num_matching_paths > options->array_size) {
1250 options->array_size++;
1251 options->array_size *= 2;
1252 options->data = para_realloc(options->data, options->array_size
1253 * sizeof(*options->data));
1254 }
1255 d = options->data + tmp;
1256 ret = get_afsi_of_row(aft_row, &d->afsi);
1257 if (ret < 0)
1258 return ret;
1259 ret = get_afhi_of_row(aft_row, &d->afhi);
1260 if (ret < 0)
1261 return ret;
1262 d->path = path;
1263 ret = get_hash_of_row(aft_row, &d->hash);
1264 if (ret < 0)
1265 goto err;
1266 w = &options->widths;
1267 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1268 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1269 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1270 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1271 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1272 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1273 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1274 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1275 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1276 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1277 /* get the number of chars to print this amount of time */
1278 num_digits = get_duration_width(d->afhi.seconds_total);
1279 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1280 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1281 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1282 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1283 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1284 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1285 GET_NUM_DIGITS(score, &num_digits);
1286 num_digits++; /* add one for the sign (space or "-") */
1287 w->score_width = PARA_MAX(w->score_width, num_digits);
1288 d->score = score;
1289 }
1290 return 1;
1291 err:
1292 return ret;
1293 }
1294
1295 static int com_ls_callback(struct afs_callback_arg *aca)
1296 {
1297 struct ls_options *opts = aca->query.data;
1298 char *p, *pattern_start = (char *)aca->query.data + sizeof(*opts);
1299 int i = 0, ret;
1300 time_t current_time;
1301
1302 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1303 if (opts->num_patterns) {
1304 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1305 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1306 opts->patterns[i] = p;
1307 p += strlen(p) + 1;
1308 }
1309 } else
1310 opts->patterns = NULL;
1311 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1312 ret = admissible_file_loop(opts, prepare_ls_row);
1313 else
1314 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1315 prepare_ls_row));
1316 if (ret < 0)
1317 goto out;
1318 if (opts->num_matching_paths == 0) {
1319 ret = opts->num_patterns > 0? -E_NO_MATCH : 0;
1320 goto out;
1321 }
1322 ret = sort_matching_paths(opts);
1323 if (ret < 0)
1324 goto out;
1325 time(&current_time);
1326 if (opts->flags & LS_FLAG_REVERSE)
1327 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1328 ret = print_list_item(opts->data_ptr[i], opts,
1329 &aca->pbout, current_time);
1330 if (ret < 0)
1331 goto out;
1332 }
1333 else
1334 for (i = 0; i < opts->num_matching_paths; i++) {
1335 ret = print_list_item(opts->data_ptr[i], opts,
1336 &aca->pbout, current_time);
1337 if (ret < 0)
1338 goto out;
1339 }
1340 out:
1341 free(opts->data);
1342 free(opts->data_ptr);
1343 free(opts->patterns);
1344 return ret;
1345 }
1346
1347 /*
1348 * TODO: flags -h (sort by hash)
1349 */
1350 int com_ls(struct command_context *cc)
1351 {
1352 int i;
1353 unsigned flags = 0;
1354 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1355 enum ls_listing_mode mode = LS_MODE_SHORT;
1356 struct ls_options opts = {.patterns = NULL};
1357 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1358
1359 for (i = 1; i < cc->argc; i++) {
1360 const char *arg = cc->argv[i];
1361 if (arg[0] != '-')
1362 break;
1363 if (!strcmp(arg, "--")) {
1364 i++;
1365 break;
1366 }
1367 /*
1368 * Compatibility: Prior to 0.5.5 it was necessary to specify
1369 * the listing mode without the '=' character as in -lv, for
1370 * example. Now the variant with '=' is preferred and
1371 * documented but we still accept the old way to specify the
1372 * listing mode.
1373 *
1374 * Support for the legacy syntax can be dropped at 0.6.0
1375 * or later.
1376 */
1377 if (!strncmp(arg, "-l", 2)) {
1378 arg += 2;
1379 if (*arg == '=')
1380 arg++;
1381 switch (*arg) {
1382 case 's':
1383 mode = LS_MODE_SHORT;
1384 continue;
1385 case 'l':
1386 case '\0':
1387 mode = LS_MODE_LONG;
1388 continue;
1389 case 'v':
1390 mode = LS_MODE_VERBOSE;
1391 continue;
1392 case 'm':
1393 mode = LS_MODE_MBOX;
1394 continue;
1395 case 'c':
1396 mode = LS_MODE_CHUNKS;
1397 continue;
1398 case 'p':
1399 mode = LS_MODE_PARSER;
1400 continue;
1401 default:
1402 return -E_AFT_SYNTAX;
1403 }
1404 }
1405 if (!strcmp(arg, "-p")) {
1406 flags |= LS_FLAG_FULL_PATH;
1407 continue;
1408 }
1409 if (!strcmp(arg, "-a")) {
1410 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1411 continue;
1412 }
1413 if (!strcmp(arg, "-r")) {
1414 flags |= LS_FLAG_REVERSE;
1415 continue;
1416 }
1417 if (!strcmp(arg, "-d")) {
1418 flags |= LS_FLAG_UNIXDATE;
1419 continue;
1420 }
1421 /* The compatibility remark above applies also to -s. */
1422 if (!strncmp(arg, "-s", 2)) {
1423 arg += 2;
1424 if (*arg == '=')
1425 arg++;
1426 switch (*arg) {
1427 case 'p':
1428 sort = LS_SORT_BY_PATH;
1429 continue;
1430 case 's': /* -ss implies -a */
1431 sort = LS_SORT_BY_SCORE;
1432 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1433 continue;
1434 case 'l':
1435 sort = LS_SORT_BY_LAST_PLAYED;
1436 continue;
1437 case 'n':
1438 sort = LS_SORT_BY_NUM_PLAYED;
1439 continue;
1440 case 'f':
1441 sort = LS_SORT_BY_FREQUENCY;
1442 continue;
1443 case 'c':
1444 sort = LS_SORT_BY_CHANNELS;
1445 continue;
1446 case 'i':
1447 sort = LS_SORT_BY_IMAGE_ID;
1448 continue;
1449 case 'y':
1450 sort = LS_SORT_BY_LYRICS_ID;
1451 continue;
1452 case 'b':
1453 sort = LS_SORT_BY_BITRATE;
1454 continue;
1455 case 'd':
1456 sort = LS_SORT_BY_DURATION;
1457 continue;
1458 case 'a':
1459 sort = LS_SORT_BY_AUDIO_FORMAT;
1460 continue;
1461 default:
1462 return -E_AFT_SYNTAX;
1463 }
1464 }
1465 return -E_AFT_SYNTAX;
1466 }
1467 opts.flags = flags;
1468 opts.sorting = sort;
1469 opts.mode = mode;
1470 opts.num_patterns = cc->argc - i;
1471 return send_option_arg_callback_request(&query, opts.num_patterns,
1472 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
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 int find_hash_sister(unsigned char *hash, struct osl_row **result)
1490 {
1491 int ret = aft_get_row_of_hash(hash, result);
1492
1493 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1494 return 0;
1495 return ret;
1496 }
1497
1498 static int find_path_brother(const char *path, struct osl_row **result)
1499 {
1500 int ret = aft_get_row_of_path(path, result);
1501
1502 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1503 return 0;
1504 return ret;
1505 }
1506
1507 /** The format of the data stored by save_audio_file_data(). */
1508 enum com_add_buffer_offsets {
1509 /* afhi (if present) starts at this offset. */
1510 CAB_AFHI_OFFSET_POS = 0,
1511 /** Start of the chunk table (if present). */
1512 CAB_CHUNKS_OFFSET_POS = 4,
1513 /** Flags given to the add command. */
1514 CAB_FLAGS_OFFSET = 8,
1515 /** Audio format id. */
1516 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1517 /** The hash of the audio file being added. */
1518 CAB_HASH_OFFSET = 13,
1519 /** Start of the path of the audio file. */
1520 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1521 };
1522
1523 /*
1524 * Store the given data to a single buffer. Doesn't need the audio file selector
1525 * info struct as the server knows it as well.
1526 *
1527 * It's OK to call this with afhi == NULL. In this case, the audio format
1528 * handler info won't be stored in the buffer.
1529 */
1530 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1531 struct afh_info *afhi, uint32_t flags,
1532 uint8_t audio_format_num, struct osl_object *obj)
1533 {
1534 size_t path_len = strlen(path) + 1;
1535 size_t afhi_size = sizeof_afhi_buf(afhi);
1536 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1537 + sizeof_chunk_table(afhi);
1538 char *buf = para_malloc(size);
1539 uint32_t pos;
1540
1541 pos = CAB_PATH_OFFSET + path_len;
1542 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1543 save_afhi(afhi, buf + pos);
1544 pos += afhi_size;
1545
1546 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1547 if (afhi)
1548 save_chunk_table(afhi, buf + pos);
1549
1550 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1551 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1552
1553 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1554 strcpy(buf + CAB_PATH_OFFSET, path);
1555
1556 obj->data = buf;
1557 obj->size = size;
1558 }
1559
1560 /*
1561
1562 Overview of the add command.
1563
1564 Input: What was passed to the callback by the command handler.
1565 ~~~~~~
1566 HS: Hash sister. Whether an audio file with identical hash
1567 already exists in the osl database.
1568
1569 PB: Path brother. Whether a file with the given path exists
1570 in the table.
1571
1572 F: Force flag given. Whether add was called with -f.
1573
1574 output: Action performed by the callback.
1575 ~~~~~~~
1576 AFHI: Whether afhi and chunk table are computed and sent.
1577 ACTION: Table modifications to be done by the callback.
1578
1579 +----+----+---+------+---------------------------------------------------+
1580 | HS | PB | F | AFHI | ACTION
1581 +----+----+---+------+---------------------------------------------------+
1582 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1583 | | update path, keep afsi
1584 +----+----+---+------+---------------------------------------------------+
1585 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1586 | | otherwise: remove PB, HS: update path, keep afhi,
1587 | | afsi.
1588 +----+----+---+------+---------------------------------------------------+
1589 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1590 | | HS, keep afsi
1591 +----+----+---+------+---------------------------------------------------+
1592 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1593 +----+----+---+------+---------------------------------------------------+
1594 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1595 | | (force has no effect)
1596 +----+----+---+------+---------------------------------------------------+
1597 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1598 +----+----+---+------+---------------------------------------------------+
1599 | N | N | Y | Y | (new file) create new entry (force has no effect)
1600 +----+----+---+------+---------------------------------------------------+
1601 | N | N | N | Y | (new file) create new entry
1602 +----+----+---+------+---------------------------------------------------+
1603
1604 Notes:
1605
1606 afhi <=> force or no HS
1607 F => AFHI
1608
1609 */
1610
1611 /** Flags passed to the add command. */
1612 enum com_add_flags {
1613 /** Skip paths that exist already. */
1614 ADD_FLAG_LAZY = 1,
1615 /** Force adding. */
1616 ADD_FLAG_FORCE = 2,
1617 /** Print what is being done. */
1618 ADD_FLAG_VERBOSE = 4,
1619 /** Try to add files with unknown suffixes. */
1620 ADD_FLAG_ALL = 8,
1621 };
1622
1623 static int com_add_callback(struct afs_callback_arg *aca)
1624 {
1625 char *buf = aca->query.data, *path;
1626 struct osl_row *pb, *aft_row;
1627 struct osl_row *hs;
1628 struct osl_object objs[NUM_AFT_COLUMNS];
1629 unsigned char *hash;
1630 char asc[2 * HASH_SIZE + 1];
1631 int ret;
1632 char afsi_buf[AFSI_SIZE];
1633 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1634 struct afs_info default_afsi = {.last_played = 0};
1635 uint16_t afhi_offset, chunks_offset;
1636
1637 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1638 hash_to_asc(hash, asc);
1639 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1640 objs[AFTCOL_HASH].size = HASH_SIZE;
1641
1642 path = buf + CAB_PATH_OFFSET;
1643 objs[AFTCOL_PATH].data = path;
1644 objs[AFTCOL_PATH].size = strlen(path) + 1;
1645
1646 PARA_INFO_LOG("request to add %s\n", path);
1647 ret = find_hash_sister(hash, &hs);
1648 if (ret < 0)
1649 goto out;
1650 ret = find_path_brother(path, &pb);
1651 if (ret < 0)
1652 goto out;
1653 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1654 if (flags & ADD_FLAG_VERBOSE)
1655 para_printf(&aca->pbout, "ignoring duplicate\n");
1656 ret = 1;
1657 goto out;
1658 }
1659 if (hs && hs != pb) {
1660 struct osl_object obj;
1661 if (pb) { /* hs trumps pb, remove pb */
1662 if (flags & ADD_FLAG_VERBOSE)
1663 para_printf(&aca->pbout, "removing %s\n", path);
1664 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1665 if (ret < 0)
1666 goto out;
1667 ret = osl(osl_del_row(audio_file_table, pb));
1668 if (ret < 0)
1669 goto out;
1670 pb = NULL;
1671 }
1672 /* file rename, update hs' path */
1673 if (flags & ADD_FLAG_VERBOSE) {
1674 ret = osl(osl_get_object(audio_file_table, hs,
1675 AFTCOL_PATH, &obj));
1676 if (ret < 0)
1677 goto out;
1678 para_printf(&aca->pbout, "renamed from %s\n",
1679 (char *)obj.data);
1680 }
1681 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1682 &objs[AFTCOL_PATH]));
1683 if (ret < 0)
1684 goto out;
1685 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1686 if (ret < 0)
1687 goto out;
1688 if (!(flags & ADD_FLAG_FORCE))
1689 goto out;
1690 }
1691 /* no hs or force mode, child must have sent afhi */
1692 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1693 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1694
1695 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1696 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1697 ret = -E_NO_AFHI;
1698 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1699 goto out;
1700 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1701 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1702 if (pb && !hs) { /* update pb's hash */
1703 char old_asc[2 * HASH_SIZE + 1];
1704 unsigned char *old_hash;
1705 ret = get_hash_of_row(pb, &old_hash);
1706 if (ret < 0)
1707 goto out;
1708 hash_to_asc(old_hash, old_asc);
1709 if (flags & ADD_FLAG_VERBOSE)
1710 para_printf(&aca->pbout, "file change: %s -> %s\n",
1711 old_asc, asc);
1712 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1713 &objs[AFTCOL_HASH]);
1714 if (ret < 0)
1715 goto out;
1716 }
1717 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1718 struct osl_row *row = pb? pb : hs;
1719 /* update afhi and chunk_table */
1720 if (flags & ADD_FLAG_VERBOSE)
1721 para_printf(&aca->pbout,
1722 "updating afhi and chunk table\n");
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 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1732 if (ret < 0)
1733 goto out;
1734 goto out;
1735 }
1736 /* new entry, use default afsi */
1737 if (flags & ADD_FLAG_VERBOSE)
1738 para_printf(&aca->pbout, "new file\n");
1739 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1740 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1741
1742 objs[AFTCOL_AFSI].data = &afsi_buf;
1743 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1744 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1745 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1746 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1747 out:
1748 if (ret < 0)
1749 para_printf(&aca->pbout, "could not add %s\n", path);
1750 return ret;
1751 }
1752
1753 /** Used by com_add(). */
1754 struct private_add_data {
1755 /** The pointer passed to the original command handler. */
1756 struct command_context *cc;
1757 /** The given add flags. */
1758 uint32_t flags;
1759 };
1760
1761 static int path_brother_callback(struct afs_callback_arg *aca)
1762 {
1763 char *path = aca->query.data;
1764 struct osl_row *path_brother;
1765 int ret = find_path_brother(path, &path_brother);
1766 if (ret <= 0)
1767 return ret;
1768 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1769 sizeof(path_brother));
1770 }
1771
1772 static int hash_sister_callback(struct afs_callback_arg *aca)
1773 {
1774 unsigned char *hash = aca->query.data;
1775 struct osl_row *hash_sister;
1776 int ret = find_hash_sister(hash, &hash_sister);
1777
1778 if (ret <= 0)
1779 return ret;
1780 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1781 sizeof(hash_sister));
1782 }
1783
1784 static int get_row_pointer_from_result(struct osl_object *result,
1785 __a_unused uint8_t band, void *private)
1786 {
1787 struct osl_row **row = private;
1788
1789 if (band == SBD_OUTPUT)
1790 *row = *(struct osl_row **)(result->data);
1791 return 1;
1792 }
1793
1794 static int add_one_audio_file(const char *path, void *private_data)
1795 {
1796 int ret, send_ret = 1, fd;
1797 uint8_t format_num = -1;
1798 struct private_add_data *pad = private_data;
1799 struct afh_info afhi, *afhi_ptr = NULL;
1800 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1801 struct osl_object map, obj = {.data = NULL}, query;
1802 unsigned char hash[HASH_SIZE];
1803
1804 ret = guess_audio_format(path);
1805 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1806 ret = 0;
1807 goto out_free;
1808 }
1809 query.data = (char *)path;
1810 query.size = strlen(path) + 1;
1811 ret = send_callback_request(path_brother_callback, &query,
1812 get_row_pointer_from_result, &pb);
1813 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1814 goto out_free;
1815 ret = 1;
1816 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1817 if (pad->flags & ADD_FLAG_VERBOSE)
1818 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1819 "lazy-ignore: %s\n", path);
1820 goto out_free;
1821 }
1822 /* We still want to add this file. Compute its hash. */
1823 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1824 if (ret < 0)
1825 goto out_free;
1826 hash_function(map.data, map.size, hash);
1827
1828 /* Check whether the database contains a file with the same hash. */
1829 query.data = hash;
1830 query.size = HASH_SIZE;
1831 ret = send_callback_request(hash_sister_callback, &query,
1832 get_row_pointer_from_result, &hs);
1833 if (ret < 0)
1834 goto out_unmap;
1835 /* Return success if we already know this file. */
1836 ret = 1;
1837 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1838 if (pad->flags & ADD_FLAG_VERBOSE)
1839 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1840 "%s exists, not forcing update\n", path);
1841 goto out_unmap;
1842 }
1843 /*
1844 * We won't recalculate the audio format info and the chunk table if
1845 * there is a hash sister and FORCE was not given.
1846 */
1847 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1848 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1849 if (ret < 0)
1850 goto out_unmap;
1851 format_num = ret;
1852 afhi_ptr = &afhi;
1853 }
1854 munmap(map.data, map.size);
1855 close(fd);
1856 if (pad->flags & ADD_FLAG_VERBOSE) {
1857 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1858 "adding %s\n", path);
1859 if (send_ret < 0)
1860 goto out_free;
1861 }
1862 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1863 /* Ask afs to consider this entry for adding. */
1864 ret = send_callback_request(com_add_callback, &obj,
1865 afs_cb_result_handler, pad->cc);
1866 goto out_free;
1867
1868 out_unmap:
1869 close(fd);
1870 munmap(map.data, map.size);
1871 out_free:
1872 if (ret < 0 && send_ret >= 0)
1873 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1874 "failed to add %s (%s)\n", path, para_strerror(-ret));
1875 free(obj.data);
1876 clear_afhi(afhi_ptr);
1877 /* Stop adding files only on send errors. */
1878 return send_ret;
1879 }
1880
1881 int com_add(struct command_context *cc)
1882 {
1883 int i, ret;
1884 struct private_add_data pad = {.cc = cc, .flags = 0};
1885
1886 for (i = 1; i < cc->argc; i++) {
1887 const char *arg = cc->argv[i];
1888 if (arg[0] != '-')
1889 break;
1890 if (!strcmp(arg, "--")) {
1891 i++;
1892 break;
1893 }
1894 if (!strcmp(arg, "-a")) {
1895 pad.flags |= ADD_FLAG_ALL;
1896 continue;
1897 }
1898 if (!strcmp(arg, "-l")) {
1899 pad.flags |= ADD_FLAG_LAZY;
1900 continue;
1901 }
1902 if (!strcmp(arg, "-f")) {
1903 pad.flags |= ADD_FLAG_FORCE;
1904 continue;
1905 }
1906 if (!strcmp(arg, "-v")) {
1907 pad.flags |= ADD_FLAG_VERBOSE;
1908 continue;
1909 }
1910 }
1911 if (cc->argc <= i)
1912 return -E_AFT_SYNTAX;
1913 for (; i < cc->argc; i++) {
1914 char *path;
1915 ret = verify_path(cc->argv[i], &path);
1916 if (ret < 0) {
1917 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1918 cc->argv[i], para_strerror(-ret));
1919 if (ret < 0)
1920 return ret;
1921 continue;
1922 }
1923 if (ret == 1) /* directory */
1924 ret = for_each_file_in_dir(path, add_one_audio_file,
1925 &pad);
1926 else /* regular file */
1927 ret = add_one_audio_file(path, &pad);
1928 if (ret < 0) {
1929 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1930 para_strerror(-ret));
1931 free(path);
1932 return ret;
1933 }
1934 free(path);
1935 }
1936 return 1;
1937 }
1938
1939 /**
1940 * Flags used by the touch command.
1941 *
1942 * \sa com_touch().
1943 */
1944 enum touch_flags {
1945 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1946 TOUCH_FLAG_FNM_PATHNAME = 1,
1947 /** Activates verbose mode. */
1948 TOUCH_FLAG_VERBOSE = 2
1949 };
1950
1951 /** Options used by com_touch(). */
1952 struct com_touch_options {
1953 /** New num_played value. */
1954 int32_t num_played;
1955 /** New last played count. */
1956 int64_t last_played;
1957 /** New lyrics id. */
1958 int32_t lyrics_id;
1959 /** New image id. */
1960 int32_t image_id;
1961 /** New amplification value. */
1962 int32_t amp;
1963 /** Command line flags (see \ref touch_flags). */
1964 unsigned flags;
1965 };
1966
1967 static int touch_audio_file(__a_unused struct osl_table *table,
1968 struct osl_row *row, const char *name, void *data)
1969 {
1970 struct afs_callback_arg *aca = data;
1971 struct com_touch_options *cto = aca->query.data;
1972 struct osl_object obj;
1973 struct afs_info old_afsi, new_afsi;
1974 int ret, no_options = cto->num_played < 0 && cto->last_played < 0 &&
1975 cto->lyrics_id < 0 && cto->image_id < 0 && cto->amp < 0;
1976 struct afsi_change_event_data aced;
1977
1978 ret = get_afsi_object_of_row(row, &obj);
1979 if (ret < 0) {
1980 para_printf(&aca->pbout, "cannot touch %s\n", name);
1981 return ret;
1982 }
1983 ret = load_afsi(&old_afsi, &obj);
1984 if (ret < 0) {
1985 para_printf(&aca->pbout, "cannot touch %s\n", name);
1986 return ret;
1987 }
1988 new_afsi = old_afsi;
1989 if (no_options) {
1990 new_afsi.num_played++;
1991 new_afsi.last_played = time(NULL);
1992 if (cto->flags & TOUCH_FLAG_VERBOSE)
1993 para_printf(&aca->pbout, "%s: num_played = %u, "
1994 "last_played = now()\n", name,
1995 new_afsi.num_played);
1996 } else {
1997 if (cto->flags & TOUCH_FLAG_VERBOSE)
1998 para_printf(&aca->pbout, "touching %s\n", name);
1999 if (cto->lyrics_id >= 0)
2000 new_afsi.lyrics_id = cto->lyrics_id;
2001 if (cto->image_id >= 0)
2002 new_afsi.image_id = cto->image_id;
2003 if (cto->num_played >= 0)
2004 new_afsi.num_played = cto->num_played;
2005 if (cto->last_played >= 0)
2006 new_afsi.last_played = cto->last_played;
2007 if (cto->amp >= 0)
2008 new_afsi.amp = cto->amp;
2009 }
2010 save_afsi(&new_afsi, &obj); /* in-place update */
2011 aced.aft_row = row;
2012 aced.old_afsi = &old_afsi;
2013 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
2014 }
2015
2016 static int com_touch_callback(struct afs_callback_arg *aca)
2017 {
2018 int ret;
2019 struct com_touch_options *cto = aca->query.data;
2020 struct pattern_match_data pmd = {
2021 .table = audio_file_table,
2022 .loop_col_num = AFTCOL_HASH,
2023 .match_col_num = AFTCOL_PATH,
2024 .patterns = {
2025 .data = (char *)aca->query.data
2026 + sizeof(struct com_touch_options),
2027 .size = aca->query.size
2028 - sizeof(struct com_touch_options)
2029 },
2030 .data = aca,
2031 .action = touch_audio_file
2032 };
2033 if (cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2034 pmd.fnmatch_flags |= FNM_PATHNAME;
2035 ret = for_each_matching_row(&pmd);
2036 if (ret >= 0 && pmd.num_matches == 0)
2037 ret = -E_NO_MATCH;
2038 return ret;
2039 }
2040
2041 int com_touch(struct command_context *cc)
2042 {
2043 struct com_touch_options cto = {
2044 .num_played = -1,
2045 .last_played = -1,
2046 .lyrics_id = -1,
2047 .image_id = -1,
2048 .amp = -1,
2049 };
2050 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2051 int i, ret;
2052
2053
2054 for (i = 1; i < cc->argc; i++) {
2055 const char *arg = cc->argv[i];
2056 if (arg[0] != '-')
2057 break;
2058 if (!strcmp(arg, "--")) {
2059 i++;
2060 break;
2061 }
2062 if (!strncmp(arg, "-n=", 3)) {
2063 ret = para_atoi32(arg + 3, &cto.num_played);
2064 if (ret < 0)
2065 return ret;
2066 continue;
2067 }
2068 if (!strncmp(arg, "-l=", 3)) {
2069 ret = para_atoi64(arg + 3, &cto.last_played);
2070 if (ret < 0)
2071 return ret;
2072 continue;
2073 }
2074 if (!strncmp(arg, "-y=", 3)) {
2075 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2076 if (ret < 0)
2077 return ret;
2078 continue;
2079 }
2080 if (!strncmp(arg, "-i=", 3)) {
2081 ret = para_atoi32(arg + 3, &cto.image_id);
2082 if (ret < 0)
2083 return ret;
2084 continue;
2085 }
2086 if (!strncmp(arg, "-a=", 3)) {
2087 int32_t val;
2088 ret = para_atoi32(arg + 3, &val);
2089 if (ret < 0)
2090 return ret;
2091 if (val < 0 || val > 255)
2092 return -ERRNO_TO_PARA_ERROR(EINVAL);
2093 cto.amp = val;
2094 continue;
2095 }
2096 if (!strcmp(arg, "-p")) {
2097 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2098 continue;
2099 }
2100 if (!strcmp(arg, "-v")) {
2101 cto.flags |= TOUCH_FLAG_VERBOSE;
2102 continue;
2103 }
2104 break; /* non-option starting with dash */
2105 }
2106 if (i >= cc->argc)
2107 return -E_AFT_SYNTAX;
2108 return send_option_arg_callback_request(&query, cc->argc - i,
2109 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2110 }
2111
2112 /** Flags for com_rm(). */
2113 enum rm_flags {
2114 /** -v */
2115 RM_FLAG_VERBOSE = 1,
2116 /** -f */
2117 RM_FLAG_FORCE = 2,
2118 /** -p */
2119 RM_FLAG_FNM_PATHNAME = 4
2120 };
2121
2122 static int remove_audio_file(__a_unused struct osl_table *table,
2123 struct osl_row *row, const char *name, void *data)
2124 {
2125 struct afs_callback_arg *aca = data;
2126 uint32_t flags =*(uint32_t *)aca->query.data;
2127 int ret;
2128
2129 if (flags & RM_FLAG_VERBOSE)
2130 para_printf(&aca->pbout, "removing %s\n", name);
2131 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2132 if (ret < 0)
2133 return ret;
2134 ret = osl(osl_del_row(audio_file_table, row));
2135 if (ret < 0)
2136 para_printf(&aca->pbout, "cannot remove %s\n", name);
2137 return ret;
2138 }
2139
2140 static int com_rm_callback(struct afs_callback_arg *aca)
2141 {
2142 int ret;
2143 uint32_t flags = *(uint32_t *)aca->query.data;
2144 struct pattern_match_data pmd = {
2145 .table = audio_file_table,
2146 .loop_col_num = AFTCOL_HASH,
2147 .match_col_num = AFTCOL_PATH,
2148 .patterns = {.data = (char *)aca->query.data + sizeof(uint32_t),
2149 .size = aca->query.size - sizeof(uint32_t)},
2150 .data = aca,
2151 .action = remove_audio_file
2152 };
2153 if (flags & RM_FLAG_FNM_PATHNAME)
2154 pmd.fnmatch_flags |= FNM_PATHNAME;
2155 ret = for_each_matching_row(&pmd);
2156 if (ret < 0)
2157 goto out;
2158 if (pmd.num_matches == 0) {
2159 if (!(flags & RM_FLAG_FORCE))
2160 ret = -E_NO_MATCH;
2161 } else if (flags & RM_FLAG_VERBOSE)
2162 para_printf(&aca->pbout, "removed %u file(s)\n",
2163 pmd.num_matches);
2164 out:
2165 return ret;
2166 }
2167
2168 /* TODO options: -r (recursive) */
2169 int com_rm(struct command_context *cc)
2170 {
2171 uint32_t flags = 0;
2172 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2173 int i;
2174
2175 for (i = 1; i < cc->argc; i++) {
2176 const char *arg = cc->argv[i];
2177 if (arg[0] != '-')
2178 break;
2179 if (!strcmp(arg, "--")) {
2180 i++;
2181 break;
2182 }
2183 if (!strcmp(arg, "-f")) {
2184 flags |= RM_FLAG_FORCE;
2185 continue;
2186 }
2187 if (!strcmp(arg, "-p")) {
2188 flags |= RM_FLAG_FNM_PATHNAME;
2189 continue;
2190 }
2191 if (!strcmp(arg, "-v")) {
2192 flags |= RM_FLAG_VERBOSE;
2193 continue;
2194 }
2195 break;
2196 }
2197 if (i >= cc->argc)
2198 return -E_AFT_SYNTAX;
2199 return send_option_arg_callback_request(&query, cc->argc - i,
2200 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2201 }
2202
2203 /**
2204 * Flags used by the cpsi command.
2205 *
2206 * \sa com_cpsi().
2207 */
2208 enum cpsi_flags {
2209 /** Whether the lyrics id should be copied. */
2210 CPSI_FLAG_COPY_LYRICS_ID = 1,
2211 /** Whether the image id should be copied. */
2212 CPSI_FLAG_COPY_IMAGE_ID = 2,
2213 /** Whether the lastplayed time should be copied. */
2214 CPSI_FLAG_COPY_LASTPLAYED = 4,
2215 /** Whether the numplayed count should be copied. */
2216 CPSI_FLAG_COPY_NUMPLAYED = 8,
2217 /** Whether the attributes should be copied. */
2218 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2219 /** Activates verbose mode. */
2220 CPSI_FLAG_VERBOSE = 32,
2221 };
2222
2223 /** Data passed to the action handler of com_cpsi(). */
2224 struct cpsi_action_data {
2225 /** command line flags (see \ref cpsi_flags). */
2226 unsigned flags;
2227 /** Values are copied from here. */
2228 struct afs_info source_afsi;
2229 /** What was passed to com_cpsi_callback(). */
2230 struct afs_callback_arg *aca;
2231 };
2232
2233 static int copy_selector_info(__a_unused struct osl_table *table,
2234 struct osl_row *row, const char *name, void *data)
2235 {
2236 struct cpsi_action_data *cad = data;
2237 struct osl_object target_afsi_obj;
2238 int ret;
2239 struct afs_info old_afsi, target_afsi;
2240 struct afsi_change_event_data aced;
2241
2242 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2243 if (ret < 0)
2244 return ret;
2245 load_afsi(&target_afsi, &target_afsi_obj);
2246 old_afsi = target_afsi;
2247 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2248 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2249 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2250 target_afsi.image_id = cad->source_afsi.image_id;
2251 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2252 target_afsi.last_played = cad->source_afsi.last_played;
2253 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2254 target_afsi.num_played = cad->source_afsi.num_played;
2255 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2256 target_afsi.attributes = cad->source_afsi.attributes;
2257 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2258 if (cad->flags & CPSI_FLAG_VERBOSE)
2259 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2260 aced.aft_row = row;
2261 aced.old_afsi = &old_afsi;
2262 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2263 }
2264
2265 static int com_cpsi_callback(struct afs_callback_arg *aca)
2266 {
2267 struct cpsi_action_data cad = {
2268 .flags = *(unsigned *)aca->query.data,
2269 .aca = aca
2270 };
2271 int ret;
2272 char *source_path = (char *)aca->query.data + sizeof(cad.flags);
2273 struct pattern_match_data pmd = {
2274 .table = audio_file_table,
2275 .loop_col_num = AFTCOL_HASH,
2276 .match_col_num = AFTCOL_PATH,
2277 .patterns = {.data = source_path + strlen(source_path) + 1,
2278 .size = aca->query.size - sizeof(cad.flags)
2279 - strlen(source_path) - 1},
2280 .data = &cad,
2281 .action = copy_selector_info
2282 };
2283
2284 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2285 if (ret < 0)
2286 goto out;
2287 ret = for_each_matching_row(&pmd);
2288 if (ret < 0)
2289 goto out;
2290 if (pmd.num_matches > 0) {
2291 if (cad.flags & CPSI_FLAG_VERBOSE)
2292 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2293 pmd.num_matches);
2294 } else
2295 ret = -E_NO_MATCH;
2296 out:
2297 return ret;
2298 }
2299
2300 int com_cpsi(struct command_context *cc)
2301 {
2302 unsigned flags = 0;
2303 int i;
2304 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2305
2306 for (i = 1; i < cc->argc; i++) {
2307 const char *arg = cc->argv[i];
2308 if (arg[0] != '-')
2309 break;
2310 if (!strcmp(arg, "--")) {
2311 i++;
2312 break;
2313 }
2314 if (!strcmp(arg, "-y")) {
2315 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2316 continue;
2317 }
2318 if (!strcmp(arg, "-i")) {
2319 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2320 continue;
2321 }
2322 if (!strcmp(arg, "-l")) {
2323 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2324 continue;
2325 }
2326 if (!strcmp(arg, "-n")) {
2327 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2328 continue;
2329 }
2330 if (!strcmp(arg, "-a")) {
2331 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2332 continue;
2333 }
2334 if (!strcmp(arg, "-v")) {
2335 flags |= CPSI_FLAG_VERBOSE;
2336 continue;
2337 }
2338 break;
2339 }
2340 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2341 return -E_AFT_SYNTAX;
2342 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2343 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2344 return send_option_arg_callback_request(&options, cc->argc - i,
2345 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2346 }
2347
2348 struct change_atts_data {
2349 uint64_t add_mask, del_mask;
2350 struct afs_callback_arg *aca;
2351 };
2352
2353 static int change_atts(__a_unused struct osl_table *table,
2354 struct osl_row *row, __a_unused const char *name, void *data)
2355 {
2356 int ret;
2357 struct osl_object obj;
2358 struct afs_info old_afsi, new_afsi;
2359 struct afsi_change_event_data aced = {
2360 .aft_row = row,
2361 .old_afsi = &old_afsi
2362 };
2363 struct change_atts_data *cad = data;
2364
2365 ret = get_afsi_object_of_row(row, &obj);
2366 if (ret < 0)
2367 return ret;
2368 ret = load_afsi(&old_afsi, &obj);
2369 if (ret < 0)
2370 return ret;
2371 new_afsi = old_afsi;
2372 new_afsi.attributes |= cad->add_mask;
2373 new_afsi.attributes &= ~cad->del_mask;
2374 save_afsi(&new_afsi, &obj); /* in-place update */
2375 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2376 }
2377
2378 static int com_setatt_callback(struct afs_callback_arg *aca)
2379 {
2380 char *p;
2381 int ret;
2382 size_t len;
2383 struct change_atts_data cad = {.aca = aca};
2384 struct pattern_match_data pmd = {
2385 .table = audio_file_table,
2386 .loop_col_num = AFTCOL_HASH,
2387 .match_col_num = AFTCOL_PATH,
2388 .pm_flags = PM_SKIP_EMPTY_NAME,
2389 .data = &cad,
2390 .action = change_atts
2391 };
2392
2393 for (
2394 p = aca->query.data;
2395 p < (char *)aca->query.data + aca->query.size;
2396 p += len + 1
2397 ) {
2398 char c;
2399 unsigned char bitnum;
2400
2401 len = strlen(p);
2402 ret = -E_ATTR_SYNTAX;
2403 if (len == 0)
2404 goto out;
2405 c = p[len - 1];
2406 if (c != '+' && c != '-')
2407 break;
2408 p[len - 1] = '\0';
2409 ret = get_attribute_bitnum_by_name(p, &bitnum);
2410 if (ret < 0) {
2411 para_printf(&aca->pbout, "attribute not found: %s\n", p);
2412 goto out;
2413 }
2414 if (c == '+')
2415 cad.add_mask |= (1UL << bitnum);
2416 else
2417 cad.del_mask |= (1UL << bitnum);
2418 }
2419 ret = -E_ATTR_SYNTAX;
2420 if (!cad.add_mask && !cad.del_mask)
2421 goto out;
2422 pmd.patterns.data = p;
2423 if (p >= (char *)aca->query.data + aca->query.size)
2424 goto out;
2425 pmd.patterns.size = (char *)aca->query.data + aca->query.size - p;
2426 ret = for_each_matching_row(&pmd);
2427 if (ret < 0)
2428 goto out;
2429 if (pmd.num_matches == 0)
2430 ret = -E_NO_MATCH;
2431 out:
2432 return ret;
2433 }
2434
2435 int com_setatt(struct command_context *cc)
2436 {
2437 if (cc->argc < 3)
2438 return -E_ATTR_SYNTAX;
2439 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2440 com_setatt_callback, afs_cb_result_handler, cc);
2441 }
2442
2443 static int afs_stat_callback(struct afs_callback_arg *aca)
2444 {
2445 int *parser_friendly = aca->query.data;
2446 char *buf = *parser_friendly?
2447 parser_friendly_status_items : status_items;
2448
2449 if (!buf)
2450 return 0;
2451 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2452 }
2453
2454 /**
2455 * Get the current afs status items from the afs process and send it.
2456 *
2457 * \param cc The command context, used e.g. for data encryption.
2458 * \param parser_friendly Whether parser-friendly output format should be used.
2459 *
2460 * As the contents of the afs status items change in time and the command
2461 * handler only has a COW version created at fork time, it can not send
2462 * up-to-date afs status items directly. Therefore the usual callback mechanism
2463 * is used to pass the status items from the afs process to the command handler
2464 * via a shared memory area and a pipe.
2465 *
2466 * \return The return value of the underlying call to \ref send_callback_request().
2467 */
2468 int send_afs_status(struct command_context *cc, int parser_friendly)
2469 {
2470 struct osl_object query = {.data = &parser_friendly,
2471 .size = sizeof(parser_friendly)};
2472
2473 return send_callback_request(afs_stat_callback, &query,
2474 afs_cb_result_handler, cc);
2475 }
2476
2477 /* returns success on non-fatal errors to keep the loop going */
2478 static int check_audio_file(struct osl_row *row, void *data)
2479 {
2480 char *path;
2481 struct para_buffer *pb = data;
2482 struct stat statbuf;
2483 int ret = get_audio_file_path_of_row(row, &path);
2484 struct afs_info afsi;
2485 char *blob_name;
2486
2487 if (ret < 0) {
2488 para_printf(pb, "%s\n", para_strerror(-ret));
2489 return ret;
2490 }
2491 if (stat(path, &statbuf) < 0)
2492 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2493 else if (!S_ISREG(statbuf.st_mode))
2494 para_printf(pb, "%s: not a regular file\n", path);
2495 ret = get_afsi_of_row(row, &afsi);
2496 if (ret < 0) {
2497 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2498 return 1;
2499 }
2500 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2501 if (ret < 0)
2502 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2503 para_strerror(-ret));
2504 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2505 if (ret < 0)
2506 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2507 para_strerror(-ret));
2508 return 0;
2509 }
2510
2511 /**
2512 * Check the audio file table for inconsistencies.
2513 *
2514 * \param aca Only ->pbout is used for diagnostics.
2515 *
2516 * \return Standard. Inconsistencies are reported but not regarded as an error.
2517 *
2518 * \sa com_check().
2519 */
2520 int aft_check_callback(struct afs_callback_arg *aca)
2521 {
2522 para_printf(&aca->pbout, "checking audio file table...\n");
2523 return audio_file_loop(&aca->pbout, check_audio_file);
2524 }
2525
2526 struct aft_check_atts_data {
2527 uint64_t att_mask;
2528 struct para_buffer *pb;
2529 };
2530
2531 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2532 {
2533 struct aft_check_atts_data *acad = data;
2534 int ret;
2535 struct afs_info afsi;
2536 char *path;
2537 uint64_t bad_bits;
2538
2539 ret = get_afsi_of_row(row, &afsi);
2540 if (ret < 0) {
2541 para_printf(acad->pb, "cannot get afsi\n");
2542 return ret;
2543 }
2544 bad_bits = afsi.attributes & ~acad->att_mask;
2545 if (bad_bits == 0) /* OK */
2546 return 0;
2547 ret = get_audio_file_path_of_row(row, &path);
2548 if (ret < 0) {
2549 para_printf(acad->pb, "cannot get path\n");
2550 return ret;
2551 }
2552 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2553 bad_bits, path);
2554 /* return success to keep looping */
2555 return 1;
2556 }
2557
2558 /**
2559 * Iterate over all audio files and check the attribute bit mask.
2560 *
2561 * \param att_mask The mask of all valid attributes.
2562 * \param pb Used for reporting inconsistencies.
2563 *
2564 * This reads the attribute bit mask of each audio file from the afs info
2565 * structure stored in the audio file table and verifies that all set bits are
2566 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2567 * attribute table. Audio files for which this is not the case are reported via
2568 * \a pb.
2569 *
2570 * \return Standard. Inconsistencies are not regarded as errors.
2571 *
2572 * \sa \ref attribute_check_callback().
2573 */
2574 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2575 {
2576 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2577
2578 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2579 return audio_file_loop(&acad, check_atts_of_audio_file);
2580 }
2581
2582 /**
2583 * Close the audio file table.
2584 *
2585 * \param flags Usual flags that are passed to osl_close_table().
2586 *
2587 * \sa osl_close_table().
2588 */
2589 static void aft_close(void)
2590 {
2591 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2592 audio_file_table = NULL;
2593 }
2594
2595 /**
2596 * Open the audio file table.
2597 *
2598 * \param dir The database directory.
2599 *
2600 * \return Standard.
2601 *
2602 * \sa osl_open_table().
2603 */
2604 static int aft_open(const char *dir)
2605 {
2606 int ret;
2607
2608 audio_file_table_desc.dir = dir;
2609 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2610 if (ret >= 0) {
2611 unsigned num;
2612 osl_get_num_rows(audio_file_table, &num);
2613 PARA_INFO_LOG("audio file table contains %d files\n", num);
2614 return ret;
2615 }
2616 PARA_NOTICE_LOG("failed to open audio file table\n");
2617 audio_file_table = NULL;
2618 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2619 return 1;
2620 return ret;
2621 }
2622
2623 static int aft_create(const char *dir)
2624 {
2625 audio_file_table_desc.dir = dir;
2626 return osl(osl_create_table(&audio_file_table_desc));
2627 }
2628
2629 static int clear_attribute(struct osl_row *row, void *data)
2630 {
2631 struct rmatt_event_data *red = data;
2632 struct afs_info afsi;
2633 struct osl_object obj;
2634 int ret = get_afsi_object_of_row(row, &obj);
2635 uint64_t mask = ~(1ULL << red->bitnum);
2636
2637 if (ret < 0)
2638 return ret;
2639 ret = load_afsi(&afsi, &obj);
2640 if (ret < 0)
2641 return ret;
2642 afsi.attributes &= mask;
2643 save_afsi(&afsi, &obj);
2644 return 1;
2645 }
2646
2647 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2648 void *data)
2649 {
2650 int ret;
2651
2652 switch (event) {
2653 case ATTRIBUTE_REMOVE: {
2654 const struct rmatt_event_data *red = data;
2655 para_printf(pb, "clearing attribute %s (bit %u) from all "
2656 "entries in the audio file table\n", red->name,
2657 red->bitnum);
2658 return audio_file_loop(data, clear_attribute);
2659 } case AFSI_CHANGE: {
2660 struct afsi_change_event_data *aced = data;
2661 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2662 if (aced->aft_row != current_aft_row)
2663 return 0;
2664 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2665 if (ret < 0)
2666 return ret;
2667 status_item_ls_data.afsi.last_played = old_last_played;
2668 make_status_items();
2669 return 1;
2670 } case AFHI_CHANGE: {
2671 if (data != current_aft_row)
2672 return 0;
2673 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2674 if (ret < 0)
2675 return ret;
2676 make_status_items();
2677 return 1;
2678 } default:
2679 return 0;
2680 }
2681 }
2682
2683 /**
2684 * Initialize the audio file table.
2685 *
2686 * \param t Pointer to the structure to be initialized.
2687 */
2688 void aft_init(struct afs_table *t)
2689 {
2690 t->open = aft_open;
2691 t->close = aft_close;
2692 t->create = aft_create;
2693 t->event_handler = aft_event_handler;
2694 }