Merge branch 'refs/heads/t/mp3_afh'
[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 /*
700 * If the given time is more than six month away from the current time,
701 * we print only the year. The additional space character in the format
702 * string below makes the formated date align nicely with dates that
703 * contain the time (those written by the above strftime() statement).
704 */
705 if (!strftime(buf, size, "%b %e %Y", tm))
706 return -E_STRFTIME;
707 return 1;
708 }
709
710 /** Compute the number of (decimal) digits of a number. */
711 #define GET_NUM_DIGITS(x, num) { \
712 typeof((x)) _tmp = PARA_ABS(x); \
713 *num = 1; \
714 if ((_tmp)) \
715 while ((_tmp) > 9) { \
716 (_tmp) /= 10; \
717 (*num)++; \
718 } \
719 }
720
721 __a_const static short unsigned get_duration_width(int seconds)
722 {
723 short unsigned width;
724 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
725
726 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
727 return 4 + (mins > 9);
728 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
729 GET_NUM_DIGITS(hours, &width);
730 return width + 6;
731 }
732
733 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
734 {
735 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
736 short unsigned max_width;
737
738 if (!hours) { /* m:ss or mm:ss */
739 max_width = opts->mode == LS_MODE_LONG?
740 opts->widths.duration_width : 4;
741 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
742 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
743 max_width = opts->mode == LS_MODE_LONG?
744 opts->widths.duration_width : 7;
745 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
746 seconds % 60);
747 }
748 }
749
750 static int write_attribute_items(struct para_buffer *b,
751 const char *att_bitmap, struct afs_info *afsi)
752 {
753 char *att_text;
754 int ret;
755
756 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
757 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
758 if (ret < 0)
759 return ret;
760 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
761 free(att_text);
762 return ret;
763 }
764
765 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
766 {
767 char *lyrics_name;
768
769 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
770 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
771 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
772 lyrics_name : "(none)");
773 }
774
775 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
776 {
777 char *image_name;
778
779 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
780 img_get_name_by_id(afsi->image_id, &image_name);
781 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
782 image_name : "(none)");
783 }
784
785 static void write_filename_items(struct para_buffer *b, const char *path,
786 unsigned flags)
787 {
788 char *val;
789
790 if (!(flags & LS_FLAG_FULL_PATH)) {
791 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
792 return;
793 }
794 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
795 val = para_basename(path);
796 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
797 val = para_dirname(path);
798 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
799 free(val);
800 }
801
802 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
803 {
804 struct osl_object chunk_table_obj;
805 struct osl_row *aft_row;
806 int ret, i;
807 char *buf;
808
809 ret = aft_get_row_of_hash(d->hash, &aft_row);
810 if (ret < 0)
811 return ret;
812 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
813 AFTCOL_CHUNKS, &chunk_table_obj));
814 if (ret < 0)
815 return ret;
816 para_printf(b, "%s\n"
817 "chunk_time: %lu:%lu\nchunk_offsets: ",
818 d->path,
819 (long unsigned) d->afhi.chunk_tv.tv_sec,
820 (long unsigned) d->afhi.chunk_tv.tv_usec
821 );
822 buf = chunk_table_obj.data;
823 for (i = 0; i <= d->afhi.chunks_total; i++)
824 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
825 para_printf(b, "\n");
826 ret = 1;
827 osl_close_disk_object(&chunk_table_obj);
828 return ret;
829 }
830
831 static void write_score(struct para_buffer *b, struct ls_data *d,
832 struct ls_options *opts)
833 {
834 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
835 return;
836 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
837 }
838
839 static int print_list_item(struct ls_data *d, struct ls_options *opts,
840 struct para_buffer *b, time_t current_time)
841 {
842 int ret;
843 char att_buf[65];
844 char last_played_time[30];
845 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
846 struct afs_info *afsi = &d->afsi;
847 struct afh_info *afhi = &d->afhi;
848 char asc_hash[2 * HASH_SIZE + 1];
849
850 if (opts->mode == LS_MODE_SHORT) {
851 para_printf(b, "%s\n", d->path);
852 ret = 1;
853 goto out;
854 }
855 if (opts->mode == LS_MODE_CHUNKS) {
856 ret = print_chunk_table(d, b);
857 goto out;
858 }
859 get_attribute_bitmap(&afsi->attributes, att_buf);
860 if (opts->flags & LS_FLAG_UNIXDATE)
861 sprintf(last_played_time, "%llu",
862 (long long unsigned)afsi->last_played);
863 else {
864 ret = get_local_time(&afsi->last_played, last_played_time,
865 sizeof(last_played_time), current_time, opts->mode);
866 if (ret < 0)
867 goto out;
868 }
869 get_duration_buf(afhi->seconds_total, duration_buf, opts);
870 if (opts->mode == LS_MODE_LONG) {
871 struct ls_widths *w = &opts->widths;
872 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
873 para_printf(b, "%*li ", opts->widths.score_width,
874 d->score);
875 }
876 para_printf(b,
877 "%s " /* attributes */
878 "%*u " /* amp */
879 "%*d " /* image_id */
880 "%*d " /* lyrics_id */
881 "%*d " /* bitrate */
882 "%*s " /* audio format */
883 "%*d " /* frequency */
884 "%d " /* channels */
885 "%s " /* duration */
886 "%*d " /* num_played */
887 "%s " /* last_played */
888 "%s\n", /* path */
889 att_buf,
890 w->amp_width, afsi->amp,
891 w->image_id_width, afsi->image_id,
892 w->lyrics_id_width, afsi->lyrics_id,
893 w->bitrate_width, afhi->bitrate,
894 w->audio_format_width,
895 audio_format_name(afsi->audio_format_id),
896 w->frequency_width, afhi->frequency,
897 afhi->channels,
898 duration_buf,
899 w->num_played_width, afsi->num_played,
900 last_played_time,
901 d->path
902 );
903 ret = 1;
904 goto out;
905 }
906 if (opts->mode == LS_MODE_MBOX) {
907 const char *bn = para_basename(d->path);
908 para_printf(b,
909 "From foo@localhost %s\n"
910 "Received: from\nTo: bar\nFrom: a\n"
911 "Subject: %s\n\n",
912 last_played_time,
913 bn? bn : "?");
914 }
915 write_filename_items(b, d->path, opts->flags);
916 write_score(b, d, opts);
917 ret = write_attribute_items(b, att_buf, afsi);
918 if (ret < 0)
919 goto out;
920 write_image_items(b, afsi);
921 write_lyrics_items(b, afsi);
922 hash_to_asc(d->hash, asc_hash);
923 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
924 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
925 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
926 audio_format_name(afsi->audio_format_id));
927 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
928 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
929 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
930 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
931 afhi->seconds_total);
932 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
933 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
934 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
935 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
936 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
937 afhi->chunks_total);
938 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
939 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
940 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
941 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
942 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
943 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
944 if (opts->mode == LS_MODE_MBOX) {
945 struct osl_object lyrics_def;
946 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
947 if (lyrics_def.data) {
948 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
949 (char *)lyrics_def.data);
950 osl_close_disk_object(&lyrics_def);
951 }
952 }
953 out:
954 return ret;
955 }
956
957 static struct ls_data status_item_ls_data;
958 static struct osl_row *current_aft_row;
959
960 static void make_inode_status_items(struct para_buffer *pb)
961 {
962 struct stat statbuf = {.st_size = 0};
963 char *path, mtime_str[30] = "\0";
964 struct tm mtime_tm;
965 int ret;
966
967 ret = get_audio_file_path_of_row(current_aft_row, &path);
968 if (ret < 0)
969 goto out;
970 ret = stat(path, &statbuf);
971 if (ret < 0)
972 goto out;
973 localtime_r(&statbuf.st_mtime, &mtime_tm);
974 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
975 assert(ret > 0); /* number of bytes placed in mtime_str */
976 out:
977 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
978 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
979 }
980
981 static int make_status_items(void)
982 {
983 struct ls_options opts = {
984 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
985 .mode = LS_MODE_VERBOSE,
986 };
987 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
988 time_t current_time;
989 int ret;
990
991 time(&current_time);
992 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
993 if (ret < 0)
994 return ret;
995 make_inode_status_items(&pb);
996 free(status_items);
997 status_items = pb.buf;
998 memset(&pb, 0, sizeof(pb));
999 pb.max_size = shm_get_shmmax() - 1;
1000 pb.flags = PBF_SIZE_PREFIX;
1001 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1002 if (ret < 0) {
1003 free(status_items);
1004 status_items = NULL;
1005 return ret;
1006 }
1007 make_inode_status_items(&pb);
1008 free(parser_friendly_status_items);
1009 parser_friendly_status_items = pb.buf;
1010 return 1;
1011 }
1012
1013 /**
1014 * Open the audio file with highest score and set up an afd structure.
1015 *
1016 * \param afd Result pointer.
1017 *
1018 * On success, the numplayed field of the audio file selector info is increased
1019 * and the lastplayed time is set to the current time. Finally, the score of
1020 * the audio file is updated.
1021 *
1022 * \return Positive shmid on success, negative on errors.
1023 */
1024 int open_and_update_audio_file(struct audio_file_data *afd)
1025 {
1026 unsigned char file_hash[HASH_SIZE];
1027 struct osl_object afsi_obj;
1028 struct afs_info new_afsi;
1029 int ret;
1030 struct afsi_change_event_data aced;
1031 struct osl_object map, chunk_table_obj;
1032 struct ls_data *d = &status_item_ls_data;
1033 again:
1034 ret = score_get_best(&current_aft_row, &d->score);
1035 if (ret < 0)
1036 return ret;
1037 ret = get_hash_of_row(current_aft_row, &d->hash);
1038 if (ret < 0)
1039 return ret;
1040 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1041 if (ret < 0)
1042 return ret;
1043 PARA_NOTICE_LOG("%s\n", d->path);
1044 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1045 if (ret < 0)
1046 return ret;
1047 ret = load_afsi(&d->afsi, &afsi_obj);
1048 if (ret < 0)
1049 return ret;
1050 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1051 if (ret < 0)
1052 return ret;
1053 d->afhi = afd->afhi;
1054 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1055 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1056 AFTCOL_CHUNKS, &chunk_table_obj));
1057 if (ret < 0)
1058 return ret;
1059 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1060 if (ret < 0)
1061 goto out;
1062 hash_function(map.data, map.size, file_hash);
1063 ret = hash_compare(file_hash, d->hash);
1064 para_munmap(map.data, map.size);
1065 if (ret) {
1066 ret = -E_HASH_MISMATCH;
1067 goto out;
1068 }
1069 new_afsi = d->afsi;
1070 new_afsi.num_played++;
1071 new_afsi.last_played = time(NULL);
1072 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1073
1074 afd->audio_format_id = d->afsi.audio_format_id;
1075 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1076 aced.aft_row = current_aft_row;
1077 aced.old_afsi = &d->afsi;
1078 /*
1079 * No need to update the status items as the AFSI_CHANGE event will
1080 * recreate them.
1081 */
1082 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1083 if (ret < 0)
1084 goto out;
1085 ret = save_afd(afd);
1086 out:
1087 free(afd->afhi.chunk_table);
1088 osl_close_disk_object(&chunk_table_obj);
1089 if (ret < 0) {
1090 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1091 ret = score_delete(current_aft_row);
1092 if (ret >= 0)
1093 goto again;
1094 }
1095 return ret;
1096 }
1097
1098 static int ls_audio_format_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->afsi.audio_format_id, d2->afsi.audio_format_id);
1102 }
1103
1104 static int ls_duration_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.seconds_total, d2->afhi.seconds_total);
1108 }
1109
1110 static int ls_bitrate_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->afhi.bitrate, d2->afhi.bitrate);
1114 }
1115
1116 static int ls_lyrics_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.lyrics_id, d2->afsi.lyrics_id);
1120 }
1121
1122 static int ls_image_id_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->afsi.image_id, d2->afsi.image_id);
1126 }
1127
1128 static int ls_channels_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.channels, d2->afhi.channels);
1132 }
1133
1134 static int ls_frequency_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->afhi.frequency, d2->afhi.frequency);
1138 }
1139
1140 static int ls_num_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.num_played, d2->afsi.num_played);
1144 }
1145
1146 static int ls_last_played_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->afsi.last_played, d2->afsi.last_played);
1150 }
1151
1152 static int ls_score_compare(const void *a, const void *b)
1153 {
1154 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1155 return NUM_COMPARE(d1->score, d2->score);
1156 }
1157
1158 static int ls_path_compare(const void *a, const void *b)
1159 {
1160 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1161 return strcmp(d1->path, d2->path);
1162 }
1163
1164 static int sort_matching_paths(struct ls_options *options)
1165 {
1166 size_t nmemb = options->num_matching_paths;
1167 size_t size = sizeof(*options->data_ptr);
1168 int (*compar)(const void *, const void *);
1169 int i;
1170
1171 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1172 for (i = 0; i < nmemb; i++)
1173 options->data_ptr[i] = options->data + i;
1174
1175 /* In these cases the array is already sorted */
1176 if (options->sorting == LS_SORT_BY_PATH
1177 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1178 && (options->flags & LS_FLAG_FULL_PATH))
1179 return 1;
1180 if (options->sorting == LS_SORT_BY_SCORE &&
1181 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1182 return 1;
1183
1184 switch (options->sorting) {
1185 case LS_SORT_BY_PATH:
1186 compar = ls_path_compare; break;
1187 case LS_SORT_BY_SCORE:
1188 compar = ls_score_compare; break;
1189 case LS_SORT_BY_LAST_PLAYED:
1190 compar = ls_last_played_compare; break;
1191 case LS_SORT_BY_NUM_PLAYED:
1192 compar = ls_num_played_compare; break;
1193 case LS_SORT_BY_FREQUENCY:
1194 compar = ls_frequency_compare; break;
1195 case LS_SORT_BY_CHANNELS:
1196 compar = ls_channels_compare; break;
1197 case LS_SORT_BY_IMAGE_ID:
1198 compar = ls_image_id_compare; break;
1199 case LS_SORT_BY_LYRICS_ID:
1200 compar = ls_lyrics_id_compare; break;
1201 case LS_SORT_BY_BITRATE:
1202 compar = ls_bitrate_compare; break;
1203 case LS_SORT_BY_DURATION:
1204 compar = ls_duration_compare; break;
1205 case LS_SORT_BY_AUDIO_FORMAT:
1206 compar = ls_audio_format_compare; break;
1207 default:
1208 return -E_BAD_SORT;
1209 }
1210 qsort(options->data_ptr, nmemb, size, compar);
1211 return 1;
1212 }
1213
1214 /* row is either an aft_row or a row of the score table */
1215 /* TODO: Only compute widths if we need them */
1216 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1217 {
1218 int ret, i;
1219 struct ls_options *options = ls_opts;
1220 struct ls_data *d;
1221 struct ls_widths *w;
1222 unsigned short num_digits;
1223 unsigned tmp;
1224 struct osl_row *aft_row;
1225 long score;
1226 char *path;
1227
1228 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1229 ret = get_score_and_aft_row(row, &score, &aft_row);
1230 if (ret < 0)
1231 return ret;
1232 } else {
1233 aft_row = row;
1234 score = 0;
1235 }
1236 ret = get_audio_file_path_of_row(aft_row, &path);
1237 if (ret < 0)
1238 return ret;
1239 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1240 char *p = strrchr(path, '/');
1241 if (p)
1242 path = p + 1;
1243 }
1244 if (options->num_patterns) {
1245 for (i = 0; i < options->num_patterns; i++) {
1246 ret = fnmatch(options->patterns[i], path, 0);
1247 if (!ret)
1248 break;
1249 if (ret == FNM_NOMATCH)
1250 continue;
1251 return -E_FNMATCH;
1252 }
1253 if (i >= options->num_patterns) /* no match */
1254 return 1;
1255 }
1256 tmp = options->num_matching_paths++;
1257 if (options->num_matching_paths > options->array_size) {
1258 options->array_size++;
1259 options->array_size *= 2;
1260 options->data = para_realloc(options->data, options->array_size
1261 * sizeof(*options->data));
1262 }
1263 d = options->data + tmp;
1264 ret = get_afsi_of_row(aft_row, &d->afsi);
1265 if (ret < 0)
1266 return ret;
1267 ret = get_afhi_of_row(aft_row, &d->afhi);
1268 if (ret < 0)
1269 return ret;
1270 d->path = path;
1271 ret = get_hash_of_row(aft_row, &d->hash);
1272 if (ret < 0)
1273 goto err;
1274 w = &options->widths;
1275 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1276 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1277 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1278 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1279 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1280 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1281 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1282 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1283 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1284 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1285 /* get the number of chars to print this amount of time */
1286 num_digits = get_duration_width(d->afhi.seconds_total);
1287 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1288 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1289 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1290 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1291 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1292 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1293 GET_NUM_DIGITS(score, &num_digits);
1294 num_digits++; /* add one for the sign (space or "-") */
1295 w->score_width = PARA_MAX(w->score_width, num_digits);
1296 d->score = score;
1297 }
1298 return 1;
1299 err:
1300 return ret;
1301 }
1302
1303 static int com_ls_callback(struct afs_callback_arg *aca)
1304 {
1305 struct ls_options *opts = aca->query.data;
1306 char *p, *pattern_start = (char *)aca->query.data + sizeof(*opts);
1307 int i = 0, ret;
1308 time_t current_time;
1309
1310 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1311 if (opts->num_patterns) {
1312 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1313 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1314 opts->patterns[i] = p;
1315 p += strlen(p) + 1;
1316 }
1317 } else
1318 opts->patterns = NULL;
1319 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1320 ret = admissible_file_loop(opts, prepare_ls_row);
1321 else
1322 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1323 prepare_ls_row));
1324 if (ret < 0)
1325 goto out;
1326 if (opts->num_matching_paths == 0) {
1327 ret = opts->num_patterns > 0? -E_NO_MATCH : 0;
1328 goto out;
1329 }
1330 ret = sort_matching_paths(opts);
1331 if (ret < 0)
1332 goto out;
1333 time(&current_time);
1334 if (opts->flags & LS_FLAG_REVERSE)
1335 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1336 ret = print_list_item(opts->data_ptr[i], opts,
1337 &aca->pbout, current_time);
1338 if (ret < 0)
1339 goto out;
1340 }
1341 else
1342 for (i = 0; i < opts->num_matching_paths; i++) {
1343 ret = print_list_item(opts->data_ptr[i], opts,
1344 &aca->pbout, current_time);
1345 if (ret < 0)
1346 goto out;
1347 }
1348 out:
1349 free(opts->data);
1350 free(opts->data_ptr);
1351 free(opts->patterns);
1352 return ret;
1353 }
1354
1355 /*
1356 * TODO: flags -h (sort by hash)
1357 */
1358 int com_ls(struct command_context *cc)
1359 {
1360 int i;
1361 unsigned flags = 0;
1362 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1363 enum ls_listing_mode mode = LS_MODE_SHORT;
1364 struct ls_options opts = {.patterns = NULL};
1365 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1366
1367 for (i = 1; i < cc->argc; i++) {
1368 const char *arg = cc->argv[i];
1369 if (arg[0] != '-')
1370 break;
1371 if (!strcmp(arg, "--")) {
1372 i++;
1373 break;
1374 }
1375 /*
1376 * Compatibility: Prior to 0.5.5 it was necessary to specify
1377 * the listing mode without the '=' character as in -lv, for
1378 * example. Now the variant with '=' is preferred and
1379 * documented but we still accept the old way to specify the
1380 * listing mode.
1381 *
1382 * Support for the legacy syntax can be dropped at 0.6.0
1383 * or later.
1384 */
1385 if (!strncmp(arg, "-l", 2)) {
1386 arg += 2;
1387 if (*arg == '=')
1388 arg++;
1389 switch (*arg) {
1390 case 's':
1391 mode = LS_MODE_SHORT;
1392 continue;
1393 case 'l':
1394 case '\0':
1395 mode = LS_MODE_LONG;
1396 continue;
1397 case 'v':
1398 mode = LS_MODE_VERBOSE;
1399 continue;
1400 case 'm':
1401 mode = LS_MODE_MBOX;
1402 continue;
1403 case 'c':
1404 mode = LS_MODE_CHUNKS;
1405 continue;
1406 case 'p':
1407 mode = LS_MODE_PARSER;
1408 continue;
1409 default:
1410 return -E_AFT_SYNTAX;
1411 }
1412 }
1413 if (!strcmp(arg, "-p")) {
1414 flags |= LS_FLAG_FULL_PATH;
1415 continue;
1416 }
1417 if (!strcmp(arg, "-a")) {
1418 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1419 continue;
1420 }
1421 if (!strcmp(arg, "-r")) {
1422 flags |= LS_FLAG_REVERSE;
1423 continue;
1424 }
1425 if (!strcmp(arg, "-d")) {
1426 flags |= LS_FLAG_UNIXDATE;
1427 continue;
1428 }
1429 /* The compatibility remark above applies also to -s. */
1430 if (!strncmp(arg, "-s", 2)) {
1431 arg += 2;
1432 if (*arg == '=')
1433 arg++;
1434 switch (*arg) {
1435 case 'p':
1436 sort = LS_SORT_BY_PATH;
1437 continue;
1438 case 's': /* -ss implies -a */
1439 sort = LS_SORT_BY_SCORE;
1440 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1441 continue;
1442 case 'l':
1443 sort = LS_SORT_BY_LAST_PLAYED;
1444 continue;
1445 case 'n':
1446 sort = LS_SORT_BY_NUM_PLAYED;
1447 continue;
1448 case 'f':
1449 sort = LS_SORT_BY_FREQUENCY;
1450 continue;
1451 case 'c':
1452 sort = LS_SORT_BY_CHANNELS;
1453 continue;
1454 case 'i':
1455 sort = LS_SORT_BY_IMAGE_ID;
1456 continue;
1457 case 'y':
1458 sort = LS_SORT_BY_LYRICS_ID;
1459 continue;
1460 case 'b':
1461 sort = LS_SORT_BY_BITRATE;
1462 continue;
1463 case 'd':
1464 sort = LS_SORT_BY_DURATION;
1465 continue;
1466 case 'a':
1467 sort = LS_SORT_BY_AUDIO_FORMAT;
1468 continue;
1469 default:
1470 return -E_AFT_SYNTAX;
1471 }
1472 }
1473 return -E_AFT_SYNTAX;
1474 }
1475 opts.flags = flags;
1476 opts.sorting = sort;
1477 opts.mode = mode;
1478 opts.num_patterns = cc->argc - i;
1479 return send_option_arg_callback_request(&query, opts.num_patterns,
1480 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1481 }
1482
1483 /**
1484 * Call the given function for each file in the audio file table.
1485 *
1486 * \param private_data An arbitrary data pointer, passed to \a func.
1487 * \param func The custom function to be called.
1488 *
1489 * \return Standard.
1490 */
1491 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1492 {
1493 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1494 func));
1495 }
1496
1497 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1498 {
1499 int ret = aft_get_row_of_hash(hash, result);
1500
1501 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1502 return 0;
1503 return ret;
1504 }
1505
1506 static int find_path_brother(const char *path, struct osl_row **result)
1507 {
1508 int ret = aft_get_row_of_path(path, result);
1509
1510 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1511 return 0;
1512 return ret;
1513 }
1514
1515 /** The format of the data stored by save_audio_file_data(). */
1516 enum com_add_buffer_offsets {
1517 /* afhi (if present) starts at this offset. */
1518 CAB_AFHI_OFFSET_POS = 0,
1519 /** Start of the chunk table (if present). */
1520 CAB_CHUNKS_OFFSET_POS = 4,
1521 /** Flags given to the add command. */
1522 CAB_FLAGS_OFFSET = 8,
1523 /** Audio format id. */
1524 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1525 /** The hash of the audio file being added. */
1526 CAB_HASH_OFFSET = 13,
1527 /** Start of the path of the audio file. */
1528 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1529 };
1530
1531 /*
1532 * Store the given data to a single buffer. Doesn't need the audio file selector
1533 * info struct as the server knows it as well.
1534 *
1535 * It's OK to call this with afhi == NULL. In this case, the audio format
1536 * handler info won't be stored in the buffer.
1537 */
1538 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1539 struct afh_info *afhi, uint32_t flags,
1540 uint8_t audio_format_num, struct osl_object *obj)
1541 {
1542 size_t path_len = strlen(path) + 1;
1543 size_t afhi_size = sizeof_afhi_buf(afhi);
1544 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1545 + sizeof_chunk_table(afhi);
1546 char *buf = para_malloc(size);
1547 uint32_t pos;
1548
1549 pos = CAB_PATH_OFFSET + path_len;
1550 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1551 save_afhi(afhi, buf + pos);
1552 pos += afhi_size;
1553
1554 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1555 if (afhi)
1556 save_chunk_table(afhi, buf + pos);
1557
1558 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1559 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1560
1561 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1562 strcpy(buf + CAB_PATH_OFFSET, path);
1563
1564 obj->data = buf;
1565 obj->size = size;
1566 }
1567
1568 /*
1569
1570 Overview of the add command.
1571
1572 Input: What was passed to the callback by the command handler.
1573 ~~~~~~
1574 HS: Hash sister. Whether an audio file with identical hash
1575 already exists in the osl database.
1576
1577 PB: Path brother. Whether a file with the given path exists
1578 in the table.
1579
1580 F: Force flag given. Whether add was called with -f.
1581
1582 output: Action performed by the callback.
1583 ~~~~~~~
1584 AFHI: Whether afhi and chunk table are computed and sent.
1585 ACTION: Table modifications to be done by the callback.
1586
1587 +----+----+---+------+---------------------------------------------------+
1588 | HS | PB | F | AFHI | ACTION
1589 +----+----+---+------+---------------------------------------------------+
1590 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1591 | | update path, keep afsi
1592 +----+----+---+------+---------------------------------------------------+
1593 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1594 | | otherwise: remove PB, HS: update path, keep afhi,
1595 | | afsi.
1596 +----+----+---+------+---------------------------------------------------+
1597 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1598 | | HS, keep afsi
1599 +----+----+---+------+---------------------------------------------------+
1600 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1601 +----+----+---+------+---------------------------------------------------+
1602 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1603 | | (force has no effect)
1604 +----+----+---+------+---------------------------------------------------+
1605 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1606 +----+----+---+------+---------------------------------------------------+
1607 | N | N | Y | Y | (new file) create new entry (force has no effect)
1608 +----+----+---+------+---------------------------------------------------+
1609 | N | N | N | Y | (new file) create new entry
1610 +----+----+---+------+---------------------------------------------------+
1611
1612 Notes:
1613
1614 afhi <=> force or no HS
1615 F => AFHI
1616
1617 */
1618
1619 /** Flags passed to the add command. */
1620 enum com_add_flags {
1621 /** Skip paths that exist already. */
1622 ADD_FLAG_LAZY = 1,
1623 /** Force adding. */
1624 ADD_FLAG_FORCE = 2,
1625 /** Print what is being done. */
1626 ADD_FLAG_VERBOSE = 4,
1627 /** Try to add files with unknown suffixes. */
1628 ADD_FLAG_ALL = 8,
1629 };
1630
1631 static int com_add_callback(struct afs_callback_arg *aca)
1632 {
1633 char *buf = aca->query.data, *path;
1634 struct osl_row *pb, *aft_row;
1635 struct osl_row *hs;
1636 struct osl_object objs[NUM_AFT_COLUMNS];
1637 unsigned char *hash;
1638 char asc[2 * HASH_SIZE + 1];
1639 int ret;
1640 char afsi_buf[AFSI_SIZE];
1641 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1642 struct afs_info default_afsi = {.last_played = 0};
1643 uint16_t afhi_offset, chunks_offset;
1644
1645 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1646 hash_to_asc(hash, asc);
1647 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1648 objs[AFTCOL_HASH].size = HASH_SIZE;
1649
1650 path = buf + CAB_PATH_OFFSET;
1651 objs[AFTCOL_PATH].data = path;
1652 objs[AFTCOL_PATH].size = strlen(path) + 1;
1653
1654 PARA_INFO_LOG("request to add %s\n", path);
1655 ret = find_hash_sister(hash, &hs);
1656 if (ret < 0)
1657 goto out;
1658 ret = find_path_brother(path, &pb);
1659 if (ret < 0)
1660 goto out;
1661 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1662 if (flags & ADD_FLAG_VERBOSE)
1663 para_printf(&aca->pbout, "ignoring duplicate\n");
1664 ret = 1;
1665 goto out;
1666 }
1667 if (hs && hs != pb) {
1668 struct osl_object obj;
1669 if (pb) { /* hs trumps pb, remove pb */
1670 if (flags & ADD_FLAG_VERBOSE)
1671 para_printf(&aca->pbout, "removing %s\n", path);
1672 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1673 if (ret < 0)
1674 goto out;
1675 ret = osl(osl_del_row(audio_file_table, pb));
1676 if (ret < 0)
1677 goto out;
1678 pb = NULL;
1679 }
1680 /* file rename, update hs' path */
1681 if (flags & ADD_FLAG_VERBOSE) {
1682 ret = osl(osl_get_object(audio_file_table, hs,
1683 AFTCOL_PATH, &obj));
1684 if (ret < 0)
1685 goto out;
1686 para_printf(&aca->pbout, "renamed from %s\n",
1687 (char *)obj.data);
1688 }
1689 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1690 &objs[AFTCOL_PATH]));
1691 if (ret < 0)
1692 goto out;
1693 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1694 if (ret < 0)
1695 goto out;
1696 if (!(flags & ADD_FLAG_FORCE))
1697 goto out;
1698 }
1699 /* no hs or force mode, child must have sent afhi */
1700 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1701 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1702
1703 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1704 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1705 ret = -E_NO_AFHI;
1706 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1707 goto out;
1708 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1709 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1710 if (pb && !hs) { /* update pb's hash */
1711 char old_asc[2 * HASH_SIZE + 1];
1712 unsigned char *old_hash;
1713 ret = get_hash_of_row(pb, &old_hash);
1714 if (ret < 0)
1715 goto out;
1716 hash_to_asc(old_hash, old_asc);
1717 if (flags & ADD_FLAG_VERBOSE)
1718 para_printf(&aca->pbout, "file change: %s -> %s\n",
1719 old_asc, asc);
1720 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1721 &objs[AFTCOL_HASH]);
1722 if (ret < 0)
1723 goto out;
1724 }
1725 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1726 struct osl_row *row = pb? pb : hs;
1727 /* update afhi and chunk_table */
1728 if (flags & ADD_FLAG_VERBOSE)
1729 para_printf(&aca->pbout,
1730 "updating afhi and chunk table\n");
1731 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1732 &objs[AFTCOL_AFHI]));
1733 if (ret < 0)
1734 goto out;
1735 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1736 &objs[AFTCOL_CHUNKS]));
1737 if (ret < 0)
1738 goto out;
1739 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1740 if (ret < 0)
1741 goto out;
1742 goto out;
1743 }
1744 /* new entry, use default afsi */
1745 if (flags & ADD_FLAG_VERBOSE)
1746 para_printf(&aca->pbout, "new file\n");
1747 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1748 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1749
1750 objs[AFTCOL_AFSI].data = &afsi_buf;
1751 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1752 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1753 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1754 if (ret < 0)
1755 goto out;
1756 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1757 out:
1758 if (ret < 0)
1759 para_printf(&aca->pbout, "could not add %s\n", path);
1760 return ret;
1761 }
1762
1763 /** Used by com_add(). */
1764 struct private_add_data {
1765 /** The pointer passed to the original command handler. */
1766 struct command_context *cc;
1767 /** The given add flags. */
1768 uint32_t flags;
1769 };
1770
1771 static int path_brother_callback(struct afs_callback_arg *aca)
1772 {
1773 char *path = aca->query.data;
1774 struct osl_row *path_brother;
1775 int ret = find_path_brother(path, &path_brother);
1776 if (ret <= 0)
1777 return ret;
1778 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1779 sizeof(path_brother));
1780 }
1781
1782 static int hash_sister_callback(struct afs_callback_arg *aca)
1783 {
1784 unsigned char *hash = aca->query.data;
1785 struct osl_row *hash_sister;
1786 int ret = find_hash_sister(hash, &hash_sister);
1787
1788 if (ret <= 0)
1789 return ret;
1790 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1791 sizeof(hash_sister));
1792 }
1793
1794 static int get_row_pointer_from_result(struct osl_object *result,
1795 __a_unused uint8_t band, void *private)
1796 {
1797 struct osl_row **row = private;
1798
1799 if (band == SBD_OUTPUT)
1800 *row = *(struct osl_row **)(result->data);
1801 return 1;
1802 }
1803
1804 static int add_one_audio_file(const char *path, void *private_data)
1805 {
1806 int ret, send_ret = 1, fd;
1807 uint8_t format_num = -1;
1808 struct private_add_data *pad = private_data;
1809 struct afh_info afhi, *afhi_ptr = NULL;
1810 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1811 struct osl_object map, obj = {.data = NULL}, query;
1812 unsigned char hash[HASH_SIZE];
1813
1814 ret = guess_audio_format(path);
1815 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1816 ret = 0;
1817 goto out_free;
1818 }
1819 query.data = (char *)path;
1820 query.size = strlen(path) + 1;
1821 ret = send_callback_request(path_brother_callback, &query,
1822 get_row_pointer_from_result, &pb);
1823 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1824 goto out_free;
1825 ret = 1;
1826 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1827 if (pad->flags & ADD_FLAG_VERBOSE)
1828 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1829 "lazy-ignore: %s\n", path);
1830 goto out_free;
1831 }
1832 /* We still want to add this file. Compute its hash. */
1833 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1834 if (ret < 0)
1835 goto out_free;
1836 hash_function(map.data, map.size, hash);
1837
1838 /* Check whether the database contains a file with the same hash. */
1839 query.data = hash;
1840 query.size = HASH_SIZE;
1841 ret = send_callback_request(hash_sister_callback, &query,
1842 get_row_pointer_from_result, &hs);
1843 if (ret < 0)
1844 goto out_unmap;
1845 /* Return success if we already know this file. */
1846 ret = 1;
1847 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1848 if (pad->flags & ADD_FLAG_VERBOSE)
1849 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1850 "%s exists, not forcing update\n", path);
1851 goto out_unmap;
1852 }
1853 /*
1854 * We won't recalculate the audio format info and the chunk table if
1855 * there is a hash sister and FORCE was not given.
1856 */
1857 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1858 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1859 if (ret < 0)
1860 goto out_unmap;
1861 format_num = ret;
1862 afhi_ptr = &afhi;
1863 }
1864 munmap(map.data, map.size);
1865 close(fd);
1866 if (pad->flags & ADD_FLAG_VERBOSE) {
1867 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1868 "adding %s\n", path);
1869 if (send_ret < 0)
1870 goto out_free;
1871 }
1872 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1873 /* Ask afs to consider this entry for adding. */
1874 ret = send_callback_request(com_add_callback, &obj,
1875 afs_cb_result_handler, pad->cc);
1876 goto out_free;
1877
1878 out_unmap:
1879 close(fd);
1880 munmap(map.data, map.size);
1881 out_free:
1882 if (ret < 0 && send_ret >= 0)
1883 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1884 "failed to add %s (%s)\n", path, para_strerror(-ret));
1885 free(obj.data);
1886 clear_afhi(afhi_ptr);
1887 /* Stop adding files only on send errors. */
1888 return send_ret;
1889 }
1890
1891 int com_add(struct command_context *cc)
1892 {
1893 int i, ret;
1894 struct private_add_data pad = {.cc = cc, .flags = 0};
1895
1896 for (i = 1; i < cc->argc; i++) {
1897 const char *arg = cc->argv[i];
1898 if (arg[0] != '-')
1899 break;
1900 if (!strcmp(arg, "--")) {
1901 i++;
1902 break;
1903 }
1904 if (!strcmp(arg, "-a")) {
1905 pad.flags |= ADD_FLAG_ALL;
1906 continue;
1907 }
1908 if (!strcmp(arg, "-l")) {
1909 pad.flags |= ADD_FLAG_LAZY;
1910 continue;
1911 }
1912 if (!strcmp(arg, "-f")) {
1913 pad.flags |= ADD_FLAG_FORCE;
1914 continue;
1915 }
1916 if (!strcmp(arg, "-v")) {
1917 pad.flags |= ADD_FLAG_VERBOSE;
1918 continue;
1919 }
1920 }
1921 if (cc->argc <= i)
1922 return -E_AFT_SYNTAX;
1923 for (; i < cc->argc; i++) {
1924 char *path;
1925 ret = verify_path(cc->argv[i], &path);
1926 if (ret < 0) {
1927 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1928 cc->argv[i], para_strerror(-ret));
1929 if (ret < 0)
1930 return ret;
1931 continue;
1932 }
1933 if (ret == 1) /* directory */
1934 ret = for_each_file_in_dir(path, add_one_audio_file,
1935 &pad);
1936 else /* regular file */
1937 ret = add_one_audio_file(path, &pad);
1938 if (ret < 0) {
1939 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1940 para_strerror(-ret));
1941 free(path);
1942 return ret;
1943 }
1944 free(path);
1945 }
1946 return 1;
1947 }
1948
1949 /**
1950 * Flags used by the touch command.
1951 *
1952 * \sa com_touch().
1953 */
1954 enum touch_flags {
1955 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1956 TOUCH_FLAG_FNM_PATHNAME = 1,
1957 /** Activates verbose mode. */
1958 TOUCH_FLAG_VERBOSE = 2
1959 };
1960
1961 /** Options used by com_touch(). */
1962 struct com_touch_options {
1963 /** New num_played value. */
1964 int32_t num_played;
1965 /** New last played count. */
1966 int64_t last_played;
1967 /** New lyrics id. */
1968 int32_t lyrics_id;
1969 /** New image id. */
1970 int32_t image_id;
1971 /** New amplification value. */
1972 int32_t amp;
1973 /** Command line flags (see \ref touch_flags). */
1974 unsigned flags;
1975 };
1976
1977 static int touch_audio_file(__a_unused struct osl_table *table,
1978 struct osl_row *row, const char *name, void *data)
1979 {
1980 struct afs_callback_arg *aca = data;
1981 struct com_touch_options *cto = aca->query.data;
1982 struct osl_object obj;
1983 struct afs_info old_afsi, new_afsi;
1984 int ret, no_options = cto->num_played < 0 && cto->last_played < 0 &&
1985 cto->lyrics_id < 0 && cto->image_id < 0 && cto->amp < 0;
1986 struct afsi_change_event_data aced;
1987
1988 ret = get_afsi_object_of_row(row, &obj);
1989 if (ret < 0) {
1990 para_printf(&aca->pbout, "cannot touch %s\n", name);
1991 return ret;
1992 }
1993 ret = load_afsi(&old_afsi, &obj);
1994 if (ret < 0) {
1995 para_printf(&aca->pbout, "cannot touch %s\n", name);
1996 return ret;
1997 }
1998 new_afsi = old_afsi;
1999 if (no_options) {
2000 new_afsi.num_played++;
2001 new_afsi.last_played = time(NULL);
2002 if (cto->flags & TOUCH_FLAG_VERBOSE)
2003 para_printf(&aca->pbout, "%s: num_played = %u, "
2004 "last_played = now()\n", name,
2005 new_afsi.num_played);
2006 } else {
2007 if (cto->flags & TOUCH_FLAG_VERBOSE)
2008 para_printf(&aca->pbout, "touching %s\n", name);
2009 if (cto->lyrics_id >= 0)
2010 new_afsi.lyrics_id = cto->lyrics_id;
2011 if (cto->image_id >= 0)
2012 new_afsi.image_id = cto->image_id;
2013 if (cto->num_played >= 0)
2014 new_afsi.num_played = cto->num_played;
2015 if (cto->last_played >= 0)
2016 new_afsi.last_played = cto->last_played;
2017 if (cto->amp >= 0)
2018 new_afsi.amp = cto->amp;
2019 }
2020 save_afsi(&new_afsi, &obj); /* in-place update */
2021 aced.aft_row = row;
2022 aced.old_afsi = &old_afsi;
2023 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
2024 }
2025
2026 static int com_touch_callback(struct afs_callback_arg *aca)
2027 {
2028 int ret;
2029 struct com_touch_options *cto = aca->query.data;
2030 struct pattern_match_data pmd = {
2031 .table = audio_file_table,
2032 .loop_col_num = AFTCOL_HASH,
2033 .match_col_num = AFTCOL_PATH,
2034 .patterns = {
2035 .data = (char *)aca->query.data
2036 + sizeof(struct com_touch_options),
2037 .size = aca->query.size
2038 - sizeof(struct com_touch_options)
2039 },
2040 .data = aca,
2041 .action = touch_audio_file
2042 };
2043 if (cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2044 pmd.fnmatch_flags |= FNM_PATHNAME;
2045 ret = for_each_matching_row(&pmd);
2046 if (ret >= 0 && pmd.num_matches == 0)
2047 ret = -E_NO_MATCH;
2048 return ret;
2049 }
2050
2051 int com_touch(struct command_context *cc)
2052 {
2053 struct com_touch_options cto = {
2054 .num_played = -1,
2055 .last_played = -1,
2056 .lyrics_id = -1,
2057 .image_id = -1,
2058 .amp = -1,
2059 };
2060 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2061 int i, ret;
2062
2063
2064 for (i = 1; i < cc->argc; i++) {
2065 const char *arg = cc->argv[i];
2066 if (arg[0] != '-')
2067 break;
2068 if (!strcmp(arg, "--")) {
2069 i++;
2070 break;
2071 }
2072 if (!strncmp(arg, "-n=", 3)) {
2073 ret = para_atoi32(arg + 3, &cto.num_played);
2074 if (ret < 0)
2075 return ret;
2076 continue;
2077 }
2078 if (!strncmp(arg, "-l=", 3)) {
2079 ret = para_atoi64(arg + 3, &cto.last_played);
2080 if (ret < 0)
2081 return ret;
2082 continue;
2083 }
2084 if (!strncmp(arg, "-y=", 3)) {
2085 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2086 if (ret < 0)
2087 return ret;
2088 continue;
2089 }
2090 if (!strncmp(arg, "-i=", 3)) {
2091 ret = para_atoi32(arg + 3, &cto.image_id);
2092 if (ret < 0)
2093 return ret;
2094 continue;
2095 }
2096 if (!strncmp(arg, "-a=", 3)) {
2097 int32_t val;
2098 ret = para_atoi32(arg + 3, &val);
2099 if (ret < 0)
2100 return ret;
2101 if (val < 0 || val > 255)
2102 return -ERRNO_TO_PARA_ERROR(EINVAL);
2103 cto.amp = val;
2104 continue;
2105 }
2106 if (!strcmp(arg, "-p")) {
2107 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2108 continue;
2109 }
2110 if (!strcmp(arg, "-v")) {
2111 cto.flags |= TOUCH_FLAG_VERBOSE;
2112 continue;
2113 }
2114 break; /* non-option starting with dash */
2115 }
2116 if (i >= cc->argc)
2117 return -E_AFT_SYNTAX;
2118 return send_option_arg_callback_request(&query, cc->argc - i,
2119 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2120 }
2121
2122 /** Flags for com_rm(). */
2123 enum rm_flags {
2124 /** -v */
2125 RM_FLAG_VERBOSE = 1,
2126 /** -f */
2127 RM_FLAG_FORCE = 2,
2128 /** -p */
2129 RM_FLAG_FNM_PATHNAME = 4
2130 };
2131
2132 static int remove_audio_file(__a_unused struct osl_table *table,
2133 struct osl_row *row, const char *name, void *data)
2134 {
2135 struct afs_callback_arg *aca = data;
2136 uint32_t flags =*(uint32_t *)aca->query.data;
2137 int ret;
2138
2139 if (flags & RM_FLAG_VERBOSE)
2140 para_printf(&aca->pbout, "removing %s\n", name);
2141 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2142 if (ret < 0)
2143 return ret;
2144 ret = osl(osl_del_row(audio_file_table, row));
2145 if (ret < 0)
2146 para_printf(&aca->pbout, "cannot remove %s\n", name);
2147 return ret;
2148 }
2149
2150 static int com_rm_callback(struct afs_callback_arg *aca)
2151 {
2152 int ret;
2153 uint32_t flags = *(uint32_t *)aca->query.data;
2154 struct pattern_match_data pmd = {
2155 .table = audio_file_table,
2156 .loop_col_num = AFTCOL_HASH,
2157 .match_col_num = AFTCOL_PATH,
2158 .patterns = {.data = (char *)aca->query.data + sizeof(uint32_t),
2159 .size = aca->query.size - sizeof(uint32_t)},
2160 .data = aca,
2161 .action = remove_audio_file
2162 };
2163 if (flags & RM_FLAG_FNM_PATHNAME)
2164 pmd.fnmatch_flags |= FNM_PATHNAME;
2165 ret = for_each_matching_row(&pmd);
2166 if (ret < 0)
2167 goto out;
2168 if (pmd.num_matches == 0) {
2169 if (!(flags & RM_FLAG_FORCE))
2170 ret = -E_NO_MATCH;
2171 } else if (flags & RM_FLAG_VERBOSE)
2172 para_printf(&aca->pbout, "removed %u file(s)\n",
2173 pmd.num_matches);
2174 out:
2175 return ret;
2176 }
2177
2178 /* TODO options: -r (recursive) */
2179 int com_rm(struct command_context *cc)
2180 {
2181 uint32_t flags = 0;
2182 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2183 int i;
2184
2185 for (i = 1; i < cc->argc; i++) {
2186 const char *arg = cc->argv[i];
2187 if (arg[0] != '-')
2188 break;
2189 if (!strcmp(arg, "--")) {
2190 i++;
2191 break;
2192 }
2193 if (!strcmp(arg, "-f")) {
2194 flags |= RM_FLAG_FORCE;
2195 continue;
2196 }
2197 if (!strcmp(arg, "-p")) {
2198 flags |= RM_FLAG_FNM_PATHNAME;
2199 continue;
2200 }
2201 if (!strcmp(arg, "-v")) {
2202 flags |= RM_FLAG_VERBOSE;
2203 continue;
2204 }
2205 break;
2206 }
2207 if (i >= cc->argc)
2208 return -E_AFT_SYNTAX;
2209 return send_option_arg_callback_request(&query, cc->argc - i,
2210 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2211 }
2212
2213 /**
2214 * Flags used by the cpsi command.
2215 *
2216 * \sa com_cpsi().
2217 */
2218 enum cpsi_flags {
2219 /** Whether the lyrics id should be copied. */
2220 CPSI_FLAG_COPY_LYRICS_ID = 1,
2221 /** Whether the image id should be copied. */
2222 CPSI_FLAG_COPY_IMAGE_ID = 2,
2223 /** Whether the lastplayed time should be copied. */
2224 CPSI_FLAG_COPY_LASTPLAYED = 4,
2225 /** Whether the numplayed count should be copied. */
2226 CPSI_FLAG_COPY_NUMPLAYED = 8,
2227 /** Whether the attributes should be copied. */
2228 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2229 /** Activates verbose mode. */
2230 CPSI_FLAG_VERBOSE = 32,
2231 };
2232
2233 /** Data passed to the action handler of com_cpsi(). */
2234 struct cpsi_action_data {
2235 /** command line flags (see \ref cpsi_flags). */
2236 unsigned flags;
2237 /** Values are copied from here. */
2238 struct afs_info source_afsi;
2239 /** What was passed to com_cpsi_callback(). */
2240 struct afs_callback_arg *aca;
2241 };
2242
2243 static int copy_selector_info(__a_unused struct osl_table *table,
2244 struct osl_row *row, const char *name, void *data)
2245 {
2246 struct cpsi_action_data *cad = data;
2247 struct osl_object target_afsi_obj;
2248 int ret;
2249 struct afs_info old_afsi, target_afsi;
2250 struct afsi_change_event_data aced;
2251
2252 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2253 if (ret < 0)
2254 return ret;
2255 load_afsi(&target_afsi, &target_afsi_obj);
2256 old_afsi = target_afsi;
2257 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2258 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2259 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2260 target_afsi.image_id = cad->source_afsi.image_id;
2261 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2262 target_afsi.last_played = cad->source_afsi.last_played;
2263 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2264 target_afsi.num_played = cad->source_afsi.num_played;
2265 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2266 target_afsi.attributes = cad->source_afsi.attributes;
2267 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2268 if (cad->flags & CPSI_FLAG_VERBOSE)
2269 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2270 aced.aft_row = row;
2271 aced.old_afsi = &old_afsi;
2272 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2273 }
2274
2275 static int com_cpsi_callback(struct afs_callback_arg *aca)
2276 {
2277 struct cpsi_action_data cad = {
2278 .flags = *(unsigned *)aca->query.data,
2279 .aca = aca
2280 };
2281 int ret;
2282 char *source_path = (char *)aca->query.data + sizeof(cad.flags);
2283 struct pattern_match_data pmd = {
2284 .table = audio_file_table,
2285 .loop_col_num = AFTCOL_HASH,
2286 .match_col_num = AFTCOL_PATH,
2287 .patterns = {.data = source_path + strlen(source_path) + 1,
2288 .size = aca->query.size - sizeof(cad.flags)
2289 - strlen(source_path) - 1},
2290 .data = &cad,
2291 .action = copy_selector_info
2292 };
2293
2294 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2295 if (ret < 0)
2296 goto out;
2297 ret = for_each_matching_row(&pmd);
2298 if (ret < 0)
2299 goto out;
2300 if (pmd.num_matches > 0) {
2301 if (cad.flags & CPSI_FLAG_VERBOSE)
2302 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2303 pmd.num_matches);
2304 } else
2305 ret = -E_NO_MATCH;
2306 out:
2307 return ret;
2308 }
2309
2310 int com_cpsi(struct command_context *cc)
2311 {
2312 unsigned flags = 0;
2313 int i;
2314 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2315
2316 for (i = 1; i < cc->argc; i++) {
2317 const char *arg = cc->argv[i];
2318 if (arg[0] != '-')
2319 break;
2320 if (!strcmp(arg, "--")) {
2321 i++;
2322 break;
2323 }
2324 if (!strcmp(arg, "-y")) {
2325 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2326 continue;
2327 }
2328 if (!strcmp(arg, "-i")) {
2329 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2330 continue;
2331 }
2332 if (!strcmp(arg, "-l")) {
2333 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2334 continue;
2335 }
2336 if (!strcmp(arg, "-n")) {
2337 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2338 continue;
2339 }
2340 if (!strcmp(arg, "-a")) {
2341 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2342 continue;
2343 }
2344 if (!strcmp(arg, "-v")) {
2345 flags |= CPSI_FLAG_VERBOSE;
2346 continue;
2347 }
2348 break;
2349 }
2350 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2351 return -E_AFT_SYNTAX;
2352 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2353 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2354 return send_option_arg_callback_request(&options, cc->argc - i,
2355 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2356 }
2357
2358 struct change_atts_data {
2359 uint64_t add_mask, del_mask;
2360 struct afs_callback_arg *aca;
2361 };
2362
2363 static int change_atts(__a_unused struct osl_table *table,
2364 struct osl_row *row, __a_unused const char *name, void *data)
2365 {
2366 int ret;
2367 struct osl_object obj;
2368 struct afs_info old_afsi, new_afsi;
2369 struct afsi_change_event_data aced = {
2370 .aft_row = row,
2371 .old_afsi = &old_afsi
2372 };
2373 struct change_atts_data *cad = data;
2374
2375 ret = get_afsi_object_of_row(row, &obj);
2376 if (ret < 0)
2377 return ret;
2378 ret = load_afsi(&old_afsi, &obj);
2379 if (ret < 0)
2380 return ret;
2381 new_afsi = old_afsi;
2382 new_afsi.attributes |= cad->add_mask;
2383 new_afsi.attributes &= ~cad->del_mask;
2384 save_afsi(&new_afsi, &obj); /* in-place update */
2385 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2386 }
2387
2388 static int com_setatt_callback(struct afs_callback_arg *aca)
2389 {
2390 char *p;
2391 int ret;
2392 size_t len;
2393 struct change_atts_data cad = {.aca = aca};
2394 struct pattern_match_data pmd = {
2395 .table = audio_file_table,
2396 .loop_col_num = AFTCOL_HASH,
2397 .match_col_num = AFTCOL_PATH,
2398 .pm_flags = PM_SKIP_EMPTY_NAME,
2399 .data = &cad,
2400 .action = change_atts
2401 };
2402
2403 for (
2404 p = aca->query.data;
2405 p < (char *)aca->query.data + aca->query.size;
2406 p += len + 1
2407 ) {
2408 char c;
2409 unsigned char bitnum;
2410 uint64_t one = 1;
2411
2412 len = strlen(p);
2413 ret = -E_ATTR_SYNTAX;
2414 if (len == 0)
2415 goto out;
2416 c = p[len - 1];
2417 if (c != '+' && c != '-')
2418 break;
2419 p[len - 1] = '\0';
2420 ret = get_attribute_bitnum_by_name(p, &bitnum);
2421 if (ret < 0) {
2422 para_printf(&aca->pbout, "attribute not found: %s\n", p);
2423 goto out;
2424 }
2425 if (c == '+')
2426 cad.add_mask |= (one << bitnum);
2427 else
2428 cad.del_mask |= (one << bitnum);
2429 }
2430 ret = -E_ATTR_SYNTAX;
2431 if (!cad.add_mask && !cad.del_mask)
2432 goto out;
2433 pmd.patterns.data = p;
2434 if (p >= (char *)aca->query.data + aca->query.size)
2435 goto out;
2436 pmd.patterns.size = (char *)aca->query.data + aca->query.size - p;
2437 ret = for_each_matching_row(&pmd);
2438 if (ret < 0)
2439 goto out;
2440 if (pmd.num_matches == 0)
2441 ret = -E_NO_MATCH;
2442 out:
2443 return ret;
2444 }
2445
2446 int com_setatt(struct command_context *cc)
2447 {
2448 if (cc->argc < 3)
2449 return -E_ATTR_SYNTAX;
2450 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2451 com_setatt_callback, afs_cb_result_handler, cc);
2452 }
2453
2454 static int afs_stat_callback(struct afs_callback_arg *aca)
2455 {
2456 int *parser_friendly = aca->query.data;
2457 char *buf = *parser_friendly?
2458 parser_friendly_status_items : status_items;
2459
2460 if (!buf)
2461 return 0;
2462 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2463 }
2464
2465 /**
2466 * Get the current afs status items from the afs process and send it.
2467 *
2468 * \param cc The command context, used e.g. for data encryption.
2469 * \param parser_friendly Whether parser-friendly output format should be used.
2470 *
2471 * As the contents of the afs status items change in time and the command
2472 * handler only has a COW version created at fork time, it can not send
2473 * up-to-date afs status items directly. Therefore the usual callback mechanism
2474 * is used to pass the status items from the afs process to the command handler
2475 * via a shared memory area and a pipe.
2476 *
2477 * \return The return value of the underlying call to \ref send_callback_request().
2478 */
2479 int send_afs_status(struct command_context *cc, int parser_friendly)
2480 {
2481 struct osl_object query = {.data = &parser_friendly,
2482 .size = sizeof(parser_friendly)};
2483
2484 return send_callback_request(afs_stat_callback, &query,
2485 afs_cb_result_handler, cc);
2486 }
2487
2488 /* returns success on non-fatal errors to keep the loop going */
2489 static int check_audio_file(struct osl_row *row, void *data)
2490 {
2491 char *path;
2492 struct para_buffer *pb = data;
2493 struct stat statbuf;
2494 int ret = get_audio_file_path_of_row(row, &path);
2495 struct afs_info afsi;
2496 char *blob_name;
2497
2498 if (ret < 0) {
2499 para_printf(pb, "%s\n", para_strerror(-ret));
2500 return ret;
2501 }
2502 if (stat(path, &statbuf) < 0)
2503 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2504 else if (!S_ISREG(statbuf.st_mode))
2505 para_printf(pb, "%s: not a regular file\n", path);
2506 ret = get_afsi_of_row(row, &afsi);
2507 if (ret < 0) {
2508 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2509 return 1;
2510 }
2511 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2512 if (ret < 0)
2513 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2514 para_strerror(-ret));
2515 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2516 if (ret < 0)
2517 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2518 para_strerror(-ret));
2519 return 0;
2520 }
2521
2522 /**
2523 * Check the audio file table for inconsistencies.
2524 *
2525 * \param aca Only ->pbout is used for diagnostics.
2526 *
2527 * \return Standard. Inconsistencies are reported but not regarded as an error.
2528 *
2529 * \sa com_check().
2530 */
2531 int aft_check_callback(struct afs_callback_arg *aca)
2532 {
2533 para_printf(&aca->pbout, "checking audio file table...\n");
2534 return audio_file_loop(&aca->pbout, check_audio_file);
2535 }
2536
2537 struct aft_check_atts_data {
2538 uint64_t att_mask;
2539 struct para_buffer *pb;
2540 };
2541
2542 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2543 {
2544 struct aft_check_atts_data *acad = data;
2545 int ret;
2546 struct afs_info afsi;
2547 char *path;
2548 uint64_t bad_bits;
2549
2550 ret = get_afsi_of_row(row, &afsi);
2551 if (ret < 0) {
2552 para_printf(acad->pb, "cannot get afsi\n");
2553 return ret;
2554 }
2555 bad_bits = afsi.attributes & ~acad->att_mask;
2556 if (bad_bits == 0) /* OK */
2557 return 0;
2558 ret = get_audio_file_path_of_row(row, &path);
2559 if (ret < 0) {
2560 para_printf(acad->pb, "cannot get path\n");
2561 return ret;
2562 }
2563 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2564 bad_bits, path);
2565 /* return success to keep looping */
2566 return 1;
2567 }
2568
2569 /**
2570 * Iterate over all audio files and check the attribute bit mask.
2571 *
2572 * \param att_mask The mask of all valid attributes.
2573 * \param pb Used for reporting inconsistencies.
2574 *
2575 * This reads the attribute bit mask of each audio file from the afs info
2576 * structure stored in the audio file table and verifies that all set bits are
2577 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2578 * attribute table. Audio files for which this is not the case are reported via
2579 * \a pb.
2580 *
2581 * \return Standard. Inconsistencies are not regarded as errors.
2582 *
2583 * \sa \ref attribute_check_callback().
2584 */
2585 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2586 {
2587 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2588
2589 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2590 return audio_file_loop(&acad, check_atts_of_audio_file);
2591 }
2592
2593 /**
2594 * Close the audio file table.
2595 *
2596 * \param flags Usual flags that are passed to osl_close_table().
2597 *
2598 * \sa osl_close_table().
2599 */
2600 static void aft_close(void)
2601 {
2602 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2603 audio_file_table = NULL;
2604 }
2605
2606 /**
2607 * Open the audio file table.
2608 *
2609 * \param dir The database directory.
2610 *
2611 * \return Standard.
2612 *
2613 * \sa osl_open_table().
2614 */
2615 static int aft_open(const char *dir)
2616 {
2617 int ret;
2618
2619 audio_file_table_desc.dir = dir;
2620 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2621 if (ret >= 0) {
2622 unsigned num;
2623 osl_get_num_rows(audio_file_table, &num);
2624 PARA_INFO_LOG("audio file table contains %d files\n", num);
2625 return ret;
2626 }
2627 PARA_NOTICE_LOG("failed to open audio file table\n");
2628 audio_file_table = NULL;
2629 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2630 return 1;
2631 return ret;
2632 }
2633
2634 static int aft_create(const char *dir)
2635 {
2636 audio_file_table_desc.dir = dir;
2637 return osl(osl_create_table(&audio_file_table_desc));
2638 }
2639
2640 static int clear_attribute(struct osl_row *row, void *data)
2641 {
2642 struct rmatt_event_data *red = data;
2643 struct afs_info afsi;
2644 struct osl_object obj;
2645 int ret = get_afsi_object_of_row(row, &obj);
2646 uint64_t mask = ~(1ULL << red->bitnum);
2647
2648 if (ret < 0)
2649 return ret;
2650 ret = load_afsi(&afsi, &obj);
2651 if (ret < 0)
2652 return ret;
2653 afsi.attributes &= mask;
2654 save_afsi(&afsi, &obj);
2655 return 1;
2656 }
2657
2658 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2659 void *data)
2660 {
2661 int ret;
2662
2663 switch (event) {
2664 case ATTRIBUTE_REMOVE: {
2665 const struct rmatt_event_data *red = data;
2666 para_printf(pb, "clearing attribute %s (bit %u) from all "
2667 "entries in the audio file table\n", red->name,
2668 red->bitnum);
2669 return audio_file_loop(data, clear_attribute);
2670 } case AFSI_CHANGE: {
2671 struct afsi_change_event_data *aced = data;
2672 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2673 if (aced->aft_row != current_aft_row)
2674 return 0;
2675 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2676 if (ret < 0)
2677 return ret;
2678 status_item_ls_data.afsi.last_played = old_last_played;
2679 make_status_items();
2680 return 1;
2681 } case AFHI_CHANGE: {
2682 if (data != current_aft_row)
2683 return 0;
2684 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2685 if (ret < 0)
2686 return ret;
2687 make_status_items();
2688 return 1;
2689 } default:
2690 return 0;
2691 }
2692 }
2693
2694 /**
2695 * Initialize the audio file table.
2696 *
2697 * \param t Pointer to the structure to be initialized.
2698 */
2699 void aft_init(struct afs_table *t)
2700 {
2701 t->open = aft_open;
2702 t->close = aft_close;
2703 t->create = aft_create;
2704 t->event_handler = aft_event_handler;
2705 }