Merge branch 'refs/heads/t/strerror'
[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 t;
680
681 if (!localtime_r((time_t *)seconds, &t))
682 return -E_LOCALTIME;
683 if (lm == LS_MODE_MBOX) {
684 if (!strftime(buf, size, "%c", &t))
685 return -E_STRFTIME;
686 return 1;
687 }
688 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
689 if (!strftime(buf, size, "%b %e %k:%M", &t))
690 return -E_STRFTIME;
691 return 1;
692 }
693 if (!strftime(buf, size, "%b %e %Y", &t))
694 return -E_STRFTIME;
695 return 1;
696 }
697
698 /** Compute the number of (decimal) digits of a number. */
699 #define GET_NUM_DIGITS(x, num) { \
700 typeof((x)) _tmp = PARA_ABS(x); \
701 *num = 1; \
702 if ((_tmp)) \
703 while ((_tmp) > 9) { \
704 (_tmp) /= 10; \
705 (*num)++; \
706 } \
707 }
708
709 __a_const static short unsigned get_duration_width(int seconds)
710 {
711 short unsigned width;
712 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
713
714 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
715 return 4 + (mins > 9);
716 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
717 GET_NUM_DIGITS(hours, &width);
718 return width + 6;
719 }
720
721 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
722 {
723 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
724 short unsigned max_width;
725
726 if (!hours) { /* m:ss or mm:ss */
727 max_width = opts->mode == LS_MODE_LONG?
728 opts->widths.duration_width : 4;
729 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
730 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
731 max_width = opts->mode == LS_MODE_LONG?
732 opts->widths.duration_width : 7;
733 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
734 seconds % 60);
735 }
736 }
737
738 static int write_attribute_items(struct para_buffer *b,
739 const char *att_bitmap, struct afs_info *afsi)
740 {
741 char *att_text;
742 int ret;
743
744 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
745 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
746 if (ret < 0)
747 return ret;
748 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
749 free(att_text);
750 return ret;
751 }
752
753 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
754 {
755 char *lyrics_name;
756
757 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
758 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
759 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
760 lyrics_name : "(none)");
761 }
762
763 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
764 {
765 char *image_name;
766
767 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
768 img_get_name_by_id(afsi->image_id, &image_name);
769 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
770 image_name : "(none)");
771 }
772
773 static void write_filename_items(struct para_buffer *b, const char *path,
774 unsigned flags)
775 {
776 char *val;
777
778 if (!(flags & LS_FLAG_FULL_PATH)) {
779 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
780 return;
781 }
782 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
783 val = para_basename(path);
784 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
785 val = para_dirname(path);
786 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
787 free(val);
788 }
789
790 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
791 {
792 struct osl_object chunk_table_obj;
793 struct osl_row *aft_row;
794 int ret, i;
795 char *buf;
796
797 ret = aft_get_row_of_hash(d->hash, &aft_row);
798 if (ret < 0)
799 return ret;
800 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
801 AFTCOL_CHUNKS, &chunk_table_obj));
802 if (ret < 0)
803 return ret;
804 para_printf(b, "%s\n"
805 "chunk_time: %lu:%lu\nchunk_offsets: ",
806 d->path,
807 (long unsigned) d->afhi.chunk_tv.tv_sec,
808 (long unsigned) d->afhi.chunk_tv.tv_usec
809 );
810 buf = chunk_table_obj.data;
811 for (i = 0; i <= d->afhi.chunks_total; i++)
812 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
813 para_printf(b, "\n");
814 ret = 1;
815 osl_close_disk_object(&chunk_table_obj);
816 return ret;
817 }
818
819 static void write_score(struct para_buffer *b, struct ls_data *d,
820 struct ls_options *opts)
821 {
822 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
823 return;
824 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
825 }
826
827 static int print_list_item(struct ls_data *d, struct ls_options *opts,
828 struct para_buffer *b, time_t current_time)
829 {
830 int ret;
831 char att_buf[65];
832 char last_played_time[30];
833 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
834 struct afs_info *afsi = &d->afsi;
835 struct afh_info *afhi = &d->afhi;
836 char asc_hash[2 * HASH_SIZE + 1];
837
838 if (opts->mode == LS_MODE_SHORT) {
839 para_printf(b, "%s\n", d->path);
840 ret = 1;
841 goto out;
842 }
843 if (opts->mode == LS_MODE_CHUNKS) {
844 ret = print_chunk_table(d, b);
845 goto out;
846 }
847 get_attribute_bitmap(&afsi->attributes, att_buf);
848 if (opts->flags & LS_FLAG_UNIXDATE)
849 sprintf(last_played_time, "%llu",
850 (long long unsigned)afsi->last_played);
851 else {
852 ret = get_local_time(&afsi->last_played, last_played_time,
853 sizeof(last_played_time), current_time, opts->mode);
854 if (ret < 0)
855 goto out;
856 }
857 get_duration_buf(afhi->seconds_total, duration_buf, opts);
858 if (opts->mode == LS_MODE_LONG) {
859 struct ls_widths *w = &opts->widths;
860 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
861 para_printf(b, "%*li ", opts->widths.score_width,
862 d->score);
863 }
864 para_printf(b,
865 "%s " /* attributes */
866 "%*u " /* amp */
867 "%*d " /* image_id */
868 "%*d " /* lyrics_id */
869 "%*d " /* bitrate */
870 "%*s " /* audio format */
871 "%*d " /* frequency */
872 "%d " /* channels */
873 "%s " /* duration */
874 "%*d " /* num_played */
875 "%s " /* last_played */
876 "%s\n", /* path */
877 att_buf,
878 w->amp_width, afsi->amp,
879 w->image_id_width, afsi->image_id,
880 w->lyrics_id_width, afsi->lyrics_id,
881 w->bitrate_width, afhi->bitrate,
882 w->audio_format_width,
883 audio_format_name(afsi->audio_format_id),
884 w->frequency_width, afhi->frequency,
885 afhi->channels,
886 duration_buf,
887 w->num_played_width, afsi->num_played,
888 last_played_time,
889 d->path
890 );
891 ret = 1;
892 goto out;
893 }
894 if (opts->mode == LS_MODE_MBOX) {
895 const char *bn = para_basename(d->path);
896 para_printf(b,
897 "From foo@localhost %s\n"
898 "Received: from\nTo: bar\nFrom: a\n"
899 "Subject: %s\n\n",
900 last_played_time,
901 bn? bn : "?");
902 }
903 write_filename_items(b, d->path, opts->flags);
904 write_score(b, d, opts);
905 ret = write_attribute_items(b, att_buf, afsi);
906 if (ret < 0)
907 goto out;
908 write_image_items(b, afsi);
909 write_lyrics_items(b, afsi);
910 hash_to_asc(d->hash, asc_hash);
911 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
912 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
913 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
914 audio_format_name(afsi->audio_format_id));
915 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
916 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
917 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
918 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n", afhi->seconds_total);
919 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
920 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
921 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
922 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
923 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n", afhi->chunks_total);
924 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
925 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
926 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
927 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
928 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
929 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
930 if (opts->mode == LS_MODE_MBOX) {
931 struct osl_object lyrics_def;
932 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
933 if (lyrics_def.data) {
934 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
935 (char *)lyrics_def.data);
936 osl_close_disk_object(&lyrics_def);
937 }
938 }
939 out:
940 return ret;
941 }
942
943 static struct ls_data status_item_ls_data;
944 static struct osl_row *current_aft_row;
945
946 static void make_inode_status_items(struct para_buffer *pb)
947 {
948 struct stat statbuf = {.st_size = 0};
949 char *path, mtime_str[30] = "\0";
950 struct tm mtime_tm;
951 int ret;
952
953 ret = get_audio_file_path_of_row(current_aft_row, &path);
954 if (ret < 0)
955 goto out;
956 ret = stat(path, &statbuf);
957 if (ret < 0)
958 goto out;
959 localtime_r(&statbuf.st_mtime, &mtime_tm);
960 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
961 assert(ret > 0); /* number of bytes placed in mtime_str */
962 out:
963 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
964 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
965 }
966
967 static int make_status_items(void)
968 {
969 struct ls_options opts = {
970 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
971 .mode = LS_MODE_VERBOSE,
972 };
973 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
974 time_t current_time;
975 int ret;
976
977 time(&current_time);
978 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
979 if (ret < 0)
980 return ret;
981 make_inode_status_items(&pb);
982 free(status_items);
983 status_items = pb.buf;
984 memset(&pb, 0, sizeof(pb));
985 pb.max_size = shm_get_shmmax() - 1;
986 pb.flags = PBF_SIZE_PREFIX;
987 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
988 if (ret < 0) {
989 free(status_items);
990 status_items = NULL;
991 return ret;
992 }
993 make_inode_status_items(&pb);
994 free(parser_friendly_status_items);
995 parser_friendly_status_items = pb.buf;
996 return 1;
997 }
998
999 /**
1000 * Open the audio file with highest score and set up an afd structure.
1001 *
1002 * \param afd Result pointer.
1003 *
1004 * On success, the numplayed field of the audio file selector info is increased
1005 * and the lastplayed time is set to the current time. Finally, the score of
1006 * the audio file is updated.
1007 *
1008 * \return Positive shmid on success, negative on errors.
1009 */
1010 int open_and_update_audio_file(struct audio_file_data *afd)
1011 {
1012 unsigned char file_hash[HASH_SIZE];
1013 struct osl_object afsi_obj;
1014 struct afs_info new_afsi;
1015 int ret;
1016 struct afsi_change_event_data aced;
1017 struct osl_object map, chunk_table_obj;
1018 struct ls_data *d = &status_item_ls_data;
1019 again:
1020 ret = score_get_best(&current_aft_row, &d->score);
1021 if (ret < 0)
1022 return ret;
1023 ret = get_hash_of_row(current_aft_row, &d->hash);
1024 if (ret < 0)
1025 return ret;
1026 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1027 if (ret < 0)
1028 return ret;
1029 PARA_NOTICE_LOG("%s\n", d->path);
1030 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1031 if (ret < 0)
1032 return ret;
1033 ret = load_afsi(&d->afsi, &afsi_obj);
1034 if (ret < 0)
1035 return ret;
1036 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1037 if (ret < 0)
1038 return ret;
1039 d->afhi = afd->afhi;
1040 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1041 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1042 AFTCOL_CHUNKS, &chunk_table_obj));
1043 if (ret < 0)
1044 return ret;
1045 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1046 if (ret < 0)
1047 goto out;
1048 hash_function(map.data, map.size, file_hash);
1049 ret = hash_compare(file_hash, d->hash);
1050 para_munmap(map.data, map.size);
1051 if (ret) {
1052 ret = -E_HASH_MISMATCH;
1053 goto out;
1054 }
1055 new_afsi = d->afsi;
1056 new_afsi.num_played++;
1057 new_afsi.last_played = time(NULL);
1058 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1059
1060 afd->audio_format_id = d->afsi.audio_format_id;
1061 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1062 aced.aft_row = current_aft_row;
1063 aced.old_afsi = &d->afsi;
1064 /*
1065 * No need to update the status items as the AFSI_CHANGE event will
1066 * recreate them.
1067 */
1068 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1069 if (ret < 0)
1070 goto out;
1071 ret = save_afd(afd);
1072 out:
1073 free(afd->afhi.chunk_table);
1074 osl_close_disk_object(&chunk_table_obj);
1075 if (ret < 0) {
1076 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1077 ret = score_delete(current_aft_row);
1078 if (ret >= 0)
1079 goto again;
1080 }
1081 return ret;
1082 }
1083
1084 static int ls_audio_format_compare(const void *a, const void *b)
1085 {
1086 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1087 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1088 }
1089
1090 static int ls_duration_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->afhi.seconds_total, d2->afhi.seconds_total);
1094 }
1095
1096 static int ls_bitrate_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.bitrate, d2->afhi.bitrate);
1100 }
1101
1102 static int ls_lyrics_id_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->afsi.lyrics_id, d2->afsi.lyrics_id);
1106 }
1107
1108 static int ls_image_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.image_id, d2->afsi.image_id);
1112 }
1113
1114 static int ls_channels_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->afhi.channels, d2->afhi.channels);
1118 }
1119
1120 static int ls_frequency_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.frequency, d2->afhi.frequency);
1124 }
1125
1126 static int ls_num_played_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->afsi.num_played, d2->afsi.num_played);
1130 }
1131
1132 static int ls_last_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.last_played, d2->afsi.last_played);
1136 }
1137
1138 static int ls_score_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->score, d2->score);
1142 }
1143
1144 static int ls_path_compare(const void *a, const void *b)
1145 {
1146 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1147 return strcmp(d1->path, d2->path);
1148 }
1149
1150 static int sort_matching_paths(struct ls_options *options)
1151 {
1152 size_t nmemb = options->num_matching_paths;
1153 size_t size = sizeof(*options->data_ptr);
1154 int (*compar)(const void *, const void *);
1155 int i;
1156
1157 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1158 for (i = 0; i < nmemb; i++)
1159 options->data_ptr[i] = options->data + i;
1160
1161 /* In these cases the array is already sorted */
1162 if (options->sorting == LS_SORT_BY_PATH
1163 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1164 && (options->flags & LS_FLAG_FULL_PATH))
1165 return 1;
1166 if (options->sorting == LS_SORT_BY_SCORE &&
1167 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1168 return 1;
1169
1170 switch (options->sorting) {
1171 case LS_SORT_BY_PATH:
1172 compar = ls_path_compare; break;
1173 case LS_SORT_BY_SCORE:
1174 compar = ls_score_compare; break;
1175 case LS_SORT_BY_LAST_PLAYED:
1176 compar = ls_last_played_compare; break;
1177 case LS_SORT_BY_NUM_PLAYED:
1178 compar = ls_num_played_compare; break;
1179 case LS_SORT_BY_FREQUENCY:
1180 compar = ls_frequency_compare; break;
1181 case LS_SORT_BY_CHANNELS:
1182 compar = ls_channels_compare; break;
1183 case LS_SORT_BY_IMAGE_ID:
1184 compar = ls_image_id_compare; break;
1185 case LS_SORT_BY_LYRICS_ID:
1186 compar = ls_lyrics_id_compare; break;
1187 case LS_SORT_BY_BITRATE:
1188 compar = ls_bitrate_compare; break;
1189 case LS_SORT_BY_DURATION:
1190 compar = ls_duration_compare; break;
1191 case LS_SORT_BY_AUDIO_FORMAT:
1192 compar = ls_audio_format_compare; break;
1193 default:
1194 return -E_BAD_SORT;
1195 }
1196 qsort(options->data_ptr, nmemb, size, compar);
1197 return 1;
1198 }
1199
1200 /* row is either an aft_row or a row of the score table */
1201 /* TODO: Only compute widths if we need them */
1202 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1203 {
1204 int ret, i;
1205 struct ls_options *options = ls_opts;
1206 struct ls_data *d;
1207 struct ls_widths *w;
1208 unsigned short num_digits;
1209 unsigned tmp;
1210 struct osl_row *aft_row;
1211 long score;
1212 char *path;
1213
1214 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1215 ret = get_score_and_aft_row(row, &score, &aft_row);
1216 if (ret < 0)
1217 return ret;
1218 } else {
1219 aft_row = row;
1220 score = 0;
1221 }
1222 ret = get_audio_file_path_of_row(aft_row, &path);
1223 if (ret < 0)
1224 return ret;
1225 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1226 char *p = strrchr(path, '/');
1227 if (p)
1228 path = p + 1;
1229 }
1230 if (options->num_patterns) {
1231 for (i = 0; i < options->num_patterns; i++) {
1232 ret = fnmatch(options->patterns[i], path, 0);
1233 if (!ret)
1234 break;
1235 if (ret == FNM_NOMATCH)
1236 continue;
1237 return -E_FNMATCH;
1238 }
1239 if (i >= options->num_patterns) /* no match */
1240 return 1;
1241 }
1242 tmp = options->num_matching_paths++;
1243 if (options->num_matching_paths > options->array_size) {
1244 options->array_size++;
1245 options->array_size *= 2;
1246 options->data = para_realloc(options->data, options->array_size
1247 * sizeof(*options->data));
1248 }
1249 d = options->data + tmp;
1250 ret = get_afsi_of_row(aft_row, &d->afsi);
1251 if (ret < 0)
1252 return ret;
1253 ret = get_afhi_of_row(aft_row, &d->afhi);
1254 if (ret < 0)
1255 return ret;
1256 d->path = path;
1257 ret = get_hash_of_row(aft_row, &d->hash);
1258 if (ret < 0)
1259 goto err;
1260 w = &options->widths;
1261 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1262 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1263 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1264 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1265 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1266 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1267 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1268 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1269 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1270 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1271 /* get the number of chars to print this amount of time */
1272 num_digits = get_duration_width(d->afhi.seconds_total);
1273 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1274 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1275 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1276 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1277 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1278 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1279 GET_NUM_DIGITS(score, &num_digits);
1280 num_digits++; /* add one for the sign (space or "-") */
1281 w->score_width = PARA_MAX(w->score_width, num_digits);
1282 d->score = score;
1283 }
1284 return 1;
1285 err:
1286 return ret;
1287 }
1288
1289 static int com_ls_callback(struct afs_callback_arg *aca)
1290 {
1291 struct ls_options *opts = aca->query.data;
1292 char *p, *pattern_start = (char *)aca->query.data + sizeof(*opts);
1293 int i = 0, ret;
1294 time_t current_time;
1295
1296 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1297 if (opts->num_patterns) {
1298 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1299 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1300 opts->patterns[i] = p;
1301 p += strlen(p) + 1;
1302 }
1303 } else
1304 opts->patterns = NULL;
1305 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1306 ret = admissible_file_loop(opts, prepare_ls_row);
1307 else
1308 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1309 prepare_ls_row));
1310 if (ret < 0)
1311 goto out;
1312 if (opts->num_matching_paths == 0) {
1313 ret = opts->num_patterns > 0? -E_NO_MATCH : 0;
1314 goto out;
1315 }
1316 ret = sort_matching_paths(opts);
1317 if (ret < 0)
1318 goto out;
1319 time(&current_time);
1320 if (opts->flags & LS_FLAG_REVERSE)
1321 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1322 ret = print_list_item(opts->data_ptr[i], opts,
1323 &aca->pbout, current_time);
1324 if (ret < 0)
1325 goto out;
1326 }
1327 else
1328 for (i = 0; i < opts->num_matching_paths; i++) {
1329 ret = print_list_item(opts->data_ptr[i], opts,
1330 &aca->pbout, current_time);
1331 if (ret < 0)
1332 goto out;
1333 }
1334 out:
1335 free(opts->data);
1336 free(opts->data_ptr);
1337 free(opts->patterns);
1338 return ret;
1339 }
1340
1341 /*
1342 * TODO: flags -h (sort by hash)
1343 */
1344 int com_ls(struct command_context *cc)
1345 {
1346 int i;
1347 unsigned flags = 0;
1348 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1349 enum ls_listing_mode mode = LS_MODE_SHORT;
1350 struct ls_options opts = {.patterns = NULL};
1351 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1352
1353 for (i = 1; i < cc->argc; i++) {
1354 const char *arg = cc->argv[i];
1355 if (arg[0] != '-')
1356 break;
1357 if (!strcmp(arg, "--")) {
1358 i++;
1359 break;
1360 }
1361 /*
1362 * Compatibility: Prior to 0.5.5 it was necessary to specify
1363 * the listing mode without the '=' character as in -lv, for
1364 * example. Now the variant with '=' is preferred and
1365 * documented but we still accept the old way to specify the
1366 * listing mode.
1367 *
1368 * Support for the legacy syntax can be dropped at 0.6.0
1369 * or later.
1370 */
1371 if (!strncmp(arg, "-l", 2)) {
1372 arg += 2;
1373 if (*arg == '=')
1374 arg++;
1375 switch (*arg) {
1376 case 's':
1377 mode = LS_MODE_SHORT;
1378 continue;
1379 case 'l':
1380 case '\0':
1381 mode = LS_MODE_LONG;
1382 continue;
1383 case 'v':
1384 mode = LS_MODE_VERBOSE;
1385 continue;
1386 case 'm':
1387 mode = LS_MODE_MBOX;
1388 continue;
1389 case 'c':
1390 mode = LS_MODE_CHUNKS;
1391 continue;
1392 case 'p':
1393 mode = LS_MODE_PARSER;
1394 continue;
1395 default:
1396 return -E_AFT_SYNTAX;
1397 }
1398 }
1399 if (!strcmp(arg, "-p")) {
1400 flags |= LS_FLAG_FULL_PATH;
1401 continue;
1402 }
1403 if (!strcmp(arg, "-a")) {
1404 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1405 continue;
1406 }
1407 if (!strcmp(arg, "-r")) {
1408 flags |= LS_FLAG_REVERSE;
1409 continue;
1410 }
1411 if (!strcmp(arg, "-d")) {
1412 flags |= LS_FLAG_UNIXDATE;
1413 continue;
1414 }
1415 /* The compatibility remark above applies also to -s. */
1416 if (!strncmp(arg, "-s", 2)) {
1417 arg += 2;
1418 if (*arg == '=')
1419 arg++;
1420 switch (*arg) {
1421 case 'p':
1422 sort = LS_SORT_BY_PATH;
1423 continue;
1424 case 's': /* -ss implies -a */
1425 sort = LS_SORT_BY_SCORE;
1426 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1427 continue;
1428 case 'l':
1429 sort = LS_SORT_BY_LAST_PLAYED;
1430 continue;
1431 case 'n':
1432 sort = LS_SORT_BY_NUM_PLAYED;
1433 continue;
1434 case 'f':
1435 sort = LS_SORT_BY_FREQUENCY;
1436 continue;
1437 case 'c':
1438 sort = LS_SORT_BY_CHANNELS;
1439 continue;
1440 case 'i':
1441 sort = LS_SORT_BY_IMAGE_ID;
1442 continue;
1443 case 'y':
1444 sort = LS_SORT_BY_LYRICS_ID;
1445 continue;
1446 case 'b':
1447 sort = LS_SORT_BY_BITRATE;
1448 continue;
1449 case 'd':
1450 sort = LS_SORT_BY_DURATION;
1451 continue;
1452 case 'a':
1453 sort = LS_SORT_BY_AUDIO_FORMAT;
1454 continue;
1455 default:
1456 return -E_AFT_SYNTAX;
1457 }
1458 }
1459 return -E_AFT_SYNTAX;
1460 }
1461 opts.flags = flags;
1462 opts.sorting = sort;
1463 opts.mode = mode;
1464 opts.num_patterns = cc->argc - i;
1465 return send_option_arg_callback_request(&query, opts.num_patterns,
1466 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1467 }
1468
1469 /**
1470 * Call the given function for each file in the audio file table.
1471 *
1472 * \param private_data An arbitrary data pointer, passed to \a func.
1473 * \param func The custom function to be called.
1474 *
1475 * \return Standard.
1476 */
1477 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1478 {
1479 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1480 func));
1481 }
1482
1483 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1484 {
1485 int ret = aft_get_row_of_hash(hash, result);
1486
1487 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1488 return 0;
1489 return ret;
1490 }
1491
1492 static int find_path_brother(const char *path, struct osl_row **result)
1493 {
1494 int ret = aft_get_row_of_path(path, result);
1495
1496 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1497 return 0;
1498 return ret;
1499 }
1500
1501 /** The format of the data stored by save_audio_file_data(). */
1502 enum com_add_buffer_offsets {
1503 /* afhi (if present) starts at this offset. */
1504 CAB_AFHI_OFFSET_POS = 0,
1505 /** Start of the chunk table (if present). */
1506 CAB_CHUNKS_OFFSET_POS = 4,
1507 /** Flags given to the add command. */
1508 CAB_FLAGS_OFFSET = 8,
1509 /** Audio format id. */
1510 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1511 /** The hash of the audio file being added. */
1512 CAB_HASH_OFFSET = 13,
1513 /** Start of the path of the audio file. */
1514 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1515 };
1516
1517 /*
1518 * Store the given data to a single buffer. Doesn't need the audio file selector
1519 * info struct as the server knows it as well.
1520 *
1521 * It's OK to call this with afhi == NULL. In this case, the audio format
1522 * handler info won't be stored in the buffer.
1523 */
1524 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1525 struct afh_info *afhi, uint32_t flags,
1526 uint8_t audio_format_num, struct osl_object *obj)
1527 {
1528 size_t path_len = strlen(path) + 1;
1529 size_t afhi_size = sizeof_afhi_buf(afhi);
1530 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1531 + sizeof_chunk_table(afhi);
1532 char *buf = para_malloc(size);
1533 uint32_t pos;
1534
1535 pos = CAB_PATH_OFFSET + path_len;
1536 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1537 save_afhi(afhi, buf + pos);
1538 pos += afhi_size;
1539
1540 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1541 if (afhi)
1542 save_chunk_table(afhi, buf + pos);
1543
1544 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1545 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1546
1547 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1548 strcpy(buf + CAB_PATH_OFFSET, path);
1549
1550 obj->data = buf;
1551 obj->size = size;
1552 }
1553
1554 /*
1555
1556 Overview of the add command.
1557
1558 Input: What was passed to the callback by the command handler.
1559 ~~~~~~
1560 HS: Hash sister. Whether an audio file with identical hash
1561 already exists in the osl database.
1562
1563 PB: Path brother. Whether a file with the given path exists
1564 in the table.
1565
1566 F: Force flag given. Whether add was called with -f.
1567
1568 output: Action performed by the callback.
1569 ~~~~~~~
1570 AFHI: Whether afhi and chunk table are computed and sent.
1571 ACTION: Table modifications to be done by the callback.
1572
1573 +----+----+---+------+---------------------------------------------------+
1574 | HS | PB | F | AFHI | ACTION
1575 +----+----+---+------+---------------------------------------------------+
1576 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1577 | | update path, keep afsi
1578 +----+----+---+------+---------------------------------------------------+
1579 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1580 | | otherwise: remove PB, HS: update path, keep afhi,
1581 | | afsi.
1582 +----+----+---+------+---------------------------------------------------+
1583 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1584 | | HS, keep afsi
1585 +----+----+---+------+---------------------------------------------------+
1586 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1587 +----+----+---+------+---------------------------------------------------+
1588 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1589 | | (force has no effect)
1590 +----+----+---+------+---------------------------------------------------+
1591 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1592 +----+----+---+------+---------------------------------------------------+
1593 | N | N | Y | Y | (new file) create new entry (force has no effect)
1594 +----+----+---+------+---------------------------------------------------+
1595 | N | N | N | Y | (new file) create new entry
1596 +----+----+---+------+---------------------------------------------------+
1597
1598 Notes:
1599
1600 afhi <=> force or no HS
1601 F => AFHI
1602
1603 */
1604
1605 /** Flags passed to the add command. */
1606 enum com_add_flags {
1607 /** Skip paths that exist already. */
1608 ADD_FLAG_LAZY = 1,
1609 /** Force adding. */
1610 ADD_FLAG_FORCE = 2,
1611 /** Print what is being done. */
1612 ADD_FLAG_VERBOSE = 4,
1613 /** Try to add files with unknown suffixes. */
1614 ADD_FLAG_ALL = 8,
1615 };
1616
1617 static int com_add_callback(struct afs_callback_arg *aca)
1618 {
1619 char *buf = aca->query.data, *path;
1620 struct osl_row *pb, *aft_row;
1621 struct osl_row *hs;
1622 struct osl_object objs[NUM_AFT_COLUMNS];
1623 unsigned char *hash;
1624 char asc[2 * HASH_SIZE + 1];
1625 int ret;
1626 char afsi_buf[AFSI_SIZE];
1627 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1628 struct afs_info default_afsi = {.last_played = 0};
1629 uint16_t afhi_offset, chunks_offset;
1630
1631 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1632 hash_to_asc(hash, asc);
1633 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1634 objs[AFTCOL_HASH].size = HASH_SIZE;
1635
1636 path = buf + CAB_PATH_OFFSET;
1637 objs[AFTCOL_PATH].data = path;
1638 objs[AFTCOL_PATH].size = strlen(path) + 1;
1639
1640 PARA_INFO_LOG("request to add %s\n", path);
1641 ret = find_hash_sister(hash, &hs);
1642 if (ret < 0)
1643 goto out;
1644 ret = find_path_brother(path, &pb);
1645 if (ret < 0)
1646 goto out;
1647 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1648 if (flags & ADD_FLAG_VERBOSE)
1649 para_printf(&aca->pbout, "ignoring duplicate\n");
1650 ret = 1;
1651 goto out;
1652 }
1653 if (hs && hs != pb) {
1654 struct osl_object obj;
1655 if (pb) { /* hs trumps pb, remove pb */
1656 if (flags & ADD_FLAG_VERBOSE)
1657 para_printf(&aca->pbout, "removing %s\n", path);
1658 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1659 if (ret < 0)
1660 goto out;
1661 ret = osl(osl_del_row(audio_file_table, pb));
1662 if (ret < 0)
1663 goto out;
1664 pb = NULL;
1665 }
1666 /* file rename, update hs' path */
1667 if (flags & ADD_FLAG_VERBOSE) {
1668 ret = osl(osl_get_object(audio_file_table, hs,
1669 AFTCOL_PATH, &obj));
1670 if (ret < 0)
1671 goto out;
1672 para_printf(&aca->pbout, "renamed from %s\n",
1673 (char *)obj.data);
1674 }
1675 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1676 &objs[AFTCOL_PATH]));
1677 if (ret < 0)
1678 goto out;
1679 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1680 if (ret < 0)
1681 goto out;
1682 if (!(flags & ADD_FLAG_FORCE))
1683 goto out;
1684 }
1685 /* no hs or force mode, child must have sent afhi */
1686 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1687 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1688
1689 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1690 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1691 ret = -E_NO_AFHI;
1692 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1693 goto out;
1694 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1695 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1696 if (pb && !hs) { /* update pb's hash */
1697 char old_asc[2 * HASH_SIZE + 1];
1698 unsigned char *old_hash;
1699 ret = get_hash_of_row(pb, &old_hash);
1700 if (ret < 0)
1701 goto out;
1702 hash_to_asc(old_hash, old_asc);
1703 if (flags & ADD_FLAG_VERBOSE)
1704 para_printf(&aca->pbout, "file change: %s -> %s\n",
1705 old_asc, asc);
1706 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1707 &objs[AFTCOL_HASH]);
1708 if (ret < 0)
1709 goto out;
1710 }
1711 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1712 struct osl_row *row = pb? pb : hs;
1713 /* update afhi and chunk_table */
1714 if (flags & ADD_FLAG_VERBOSE)
1715 para_printf(&aca->pbout,
1716 "updating afhi and chunk table\n");
1717 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1718 &objs[AFTCOL_AFHI]));
1719 if (ret < 0)
1720 goto out;
1721 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1722 &objs[AFTCOL_CHUNKS]));
1723 if (ret < 0)
1724 goto out;
1725 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1726 if (ret < 0)
1727 goto out;
1728 goto out;
1729 }
1730 /* new entry, use default afsi */
1731 if (flags & ADD_FLAG_VERBOSE)
1732 para_printf(&aca->pbout, "new file\n");
1733 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1734 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1735
1736 objs[AFTCOL_AFSI].data = &afsi_buf;
1737 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1738 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1739 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1740 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1741 out:
1742 if (ret < 0)
1743 para_printf(&aca->pbout, "could not add %s\n", path);
1744 return ret;
1745 }
1746
1747 /** Used by com_add(). */
1748 struct private_add_data {
1749 /** The pointer passed to the original command handler. */
1750 struct command_context *cc;
1751 /** The given add flags. */
1752 uint32_t flags;
1753 };
1754
1755 static int path_brother_callback(struct afs_callback_arg *aca)
1756 {
1757 char *path = aca->query.data;
1758 struct osl_row *path_brother;
1759 int ret = find_path_brother(path, &path_brother);
1760 if (ret <= 0)
1761 return ret;
1762 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1763 sizeof(path_brother));
1764 }
1765
1766 static int hash_sister_callback(struct afs_callback_arg *aca)
1767 {
1768 unsigned char *hash = aca->query.data;
1769 struct osl_row *hash_sister;
1770 int ret = find_hash_sister(hash, &hash_sister);
1771
1772 if (ret <= 0)
1773 return ret;
1774 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1775 sizeof(hash_sister));
1776 }
1777
1778 static int get_row_pointer_from_result(struct osl_object *result,
1779 __a_unused uint8_t band, void *private)
1780 {
1781 struct osl_row **row = private;
1782
1783 if (band == SBD_OUTPUT)
1784 *row = *(struct osl_row **)(result->data);
1785 return 1;
1786 }
1787
1788 static int add_one_audio_file(const char *path, void *private_data)
1789 {
1790 int ret, send_ret = 1, fd;
1791 uint8_t format_num = -1;
1792 struct private_add_data *pad = private_data;
1793 struct afh_info afhi, *afhi_ptr = NULL;
1794 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1795 struct osl_object map, obj = {.data = NULL}, query;
1796 unsigned char hash[HASH_SIZE];
1797
1798 ret = guess_audio_format(path);
1799 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1800 ret = 0;
1801 goto out_free;
1802 }
1803 query.data = (char *)path;
1804 query.size = strlen(path) + 1;
1805 ret = send_callback_request(path_brother_callback, &query,
1806 get_row_pointer_from_result, &pb);
1807 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1808 goto out_free;
1809 ret = 1;
1810 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1811 if (pad->flags & ADD_FLAG_VERBOSE)
1812 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1813 "lazy-ignore: %s\n", path);
1814 goto out_free;
1815 }
1816 /* We still want to add this file. Compute its hash. */
1817 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1818 if (ret < 0)
1819 goto out_free;
1820 hash_function(map.data, map.size, hash);
1821
1822 /* Check whether the database contains a file with the same hash. */
1823 query.data = hash;
1824 query.size = HASH_SIZE;
1825 ret = send_callback_request(hash_sister_callback, &query,
1826 get_row_pointer_from_result, &hs);
1827 if (ret < 0)
1828 goto out_unmap;
1829 /* Return success if we already know this file. */
1830 ret = 1;
1831 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1832 if (pad->flags & ADD_FLAG_VERBOSE)
1833 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1834 "%s exists, not forcing update\n", path);
1835 goto out_unmap;
1836 }
1837 /*
1838 * We won't recalculate the audio format info and the chunk table if
1839 * there is a hash sister and FORCE was not given.
1840 */
1841 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1842 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1843 if (ret < 0)
1844 goto out_unmap;
1845 format_num = ret;
1846 afhi_ptr = &afhi;
1847 }
1848 munmap(map.data, map.size);
1849 close(fd);
1850 if (pad->flags & ADD_FLAG_VERBOSE) {
1851 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1852 "adding %s\n", path);
1853 if (send_ret < 0)
1854 goto out_free;
1855 }
1856 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1857 /* Ask afs to consider this entry for adding. */
1858 ret = send_callback_request(com_add_callback, &obj,
1859 afs_cb_result_handler, pad->cc);
1860 goto out_free;
1861
1862 out_unmap:
1863 close(fd);
1864 munmap(map.data, map.size);
1865 out_free:
1866 if (ret < 0 && send_ret >= 0)
1867 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1868 "failed to add %s (%s)\n", path, para_strerror(-ret));
1869 free(obj.data);
1870 clear_afhi(afhi_ptr);
1871 /* Stop adding files only on send errors. */
1872 return send_ret;
1873 }
1874
1875 int com_add(struct command_context *cc)
1876 {
1877 int i, ret;
1878 struct private_add_data pad = {.cc = cc, .flags = 0};
1879
1880 for (i = 1; i < cc->argc; i++) {
1881 const char *arg = cc->argv[i];
1882 if (arg[0] != '-')
1883 break;
1884 if (!strcmp(arg, "--")) {
1885 i++;
1886 break;
1887 }
1888 if (!strcmp(arg, "-a")) {
1889 pad.flags |= ADD_FLAG_ALL;
1890 continue;
1891 }
1892 if (!strcmp(arg, "-l")) {
1893 pad.flags |= ADD_FLAG_LAZY;
1894 continue;
1895 }
1896 if (!strcmp(arg, "-f")) {
1897 pad.flags |= ADD_FLAG_FORCE;
1898 continue;
1899 }
1900 if (!strcmp(arg, "-v")) {
1901 pad.flags |= ADD_FLAG_VERBOSE;
1902 continue;
1903 }
1904 }
1905 if (cc->argc <= i)
1906 return -E_AFT_SYNTAX;
1907 for (; i < cc->argc; i++) {
1908 char *path;
1909 ret = verify_path(cc->argv[i], &path);
1910 if (ret < 0) {
1911 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1912 cc->argv[i], para_strerror(-ret));
1913 if (ret < 0)
1914 return ret;
1915 continue;
1916 }
1917 if (ret == 1) /* directory */
1918 ret = for_each_file_in_dir(path, add_one_audio_file,
1919 &pad);
1920 else /* regular file */
1921 ret = add_one_audio_file(path, &pad);
1922 if (ret < 0) {
1923 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1924 para_strerror(-ret));
1925 free(path);
1926 return ret;
1927 }
1928 free(path);
1929 }
1930 return 1;
1931 }
1932
1933 /**
1934 * Flags used by the touch command.
1935 *
1936 * \sa com_touch().
1937 */
1938 enum touch_flags {
1939 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1940 TOUCH_FLAG_FNM_PATHNAME = 1,
1941 /** Activates verbose mode. */
1942 TOUCH_FLAG_VERBOSE = 2
1943 };
1944
1945 /** Options used by com_touch(). */
1946 struct com_touch_options {
1947 /** New num_played value. */
1948 int32_t num_played;
1949 /** New last played count. */
1950 int64_t last_played;
1951 /** New lyrics id. */
1952 int32_t lyrics_id;
1953 /** New image id. */
1954 int32_t image_id;
1955 /** New amplification value. */
1956 int32_t amp;
1957 /** Command line flags (see \ref touch_flags). */
1958 unsigned flags;
1959 };
1960
1961 static int touch_audio_file(__a_unused struct osl_table *table,
1962 struct osl_row *row, const char *name, void *data)
1963 {
1964 struct afs_callback_arg *aca = data;
1965 struct com_touch_options *cto = aca->query.data;
1966 struct osl_object obj;
1967 struct afs_info old_afsi, new_afsi;
1968 int ret, no_options = cto->num_played < 0 && cto->last_played < 0 &&
1969 cto->lyrics_id < 0 && cto->image_id < 0 && cto->amp < 0;
1970 struct afsi_change_event_data aced;
1971
1972 ret = get_afsi_object_of_row(row, &obj);
1973 if (ret < 0) {
1974 para_printf(&aca->pbout, "cannot touch %s\n", name);
1975 return ret;
1976 }
1977 ret = load_afsi(&old_afsi, &obj);
1978 if (ret < 0) {
1979 para_printf(&aca->pbout, "cannot touch %s\n", name);
1980 return ret;
1981 }
1982 new_afsi = old_afsi;
1983 if (no_options) {
1984 new_afsi.num_played++;
1985 new_afsi.last_played = time(NULL);
1986 if (cto->flags & TOUCH_FLAG_VERBOSE)
1987 para_printf(&aca->pbout, "%s: num_played = %u, "
1988 "last_played = now()\n", name,
1989 new_afsi.num_played);
1990 } else {
1991 if (cto->flags & TOUCH_FLAG_VERBOSE)
1992 para_printf(&aca->pbout, "touching %s\n", name);
1993 if (cto->lyrics_id >= 0)
1994 new_afsi.lyrics_id = cto->lyrics_id;
1995 if (cto->image_id >= 0)
1996 new_afsi.image_id = cto->image_id;
1997 if (cto->num_played >= 0)
1998 new_afsi.num_played = cto->num_played;
1999 if (cto->last_played >= 0)
2000 new_afsi.last_played = cto->last_played;
2001 if (cto->amp >= 0)
2002 new_afsi.amp = cto->amp;
2003 }
2004 save_afsi(&new_afsi, &obj); /* in-place update */
2005 aced.aft_row = row;
2006 aced.old_afsi = &old_afsi;
2007 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
2008 }
2009
2010 static int com_touch_callback(struct afs_callback_arg *aca)
2011 {
2012 int ret;
2013 struct com_touch_options *cto = aca->query.data;
2014 struct pattern_match_data pmd = {
2015 .table = audio_file_table,
2016 .loop_col_num = AFTCOL_HASH,
2017 .match_col_num = AFTCOL_PATH,
2018 .patterns = {
2019 .data = (char *)aca->query.data
2020 + sizeof(struct com_touch_options),
2021 .size = aca->query.size
2022 - sizeof(struct com_touch_options)
2023 },
2024 .data = aca,
2025 .action = touch_audio_file
2026 };
2027 if (cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2028 pmd.fnmatch_flags |= FNM_PATHNAME;
2029 ret = for_each_matching_row(&pmd);
2030 if (ret >= 0 && pmd.num_matches == 0)
2031 ret = -E_NO_MATCH;
2032 return ret;
2033 }
2034
2035 int com_touch(struct command_context *cc)
2036 {
2037 struct com_touch_options cto = {
2038 .num_played = -1,
2039 .last_played = -1,
2040 .lyrics_id = -1,
2041 .image_id = -1,
2042 .amp = -1,
2043 };
2044 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2045 int i, ret;
2046
2047
2048 for (i = 1; i < cc->argc; i++) {
2049 const char *arg = cc->argv[i];
2050 if (arg[0] != '-')
2051 break;
2052 if (!strcmp(arg, "--")) {
2053 i++;
2054 break;
2055 }
2056 if (!strncmp(arg, "-n=", 3)) {
2057 ret = para_atoi32(arg + 3, &cto.num_played);
2058 if (ret < 0)
2059 return ret;
2060 continue;
2061 }
2062 if (!strncmp(arg, "-l=", 3)) {
2063 ret = para_atoi64(arg + 3, &cto.last_played);
2064 if (ret < 0)
2065 return ret;
2066 continue;
2067 }
2068 if (!strncmp(arg, "-y=", 3)) {
2069 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2070 if (ret < 0)
2071 return ret;
2072 continue;
2073 }
2074 if (!strncmp(arg, "-i=", 3)) {
2075 ret = para_atoi32(arg + 3, &cto.image_id);
2076 if (ret < 0)
2077 return ret;
2078 continue;
2079 }
2080 if (!strncmp(arg, "-a=", 3)) {
2081 int32_t val;
2082 ret = para_atoi32(arg + 3, &val);
2083 if (ret < 0)
2084 return ret;
2085 if (val < 0 || val > 255)
2086 return -ERRNO_TO_PARA_ERROR(EINVAL);
2087 cto.amp = val;
2088 continue;
2089 }
2090 if (!strcmp(arg, "-p")) {
2091 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2092 continue;
2093 }
2094 if (!strcmp(arg, "-v")) {
2095 cto.flags |= TOUCH_FLAG_VERBOSE;
2096 continue;
2097 }
2098 break; /* non-option starting with dash */
2099 }
2100 if (i >= cc->argc)
2101 return -E_AFT_SYNTAX;
2102 return send_option_arg_callback_request(&query, cc->argc - i,
2103 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2104 }
2105
2106 /** Flags for com_rm(). */
2107 enum rm_flags {
2108 /** -v */
2109 RM_FLAG_VERBOSE = 1,
2110 /** -f */
2111 RM_FLAG_FORCE = 2,
2112 /** -p */
2113 RM_FLAG_FNM_PATHNAME = 4
2114 };
2115
2116 static int remove_audio_file(__a_unused struct osl_table *table,
2117 struct osl_row *row, const char *name, void *data)
2118 {
2119 struct afs_callback_arg *aca = data;
2120 uint32_t flags =*(uint32_t *)aca->query.data;
2121 int ret;
2122
2123 if (flags & RM_FLAG_VERBOSE)
2124 para_printf(&aca->pbout, "removing %s\n", name);
2125 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2126 if (ret < 0)
2127 return ret;
2128 ret = osl(osl_del_row(audio_file_table, row));
2129 if (ret < 0)
2130 para_printf(&aca->pbout, "cannot remove %s\n", name);
2131 return ret;
2132 }
2133
2134 static int com_rm_callback(struct afs_callback_arg *aca)
2135 {
2136 int ret;
2137 uint32_t flags = *(uint32_t *)aca->query.data;
2138 struct pattern_match_data pmd = {
2139 .table = audio_file_table,
2140 .loop_col_num = AFTCOL_HASH,
2141 .match_col_num = AFTCOL_PATH,
2142 .patterns = {.data = (char *)aca->query.data + sizeof(uint32_t),
2143 .size = aca->query.size - sizeof(uint32_t)},
2144 .data = aca,
2145 .action = remove_audio_file
2146 };
2147 if (flags & RM_FLAG_FNM_PATHNAME)
2148 pmd.fnmatch_flags |= FNM_PATHNAME;
2149 ret = for_each_matching_row(&pmd);
2150 if (ret < 0)
2151 goto out;
2152 if (pmd.num_matches == 0) {
2153 if (!(flags & RM_FLAG_FORCE))
2154 ret = -E_NO_MATCH;
2155 } else if (flags & RM_FLAG_VERBOSE)
2156 para_printf(&aca->pbout, "removed %u file(s)\n",
2157 pmd.num_matches);
2158 out:
2159 return ret;
2160 }
2161
2162 /* TODO options: -r (recursive) */
2163 int com_rm(struct command_context *cc)
2164 {
2165 uint32_t flags = 0;
2166 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2167 int i;
2168
2169 for (i = 1; i < cc->argc; i++) {
2170 const char *arg = cc->argv[i];
2171 if (arg[0] != '-')
2172 break;
2173 if (!strcmp(arg, "--")) {
2174 i++;
2175 break;
2176 }
2177 if (!strcmp(arg, "-f")) {
2178 flags |= RM_FLAG_FORCE;
2179 continue;
2180 }
2181 if (!strcmp(arg, "-p")) {
2182 flags |= RM_FLAG_FNM_PATHNAME;
2183 continue;
2184 }
2185 if (!strcmp(arg, "-v")) {
2186 flags |= RM_FLAG_VERBOSE;
2187 continue;
2188 }
2189 break;
2190 }
2191 if (i >= cc->argc)
2192 return -E_AFT_SYNTAX;
2193 return send_option_arg_callback_request(&query, cc->argc - i,
2194 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2195 }
2196
2197 /**
2198 * Flags used by the cpsi command.
2199 *
2200 * \sa com_cpsi().
2201 */
2202 enum cpsi_flags {
2203 /** Whether the lyrics id should be copied. */
2204 CPSI_FLAG_COPY_LYRICS_ID = 1,
2205 /** Whether the image id should be copied. */
2206 CPSI_FLAG_COPY_IMAGE_ID = 2,
2207 /** Whether the lastplayed time should be copied. */
2208 CPSI_FLAG_COPY_LASTPLAYED = 4,
2209 /** Whether the numplayed count should be copied. */
2210 CPSI_FLAG_COPY_NUMPLAYED = 8,
2211 /** Whether the attributes should be copied. */
2212 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2213 /** Activates verbose mode. */
2214 CPSI_FLAG_VERBOSE = 32,
2215 };
2216
2217 /** Data passed to the action handler of com_cpsi(). */
2218 struct cpsi_action_data {
2219 /** command line flags (see \ref cpsi_flags). */
2220 unsigned flags;
2221 /** Values are copied from here. */
2222 struct afs_info source_afsi;
2223 /** What was passed to com_cpsi_callback(). */
2224 struct afs_callback_arg *aca;
2225 };
2226
2227 static int copy_selector_info(__a_unused struct osl_table *table,
2228 struct osl_row *row, const char *name, void *data)
2229 {
2230 struct cpsi_action_data *cad = data;
2231 struct osl_object target_afsi_obj;
2232 int ret;
2233 struct afs_info old_afsi, target_afsi;
2234 struct afsi_change_event_data aced;
2235
2236 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2237 if (ret < 0)
2238 return ret;
2239 load_afsi(&target_afsi, &target_afsi_obj);
2240 old_afsi = target_afsi;
2241 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2242 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2243 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2244 target_afsi.image_id = cad->source_afsi.image_id;
2245 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2246 target_afsi.last_played = cad->source_afsi.last_played;
2247 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2248 target_afsi.num_played = cad->source_afsi.num_played;
2249 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2250 target_afsi.attributes = cad->source_afsi.attributes;
2251 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2252 if (cad->flags & CPSI_FLAG_VERBOSE)
2253 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2254 aced.aft_row = row;
2255 aced.old_afsi = &old_afsi;
2256 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2257 }
2258
2259 static int com_cpsi_callback(struct afs_callback_arg *aca)
2260 {
2261 struct cpsi_action_data cad = {
2262 .flags = *(unsigned *)aca->query.data,
2263 .aca = aca
2264 };
2265 int ret;
2266 char *source_path = (char *)aca->query.data + sizeof(cad.flags);
2267 struct pattern_match_data pmd = {
2268 .table = audio_file_table,
2269 .loop_col_num = AFTCOL_HASH,
2270 .match_col_num = AFTCOL_PATH,
2271 .patterns = {.data = source_path + strlen(source_path) + 1,
2272 .size = aca->query.size - sizeof(cad.flags)
2273 - strlen(source_path) - 1},
2274 .data = &cad,
2275 .action = copy_selector_info
2276 };
2277
2278 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2279 if (ret < 0)
2280 goto out;
2281 ret = for_each_matching_row(&pmd);
2282 if (ret < 0)
2283 goto out;
2284 if (pmd.num_matches > 0) {
2285 if (cad.flags & CPSI_FLAG_VERBOSE)
2286 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2287 pmd.num_matches);
2288 } else
2289 ret = -E_NO_MATCH;
2290 out:
2291 return ret;
2292 }
2293
2294 int com_cpsi(struct command_context *cc)
2295 {
2296 unsigned flags = 0;
2297 int i;
2298 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2299
2300 for (i = 1; i < cc->argc; i++) {
2301 const char *arg = cc->argv[i];
2302 if (arg[0] != '-')
2303 break;
2304 if (!strcmp(arg, "--")) {
2305 i++;
2306 break;
2307 }
2308 if (!strcmp(arg, "-y")) {
2309 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2310 continue;
2311 }
2312 if (!strcmp(arg, "-i")) {
2313 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2314 continue;
2315 }
2316 if (!strcmp(arg, "-l")) {
2317 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2318 continue;
2319 }
2320 if (!strcmp(arg, "-n")) {
2321 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2322 continue;
2323 }
2324 if (!strcmp(arg, "-a")) {
2325 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2326 continue;
2327 }
2328 if (!strcmp(arg, "-v")) {
2329 flags |= CPSI_FLAG_VERBOSE;
2330 continue;
2331 }
2332 break;
2333 }
2334 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2335 return -E_AFT_SYNTAX;
2336 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2337 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2338 return send_option_arg_callback_request(&options, cc->argc - i,
2339 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2340 }
2341
2342 struct change_atts_data {
2343 uint64_t add_mask, del_mask;
2344 struct afs_callback_arg *aca;
2345 };
2346
2347 static int change_atts(__a_unused struct osl_table *table,
2348 struct osl_row *row, __a_unused const char *name, void *data)
2349 {
2350 int ret;
2351 struct osl_object obj;
2352 struct afs_info old_afsi, new_afsi;
2353 struct afsi_change_event_data aced = {
2354 .aft_row = row,
2355 .old_afsi = &old_afsi
2356 };
2357 struct change_atts_data *cad = data;
2358
2359 ret = get_afsi_object_of_row(row, &obj);
2360 if (ret < 0)
2361 return ret;
2362 ret = load_afsi(&old_afsi, &obj);
2363 if (ret < 0)
2364 return ret;
2365 new_afsi = old_afsi;
2366 new_afsi.attributes |= cad->add_mask;
2367 new_afsi.attributes &= ~cad->del_mask;
2368 save_afsi(&new_afsi, &obj); /* in-place update */
2369 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2370 }
2371
2372 static int com_setatt_callback(struct afs_callback_arg *aca)
2373 {
2374 char *p;
2375 int ret;
2376 size_t len;
2377 struct change_atts_data cad = {.aca = aca};
2378 struct pattern_match_data pmd = {
2379 .table = audio_file_table,
2380 .loop_col_num = AFTCOL_HASH,
2381 .match_col_num = AFTCOL_PATH,
2382 .pm_flags = PM_SKIP_EMPTY_NAME,
2383 .data = &cad,
2384 .action = change_atts
2385 };
2386
2387 for (
2388 p = aca->query.data;
2389 p < (char *)aca->query.data + aca->query.size;
2390 p += len + 1
2391 ) {
2392 char c;
2393 unsigned char bitnum;
2394
2395 len = strlen(p);
2396 ret = -E_ATTR_SYNTAX;
2397 if (len == 0)
2398 goto out;
2399 c = p[len - 1];
2400 if (c != '+' && c != '-')
2401 break;
2402 p[len - 1] = '\0';
2403 ret = get_attribute_bitnum_by_name(p, &bitnum);
2404 if (ret < 0) {
2405 para_printf(&aca->pbout, "attribute not found: %s\n", p);
2406 goto out;
2407 }
2408 if (c == '+')
2409 cad.add_mask |= (1UL << bitnum);
2410 else
2411 cad.del_mask |= (1UL << bitnum);
2412 }
2413 ret = -E_ATTR_SYNTAX;
2414 if (!cad.add_mask && !cad.del_mask)
2415 goto out;
2416 pmd.patterns.data = p;
2417 if (p >= (char *)aca->query.data + aca->query.size)
2418 goto out;
2419 pmd.patterns.size = (char *)aca->query.data + aca->query.size - p;
2420 ret = for_each_matching_row(&pmd);
2421 if (ret < 0)
2422 goto out;
2423 if (pmd.num_matches == 0)
2424 ret = -E_NO_MATCH;
2425 out:
2426 return ret;
2427 }
2428
2429 int com_setatt(struct command_context *cc)
2430 {
2431 if (cc->argc < 3)
2432 return -E_ATTR_SYNTAX;
2433 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2434 com_setatt_callback, afs_cb_result_handler, cc);
2435 }
2436
2437 static int afs_stat_callback(struct afs_callback_arg *aca)
2438 {
2439 int *parser_friendly = aca->query.data;
2440 char *buf = *parser_friendly?
2441 parser_friendly_status_items : status_items;
2442
2443 if (!buf)
2444 return 0;
2445 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2446 }
2447
2448 /**
2449 * Get the current afs status items from the afs process and send it.
2450 *
2451 * \param cc The command context, used e.g. for data encryption.
2452 * \param parser_friendly Whether parser-friendly output format should be used.
2453 *
2454 * As the contents of the afs status items change in time and the command
2455 * handler only has a COW version created at fork time, it can not send
2456 * up-to-date afs status items directly. Therefore the usual callback mechanism
2457 * is used to pass the status items from the afs process to the command handler
2458 * via a shared memory area and a pipe.
2459 *
2460 * \return The return value of the underlying call to \ref send_callback_request().
2461 */
2462 int send_afs_status(struct command_context *cc, int parser_friendly)
2463 {
2464 struct osl_object query = {.data = &parser_friendly,
2465 .size = sizeof(parser_friendly)};
2466
2467 return send_callback_request(afs_stat_callback, &query,
2468 afs_cb_result_handler, cc);
2469 }
2470
2471 /* returns success on non-fatal errors to keep the loop going */
2472 static int check_audio_file(struct osl_row *row, void *data)
2473 {
2474 char *path;
2475 struct para_buffer *pb = data;
2476 struct stat statbuf;
2477 int ret = get_audio_file_path_of_row(row, &path);
2478 struct afs_info afsi;
2479 char *blob_name;
2480
2481 if (ret < 0) {
2482 para_printf(pb, "%s\n", para_strerror(-ret));
2483 return ret;
2484 }
2485 if (stat(path, &statbuf) < 0)
2486 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2487 else if (!S_ISREG(statbuf.st_mode))
2488 para_printf(pb, "%s: not a regular file\n", path);
2489 ret = get_afsi_of_row(row, &afsi);
2490 if (ret < 0) {
2491 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2492 return 1;
2493 }
2494 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2495 if (ret < 0)
2496 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2497 para_strerror(-ret));
2498 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2499 if (ret < 0)
2500 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2501 para_strerror(-ret));
2502 return 0;
2503 }
2504
2505 /**
2506 * Check the audio file table for inconsistencies.
2507 *
2508 * \param aca Only ->pbout is used for diagnostics.
2509 *
2510 * \return Standard. Inconsistencies are reported but not regarded as an error.
2511 *
2512 * \sa com_check().
2513 */
2514 int aft_check_callback(struct afs_callback_arg *aca)
2515 {
2516 para_printf(&aca->pbout, "checking audio file table...\n");
2517 return audio_file_loop(&aca->pbout, check_audio_file);
2518 }
2519
2520 struct aft_check_atts_data {
2521 uint64_t att_mask;
2522 struct para_buffer *pb;
2523 };
2524
2525 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2526 {
2527 struct aft_check_atts_data *acad = data;
2528 int ret;
2529 struct afs_info afsi;
2530 char *path;
2531 uint64_t bad_bits;
2532
2533 ret = get_afsi_of_row(row, &afsi);
2534 if (ret < 0) {
2535 para_printf(acad->pb, "cannot get afsi\n");
2536 return ret;
2537 }
2538 bad_bits = afsi.attributes & ~acad->att_mask;
2539 if (bad_bits == 0) /* OK */
2540 return 0;
2541 ret = get_audio_file_path_of_row(row, &path);
2542 if (ret < 0) {
2543 para_printf(acad->pb, "cannot get path\n");
2544 return ret;
2545 }
2546 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2547 bad_bits, path);
2548 /* return success to keep looping */
2549 return 1;
2550 }
2551
2552 /**
2553 * Iterate over all audio files and check the attribute bit mask.
2554 *
2555 * \param att_mask The mask of all valid attributes.
2556 * \param pb Used for reporting inconsistencies.
2557 *
2558 * This reads the attribute bit mask of each audio file from the afs info
2559 * structure stored in the audio file table and verifies that all set bits are
2560 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2561 * attribute table. Audio files for which this is not the case are reported via
2562 * \a pb.
2563 *
2564 * \return Standard. Inconsistencies are not regarded as errors.
2565 *
2566 * \sa \ref attribute_check_callback().
2567 */
2568 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2569 {
2570 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2571
2572 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2573 return audio_file_loop(&acad, check_atts_of_audio_file);
2574 }
2575
2576 /**
2577 * Close the audio file table.
2578 *
2579 * \param flags Usual flags that are passed to osl_close_table().
2580 *
2581 * \sa osl_close_table().
2582 */
2583 static void aft_close(void)
2584 {
2585 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2586 audio_file_table = NULL;
2587 }
2588
2589 /**
2590 * Open the audio file table.
2591 *
2592 * \param dir The database directory.
2593 *
2594 * \return Standard.
2595 *
2596 * \sa osl_open_table().
2597 */
2598 static int aft_open(const char *dir)
2599 {
2600 int ret;
2601
2602 audio_file_table_desc.dir = dir;
2603 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2604 if (ret >= 0) {
2605 unsigned num;
2606 osl_get_num_rows(audio_file_table, &num);
2607 PARA_INFO_LOG("audio file table contains %d files\n", num);
2608 return ret;
2609 }
2610 PARA_NOTICE_LOG("failed to open audio file table\n");
2611 audio_file_table = NULL;
2612 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2613 return 1;
2614 return ret;
2615 }
2616
2617 static int aft_create(const char *dir)
2618 {
2619 audio_file_table_desc.dir = dir;
2620 return osl(osl_create_table(&audio_file_table_desc));
2621 }
2622
2623 static int clear_attribute(struct osl_row *row, void *data)
2624 {
2625 struct rmatt_event_data *red = data;
2626 struct afs_info afsi;
2627 struct osl_object obj;
2628 int ret = get_afsi_object_of_row(row, &obj);
2629 uint64_t mask = ~(1ULL << red->bitnum);
2630
2631 if (ret < 0)
2632 return ret;
2633 ret = load_afsi(&afsi, &obj);
2634 if (ret < 0)
2635 return ret;
2636 afsi.attributes &= mask;
2637 save_afsi(&afsi, &obj);
2638 return 1;
2639 }
2640
2641 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2642 void *data)
2643 {
2644 int ret;
2645
2646 switch (event) {
2647 case ATTRIBUTE_REMOVE: {
2648 const struct rmatt_event_data *red = data;
2649 para_printf(pb, "clearing attribute %s (bit %u) from all "
2650 "entries in the audio file table\n", red->name,
2651 red->bitnum);
2652 return audio_file_loop(data, clear_attribute);
2653 } case AFSI_CHANGE: {
2654 struct afsi_change_event_data *aced = data;
2655 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2656 if (aced->aft_row != current_aft_row)
2657 return 0;
2658 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2659 if (ret < 0)
2660 return ret;
2661 status_item_ls_data.afsi.last_played = old_last_played;
2662 make_status_items();
2663 return 1;
2664 } case AFHI_CHANGE: {
2665 if (data != current_aft_row)
2666 return 0;
2667 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2668 if (ret < 0)
2669 return ret;
2670 make_status_items();
2671 return 1;
2672 } default:
2673 return 0;
2674 }
2675 }
2676
2677 /**
2678 * Initialize the audio file table.
2679 *
2680 * \param t Pointer to the structure to be initialized.
2681 */
2682 void aft_init(struct afs_table *t)
2683 {
2684 t->open = aft_open;
2685 t->close = aft_close;
2686 t->create = aft_create;
2687 t->event_handler = aft_event_handler;
2688 }