time.c: tv_convex_combination() fixes.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <dirent.h> /* readdir() */
11 #include <openssl/rc4.h>
12 #include <sys/mman.h>
13 #include <fnmatch.h>
14 #include <sys/shm.h>
15 #include <osl.h>
16
17 #include "para.h"
18 #include "error.h"
19 #include "crypt.h"
20 #include "string.h"
21 #include "afh.h"
22 #include "afs.h"
23 #include "net.h"
24 #include "vss.h"
25 #include "fd.h"
26 #include "ipc.h"
27 #include "portable_io.h"
28
29 static struct osl_table *audio_file_table;
30 static char *status_items;
31 static char *parser_friendly_status_items;
32
33 /** The different sorting methods of the ls command. */
34 enum ls_sorting_method {
35 /** -sp (default) */
36 LS_SORT_BY_PATH,
37 /** -ss */
38 LS_SORT_BY_SCORE,
39 /** -sl */
40 LS_SORT_BY_LAST_PLAYED,
41 /** -sn */
42 LS_SORT_BY_NUM_PLAYED,
43 /** -sf */
44 LS_SORT_BY_FREQUENCY,
45 /** -sc */
46 LS_SORT_BY_CHANNELS,
47 /** -si */
48 LS_SORT_BY_IMAGE_ID,
49 /** -sy */
50 LS_SORT_BY_LYRICS_ID,
51 /** -sb */
52 LS_SORT_BY_BITRATE,
53 /** -sd */
54 LS_SORT_BY_DURATION,
55 /** -sa */
56 LS_SORT_BY_AUDIO_FORMAT,
57 /** -sh */
58 LS_SORT_BY_HASH,
59 };
60
61 /** The different listing modes of the ls command. */
62 enum ls_listing_mode {
63 /** Default listing mode. */
64 LS_MODE_SHORT,
65 /** -l or -ll */
66 LS_MODE_LONG,
67 /** -lv */
68 LS_MODE_VERBOSE,
69 /** -lm */
70 LS_MODE_MBOX,
71 /** -lc */
72 LS_MODE_CHUNKS,
73 /** -lp */
74 LS_MODE_PARSER,
75 };
76
77 /** The flags accepted by the ls command. */
78 enum ls_flags {
79 /** -p */
80 LS_FLAG_FULL_PATH = 1,
81 /** -a */
82 LS_FLAG_ADMISSIBLE_ONLY = 2,
83 /** -r */
84 LS_FLAG_REVERSE = 4,
85 /** -d */
86 LS_FLAG_UNIXDATE = 8,
87 };
88
89 /**
90 * The size of the individual output fields of the ls command.
91 *
92 * These depend on the actual content being listed. If, for instance only files
93 * with duration less than an hour are being listed, then the duration with is
94 * made smaller because then the duration is listed as mm:ss rather than
95 * hh:mm:ss.
96 */
97 struct ls_widths {
98 /** size of the score field. */
99 unsigned short score_width;
100 /** size of the image id field. */
101 unsigned short image_id_width;
102 /** size of the lyrics id field. */
103 unsigned short lyrics_id_width;
104 /** size of the bitrate field. */
105 unsigned short bitrate_width;
106 /** size of the frequency field. */
107 unsigned short frequency_width;
108 /** size of the duration field. */
109 unsigned short duration_width;
110 /** size of the num played field. */
111 unsigned short num_played_width;
112 /** size of the amp field. */
113 unsigned short amp_width;
114 };
115
116 /** Data passed from the ls command handler to its callback function. */
117 struct ls_options {
118 /** The given command line flags. */
119 unsigned flags;
120 /** The sorting method given at the command line. */
121 enum ls_sorting_method sorting;
122 /** The given listing mode (short, long, verbose, mbox). */
123 enum ls_listing_mode mode;
124 /** The arguments passed to the ls command. */
125 char **patterns;
126 /** Number of non-option arguments. */
127 int num_patterns;
128 /** Used for long listing mode to align the output fields. */
129 struct ls_widths widths;
130 /** Size of the \a data array. */
131 uint32_t array_size;
132 /** Number of used entries in the data array. */
133 uint32_t num_matching_paths;
134 /** Array of matching entries. */
135 struct ls_data *data;
136 /** Used to sort the array. */
137 struct ls_data **data_ptr;
138 };
139
140 /**
141 * Describes the layout of the mmapped-afs info struct.
142 *
143 * \sa struct afs_info.
144 */
145 enum afsi_offsets {
146 /** Where .last_played is stored. */
147 AFSI_LAST_PLAYED_OFFSET = 0,
148 /** Storage position of the attributes bitmap. */
149 AFSI_ATTRIBUTES_OFFSET = 8,
150 /** Storage position of the .num_played field. */
151 AFSI_NUM_PLAYED_OFFSET = 16,
152 /** Storage position of the .image_id field. */
153 AFSI_IMAGE_ID_OFFSET = 20,
154 /** Storage position of the .lyrics_id field. */
155 AFSI_LYRICS_ID_OFFSET = 24,
156 /** Storage position of the .audio_format_id field. */
157 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
158 /** Storage position of the amplification field. */
159 AFSI_AMP_OFFSET = 29,
160 /** 2 bytes reserved space for future usage. */
161 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
162 /** On-disk storage space needed. */
163 AFSI_SIZE = 32
164 };
165
166 /**
167 * Convert a struct afs_info to an osl object.
168 *
169 * \param afsi Pointer to the audio file info to be converted.
170 * \param obj Result pointer.
171 *
172 * \sa load_afsi().
173 */
174 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
175 {
176 char *buf = obj->data;
177
178 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
179 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
180 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
181 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
182 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
183 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
184 afsi->audio_format_id);
185 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
186 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
187 }
188
189 /**
190 * Get the audio file selector info struct stored in an osl object.
191 *
192 * \param afsi Points to the audio_file info structure to be filled in.
193 * \param obj The osl object holding the data.
194 *
195 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
196 *
197 * \sa save_afsi().
198 */
199 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
200 {
201 char *buf = obj->data;
202 if (obj->size < AFSI_SIZE)
203 return -E_BAD_AFSI;
204 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
205 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
206 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
207 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
208 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
209 afsi->audio_format_id = read_u8(buf +
210 AFSI_AUDIO_FORMAT_ID_OFFSET);
211 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
212 return 1;
213 }
214
215 /** The columns of the audio file table. */
216 enum audio_file_table_columns {
217 /** The hash on the content of the audio file. */
218 AFTCOL_HASH,
219 /** The full path in the filesystem. */
220 AFTCOL_PATH,
221 /** The audio file selector info. */
222 AFTCOL_AFSI,
223 /** The audio format handler info. */
224 AFTCOL_AFHI,
225 /** The chunk table info and the chunk table of the audio file. */
226 AFTCOL_CHUNKS,
227 /** The number of columns of this table. */
228 NUM_AFT_COLUMNS
229 };
230
231 /**
232 * Compare two osl objects pointing to hash values.
233 *
234 * \param obj1 Pointer to the first hash object.
235 * \param obj2 Pointer to the second hash object.
236 *
237 * \return The values required for an osl compare function.
238 *
239 * \sa osl_compare_func, uint32_compare().
240 */
241 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
242 {
243 return hash_compare((HASH_TYPE *)obj1->data, (HASH_TYPE *)obj2->data);
244 }
245
246 static struct osl_column_description aft_cols[] = {
247 [AFTCOL_HASH] = {
248 .storage_type = OSL_MAPPED_STORAGE,
249 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
250 .name = "hash",
251 .compare_function = aft_hash_compare,
252 .data_size = HASH_SIZE
253 },
254 [AFTCOL_PATH] = {
255 .storage_type = OSL_MAPPED_STORAGE,
256 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
257 .name = "path",
258 .compare_function = string_compare,
259 },
260 [AFTCOL_AFSI] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_FIXED_SIZE,
263 .name = "afs_info",
264 .data_size = AFSI_SIZE
265 },
266 [AFTCOL_AFHI] = {
267 .storage_type = OSL_MAPPED_STORAGE,
268 .name = "afh_info",
269 },
270 [AFTCOL_CHUNKS] = {
271 .storage_type = OSL_DISK_STORAGE,
272 .name = "chunks",
273 }
274 };
275
276 static struct osl_table_description audio_file_table_desc = {
277 .name = "audio_files",
278 .num_columns = NUM_AFT_COLUMNS,
279 .flags = OSL_LARGE_TABLE,
280 .column_descriptions = aft_cols
281 };
282
283 /* We don't want * dot or dot-dot anywhere. */
284 static int verify_dotfile(const char *rest)
285 {
286 /*
287 * The first character was '.', but that has already been discarded, we
288 * now test the rest.
289 */
290 switch (*rest) {
291 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
292 return -1;
293 case '.': /* path start with /foo/.. */
294 if (rest[1] == '\0' || rest[1] == '/')
295 return -1; /* /foo/.. or /foo/../bar are not ok */
296 /* /foo/..bar is ok */
297 }
298 return 1;
299 }
300
301 /*
302 * We fundamentally don't like some paths: We don't want double slashes or
303 * slashes at the end that can make pathnames ambiguous.
304 */
305 static int verify_path(const char *orig_path, char **resolved_path)
306 {
307 char c;
308 size_t len;
309 char *path;
310
311 if (*orig_path != '/') /* we only accept absolute paths */
312 return -E_BAD_PATH;
313 len = strlen(orig_path);
314 *resolved_path = para_strdup(orig_path);
315 path = *resolved_path;
316 while (len > 1 && path[--len] == '/')
317 path[len] = '\0'; /* remove slash at the end */
318 c = *path++;
319 while (c) {
320 if (c == '/') {
321 c = *path++;
322 switch (c) {
323 case '/': /* double slash */
324 goto bad_path;
325 case '.':
326 if (verify_dotfile(path) < 0)
327 goto bad_path;
328 default:
329 continue;
330 }
331 }
332 c = *path++;
333 }
334 return 1;
335 bad_path:
336 free(*resolved_path);
337 return -E_BAD_PATH;
338 }
339
340 /** The on-disk layout of a afhi struct. */
341 enum afhi_offsets {
342 /** Where the number of seconds is stored. */
343 AFHI_SECONDS_TOTAL_OFFSET = 0,
344 /** Position of the bitrate. */
345 AFHI_BITRATE_OFFSET = 4,
346 /** Position of the frequency. */
347 AFHI_FREQUENCY_OFFSET = 8,
348 /** Location of the audio file header. */
349 AFHI_HEADER_OFFSET_OFFSET = 12,
350 /* Length of the audio file header. Zero means: No header. */
351 AFHI_HEADER_LEN_OFFSET = 16,
352 /** The total number of chunks (4 bytes). */
353 CHUNKS_TOTAL_OFFSET = 20,
354 /** The length of the audio file header (4 bytes). */
355 HEADER_LEN_OFFSET = 24,
356 /** The start of the audio file header (4 bytes). */
357 HEADER_OFFSET_OFFSET = 28,
358 /** The seconds part of the chunk time (4 bytes). */
359 CHUNK_TV_TV_SEC_OFFSET = 32,
360 /** The microseconds part of the chunk time (4 bytes). */
361 CHUNK_TV_TV_USEC_OFFSET = 36,
362 /** Number of channels is stored here. (1 byte) */
363 AFHI_CHANNELS_OFFSET = 40,
364 /** The tag info position. */
365 AFHI_INFO_STRING_OFFSET = 41,
366 /** Minimal on-disk size of a valid afhi struct. */
367 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
368 };
369
370 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
371 {
372 if (!afhi)
373 return 0;
374 return MIN_AFHI_SIZE
375 + strlen(afhi->techinfo)
376 + strlen(afhi->tags.artist)
377 + strlen(afhi->tags.title)
378 + strlen(afhi->tags.year)
379 + strlen(afhi->tags.album)
380 + strlen(afhi->tags.comment);
381 }
382
383 static void save_afhi(struct afh_info *afhi, char *buf)
384 {
385 char *p;
386
387 if (!afhi)
388 return;
389 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
390 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
391 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
392 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
393 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
394 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
395 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
396 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
397 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
398 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
399 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
400 p = buf + AFHI_INFO_STRING_OFFSET;
401 /* The sprintf's below are OK as our caller made sure that buf is large enough */
402 p += sprintf(p, "%s", afhi->techinfo) + 1;
403 p += sprintf(p, "%s", afhi->tags.artist) + 1;
404 p += sprintf(p, "%s", afhi->tags.title) + 1;
405 p += sprintf(p, "%s", afhi->tags.year) + 1;
406 p += sprintf(p, "%s", afhi->tags.album) + 1;
407 sprintf(p, "%s", afhi->tags.comment);
408 }
409
410 static void load_afhi(const char *buf, struct afh_info *afhi)
411 {
412 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
413 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
414 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
415 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
416 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
417 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
418 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
419 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
420 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
421 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
422 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
423 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
424 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
425 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
426 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
427 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
428 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
429 }
430
431 static unsigned sizeof_chunk_table(struct afh_info *afhi)
432 {
433 if (!afhi)
434 return 0;
435 return 4 * (afhi->chunks_total + 1);
436 }
437
438 static void save_chunk_table(struct afh_info *afhi, char *buf)
439 {
440 int i;
441
442 for (i = 0; i <= afhi->chunks_total; i++)
443 write_u32(buf + 4 * i, afhi->chunk_table[i]);
444 }
445
446 static void load_chunk_table(struct afh_info *afhi, char *buf)
447 {
448 int i;
449
450 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
451 for (i = 0; i <= afhi->chunks_total; i++)
452 afhi->chunk_table[i] = read_u32(buf + 4 * i);
453 }
454
455 /**
456 * Get the row of the audio file table corresponding to the given path.
457 *
458 * \param path The full path of the audio file.
459 * \param row Result pointer.
460 *
461 * \return Standard.
462 */
463 int aft_get_row_of_path(const char *path, struct osl_row **row)
464 {
465 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
466
467 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
468 }
469
470 /**
471 * Get the row of the audio file table corresponding to the given hash value.
472 *
473 * \param hash The hash value of the desired audio file.
474 * \param row Result pointer.
475 *
476 * \return Standard.
477 */
478 static int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
479 {
480 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
481 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
482 }
483
484 /**
485 * Get the osl object holding the audio file selector info of a row.
486 *
487 * \param row Pointer to a row in the audio file table.
488 * \param obj Result pointer.
489 *
490 * \return Standard.
491 */
492 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
493 {
494 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
495 }
496
497 /**
498 * Get the osl object holding the audio file selector info, given a path.
499 *
500 *
501 * \param path The full path of the audio file.
502 * \param obj Result pointer.
503 *
504 * \return Positive on success, negative on errors.
505 */
506 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
507 {
508 struct osl_row *row;
509 int ret = aft_get_row_of_path(path, &row);
510 if (ret < 0)
511 return ret;
512 return get_afsi_object_of_row(row, obj);
513 }
514
515 /**
516 * Get the audio file selector info, given a row of the audio file table.
517 *
518 * \param row Pointer to a row in the audio file table.
519 * \param afsi Result pointer.
520 *
521 * \return Positive on success, negative on errors.
522 */
523 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
524 {
525 struct osl_object obj;
526 int ret = get_afsi_object_of_row(row, &obj);
527 if (ret < 0)
528 return ret;
529 return load_afsi(afsi, &obj);
530 }
531
532 /**
533 * Get the audio file selector info, given the path of an audio table.
534 *
535 * \param path The full path of the audio file.
536 * \param afsi Result pointer.
537 *
538 * \return Positive on success, negative on errors.
539 */
540 int get_afsi_of_path(const char *path, struct afs_info *afsi)
541 {
542 struct osl_object obj;
543 int ret = get_afsi_object_of_path(path, &obj);
544 if (ret < 0)
545 return ret;
546 return load_afsi(afsi, &obj);
547 }
548
549 /**
550 * Get the path of an audio file, given a row of the audio file table.
551 *
552 * \param row Pointer to a row in the audio file table.
553 * \param path Result pointer.
554 *
555 * The result is a pointer to mmapped data. The caller must not attempt
556 * to free it.
557 *
558 * \return Standard.
559 */
560 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
561 {
562 struct osl_object path_obj;
563 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
564 &path_obj));
565 if (ret < 0)
566 return ret;
567 *path = path_obj.data;
568 return 1;
569 }
570
571 /**
572 * Get the object containing the hash value of an audio file, given a row.
573 *
574 * \param row Pointer to a row of the audio file table.
575 * \param obj Result pointer.
576 *
577 * \return The return value of the underlying call to osl_get_object().
578 *
579 * \sa get_hash_of_row().
580 */
581 static int get_hash_object_of_aft_row(const struct osl_row *row,
582 struct osl_object *obj)
583 {
584 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
585 }
586
587 /**
588 * Get the hash value of an audio file, given a row of the audio file table.
589 *
590 * \param row Pointer to a row of the audio file table.
591 * \param hash Result pointer.
592 *
593 * \a hash points to mapped data and must not be freed by the caller.
594 *
595 * \return The return value of the underlying call to
596 * get_hash_object_of_aft_row().
597 */
598 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
599 {
600 struct osl_object obj;
601 int ret = get_hash_object_of_aft_row(row, &obj);
602
603 if (ret < 0)
604 return ret;
605 *hash = obj.data;
606 return 1;
607 }
608
609 /**
610 * Get the audio format handler info, given a row of the audio file table.
611 *
612 * \param row Pointer to a row of the audio file table.
613 * \param afhi Result pointer.
614 *
615 * \return The return value of the underlying call to osl_get_object().
616 *
617 * \sa get_chunk_table_of_row().
618 */
619 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
620 {
621 struct osl_object obj;
622 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
623 &obj));
624 if (ret < 0)
625 return ret;
626 load_afhi(obj.data, afhi);
627 return 1;
628 }
629
630 /* returns shmid on success */
631 static int save_afd(struct audio_file_data *afd)
632 {
633 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
634 int shmid, ret = shm_new(size);
635 void *shm_afd;
636 char *buf;
637
638 if (ret < 0)
639 return ret;
640 shmid = ret;
641 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
642 if (ret < 0)
643 goto err;
644 *(struct audio_file_data *)shm_afd = *afd;
645 buf = shm_afd;
646 buf += sizeof(*afd);
647 save_chunk_table(&afd->afhi, buf);
648 shm_detach(shm_afd);
649 return shmid;
650 err:
651 shm_destroy(shmid);
652 return ret;
653 }
654
655 /**
656 * Extract a afd stored in a shared memory area.
657 *
658 * Attach the shared memory area given by \a shmid, load the audio file data
659 * stored therein and detach the area afterwards. Called by vss, after
660 * receiving a positive response to the request for the next audio file.
661 +
662 * \param shmid The identifier of the shared memory area containing the afd.
663 * \param afd Result pointer.
664 *
665 * \return Standard.
666 */
667 int load_afd(int shmid, struct audio_file_data *afd)
668 {
669 void *shm_afd;
670 char *buf;
671 int ret;
672
673 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
674 if (ret < 0)
675 return ret;
676 *afd = *(struct audio_file_data *)shm_afd;
677 buf = shm_afd;
678 buf += sizeof(*afd);
679 load_chunk_table(&afd->afhi, buf);
680 shm_detach(shm_afd);
681 return 1;
682 }
683
684 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
685 time_t current_time, enum ls_listing_mode lm)
686 {
687 struct tm t;
688
689 if (!localtime_r((time_t *)seconds, &t))
690 return -E_LOCALTIME;
691 if (lm == LS_MODE_MBOX) {
692 if (!strftime(buf, size, "%c", &t))
693 return -E_STRFTIME;
694 return 1;
695 }
696 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
697 if (!strftime(buf, size, "%b %e %k:%M", &t))
698 return -E_STRFTIME;
699 return 1;
700 }
701 if (!strftime(buf, size, "%b %e %Y", &t))
702 return -E_STRFTIME;
703 return 1;
704 }
705
706 /** Compute the number of (decimal) digits of a number. */
707 #define GET_NUM_DIGITS(x, num) { \
708 typeof((x)) _tmp = PARA_ABS(x); \
709 *num = 1; \
710 if ((_tmp)) \
711 while ((_tmp) > 9) { \
712 (_tmp) /= 10; \
713 (*num)++; \
714 } \
715 }
716
717 static short unsigned get_duration_width(int seconds)
718 {
719 short unsigned width;
720 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
721
722 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
723 return 4 + (mins > 9);
724 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
725 GET_NUM_DIGITS(hours, &width);
726 return width + 6;
727 }
728
729 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
730 {
731 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
732 short unsigned max_width;
733
734 if (!hours) { /* m:ss or mm:ss */
735 max_width = opts->mode == LS_MODE_LONG?
736 opts->widths.duration_width : 4;
737 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
738 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
739 max_width = opts->mode == LS_MODE_LONG?
740 opts->widths.duration_width : 7;
741 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
742 seconds % 60);
743 }
744 }
745
746
747 static int write_attribute_items(struct para_buffer *b,
748 const char *att_bitmap, struct afs_info *afsi)
749 {
750 char *att_text;
751 int ret;
752
753 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
754 if (ret < 0)
755 return ret;
756 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
757 if (ret < 0)
758 return ret;
759 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
760 free(att_text);
761 return ret;
762 }
763
764 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
765 {
766 char *lyrics_name;
767 int ret;
768
769 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
770 if (ret < 0)
771 return ret;
772 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
773 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
774 lyrics_name : "(none)");
775 }
776
777 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
778 {
779 char *image_name;
780 int ret;
781
782 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
783 if (ret < 0)
784 return ret;
785 img_get_name_by_id(afsi->image_id, &image_name);
786 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
787 image_name : "(none)");
788 }
789
790 static int write_filename_items(struct para_buffer *b, const char *path,
791 unsigned flags)
792 {
793 char *val;
794 int ret;
795
796 if (!(flags & LS_FLAG_FULL_PATH))
797 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
798 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
799 if (ret < 0)
800 return ret;
801 val = para_basename(path);
802 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
803 if (ret < 0)
804 return ret;
805 val = para_dirname(path);
806 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
807 free(val);
808 return ret;
809 }
810
811 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
812 {
813 struct osl_object chunk_table_obj;
814 struct osl_row *aft_row;
815 int ret, i;
816 char *buf;
817
818 ret = aft_get_row_of_hash(d->hash, &aft_row);
819 if (ret < 0)
820 return ret;
821 ret = osl_open_disk_object(audio_file_table, aft_row,
822 AFTCOL_CHUNKS, &chunk_table_obj);
823 if (ret < 0)
824 return ret;
825 ret = para_printf(b, "%s\n"
826 "chunk_time: %lu:%lu\nchunk_offsets: ",
827 d->path,
828 (long unsigned) d->afhi.chunk_tv.tv_sec,
829 (long unsigned) d->afhi.chunk_tv.tv_usec
830 );
831 if (ret < 0)
832 goto out;
833 buf = chunk_table_obj.data;
834 for (i = 0; i <= d->afhi.chunks_total; i++) {
835 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
836 if (ret < 0)
837 goto out;
838 }
839 ret = para_printf(b, "\n");
840 out:
841 osl_close_disk_object(&chunk_table_obj);
842 return ret;
843 }
844
845 static int write_score(struct para_buffer *b, struct ls_data *d,
846 struct ls_options *opts)
847 {
848 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
849 return 0;
850 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
851 }
852
853 static int print_list_item(struct ls_data *d, struct ls_options *opts,
854 struct para_buffer *b, time_t current_time)
855 {
856 int ret;
857 char att_buf[65];
858 char last_played_time[30];
859 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
860 struct afs_info *afsi = &d->afsi;
861 struct afh_info *afhi = &d->afhi;
862 char asc_hash[2 * HASH_SIZE + 1];
863
864 if (opts->mode == LS_MODE_SHORT) {
865 ret = para_printf(b, "%s\n", d->path);
866 goto out;
867 }
868 if (opts->mode == LS_MODE_CHUNKS) {
869 ret = print_chunk_table(d, b);
870 goto out;
871 }
872 get_attribute_bitmap(&afsi->attributes, att_buf);
873 if (opts->flags & LS_FLAG_UNIXDATE)
874 sprintf(last_played_time, "%llu",
875 (long long unsigned)afsi->last_played);
876 else {
877 ret = get_local_time(&afsi->last_played, last_played_time,
878 sizeof(last_played_time), current_time, opts->mode);
879 if (ret < 0)
880 goto out;
881 }
882 get_duration_buf(afhi->seconds_total, duration_buf, opts);
883 if (opts->mode == LS_MODE_LONG) {
884 struct ls_widths *w = &opts->widths;
885 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
886 ret = para_printf(b, "%*li ",
887 opts->widths.score_width, d->score);
888 if (ret < 0)
889 goto out;
890 }
891 ret = para_printf(b,
892 "%s " /* attributes */
893 "%*u " /* amp */
894 "%*d " /* image_id */
895 "%*d " /* lyrics_id */
896 "%*d " /* bitrate */
897 "%s " /* audio format */
898 "%*d " /* frequency */
899 "%d " /* channels */
900 "%s " /* duration */
901 "%*d " /* num_played */
902 "%s " /* last_played */
903 "%s\n", /* path */
904 att_buf,
905 w->amp_width, afsi->amp,
906 w->image_id_width, afsi->image_id,
907 w->lyrics_id_width, afsi->lyrics_id,
908 w->bitrate_width, afhi->bitrate,
909 audio_format_name(afsi->audio_format_id),
910 w->frequency_width, afhi->frequency,
911 afhi->channels,
912 duration_buf,
913 w->num_played_width, afsi->num_played,
914 last_played_time,
915 d->path
916 );
917 goto out;
918 }
919 if (opts->mode == LS_MODE_MBOX) {
920 const char *bn = para_basename(d->path);
921 ret = para_printf(b,
922 "From foo@localhost %s\n"
923 "Received: from\nTo: bar\nFrom: a\n"
924 "Subject: %s\n\n",
925 last_played_time,
926 bn? bn : "?");
927 if (ret < 0)
928 goto out;
929 }
930 ret = write_filename_items(b, d->path, opts->flags);
931 if (ret < 0)
932 goto out;
933 ret = write_score(b, d, opts);
934 if (ret < 0)
935 goto out;
936 ret = write_attribute_items(b, att_buf, afsi);
937 if (ret < 0)
938 goto out;
939 ret = write_image_items(b, afsi);
940 if (ret < 0)
941 goto out;
942 ret = write_lyrics_items(b, afsi);
943 if (ret < 0)
944 goto out;
945 hash_to_asc(d->hash, asc_hash);
946 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
947 if (ret < 0)
948 goto out;
949 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
950 if (ret < 0)
951 goto out;
952 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
953 audio_format_name(afsi->audio_format_id));
954 if (ret < 0)
955 goto out;
956 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
957 if (ret < 0)
958 goto out;
959 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
960 if (ret < 0)
961 goto out;
962 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
963 if (ret < 0)
964 goto out;
965 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
966 afhi->seconds_total);
967 if (ret < 0)
968 goto out;
969 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
970 if (ret < 0)
971 goto out;
972 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
973 if (ret < 0)
974 goto out;
975 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
979 tv2ms(&afhi->chunk_tv));
980 if (ret < 0)
981 goto out;
982 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
983 afhi->chunks_total);
984 if (ret < 0)
985 goto out;
986 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
987 if (ret < 0)
988 goto out;
989 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
990 if (ret < 0)
991 goto out;
992 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
993 if (ret < 0)
994 goto out;
995 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
996 if (ret < 0)
997 goto out;
998 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
999 if (ret < 0)
1000 goto out;
1001 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1002 if (ret < 0)
1003 goto out;
1004 if (opts->mode == LS_MODE_MBOX) {
1005 struct osl_object lyrics_def;
1006 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1007 if (lyrics_def.data) {
1008 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1009 (char *)lyrics_def.data);
1010 osl_close_disk_object(&lyrics_def);
1011 }
1012 }
1013 out:
1014 return ret;
1015 }
1016
1017 static int make_status_items(struct audio_file_data *afd,
1018 struct afs_info *afsi, char *path, long score,
1019 HASH_TYPE *hash)
1020 {
1021 struct ls_data d = {
1022 .afhi = afd->afhi,
1023 .afsi = *afsi,
1024 .path = path,
1025 .score = score,
1026 .hash = hash
1027 };
1028 struct ls_options opts = {
1029 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1030 .mode = LS_MODE_VERBOSE,
1031 };
1032 struct para_buffer pb = {.max_size = SHMMAX - 1};
1033 time_t current_time;
1034 int ret;
1035
1036 time(&current_time);
1037 ret = print_list_item(&d, &opts, &pb, current_time);
1038 if (ret < 0)
1039 return ret;
1040 free(status_items);
1041 status_items = pb.buf;
1042 memset(&pb, 0, sizeof(pb));
1043 pb.max_size = SHMMAX - 1;
1044 pb.flags = PBF_SIZE_PREFIX;
1045 ret = print_list_item(&d, &opts, &pb, current_time);
1046 if (ret < 0) {
1047 free(status_items);
1048 status_items = NULL;
1049 return ret;
1050 }
1051 free(parser_friendly_status_items);
1052 parser_friendly_status_items = pb.buf;
1053 return 1;
1054 }
1055
1056 /**
1057 * Mmap the given audio file and update statistics.
1058 *
1059 * \param aft_row Determines the audio file to be opened and updated.
1060 * \param score The score of the audio file.
1061 * \param afd Result pointer.
1062 *
1063 * On success, the numplayed field of the audio file selector info is increased
1064 * and the lastplayed time is set to the current time. Finally, the score of
1065 * the audio file is updated.
1066 *
1067 * \return Positive shmid on success, negative on errors.
1068 */
1069 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1070 struct audio_file_data *afd)
1071 {
1072 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1073 struct osl_object afsi_obj;
1074 struct afs_info old_afsi, new_afsi;
1075 int ret = get_hash_of_row(aft_row, &aft_hash);
1076 struct afsi_change_event_data aced;
1077 struct osl_object map, chunk_table_obj;
1078 char *path;
1079
1080 if (ret < 0)
1081 return ret;
1082 ret = get_audio_file_path_of_row(aft_row, &path);
1083 if (ret < 0)
1084 return ret;
1085 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1086 if (ret < 0)
1087 return ret;
1088 ret = load_afsi(&old_afsi, &afsi_obj);
1089 if (ret < 0)
1090 return ret;
1091 ret = get_afhi_of_row(aft_row, &afd->afhi);
1092 if (ret < 0)
1093 return ret;
1094 afd->afhi.chunk_table = NULL;
1095 ret = osl_open_disk_object(audio_file_table, aft_row,
1096 AFTCOL_CHUNKS, &chunk_table_obj);
1097 if (ret < 0)
1098 goto err;
1099 ret = mmap_full_file(path, O_RDONLY, &map.data,
1100 &map.size, &afd->fd);
1101 if (ret < 0)
1102 goto err;
1103 hash_function(map.data, map.size, file_hash);
1104 ret = hash_compare(file_hash, aft_hash);
1105 para_munmap(map.data, map.size);
1106 if (ret) {
1107 ret = -E_HASH_MISMATCH;
1108 goto err;
1109 }
1110 new_afsi = old_afsi;
1111 new_afsi.num_played++;
1112 new_afsi.last_played = time(NULL);
1113 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1114
1115 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1116 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1117 if (ret < 0)
1118 goto err;
1119 aced.aft_row = aft_row;
1120 aced.old_afsi = &old_afsi;
1121 afs_event(AFSI_CHANGE, NULL, &aced);
1122 ret = save_afd(afd);
1123 err:
1124 free(afd->afhi.chunk_table);
1125 osl_close_disk_object(&chunk_table_obj);
1126 return ret;
1127 }
1128
1129 static int ls_audio_format_compare(const void *a, const void *b)
1130 {
1131 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1132 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1133 }
1134
1135 static int ls_duration_compare(const void *a, const void *b)
1136 {
1137 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1138 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1139 }
1140
1141 static int ls_bitrate_compare(const void *a, const void *b)
1142 {
1143 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1144 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1145 }
1146
1147 static int ls_lyrics_id_compare(const void *a, const void *b)
1148 {
1149 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1150 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1151 }
1152
1153 static int ls_image_id_compare(const void *a, const void *b)
1154 {
1155 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1156 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1157 }
1158
1159 static int ls_channels_compare(const void *a, const void *b)
1160 {
1161 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1162 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1163 }
1164
1165 static int ls_frequency_compare(const void *a, const void *b)
1166 {
1167 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1168 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1169 }
1170
1171 static int ls_num_played_compare(const void *a, const void *b)
1172 {
1173 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1174 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1175 }
1176
1177 static int ls_last_played_compare(const void *a, const void *b)
1178 {
1179 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1180 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1181 }
1182
1183 static int ls_score_compare(const void *a, const void *b)
1184 {
1185 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1186 return NUM_COMPARE(d1->score, d2->score);
1187 }
1188
1189 static int ls_path_compare(const void *a, const void *b)
1190 {
1191 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1192 return strcmp(d1->path, d2->path);
1193 }
1194
1195 static int sort_matching_paths(struct ls_options *options)
1196 {
1197 size_t nmemb = options->num_matching_paths;
1198 size_t size = sizeof(*options->data_ptr);
1199 int (*compar)(const void *, const void *);
1200 int i;
1201
1202 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1203 for (i = 0; i < nmemb; i++)
1204 options->data_ptr[i] = options->data + i;
1205
1206 /* In these cases the array is already sorted */
1207 if (options->sorting == LS_SORT_BY_PATH
1208 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1209 && (options->flags & LS_FLAG_FULL_PATH))
1210 return 1;
1211 if (options->sorting == LS_SORT_BY_SCORE &&
1212 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1213 return 1;
1214
1215 switch (options->sorting) {
1216 case LS_SORT_BY_PATH:
1217 compar = ls_path_compare; break;
1218 case LS_SORT_BY_SCORE:
1219 compar = ls_score_compare; break;
1220 case LS_SORT_BY_LAST_PLAYED:
1221 compar = ls_last_played_compare; break;
1222 case LS_SORT_BY_NUM_PLAYED:
1223 compar = ls_num_played_compare; break;
1224 case LS_SORT_BY_FREQUENCY:
1225 compar = ls_frequency_compare; break;
1226 case LS_SORT_BY_CHANNELS:
1227 compar = ls_channels_compare; break;
1228 case LS_SORT_BY_IMAGE_ID:
1229 compar = ls_image_id_compare; break;
1230 case LS_SORT_BY_LYRICS_ID:
1231 compar = ls_lyrics_id_compare; break;
1232 case LS_SORT_BY_BITRATE:
1233 compar = ls_bitrate_compare; break;
1234 case LS_SORT_BY_DURATION:
1235 compar = ls_duration_compare; break;
1236 case LS_SORT_BY_AUDIO_FORMAT:
1237 compar = ls_audio_format_compare; break;
1238 default:
1239 return -E_BAD_SORT;
1240 }
1241 qsort(options->data_ptr, nmemb, size, compar);
1242 return 1;
1243 }
1244
1245 /* row is either an aft_row or a row of the score table */
1246 /* TODO: Only compute widths if we need them */
1247 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1248 {
1249 int ret, i;
1250 struct ls_options *options = ls_opts;
1251 struct ls_data *d;
1252 struct ls_widths *w;
1253 unsigned short num_digits;
1254 unsigned tmp;
1255 struct osl_row *aft_row;
1256 long score;
1257 char *path;
1258
1259 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1260 ret = get_score_and_aft_row(row, &score, &aft_row);
1261 if (ret < 0)
1262 return ret;
1263 } else
1264 aft_row = row;
1265 ret = get_audio_file_path_of_row(aft_row, &path);
1266 if (ret < 0)
1267 return ret;
1268 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1269 char *p = strrchr(path, '/');
1270 if (p)
1271 path = p + 1;
1272 }
1273 if (options->num_patterns) {
1274 for (i = 0; i < options->num_patterns; i++) {
1275 ret = fnmatch(options->patterns[i], path, 0);
1276 if (!ret)
1277 break;
1278 if (ret == FNM_NOMATCH)
1279 continue;
1280 return -E_FNMATCH;
1281 }
1282 if (i >= options->num_patterns) /* no match */
1283 return 1;
1284 }
1285 tmp = options->num_matching_paths++;
1286 if (options->num_matching_paths > options->array_size) {
1287 options->array_size++;
1288 options->array_size *= 2;
1289 options->data = para_realloc(options->data, options->array_size
1290 * sizeof(*options->data));
1291 }
1292 d = options->data + tmp;
1293 ret = get_afsi_of_row(aft_row, &d->afsi);
1294 if (ret < 0)
1295 return ret;
1296 ret = get_afhi_of_row(aft_row, &d->afhi);
1297 if (ret < 0)
1298 return ret;
1299 d->path = path;
1300 ret = get_hash_of_row(aft_row, &d->hash);
1301 if (ret < 0)
1302 goto err;
1303 w = &options->widths;
1304 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1305 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1306 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1307 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1308 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1309 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1310 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1311 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1312 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1313 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1314 /* get the number of chars to print this amount of time */
1315 num_digits = get_duration_width(d->afhi.seconds_total);
1316 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1317 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1318 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1319 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1320 GET_NUM_DIGITS(score, &num_digits);
1321 num_digits++; /* add one for the sign (space or "-") */
1322 w->score_width = PARA_MAX(w->score_width, num_digits);
1323 d->score = score;
1324 }
1325 return 1;
1326 err:
1327 return ret;
1328 }
1329
1330 static void com_ls_callback(int fd, const struct osl_object *query)
1331 {
1332 struct ls_options *opts = query->data;
1333 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1334 struct para_buffer b = {.max_size = SHMMAX,
1335 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1336 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1337 int i = 0, ret;
1338 time_t current_time;
1339
1340 if (opts->num_patterns) {
1341 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1342 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1343 opts->patterns[i] = p;
1344 p += strlen(p) + 1;
1345 }
1346 } else
1347 opts->patterns = NULL;
1348 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1349 ret = admissible_file_loop(opts, prepare_ls_row);
1350 else
1351 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1352 prepare_ls_row));
1353 if (ret < 0)
1354 goto out;
1355 if (!opts->num_matching_paths)
1356 goto out;
1357 ret = sort_matching_paths(opts);
1358 if (ret < 0)
1359 goto out;
1360 time(&current_time);
1361 if (opts->flags & LS_FLAG_REVERSE)
1362 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1363 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1364 if (ret < 0)
1365 goto out;
1366 }
1367 else
1368 for (i = 0; i < opts->num_matching_paths; i++) {
1369 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1370 if (ret < 0)
1371 goto out;
1372 }
1373 out:
1374 if (b.offset)
1375 pass_buffer_as_shm(b.buf, b.offset, &fd);
1376 free(b.buf);
1377 free(opts->data);
1378 free(opts->data_ptr);
1379 free(opts->patterns);
1380 }
1381
1382 /*
1383 * TODO: flags -h (sort by hash)
1384 */
1385 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1386 {
1387 int i, ret;
1388 unsigned flags = 0;
1389 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1390 enum ls_listing_mode mode = LS_MODE_SHORT;
1391 struct ls_options opts = {.patterns = NULL};
1392 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1393
1394 for (i = 1; i < argc; i++) {
1395 const char *arg = argv[i];
1396 if (arg[0] != '-')
1397 break;
1398 if (!strcmp(arg, "--")) {
1399 i++;
1400 break;
1401 }
1402 if (!strncmp(arg, "-l", 2)) {
1403 if (!*(arg + 2)) {
1404 mode = LS_MODE_LONG;
1405 continue;
1406 }
1407 if (*(arg + 3))
1408 return -E_AFT_SYNTAX;
1409 switch(*(arg + 2)) {
1410 case 's':
1411 mode = LS_MODE_SHORT;
1412 continue;
1413 case 'l':
1414 mode = LS_MODE_LONG;
1415 continue;
1416 case 'v':
1417 mode = LS_MODE_VERBOSE;
1418 continue;
1419 case 'm':
1420 mode = LS_MODE_MBOX;
1421 continue;
1422 case 'c':
1423 mode = LS_MODE_CHUNKS;
1424 continue;
1425 case 'p':
1426 mode = LS_MODE_PARSER;
1427 continue;
1428 default:
1429 return -E_AFT_SYNTAX;
1430 }
1431 }
1432 if (!strcmp(arg, "-p")) {
1433 flags |= LS_FLAG_FULL_PATH;
1434 continue;
1435 }
1436 if (!strcmp(arg, "-a")) {
1437 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1438 continue;
1439 }
1440 if (!strcmp(arg, "-r")) {
1441 flags |= LS_FLAG_REVERSE;
1442 continue;
1443 }
1444 if (!strcmp(arg, "-d")) {
1445 flags |= LS_FLAG_UNIXDATE;
1446 continue;
1447 }
1448 if (!strncmp(arg, "-s", 2)) {
1449 if (!*(arg + 2) || *(arg + 3))
1450 return -E_AFT_SYNTAX;
1451 switch(*(arg + 2)) {
1452 case 'p':
1453 sort = LS_SORT_BY_PATH;
1454 continue;
1455 case 's': /* -ss implies -a */
1456 sort = LS_SORT_BY_SCORE;
1457 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1458 continue;
1459 case 'l':
1460 sort = LS_SORT_BY_LAST_PLAYED;
1461 continue;
1462 case 'n':
1463 sort = LS_SORT_BY_NUM_PLAYED;
1464 continue;
1465 case 'f':
1466 sort = LS_SORT_BY_FREQUENCY;
1467 continue;
1468 case 'c':
1469 sort = LS_SORT_BY_CHANNELS;
1470 continue;
1471 case 'i':
1472 sort = LS_SORT_BY_IMAGE_ID;
1473 continue;
1474 case 'y':
1475 sort = LS_SORT_BY_LYRICS_ID;
1476 continue;
1477 case 'b':
1478 sort = LS_SORT_BY_BITRATE;
1479 continue;
1480 case 'd':
1481 sort = LS_SORT_BY_DURATION;
1482 continue;
1483 case 'a':
1484 sort = LS_SORT_BY_AUDIO_FORMAT;
1485 continue;
1486 default:
1487 return -E_AFT_SYNTAX;
1488 }
1489 }
1490 return -E_AFT_SYNTAX;
1491 }
1492 opts.flags = flags;
1493 opts.sorting = sort;
1494 opts.mode = mode;
1495 opts.num_patterns = argc - i;
1496 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1497 argv + i, com_ls_callback, rc4_send_result, rc4c);
1498 return ret;
1499 }
1500
1501 /**
1502 * Call the given function for each file in the audio file table.
1503 *
1504 * \param private_data An arbitrary data pointer, passed to \a func.
1505 * \param func The custom function to be called.
1506 *
1507 * \return Standard.
1508 */
1509 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1510 {
1511 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1512 func));
1513 }
1514
1515 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1516 {
1517 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1518 struct osl_row *row;
1519
1520 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1521 return row;
1522 }
1523
1524 /** The format of the data stored by save_audio_file_data(). */
1525 enum com_add_buffer_offsets {
1526 /** afhi (if present) starts here. */
1527 CAB_AFHI_OFFSET_POS = 0,
1528 /** Start of the chunk table (if present). */
1529 CAB_CHUNKS_OFFSET_POS = 2,
1530 /** Audio format id. */
1531 CAB_AUDIO_FORMAT_OFFSET = 4,
1532 /** Flags given to the add command. */
1533 CAB_FLAGS_OFFSET = 5,
1534 /** The hash of the audio file being added. */
1535 CAB_HASH_OFFSET = 9,
1536 /** Start of the path of the audio file. */
1537 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1538 };
1539
1540 /*
1541 * Store the given data to a single buffer. Doesn't need the audio file selector
1542 * info struct as the server knows it as well.
1543 *
1544 * It's OK to call this with afhi == NULL. In this case, the audio format
1545 * handler info won't be stored in the buffer.
1546 */
1547 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1548 struct afh_info *afhi, uint32_t flags,
1549 uint8_t audio_format_num, struct osl_object *obj)
1550 {
1551 size_t path_len = strlen(path) + 1;
1552 size_t afhi_size = sizeof_afhi_buf(afhi);
1553 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1554 + sizeof_chunk_table(afhi);
1555 char *buf = para_malloc(size);
1556 uint16_t pos;
1557
1558 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1559 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1560
1561 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1562 strcpy(buf + CAB_PATH_OFFSET, path);
1563
1564 pos = CAB_PATH_OFFSET + path_len;
1565 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1566 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1567 pos + afhi_size - 1);
1568 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1569 save_afhi(afhi, buf + pos);
1570
1571 pos += afhi_size;
1572 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1573 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1574 if (afhi)
1575 save_chunk_table(afhi, buf + pos);
1576 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1577 obj->data = buf;
1578 obj->size = size;
1579 }
1580
1581 /*
1582
1583 Overview of the add command.
1584
1585 Input: What was passed to the callback by the command handler.
1586 ~~~~~~
1587 HS: Hash sister. Whether an audio file with identical hash
1588 already exists in the osl database.
1589
1590 PB: Path brother. Whether a file with the given path exists
1591 in the table.
1592
1593 F: Force flag given. Whether add was called with -f.
1594
1595 output: Action performed by the callback.
1596 ~~~~~~~
1597 AFHI: Whether afhi and chunk table are computed and sent.
1598 ACTION: Table modifications to be done by the callback.
1599
1600 +----+----+---+------+---------------------------------------------------+
1601 | HS | PB | F | AFHI | ACTION
1602 +----+----+---+------+---------------------------------------------------+
1603 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1604 | | update path, keep afsi
1605 +----+----+---+------+---------------------------------------------------+
1606 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1607 | | otherwise: remove PB, HS: update path, keep afhi,
1608 | | afsi.
1609 +----+----+---+------+---------------------------------------------------+
1610 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1611 | | HS, keep afsi
1612 +----+----+---+------+---------------------------------------------------+
1613 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1614 +----+----+---+------+---------------------------------------------------+
1615 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1616 | | (force has no effect)
1617 +----+----+---+------+---------------------------------------------------+
1618 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1619 +----+----+---+------+---------------------------------------------------+
1620 | N | N | Y | Y | (new file) create new entry (force has no effect)
1621 +----+----+---+------+---------------------------------------------------+
1622 | N | N | N | Y | (new file) create new entry
1623 +----+----+---+------+---------------------------------------------------+
1624
1625 Notes:
1626
1627 afhi <=> force or no HS
1628 F => AFHI
1629
1630 */
1631
1632 /** Flags passed to the add command. */
1633 enum com_add_flags {
1634 /** Skip paths that exist already. */
1635 ADD_FLAG_LAZY = 1,
1636 /** Force adding. */
1637 ADD_FLAG_FORCE = 2,
1638 /** Print what is being done. */
1639 ADD_FLAG_VERBOSE = 4,
1640 /** Try to add files with unknown suffixes. */
1641 ADD_FLAG_ALL = 8,
1642 };
1643
1644 static void com_add_callback(int fd, const struct osl_object *query)
1645 {
1646 char *buf = query->data, *path;
1647 struct osl_row *pb, *aft_row;
1648 struct osl_row *hs;
1649 struct osl_object objs[NUM_AFT_COLUMNS];
1650 HASH_TYPE *hash;
1651 char asc[2 * HASH_SIZE + 1];
1652 int ret;
1653 char afsi_buf[AFSI_SIZE];
1654 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1655 struct afs_info default_afsi = {.last_played = 0};
1656 struct para_buffer msg = {.max_size = SHMMAX,
1657 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1658 uint16_t afhi_offset, chunks_offset;
1659
1660 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1661 hash_to_asc(hash, asc);;
1662 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1663 objs[AFTCOL_HASH].size = HASH_SIZE;
1664
1665 path = buf + CAB_PATH_OFFSET;
1666 objs[AFTCOL_PATH].data = path;
1667 objs[AFTCOL_PATH].size = strlen(path) + 1;
1668
1669 PARA_INFO_LOG("request to add %s\n", path);
1670 hs = find_hash_sister(hash);
1671 ret = aft_get_row_of_path(path, &pb);
1672 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1673 goto out;
1674 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1675 if (flags & ADD_FLAG_VERBOSE)
1676 ret = para_printf(&msg, "ignoring duplicate\n");
1677 else
1678 ret = 1;
1679 goto out;
1680 }
1681 if (hs && hs != pb) {
1682 struct osl_object obj;
1683 if (pb) { /* hs trumps pb, remove pb */
1684 if (flags & ADD_FLAG_VERBOSE) {
1685 ret = para_printf(&msg, "removing path brother\n");
1686 if (ret < 0)
1687 goto out;
1688 }
1689 ret = osl(osl_del_row(audio_file_table, pb));
1690 if (ret < 0)
1691 goto out;
1692 pb = NULL;
1693 }
1694 /* file rename, update hs' path */
1695 if (flags & ADD_FLAG_VERBOSE) {
1696 ret = osl(osl_get_object(audio_file_table, hs,
1697 AFTCOL_PATH, &obj));
1698 if (ret < 0)
1699 goto out;
1700 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1701 if (ret < 0)
1702 goto out;
1703 }
1704 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1705 &objs[AFTCOL_PATH]));
1706 if (ret < 0)
1707 goto out;
1708 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1709 if (!(flags & ADD_FLAG_FORCE))
1710 goto out;
1711 }
1712 /* no hs or force mode, child must have sent afhi */
1713 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1714 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1715
1716 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1717 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1718 ret = -E_NO_AFHI;
1719 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1720 goto out;
1721 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1722 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1723 if (pb && !hs) { /* update pb's hash */
1724 char old_asc[2 * HASH_SIZE + 1];
1725 HASH_TYPE *old_hash;
1726 ret = get_hash_of_row(pb, &old_hash);
1727 if (ret < 0)
1728 goto out;
1729 hash_to_asc(old_hash, old_asc);
1730 if (flags & ADD_FLAG_VERBOSE) {
1731 ret = para_printf(&msg, "file change: %s -> %s\n",
1732 old_asc, asc);
1733 if (ret < 0)
1734 goto out;
1735 }
1736 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1737 &objs[AFTCOL_HASH]);
1738 if (ret < 0)
1739 goto out;
1740 }
1741 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1742 struct osl_row *row = pb? pb : hs;
1743 /* update afhi and chunk_table */
1744 if (flags & ADD_FLAG_VERBOSE) {
1745 ret = para_printf(&msg, "updating afhi and chunk table\n");
1746 if (ret < 0)
1747 goto out;
1748 }
1749 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1750 &objs[AFTCOL_AFHI]));
1751 if (ret < 0)
1752 goto out;
1753 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1754 &objs[AFTCOL_CHUNKS]));
1755 if (ret < 0)
1756 goto out;
1757 afs_event(AFHI_CHANGE, &msg, row);
1758 goto out;
1759 }
1760 /* new entry, use default afsi */
1761 if (flags & ADD_FLAG_VERBOSE) {
1762 ret = para_printf(&msg, "new file\n");
1763 if (ret < 0)
1764 goto out;
1765 }
1766 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1767 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1768
1769 objs[AFTCOL_AFSI].data = &afsi_buf;
1770 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1771 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1772 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1773 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1774 out:
1775 if (ret < 0)
1776 para_printf(&msg, "%s\n", para_strerror(-ret));
1777 if (msg.offset)
1778 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1779 free(msg.buf);
1780 }
1781
1782 /** Used by com_add(). */
1783 struct private_add_data {
1784 /** The socket file descriptor, including rc4 keys. */
1785 struct rc4_context *rc4c;
1786 /** The given add flags. */
1787 uint32_t flags;
1788 };
1789
1790 static void path_brother_callback(int fd, const struct osl_object *query)
1791 {
1792 char *path = query->data;
1793 struct osl_row *path_brother;
1794 int ret = aft_get_row_of_path(path, &path_brother);
1795 if (ret < 0)
1796 return;
1797 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1798 }
1799
1800 static void hash_sister_callback(int fd, const struct osl_object *query)
1801 {
1802 HASH_TYPE *hash = query->data;
1803 struct osl_row *hash_sister;
1804
1805 hash_sister = find_hash_sister(hash);
1806 if (!hash_sister)
1807 return;
1808 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1809 }
1810
1811 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1812 {
1813 struct osl_row **row = private;
1814 *row = result->data;
1815 return 1;
1816 }
1817
1818 static int add_one_audio_file(const char *path, void *private_data)
1819 {
1820 int ret, send_ret = 1, fd;
1821 uint8_t format_num = -1;
1822 struct private_add_data *pad = private_data;
1823 struct afh_info afhi, *afhi_ptr = NULL;
1824 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1825 struct osl_object map, obj = {.data = NULL}, query;
1826 HASH_TYPE hash[HASH_SIZE];
1827
1828 ret = guess_audio_format(path);
1829 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1830 goto out_free;
1831 query.data = (char *)path;
1832 query.size = strlen(path) + 1;
1833 ret = send_callback_request(path_brother_callback, &query,
1834 get_row_pointer_from_result, &pb);
1835 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1836 goto out_free;
1837 ret = 1;
1838 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1839 if (pad->flags & ADD_FLAG_VERBOSE)
1840 send_ret = rc4_send_va_buffer(pad->rc4c,
1841 "lazy-ignore: %s\n", path);
1842 goto out_free;
1843 }
1844 /* We still want to add this file. Compute its hash. */
1845 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1846 if (ret < 0)
1847 goto out_free;
1848 hash_function(map.data, map.size, hash);
1849
1850 /* Check whether the database contains a file with the same hash. */
1851 query.data = hash;
1852 query.size = HASH_SIZE;
1853 ret = send_callback_request(hash_sister_callback, &query,
1854 get_row_pointer_from_result, &hs);
1855 if (ret < 0)
1856 goto out_unmap;
1857 /* Return success if we already know this file. */
1858 ret = 1;
1859 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1860 if (pad->flags & ADD_FLAG_VERBOSE)
1861 send_ret = rc4_send_va_buffer(pad->rc4c,
1862 "%s exists, not forcing update\n", path);
1863 goto out_unmap;
1864 }
1865 /*
1866 * We won't recalculate the audio format info and the chunk table if
1867 * there is a hash sister and FORCE was not given.
1868 */
1869 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1870 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1871 if (ret < 0)
1872 goto out_unmap;
1873 format_num = ret;
1874 afhi_ptr = &afhi;
1875 }
1876 munmap(map.data, map.size);
1877 close(fd);
1878 if (pad->flags & ADD_FLAG_VERBOSE) {
1879 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1880 if (send_ret < 0)
1881 goto out_free;
1882 }
1883 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1884 /* Ask afs to consider this entry for adding. */
1885 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1886 goto out_free;
1887
1888 out_unmap:
1889 close(fd);
1890 munmap(map.data, map.size);
1891 out_free:
1892 if (ret < 0 && send_ret >= 0)
1893 send_ret = rc4_send_va_buffer(pad->rc4c,
1894 "failed to add %s (%s)\n", path, para_strerror(-ret));
1895 free(obj.data);
1896 if (afhi_ptr) {
1897 free(afhi_ptr->chunk_table);
1898 free(afhi_ptr->techinfo);
1899 free(afhi_ptr->tags.artist);
1900 free(afhi_ptr->tags.title);
1901 free(afhi_ptr->tags.year);
1902 free(afhi_ptr->tags.album);
1903 free(afhi_ptr->tags.comment);
1904 }
1905 /* Stop adding files only on send errors. */
1906 return send_ret;
1907 }
1908
1909 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1910 {
1911 int i, ret;
1912 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1913 struct stat statbuf;
1914
1915 for (i = 1; i < argc; i++) {
1916 const char *arg = argv[i];
1917 if (arg[0] != '-')
1918 break;
1919 if (!strcmp(arg, "--")) {
1920 i++;
1921 break;
1922 }
1923 if (!strcmp(arg, "-a")) {
1924 pad.flags |= ADD_FLAG_ALL;
1925 continue;
1926 }
1927 if (!strcmp(arg, "-l")) {
1928 pad.flags |= ADD_FLAG_LAZY;
1929 continue;
1930 }
1931 if (!strcmp(arg, "-f")) {
1932 pad.flags |= ADD_FLAG_FORCE;
1933 continue;
1934 }
1935 if (!strcmp(arg, "-v")) {
1936 pad.flags |= ADD_FLAG_VERBOSE;
1937 continue;
1938 }
1939 }
1940 if (argc <= i)
1941 return -E_AFT_SYNTAX;
1942 for (; i < argc; i++) {
1943 char *path;
1944 ret = verify_path(argv[i], &path);
1945 if (ret < 0) {
1946 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1947 para_strerror(-ret));
1948 if (ret < 0)
1949 return ret;
1950 continue;
1951 }
1952 ret = stat(path, &statbuf);
1953 if (ret < 0) {
1954 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1955 strerror(errno));
1956 free(path);
1957 if (ret < 0)
1958 return ret;
1959 continue;
1960 }
1961 if (S_ISDIR(statbuf.st_mode))
1962 ret = for_each_file_in_dir(path, add_one_audio_file,
1963 &pad);
1964 else
1965 ret = add_one_audio_file(path, &pad);
1966 if (ret < 0) {
1967 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1968 free(path);
1969 return ret;
1970 }
1971 free(path);
1972 }
1973 return 1;
1974
1975 }
1976
1977 /**
1978 * Flags used by the touch command.
1979 *
1980 * \sa com_touch().
1981 */
1982 enum touch_flags {
1983 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1984 TOUCH_FLAG_FNM_PATHNAME = 1,
1985 /** Activates verbose mode. */
1986 TOUCH_FLAG_VERBOSE = 2
1987 };
1988
1989 /** Options used by com_touch(). */
1990 struct com_touch_options {
1991 /** New num_played value. */
1992 int32_t num_played;
1993 /** New last played count. */
1994 int64_t last_played;
1995 /** New lyrics id. */
1996 int32_t lyrics_id;
1997 /** New image id. */
1998 int32_t image_id;
1999 /** New amplification value. */
2000 int32_t amp;
2001 /** Command line flags (see \ref touch_flags). */
2002 unsigned flags;
2003 };
2004
2005 /** Data passed to the action handler of com_touch(). */
2006 struct touch_action_data {
2007 /** Command line options (see \ref com_touch_options). */
2008 struct com_touch_options *cto;
2009 /** Message buffer. */
2010 struct para_buffer pb;
2011 /** How many audio files matched the given pattern. */
2012 unsigned num_matches;
2013 };
2014
2015 static int touch_audio_file(__a_unused struct osl_table *table,
2016 struct osl_row *row, const char *name, void *data)
2017 {
2018 struct touch_action_data *tad = data;
2019 struct osl_object obj;
2020 struct afs_info old_afsi, new_afsi;
2021 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2022 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2023 struct afsi_change_event_data aced;
2024
2025 ret = get_afsi_object_of_row(row, &obj);
2026 if (ret < 0)
2027 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2028 ret = load_afsi(&old_afsi, &obj);
2029 if (ret < 0)
2030 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2031 new_afsi = old_afsi;
2032 if (no_options) {
2033 new_afsi.num_played++;
2034 new_afsi.last_played = time(NULL);
2035 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2036 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2037 "last_played = now()\n", name,
2038 new_afsi.num_played);
2039 if (ret < 0)
2040 return ret;
2041 }
2042 } else {
2043 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2044 ret = para_printf(&tad->pb, "touching %s\n", name);
2045 if (ret < 0)
2046 return ret;
2047 }
2048 if (tad->cto->lyrics_id >= 0)
2049 new_afsi.lyrics_id = tad->cto->lyrics_id;
2050 if (tad->cto->image_id >= 0)
2051 new_afsi.image_id = tad->cto->image_id;
2052 if (tad->cto->num_played >= 0)
2053 new_afsi.num_played = tad->cto->num_played;
2054 if (tad->cto->last_played >= 0)
2055 new_afsi.last_played = tad->cto->last_played;
2056 if (tad->cto->amp >= 0)
2057 new_afsi.amp = tad->cto->amp;
2058 }
2059 tad->num_matches++;
2060 save_afsi(&new_afsi, &obj); /* in-place update */
2061 aced.aft_row = row;
2062 aced.old_afsi = &old_afsi;
2063 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2064 return 1;
2065 }
2066
2067 static void com_touch_callback(int fd, const struct osl_object *query)
2068 {
2069 struct touch_action_data tad = {.cto = query->data,
2070 .pb = {
2071 .max_size = SHMMAX,
2072 .private_data = &fd,
2073 .max_size_handler = pass_buffer_as_shm
2074 }
2075 };
2076 int ret, ret2 = 0;
2077 struct pattern_match_data pmd = {
2078 .table = audio_file_table,
2079 .loop_col_num = AFTCOL_HASH,
2080 .match_col_num = AFTCOL_PATH,
2081 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2082 .size = query->size - sizeof(*tad.cto)},
2083 .data = &tad,
2084 .action = touch_audio_file
2085 };
2086 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2087 pmd.fnmatch_flags |= FNM_PATHNAME;
2088 ret = for_each_matching_row(&pmd);
2089 if (ret < 0)
2090 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2091 else
2092 if (!tad.num_matches)
2093 ret2 = para_printf(&tad.pb, "no matches\n");
2094 if (ret2 >= 0 && tad.pb.offset)
2095 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2096 free(tad.pb.buf);
2097 }
2098
2099 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2100 {
2101 struct com_touch_options cto = {
2102 .num_played = -1,
2103 .last_played = -1,
2104 .lyrics_id = -1,
2105 .image_id = -1,
2106 .amp = -1,
2107 };
2108 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2109 int i, ret;
2110
2111
2112 for (i = 1; i < argc; i++) {
2113 const char *arg = argv[i];
2114 if (arg[0] != '-')
2115 break;
2116 if (!strcmp(arg, "--")) {
2117 i++;
2118 break;
2119 }
2120 if (!strncmp(arg, "-n=", 3)) {
2121 ret = para_atoi32(arg + 3, &cto.num_played);
2122 if (ret < 0)
2123 return ret;
2124 continue;
2125 }
2126 if (!strncmp(arg, "-l=", 3)) {
2127 ret = para_atoi64(arg + 3, &cto.last_played);
2128 if (ret < 0)
2129 return ret;
2130 continue;
2131 }
2132 if (!strncmp(arg, "-y=", 3)) {
2133 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2134 if (ret < 0)
2135 return ret;
2136 continue;
2137 }
2138 if (!strncmp(arg, "-i=", 3)) {
2139 ret = para_atoi32(arg + 3, &cto.image_id);
2140 if (ret < 0)
2141 return ret;
2142 continue;
2143 }
2144 if (!strncmp(arg, "-a=", 3)) {
2145 int32_t val;
2146 ret = para_atoi32(arg + 3, &val);
2147 if (ret < 0)
2148 return ret;
2149 if (val < 0 || val > 255)
2150 return -ERRNO_TO_PARA_ERROR(EINVAL);
2151 cto.amp = val;
2152 continue;
2153 }
2154 if (!strcmp(arg, "-p")) {
2155 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2156 continue;
2157 }
2158 if (!strcmp(arg, "-v")) {
2159 cto.flags |= TOUCH_FLAG_VERBOSE;
2160 continue;
2161 }
2162 break; /* non-option starting with dash */
2163 }
2164 if (i >= argc)
2165 return -E_AFT_SYNTAX;
2166 ret = send_option_arg_callback_request(&query, argc - i,
2167 argv + i, com_touch_callback, rc4_send_result, rc4c);
2168 if (ret < 0)
2169 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2170 return ret;
2171 }
2172
2173 /** Flags for com_rm(). */
2174 enum rm_flags {
2175 /** -v */
2176 RM_FLAG_VERBOSE = 1,
2177 /** -f */
2178 RM_FLAG_FORCE = 2,
2179 /** -p */
2180 RM_FLAG_FNM_PATHNAME = 4
2181 };
2182
2183 /** Data passed to the action handler of com_rm(). */
2184 struct com_rm_action_data {
2185 /** Command line flags ((see \ref rm_flags). */
2186 uint32_t flags;
2187 /** Message buffer. */
2188 struct para_buffer pb;
2189 /** Number of audio files removed. */
2190 unsigned num_removed;
2191 };
2192
2193 static int remove_audio_file(__a_unused struct osl_table *table,
2194 struct osl_row *row, const char *name, void *data)
2195 {
2196 struct com_rm_action_data *crd = data;
2197 int ret;
2198
2199 if (crd->flags & RM_FLAG_VERBOSE) {
2200 ret = para_printf(&crd->pb, "removing %s\n", name);
2201 if (ret < 0)
2202 return ret;
2203 }
2204 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2205 ret = osl(osl_del_row(audio_file_table, row));
2206 if (ret < 0)
2207 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2208 else
2209 crd->num_removed++;
2210 return ret;
2211 }
2212
2213 static void com_rm_callback(int fd, const struct osl_object *query)
2214 {
2215 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2216 .pb = {
2217 .max_size = SHMMAX,
2218 .private_data = &fd,
2219 .max_size_handler = pass_buffer_as_shm
2220 }
2221 };
2222 int ret;
2223 struct pattern_match_data pmd = {
2224 .table = audio_file_table,
2225 .loop_col_num = AFTCOL_HASH,
2226 .match_col_num = AFTCOL_PATH,
2227 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2228 .size = query->size - sizeof(uint32_t)},
2229 .data = &crd,
2230 .action = remove_audio_file
2231 };
2232 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2233 pmd.fnmatch_flags |= FNM_PATHNAME;
2234 ret = for_each_matching_row(&pmd);
2235 if (ret < 0) {
2236 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2237 return;
2238 }
2239 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2240 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2241 else {
2242 if (crd.flags & RM_FLAG_VERBOSE)
2243 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2244 }
2245 if (ret >= 0 && crd.pb.offset)
2246 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2247 free(crd.pb.buf);
2248 }
2249
2250 /* TODO options: -r (recursive) */
2251 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2252 {
2253 uint32_t flags = 0;
2254 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2255 int i, ret;
2256
2257 for (i = 1; i < argc; i++) {
2258 const char *arg = argv[i];
2259 if (arg[0] != '-')
2260 break;
2261 if (!strcmp(arg, "--")) {
2262 i++;
2263 break;
2264 }
2265 if (!strcmp(arg, "-f")) {
2266 flags |= RM_FLAG_FORCE;
2267 continue;
2268 }
2269 if (!strcmp(arg, "-p")) {
2270 flags |= RM_FLAG_FNM_PATHNAME;
2271 continue;
2272 }
2273 if (!strcmp(arg, "-v")) {
2274 flags |= RM_FLAG_VERBOSE;
2275 continue;
2276 }
2277 break;
2278 }
2279 if (i >= argc)
2280 return -E_AFT_SYNTAX;
2281 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2282 com_rm_callback, rc4_send_result, rc4c);
2283 if (ret < 0)
2284 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2285 return ret;
2286 }
2287
2288 /**
2289 * Flags used by the cpsi command.
2290 *
2291 * \sa com_cpsi().
2292 */
2293 enum cpsi_flags {
2294 /** Whether the lyrics id should be copied. */
2295 CPSI_FLAG_COPY_LYRICS_ID = 1,
2296 /** Whether the image id should be copied. */
2297 CPSI_FLAG_COPY_IMAGE_ID = 2,
2298 /** Whether the lastplayed time should be copied. */
2299 CPSI_FLAG_COPY_LASTPLAYED = 4,
2300 /** Whether the numplayed count should be copied. */
2301 CPSI_FLAG_COPY_NUMPLAYED = 8,
2302 /** Whether the attributes should be copied. */
2303 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2304 /** Activates verbose mode. */
2305 CPSI_FLAG_VERBOSE = 32,
2306 };
2307
2308 /** Data passed to the action handler of com_cpsi(). */
2309 struct cpsi_action_data {
2310 /** command line flags (see \ref cpsi_flags). */
2311 unsigned flags;
2312 /** Number of audio files changed. */
2313 unsigned num_copied;
2314 /** Message buffer. */
2315 struct para_buffer pb;
2316 /** Values are copied from here. */
2317 struct afs_info source_afsi;
2318 };
2319
2320 static int copy_selector_info(__a_unused struct osl_table *table,
2321 struct osl_row *row, const char *name, void *data)
2322 {
2323 struct cpsi_action_data *cad = data;
2324 struct osl_object target_afsi_obj;
2325 int ret;
2326 struct afs_info old_afsi, target_afsi;
2327 struct afsi_change_event_data aced;
2328
2329 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2330 if (ret < 0)
2331 return ret;
2332 load_afsi(&target_afsi, &target_afsi_obj);
2333 old_afsi = target_afsi;
2334 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2335 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2336 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2337 target_afsi.image_id = cad->source_afsi.image_id;
2338 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2339 target_afsi.last_played = cad->source_afsi.last_played;
2340 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2341 target_afsi.num_played = cad->source_afsi.num_played;
2342 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2343 target_afsi.attributes = cad->source_afsi.attributes;
2344 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2345 cad->num_copied++;
2346 if (cad->flags & CPSI_FLAG_VERBOSE) {
2347 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2348 if (ret < 0)
2349 return ret;
2350 }
2351 aced.aft_row = row;
2352 aced.old_afsi = &old_afsi;
2353 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2354 return 1;
2355 }
2356
2357 static void com_cpsi_callback(int fd, const struct osl_object *query)
2358 {
2359 struct cpsi_action_data cad = {
2360 .flags = *(unsigned *)query->data,
2361 .pb = {
2362 .max_size = SHMMAX,
2363 .private_data = &fd,
2364 .max_size_handler = pass_buffer_as_shm
2365 }
2366 };
2367 int ret;
2368 char *source_path = (char *)query->data + sizeof(cad.flags);
2369 struct pattern_match_data pmd = {
2370 .table = audio_file_table,
2371 .loop_col_num = AFTCOL_HASH,
2372 .match_col_num = AFTCOL_PATH,
2373 .patterns = {.data = source_path + strlen(source_path) + 1,
2374 .size = query->size - sizeof(cad.flags)
2375 - strlen(source_path) - 1},
2376 .data = &cad,
2377 .action = copy_selector_info
2378 };
2379
2380 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2381 if (ret < 0)
2382 goto out;
2383 ret = for_each_matching_row(&pmd);
2384 out:
2385 if (ret < 0)
2386 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2387 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2388 if (cad.num_copied)
2389 para_printf(&cad.pb, "copied requested afsi from %s "
2390 "to %u files\n", source_path, cad.num_copied);
2391 else
2392 para_printf(&cad.pb, "nothing copied\n");
2393 }
2394 if (cad.pb.offset)
2395 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2396 free(cad.pb.buf);
2397 }
2398
2399 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2400 {
2401 unsigned flags = 0;
2402 int i, ret;
2403 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2404
2405 for (i = 1; i < argc; i++) {
2406 const char *arg = argv[i];
2407 if (arg[0] != '-')
2408 break;
2409 if (!strcmp(arg, "--")) {
2410 i++;
2411 break;
2412 }
2413 if (!strcmp(arg, "-y")) {
2414 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2415 continue;
2416 }
2417 if (!strcmp(arg, "-i")) {
2418 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2419 continue;
2420 }
2421 if (!strcmp(arg, "-l")) {
2422 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2423 continue;
2424 }
2425 if (!strcmp(arg, "-n")) {
2426 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2427 continue;
2428 }
2429 if (!strcmp(arg, "-a")) {
2430 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2431 continue;
2432 }
2433 if (!strcmp(arg, "-v")) {
2434 flags |= CPSI_FLAG_VERBOSE;
2435 continue;
2436 }
2437 break;
2438 }
2439 if (i + 1 >= argc) /* need at least source file and pattern */
2440 return -E_AFT_SYNTAX;
2441 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2442 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2443 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2444 com_cpsi_callback, rc4_send_result, rc4c);
2445 if (ret < 0)
2446 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2447 return ret;
2448 }
2449
2450 static void afs_stat_callback(int fd, const struct osl_object *query)
2451 {
2452 int *parser_friendly = query->data;
2453 char *buf = *parser_friendly?
2454 parser_friendly_status_items : status_items;
2455
2456 if (!buf)
2457 return;
2458 pass_buffer_as_shm(buf, strlen(buf), &fd);
2459 }
2460
2461 int send_afs_status(struct rc4_context *rc4c, int parser_friendly)
2462 {
2463 struct osl_object query = {.data = &parser_friendly,
2464 .size = sizeof(parser_friendly)};
2465
2466 return send_callback_request(afs_stat_callback, &query, rc4_send_result, rc4c);
2467 }
2468
2469 /* TODO: optionally fix problems by removing offending rows */
2470 static int check_audio_file(struct osl_row *row, void *data)
2471 {
2472 char *path;
2473 struct para_buffer *pb = data;
2474 struct stat statbuf;
2475 int ret = get_audio_file_path_of_row(row, &path);
2476 struct afs_info afsi;
2477 char *blob_name;
2478
2479 if (ret < 0)
2480 return para_printf(pb, "%s\n", para_strerror(-ret));
2481 if (stat(path, &statbuf) < 0) {
2482 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2483 if (ret < 0)
2484 return ret;
2485 } else {
2486 if (!S_ISREG(statbuf.st_mode)) {
2487 ret = para_printf(pb, "%s: not a regular file\n", path);
2488 if (ret < 0)
2489 return ret;
2490 }
2491 }
2492 ret = get_afsi_of_row(row, &afsi);
2493 if (ret < 0)
2494 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2495 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2496 if (ret < 0) {
2497 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2498 para_strerror(-ret));
2499 if (ret < 0)
2500 return ret;
2501 }
2502 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2503 if (ret < 0)
2504 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2505 para_strerror(-ret));
2506 return ret;
2507 }
2508
2509 /**
2510 * Check the audio file table for inconsistencies.
2511 *
2512 * \param fd The afs socket.
2513 * \param query Unused.
2514 *
2515 * This function always succeeds.
2516 *
2517 * \sa com_check().
2518 */
2519 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2520 {
2521 struct para_buffer pb = {
2522 .max_size = SHMMAX,
2523 .private_data = &fd,
2524 .max_size_handler = pass_buffer_as_shm
2525 };
2526 int ret = para_printf(&pb, "checking audio file table...\n");
2527
2528 if (ret < 0)
2529 return;
2530 audio_file_loop(&pb, check_audio_file);
2531 if (pb.offset)
2532 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2533 free(pb.buf);
2534 }
2535
2536 /**
2537 * Close the audio file table.
2538 *
2539 * \param flags Usual flags that are passed to osl_close_table().
2540 *
2541 * \sa osl_close_table().
2542 */
2543 static void aft_close(void)
2544 {
2545 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2546 audio_file_table = NULL;
2547 free(status_items);
2548 status_items = NULL;
2549 free(parser_friendly_status_items);
2550 parser_friendly_status_items = NULL;
2551 }
2552
2553 /**
2554 * Open the audio file table.
2555 *
2556 * \param dir The database directory.
2557 *
2558 * \return Standard.
2559 *
2560 * \sa osl_open_table().
2561 */
2562 static int aft_open(const char *dir)
2563 {
2564 int ret;
2565
2566 audio_file_table_desc.dir = dir;
2567 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2568 if (ret >= 0) {
2569 unsigned num;
2570 osl_get_num_rows(audio_file_table, &num);
2571 PARA_INFO_LOG("audio file table contains %d files\n", num);
2572 return ret;
2573 }
2574 PARA_INFO_LOG("failed to open audio file table\n");
2575 audio_file_table = NULL;
2576 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2577 return 1;
2578 return ret;
2579 }
2580
2581 static int aft_create(const char *dir)
2582 {
2583 audio_file_table_desc.dir = dir;
2584 return osl(osl_create_table(&audio_file_table_desc));
2585 }
2586
2587 static int clear_attribute(struct osl_row *row, void *data)
2588 {
2589 struct rmatt_event_data *red = data;
2590 struct afs_info afsi;
2591 struct osl_object obj;
2592 int ret = get_afsi_object_of_row(row, &obj);
2593 uint64_t mask = ~(1ULL << red->bitnum);
2594
2595 if (ret < 0)
2596 return ret;
2597 ret = load_afsi(&afsi, &obj);
2598 if (ret < 0)
2599 return ret;
2600 afsi.attributes &= mask;
2601 save_afsi(&afsi, &obj);
2602 return 1;
2603 }
2604
2605 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2606 void *data)
2607 {
2608 int ret;
2609
2610 switch(event) {
2611 case ATTRIBUTE_REMOVE: {
2612 const struct rmatt_event_data *red = data;
2613 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2614 "entries in the audio file table\n", red->name,
2615 red->bitnum);
2616 if (ret < 0)
2617 return ret;
2618 return audio_file_loop(data, clear_attribute);
2619 }
2620 default:
2621 return 1;
2622 }
2623 }
2624
2625 /**
2626 * Initialize the audio file table.
2627 *
2628 * \param t Pointer to the structure to be initialized.
2629 */
2630 void aft_init(struct afs_table *t)
2631 {
2632 t->open = aft_open;
2633 t->close = aft_close;
2634 t->create = aft_create;
2635 t->event_handler = aft_event_handler;
2636 }