Documentation updates for 0.4.
[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 <dirent.h> /* readdir() */
10 #include <openssl/rc4.h>
11
12 #include <osl.h>
13 #include "para.h"
14 #include "error.h"
15 #include "crypt.h"
16 #include "string.h"
17 #include <sys/mman.h>
18 #include <fnmatch.h>
19 #include <sys/shm.h>
20
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 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 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 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 int load_afd(int shmid, struct audio_file_data *afd)
656 {
657 void *shm_afd;
658 char *buf;
659 int ret;
660
661 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
662 if (ret < 0)
663 return ret;
664 *afd = *(struct audio_file_data *)shm_afd;
665 buf = shm_afd;
666 buf += sizeof(*afd);
667 load_chunk_table(&afd->afhi, buf);
668 shm_detach(shm_afd);
669 return 1;
670 }
671
672 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
673 time_t current_time, enum ls_listing_mode lm)
674 {
675 struct tm t;
676
677 if (!localtime_r((time_t *)seconds, &t))
678 return -E_LOCALTIME;
679 if (lm == LS_MODE_MBOX) {
680 if (!strftime(buf, size, "%c", &t))
681 return -E_STRFTIME;
682 return 1;
683 }
684 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
685 if (!strftime(buf, size, "%b %e %k:%M", &t))
686 return -E_STRFTIME;
687 return 1;
688 }
689 if (!strftime(buf, size, "%b %e %Y", &t))
690 return -E_STRFTIME;
691 return 1;
692 }
693
694 /** Compute the number of (decimal) digits of a number. */
695 #define GET_NUM_DIGITS(x, num) { \
696 typeof((x)) _tmp = PARA_ABS(x); \
697 *num = 1; \
698 if ((_tmp)) \
699 while ((_tmp) > 9) { \
700 (_tmp) /= 10; \
701 (*num)++; \
702 } \
703 }
704
705 static short unsigned get_duration_width(int seconds)
706 {
707 short unsigned width;
708 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
709
710 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
711 return 4 + (mins > 9);
712 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
713 GET_NUM_DIGITS(hours, &width);
714 return width + 6;
715 }
716
717 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
718 {
719 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
720 short unsigned max_width;
721
722 if (!hours) { /* m:ss or mm:ss */
723 max_width = opts->mode == LS_MODE_LONG?
724 opts->widths.duration_width : 4;
725 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
726 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
727 max_width = opts->mode == LS_MODE_LONG?
728 opts->widths.duration_width : 7;
729 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
730 seconds % 60);
731 }
732 }
733
734
735 static int write_attribute_items(struct para_buffer *b,
736 const char *att_bitmap, struct afs_info *afsi)
737 {
738 char *att_text;
739 int ret;
740
741 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
742 if (ret < 0)
743 return ret;
744 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
745 if (ret < 0)
746 return ret;
747 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
748 free(att_text);
749 return ret;
750 }
751
752 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
753 {
754 char *lyrics_name;
755 int ret;
756
757 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
758 if (ret < 0)
759 return ret;
760 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
761 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
762 lyrics_name : "(none)");
763 }
764
765 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
766 {
767 char *image_name;
768 int ret;
769
770 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
771 if (ret < 0)
772 return ret;
773 img_get_name_by_id(afsi->image_id, &image_name);
774 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
775 image_name : "(none)");
776 }
777
778 static int write_filename_items(struct para_buffer *b, const char *path,
779 unsigned flags)
780 {
781 char *val;
782 int ret;
783
784 if (!(flags & LS_FLAG_FULL_PATH))
785 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
786 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
787 if (ret < 0)
788 return ret;
789 val = para_basename(path);
790 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
791 if (ret < 0)
792 return ret;
793 val = para_dirname(path);
794 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
795 free(val);
796 return ret;
797 }
798
799 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
800 {
801 struct osl_object chunk_table_obj;
802 struct osl_row *aft_row;
803 int ret, i;
804 char *buf;
805
806 ret = aft_get_row_of_hash(d->hash, &aft_row);
807 if (ret < 0)
808 return ret;
809 ret = osl_open_disk_object(audio_file_table, aft_row,
810 AFTCOL_CHUNKS, &chunk_table_obj);
811 if (ret < 0)
812 return ret;
813 ret = para_printf(b, "%s\n"
814 "chunk_time: %lu:%lu\nchunk_offsets: ",
815 d->path,
816 (long unsigned) d->afhi.chunk_tv.tv_sec,
817 (long unsigned) d->afhi.chunk_tv.tv_usec
818 );
819 if (ret < 0)
820 goto out;
821 buf = chunk_table_obj.data;
822 for (i = 0; i <= d->afhi.chunks_total; i++) {
823 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
824 if (ret < 0)
825 goto out;
826 }
827 ret = para_printf(b, "\n");
828 out:
829 osl_close_disk_object(&chunk_table_obj);
830 return ret;
831 }
832
833 static int write_score(struct para_buffer *b, struct ls_data *d,
834 struct ls_options *opts)
835 {
836 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
837 return 0;
838 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
839 }
840
841 static int print_list_item(struct ls_data *d, struct ls_options *opts,
842 struct para_buffer *b, time_t current_time)
843 {
844 int ret;
845 char att_buf[65];
846 char last_played_time[30];
847 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
848 struct afs_info *afsi = &d->afsi;
849 struct afh_info *afhi = &d->afhi;
850 char asc_hash[2 * HASH_SIZE + 1];
851
852 if (opts->mode == LS_MODE_SHORT) {
853 ret = para_printf(b, "%s\n", d->path);
854 goto out;
855 }
856 if (opts->mode == LS_MODE_CHUNKS) {
857 ret = print_chunk_table(d, b);
858 goto out;
859 }
860 get_attribute_bitmap(&afsi->attributes, att_buf);
861 if (opts->flags & LS_FLAG_UNIXDATE)
862 sprintf(last_played_time, "%llu",
863 (long long unsigned)afsi->last_played);
864 else {
865 ret = get_local_time(&afsi->last_played, last_played_time,
866 sizeof(last_played_time), current_time, opts->mode);
867 if (ret < 0)
868 goto out;
869 }
870 get_duration_buf(afhi->seconds_total, duration_buf, opts);
871 if (opts->mode == LS_MODE_LONG) {
872 struct ls_widths *w = &opts->widths;
873 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
874 ret = para_printf(b, "%*li ",
875 opts->widths.score_width, d->score);
876 if (ret < 0)
877 goto out;
878 }
879 ret = para_printf(b,
880 "%s " /* attributes */
881 "%*u " /* amp */
882 "%*d " /* image_id */
883 "%*d " /* lyrics_id */
884 "%*d " /* bitrate */
885 "%s " /* audio format */
886 "%*d " /* frequency */
887 "%d " /* channels */
888 "%s " /* duration */
889 "%*d " /* num_played */
890 "%s " /* last_played */
891 "%s\n", /* path */
892 att_buf,
893 w->amp_width, afsi->amp,
894 w->image_id_width, afsi->image_id,
895 w->lyrics_id_width, afsi->lyrics_id,
896 w->bitrate_width, afhi->bitrate,
897 audio_format_name(afsi->audio_format_id),
898 w->frequency_width, afhi->frequency,
899 afhi->channels,
900 duration_buf,
901 w->num_played_width, afsi->num_played,
902 last_played_time,
903 d->path
904 );
905 goto out;
906 }
907 if (opts->mode == LS_MODE_MBOX) {
908 const char *bn = para_basename(d->path);
909 ret = para_printf(b,
910 "From foo@localhost %s\n"
911 "Received: from\nTo: bar\nFrom: a\n"
912 "Subject: %s\n\n",
913 last_played_time,
914 bn? bn : "?");
915 if (ret < 0)
916 goto out;
917 }
918 ret = write_filename_items(b, d->path, opts->flags);
919 if (ret < 0)
920 goto out;
921 ret = write_score(b, d, opts);
922 if (ret < 0)
923 goto out;
924 ret = write_attribute_items(b, att_buf, afsi);
925 if (ret < 0)
926 goto out;
927 ret = write_image_items(b, afsi);
928 if (ret < 0)
929 goto out;
930 ret = write_lyrics_items(b, afsi);
931 if (ret < 0)
932 goto out;
933 hash_to_asc(d->hash, asc_hash);
934 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
935 if (ret < 0)
936 goto out;
937 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
938 if (ret < 0)
939 goto out;
940 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
941 audio_format_name(afsi->audio_format_id));
942 if (ret < 0)
943 goto out;
944 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
945 if (ret < 0)
946 goto out;
947 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
948 if (ret < 0)
949 goto out;
950 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
951 if (ret < 0)
952 goto out;
953 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
954 afhi->seconds_total);
955 if (ret < 0)
956 goto out;
957 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
958 if (ret < 0)
959 goto out;
960 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
961 if (ret < 0)
962 goto out;
963 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
964 if (ret < 0)
965 goto out;
966 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
967 tv2ms(&afhi->chunk_tv));
968 if (ret < 0)
969 goto out;
970 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
971 afhi->chunks_total);
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
978 if (ret < 0)
979 goto out;
980 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
981 if (ret < 0)
982 goto out;
983 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
984 if (ret < 0)
985 goto out;
986 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
987 if (ret < 0)
988 goto out;
989 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
990 if (ret < 0)
991 goto out;
992 if (opts->mode == LS_MODE_MBOX) {
993 struct osl_object lyrics_def;
994 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
995 if (lyrics_def.data) {
996 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
997 (char *)lyrics_def.data);
998 osl_close_disk_object(&lyrics_def);
999 }
1000 }
1001 out:
1002 return ret;
1003 }
1004
1005 static int make_status_items(struct audio_file_data *afd,
1006 struct afs_info *afsi, char *path, long score,
1007 HASH_TYPE *hash)
1008 {
1009 struct ls_data d = {
1010 .afhi = afd->afhi,
1011 .afsi = *afsi,
1012 .path = path,
1013 .score = score,
1014 .hash = hash
1015 };
1016 struct ls_options opts = {
1017 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1018 .mode = LS_MODE_VERBOSE,
1019 };
1020 struct para_buffer pb = {.max_size = SHMMAX - 1};
1021 time_t current_time;
1022 int ret;
1023
1024 time(&current_time);
1025 ret = print_list_item(&d, &opts, &pb, current_time);
1026 if (ret < 0)
1027 return ret;
1028 free(status_items);
1029 status_items = pb.buf;
1030 memset(&pb, 0, sizeof(pb));
1031 pb.max_size = SHMMAX - 1;
1032 pb.flags = PBF_SIZE_PREFIX;
1033 ret = print_list_item(&d, &opts, &pb, current_time);
1034 if (ret < 0) {
1035 free(status_items);
1036 status_items = NULL;
1037 return ret;
1038 }
1039 free(parser_friendly_status_items);
1040 parser_friendly_status_items = pb.buf;
1041 return 1;
1042 }
1043
1044 /**
1045 * Mmap the given audio file and update statistics.
1046 *
1047 * \param aft_row Determines the audio file to be opened and updated.
1048 * \param score The score of the audio file.
1049 * \param afd Result pointer.
1050 *
1051 * On success, the numplayed field of the audio file selector info is increased
1052 * and the lastplayed time is set to the current time. Finally, the score of
1053 * the audio file is updated.
1054 *
1055 * \return Positive shmid on success, negative on errors.
1056 */
1057 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1058 struct audio_file_data *afd)
1059 {
1060 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1061 struct osl_object afsi_obj;
1062 struct afs_info old_afsi, new_afsi;
1063 int ret = get_hash_of_row(aft_row, &aft_hash);
1064 struct afsi_change_event_data aced;
1065 struct osl_object map, chunk_table_obj;
1066 char *path;
1067
1068 if (ret < 0)
1069 return ret;
1070 ret = get_audio_file_path_of_row(aft_row, &path);
1071 if (ret < 0)
1072 return ret;
1073 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1074 if (ret < 0)
1075 return ret;
1076 ret = load_afsi(&old_afsi, &afsi_obj);
1077 if (ret < 0)
1078 return ret;
1079 ret = get_afhi_of_row(aft_row, &afd->afhi);
1080 if (ret < 0)
1081 return ret;
1082 afd->afhi.chunk_table = NULL;
1083 ret = osl_open_disk_object(audio_file_table, aft_row,
1084 AFTCOL_CHUNKS, &chunk_table_obj);
1085 if (ret < 0)
1086 goto err;
1087 ret = mmap_full_file(path, O_RDONLY, &map.data,
1088 &map.size, &afd->fd);
1089 if (ret < 0)
1090 goto err;
1091 hash_function(map.data, map.size, file_hash);
1092 ret = hash_compare(file_hash, aft_hash);
1093 para_munmap(map.data, map.size);
1094 if (ret) {
1095 ret = -E_HASH_MISMATCH;
1096 goto err;
1097 }
1098 new_afsi = old_afsi;
1099 new_afsi.num_played++;
1100 new_afsi.last_played = time(NULL);
1101 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1102
1103 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1104 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1105 if (ret < 0)
1106 goto err;
1107 aced.aft_row = aft_row;
1108 aced.old_afsi = &old_afsi;
1109 afs_event(AFSI_CHANGE, NULL, &aced);
1110 ret = save_afd(afd);
1111 err:
1112 free(afd->afhi.chunk_table);
1113 osl_close_disk_object(&chunk_table_obj);
1114 return ret;
1115 }
1116
1117 static int ls_audio_format_compare(const void *a, const void *b)
1118 {
1119 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1120 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1121 }
1122
1123 static int ls_duration_compare(const void *a, const void *b)
1124 {
1125 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1126 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1127 }
1128
1129 static int ls_bitrate_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->afhi.bitrate, d2->afhi.bitrate);
1133 }
1134
1135 static int ls_lyrics_id_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->afsi.lyrics_id, d2->afsi.lyrics_id);
1139 }
1140
1141 static int ls_image_id_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->afsi.image_id, d2->afsi.image_id);
1145 }
1146
1147 static int ls_channels_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->afhi.channels, d2->afhi.channels);
1151 }
1152
1153 static int ls_frequency_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->afhi.frequency, d2->afhi.frequency);
1157 }
1158
1159 static int ls_num_played_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->afsi.num_played, d2->afsi.num_played);
1163 }
1164
1165 static int ls_last_played_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->afsi.last_played, d2->afsi.last_played);
1169 }
1170
1171 static int ls_score_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->score, d2->score);
1175 }
1176
1177 static int ls_path_compare(const void *a, const void *b)
1178 {
1179 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1180 return strcmp(d1->path, d2->path);
1181 }
1182
1183 static int sort_matching_paths(struct ls_options *options)
1184 {
1185 size_t nmemb = options->num_matching_paths;
1186 size_t size = sizeof(*options->data_ptr);
1187 int (*compar)(const void *, const void *);
1188 int i;
1189
1190 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1191 for (i = 0; i < nmemb; i++)
1192 options->data_ptr[i] = options->data + i;
1193
1194 /* In these cases the array is already sorted */
1195 if (options->sorting == LS_SORT_BY_PATH
1196 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1197 && (options->flags & LS_FLAG_FULL_PATH))
1198 return 1;
1199 if (options->sorting == LS_SORT_BY_SCORE &&
1200 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1201 return 1;
1202
1203 switch (options->sorting) {
1204 case LS_SORT_BY_PATH:
1205 compar = ls_path_compare; break;
1206 case LS_SORT_BY_SCORE:
1207 compar = ls_score_compare; break;
1208 case LS_SORT_BY_LAST_PLAYED:
1209 compar = ls_last_played_compare; break;
1210 case LS_SORT_BY_NUM_PLAYED:
1211 compar = ls_num_played_compare; break;
1212 case LS_SORT_BY_FREQUENCY:
1213 compar = ls_frequency_compare; break;
1214 case LS_SORT_BY_CHANNELS:
1215 compar = ls_channels_compare; break;
1216 case LS_SORT_BY_IMAGE_ID:
1217 compar = ls_image_id_compare; break;
1218 case LS_SORT_BY_LYRICS_ID:
1219 compar = ls_lyrics_id_compare; break;
1220 case LS_SORT_BY_BITRATE:
1221 compar = ls_bitrate_compare; break;
1222 case LS_SORT_BY_DURATION:
1223 compar = ls_duration_compare; break;
1224 case LS_SORT_BY_AUDIO_FORMAT:
1225 compar = ls_audio_format_compare; break;
1226 default:
1227 return -E_BAD_SORT;
1228 }
1229 qsort(options->data_ptr, nmemb, size, compar);
1230 return 1;
1231 }
1232
1233 /* row is either an aft_row or a row of the score table */
1234 /* TODO: Only compute widths if we need them */
1235 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1236 {
1237 int ret, i;
1238 struct ls_options *options = ls_opts;
1239 struct ls_data *d;
1240 struct ls_widths *w;
1241 unsigned short num_digits;
1242 unsigned tmp;
1243 struct osl_row *aft_row;
1244 long score;
1245 char *path;
1246
1247 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1248 ret = get_score_and_aft_row(row, &score, &aft_row);
1249 if (ret < 0)
1250 return ret;
1251 } else
1252 aft_row = row;
1253 ret = get_audio_file_path_of_row(aft_row, &path);
1254 if (ret < 0)
1255 return ret;
1256 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1257 char *p = strrchr(path, '/');
1258 if (p)
1259 path = p + 1;
1260 }
1261 if (options->num_patterns) {
1262 for (i = 0; i < options->num_patterns; i++) {
1263 ret = fnmatch(options->patterns[i], path, 0);
1264 if (!ret)
1265 break;
1266 if (ret == FNM_NOMATCH)
1267 continue;
1268 return -E_FNMATCH;
1269 }
1270 if (i >= options->num_patterns) /* no match */
1271 return 1;
1272 }
1273 tmp = options->num_matching_paths++;
1274 if (options->num_matching_paths > options->array_size) {
1275 options->array_size++;
1276 options->array_size *= 2;
1277 options->data = para_realloc(options->data, options->array_size
1278 * sizeof(*options->data));
1279 }
1280 d = options->data + tmp;
1281 ret = get_afsi_of_row(aft_row, &d->afsi);
1282 if (ret < 0)
1283 return ret;
1284 ret = get_afhi_of_row(aft_row, &d->afhi);
1285 if (ret < 0)
1286 return ret;
1287 d->path = path;
1288 ret = get_hash_of_row(aft_row, &d->hash);
1289 if (ret < 0)
1290 goto err;
1291 w = &options->widths;
1292 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1293 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1294 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1295 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1296 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1297 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1298 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1299 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1300 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1301 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1302 /* get the number of chars to print this amount of time */
1303 num_digits = get_duration_width(d->afhi.seconds_total);
1304 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1305 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1306 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1307 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1308 GET_NUM_DIGITS(score, &num_digits);
1309 num_digits++; /* add one for the sign (space or "-") */
1310 w->score_width = PARA_MAX(w->score_width, num_digits);
1311 d->score = score;
1312 }
1313 return 1;
1314 err:
1315 return ret;
1316 }
1317
1318 static void com_ls_callback(int fd, const struct osl_object *query)
1319 {
1320 struct ls_options *opts = query->data;
1321 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1322 struct para_buffer b = {.max_size = SHMMAX,
1323 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1324 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1325 int i = 0, ret;
1326 time_t current_time;
1327
1328 if (opts->num_patterns) {
1329 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1330 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1331 opts->patterns[i] = p;
1332 p += strlen(p) + 1;
1333 }
1334 } else
1335 opts->patterns = NULL;
1336 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1337 ret = admissible_file_loop(opts, prepare_ls_row);
1338 else
1339 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1340 prepare_ls_row));
1341 if (ret < 0)
1342 goto out;
1343 if (!opts->num_matching_paths)
1344 goto out;
1345 ret = sort_matching_paths(opts);
1346 if (ret < 0)
1347 goto out;
1348 time(&current_time);
1349 if (opts->flags & LS_FLAG_REVERSE)
1350 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1351 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1352 if (ret < 0)
1353 goto out;
1354 }
1355 else
1356 for (i = 0; i < opts->num_matching_paths; i++) {
1357 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1358 if (ret < 0)
1359 goto out;
1360 }
1361 out:
1362 if (b.offset)
1363 pass_buffer_as_shm(b.buf, b.offset, &fd);
1364 free(b.buf);
1365 free(opts->data);
1366 free(opts->data_ptr);
1367 free(opts->patterns);
1368 }
1369
1370 /*
1371 * TODO: flags -h (sort by hash)
1372 */
1373 int com_ls(struct rc4_context *rc4c, int argc, char * const * const argv)
1374 {
1375 int i, ret;
1376 unsigned flags = 0;
1377 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1378 enum ls_listing_mode mode = LS_MODE_SHORT;
1379 struct ls_options opts = {.patterns = NULL};
1380 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1381
1382 for (i = 1; i < argc; i++) {
1383 const char *arg = argv[i];
1384 if (arg[0] != '-')
1385 break;
1386 if (!strcmp(arg, "--")) {
1387 i++;
1388 break;
1389 }
1390 if (!strncmp(arg, "-l", 2)) {
1391 if (!*(arg + 2)) {
1392 mode = LS_MODE_LONG;
1393 continue;
1394 }
1395 if (*(arg + 3))
1396 return -E_AFT_SYNTAX;
1397 switch(*(arg + 2)) {
1398 case 's':
1399 mode = LS_MODE_SHORT;
1400 continue;
1401 case 'l':
1402 mode = LS_MODE_LONG;
1403 continue;
1404 case 'v':
1405 mode = LS_MODE_VERBOSE;
1406 continue;
1407 case 'm':
1408 mode = LS_MODE_MBOX;
1409 continue;
1410 case 'c':
1411 mode = LS_MODE_CHUNKS;
1412 continue;
1413 case 'p':
1414 mode = LS_MODE_PARSER;
1415 continue;
1416 default:
1417 return -E_AFT_SYNTAX;
1418 }
1419 }
1420 if (!strcmp(arg, "-p")) {
1421 flags |= LS_FLAG_FULL_PATH;
1422 continue;
1423 }
1424 if (!strcmp(arg, "-a")) {
1425 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1426 continue;
1427 }
1428 if (!strcmp(arg, "-r")) {
1429 flags |= LS_FLAG_REVERSE;
1430 continue;
1431 }
1432 if (!strcmp(arg, "-d")) {
1433 flags |= LS_FLAG_UNIXDATE;
1434 continue;
1435 }
1436 if (!strncmp(arg, "-s", 2)) {
1437 if (!*(arg + 2) || *(arg + 3))
1438 return -E_AFT_SYNTAX;
1439 switch(*(arg + 2)) {
1440 case 'p':
1441 sort = LS_SORT_BY_PATH;
1442 continue;
1443 case 's': /* -ss implies -a */
1444 sort = LS_SORT_BY_SCORE;
1445 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1446 continue;
1447 case 'l':
1448 sort = LS_SORT_BY_LAST_PLAYED;
1449 continue;
1450 case 'n':
1451 sort = LS_SORT_BY_NUM_PLAYED;
1452 continue;
1453 case 'f':
1454 sort = LS_SORT_BY_FREQUENCY;
1455 continue;
1456 case 'c':
1457 sort = LS_SORT_BY_CHANNELS;
1458 continue;
1459 case 'i':
1460 sort = LS_SORT_BY_IMAGE_ID;
1461 continue;
1462 case 'y':
1463 sort = LS_SORT_BY_LYRICS_ID;
1464 continue;
1465 case 'b':
1466 sort = LS_SORT_BY_BITRATE;
1467 continue;
1468 case 'd':
1469 sort = LS_SORT_BY_DURATION;
1470 continue;
1471 case 'a':
1472 sort = LS_SORT_BY_AUDIO_FORMAT;
1473 continue;
1474 default:
1475 return -E_AFT_SYNTAX;
1476 }
1477 }
1478 return -E_AFT_SYNTAX;
1479 }
1480 opts.flags = flags;
1481 opts.sorting = sort;
1482 opts.mode = mode;
1483 opts.num_patterns = argc - i;
1484 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1485 argv + i, com_ls_callback, rc4_send_result, rc4c);
1486 return ret;
1487 }
1488
1489 /**
1490 * Call the given function for each file in the audio file table.
1491 *
1492 * \param private_data An arbitrary data pointer, passed to \a func.
1493 * \param func The custom function to be called.
1494 *
1495 * \return Standard.
1496 */
1497 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1498 {
1499 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1500 func));
1501 }
1502
1503 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1504 {
1505 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1506 struct osl_row *row;
1507
1508 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1509 return row;
1510 }
1511
1512 /** The format of the data stored by save_audio_file_data(). */
1513 enum com_add_buffer_offsets {
1514 /** afhi (if present) starts here. */
1515 CAB_AFHI_OFFSET_POS = 0,
1516 /** Start of the chunk table (if present). */
1517 CAB_CHUNKS_OFFSET_POS = 2,
1518 /** Audio format id. */
1519 CAB_AUDIO_FORMAT_OFFSET = 4,
1520 /** Flags given to the add command. */
1521 CAB_FLAGS_OFFSET = 5,
1522 /** The hash of the audio file being added. */
1523 CAB_HASH_OFFSET = 9,
1524 /** Start of the path of the audio file. */
1525 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1526 };
1527
1528 /*
1529 * Store the given data to a single buffer. Doesn't need the audio file selector
1530 * info struct as the server knows it as well.
1531 *
1532 * It's OK to call this with afhi == NULL. In this case, the audio format
1533 * handler info won't be stored in the buffer.
1534 */
1535 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1536 struct afh_info *afhi, uint32_t flags,
1537 uint8_t audio_format_num, struct osl_object *obj)
1538 {
1539 size_t path_len = strlen(path) + 1;
1540 size_t afhi_size = sizeof_afhi_buf(afhi);
1541 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1542 + sizeof_chunk_table(afhi);
1543 char *buf = para_malloc(size);
1544 uint16_t pos;
1545
1546 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1547 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1548
1549 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1550 strcpy(buf + CAB_PATH_OFFSET, path);
1551
1552 pos = CAB_PATH_OFFSET + path_len;
1553 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1554 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1555 pos + afhi_size - 1);
1556 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1557 save_afhi(afhi, buf + pos);
1558
1559 pos += afhi_size;
1560 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1561 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1562 if (afhi)
1563 save_chunk_table(afhi, buf + pos);
1564 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1565 obj->data = buf;
1566 obj->size = size;
1567 }
1568
1569 /*
1570
1571 Overview of the add command.
1572
1573 Input: What was passed to the callback by the command handler.
1574 ~~~~~~
1575 HS: Hash sister. Whether an audio file with identical hash
1576 already exists in the osl database.
1577
1578 PB: Path brother. Whether a file with the given path exists
1579 in the table.
1580
1581 F: Force flag given. Whether add was called with -f.
1582
1583 output: Action performed by the callback.
1584 ~~~~~~~
1585 AFHI: Whether afhi and chunk table are computed and sent.
1586 ACTION: Table modifications to be done by the callback.
1587
1588 +----+----+---+------+---------------------------------------------------+
1589 | HS | PB | F | AFHI | ACTION
1590 +----+----+---+------+---------------------------------------------------+
1591 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1592 | | update path, keep afsi
1593 +----+----+---+------+---------------------------------------------------+
1594 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1595 | | otherwise: remove PB, HS: update path, keep afhi,
1596 | | afsi.
1597 +----+----+---+------+---------------------------------------------------+
1598 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1599 | | HS, keep afsi
1600 +----+----+---+------+---------------------------------------------------+
1601 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1602 +----+----+---+------+---------------------------------------------------+
1603 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1604 | | (force has no effect)
1605 +----+----+---+------+---------------------------------------------------+
1606 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1607 +----+----+---+------+---------------------------------------------------+
1608 | N | N | Y | Y | (new file) create new entry (force has no effect)
1609 +----+----+---+------+---------------------------------------------------+
1610 | N | N | N | Y | (new file) create new entry
1611 +----+----+---+------+---------------------------------------------------+
1612
1613 Notes:
1614
1615 afhi <=> force or no HS
1616 F => AFHI
1617
1618 */
1619
1620 /** Flags passed to the add command. */
1621 enum com_add_flags {
1622 /** Skip paths that exist already. */
1623 ADD_FLAG_LAZY = 1,
1624 /** Force adding. */
1625 ADD_FLAG_FORCE = 2,
1626 /** Print what is being done. */
1627 ADD_FLAG_VERBOSE = 4,
1628 /** Try to add files with unknown suffixes. */
1629 ADD_FLAG_ALL = 8,
1630 };
1631
1632 static void com_add_callback(int fd, const struct osl_object *query)
1633 {
1634 char *buf = query->data, *path;
1635 struct osl_row *pb, *aft_row;
1636 struct osl_row *hs;
1637 struct osl_object objs[NUM_AFT_COLUMNS];
1638 HASH_TYPE *hash;
1639 char asc[2 * HASH_SIZE + 1];
1640 int ret;
1641 char afsi_buf[AFSI_SIZE];
1642 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1643 struct afs_info default_afsi = {.last_played = 0};
1644 struct para_buffer msg = {.max_size = SHMMAX,
1645 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1646 uint16_t afhi_offset, chunks_offset;
1647
1648 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1649 hash_to_asc(hash, asc);;
1650 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1651 objs[AFTCOL_HASH].size = HASH_SIZE;
1652
1653 path = buf + CAB_PATH_OFFSET;
1654 objs[AFTCOL_PATH].data = path;
1655 objs[AFTCOL_PATH].size = strlen(path) + 1;
1656
1657 PARA_INFO_LOG("request to add %s\n", path);
1658 hs = find_hash_sister(hash);
1659 ret = aft_get_row_of_path(path, &pb);
1660 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1661 goto out;
1662 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1663 if (flags & ADD_FLAG_VERBOSE)
1664 ret = para_printf(&msg, "ignoring duplicate\n");
1665 else
1666 ret = 1;
1667 goto out;
1668 }
1669 if (hs && hs != pb) {
1670 struct osl_object obj;
1671 if (pb) { /* hs trumps pb, remove pb */
1672 if (flags & ADD_FLAG_VERBOSE) {
1673 ret = para_printf(&msg, "removing path brother\n");
1674 if (ret < 0)
1675 goto out;
1676 }
1677 ret = osl(osl_del_row(audio_file_table, pb));
1678 if (ret < 0)
1679 goto out;
1680 pb = NULL;
1681 }
1682 /* file rename, update hs' path */
1683 if (flags & ADD_FLAG_VERBOSE) {
1684 ret = osl(osl_get_object(audio_file_table, hs,
1685 AFTCOL_PATH, &obj));
1686 if (ret < 0)
1687 goto out;
1688 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1689 if (ret < 0)
1690 goto out;
1691 }
1692 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1693 &objs[AFTCOL_PATH]));
1694 if (ret < 0)
1695 goto out;
1696 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1697 if (!(flags & ADD_FLAG_FORCE))
1698 goto out;
1699 }
1700 /* no hs or force mode, child must have sent afhi */
1701 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1702 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1703
1704 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1705 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1706 ret = -E_NO_AFHI;
1707 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1708 goto out;
1709 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1710 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1711 if (pb && !hs) { /* update pb's hash */
1712 char old_asc[2 * HASH_SIZE + 1];
1713 HASH_TYPE *old_hash;
1714 ret = get_hash_of_row(pb, &old_hash);
1715 if (ret < 0)
1716 goto out;
1717 hash_to_asc(old_hash, old_asc);
1718 if (flags & ADD_FLAG_VERBOSE) {
1719 ret = para_printf(&msg, "file change: %s -> %s\n",
1720 old_asc, asc);
1721 if (ret < 0)
1722 goto out;
1723 }
1724 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1725 &objs[AFTCOL_HASH]);
1726 if (ret < 0)
1727 goto out;
1728 }
1729 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1730 struct osl_row *row = pb? pb : hs;
1731 /* update afhi and chunk_table */
1732 if (flags & ADD_FLAG_VERBOSE) {
1733 ret = para_printf(&msg, "updating afhi and chunk table\n");
1734 if (ret < 0)
1735 goto out;
1736 }
1737 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1738 &objs[AFTCOL_AFHI]));
1739 if (ret < 0)
1740 goto out;
1741 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1742 &objs[AFTCOL_CHUNKS]));
1743 if (ret < 0)
1744 goto out;
1745 afs_event(AFHI_CHANGE, &msg, row);
1746 goto out;
1747 }
1748 /* new entry, use default afsi */
1749 if (flags & ADD_FLAG_VERBOSE) {
1750 ret = para_printf(&msg, "new file\n");
1751 if (ret < 0)
1752 goto out;
1753 }
1754 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1755 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1756
1757 objs[AFTCOL_AFSI].data = &afsi_buf;
1758 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1759 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1760 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1761 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1762 out:
1763 if (ret < 0)
1764 para_printf(&msg, "%s\n", para_strerror(-ret));
1765 if (msg.offset)
1766 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1767 free(msg.buf);
1768 }
1769
1770 /** Used by com_add(). */
1771 struct private_add_data {
1772 /** The socket file descriptor, including rc4 keys. */
1773 struct rc4_context *rc4c;
1774 /** The given add flags. */
1775 uint32_t flags;
1776 };
1777
1778 static void path_brother_callback(int fd, const struct osl_object *query)
1779 {
1780 char *path = query->data;
1781 struct osl_row *path_brother;
1782 int ret = aft_get_row_of_path(path, &path_brother);
1783 if (ret < 0)
1784 return;
1785 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1786 }
1787
1788 static void hash_sister_callback(int fd, const struct osl_object *query)
1789 {
1790 HASH_TYPE *hash = query->data;
1791 struct osl_row *hash_sister;
1792
1793 hash_sister = find_hash_sister(hash);
1794 if (!hash_sister)
1795 return;
1796 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1797 }
1798
1799 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1800 {
1801 struct osl_row **row = private;
1802 *row = result->data;
1803 return 1;
1804 }
1805
1806 static int add_one_audio_file(const char *path, void *private_data)
1807 {
1808 int ret, send_ret = 1, fd;
1809 uint8_t format_num = -1;
1810 struct private_add_data *pad = private_data;
1811 struct afh_info afhi, *afhi_ptr = NULL;
1812 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1813 struct osl_object map, obj = {.data = NULL}, query;
1814 HASH_TYPE hash[HASH_SIZE];
1815
1816 ret = guess_audio_format(path);
1817 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1818 goto out_free;
1819 query.data = (char *)path;
1820 query.size = strlen(path) + 1;
1821 ret = send_callback_request(path_brother_callback, &query,
1822 get_row_pointer_from_result, &pb);
1823 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1824 goto out_free;
1825 ret = 1;
1826 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1827 if (pad->flags & ADD_FLAG_VERBOSE)
1828 send_ret = rc4_send_va_buffer(pad->rc4c,
1829 "lazy-ignore: %s\n", path);
1830 goto out_free;
1831 }
1832 /* We still want to add this file. Compute its hash. */
1833 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1834 if (ret < 0)
1835 goto out_free;
1836 hash_function(map.data, map.size, hash);
1837
1838 /* Check whether the database contains a file with the same hash. */
1839 query.data = hash;
1840 query.size = HASH_SIZE;
1841 ret = send_callback_request(hash_sister_callback, &query,
1842 get_row_pointer_from_result, &hs);
1843 if (ret < 0)
1844 goto out_unmap;
1845 /* Return success if we already know this file. */
1846 ret = 1;
1847 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1848 if (pad->flags & ADD_FLAG_VERBOSE)
1849 send_ret = rc4_send_va_buffer(pad->rc4c,
1850 "%s exists, not forcing update\n", path);
1851 goto out_unmap;
1852 }
1853 /*
1854 * We won't recalculate the audio format info and the chunk table if
1855 * there is a hash sister and FORCE was not given.
1856 */
1857 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1858 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1859 if (ret < 0)
1860 goto out_unmap;
1861 format_num = ret;
1862 afhi_ptr = &afhi;
1863 }
1864 munmap(map.data, map.size);
1865 close(fd);
1866 if (pad->flags & ADD_FLAG_VERBOSE) {
1867 send_ret = rc4_send_va_buffer(pad->rc4c, "adding %s\n", path);
1868 if (send_ret < 0)
1869 goto out_free;
1870 }
1871 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1872 /* Ask afs to consider this entry for adding. */
1873 ret = send_callback_request(com_add_callback, &obj, rc4_send_result, pad->rc4c);
1874 goto out_free;
1875
1876 out_unmap:
1877 close(fd);
1878 munmap(map.data, map.size);
1879 out_free:
1880 if (ret < 0 && send_ret >= 0)
1881 send_ret = rc4_send_va_buffer(pad->rc4c,
1882 "failed to add %s (%s)\n", path, para_strerror(-ret));
1883 free(obj.data);
1884 if (afhi_ptr) {
1885 free(afhi_ptr->chunk_table);
1886 free(afhi_ptr->techinfo);
1887 free(afhi_ptr->tags.artist);
1888 free(afhi_ptr->tags.title);
1889 free(afhi_ptr->tags.year);
1890 free(afhi_ptr->tags.album);
1891 free(afhi_ptr->tags.comment);
1892 }
1893 /* Stop adding files only on send errors. */
1894 return send_ret;
1895 }
1896
1897 int com_add(struct rc4_context *rc4c, int argc, char * const * const argv)
1898 {
1899 int i, ret;
1900 struct private_add_data pad = {.rc4c = rc4c, .flags = 0};
1901 struct stat statbuf;
1902
1903 for (i = 1; i < argc; i++) {
1904 const char *arg = argv[i];
1905 if (arg[0] != '-')
1906 break;
1907 if (!strcmp(arg, "--")) {
1908 i++;
1909 break;
1910 }
1911 if (!strcmp(arg, "-a")) {
1912 pad.flags |= ADD_FLAG_ALL;
1913 continue;
1914 }
1915 if (!strcmp(arg, "-l")) {
1916 pad.flags |= ADD_FLAG_LAZY;
1917 continue;
1918 }
1919 if (!strcmp(arg, "-f")) {
1920 pad.flags |= ADD_FLAG_FORCE;
1921 continue;
1922 }
1923 if (!strcmp(arg, "-v")) {
1924 pad.flags |= ADD_FLAG_VERBOSE;
1925 continue;
1926 }
1927 }
1928 if (argc <= i)
1929 return -E_AFT_SYNTAX;
1930 for (; i < argc; i++) {
1931 char *path;
1932 ret = verify_path(argv[i], &path);
1933 if (ret < 0) {
1934 ret = rc4_send_va_buffer(rc4c, "%s: %s\n", argv[i],
1935 para_strerror(-ret));
1936 if (ret < 0)
1937 return ret;
1938 continue;
1939 }
1940 ret = stat(path, &statbuf);
1941 if (ret < 0) {
1942 ret = rc4_send_va_buffer(rc4c, "failed to stat %s (%s)\n", path,
1943 strerror(errno));
1944 free(path);
1945 if (ret < 0)
1946 return ret;
1947 continue;
1948 }
1949 if (S_ISDIR(statbuf.st_mode))
1950 ret = for_each_file_in_dir(path, add_one_audio_file,
1951 &pad);
1952 else
1953 ret = add_one_audio_file(path, &pad);
1954 if (ret < 0) {
1955 rc4_send_va_buffer(rc4c, "%s: %s\n", path, para_strerror(-ret));
1956 free(path);
1957 return ret;
1958 }
1959 free(path);
1960 }
1961 return 1;
1962
1963 }
1964
1965 /**
1966 * Flags used by the touch command.
1967 *
1968 * \sa com_touch().
1969 */
1970 enum touch_flags {
1971 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1972 TOUCH_FLAG_FNM_PATHNAME = 1,
1973 /** Activates verbose mode. */
1974 TOUCH_FLAG_VERBOSE = 2
1975 };
1976
1977 /** Options used by com_touch(). */
1978 struct com_touch_options {
1979 /** New num_played value. */
1980 int32_t num_played;
1981 /** New last played count. */
1982 int64_t last_played;
1983 /** New lyrics id. */
1984 int32_t lyrics_id;
1985 /** New image id. */
1986 int32_t image_id;
1987 /** New amplification value. */
1988 int32_t amp;
1989 /** Command line flags (see \ref touch_flags). */
1990 unsigned flags;
1991 };
1992
1993 /** Data passed to the action handler of com_touch(). */
1994 struct touch_action_data {
1995 /** Command line options (see \ref com_touch_options). */
1996 struct com_touch_options *cto;
1997 /** Message buffer. */
1998 struct para_buffer pb;
1999 /** How many audio files matched the given pattern. */
2000 unsigned num_matches;
2001 };
2002
2003 static int touch_audio_file(__a_unused struct osl_table *table,
2004 struct osl_row *row, const char *name, void *data)
2005 {
2006 struct touch_action_data *tad = data;
2007 struct osl_object obj;
2008 struct afs_info old_afsi, new_afsi;
2009 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2010 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2011 struct afsi_change_event_data aced;
2012
2013 ret = get_afsi_object_of_row(row, &obj);
2014 if (ret < 0)
2015 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2016 ret = load_afsi(&old_afsi, &obj);
2017 if (ret < 0)
2018 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2019 new_afsi = old_afsi;
2020 if (no_options) {
2021 new_afsi.num_played++;
2022 new_afsi.last_played = time(NULL);
2023 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2024 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2025 "last_played = now()\n", name,
2026 new_afsi.num_played);
2027 if (ret < 0)
2028 return ret;
2029 }
2030 } else {
2031 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2032 ret = para_printf(&tad->pb, "touching %s\n", name);
2033 if (ret < 0)
2034 return ret;
2035 }
2036 if (tad->cto->lyrics_id >= 0)
2037 new_afsi.lyrics_id = tad->cto->lyrics_id;
2038 if (tad->cto->image_id >= 0)
2039 new_afsi.image_id = tad->cto->image_id;
2040 if (tad->cto->num_played >= 0)
2041 new_afsi.num_played = tad->cto->num_played;
2042 if (tad->cto->last_played >= 0)
2043 new_afsi.last_played = tad->cto->last_played;
2044 if (tad->cto->amp >= 0)
2045 new_afsi.amp = tad->cto->amp;
2046 }
2047 tad->num_matches++;
2048 save_afsi(&new_afsi, &obj); /* in-place update */
2049 aced.aft_row = row;
2050 aced.old_afsi = &old_afsi;
2051 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2052 return 1;
2053 }
2054
2055 static void com_touch_callback(int fd, const struct osl_object *query)
2056 {
2057 struct touch_action_data tad = {.cto = query->data,
2058 .pb = {
2059 .max_size = SHMMAX,
2060 .private_data = &fd,
2061 .max_size_handler = pass_buffer_as_shm
2062 }
2063 };
2064 int ret, ret2 = 0;
2065 struct pattern_match_data pmd = {
2066 .table = audio_file_table,
2067 .loop_col_num = AFTCOL_HASH,
2068 .match_col_num = AFTCOL_PATH,
2069 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2070 .size = query->size - sizeof(*tad.cto)},
2071 .data = &tad,
2072 .action = touch_audio_file
2073 };
2074 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2075 pmd.fnmatch_flags |= FNM_PATHNAME;
2076 ret = for_each_matching_row(&pmd);
2077 if (ret < 0)
2078 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2079 else
2080 if (!tad.num_matches)
2081 ret2 = para_printf(&tad.pb, "no matches\n");
2082 if (ret2 >= 0 && tad.pb.offset)
2083 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2084 free(tad.pb.buf);
2085 }
2086
2087 int com_touch(struct rc4_context *rc4c, int argc, char * const * const argv)
2088 {
2089 struct com_touch_options cto = {
2090 .num_played = -1,
2091 .last_played = -1,
2092 .lyrics_id = -1,
2093 .image_id = -1,
2094 .amp = -1,
2095 };
2096 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2097 int i, ret;
2098
2099
2100 for (i = 1; i < argc; i++) {
2101 const char *arg = argv[i];
2102 if (arg[0] != '-')
2103 break;
2104 if (!strcmp(arg, "--")) {
2105 i++;
2106 break;
2107 }
2108 if (!strncmp(arg, "-n=", 3)) {
2109 ret = para_atoi32(arg + 3, &cto.num_played);
2110 if (ret < 0)
2111 return ret;
2112 continue;
2113 }
2114 if (!strncmp(arg, "-l=", 3)) {
2115 ret = para_atoi64(arg + 3, &cto.last_played);
2116 if (ret < 0)
2117 return ret;
2118 continue;
2119 }
2120 if (!strncmp(arg, "-y=", 3)) {
2121 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2122 if (ret < 0)
2123 return ret;
2124 continue;
2125 }
2126 if (!strncmp(arg, "-i=", 3)) {
2127 ret = para_atoi32(arg + 3, &cto.image_id);
2128 if (ret < 0)
2129 return ret;
2130 continue;
2131 }
2132 if (!strncmp(arg, "-a=", 3)) {
2133 int32_t val;
2134 ret = para_atoi32(arg + 3, &val);
2135 if (ret < 0)
2136 return ret;
2137 if (val < 0 || val > 255)
2138 return -ERRNO_TO_PARA_ERROR(EINVAL);
2139 cto.amp = val;
2140 continue;
2141 }
2142 if (!strcmp(arg, "-p")) {
2143 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2144 continue;
2145 }
2146 if (!strcmp(arg, "-v")) {
2147 cto.flags |= TOUCH_FLAG_VERBOSE;
2148 continue;
2149 }
2150 break; /* non-option starting with dash */
2151 }
2152 if (i >= argc)
2153 return -E_AFT_SYNTAX;
2154 ret = send_option_arg_callback_request(&query, argc - i,
2155 argv + i, com_touch_callback, rc4_send_result, rc4c);
2156 if (ret < 0)
2157 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2158 return ret;
2159 }
2160
2161 /** Flags for com_rm(). */
2162 enum rm_flags {
2163 /** -v */
2164 RM_FLAG_VERBOSE = 1,
2165 /** -f */
2166 RM_FLAG_FORCE = 2,
2167 /** -p */
2168 RM_FLAG_FNM_PATHNAME = 4
2169 };
2170
2171 /** Data passed to the action handler of com_rm(). */
2172 struct com_rm_action_data {
2173 /** Command line flags ((see \ref rm_flags). */
2174 uint32_t flags;
2175 /** Message buffer. */
2176 struct para_buffer pb;
2177 /** Number of audio files removed. */
2178 unsigned num_removed;
2179 };
2180
2181 static int remove_audio_file(__a_unused struct osl_table *table,
2182 struct osl_row *row, const char *name, void *data)
2183 {
2184 struct com_rm_action_data *crd = data;
2185 int ret;
2186
2187 if (crd->flags & RM_FLAG_VERBOSE) {
2188 ret = para_printf(&crd->pb, "removing %s\n", name);
2189 if (ret < 0)
2190 return ret;
2191 }
2192 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2193 ret = osl(osl_del_row(audio_file_table, row));
2194 if (ret < 0)
2195 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2196 else
2197 crd->num_removed++;
2198 return ret;
2199 }
2200
2201 static void com_rm_callback(int fd, const struct osl_object *query)
2202 {
2203 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2204 .pb = {
2205 .max_size = SHMMAX,
2206 .private_data = &fd,
2207 .max_size_handler = pass_buffer_as_shm
2208 }
2209 };
2210 int ret;
2211 struct pattern_match_data pmd = {
2212 .table = audio_file_table,
2213 .loop_col_num = AFTCOL_HASH,
2214 .match_col_num = AFTCOL_PATH,
2215 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2216 .size = query->size - sizeof(uint32_t)},
2217 .data = &crd,
2218 .action = remove_audio_file
2219 };
2220 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2221 pmd.fnmatch_flags |= FNM_PATHNAME;
2222 ret = for_each_matching_row(&pmd);
2223 if (ret < 0) {
2224 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2225 return;
2226 }
2227 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2228 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2229 else {
2230 if (crd.flags & RM_FLAG_VERBOSE)
2231 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2232 }
2233 if (ret >= 0 && crd.pb.offset)
2234 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2235 free(crd.pb.buf);
2236 }
2237
2238 /* TODO options: -r (recursive) */
2239 int com_rm(struct rc4_context *rc4c, int argc, char * const * const argv)
2240 {
2241 uint32_t flags = 0;
2242 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2243 int i, ret;
2244
2245 for (i = 1; i < argc; i++) {
2246 const char *arg = argv[i];
2247 if (arg[0] != '-')
2248 break;
2249 if (!strcmp(arg, "--")) {
2250 i++;
2251 break;
2252 }
2253 if (!strcmp(arg, "-f")) {
2254 flags |= RM_FLAG_FORCE;
2255 continue;
2256 }
2257 if (!strcmp(arg, "-p")) {
2258 flags |= RM_FLAG_FNM_PATHNAME;
2259 continue;
2260 }
2261 if (!strcmp(arg, "-v")) {
2262 flags |= RM_FLAG_VERBOSE;
2263 continue;
2264 }
2265 break;
2266 }
2267 if (i >= argc)
2268 return -E_AFT_SYNTAX;
2269 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2270 com_rm_callback, rc4_send_result, rc4c);
2271 if (ret < 0)
2272 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2273 return ret;
2274 }
2275
2276 /**
2277 * Flags used by the cpsi command.
2278 *
2279 * \sa com_cpsi().
2280 */
2281 enum cpsi_flags {
2282 /** Whether the lyrics id should be copied. */
2283 CPSI_FLAG_COPY_LYRICS_ID = 1,
2284 /** Whether the image id should be copied. */
2285 CPSI_FLAG_COPY_IMAGE_ID = 2,
2286 /** Whether the lastplayed time should be copied. */
2287 CPSI_FLAG_COPY_LASTPLAYED = 4,
2288 /** Whether the numplayed count should be copied. */
2289 CPSI_FLAG_COPY_NUMPLAYED = 8,
2290 /** Whether the attributes should be copied. */
2291 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2292 /** Activates verbose mode. */
2293 CPSI_FLAG_VERBOSE = 32,
2294 };
2295
2296 /** Data passed to the action handler of com_cpsi(). */
2297 struct cpsi_action_data {
2298 /** command line flags (see \ref cpsi_flags). */
2299 unsigned flags;
2300 /** Number of audio files changed. */
2301 unsigned num_copied;
2302 /** Message buffer. */
2303 struct para_buffer pb;
2304 /** Values are copied from here. */
2305 struct afs_info source_afsi;
2306 };
2307
2308 static int copy_selector_info(__a_unused struct osl_table *table,
2309 struct osl_row *row, const char *name, void *data)
2310 {
2311 struct cpsi_action_data *cad = data;
2312 struct osl_object target_afsi_obj;
2313 int ret;
2314 struct afs_info old_afsi, target_afsi;
2315 struct afsi_change_event_data aced;
2316
2317 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2318 if (ret < 0)
2319 return ret;
2320 load_afsi(&target_afsi, &target_afsi_obj);
2321 old_afsi = target_afsi;
2322 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2323 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2324 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2325 target_afsi.image_id = cad->source_afsi.image_id;
2326 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2327 target_afsi.last_played = cad->source_afsi.last_played;
2328 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2329 target_afsi.num_played = cad->source_afsi.num_played;
2330 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2331 target_afsi.attributes = cad->source_afsi.attributes;
2332 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2333 cad->num_copied++;
2334 if (cad->flags & CPSI_FLAG_VERBOSE) {
2335 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2336 if (ret < 0)
2337 return ret;
2338 }
2339 aced.aft_row = row;
2340 aced.old_afsi = &old_afsi;
2341 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2342 return 1;
2343 }
2344
2345 static void com_cpsi_callback(int fd, const struct osl_object *query)
2346 {
2347 struct cpsi_action_data cad = {
2348 .flags = *(unsigned *)query->data,
2349 .pb = {
2350 .max_size = SHMMAX,
2351 .private_data = &fd,
2352 .max_size_handler = pass_buffer_as_shm
2353 }
2354 };
2355 int ret;
2356 char *source_path = (char *)query->data + sizeof(cad.flags);
2357 struct pattern_match_data pmd = {
2358 .table = audio_file_table,
2359 .loop_col_num = AFTCOL_HASH,
2360 .match_col_num = AFTCOL_PATH,
2361 .patterns = {.data = source_path + strlen(source_path) + 1,
2362 .size = query->size - sizeof(cad.flags)
2363 - strlen(source_path) - 1},
2364 .data = &cad,
2365 .action = copy_selector_info
2366 };
2367
2368 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2369 if (ret < 0)
2370 goto out;
2371 ret = for_each_matching_row(&pmd);
2372 out:
2373 if (ret < 0)
2374 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2375 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2376 if (cad.num_copied)
2377 para_printf(&cad.pb, "copied requested afsi from %s "
2378 "to %u files\n", source_path, cad.num_copied);
2379 else
2380 para_printf(&cad.pb, "nothing copied\n");
2381 }
2382 if (cad.pb.offset)
2383 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2384 free(cad.pb.buf);
2385 }
2386
2387 int com_cpsi(struct rc4_context *rc4c, int argc, char * const * const argv)
2388 {
2389 unsigned flags = 0;
2390 int i, ret;
2391 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2392
2393 for (i = 1; i < argc; i++) {
2394 const char *arg = argv[i];
2395 if (arg[0] != '-')
2396 break;
2397 if (!strcmp(arg, "--")) {
2398 i++;
2399 break;
2400 }
2401 if (!strcmp(arg, "-y")) {
2402 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2403 continue;
2404 }
2405 if (!strcmp(arg, "-i")) {
2406 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2407 continue;
2408 }
2409 if (!strcmp(arg, "-l")) {
2410 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2411 continue;
2412 }
2413 if (!strcmp(arg, "-n")) {
2414 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2415 continue;
2416 }
2417 if (!strcmp(arg, "-a")) {
2418 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2419 continue;
2420 }
2421 if (!strcmp(arg, "-v")) {
2422 flags |= CPSI_FLAG_VERBOSE;
2423 continue;
2424 }
2425 break;
2426 }
2427 if (i + 1 >= argc) /* need at least source file and pattern */
2428 return -E_AFT_SYNTAX;
2429 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2430 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2431 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2432 com_cpsi_callback, rc4_send_result, rc4c);
2433 if (ret < 0)
2434 rc4_send_va_buffer(rc4c, "%s\n", para_strerror(-ret));
2435 return ret;
2436 }
2437
2438 void afs_stat_callback(int fd, const struct osl_object *query)
2439 {
2440 int *parser_friendly = query->data;
2441 char *buf = *parser_friendly?
2442 parser_friendly_status_items : status_items;
2443
2444 if (!buf)
2445 return;
2446 pass_buffer_as_shm(buf, strlen(buf), &fd);
2447 }
2448
2449 int send_afs_status(struct rc4_context *rc4c, int parser_friendly)
2450 {
2451 struct osl_object query = {.data = &parser_friendly,
2452 .size = sizeof(parser_friendly)};
2453
2454 return send_callback_request(afs_stat_callback, &query, rc4_send_result, rc4c);
2455 }
2456
2457 /* TODO: optionally fix problems by removing offending rows */
2458 static int check_audio_file(struct osl_row *row, void *data)
2459 {
2460 char *path;
2461 struct para_buffer *pb = data;
2462 struct stat statbuf;
2463 int ret = get_audio_file_path_of_row(row, &path);
2464 struct afs_info afsi;
2465 char *blob_name;
2466
2467 if (ret < 0)
2468 return para_printf(pb, "%s\n", para_strerror(-ret));
2469 if (stat(path, &statbuf) < 0) {
2470 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2471 if (ret < 0)
2472 return ret;
2473 } else {
2474 if (!S_ISREG(statbuf.st_mode)) {
2475 ret = para_printf(pb, "%s: not a regular file\n", path);
2476 if (ret < 0)
2477 return ret;
2478 }
2479 }
2480 ret = get_afsi_of_row(row, &afsi);
2481 if (ret < 0)
2482 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2483 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2484 if (ret < 0) {
2485 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2486 para_strerror(-ret));
2487 if (ret < 0)
2488 return ret;
2489 }
2490 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2491 if (ret < 0)
2492 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2493 para_strerror(-ret));
2494 return ret;
2495 }
2496
2497 /**
2498 * Check the audio file table for inconsistencies.
2499 *
2500 * \param fd The afs socket.
2501 * \param query Unused.
2502 *
2503 * This function always succeeds.
2504 *
2505 * \sa com_check().
2506 */
2507 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2508 {
2509 struct para_buffer pb = {
2510 .max_size = SHMMAX,
2511 .private_data = &fd,
2512 .max_size_handler = pass_buffer_as_shm
2513 };
2514 int ret = para_printf(&pb, "checking audio file table...\n");
2515
2516 if (ret < 0)
2517 return;
2518 audio_file_loop(&pb, check_audio_file);
2519 if (pb.offset)
2520 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2521 free(pb.buf);
2522 }
2523
2524 /**
2525 * Close the audio file table.
2526 *
2527 * \param flags Usual flags that are passed to osl_close_table().
2528 *
2529 * \sa osl_close_table().
2530 */
2531 static void aft_close(void)
2532 {
2533 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2534 audio_file_table = NULL;
2535 free(status_items);
2536 status_items = NULL;
2537 free(parser_friendly_status_items);
2538 parser_friendly_status_items = NULL;
2539 }
2540
2541 /**
2542 * Open the audio file table.
2543 *
2544 * \param dir The database directory.
2545 *
2546 * \return Standard.
2547 *
2548 * \sa osl_open_table().
2549 */
2550 static int aft_open(const char *dir)
2551 {
2552 int ret;
2553
2554 audio_file_table_desc.dir = dir;
2555 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2556 if (ret >= 0) {
2557 unsigned num;
2558 osl_get_num_rows(audio_file_table, &num);
2559 PARA_INFO_LOG("audio file table contains %d files\n", num);
2560 return ret;
2561 }
2562 PARA_INFO_LOG("failed to open audio file table\n");
2563 audio_file_table = NULL;
2564 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2565 return 1;
2566 return ret;
2567 }
2568
2569 static int aft_create(const char *dir)
2570 {
2571 audio_file_table_desc.dir = dir;
2572 return osl(osl_create_table(&audio_file_table_desc));
2573 }
2574
2575 static int clear_attribute(struct osl_row *row, void *data)
2576 {
2577 struct rmatt_event_data *red = data;
2578 struct afs_info afsi;
2579 struct osl_object obj;
2580 int ret = get_afsi_object_of_row(row, &obj);
2581 uint64_t mask = ~(1ULL << red->bitnum);
2582
2583 if (ret < 0)
2584 return ret;
2585 ret = load_afsi(&afsi, &obj);
2586 if (ret < 0)
2587 return ret;
2588 afsi.attributes &= mask;
2589 save_afsi(&afsi, &obj);
2590 return 1;
2591 }
2592
2593 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2594 void *data)
2595 {
2596 int ret;
2597
2598 switch(event) {
2599 case ATTRIBUTE_REMOVE: {
2600 const struct rmatt_event_data *red = data;
2601 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2602 "entries in the audio file table\n", red->name,
2603 red->bitnum);
2604 if (ret < 0)
2605 return ret;
2606 return audio_file_loop(data, clear_attribute);
2607 }
2608 default:
2609 return 1;
2610 }
2611 }
2612
2613 void aft_init(struct afs_table *t)
2614 {
2615 t->name = audio_file_table_desc.name;
2616 t->open = aft_open;
2617 t->close = aft_close;
2618 t->create = aft_create;
2619 t->event_handler = aft_event_handler;
2620 }