23b36a88e51e3469f3b4fd00770a5d4e1881872e
[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 <osl.h>
11 #include "para.h"
12 #include "error.h"
13 #include "string.h"
14 #include <sys/mman.h>
15 #include <fnmatch.h>
16 #include <sys/shm.h>
17
18 #include "afh.h"
19 #include "afs.h"
20 #include "net.h"
21 #include "vss.h"
22 #include "fd.h"
23 #include "ipc.h"
24 #include "portable_io.h"
25
26 static struct osl_table *audio_file_table;
27
28 /** The different sorting methods of the ls command. */
29 enum ls_sorting_method {
30 /** -sp (default) */
31 LS_SORT_BY_PATH,
32 /** -ss */
33 LS_SORT_BY_SCORE,
34 /** -sl */
35 LS_SORT_BY_LAST_PLAYED,
36 /** -sn */
37 LS_SORT_BY_NUM_PLAYED,
38 /** -sf */
39 LS_SORT_BY_FREQUENCY,
40 /** -sc */
41 LS_SORT_BY_CHANNELS,
42 /** -si */
43 LS_SORT_BY_IMAGE_ID,
44 /** -sy */
45 LS_SORT_BY_LYRICS_ID,
46 /** -sb */
47 LS_SORT_BY_BITRATE,
48 /** -sd */
49 LS_SORT_BY_DURATION,
50 /** -sa */
51 LS_SORT_BY_AUDIO_FORMAT,
52 /** -sh */
53 LS_SORT_BY_HASH,
54 };
55
56 /** The different listing modes of the ls command. */
57 enum ls_listing_mode {
58 /** Default listing mode. */
59 LS_MODE_SHORT,
60 /** -l or -ll */
61 LS_MODE_LONG,
62 /** -lv */
63 LS_MODE_VERBOSE,
64 /** -lm */
65 LS_MODE_MBOX,
66 /** -lc */
67 LS_MODE_CHUNKS
68 };
69
70 /** The flags accepted by the ls command. */
71 enum ls_flags {
72 /** -p */
73 LS_FLAG_FULL_PATH = 1,
74 /** -a */
75 LS_FLAG_ADMISSIBLE_ONLY = 2,
76 /** -r */
77 LS_FLAG_REVERSE = 4,
78 };
79
80 /**
81 * The size of the individual output fields of the ls command.
82 *
83 * These depend on the actual content being listed. If, for instance only files
84 * with duration less than an hour are being listed, then the duration with is
85 * made smaller because then the duration is listed as mm:ss rather than
86 * hh:mm:ss.
87 */
88 struct ls_widths {
89 /** size of the score field. */
90 unsigned short score_width;
91 /** size of the image id field. */
92 unsigned short image_id_width;
93 /** size of the lyrics id field. */
94 unsigned short lyrics_id_width;
95 /** size of the bitrate field. */
96 unsigned short bitrate_width;
97 /** size of the frequency field. */
98 unsigned short frequency_width;
99 /** size of the duration field. */
100 unsigned short duration_width;
101 /** size of the num played field. */
102 unsigned short num_played_width;
103 /** size of the amp field. */
104 unsigned short amp_width;
105 };
106
107 /** Data passed from the ls command handler to its callback function. */
108 struct ls_options {
109 /** The given command line flags. */
110 unsigned flags;
111 /** The sorting method given at the command line. */
112 enum ls_sorting_method sorting;
113 /** The given listing mode (short, long, verbose, mbox). */
114 enum ls_listing_mode mode;
115 /** The arguments passed to the ls command. */
116 char **patterns;
117 /** Number of non-option arguments. */
118 int num_patterns;
119 /** Used for long listing mode to align the output fields. */
120 struct ls_widths widths;
121 /** Size of the \a data array. */
122 uint32_t array_size;
123 /** Number of used entries in the data array. */
124 uint32_t num_matching_paths;
125 /** Array of matching entries. */
126 struct ls_data *data;
127 /** Used to sort the array. */
128 struct ls_data **data_ptr;
129 };
130
131 /**
132 * Describes the layout of the mmapped-afs info struct.
133 *
134 * \sa struct afs_info.
135 */
136 enum afsi_offsets {
137 /** Where .last_played is stored. */
138 AFSI_LAST_PLAYED_OFFSET = 0,
139 /** Storage position of the attributes bitmap. */
140 AFSI_ATTRIBUTES_OFFSET = 8,
141 /** Storage position of the .num_played field. */
142 AFSI_NUM_PLAYED_OFFSET = 16,
143 /** Storage position of the .image_id field. */
144 AFSI_IMAGE_ID_OFFSET = 20,
145 /** Storage position of the .lyrics_id field. */
146 AFSI_LYRICS_ID_OFFSET = 24,
147 /** Storage position of the .audio_format_id field. */
148 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
149 /** Storage position of the amplification field. */
150 AFSI_AMP_OFFSET = 29,
151 /** 2 bytes reserved space for future usage. */
152 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
153 /** On-disk storage space needed. */
154 AFSI_SIZE = 32
155 };
156
157 /**
158 * Convert a struct afs_info to an osl object.
159 *
160 * \param afsi Pointer to the audio file info to be converted.
161 * \param obj Result pointer.
162 *
163 * \sa load_afsi().
164 */
165 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
166 {
167 char *buf = obj->data;
168
169 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
170 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
171 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
172 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
173 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
174 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
175 afsi->audio_format_id);
176 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
177 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
178 }
179
180 /**
181 * Get the audio file selector info struct stored in an osl object.
182 *
183 * \param afsi Points to the audio_file info structure to be filled in.
184 * \param obj The osl object holding the data.
185 *
186 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
187 *
188 * \sa save_afsi().
189 */
190 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
191 {
192 char *buf = obj->data;
193 if (obj->size < AFSI_SIZE)
194 return -E_BAD_AFSI;
195 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
196 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
197 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
198 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
199 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
200 afsi->audio_format_id = read_u8(buf +
201 AFSI_AUDIO_FORMAT_ID_OFFSET);
202 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
203 return 1;
204 }
205
206 /** The columns of the audio file table. */
207 enum audio_file_table_columns {
208 /** The hash on the content of the audio file. */
209 AFTCOL_HASH,
210 /** The full path in the filesystem. */
211 AFTCOL_PATH,
212 /** The audio file selector info. */
213 AFTCOL_AFSI,
214 /** The audio format handler info. */
215 AFTCOL_AFHI,
216 /** The chunk table info and the chunk table of the audio file. */
217 AFTCOL_CHUNKS,
218 /** The number of columns of this table. */
219 NUM_AFT_COLUMNS
220 };
221
222 /**
223 * Compare two osl objects pointing to hash values.
224 *
225 * \param obj1 Pointer to the first hash object.
226 * \param obj2 Pointer to the second hash object.
227 *
228 * \return The values required for an osl compare function.
229 *
230 * \sa osl_compare_func, uint32_compare().
231 */
232 int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
233 {
234 return hash_compare((HASH_TYPE *)obj1->data, (HASH_TYPE *)obj2->data);
235 }
236
237 static struct osl_column_description aft_cols[] = {
238 [AFTCOL_HASH] = {
239 .storage_type = OSL_MAPPED_STORAGE,
240 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
241 .name = "hash",
242 .compare_function = aft_hash_compare,
243 .data_size = HASH_SIZE
244 },
245 [AFTCOL_PATH] = {
246 .storage_type = OSL_MAPPED_STORAGE,
247 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
248 .name = "path",
249 .compare_function = string_compare,
250 },
251 [AFTCOL_AFSI] = {
252 .storage_type = OSL_MAPPED_STORAGE,
253 .storage_flags = OSL_FIXED_SIZE,
254 .name = "afs_info",
255 .data_size = AFSI_SIZE
256 },
257 [AFTCOL_AFHI] = {
258 .storage_type = OSL_MAPPED_STORAGE,
259 .name = "afh_info",
260 },
261 [AFTCOL_CHUNKS] = {
262 .storage_type = OSL_DISK_STORAGE,
263 .name = "chunks",
264 }
265 };
266
267 static struct osl_table_description audio_file_table_desc = {
268 .name = "audio_files",
269 .num_columns = NUM_AFT_COLUMNS,
270 .flags = OSL_LARGE_TABLE,
271 .column_descriptions = aft_cols
272 };
273
274 /* We don't want * dot or dot-dot anywhere. */
275 static int verify_dotfile(const char *rest)
276 {
277 /*
278 * The first character was '.', but that has already been discarded, we
279 * now test the rest.
280 */
281 switch (*rest) {
282 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
283 return -1;
284 case '.': /* path start with /foo/.. */
285 if (rest[1] == '\0' || rest[1] == '/')
286 return -1; /* /foo/.. or /foo/../bar are not ok */
287 /* /foo/..bar is ok */
288 }
289 return 1;
290 }
291
292 /*
293 * We fundamentally don't like some paths: We don't want double slashes or
294 * slashes at the end that can make pathnames ambiguous.
295 */
296 static int verify_path(const char *orig_path, char **resolved_path)
297 {
298 char c;
299 size_t len;
300 char *path;
301
302 if (*orig_path != '/') /* we only accept absolute paths */
303 return -E_BAD_PATH;
304 len = strlen(orig_path);
305 *resolved_path = para_strdup(orig_path);
306 path = *resolved_path;
307 while (len > 1 && path[--len] == '/')
308 path[len] = '\0'; /* remove slash at the end */
309 c = *path++;
310 while (c) {
311 if (c == '/') {
312 c = *path++;
313 switch (c) {
314 case '/': /* double slash */
315 goto bad_path;
316 case '.':
317 if (verify_dotfile(path) < 0)
318 goto bad_path;
319 default:
320 continue;
321 }
322 }
323 c = *path++;
324 }
325 return 1;
326 bad_path:
327 free(*resolved_path);
328 return -E_BAD_PATH;
329 }
330
331 /** The on-disk layout of a afhi struct. */
332 enum afhi_offsets {
333 /** Where the number of seconds is stored. */
334 AFHI_SECONDS_TOTAL_OFFSET = 0,
335 /** Position of the bitrate. */
336 AFHI_BITRATE_OFFSET = 4,
337 /** Position of the frequency. */
338 AFHI_FREQUENCY_OFFSET = 8,
339 /** Location of the audio file header. */
340 AFHI_HEADER_OFFSET_OFFSET = 12,
341 /* Length of the audio file header. Zero means: No header. */
342 AFHI_HEADER_LEN_OFFSET = 16,
343 /** The total number of chunks (4 bytes). */
344 CHUNKS_TOTAL_OFFSET = 20,
345 /** The length of the audio file header (4 bytes). */
346 HEADER_LEN_OFFSET = 24,
347 /** The start of the audio file header (4 bytes). */
348 HEADER_OFFSET_OFFSET = 28,
349 /** The seconds part of the chunk time (4 bytes). */
350 CHUNK_TV_TV_SEC_OFFSET = 32,
351 /** The microseconds part of the chunk time (4 bytes). */
352 CHUNK_TV_TV_USEC_OFFSET = 36,
353 /** Number of channels is stored here. (1 byte) */
354 AFHI_CHANNELS_OFFSET = 40,
355 /** The tag info position. */
356 AFHI_INFO_STRING_OFFSET = 41,
357 /** Minimal on-disk size of a valid afhi struct. */
358 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
359 };
360
361 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
362 {
363 if (!afhi)
364 return 0;
365 return MIN_AFHI_SIZE
366 + strlen(afhi->techinfo)
367 + strlen(afhi->tags.artist)
368 + strlen(afhi->tags.title)
369 + strlen(afhi->tags.year)
370 + strlen(afhi->tags.album)
371 + strlen(afhi->tags.comment);
372 }
373
374 static void save_afhi(struct afh_info *afhi, char *buf)
375 {
376 char *p;
377
378 if (!afhi)
379 return;
380 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
381 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
382 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
383 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
384 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
385 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
386 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
387 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
388 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
389 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
390 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
391 p = buf + AFHI_INFO_STRING_OFFSET;
392 /* The sprintf's below are OK as our caller made sure that buf is large enough */
393 p += sprintf(p, "%s", afhi->techinfo) + 1;
394 p += sprintf(p, "%s", afhi->tags.artist) + 1;
395 p += sprintf(p, "%s", afhi->tags.title) + 1;
396 p += sprintf(p, "%s", afhi->tags.year) + 1;
397 p += sprintf(p, "%s", afhi->tags.album) + 1;
398 sprintf(p, "%s", afhi->tags.comment);
399 }
400
401 static void load_afhi(const char *buf, struct afh_info *afhi)
402 {
403 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
404 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
405 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
406 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
407 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
408 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
409 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
410 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
411 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
412 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
413 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
414 afhi->techinfo = buf + AFHI_INFO_STRING_OFFSET;
415 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
416 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
417 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
418 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
419 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
420 }
421
422 static unsigned sizeof_chunk_table(struct afh_info *afhi)
423 {
424 if (!afhi)
425 return 0;
426 return 4 * (afhi->chunks_total + 1);
427 }
428
429 static void save_chunk_table(struct afh_info *afhi, char *buf)
430 {
431 int i;
432
433 for (i = 0; i <= afhi->chunks_total; i++)
434 write_u32(buf + 4 * i, afhi->chunk_table[i]);
435 }
436
437 static void load_chunk_table(struct afh_info *afhi, char *buf)
438 {
439 int i;
440
441 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
442 for (i = 0; i <= afhi->chunks_total; i++)
443 afhi->chunk_table[i] = read_u32(buf + 4 * i);
444 }
445
446 /**
447 * Get the row of the audio file table corresponding to the given path.
448 *
449 * \param path The full path of the audio file.
450 * \param row Result pointer.
451 *
452 * \return Standard.
453 */
454 int aft_get_row_of_path(const char *path, struct osl_row **row)
455 {
456 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
457
458 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
459 }
460
461 /**
462 * Get the row of the audio file table corresponding to the given hash value.
463 *
464 * \param hash The hash value of the desired audio file.
465 * \param row Result pointer.
466 *
467 * \return Standard.
468 */
469 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
470 {
471 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
472 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
473 }
474
475 /**
476 * Get the osl object holding the audio file selector info of a row.
477 *
478 * \param row Pointer to a row in the audio file table.
479 * \param obj Result pointer.
480 *
481 * \return Standard.
482 */
483 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
484 {
485 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
486 }
487
488 /**
489 * Get the osl object holding the audio file selector info, given a path.
490 *
491 *
492 * \param path The full path of the audio file.
493 * \param obj Result pointer.
494 *
495 * \return Positive on success, negative on errors.
496 */
497 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
498 {
499 struct osl_row *row;
500 int ret = aft_get_row_of_path(path, &row);
501 if (ret < 0)
502 return ret;
503 return get_afsi_object_of_row(row, obj);
504 }
505
506 /**
507 * Get the audio file selector info, given a row of the audio file table.
508 *
509 * \param row Pointer to a row in the audio file table.
510 * \param afsi Result pointer.
511 *
512 * \return Positive on success, negative on errors.
513 */
514 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
515 {
516 struct osl_object obj;
517 int ret = get_afsi_object_of_row(row, &obj);
518 if (ret < 0)
519 return ret;
520 return load_afsi(afsi, &obj);
521 }
522
523 /**
524 * Get the audio file selector info, given the path of an audio table.
525 *
526 * \param path The full path of the audio file.
527 * \param afsi Result pointer.
528 *
529 * \return Positive on success, negative on errors.
530 */
531 int get_afsi_of_path(const char *path, struct afs_info *afsi)
532 {
533 struct osl_object obj;
534 int ret = get_afsi_object_of_path(path, &obj);
535 if (ret < 0)
536 return ret;
537 return load_afsi(afsi, &obj);
538 }
539
540 /**
541 * Get the path of an audio file, given a row of the audio file table.
542 *
543 * \param row Pointer to a row in the audio file table.
544 * \param path Result pointer.
545 *
546 * The result is a pointer to mmapped data. The caller must not attempt
547 * to free it.
548 *
549 * \return Standard.
550 */
551 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
552 {
553 struct osl_object path_obj;
554 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
555 &path_obj));
556 if (ret < 0)
557 return ret;
558 *path = path_obj.data;
559 return 1;
560 }
561
562 /**
563 * Get the object containing the hash value of an audio file, given a row.
564 *
565 * \param row Pointer to a row of the audio file table.
566 * \param obj Result pointer.
567 *
568 * \return The return value of the underlying call to osl_get_object().
569 *
570 * \sa get_hash_of_row().
571 */
572 static int get_hash_object_of_aft_row(const struct osl_row *row,
573 struct osl_object *obj)
574 {
575 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
576 }
577
578 /**
579 * Get the hash value of an audio file, given a row of the audio file table.
580 *
581 * \param row Pointer to a row of the audio file table.
582 * \param hash Result pointer.
583 *
584 * \a hash points to mapped data and must not be freed by the caller.
585 *
586 * \return The return value of the underlying call to
587 * get_hash_object_of_aft_row().
588 */
589 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
590 {
591 struct osl_object obj;
592 int ret = get_hash_object_of_aft_row(row, &obj);
593
594 if (ret < 0)
595 return ret;
596 *hash = obj.data;
597 return 1;
598 }
599
600 /**
601 * Get the audio format handler info, given a row of the audio file table.
602 *
603 * \param row Pointer to a row of the audio file table.
604 * \param afhi Result pointer.
605 *
606 * \return The return value of the underlying call to osl_get_object().
607 *
608 * \sa get_chunk_table_of_row().
609 */
610 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
611 {
612 struct osl_object obj;
613 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
614 &obj));
615 if (ret < 0)
616 return ret;
617 load_afhi(obj.data, afhi);
618 return 1;
619 }
620
621 /* returns shmid on success */
622 static int save_afd(struct audio_file_data *afd)
623 {
624 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
625 int shmid, ret = shm_new(size);
626 void *shm_afd;
627 char *buf;
628
629 if (ret < 0)
630 return ret;
631 shmid = ret;
632 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
633 if (ret < 0)
634 goto err;
635 *(struct audio_file_data *)shm_afd = *afd;
636 buf = shm_afd;
637 buf += sizeof(*afd);
638 save_chunk_table(&afd->afhi, buf);
639 shm_detach(shm_afd);
640 return shmid;
641 err:
642 shm_destroy(shmid);
643 return ret;
644 }
645
646 int load_afd(int shmid, struct audio_file_data *afd)
647 {
648 void *shm_afd;
649 char *buf;
650 int ret;
651
652 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
653 if (ret < 0)
654 return ret;
655 *afd = *(struct audio_file_data *)shm_afd;
656 buf = shm_afd;
657 buf += sizeof(*afd);
658 load_chunk_table(&afd->afhi, buf);
659 shm_detach(shm_afd);
660 return 1;
661 }
662
663 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
664 time_t current_time, enum ls_listing_mode lm)
665 {
666 struct tm t;
667
668 if (!localtime_r((time_t *)seconds, &t))
669 return -E_LOCALTIME;
670 if (lm == LS_MODE_MBOX) {
671 if (!strftime(buf, size, "%c", &t))
672 return -E_STRFTIME;
673 return 1;
674 }
675 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
676 if (!strftime(buf, size, "%b %e %k:%M", &t))
677 return -E_STRFTIME;
678 return 1;
679 }
680 if (!strftime(buf, size, "%b %e %Y", &t))
681 return -E_STRFTIME;
682 return 1;
683 }
684
685 /** Compute the number of (decimal) digits of a number. */
686 #define GET_NUM_DIGITS(x, num) { \
687 typeof((x)) _tmp = PARA_ABS(x); \
688 *num = 1; \
689 if ((_tmp)) \
690 while ((_tmp) > 9) { \
691 (_tmp) /= 10; \
692 (*num)++; \
693 } \
694 }
695
696 static short unsigned get_duration_width(int seconds)
697 {
698 short unsigned width;
699 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
700
701 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
702 return 4 + (mins > 9);
703 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
704 GET_NUM_DIGITS(hours, &width);
705 return width + 6;
706 }
707
708 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
709 {
710 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
711 short unsigned max_width;
712
713 if (!hours) { /* m:ss or mm:ss */
714 max_width = opts->mode == LS_MODE_LONG?
715 opts->widths.duration_width : 4;
716 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
717 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
718 max_width = opts->mode == LS_MODE_LONG?
719 opts->widths.duration_width : 7;
720 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
721 seconds % 60);
722 }
723 }
724
725 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
726 {
727 char *att_text, *att_lines;
728
729 get_attribute_text(&afsi->attributes, " ", &att_text);
730 if (!att_text)
731 return para_strdup(att_bitmap);
732 att_lines = make_message("%s: %s\n%s: %s",
733 status_item_list[SI_ATTRIBUTES_BITMAP], att_bitmap,
734 status_item_list[SI_ATTRIBUTES_TXT], att_text);
735 free(att_text);
736 return att_lines;
737 }
738
739 static char *make_lyrics_lines(struct afs_info *afsi)
740 {
741 char *lyrics_name;
742
743 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
744 return make_message("%s: %u\n%s: %s\n",
745 status_item_list[SI_LYRICS_ID], afsi->lyrics_id,
746 status_item_list[SI_LYRICS_NAME], lyrics_name?
747 lyrics_name : "(none)");
748 }
749
750 static char *make_image_lines(struct afs_info *afsi)
751 {
752 char *image_name;
753 img_get_name_by_id(afsi->image_id, &image_name);
754 return make_message("%s: %u\n%s: %s\n",
755 status_item_list[SI_IMAGE_ID], afsi->image_id,
756 status_item_list[SI_IMAGE_NAME], image_name?
757 image_name : "(none)");
758 }
759
760 static char *make_filename_lines(const char *path, unsigned flags)
761 {
762 char *dirname, *ret;
763 const char *basename;
764
765 if (!(flags & LS_FLAG_FULL_PATH))
766 return make_message("%s: %s\n",
767 status_item_list[SI_BASENAME], path);
768 basename = para_basename(path),
769 dirname = para_dirname(path);
770 ret = make_message("%s: %s\n%s: %s\n%s: %s\n",
771 status_item_list[SI_PATH], path,
772 status_item_list[SI_DIRECTORY], dirname? dirname : "?",
773 status_item_list[SI_BASENAME], basename? basename : "?");
774 free(dirname);
775 return ret;
776 }
777
778 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
779 {
780 struct osl_object chunk_table_obj;
781 struct osl_row *aft_row;
782 int ret, i;
783 char *buf;
784
785 ret = aft_get_row_of_hash(d->hash, &aft_row);
786 if (ret < 0)
787 return ret;
788 ret = osl_open_disk_object(audio_file_table, aft_row,
789 AFTCOL_CHUNKS, &chunk_table_obj);
790 if (ret < 0)
791 return ret;
792 ret = para_printf(b, "%s\n"
793 "chunk_time: %lu:%lu\nchunk_offsets: ",
794 d->path,
795 (long unsigned) d->afhi.chunk_tv.tv_sec,
796 (long unsigned) d->afhi.chunk_tv.tv_usec
797 );
798 if (ret < 0)
799 goto out;
800 buf = chunk_table_obj.data;
801 for (i = 0; i <= d->afhi.chunks_total; i++) {
802 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
803 if (ret < 0)
804 goto out;
805 }
806 ret = para_printf(b, "\n");
807 out:
808 osl_close_disk_object(&chunk_table_obj);
809 return ret;
810 }
811
812 static int print_list_item(struct ls_data *d, struct ls_options *opts,
813 struct para_buffer *b, time_t current_time)
814 {
815 int ret;
816 char att_buf[65];
817 char last_played_time[30];
818 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
819 char score_buf[30] = "";
820 struct afs_info *afsi = &d->afsi;
821 struct afh_info *afhi = &d->afhi;
822 struct ls_widths *w = &opts->widths;
823 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
824 char asc_hash[2 * HASH_SIZE + 1];
825 char *att_lines, *lyrics_lines, *image_lines, *filename_lines;
826
827 if (opts->mode == LS_MODE_SHORT) {
828 ret = para_printf(b, "%s\n", d->path);
829 goto out;
830 }
831 if (opts->mode == LS_MODE_CHUNKS) {
832 ret = print_chunk_table(d, b);
833 goto out;
834 }
835 get_attribute_bitmap(&afsi->attributes, att_buf);
836 ret = get_local_time(&afsi->last_played, last_played_time,
837 sizeof(last_played_time), current_time, opts->mode);
838 if (ret < 0)
839 goto out;
840 get_duration_buf(afhi->seconds_total, duration_buf, opts);
841 if (have_score) {
842 if (opts->mode == LS_MODE_LONG)
843 sprintf(score_buf, "%*li ", w->score_width, d->score);
844 else
845 sprintf(score_buf, "%li ", d->score);
846 }
847
848 if (opts->mode == LS_MODE_LONG) {
849 ret = para_printf(b,
850 "%s" /* score */
851 "%s " /* attributes */
852 "%*u " /* amp */
853 "%*d " /* image_id */
854 "%*d " /* lyrics_id */
855 "%*d " /* bitrate */
856 "%s " /* audio format */
857 "%*d " /* frequency */
858 "%d " /* channels */
859 "%s " /* duration */
860 "%*d " /* num_played */
861 "%s " /* last_played */
862 "%s\n", /* path */
863 score_buf,
864 att_buf,
865 w->amp_width, afsi->amp,
866 w->image_id_width, afsi->image_id,
867 w->lyrics_id_width, afsi->lyrics_id,
868 w->bitrate_width, afhi->bitrate,
869 audio_format_name(afsi->audio_format_id),
870 w->frequency_width, afhi->frequency,
871 afhi->channels,
872 duration_buf,
873 w->num_played_width, afsi->num_played,
874 last_played_time,
875 d->path
876 );
877 goto out;
878 }
879 hash_to_asc(d->hash, asc_hash);
880 att_lines = make_attribute_lines(att_buf, afsi);
881 lyrics_lines = make_lyrics_lines(afsi);
882 image_lines = make_image_lines(afsi);
883 filename_lines = make_filename_lines(d->path, opts->flags);
884 if (opts->mode == LS_MODE_MBOX) {
885 const char *bn = para_basename(d->path);
886 ret = para_printf(b,
887 "From foo@localhost %s\n"
888 "Received: from\nTo: bar\nFrom: a\n"
889 "Subject: %s\n\n",
890 last_played_time,
891 bn? bn : "?");
892 if (ret < 0)
893 goto out;
894 }
895 ret = para_printf(b,
896 "%s" /* filename stuff */
897 "%s%s%s%s" /* score */
898 "%s\n" /* attributes */
899 "%s: %s\n" /* hash */
900 "%s" /* image id, image name */
901 "%s" /* lyrics */
902 "%s: %dkbit/s\n" /* bitrate */
903 "%s: %s\n" /* format */
904 "%s: %dHz\n" /* frequency */
905 "%s: %d\n" /* channels */
906 "%s: %s\n" /* duration */
907 "%s: %lu\n" /* seconds total */
908 "%s: %s\n" /* last played time */
909 "%s: %d\n" /* num_played */
910 "%s: %u\n" /* amplification */
911 "%s: %lu\n" /* chunk time */
912 "%s: %lu\n" /* num chunks */
913 "%s: %s\n" /* techinfo */
914 "%s: %s\n" /* artist */
915 "%s: %s\n" /* title */
916 "%s: %s\n" /* year */
917 "%s: %s\n" /* album */
918 "%s: %s\n", /* comment */
919 filename_lines,
920 have_score? status_item_list[SI_SCORE] : "",
921 have_score? ": " : "",
922 score_buf,
923 have_score? "\n" : "",
924 att_lines,
925 status_item_list[SI_HASH], asc_hash,
926 image_lines,
927 lyrics_lines,
928 status_item_list[SI_BITRATE], afhi->bitrate,
929 status_item_list[SI_FORMAT], audio_format_name(afsi->audio_format_id),
930 status_item_list[SI_FREQUENCY], afhi->frequency,
931 status_item_list[SI_CHANNELS], afhi->channels,
932 status_item_list[SI_DURATION], duration_buf,
933 status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
934 status_item_list[SI_LAST_PLAYED], last_played_time,
935 status_item_list[SI_NUM_PLAYED], afsi->num_played,
936 status_item_list[SI_AMPLIFICATION], afsi->amp,
937 status_item_list[SI_CHUNK_TIME], tv2ms(&afhi->chunk_tv),
938 status_item_list[SI_NUM_CHUNKS], afhi->chunks_total,
939 status_item_list[SI_TECHINFO], afhi->techinfo,
940 status_item_list[SI_ARTIST], afhi->tags.artist,
941 status_item_list[SI_TITLE], afhi->tags.title,
942 status_item_list[SI_YEAR], afhi->tags.year,
943 status_item_list[SI_ALBUM], afhi->tags.album,
944 status_item_list[SI_COMMENT], afhi->tags.comment
945 );
946 if (ret < 0)
947 goto out;
948 if (opts->mode == LS_MODE_MBOX) {
949 struct osl_object lyrics_def;
950 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
951 if (lyrics_def.data) {
952 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
953 (char *)lyrics_def.data);
954 osl_close_disk_object(&lyrics_def);
955 }
956 }
957 free(att_lines);
958 free(lyrics_lines);
959 free(image_lines);
960 free(filename_lines);
961 out:
962 return ret;
963 }
964
965 /**
966 * Write a list of audio-file related status items with empty values.
967 *
968 * \param buf Result pointer.
969 *
970 * This is used by vss when currently no audio file is open.
971 */
972 void make_empty_status_items(char *buf)
973 {
974 sprintf(buf,
975 "%s: \n" /* path */
976 "%s: \n" /* dirname */
977 "%s: \n" /* basename */
978 "%s: \n" /* score */
979 "%s: \n" /* attributes bitmap */
980 "%s: \n" /* attributes txt */
981 "%s: \n" /* hash */
982 "%s: \n" /* image id */
983 "%s: \n" /* image name */
984 "%s: \n" /* lyrics id */
985 "%s: \n" /* lyrics name */
986 "%s: \n" /* bitrate */
987 "%s: \n" /* format */
988 "%s: \n" /* frequency */
989 "%s: \n" /* channels */
990 "%s: \n" /* duration */
991 "%s: \n" /* seconds total */
992 "%s: \n" /* num played */
993 "%s: \n" /* last played */
994 "%s: \n" /* techinfo */
995 "%s: \n" /* artist */
996 "%s: \n" /* title */
997 "%s: \n" /* year */
998 "%s: \n" /* album */
999 "%s: \n" /* comment */
1000 "%s: \n" /* amplification */
1001 ,
1002 status_item_list[SI_PATH],
1003 status_item_list[SI_DIRECTORY],
1004 status_item_list[SI_BASENAME],
1005 status_item_list[SI_SCORE],
1006 status_item_list[SI_ATTRIBUTES_BITMAP],
1007 status_item_list[SI_ATTRIBUTES_TXT],
1008 status_item_list[SI_HASH],
1009 status_item_list[SI_IMAGE_ID],
1010 status_item_list[SI_IMAGE_NAME],
1011 status_item_list[SI_LYRICS_ID],
1012 status_item_list[SI_LYRICS_NAME],
1013 status_item_list[SI_BITRATE],
1014 status_item_list[SI_FORMAT],
1015 status_item_list[SI_FREQUENCY],
1016 status_item_list[SI_CHANNELS],
1017 status_item_list[SI_DURATION],
1018 status_item_list[SI_SECONDS_TOTAL],
1019 status_item_list[SI_NUM_PLAYED],
1020 status_item_list[SI_LAST_PLAYED],
1021 status_item_list[SI_TECHINFO],
1022 status_item_list[SI_ARTIST],
1023 status_item_list[SI_TITLE],
1024 status_item_list[SI_YEAR],
1025 status_item_list[SI_ALBUM],
1026 status_item_list[SI_COMMENT],
1027 status_item_list[SI_AMPLIFICATION]
1028 );
1029 }
1030
1031 static int make_status_items(struct audio_file_data *afd,
1032 struct afs_info *afsi, char *path, long score,
1033 HASH_TYPE *hash)
1034 {
1035 struct ls_data d = {
1036 .afhi = afd->afhi,
1037 .afsi = *afsi,
1038 .path = path,
1039 .score = score,
1040 .hash = hash
1041 };
1042 struct ls_options opts = {
1043 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1044 .mode = LS_MODE_VERBOSE,
1045 };
1046 struct para_buffer pb = {.max_size = VERBOSE_LS_OUTPUT_SIZE - 1};
1047 time_t current_time;
1048 int ret;
1049
1050 time(&current_time);
1051 ret = print_list_item(&d, &opts, &pb, current_time);
1052 if (ret < 0)
1053 goto out;
1054 strncpy(afd->verbose_ls_output, pb.buf, VERBOSE_LS_OUTPUT_SIZE);
1055 afd->verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE - 1] = '\0';
1056 out:
1057 free(pb.buf);
1058 return ret;
1059 }
1060
1061 /**
1062 * Mmap the given audio file and update statistics.
1063 *
1064 * \param aft_row Determines the audio file to be opened and updated.
1065 * \param score The score of the audio file.
1066 * \param afd Result pointer.
1067 *
1068 * On success, the numplayed field of the audio file selector info is increased
1069 * and the lastplayed time is set to the current time. Finally, the score of
1070 * the audio file is updated.
1071 *
1072 * \return Positive shmid on success, negative on errors.
1073 */
1074 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1075 struct audio_file_data *afd)
1076 {
1077 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1078 struct osl_object afsi_obj;
1079 struct afs_info old_afsi, new_afsi;
1080 int ret = get_hash_of_row(aft_row, &aft_hash);
1081 struct afsi_change_event_data aced;
1082 struct osl_object map, chunk_table_obj;
1083 char *path;
1084
1085 if (ret < 0)
1086 return ret;
1087 ret = get_audio_file_path_of_row(aft_row, &path);
1088 if (ret < 0)
1089 return ret;
1090 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1091 if (ret < 0)
1092 return ret;
1093 ret = load_afsi(&old_afsi, &afsi_obj);
1094 if (ret < 0)
1095 return ret;
1096 ret = get_afhi_of_row(aft_row, &afd->afhi);
1097 if (ret < 0)
1098 return ret;
1099 afd->afhi.chunk_table = NULL;
1100 ret = osl_open_disk_object(audio_file_table, aft_row,
1101 AFTCOL_CHUNKS, &chunk_table_obj);
1102 if (ret < 0)
1103 goto err;
1104 ret = mmap_full_file(path, O_RDONLY, &map.data,
1105 &map.size, &afd->fd);
1106 if (ret < 0)
1107 goto err;
1108 hash_function(map.data, map.size, file_hash);
1109 ret = hash_compare(file_hash, aft_hash);
1110 para_munmap(map.data, map.size);
1111 if (ret) {
1112 ret = -E_HASH_MISMATCH;
1113 goto err;
1114 }
1115 new_afsi = old_afsi;
1116 new_afsi.num_played++;
1117 new_afsi.last_played = time(NULL);
1118 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1119
1120 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1121 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1122 if (ret < 0)
1123 goto err;
1124 aced.aft_row = aft_row;
1125 aced.old_afsi = &old_afsi;
1126 afs_event(AFSI_CHANGE, NULL, &aced);
1127 ret = save_afd(afd);
1128 err:
1129 free(afd->afhi.chunk_table);
1130 osl_close_disk_object(&chunk_table_obj);
1131 return ret;
1132 }
1133
1134 static int ls_audio_format_compare(const void *a, const void *b)
1135 {
1136 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1137 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1138 }
1139
1140 static int ls_duration_compare(const void *a, const void *b)
1141 {
1142 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1143 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1144 }
1145
1146 static int ls_bitrate_compare(const void *a, const void *b)
1147 {
1148 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1149 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1150 }
1151
1152 static int ls_lyrics_id_compare(const void *a, const void *b)
1153 {
1154 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1155 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1156 }
1157
1158 static int ls_image_id_compare(const void *a, const void *b)
1159 {
1160 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1161 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1162 }
1163
1164 static int ls_channels_compare(const void *a, const void *b)
1165 {
1166 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1167 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1168 }
1169
1170 static int ls_frequency_compare(const void *a, const void *b)
1171 {
1172 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1173 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1174 }
1175
1176 static int ls_num_played_compare(const void *a, const void *b)
1177 {
1178 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1179 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1180 }
1181
1182 static int ls_last_played_compare(const void *a, const void *b)
1183 {
1184 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1185 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1186 }
1187
1188 static int ls_score_compare(const void *a, const void *b)
1189 {
1190 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1191 return NUM_COMPARE(d1->score, d2->score);
1192 }
1193
1194 static int ls_path_compare(const void *a, const void *b)
1195 {
1196 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1197 return strcmp(d1->path, d2->path);
1198 }
1199
1200 static int sort_matching_paths(struct ls_options *options)
1201 {
1202 size_t nmemb = options->num_matching_paths;
1203 size_t size = sizeof(*options->data_ptr);
1204 int (*compar)(const void *, const void *);
1205 int i;
1206
1207 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1208 for (i = 0; i < nmemb; i++)
1209 options->data_ptr[i] = options->data + i;
1210
1211 /* In these cases the array is already sorted */
1212 if (options->sorting == LS_SORT_BY_PATH
1213 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1214 && (options->flags & LS_FLAG_FULL_PATH))
1215 return 1;
1216 if (options->sorting == LS_SORT_BY_SCORE &&
1217 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1218 return 1;
1219
1220 switch (options->sorting) {
1221 case LS_SORT_BY_PATH:
1222 compar = ls_path_compare; break;
1223 case LS_SORT_BY_SCORE:
1224 compar = ls_score_compare; break;
1225 case LS_SORT_BY_LAST_PLAYED:
1226 compar = ls_last_played_compare; break;
1227 case LS_SORT_BY_NUM_PLAYED:
1228 compar = ls_num_played_compare; break;
1229 case LS_SORT_BY_FREQUENCY:
1230 compar = ls_frequency_compare; break;
1231 case LS_SORT_BY_CHANNELS:
1232 compar = ls_channels_compare; break;
1233 case LS_SORT_BY_IMAGE_ID:
1234 compar = ls_image_id_compare; break;
1235 case LS_SORT_BY_LYRICS_ID:
1236 compar = ls_lyrics_id_compare; break;
1237 case LS_SORT_BY_BITRATE:
1238 compar = ls_bitrate_compare; break;
1239 case LS_SORT_BY_DURATION:
1240 compar = ls_duration_compare; break;
1241 case LS_SORT_BY_AUDIO_FORMAT:
1242 compar = ls_audio_format_compare; break;
1243 default:
1244 return -E_BAD_SORT;
1245 }
1246 qsort(options->data_ptr, nmemb, size, compar);
1247 return 1;
1248 }
1249
1250 /* row is either an aft_row or a row of the score table */
1251 /* TODO: Only compute widths if we need them */
1252 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1253 {
1254 int ret, i;
1255 struct ls_options *options = ls_opts;
1256 struct ls_data *d;
1257 struct ls_widths *w;
1258 unsigned short num_digits;
1259 unsigned tmp;
1260 struct osl_row *aft_row;
1261 long score;
1262 char *path;
1263
1264 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1265 ret = get_score_and_aft_row(row, &score, &aft_row);
1266 if (ret < 0)
1267 return ret;
1268 } else
1269 aft_row = row;
1270 ret = get_audio_file_path_of_row(aft_row, &path);
1271 if (ret < 0)
1272 return ret;
1273 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1274 char *p = strrchr(path, '/');
1275 if (p)
1276 path = p + 1;
1277 }
1278 if (options->num_patterns) {
1279 for (i = 0; i < options->num_patterns; i++) {
1280 ret = fnmatch(options->patterns[i], path, 0);
1281 if (!ret)
1282 break;
1283 if (ret == FNM_NOMATCH)
1284 continue;
1285 return -E_FNMATCH;
1286 }
1287 if (i >= options->num_patterns) /* no match */
1288 return 1;
1289 }
1290 tmp = options->num_matching_paths++;
1291 if (options->num_matching_paths > options->array_size) {
1292 options->array_size++;
1293 options->array_size *= 2;
1294 options->data = para_realloc(options->data, options->array_size
1295 * sizeof(*options->data));
1296 }
1297 d = options->data + tmp;
1298 ret = get_afsi_of_row(aft_row, &d->afsi);
1299 if (ret < 0)
1300 return ret;
1301 ret = get_afhi_of_row(aft_row, &d->afhi);
1302 if (ret < 0)
1303 return ret;
1304 d->path = path;
1305 ret = get_hash_of_row(aft_row, &d->hash);
1306 if (ret < 0)
1307 goto err;
1308 w = &options->widths;
1309 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1310 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1311 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1312 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1313 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1314 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1315 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1316 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1317 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1318 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1319 /* get the number of chars to print this amount of time */
1320 num_digits = get_duration_width(d->afhi.seconds_total);
1321 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1322 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1323 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1324 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1325 GET_NUM_DIGITS(score, &num_digits);
1326 num_digits++; /* add one for the sign (space or "-") */
1327 w->score_width = PARA_MAX(w->score_width, num_digits);
1328 d->score = score;
1329 }
1330 return 1;
1331 err:
1332 return ret;
1333 }
1334
1335 static void com_ls_callback(int fd, const struct osl_object *query)
1336 {
1337 struct ls_options *opts = query->data;
1338 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1339 struct para_buffer b = {.max_size = SHMMAX,
1340 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1341 int i = 0, ret;
1342 time_t current_time;
1343
1344
1345 if (opts->num_patterns) {
1346 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1347 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1348 opts->patterns[i] = p;
1349 p += strlen(p) + 1;
1350 }
1351 } else
1352 opts->patterns = NULL;
1353 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1354 ret = admissible_file_loop(opts, prepare_ls_row);
1355 else
1356 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1357 prepare_ls_row));
1358 if (ret < 0)
1359 goto out;
1360 if (!opts->num_matching_paths)
1361 goto out;
1362 ret = sort_matching_paths(opts);
1363 if (ret < 0)
1364 goto out;
1365 time(&current_time);
1366 if (opts->flags & LS_FLAG_REVERSE)
1367 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1368 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1369 if (ret < 0)
1370 goto out;
1371 }
1372 else
1373 for (i = 0; i < opts->num_matching_paths; i++) {
1374 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1375 if (ret < 0)
1376 goto out;
1377 }
1378 out:
1379 if (b.offset)
1380 pass_buffer_as_shm(b.buf, b.offset, &fd);
1381 free(b.buf);
1382 free(opts->data);
1383 free(opts->data_ptr);
1384 free(opts->patterns);
1385 }
1386
1387 /*
1388 * TODO: flags -h (sort by hash)
1389 */
1390 int com_ls(int fd, int argc, char * const * const argv)
1391 {
1392 int i, ret;
1393 unsigned flags = 0;
1394 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1395 enum ls_listing_mode mode = LS_MODE_SHORT;
1396 struct ls_options opts = {.patterns = NULL};
1397 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1398
1399 for (i = 1; i < argc; i++) {
1400 const char *arg = argv[i];
1401 if (arg[0] != '-')
1402 break;
1403 if (!strcmp(arg, "--")) {
1404 i++;
1405 break;
1406 }
1407 if (!strncmp(arg, "-l", 2)) {
1408 if (!*(arg + 2)) {
1409 mode = LS_MODE_LONG;
1410 continue;
1411 }
1412 if (*(arg + 3))
1413 return -E_AFT_SYNTAX;
1414 switch(*(arg + 2)) {
1415 case 's':
1416 mode = LS_MODE_SHORT;
1417 continue;
1418 case 'l':
1419 mode = LS_MODE_LONG;
1420 continue;
1421 case 'v':
1422 mode = LS_MODE_VERBOSE;
1423 continue;
1424 case 'm':
1425 mode = LS_MODE_MBOX;
1426 continue;
1427 case 'c':
1428 mode = LS_MODE_CHUNKS;
1429 continue;
1430 default:
1431 return -E_AFT_SYNTAX;
1432 }
1433 }
1434 if (!strcmp(arg, "-p")) {
1435 flags |= LS_FLAG_FULL_PATH;
1436 continue;
1437 }
1438 if (!strcmp(arg, "-a")) {
1439 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1440 continue;
1441 }
1442 if (!strcmp(arg, "-r")) {
1443 flags |= LS_FLAG_REVERSE;
1444 continue;
1445 }
1446 if (!strncmp(arg, "-s", 2)) {
1447 if (!*(arg + 2) || *(arg + 3))
1448 return -E_AFT_SYNTAX;
1449 switch(*(arg + 2)) {
1450 case 'p':
1451 sort = LS_SORT_BY_PATH;
1452 continue;
1453 case 's': /* -ss implies -a */
1454 sort = LS_SORT_BY_SCORE;
1455 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1456 continue;
1457 case 'l':
1458 sort = LS_SORT_BY_LAST_PLAYED;
1459 continue;
1460 case 'n':
1461 sort = LS_SORT_BY_NUM_PLAYED;
1462 continue;
1463 case 'f':
1464 sort = LS_SORT_BY_FREQUENCY;
1465 continue;
1466 case 'c':
1467 sort = LS_SORT_BY_CHANNELS;
1468 continue;
1469 case 'i':
1470 sort = LS_SORT_BY_IMAGE_ID;
1471 continue;
1472 case 'y':
1473 sort = LS_SORT_BY_LYRICS_ID;
1474 continue;
1475 case 'b':
1476 sort = LS_SORT_BY_BITRATE;
1477 continue;
1478 case 'd':
1479 sort = LS_SORT_BY_DURATION;
1480 continue;
1481 case 'a':
1482 sort = LS_SORT_BY_AUDIO_FORMAT;
1483 continue;
1484 default:
1485 return -E_AFT_SYNTAX;
1486 }
1487 }
1488 return -E_AFT_SYNTAX;
1489 }
1490 opts.flags = flags;
1491 opts.sorting = sort;
1492 opts.mode = mode;
1493 opts.num_patterns = argc - i;
1494 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1495 argv + i, com_ls_callback, send_result, &fd);
1496 return ret;
1497 }
1498
1499 /**
1500 * Call the given function for each file in the audio file table.
1501 *
1502 * \param private_data An arbitrary data pointer, passed to \a func.
1503 * \param func The custom function to be called.
1504 *
1505 * \return Standard.
1506 */
1507 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1508 {
1509 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1510 func));
1511 }
1512
1513 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1514 {
1515 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1516 struct osl_row *row;
1517
1518 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1519 return row;
1520 }
1521
1522 /** The format of the data stored by save_audio_file_data(). */
1523 enum com_add_buffer_offsets {
1524 /** afhi (if present) starts here. */
1525 CAB_AFHI_OFFSET_POS = 0,
1526 /** Start of the chunk table (if present). */
1527 CAB_CHUNKS_OFFSET_POS = 2,
1528 /** Audio format id. */
1529 CAB_AUDIO_FORMAT_OFFSET = 4,
1530 /** Flags given to the add command. */
1531 CAB_FLAGS_OFFSET = 5,
1532 /** The hash of the audio file being added. */
1533 CAB_HASH_OFFSET = 9,
1534 /** Start of the path of the audio file. */
1535 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1536 };
1537
1538 /*
1539 * Store the given data to a single buffer. Doesn't need the audio file selector
1540 * info struct as the server knows it as well.
1541 *
1542 * It's OK to call this with afhi == NULL. In this case, the audio format
1543 * handler info won't be stored in the buffer.
1544 */
1545 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1546 struct afh_info *afhi, uint32_t flags,
1547 uint8_t audio_format_num, struct osl_object *obj)
1548 {
1549 size_t path_len = strlen(path) + 1;
1550 size_t afhi_size = sizeof_afhi_buf(afhi);
1551 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1552 + sizeof_chunk_table(afhi);
1553 char *buf = para_malloc(size);
1554 uint16_t pos;
1555
1556 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1557 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1558
1559 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1560 strcpy(buf + CAB_PATH_OFFSET, path);
1561
1562 pos = CAB_PATH_OFFSET + path_len;
1563 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1564 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1565 pos + afhi_size - 1);
1566 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1567 save_afhi(afhi, buf + pos);
1568
1569 pos += afhi_size;
1570 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1571 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1572 if (afhi)
1573 save_chunk_table(afhi, buf + pos);
1574 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1575 obj->data = buf;
1576 obj->size = size;
1577 }
1578
1579 /*
1580
1581 Overview of the add command.
1582
1583 Input: What was passed to the callback by the command handler.
1584 ~~~~~~
1585 HS: Hash sister. Whether an audio file with identical hash
1586 already exists in the osl database.
1587
1588 PB: Path brother. Whether a file with the given path exists
1589 in the table.
1590
1591 F: Force flag given. Whether add was called with -f.
1592
1593 output: Action performed by the callback.
1594 ~~~~~~~
1595 AFHI: Whether afhi and chunk table are computed and sent.
1596 ACTION: Table modifications to be done by the callback.
1597
1598 +----+----+---+------+---------------------------------------------------+
1599 | HS | PB | F | AFHI | ACTION
1600 +----+----+---+------+---------------------------------------------------+
1601 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1602 | | update path, keep afsi
1603 +----+----+---+------+---------------------------------------------------+
1604 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1605 | | otherwise: remove PB, HS: update path, keep afhi,
1606 | | afsi.
1607 +----+----+---+------+---------------------------------------------------+
1608 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1609 | | HS, keep afsi
1610 +----+----+---+------+---------------------------------------------------+
1611 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1612 +----+----+---+------+---------------------------------------------------+
1613 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1614 | | (force has no effect)
1615 +----+----+---+------+---------------------------------------------------+
1616 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1617 +----+----+---+------+---------------------------------------------------+
1618 | N | N | Y | Y | (new file) create new entry (force has no effect)
1619 +----+----+---+------+---------------------------------------------------+
1620 | N | N | N | Y | (new file) create new entry
1621 +----+----+---+------+---------------------------------------------------+
1622
1623 Notes:
1624
1625 afhi <=> force or no HS
1626 F => AFHI
1627
1628 */
1629
1630 /** Flags passed to the add command. */
1631 enum com_add_flags {
1632 /** Skip paths that exist already. */
1633 ADD_FLAG_LAZY = 1,
1634 /** Force adding. */
1635 ADD_FLAG_FORCE = 2,
1636 /** Print what is being done. */
1637 ADD_FLAG_VERBOSE = 4,
1638 /** Try to add files with unknown suffixes. */
1639 ADD_FLAG_ALL = 8,
1640 };
1641
1642 static void com_add_callback(int fd, const struct osl_object *query)
1643 {
1644 char *buf = query->data, *path;
1645 struct osl_row *pb, *aft_row;
1646 struct osl_row *hs;
1647 struct osl_object objs[NUM_AFT_COLUMNS];
1648 HASH_TYPE *hash;
1649 char asc[2 * HASH_SIZE + 1];
1650 int ret;
1651 char afsi_buf[AFSI_SIZE];
1652 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1653 struct afs_info default_afsi = {.last_played = 0};
1654 struct para_buffer msg = {.max_size = SHMMAX,
1655 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1656 uint16_t afhi_offset, chunks_offset;
1657
1658 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1659 hash_to_asc(hash, asc);;
1660 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1661 objs[AFTCOL_HASH].size = HASH_SIZE;
1662
1663 path = buf + CAB_PATH_OFFSET;
1664 objs[AFTCOL_PATH].data = path;
1665 objs[AFTCOL_PATH].size = strlen(path) + 1;
1666
1667 PARA_INFO_LOG("request to add %s\n", path);
1668 hs = find_hash_sister(hash);
1669 ret = aft_get_row_of_path(path, &pb);
1670 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1671 goto out;
1672 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1673 if (flags & ADD_FLAG_VERBOSE)
1674 ret = para_printf(&msg, "ignoring duplicate\n");
1675 else
1676 ret = 1;
1677 goto out;
1678 }
1679 if (hs && hs != pb) {
1680 struct osl_object obj;
1681 if (pb) { /* hs trumps pb, remove pb */
1682 if (flags & ADD_FLAG_VERBOSE) {
1683 ret = para_printf(&msg, "removing path brother\n");
1684 if (ret < 0)
1685 goto out;
1686 }
1687 ret = osl(osl_del_row(audio_file_table, pb));
1688 if (ret < 0)
1689 goto out;
1690 pb = NULL;
1691 }
1692 /* file rename, update hs' path */
1693 if (flags & ADD_FLAG_VERBOSE) {
1694 ret = osl(osl_get_object(audio_file_table, hs,
1695 AFTCOL_PATH, &obj));
1696 if (ret < 0)
1697 goto out;
1698 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1699 if (ret < 0)
1700 goto out;
1701 }
1702 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1703 &objs[AFTCOL_PATH]));
1704 if (ret < 0)
1705 goto out;
1706 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1707 if (!(flags & ADD_FLAG_FORCE))
1708 goto out;
1709 }
1710 /* no hs or force mode, child must have sent afhi */
1711 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1712 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1713
1714 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1715 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1716 ret = -E_NO_AFHI;
1717 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1718 goto out;
1719 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1720 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1721 if (pb && !hs) { /* update pb's hash */
1722 char old_asc[2 * HASH_SIZE + 1];
1723 HASH_TYPE *old_hash;
1724 ret = get_hash_of_row(pb, &old_hash);
1725 if (ret < 0)
1726 goto out;
1727 hash_to_asc(old_hash, old_asc);
1728 if (flags & ADD_FLAG_VERBOSE) {
1729 ret = para_printf(&msg, "file change: %s -> %s\n",
1730 old_asc, asc);
1731 if (ret < 0)
1732 goto out;
1733 }
1734 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1735 &objs[AFTCOL_HASH]);
1736 if (ret < 0)
1737 goto out;
1738 }
1739 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1740 struct osl_row *row = pb? pb : hs;
1741 /* update afhi and chunk_table */
1742 if (flags & ADD_FLAG_VERBOSE) {
1743 ret = para_printf(&msg, "updating afhi and chunk table\n");
1744 if (ret < 0)
1745 goto out;
1746 }
1747 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1748 &objs[AFTCOL_AFHI]));
1749 if (ret < 0)
1750 goto out;
1751 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1752 &objs[AFTCOL_CHUNKS]));
1753 if (ret < 0)
1754 goto out;
1755 afs_event(AFHI_CHANGE, &msg, row);
1756 goto out;
1757 }
1758 /* new entry, use default afsi */
1759 if (flags & ADD_FLAG_VERBOSE) {
1760 ret = para_printf(&msg, "new file\n");
1761 if (ret < 0)
1762 goto out;
1763 }
1764 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1765 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1766
1767 objs[AFTCOL_AFSI].data = &afsi_buf;
1768 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1769 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1770 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1771 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1772 out:
1773 if (ret < 0)
1774 para_printf(&msg, "%s\n", para_strerror(-ret));
1775 if (msg.offset)
1776 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1777 free(msg.buf);
1778 }
1779
1780 /** Used by com_add(). */
1781 struct private_add_data {
1782 /** The socket file descriptor. */
1783 int fd;
1784 /** The given add flags. */
1785 uint32_t flags;
1786 };
1787
1788 static void path_brother_callback(int fd, const struct osl_object *query)
1789 {
1790 char *path = query->data;
1791 struct osl_row *path_brother;
1792 int ret = aft_get_row_of_path(path, &path_brother);
1793 if (ret < 0)
1794 return;
1795 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1796 }
1797
1798 static void hash_sister_callback(int fd, const struct osl_object *query)
1799 {
1800 HASH_TYPE *hash = query->data;
1801 struct osl_row *hash_sister;
1802
1803 hash_sister = find_hash_sister(hash);
1804 if (!hash_sister)
1805 return;
1806 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1807 }
1808
1809 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1810 {
1811 struct osl_row **row = private;
1812 *row = result->data;
1813 return 1;
1814 }
1815
1816 static int add_one_audio_file(const char *path, void *private_data)
1817 {
1818 int ret, send_ret = 1, fd;
1819 uint8_t format_num = -1;
1820 struct private_add_data *pad = private_data;
1821 struct afh_info afhi, *afhi_ptr = NULL;
1822 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1823 struct osl_object map, obj = {.data = NULL}, query;
1824 HASH_TYPE hash[HASH_SIZE];
1825
1826 ret = guess_audio_format(path);
1827 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1828 goto out_free;
1829 query.data = (char *)path;
1830 query.size = strlen(path) + 1;
1831 ret = send_callback_request(path_brother_callback, &query,
1832 get_row_pointer_from_result, &pb);
1833 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1834 goto out_free;
1835 ret = 1;
1836 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1837 if (pad->flags & ADD_FLAG_VERBOSE)
1838 send_ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1839 goto out_free;
1840 }
1841 /* We still want to add this file. Compute its hash. */
1842 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1843 if (ret < 0)
1844 goto out_free;
1845 hash_function(map.data, map.size, hash);
1846
1847 /* Check whether the database contains a file with the same hash. */
1848 query.data = hash;
1849 query.size = HASH_SIZE;
1850 ret = send_callback_request(hash_sister_callback, &query,
1851 get_row_pointer_from_result, &hs);
1852 if (ret < 0)
1853 goto out_unmap;
1854 /* Return success if we already know this file. */
1855 ret = 1;
1856 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1857 if (pad->flags & ADD_FLAG_VERBOSE)
1858 send_ret = send_va_buffer(pad->fd,
1859 "%s exists, not forcing update\n", path);
1860 goto out_unmap;
1861 }
1862 /*
1863 * We won't recalculate the audio format info and the chunk table if
1864 * there is a hash sister and FORCE was not given.
1865 */
1866 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1867 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1868 if (ret < 0)
1869 goto out_unmap;
1870 format_num = ret;
1871 afhi_ptr = &afhi;
1872 }
1873 munmap(map.data, map.size);
1874 close(fd);
1875 if (pad->flags & ADD_FLAG_VERBOSE) {
1876 send_ret = send_va_buffer(pad->fd, "adding %s\n", path);
1877 if (send_ret < 0)
1878 goto out_free;
1879 }
1880 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1881 /* Ask afs to consider this entry for adding. */
1882 ret = send_callback_request(com_add_callback, &obj, send_result, &pad->fd);
1883 goto out_free;
1884
1885 out_unmap:
1886 close(fd);
1887 munmap(map.data, map.size);
1888 out_free:
1889 if (ret < 0 && send_ret >= 0)
1890 send_ret = send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1891 para_strerror(-ret));
1892 free(obj.data);
1893 if (afhi_ptr) {
1894 free(afhi_ptr->chunk_table);
1895 free(afhi_ptr->techinfo);
1896 free(afhi_ptr->tags.artist);
1897 free(afhi_ptr->tags.title);
1898 free(afhi_ptr->tags.year);
1899 free(afhi_ptr->tags.album);
1900 free(afhi_ptr->tags.comment);
1901 }
1902 /* Stop adding files only on send errors. */
1903 return send_ret;
1904 }
1905
1906 int com_add(int fd, int argc, char * const * const argv)
1907 {
1908 int i, ret;
1909 struct private_add_data pad = {.fd = fd, .flags = 0};
1910 struct stat statbuf;
1911
1912 for (i = 1; i < argc; i++) {
1913 const char *arg = argv[i];
1914 if (arg[0] != '-')
1915 break;
1916 if (!strcmp(arg, "--")) {
1917 i++;
1918 break;
1919 }
1920 if (!strcmp(arg, "-a")) {
1921 pad.flags |= ADD_FLAG_ALL;
1922 continue;
1923 }
1924 if (!strcmp(arg, "-l")) {
1925 pad.flags |= ADD_FLAG_LAZY;
1926 continue;
1927 }
1928 if (!strcmp(arg, "-f")) {
1929 pad.flags |= ADD_FLAG_FORCE;
1930 continue;
1931 }
1932 if (!strcmp(arg, "-v")) {
1933 pad.flags |= ADD_FLAG_VERBOSE;
1934 continue;
1935 }
1936 }
1937 if (argc <= i)
1938 return -E_AFT_SYNTAX;
1939 for (; i < argc; i++) {
1940 char *path;
1941 ret = verify_path(argv[i], &path);
1942 if (ret < 0) {
1943 ret = send_va_buffer(fd, "%s: %s\n", argv[i],
1944 para_strerror(-ret));
1945 if (ret < 0)
1946 return ret;
1947 continue;
1948 }
1949 ret = stat(path, &statbuf);
1950 if (ret < 0) {
1951 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1952 strerror(errno));
1953 free(path);
1954 if (ret < 0)
1955 return ret;
1956 continue;
1957 }
1958 if (S_ISDIR(statbuf.st_mode))
1959 ret = for_each_file_in_dir(path, add_one_audio_file,
1960 &pad);
1961 else
1962 ret = add_one_audio_file(path, &pad);
1963 if (ret < 0) {
1964 send_va_buffer(fd, "%s: %s\n", path, para_strerror(-ret));
1965 free(path);
1966 return ret;
1967 }
1968 free(path);
1969 }
1970 return 1;
1971
1972 }
1973
1974 /**
1975 * Flags used by the touch command.
1976 *
1977 * \sa com_touch().
1978 */
1979 enum touch_flags {
1980 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1981 TOUCH_FLAG_FNM_PATHNAME = 1,
1982 /** Activates verbose mode. */
1983 TOUCH_FLAG_VERBOSE = 2
1984 };
1985
1986 /** Options used by com_touch(). */
1987 struct com_touch_options {
1988 /** New num_played value. */
1989 int32_t num_played;
1990 /** New last played count. */
1991 int64_t last_played;
1992 /** New lyrics id. */
1993 int32_t lyrics_id;
1994 /** New image id. */
1995 int32_t image_id;
1996 /** New amplification value. */
1997 int32_t amp;
1998 /** Command line flags (see \ref touch_flags). */
1999 unsigned flags;
2000 };
2001
2002 /** Data passed to the action handler of com_touch(). */
2003 struct touch_action_data {
2004 /** Command line options (see \ref com_touch_options). */
2005 struct com_touch_options *cto;
2006 /** Message buffer. */
2007 struct para_buffer pb;
2008 /** How many audio files matched the given pattern. */
2009 unsigned num_matches;
2010 };
2011
2012 static int touch_audio_file(__a_unused struct osl_table *table,
2013 struct osl_row *row, const char *name, void *data)
2014 {
2015 struct touch_action_data *tad = data;
2016 struct osl_object obj;
2017 struct afs_info old_afsi, new_afsi;
2018 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2019 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2020 struct afsi_change_event_data aced;
2021
2022 ret = get_afsi_object_of_row(row, &obj);
2023 if (ret < 0)
2024 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2025 ret = load_afsi(&old_afsi, &obj);
2026 if (ret < 0)
2027 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2028 new_afsi = old_afsi;
2029 if (no_options) {
2030 new_afsi.num_played++;
2031 new_afsi.last_played = time(NULL);
2032 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2033 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2034 "last_played = now()\n", name,
2035 new_afsi.num_played);
2036 if (ret < 0)
2037 return ret;
2038 }
2039 } else {
2040 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2041 ret = para_printf(&tad->pb, "touching %s\n", name);
2042 if (ret < 0)
2043 return ret;
2044 }
2045 if (tad->cto->lyrics_id >= 0)
2046 new_afsi.lyrics_id = tad->cto->lyrics_id;
2047 if (tad->cto->image_id >= 0)
2048 new_afsi.image_id = tad->cto->image_id;
2049 if (tad->cto->num_played >= 0)
2050 new_afsi.num_played = tad->cto->num_played;
2051 if (tad->cto->last_played >= 0)
2052 new_afsi.last_played = tad->cto->last_played;
2053 if (tad->cto->amp >= 0)
2054 new_afsi.amp = tad->cto->amp;
2055 }
2056 tad->num_matches++;
2057 save_afsi(&new_afsi, &obj); /* in-place update */
2058 aced.aft_row = row;
2059 aced.old_afsi = &old_afsi;
2060 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2061 return 1;
2062 }
2063
2064 static void com_touch_callback(int fd, const struct osl_object *query)
2065 {
2066 struct touch_action_data tad = {.cto = query->data,
2067 .pb = {
2068 .max_size = SHMMAX,
2069 .private_data = &fd,
2070 .max_size_handler = pass_buffer_as_shm
2071 }
2072 };
2073 int ret, ret2 = 0;
2074 struct pattern_match_data pmd = {
2075 .table = audio_file_table,
2076 .loop_col_num = AFTCOL_HASH,
2077 .match_col_num = AFTCOL_PATH,
2078 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2079 .size = query->size - sizeof(*tad.cto)},
2080 .data = &tad,
2081 .action = touch_audio_file
2082 };
2083 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2084 pmd.fnmatch_flags |= FNM_PATHNAME;
2085 ret = for_each_matching_row(&pmd);
2086 if (ret < 0)
2087 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2088 else
2089 if (!tad.num_matches)
2090 ret2 = para_printf(&tad.pb, "no matches\n");
2091 if (ret2 >= 0 && tad.pb.offset)
2092 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2093 free(tad.pb.buf);
2094 }
2095
2096 int com_touch(int fd, int argc, char * const * const argv)
2097 {
2098 struct com_touch_options cto = {
2099 .num_played = -1,
2100 .last_played = -1,
2101 .lyrics_id = -1,
2102 .image_id = -1,
2103 .amp = -1,
2104 };
2105 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2106 int i, ret;
2107
2108
2109 for (i = 1; i < argc; i++) {
2110 const char *arg = argv[i];
2111 if (arg[0] != '-')
2112 break;
2113 if (!strcmp(arg, "--")) {
2114 i++;
2115 break;
2116 }
2117 if (!strncmp(arg, "-n", 2)) {
2118 ret = para_atoi32(arg + 2, &cto.num_played);
2119 if (ret < 0)
2120 return ret;
2121 continue;
2122 }
2123 if (!strncmp(arg, "-l", 2)) {
2124 ret = para_atoi64(arg + 2, &cto.last_played);
2125 if (ret < 0)
2126 return ret;
2127 continue;
2128 }
2129 if (!strncmp(arg, "-y", 2)) {
2130 ret = para_atoi32(arg + 2, &cto.lyrics_id);
2131 if (ret < 0)
2132 return ret;
2133 continue;
2134 }
2135 if (!strncmp(arg, "-i", 2)) {
2136 ret = para_atoi32(arg + 2, &cto.image_id);
2137 if (ret < 0)
2138 return ret;
2139 continue;
2140 }
2141 if (!strncmp(arg, "-a", 2)) {
2142 int32_t val;
2143 ret = para_atoi32(arg + 2, &val);
2144 if (ret < 0)
2145 return ret;
2146 if (val < 0 || val > 255)
2147 return -ERRNO_TO_PARA_ERROR(EINVAL);
2148 cto.amp = val;
2149 continue;
2150 }
2151 if (!strcmp(arg, "-p")) {
2152 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2153 continue;
2154 }
2155 if (!strcmp(arg, "-v")) {
2156 cto.flags |= TOUCH_FLAG_VERBOSE;
2157 continue;
2158 }
2159 break; /* non-option starting with dash */
2160 }
2161 if (i >= argc)
2162 return -E_AFT_SYNTAX;
2163 ret = send_option_arg_callback_request(&query, argc - i,
2164 argv + i, com_touch_callback, send_result, &fd);
2165 if (ret < 0)
2166 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2167 return ret;
2168 }
2169
2170 /** Flags for com_rm(). */
2171 enum rm_flags {
2172 /** -v */
2173 RM_FLAG_VERBOSE = 1,
2174 /** -f */
2175 RM_FLAG_FORCE = 2,
2176 /** -p */
2177 RM_FLAG_FNM_PATHNAME = 4
2178 };
2179
2180 /** Data passed to the action handler of com_rm(). */
2181 struct com_rm_action_data {
2182 /** Command line flags ((see \ref rm_flags). */
2183 uint32_t flags;
2184 /** Message buffer. */
2185 struct para_buffer pb;
2186 /** Number of audio files removed. */
2187 unsigned num_removed;
2188 };
2189
2190 static int remove_audio_file(__a_unused struct osl_table *table,
2191 struct osl_row *row, const char *name, void *data)
2192 {
2193 struct com_rm_action_data *crd = data;
2194 int ret;
2195
2196 if (crd->flags & RM_FLAG_VERBOSE) {
2197 ret = para_printf(&crd->pb, "removing %s\n", name);
2198 if (ret < 0)
2199 return ret;
2200 }
2201 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2202 ret = osl(osl_del_row(audio_file_table, row));
2203 if (ret < 0)
2204 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2205 else
2206 crd->num_removed++;
2207 return ret;
2208 }
2209
2210 static void com_rm_callback(int fd, const struct osl_object *query)
2211 {
2212 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2213 .pb = {
2214 .max_size = SHMMAX,
2215 .private_data = &fd,
2216 .max_size_handler = pass_buffer_as_shm
2217 }
2218 };
2219 int ret;
2220 struct pattern_match_data pmd = {
2221 .table = audio_file_table,
2222 .loop_col_num = AFTCOL_HASH,
2223 .match_col_num = AFTCOL_PATH,
2224 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2225 .size = query->size - sizeof(uint32_t)},
2226 .data = &crd,
2227 .action = remove_audio_file
2228 };
2229 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2230 pmd.fnmatch_flags |= FNM_PATHNAME;
2231 ret = for_each_matching_row(&pmd);
2232 if (ret < 0) {
2233 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2234 return;
2235 }
2236 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2237 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2238 else {
2239 if (crd.flags & RM_FLAG_VERBOSE)
2240 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2241 }
2242 if (ret >= 0 && crd.pb.offset)
2243 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2244 free(crd.pb.buf);
2245 }
2246
2247 /* TODO options: -r (recursive) */
2248 int com_rm(int fd, int argc, char * const * const argv)
2249 {
2250 uint32_t flags = 0;
2251 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2252 int i, ret;
2253
2254 for (i = 1; i < argc; i++) {
2255 const char *arg = argv[i];
2256 if (arg[0] != '-')
2257 break;
2258 if (!strcmp(arg, "--")) {
2259 i++;
2260 break;
2261 }
2262 if (!strcmp(arg, "-f")) {
2263 flags |= RM_FLAG_FORCE;
2264 continue;
2265 }
2266 if (!strcmp(arg, "-p")) {
2267 flags |= RM_FLAG_FNM_PATHNAME;
2268 continue;
2269 }
2270 if (!strcmp(arg, "-v")) {
2271 flags |= RM_FLAG_VERBOSE;
2272 continue;
2273 }
2274 break;
2275 }
2276 if (i >= argc)
2277 return -E_AFT_SYNTAX;
2278 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2279 com_rm_callback, send_result, &fd);
2280 if (ret < 0)
2281 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2282 return ret;
2283 }
2284
2285 /**
2286 * Flags used by the cpsi command.
2287 *
2288 * \sa com_cpsi().
2289 */
2290 enum cpsi_flags {
2291 /** Whether the lyrics id should be copied. */
2292 CPSI_FLAG_COPY_LYRICS_ID = 1,
2293 /** Whether the image id should be copied. */
2294 CPSI_FLAG_COPY_IMAGE_ID = 2,
2295 /** Whether the lastplayed time should be copied. */
2296 CPSI_FLAG_COPY_LASTPLAYED = 4,
2297 /** Whether the numplayed count should be copied. */
2298 CPSI_FLAG_COPY_NUMPLAYED = 8,
2299 /** Whether the attributes should be copied. */
2300 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2301 /** Activates verbose mode. */
2302 CPSI_FLAG_VERBOSE = 32,
2303 };
2304
2305 /** Data passed to the action handler of com_cpsi(). */
2306 struct cpsi_action_data {
2307 /** command line flags (see \ref cpsi_flags). */
2308 unsigned flags;
2309 /** Number of audio files changed. */
2310 unsigned num_copied;
2311 /** Message buffer. */
2312 struct para_buffer pb;
2313 /** Values are copied from here. */
2314 struct afs_info source_afsi;
2315 };
2316
2317 static int copy_selector_info(__a_unused struct osl_table *table,
2318 struct osl_row *row, const char *name, void *data)
2319 {
2320 struct cpsi_action_data *cad = data;
2321 struct osl_object target_afsi_obj;
2322 int ret;
2323 struct afs_info old_afsi, target_afsi;
2324 struct afsi_change_event_data aced;
2325
2326 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2327 if (ret < 0)
2328 return ret;
2329 load_afsi(&target_afsi, &target_afsi_obj);
2330 old_afsi = target_afsi;
2331 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2332 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2333 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2334 target_afsi.image_id = cad->source_afsi.image_id;
2335 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2336 target_afsi.last_played = cad->source_afsi.last_played;
2337 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2338 target_afsi.num_played = cad->source_afsi.num_played;
2339 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2340 target_afsi.attributes = cad->source_afsi.attributes;
2341 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2342 cad->num_copied++;
2343 if (cad->flags & CPSI_FLAG_VERBOSE) {
2344 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2345 if (ret < 0)
2346 return ret;
2347 }
2348 aced.aft_row = row;
2349 aced.old_afsi = &old_afsi;
2350 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2351 return 1;
2352 }
2353
2354 static void com_cpsi_callback(int fd, const struct osl_object *query)
2355 {
2356 struct cpsi_action_data cad = {
2357 .flags = *(unsigned *)query->data,
2358 .pb = {
2359 .max_size = SHMMAX,
2360 .private_data = &fd,
2361 .max_size_handler = pass_buffer_as_shm
2362 }
2363 };
2364 int ret;
2365 char *source_path = (char *)query->data + sizeof(cad.flags);
2366 struct pattern_match_data pmd = {
2367 .table = audio_file_table,
2368 .loop_col_num = AFTCOL_HASH,
2369 .match_col_num = AFTCOL_PATH,
2370 .patterns = {.data = source_path + strlen(source_path) + 1,
2371 .size = query->size - sizeof(cad.flags)
2372 - strlen(source_path) - 1},
2373 .data = &cad,
2374 .action = copy_selector_info
2375 };
2376
2377 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2378 if (ret < 0)
2379 goto out;
2380 ret = for_each_matching_row(&pmd);
2381 out:
2382 if (ret < 0)
2383 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2384 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2385 if (cad.num_copied)
2386 para_printf(&cad.pb, "copied requested afsi from %s "
2387 "to %u files\n", source_path, cad.num_copied);
2388 else
2389 para_printf(&cad.pb, "nothing copied\n");
2390 }
2391 if (cad.pb.offset)
2392 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2393 free(cad.pb.buf);
2394 }
2395
2396 int com_cpsi(int fd, int argc, char * const * const argv)
2397 {
2398 unsigned flags = 0;
2399 int i, ret;
2400 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2401
2402 for (i = 1; i < argc; i++) {
2403 const char *arg = argv[i];
2404 if (arg[0] != '-')
2405 break;
2406 if (!strcmp(arg, "--")) {
2407 i++;
2408 break;
2409 }
2410 if (!strcmp(arg, "-y")) {
2411 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2412 continue;
2413 }
2414 if (!strcmp(arg, "-i")) {
2415 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2416 continue;
2417 }
2418 if (!strcmp(arg, "-l")) {
2419 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2420 continue;
2421 }
2422 if (!strcmp(arg, "-n")) {
2423 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2424 continue;
2425 }
2426 if (!strcmp(arg, "-a")) {
2427 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2428 continue;
2429 }
2430 if (!strcmp(arg, "-v")) {
2431 flags |= CPSI_FLAG_VERBOSE;
2432 continue;
2433 }
2434 break;
2435 }
2436 if (i + 1 >= argc) /* need at least souce file and pattern */
2437 return -E_AFT_SYNTAX;
2438 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2439 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2440 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2441 com_cpsi_callback, send_result, &fd);
2442 if (ret < 0)
2443 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2444 return ret;
2445 }
2446
2447 /* TODO: optionally fix problems by removing offending rows */
2448 static int check_audio_file(struct osl_row *row, void *data)
2449 {
2450 char *path;
2451 struct para_buffer *pb = data;
2452 struct stat statbuf;
2453 int ret = get_audio_file_path_of_row(row, &path);
2454 struct afs_info afsi;
2455 char *blob_name;
2456
2457 if (ret < 0)
2458 return para_printf(pb, "%s\n", para_strerror(-ret));
2459 if (stat(path, &statbuf) < 0) {
2460 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2461 if (ret < 0)
2462 return ret;
2463 } else {
2464 if (!S_ISREG(statbuf.st_mode)) {
2465 ret = para_printf(pb, "%s: not a regular file\n", path);
2466 if (ret < 0)
2467 return ret;
2468 }
2469 }
2470 ret = get_afsi_of_row(row, &afsi);
2471 if (ret < 0)
2472 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2473 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2474 if (ret < 0) {
2475 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2476 para_strerror(-ret));
2477 if (ret < 0)
2478 return ret;
2479 }
2480 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2481 if (ret < 0)
2482 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2483 para_strerror(-ret));
2484 return ret;
2485 }
2486
2487 /**
2488 * Check the audio file table for inconsistencies.
2489 *
2490 * \param fd The afs socket.
2491 * \param query Unused.
2492 *
2493 * This function always succeeds.
2494 *
2495 * \sa com_check().
2496 */
2497 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2498 {
2499 struct para_buffer pb = {
2500 .max_size = SHMMAX,
2501 .private_data = &fd,
2502 .max_size_handler = pass_buffer_as_shm
2503 };
2504 int ret = para_printf(&pb, "checking audio file table...\n");
2505
2506 if (ret < 0)
2507 return;
2508 audio_file_loop(&pb, check_audio_file);
2509 if (pb.offset)
2510 pass_buffer_as_shm(pb.buf, pb.offset, &fd);
2511 free(pb.buf);
2512 }
2513
2514 /**
2515 * Close the audio file table.
2516 *
2517 * \param flags Usual flags that are passed to osl_close_table().
2518 *
2519 * \sa osl_close_table().
2520 */
2521 static void aft_close(void)
2522 {
2523 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2524 audio_file_table = NULL;
2525 }
2526
2527 /**
2528 * Open the audio file table.
2529 *
2530 * \param dir The database directory.
2531 *
2532 * \return Standard.
2533 *
2534 * \sa osl_open_table().
2535 */
2536 static int aft_open(const char *dir)
2537 {
2538 int ret;
2539
2540 audio_file_table_desc.dir = dir;
2541 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2542 if (ret >= 0) {
2543 unsigned num;
2544 osl_get_num_rows(audio_file_table, &num);
2545 PARA_INFO_LOG("audio file table contains %d files\n", num);
2546 return ret;
2547 }
2548 PARA_INFO_LOG("failed to open audio file table\n");
2549 audio_file_table = NULL;
2550 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2551 return 1;
2552 return ret;
2553 }
2554
2555 static int aft_create(const char *dir)
2556 {
2557 audio_file_table_desc.dir = dir;
2558 return osl(osl_create_table(&audio_file_table_desc));
2559 }
2560
2561 static int clear_attribute(struct osl_row *row, void *data)
2562 {
2563 struct rmatt_event_data *red = data;
2564 struct afs_info afsi;
2565 struct osl_object obj;
2566 int ret = get_afsi_object_of_row(row, &obj);
2567 uint64_t mask = ~(1ULL << red->bitnum);
2568
2569 if (ret < 0)
2570 return ret;
2571 ret = load_afsi(&afsi, &obj);
2572 if (ret < 0)
2573 return ret;
2574 afsi.attributes &= mask;
2575 save_afsi(&afsi, &obj);
2576 return 1;
2577 }
2578
2579 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2580 void *data)
2581 {
2582 int ret;
2583
2584 switch(event) {
2585 case ATTRIBUTE_REMOVE: {
2586 const struct rmatt_event_data *red = data;
2587 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2588 "entries in the audio file table\n", red->name,
2589 red->bitnum);
2590 if (ret < 0)
2591 return ret;
2592 return audio_file_loop(data, clear_attribute);
2593 }
2594 default:
2595 return 1;
2596 }
2597 }
2598
2599 void aft_init(struct afs_table *t)
2600 {
2601 t->name = audio_file_table_desc.name;
2602 t->open = aft_open;
2603 t->close = aft_close;
2604 t->create = aft_create;
2605 t->event_handler = aft_event_handler;
2606 }