Merge commit 'meins/master'
[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 "para.h"
11 #include "error.h"
12 #include "string.h"
13 #include <sys/mman.h>
14 #include <fnmatch.h>
15 #include <sys/shm.h>
16
17 #include "afh.h"
18 #include "afs.h"
19 #include "net.h"
20 #include "vss.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24
25 static struct osl_table *audio_file_table;
26
27 /** The different sorting methods of the ls command. */
28 enum ls_sorting_method {
29 /** -sp (default) */
30 LS_SORT_BY_PATH,
31 /** -ss */
32 LS_SORT_BY_SCORE,
33 /** -sl */
34 LS_SORT_BY_LAST_PLAYED,
35 /** -sn */
36 LS_SORT_BY_NUM_PLAYED,
37 /** -sf */
38 LS_SORT_BY_FREQUENCY,
39 /** -sc */
40 LS_SORT_BY_CHANNELS,
41 /** -si */
42 LS_SORT_BY_IMAGE_ID,
43 /** -sy */
44 LS_SORT_BY_LYRICS_ID,
45 /** -sb */
46 LS_SORT_BY_BITRATE,
47 /** -sd */
48 LS_SORT_BY_DURATION,
49 /** -sa */
50 LS_SORT_BY_AUDIO_FORMAT,
51 /** -sh */
52 LS_SORT_BY_HASH,
53 };
54
55 /** The different listing modes of the ls command. */
56 enum ls_listing_mode {
57 /** Default listing mode. */
58 LS_MODE_SHORT,
59 /** -l or -ll */
60 LS_MODE_LONG,
61 /** -lv */
62 LS_MODE_VERBOSE,
63 /** -lm */
64 LS_MODE_MBOX,
65 /** -lc */
66 LS_MODE_CHUNKS
67 };
68
69 /** The flags accepted by the ls command. */
70 enum ls_flags {
71 /** -p */
72 LS_FLAG_FULL_PATH = 1,
73 /** -a */
74 LS_FLAG_ADMISSIBLE_ONLY = 2,
75 /** -r */
76 LS_FLAG_REVERSE = 4,
77 };
78
79 /**
80 * The size of the individual output fields of the ls command.
81 *
82 * These depend on the actual content being listed. If, for instance only files
83 * with duration less than an hour are being listed, then the duration with is
84 * made smaller because then the duration is listed as mm:ss rather than
85 * hh:mm:ss.
86 */
87 struct ls_widths {
88 /** size of the score field. */
89 unsigned short score_width;
90 /** size of the image id field. */
91 unsigned short image_id_width;
92 /** size of the lyrics id field. */
93 unsigned short lyrics_id_width;
94 /** size of the bitrate field. */
95 unsigned short bitrate_width;
96 /** size of the frequency field. */
97 unsigned short frequency_width;
98 /** size of the duration field. */
99 unsigned short duration_width;
100 /** size of the num played field. */
101 unsigned short num_played_width;
102 /** size of the amp field. */
103 unsigned short amp_width;
104 };
105
106 /** Data passed from the ls command handler to its callback function. */
107 struct ls_options {
108 /** The given command line flags. */
109 unsigned flags;
110 /** The sorting method given at the command line. */
111 enum ls_sorting_method sorting;
112 /** The given listing mode (short, long, verbose, mbox). */
113 enum ls_listing_mode mode;
114 /** The arguments passed to the ls command. */
115 char **patterns;
116 /** Number of non-option arguments. */
117 int num_patterns;
118 /** Used for long listing mode to align the output fields. */
119 struct ls_widths widths;
120 /** Size of the \a data array. */
121 uint32_t array_size;
122 /** Number of used entries in the data array. */
123 uint32_t num_matching_paths;
124 /** Array of matching entries. */
125 struct ls_data *data;
126 /** Used to sort the array. */
127 struct ls_data **data_ptr;
128 };
129
130 /**
131 * Describes the layout of the mmapped-afs info struct.
132 *
133 * \sa struct afs_info.
134 */
135 enum afsi_offsets {
136 /** Where .last_played is stored. */
137 AFSI_LAST_PLAYED_OFFSET = 0,
138 /** Storage position of the attributes bitmap. */
139 AFSI_ATTRIBUTES_OFFSET = 8,
140 /** Storage position of the .num_played field. */
141 AFSI_NUM_PLAYED_OFFSET = 16,
142 /** Storage position of the .image_id field. */
143 AFSI_IMAGE_ID_OFFSET = 20,
144 /** Storage position of the .lyrics_id field. */
145 AFSI_LYRICS_ID_OFFSET = 24,
146 /** Storage position of the .audio_format_id field. */
147 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
148 /** Storage position of the amplification field. */
149 AFSI_AMP_OFFSET = 29,
150 /** 2 bytes reserved space for future usage. */
151 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
152 /** On-disk storage space needed. */
153 AFSI_SIZE = 32
154 };
155
156 /**
157 * Convert a struct afs_info to an osl object.
158 *
159 * \param afsi Pointer to the audio file info to be converted.
160 * \param obj Result pointer.
161 *
162 * \sa load_afsi().
163 */
164 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
165 {
166 char *buf = obj->data;
167
168 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
169 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
170 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
171 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
172 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
173 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
174 afsi->audio_format_id);
175 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
176 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
177 }
178
179 /**
180 * Get the audio file selector info struct stored in an osl object.
181 *
182 * \param afsi Points to the audio_file info structure to be filled in.
183 * \param obj The osl object holding the data.
184 *
185 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
186 *
187 * \sa save_afsi().
188 */
189 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
190 {
191 char *buf = obj->data;
192 if (obj->size < AFSI_SIZE)
193 return -E_BAD_AFSI;
194 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
195 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
196 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
197 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
198 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
199 afsi->audio_format_id = read_u8(buf +
200 AFSI_AUDIO_FORMAT_ID_OFFSET);
201 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
202 return 1;
203 }
204
205 /** The columns of the audio file table. */
206 enum audio_file_table_columns {
207 /** The hash on the content of the audio file. */
208 AFTCOL_HASH,
209 /** The full path in the filesystem. */
210 AFTCOL_PATH,
211 /** The audio file selector info. */
212 AFTCOL_AFSI,
213 /** The audio format handler info. */
214 AFTCOL_AFHI,
215 /** The chunk table info and the chunk table of the audio file. */
216 AFTCOL_CHUNKS,
217 /** The number of columns of this table. */
218 NUM_AFT_COLUMNS
219 };
220
221 static struct osl_column_description aft_cols[] = {
222 [AFTCOL_HASH] = {
223 .storage_type = OSL_MAPPED_STORAGE,
224 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
225 .name = "hash",
226 .compare_function = osl_hash_compare,
227 .data_size = HASH_SIZE
228 },
229 [AFTCOL_PATH] = {
230 .storage_type = OSL_MAPPED_STORAGE,
231 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
232 .name = "path",
233 .compare_function = string_compare,
234 },
235 [AFTCOL_AFSI] = {
236 .storage_type = OSL_MAPPED_STORAGE,
237 .storage_flags = OSL_FIXED_SIZE,
238 .name = "afs_info",
239 .data_size = AFSI_SIZE
240 },
241 [AFTCOL_AFHI] = {
242 .storage_type = OSL_MAPPED_STORAGE,
243 .name = "afh_info",
244 },
245 [AFTCOL_CHUNKS] = {
246 .storage_type = OSL_DISK_STORAGE,
247 .name = "chunks",
248 }
249 };
250
251 static struct osl_table_description audio_file_table_desc = {
252 .name = "audio_files",
253 .num_columns = NUM_AFT_COLUMNS,
254 .flags = OSL_LARGE_TABLE,
255 .column_descriptions = aft_cols
256 };
257
258 /* We don't want * dot or dot-dot anywhere. */
259 static int verify_dotfile(const char *rest)
260 {
261 /*
262 * The first character was '.', but that has already been discarded, we
263 * now test the rest.
264 */
265 switch (*rest) {
266 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
267 return -1;
268 case '.': /* path start with /foo/.. */
269 if (rest[1] == '\0' || rest[1] == '/')
270 return -1; /* /foo/.. or /foo/../bar are not ok */
271 /* /foo/..bar is ok */
272 }
273 return 1;
274 }
275
276 /*
277 * We fundamentally don't like some paths: We don't want double slashes or
278 * slashes at the end that can make pathnames ambiguous.
279 */
280 static int verify_path(const char *orig_path, char **resolved_path)
281 {
282 char c;
283 size_t len;
284 char *path;
285
286 if (*orig_path != '/') /* we only accept absolute paths */
287 return -E_BAD_PATH;
288 len = strlen(orig_path);
289 *resolved_path = para_strdup(orig_path);
290 path = *resolved_path;
291 while (len > 1 && path[--len] == '/')
292 path[len] = '\0'; /* remove slash at the end */
293 c = *path++;
294 while (c) {
295 if (c == '/') {
296 c = *path++;
297 switch (c) {
298 case '/': /* double slash */
299 goto bad_path;
300 case '.':
301 if (verify_dotfile(path) < 0)
302 goto bad_path;
303 default:
304 continue;
305 }
306 }
307 c = *path++;
308 }
309 return 1;
310 bad_path:
311 free(*resolved_path);
312 return -E_BAD_PATH;
313 }
314
315 /** The on-disk layout of a afhi struct. */
316 enum afhi_offsets {
317 /** Where the number of seconds is stored. */
318 AFHI_SECONDS_TOTAL_OFFSET = 0,
319 /** Position of the bitrate. */
320 AFHI_BITRATE_OFFSET = 4,
321 /** Position of the frequency. */
322 AFHI_FREQUENCY_OFFSET = 8,
323 /** Location of the audio file header. */
324 AFHI_HEADER_OFFSET_OFFSET = 12,
325 /* Length of the audio file header. Zero means: No header. */
326 AFHI_HEADER_LEN_OFFSET = 16,
327 /** The total number of chunks (4 bytes). */
328 CHUNKS_TOTAL_OFFSET = 20,
329 /** The length of the audio file header (4 bytes). */
330 HEADER_LEN_OFFSET = 24,
331 /** The start of the audio file header (4 bytes). */
332 HEADER_OFFSET_OFFSET = 28,
333 /** The seconds part of the chunk time (4 bytes). */
334 CHUNK_TV_TV_SEC_OFFSET = 32,
335 /** The microseconds part of the chunk time (4 bytes). */
336 CHUNK_TV_TV_USEC_OFFSET = 36,
337 /** Number of channels is stored here. (1 byte) */
338 AFHI_CHANNELS_OFFSET = 40,
339 /** EOF timeout in ms. (2 byte) */
340 AFHI_EOF_OFFSET = 41,
341 /** The tag info position. */
342 AFHI_INFO_STRING_OFFSET = 43,
343 /** Minimal on-disk size of a valid afhi struct. */
344 MIN_AFHI_SIZE = 44
345 };
346
347 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
348 {
349 if (!afhi)
350 return 0;
351 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
352 }
353
354 static void save_afhi(struct afh_info *afhi, char *buf)
355 {
356 if (!afhi)
357 return;
358 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
359 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
360 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
361 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
362 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
363 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
364 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
365 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
366 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
367 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
368 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
369 write_u16(buf + AFHI_EOF_OFFSET, tv2ms(&afhi->eof_tv));
370 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
371 }
372
373 static void load_afhi(const char *buf, struct afh_info *afhi)
374 {
375 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
376 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
377 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
378 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
379 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
380 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
381 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
382 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
383 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
384 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
385 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
386 ms2tv(read_u16(buf + AFHI_EOF_OFFSET), &afhi->eof_tv);
387 afhi->info_string = para_strdup(buf + AFHI_INFO_STRING_OFFSET);
388 }
389
390 static unsigned sizeof_chunk_table(struct afh_info *afhi)
391 {
392 if (!afhi)
393 return 0;
394 return 4 * (afhi->chunks_total + 1);
395 }
396
397 static void save_chunk_table(struct afh_info *afhi, char *buf)
398 {
399 int i;
400
401 for (i = 0; i <= afhi->chunks_total; i++)
402 write_u32(buf + 4 * i, afhi->chunk_table[i]);
403 }
404
405 static void load_chunk_table(struct afh_info *afhi, char *buf)
406 {
407 int i;
408
409 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
410 for (i = 0; i <= afhi->chunks_total; i++)
411 afhi->chunk_table[i] = read_u32(buf + 4 * i);
412 }
413
414 /**
415 * Get the row of the audio file table corresponding to the given path.
416 *
417 * \param path The full path of the audio file.
418 * \param row Result pointer.
419 *
420 * \return The return value of the underlying call to osl_get_row().
421 */
422 int aft_get_row_of_path(const char *path, struct osl_row **row)
423 {
424 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
425
426 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
427 }
428
429 /**
430 * Get the row of the audio file table corresponding to the given hash value.
431 *
432 * \param hash The hash value of the desired audio file.
433 * \param row resul pointer.
434 *
435 * \return The return value of the underlying call to osl_get_row().
436 */
437 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
438 {
439 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
440 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
441 }
442
443 /**
444 * Get the osl object holding the audio file selector info of a row.
445 *
446 * \param row Pointer to a row in the audio file table.
447 * \param obj Result pointer.
448 *
449 * \return The return value of the underlying call to osl_get_object().
450 */
451 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
452 {
453 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
454 }
455
456 /**
457 * Get the osl object holding the audio file selector info, given a path.
458 *
459 *
460 * \param path The full path of the audio file.
461 * \param obj Result pointer.
462 *
463 * \return Positive on success, negative on errors.
464 */
465 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
466 {
467 struct osl_row *row;
468 int ret = aft_get_row_of_path(path, &row);
469 if (ret < 0)
470 return ret;
471 return get_afsi_object_of_row(row, obj);
472 }
473
474 /**
475 * Get the audio file selector info, given a row of the audio file table.
476 *
477 * \param row Pointer to a row in the audio file table.
478 * \param afsi Result pointer.
479 *
480 * \return Positive on success, negative on errors.
481 */
482 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
483 {
484 struct osl_object obj;
485 int ret = get_afsi_object_of_row(row, &obj);
486 if (ret < 0)
487 return ret;
488 return load_afsi(afsi, &obj);
489 }
490
491 /**
492 * Get the audio file selector info, given the path of an audio table.
493 *
494 * \param path The full path of the audio file.
495 * \param afsi Result pointer.
496 *
497 * \return Positive on success, negative on errors.
498 */
499 int get_afsi_of_path(const char *path, struct afs_info *afsi)
500 {
501 struct osl_object obj;
502 int ret = get_afsi_object_of_path(path, &obj);
503 if (ret < 0)
504 return ret;
505 return load_afsi(afsi, &obj);
506 }
507
508 /**
509 * Get the path of an audio file, given a row of the audio file table.
510 *
511 * \param row Pointer to a row in the audio file table.
512 * \param path Result pointer.
513 *
514 * The result is a pointer to mmapped data. The caller must not attempt
515 * to free it.
516 *
517 * \return Standard.
518 */
519 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
520 {
521 struct osl_object path_obj;
522 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
523 &path_obj);
524 if (ret < 0)
525 return ret;
526 *path = path_obj.data;
527 return 1;
528 }
529
530 /**
531 * Get the object containing the hash value of an audio file, given a row.
532 *
533 * \param row Pointer to a row of the audio file table.
534 * \param obj Result pointer.
535 *
536 * \return The return value of the underlying call to osl_get_object().
537 *
538 * \sa get_hash_of_row().
539 */
540 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
541 {
542 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
543 }
544
545 /**
546 * Get the hash value of an audio file, given a row of the audio file table.
547 *
548 * \param row Pointer to a row of the audio file table.
549 * \param hash Result pointer.
550 *
551 * \a hash points to mapped data and must not be freed by the caller.
552 *
553 * \return The return value of the underlying call to
554 * get_hash_object_of_aft_row().
555 */
556 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
557 {
558 struct osl_object obj;
559 int ret = get_hash_object_of_aft_row(row, &obj);
560
561 if (ret < 0)
562 return ret;
563 *hash = obj.data;
564 return 1;
565 }
566
567 /**
568 * Get the audio format handler info, given a row of the audio file table.
569 *
570 * \param row Pointer to a row of the audio file table.
571 * \param afhi Result pointer.
572 *
573 * \return The return value of the underlying call to osl_get_object().
574 *
575 * \sa get_chunk_table_of_row().
576 */
577 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
578 {
579 struct osl_object obj;
580 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
581 &obj);
582 if (ret < 0)
583 return ret;
584 load_afhi(obj.data, afhi);
585 return 1;
586 }
587
588 /* returns shmid on success */
589 static int save_afd(struct audio_file_data *afd)
590 {
591 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
592 int shmid, ret = shm_new(size);
593 void *shm_afd;
594 char *buf;
595
596 if (ret < 0)
597 return ret;
598 shmid = ret;
599 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
600 if (ret < 0)
601 goto err;
602 *(struct audio_file_data *)shm_afd = *afd;
603 buf = shm_afd;
604 buf += sizeof(*afd);
605 save_chunk_table(&afd->afhi, buf);
606 shm_detach(shm_afd);
607 return shmid;
608 err:
609 shm_destroy(shmid);
610 return ret;
611 }
612
613 int load_afd(int shmid, struct audio_file_data *afd)
614 {
615 void *shm_afd;
616 char *buf;
617 int ret;
618
619 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
620 if (ret < 0)
621 return ret;
622 *afd = *(struct audio_file_data *)shm_afd;
623 buf = shm_afd;
624 buf += sizeof(*afd);
625 load_chunk_table(&afd->afhi, buf);
626 shm_detach(shm_afd);
627 return 1;
628 }
629
630 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
631 time_t current_time, enum ls_listing_mode lm)
632 {
633 struct tm t;
634
635 if (!localtime_r((time_t *)seconds, &t))
636 return -E_LOCALTIME;
637 if (lm == LS_MODE_MBOX) {
638 if (!strftime(buf, size, "%c", &t))
639 return -E_STRFTIME;
640 return 1;
641 }
642 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
643 if (!strftime(buf, size, "%b %e %k:%M", &t))
644 return -E_STRFTIME;
645 return 1;
646 }
647 if (!strftime(buf, size, "%b %e %Y", &t))
648 return -E_STRFTIME;
649 return 1;
650 }
651
652 /** Compute the number of (decimal) digits of a number. */
653 #define GET_NUM_DIGITS(x, num) { \
654 typeof((x)) _tmp = PARA_ABS(x); \
655 *num = 1; \
656 if ((_tmp)) \
657 while ((_tmp) > 9) { \
658 (_tmp) /= 10; \
659 (*num)++; \
660 } \
661 }
662
663 static short unsigned get_duration_width(int seconds)
664 {
665 short unsigned width;
666 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
667
668 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
669 return 4 + (mins > 9);
670 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
671 GET_NUM_DIGITS(hours, &width);
672 return width + 6;
673 }
674
675 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
676 {
677 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
678 short unsigned max_width;
679
680 if (!hours) { /* m:ss or mm:ss */
681 max_width = opts->mode == LS_MODE_LONG?
682 opts->widths.duration_width : 4;
683 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
684 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
685 max_width = opts->mode == LS_MODE_LONG?
686 opts->widths.duration_width : 7;
687 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
688 seconds % 60);
689 }
690 }
691
692 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
693 {
694 char *att_text, *att_lines;
695
696 get_attribute_text(&afsi->attributes, " ", &att_text);
697 if (!att_text)
698 return para_strdup(att_bitmap);
699 att_lines = make_message("%s: %s\n%s: %s",
700 status_item_list[SI_ATTRIBUTES_BITMAP], att_bitmap,
701 status_item_list[SI_ATTRIBUTES_TXT], att_text);
702 free(att_text);
703 return att_lines;
704 }
705
706 static char *make_lyrics_lines(struct afs_info *afsi)
707 {
708 char *lyrics_name;
709
710 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
711 return make_message("%s: %u\n%s: %s\n",
712 status_item_list[SI_LYRICS_ID], afsi->lyrics_id,
713 status_item_list[SI_LYRICS_NAME], lyrics_name?
714 lyrics_name : "(none)");
715 }
716
717 static char *make_image_lines(struct afs_info *afsi)
718 {
719 char *image_name;
720 img_get_name_by_id(afsi->image_id, &image_name);
721 return make_message("%s: %u\n%s: %s\n",
722 status_item_list[SI_IMAGE_ID], afsi->image_id,
723 status_item_list[SI_IMAGE_NAME], image_name?
724 image_name : "(none)");
725 }
726
727 static char *make_filename_lines(const char *path, unsigned flags)
728 {
729 char *dirname, *ret;
730 const char *basename;
731
732 if (!(flags & LS_FLAG_FULL_PATH))
733 return make_message("%s: %s\n",
734 status_item_list[SI_BASENAME], path);
735 basename = para_basename(path),
736 dirname = para_dirname(path);
737 ret = make_message("%s: %s\n%s: %s\n%s: %s\n",
738 status_item_list[SI_PATH], path,
739 status_item_list[SI_DIRECTORY], dirname? dirname : "?",
740 status_item_list[SI_BASENAME], basename? basename : "?");
741 free(dirname);
742 return ret;
743 }
744
745 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
746 {
747 struct osl_object chunk_table_obj;
748 struct osl_row *aft_row;
749 int ret, i;
750 char *buf;
751
752 ret = aft_get_row_of_hash(d->hash, &aft_row);
753 if (ret < 0)
754 return ret;
755 ret = osl_open_disk_object(audio_file_table, aft_row,
756 AFTCOL_CHUNKS, &chunk_table_obj);
757 if (ret < 0)
758 return ret;
759 ret = para_printf(b, "%s\n"
760 "chunk_time: %lu:%lu\nchunk_offsets: ",
761 d->path,
762 (long unsigned) d->afhi.chunk_tv.tv_sec,
763 (long unsigned) d->afhi.chunk_tv.tv_usec
764 );
765 if (ret < 0)
766 goto out;
767 buf = chunk_table_obj.data;
768 for (i = 0; i <= d->afhi.chunks_total; i++) {
769 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
770 if (ret < 0)
771 goto out;
772 }
773 ret = para_printf(b, "\n");
774 out:
775 osl_close_disk_object(&chunk_table_obj);
776 return ret;
777 }
778
779 static int print_list_item(struct ls_data *d, struct ls_options *opts,
780 struct para_buffer *b, time_t current_time)
781 {
782 int ret;
783 char att_buf[65];
784 char last_played_time[30];
785 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
786 char score_buf[30] = "";
787 struct afs_info *afsi = &d->afsi;
788 struct afh_info *afhi = &d->afhi;
789 struct ls_widths *w = &opts->widths;
790 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
791 char asc_hash[2 * HASH_SIZE + 1];
792 char *att_lines, *lyrics_lines, *image_lines, *filename_lines;
793
794 if (opts->mode == LS_MODE_SHORT) {
795 ret = para_printf(b, "%s\n", d->path);
796 goto out;
797 }
798 if (opts->mode == LS_MODE_CHUNKS) {
799 ret = print_chunk_table(d, b);
800 goto out;
801 }
802 get_attribute_bitmap(&afsi->attributes, att_buf);
803 ret = get_local_time(&afsi->last_played, last_played_time,
804 sizeof(last_played_time), current_time, opts->mode);
805 if (ret < 0)
806 goto out;
807 get_duration_buf(afhi->seconds_total, duration_buf, opts);
808 if (have_score) {
809 if (opts->mode == LS_MODE_LONG)
810 sprintf(score_buf, "%*li ", w->score_width, d->score);
811 else
812 sprintf(score_buf, "%li ", d->score);
813 }
814
815 if (opts->mode == LS_MODE_LONG) {
816 ret = para_printf(b,
817 "%s" /* score */
818 "%s " /* attributes */
819 "%*u " /* amp */
820 "%*d " /* image_id */
821 "%*d " /* lyrics_id */
822 "%*d " /* bitrate */
823 "%s " /* audio format */
824 "%*d " /* frequency */
825 "%d " /* channels */
826 "%s " /* duration */
827 "%*d " /* num_played */
828 "%s " /* last_played */
829 "%s\n", /* path */
830 score_buf,
831 att_buf,
832 w->amp_width, afsi->amp,
833 w->image_id_width, afsi->image_id,
834 w->lyrics_id_width, afsi->lyrics_id,
835 w->bitrate_width, afhi->bitrate,
836 audio_format_name(afsi->audio_format_id),
837 w->frequency_width, afhi->frequency,
838 afhi->channels,
839 duration_buf,
840 w->num_played_width, afsi->num_played,
841 last_played_time,
842 d->path
843 );
844 goto out;
845 }
846 hash_to_asc(d->hash, asc_hash);
847 att_lines = make_attribute_lines(att_buf, afsi);
848 lyrics_lines = make_lyrics_lines(afsi);
849 image_lines = make_image_lines(afsi);
850 filename_lines = make_filename_lines(d->path, opts->flags);
851 if (opts->mode == LS_MODE_MBOX) {
852 const char *bn = para_basename(d->path);
853 ret = para_printf(b,
854 "From foo@localhost %s\n"
855 "Received: from\nTo: bar\nFrom: a\n"
856 "Subject: %s\n\n",
857 last_played_time,
858 bn? bn : "?");
859 if (ret < 0)
860 goto out;
861 }
862 ret = para_printf(b,
863 "%s" /* filename stuff */
864 "%s%s%s%s" /* score */
865 "%s\n" /* attributes */
866 "%s: %s\n" /* hash */
867 "%s" /* image id, image name */
868 "%s" /* lyrics */
869 "%s: %dkbit/s\n" /* bitrate */
870 "%s: %s\n" /* format */
871 "%s: %dHz\n" /* frequency */
872 "%s: %d\n" /* channels */
873 "%s: %s\n" /* duration */
874 "%s: %lu\n" /* seconds total */
875 "%s: %s\n" /* last played time */
876 "%s: %d\n" /* num_played */
877 "%s: %u\n" /* ampplification */
878 "%s" /* tag info */
879 "%s: %lu\n" /* chunk time */
880 "%s: %lu\n", /* num chunks */
881 filename_lines,
882 have_score? status_item_list[SI_SCORE] : "",
883 have_score? ": " : "",
884 score_buf,
885 have_score? "\n" : "",
886 att_lines,
887 status_item_list[SI_HASH], asc_hash,
888 image_lines,
889 lyrics_lines,
890 status_item_list[SI_BITRATE], afhi->bitrate,
891 status_item_list[SI_FORMAT], audio_format_name(afsi->audio_format_id),
892 status_item_list[SI_FREQUENCY], afhi->frequency,
893 status_item_list[SI_CHANNELS], afhi->channels,
894 status_item_list[SI_DURATION], duration_buf,
895 status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
896 status_item_list[SI_LAST_PLAYED], last_played_time,
897 status_item_list[SI_NUM_PLAYED], afsi->num_played,
898 status_item_list[SI_AMPLIFICATION], afsi->amp,
899 afhi->info_string,
900 status_item_list[SI_CHUNK_TIME], tv2ms(&afhi->chunk_tv),
901 status_item_list[SI_NUM_CHUNKS], afhi->chunks_total
902 );
903 if (ret < 0)
904 goto out;
905 if (opts->mode == LS_MODE_MBOX) {
906 struct osl_object lyrics_def;
907 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
908 if (lyrics_def.data) {
909 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
910 (char *)lyrics_def.data);
911 osl_close_disk_object(&lyrics_def);
912 }
913 }
914 free(att_lines);
915 free(lyrics_lines);
916 free(image_lines);
917 free(filename_lines);
918 out:
919 free(afhi->info_string);
920 return ret;
921 }
922
923 /**
924 * Write a list of audio-file related status items with empty values.
925 *
926 * \param buf Result pointer.
927 *
928 * This is used by vss when currently no audio file is open.
929 */
930 void make_empty_status_items(char *buf)
931 {
932 sprintf(buf,
933 "%s: \n" /* path */
934 "%s: \n" /* dirname */
935 "%s: \n" /* basename */
936 "%s: \n" /* score */
937 "%s: \n" /* attributes bitmap */
938 "%s: \n" /* attributes txt */
939 "%s: \n" /* hash */
940 "%s: \n" /* image id */
941 "%s: \n" /* image name */
942 "%s: \n" /* lyrics id */
943 "%s: \n" /* lyrics name */
944 "%s: \n" /* bitrate */
945 "%s: \n" /* format */
946 "%s: \n" /* frequency */
947 "%s: \n" /* channels */
948 "%s: \n" /* duration */
949 "%s: \n" /* seconds total */
950 "%s: \n" /* num played */
951 "%s: \n" /* last played */
952 "%s: \n" /* audio file info */
953 "%s: \n" /* taginfo1 */
954 "%s: \n" /* taginfo2 */
955 "%s: \n" /* amplification */
956 ,
957 status_item_list[SI_PATH],
958 status_item_list[SI_DIRECTORY],
959 status_item_list[SI_BASENAME],
960 status_item_list[SI_SCORE],
961 status_item_list[SI_ATTRIBUTES_BITMAP],
962 status_item_list[SI_ATTRIBUTES_TXT],
963 status_item_list[SI_HASH],
964 status_item_list[SI_IMAGE_ID],
965 status_item_list[SI_IMAGE_NAME],
966 status_item_list[SI_LYRICS_ID],
967 status_item_list[SI_LYRICS_NAME],
968 status_item_list[SI_BITRATE],
969 status_item_list[SI_FORMAT],
970 status_item_list[SI_FREQUENCY],
971 status_item_list[SI_CHANNELS],
972 status_item_list[SI_DURATION],
973 status_item_list[SI_SECONDS_TOTAL],
974 status_item_list[SI_NUM_PLAYED],
975 status_item_list[SI_LAST_PLAYED],
976 status_item_list[SI_AUDIO_FILE_INFO],
977 status_item_list[SI_TAGINFO1],
978 status_item_list[SI_TAGINFO2],
979 status_item_list[SI_AMPLIFICATION]
980 );
981 }
982
983 static void fixup_taginfo(char *begin, char *end)
984 {
985 char *p = begin;
986
987 for (;;) {
988 p = strchr(p, '\n');
989 if (!p)
990 break;
991 if (p >= end - 1)
992 break;
993 *p = ' ';
994 p++;
995 }
996 }
997
998 /* crap, remove this ASAP. */
999 static int fixup_info_string(char *info_string)
1000 {
1001 char *t1, *t2, *end;
1002
1003 if (strncmp(info_string, "audio_file_info:", 16))
1004 return -ERRNO_TO_PARA_ERROR(EINVAL);
1005 t1 = strstr(info_string, "\ntaginfo1:");
1006 if (!t1)
1007 return -ERRNO_TO_PARA_ERROR(EINVAL);
1008 t2 = strstr(info_string, "\ntaginfo2: ");
1009 if (!t2)
1010 return -ERRNO_TO_PARA_ERROR(EINVAL);
1011
1012 end = t2 + strlen(t2) + 1;
1013 fixup_taginfo(info_string + 16, t1);
1014 fixup_taginfo(t1 + 10, t2);
1015 fixup_taginfo(t2 + 10, end);
1016
1017 if (t1 - info_string < 80 && t2 - t1 < 80 && end - t2 < 80)
1018 return 0;
1019 if (t1 - info_string >= 80) {
1020 memmove(info_string + 80, t1, end - t1);
1021 t1 = info_string + 80;
1022 t2 -= t1 - info_string - 80;
1023 end -= t1 - info_string - 80;
1024 }
1025 if (t2 - t1 >= 80) {
1026 memmove(t1 + 80, t2, end - t2);
1027 end -= t2 - t1 - 80;
1028 t2 = t1 + 80;
1029 }
1030 if (end - t2 >= 80) {
1031 t2[78] = '\n';
1032 t2[79] = '\0';
1033 }
1034 return 1;
1035 }
1036
1037 static int make_status_items(struct audio_file_data *afd,
1038 struct afs_info *afsi, char *path, long score,
1039 HASH_TYPE *hash)
1040 {
1041 struct ls_data d = {
1042 .afhi = afd->afhi,
1043 .afsi = *afsi,
1044 .path = path,
1045 .score = score,
1046 .hash = hash
1047 };
1048 struct ls_options opts = {
1049 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1050 .mode = LS_MODE_VERBOSE,
1051 };
1052 struct para_buffer pb = {.max_size = VERBOSE_LS_OUTPUT_SIZE - 1};
1053 time_t current_time;
1054 int ret;
1055
1056 ret = fixup_info_string(afd->afhi.info_string);
1057 if (ret < 0) {
1058 PARA_WARNING_LOG("ignoring invalid tag info\n");
1059 afd->afhi.info_string[0] = '\0';
1060 } else if (ret)
1061 PARA_NOTICE_LOG("truncated overlong tag info\n");
1062 time(&current_time);
1063 ret = print_list_item(&d, &opts, &pb, current_time); /* frees info string */
1064 afd->afhi.info_string = NULL;
1065 if (ret < 0)
1066 goto out;
1067 strncpy(afd->verbose_ls_output, pb.buf, VERBOSE_LS_OUTPUT_SIZE);
1068 afd->verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE - 1] = '\0';
1069 out:
1070 free(pb.buf);
1071 return ret;
1072 }
1073
1074 /**
1075 * Mmap the given audio file and update statistics.
1076 *
1077 * \param aft_row Determines the audio file to be opened and updated.
1078 * \param score The score of the audio file.
1079 * \param afd Result pointer.
1080 *
1081 * On success, the numplayed field of the audio file selector info is increased
1082 * and the lastplayed time is set to the current time. Finally, the score of
1083 * the audio file is updated.
1084 *
1085 * \return Positive shmid on success, negative on errors.
1086 */
1087 int open_and_update_audio_file(struct osl_row *aft_row, long score,
1088 struct audio_file_data *afd)
1089 {
1090 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
1091 struct osl_object afsi_obj;
1092 struct afs_info old_afsi, new_afsi;
1093 int ret = get_hash_of_row(aft_row, &aft_hash);
1094 struct afsi_change_event_data aced;
1095 struct osl_object map, chunk_table_obj;
1096 char *path;
1097
1098 if (ret < 0)
1099 return ret;
1100 ret = get_audio_file_path_of_row(aft_row, &path);
1101 if (ret < 0)
1102 return ret;
1103 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
1104 if (ret < 0)
1105 return ret;
1106 ret = load_afsi(&old_afsi, &afsi_obj);
1107 if (ret < 0)
1108 return ret;
1109 ret = get_afhi_of_row(aft_row, &afd->afhi);
1110 if (ret < 0)
1111 return ret;
1112 afd->afhi.chunk_table = NULL;
1113 ret = osl_open_disk_object(audio_file_table, aft_row,
1114 AFTCOL_CHUNKS, &chunk_table_obj);
1115 if (ret < 0)
1116 goto err;
1117 ret = mmap_full_file(path, O_RDONLY, &map.data,
1118 &map.size, &afd->fd);
1119 if (ret < 0)
1120 goto err;
1121 hash_function(map.data, map.size, file_hash);
1122 ret = hash_compare(file_hash, aft_hash);
1123 para_munmap(map.data, map.size);
1124 if (ret) {
1125 ret = -E_HASH_MISMATCH;
1126 goto err;
1127 }
1128 new_afsi = old_afsi;
1129 new_afsi.num_played++;
1130 new_afsi.last_played = time(NULL);
1131 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1132
1133 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1134 ret = make_status_items(afd, &old_afsi, path, score, file_hash);
1135 if (ret < 0)
1136 goto err;
1137 aced.aft_row = aft_row;
1138 aced.old_afsi = &old_afsi;
1139 afs_event(AFSI_CHANGE, NULL, &aced);
1140 ret = save_afd(afd);
1141 err:
1142 free(afd->afhi.chunk_table);
1143 free(afd->afhi.info_string);
1144 osl_close_disk_object(&chunk_table_obj);
1145 return ret;
1146 }
1147
1148 static int ls_audio_format_compare(const void *a, const void *b)
1149 {
1150 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1151 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1152 }
1153
1154 static int ls_duration_compare(const void *a, const void *b)
1155 {
1156 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1157 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1158 }
1159
1160 static int ls_bitrate_compare(const void *a, const void *b)
1161 {
1162 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1163 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1164 }
1165
1166 static int ls_lyrics_id_compare(const void *a, const void *b)
1167 {
1168 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1169 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1170 }
1171
1172 static int ls_image_id_compare(const void *a, const void *b)
1173 {
1174 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1175 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1176 }
1177
1178 static int ls_channels_compare(const void *a, const void *b)
1179 {
1180 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1181 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1182 }
1183
1184 static int ls_frequency_compare(const void *a, const void *b)
1185 {
1186 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1187 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1188 }
1189
1190 static int ls_num_played_compare(const void *a, const void *b)
1191 {
1192 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1193 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1194 }
1195
1196 static int ls_last_played_compare(const void *a, const void *b)
1197 {
1198 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1199 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1200 }
1201
1202 static int ls_score_compare(const void *a, const void *b)
1203 {
1204 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1205 return NUM_COMPARE(d1->score, d2->score);
1206 }
1207
1208 static int ls_path_compare(const void *a, const void *b)
1209 {
1210 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1211 return strcmp(d1->path, d2->path);
1212 }
1213
1214 static int sort_matching_paths(struct ls_options *options)
1215 {
1216 size_t nmemb = options->num_matching_paths;
1217 size_t size = sizeof(*options->data_ptr);
1218 int (*compar)(const void *, const void *);
1219 int i;
1220
1221 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1222 for (i = 0; i < nmemb; i++)
1223 options->data_ptr[i] = options->data + i;
1224
1225 /* In these cases the array is already sorted */
1226 if (options->sorting == LS_SORT_BY_PATH
1227 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1228 && (options->flags & LS_FLAG_FULL_PATH))
1229 return 1;
1230 if (options->sorting == LS_SORT_BY_SCORE &&
1231 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1232 return 1;
1233
1234 switch (options->sorting) {
1235 case LS_SORT_BY_PATH:
1236 compar = ls_path_compare; break;
1237 case LS_SORT_BY_SCORE:
1238 compar = ls_score_compare; break;
1239 case LS_SORT_BY_LAST_PLAYED:
1240 compar = ls_last_played_compare; break;
1241 case LS_SORT_BY_NUM_PLAYED:
1242 compar = ls_num_played_compare; break;
1243 case LS_SORT_BY_FREQUENCY:
1244 compar = ls_frequency_compare; break;
1245 case LS_SORT_BY_CHANNELS:
1246 compar = ls_channels_compare; break;
1247 case LS_SORT_BY_IMAGE_ID:
1248 compar = ls_image_id_compare; break;
1249 case LS_SORT_BY_LYRICS_ID:
1250 compar = ls_lyrics_id_compare; break;
1251 case LS_SORT_BY_BITRATE:
1252 compar = ls_bitrate_compare; break;
1253 case LS_SORT_BY_DURATION:
1254 compar = ls_duration_compare; break;
1255 case LS_SORT_BY_AUDIO_FORMAT:
1256 compar = ls_audio_format_compare; break;
1257 default:
1258 return -E_BAD_SORT;
1259 }
1260 qsort(options->data_ptr, nmemb, size, compar);
1261 return 1;
1262 }
1263
1264 /* row is either an aft_row or a row of the score table */
1265 /* TODO: Only compute widths if we need them */
1266 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1267 {
1268 int ret, i;
1269 struct ls_options *options = ls_opts;
1270 struct ls_data *d;
1271 struct ls_widths *w;
1272 unsigned short num_digits;
1273 unsigned tmp;
1274 struct osl_row *aft_row;
1275 long score;
1276 char *path;
1277
1278 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1279 ret = get_score_and_aft_row(row, &score, &aft_row);
1280 if (ret < 0)
1281 return ret;
1282 } else
1283 aft_row = row;
1284 ret = get_audio_file_path_of_row(aft_row, &path);
1285 if (ret < 0)
1286 return ret;
1287 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1288 char *p = strrchr(path, '/');
1289 if (p)
1290 path = p + 1;
1291 }
1292 if (options->num_patterns) {
1293 for (i = 0; i < options->num_patterns; i++) {
1294 ret = fnmatch(options->patterns[i], path, 0);
1295 if (!ret)
1296 break;
1297 if (ret == FNM_NOMATCH)
1298 continue;
1299 return -E_FNMATCH;
1300 }
1301 if (i >= options->num_patterns) /* no match */
1302 return 1;
1303 }
1304 tmp = options->num_matching_paths++;
1305 if (options->num_matching_paths > options->array_size) {
1306 options->array_size++;
1307 options->array_size *= 2;
1308 options->data = para_realloc(options->data, options->array_size
1309 * sizeof(*options->data));
1310 }
1311 d = options->data + tmp;
1312 ret = get_afsi_of_row(aft_row, &d->afsi);
1313 if (ret < 0)
1314 return ret;
1315 ret = get_afhi_of_row(aft_row, &d->afhi);
1316 if (ret < 0)
1317 return ret;
1318 d->path = path;
1319 ret = get_hash_of_row(aft_row, &d->hash);
1320 if (ret < 0)
1321 goto err;
1322 w = &options->widths;
1323 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1324 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1325 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1326 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1327 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1328 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1329 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1330 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1331 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1332 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1333 /* get the number of chars to print this amount of time */
1334 num_digits = get_duration_width(d->afhi.seconds_total);
1335 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1336 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1337 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1338 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1339 GET_NUM_DIGITS(score, &num_digits);
1340 num_digits++; /* add one for the sign (space or "-") */
1341 w->score_width = PARA_MAX(w->score_width, num_digits);
1342 d->score = score;
1343 }
1344 return 1;
1345 err:
1346 free(d->afhi.info_string);
1347 return ret;
1348 }
1349
1350 static void com_ls_callback(int fd, const struct osl_object *query)
1351 {
1352 struct ls_options *opts = query->data;
1353 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1354 struct para_buffer b = {.max_size = SHMMAX,
1355 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1356 int i = 0, ret;
1357 time_t current_time;
1358
1359
1360 if (opts->num_patterns) {
1361 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1362 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1363 opts->patterns[i] = p;
1364 p += strlen(p) + 1;
1365 }
1366 } else
1367 opts->patterns = NULL;
1368 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1369 ret = admissible_file_loop(opts, prepare_ls_row);
1370 else
1371 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1372 prepare_ls_row);
1373 if (ret < 0)
1374 goto out;
1375 if (!opts->num_matching_paths)
1376 goto out;
1377 ret = sort_matching_paths(opts);
1378 if (ret < 0)
1379 goto out;
1380 time(&current_time);
1381 if (opts->flags & LS_FLAG_REVERSE)
1382 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1383 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1384 if (ret < 0)
1385 goto out;
1386 }
1387 else
1388 for (i = 0; i < opts->num_matching_paths; i++) {
1389 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1390 if (ret < 0)
1391 goto out;
1392 }
1393 out:
1394 if (b.offset)
1395 pass_buffer_as_shm(b.buf, b.offset, &fd);
1396 free(b.buf);
1397 free(opts->data);
1398 free(opts->data_ptr);
1399 free(opts->patterns);
1400 }
1401
1402 /*
1403 * TODO: flags -h (sort by hash)
1404 */
1405 int com_ls(int fd, int argc, char * const * const argv)
1406 {
1407 int i, ret;
1408 unsigned flags = 0;
1409 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1410 enum ls_listing_mode mode = LS_MODE_SHORT;
1411 struct ls_options opts = {.patterns = NULL};
1412 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1413
1414 for (i = 1; i < argc; i++) {
1415 const char *arg = argv[i];
1416 if (arg[0] != '-')
1417 break;
1418 if (!strcmp(arg, "--")) {
1419 i++;
1420 break;
1421 }
1422 if (!strncmp(arg, "-l", 2)) {
1423 if (!*(arg + 2)) {
1424 mode = LS_MODE_LONG;
1425 continue;
1426 }
1427 if (*(arg + 3))
1428 return -E_AFT_SYNTAX;
1429 switch(*(arg + 2)) {
1430 case 's':
1431 mode = LS_MODE_SHORT;
1432 continue;
1433 case 'l':
1434 mode = LS_MODE_LONG;
1435 continue;
1436 case 'v':
1437 mode = LS_MODE_VERBOSE;
1438 continue;
1439 case 'm':
1440 mode = LS_MODE_MBOX;
1441 continue;
1442 case 'c':
1443 mode = LS_MODE_CHUNKS;
1444 continue;
1445 default:
1446 return -E_AFT_SYNTAX;
1447 }
1448 }
1449 if (!strcmp(arg, "-p")) {
1450 flags |= LS_FLAG_FULL_PATH;
1451 continue;
1452 }
1453 if (!strcmp(arg, "-a")) {
1454 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1455 continue;
1456 }
1457 if (!strcmp(arg, "-r")) {
1458 flags |= LS_FLAG_REVERSE;
1459 continue;
1460 }
1461 if (!strncmp(arg, "-s", 2)) {
1462 if (!*(arg + 2) || *(arg + 3))
1463 return -E_AFT_SYNTAX;
1464 switch(*(arg + 2)) {
1465 case 'p':
1466 sort = LS_SORT_BY_PATH;
1467 continue;
1468 case 's': /* -ss implies -a */
1469 sort = LS_SORT_BY_SCORE;
1470 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1471 continue;
1472 case 'l':
1473 sort = LS_SORT_BY_LAST_PLAYED;
1474 continue;
1475 case 'n':
1476 sort = LS_SORT_BY_NUM_PLAYED;
1477 continue;
1478 case 'f':
1479 sort = LS_SORT_BY_FREQUENCY;
1480 continue;
1481 case 'c':
1482 sort = LS_SORT_BY_CHANNELS;
1483 continue;
1484 case 'i':
1485 sort = LS_SORT_BY_IMAGE_ID;
1486 continue;
1487 case 'y':
1488 sort = LS_SORT_BY_LYRICS_ID;
1489 continue;
1490 case 'b':
1491 sort = LS_SORT_BY_BITRATE;
1492 continue;
1493 case 'd':
1494 sort = LS_SORT_BY_DURATION;
1495 continue;
1496 case 'a':
1497 sort = LS_SORT_BY_AUDIO_FORMAT;
1498 continue;
1499 default:
1500 return -E_AFT_SYNTAX;
1501 }
1502 }
1503 return -E_AFT_SYNTAX;
1504 }
1505 opts.flags = flags;
1506 opts.sorting = sort;
1507 opts.mode = mode;
1508 opts.num_patterns = argc - i;
1509 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1510 argv + i, com_ls_callback, send_result, &fd);
1511 return ret;
1512 }
1513
1514 /**
1515 * Call the given function for each file in the audio file table.
1516 *
1517 * \param private_data An arbitrary data pointer, passed to \a func.
1518 * \param func The custom function to be called.
1519 *
1520 * \return The return value of the underlying call to osl_rbtree_loop().
1521 */
1522 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1523 {
1524 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1525 func);
1526 }
1527
1528 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1529 {
1530 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1531 struct osl_row *row;
1532
1533 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1534 return row;
1535 }
1536
1537 /** The format of the data stored by save_audio_file_data(). */
1538 enum com_add_buffer_offsets {
1539 /** afhi (if present) starts here. */
1540 CAB_AFHI_OFFSET_POS = 0,
1541 /** Start of the chunk table (if present). */
1542 CAB_CHUNKS_OFFSET_POS = 2,
1543 /** Audio format id. */
1544 CAB_AUDIO_FORMAT_OFFSET = 4,
1545 /** Flags given to the add command. */
1546 CAB_FLAGS_OFFSET = 5,
1547 /** The hash of the audio file being added. */
1548 CAB_HASH_OFFSET = 9,
1549 /** Start of the path of the audio file. */
1550 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1551 };
1552
1553 /*
1554 * Store the given data to a single buffer. Doesn't need the audio file selector
1555 * info struct as the server knows it as well.
1556 *
1557 * It's OK to call this with afhi == NULL. In this case, the audio format
1558 * handler info won't be stored in the buffer.
1559 */
1560 static void save_add_callback_buffer(HASH_TYPE *hash, const char *path,
1561 struct afh_info *afhi, uint32_t flags,
1562 uint8_t audio_format_num, struct osl_object *obj)
1563 {
1564 size_t path_len = strlen(path) + 1;
1565 size_t afhi_size = sizeof_afhi_buf(afhi);
1566 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1567 + sizeof_chunk_table(afhi);
1568 char *buf = para_malloc(size);
1569 uint16_t pos;
1570
1571 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1572 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1573
1574 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1575 strcpy(buf + CAB_PATH_OFFSET, path);
1576
1577 pos = CAB_PATH_OFFSET + path_len;
1578 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1579 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1580 pos + afhi_size - 1);
1581 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1582 save_afhi(afhi, buf + pos);
1583
1584 pos += afhi_size;
1585 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1586 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1587 if (afhi)
1588 save_chunk_table(afhi, buf + pos);
1589 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1590 obj->data = buf;
1591 obj->size = size;
1592 }
1593
1594 /*
1595
1596 Overview of the add command.
1597
1598 Input: What was passed to the callback by the command handler.
1599 ~~~~~~
1600 HS: Hash sister. Whether an audio file with identical hash
1601 already exists in the osl database.
1602
1603 PB: Path brother. Whether a file with the given path exists
1604 in the table.
1605
1606 F: Force flag given. Whether add was called with -f.
1607
1608 output: Action performed by the callback.
1609 ~~~~~~~
1610 AFHI: Whether afhi and chunk table are computed and sent.
1611 ACTION: Table modifications to be done by the callback.
1612
1613 +----+----+---+------+---------------------------------------------------+
1614 | HS | PB | F | AFHI | ACTION
1615 +----+----+---+------+---------------------------------------------------+
1616 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1617 | | update path, keep afsi
1618 +----+----+---+------+---------------------------------------------------+
1619 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1620 | | otherwise: remove PB, HS: update path, keep afhi,
1621 | | afsi.
1622 +----+----+---+------+---------------------------------------------------+
1623 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1624 | | HS, keep afsi
1625 +----+----+---+------+---------------------------------------------------+
1626 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1627 +----+----+---+------+---------------------------------------------------+
1628 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1629 | | (force has no effect)
1630 +----+----+---+------+---------------------------------------------------+
1631 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1632 +----+----+---+------+---------------------------------------------------+
1633 | N | N | Y | Y | (new file) create new entry (force has no effect)
1634 +----+----+---+------+---------------------------------------------------+
1635 | N | N | N | Y | (new file) create new entry
1636 +----+----+---+------+---------------------------------------------------+
1637
1638 Notes:
1639
1640 afhi <=> force or no HS
1641 F => AFHI
1642
1643 */
1644
1645 /** Flags passed to the add command. */
1646 enum com_add_flags {
1647 /** Skip paths that exist already. */
1648 ADD_FLAG_LAZY = 1,
1649 /** Force adding. */
1650 ADD_FLAG_FORCE = 2,
1651 /** Print what is being done. */
1652 ADD_FLAG_VERBOSE = 4,
1653 /** Try to add files with unknown suffixes. */
1654 ADD_FLAG_ALL = 8,
1655 };
1656
1657 static void com_add_callback(int fd, const struct osl_object *query)
1658 {
1659 char *buf = query->data, *path;
1660 struct osl_row *pb, *aft_row;
1661 struct osl_row *hs;
1662 struct osl_object objs[NUM_AFT_COLUMNS];
1663 HASH_TYPE *hash;
1664 char asc[2 * HASH_SIZE + 1];
1665 int ret;
1666 char afsi_buf[AFSI_SIZE];
1667 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1668 struct afs_info default_afsi = {.last_played = 0};
1669 struct para_buffer msg = {.max_size = SHMMAX,
1670 .max_size_handler = pass_buffer_as_shm, .private_data = &fd};
1671 uint16_t afhi_offset, chunks_offset;
1672
1673 hash = (HASH_TYPE *)buf + CAB_HASH_OFFSET;
1674 hash_to_asc(hash, asc);;
1675 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1676 objs[AFTCOL_HASH].size = HASH_SIZE;
1677
1678 path = buf + CAB_PATH_OFFSET;
1679 objs[AFTCOL_PATH].data = path;
1680 objs[AFTCOL_PATH].size = strlen(path) + 1;
1681
1682 PARA_INFO_LOG("request to add %s\n", path);
1683 hs = find_hash_sister(hash);
1684 ret = aft_get_row_of_path(path, &pb);
1685 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1686 goto out;
1687 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1688 if (flags & ADD_FLAG_VERBOSE)
1689 ret = para_printf(&msg, "ignoring duplicate\n");
1690 else
1691 ret = 1;
1692 goto out;
1693 }
1694 if (hs && hs != pb) {
1695 struct osl_object obj;
1696 if (pb) { /* hs trumps pb, remove pb */
1697 if (flags & ADD_FLAG_VERBOSE) {
1698 ret = para_printf(&msg, "removing path brother\n");
1699 if (ret < 0)
1700 goto out;
1701 }
1702 ret = osl_del_row(audio_file_table, pb);
1703 if (ret < 0)
1704 goto out;
1705 pb = NULL;
1706 }
1707 /* file rename, update hs' path */
1708 if (flags & ADD_FLAG_VERBOSE) {
1709 ret = osl_get_object(audio_file_table, hs,
1710 AFTCOL_PATH, &obj);
1711 if (ret < 0)
1712 goto out;
1713 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1714 if (ret < 0)
1715 goto out;
1716 }
1717 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1718 &objs[AFTCOL_PATH]);
1719 if (ret < 0)
1720 goto out;
1721 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1722 if (!(flags & ADD_FLAG_FORCE))
1723 goto out;
1724 }
1725 /* no hs or force mode, child must have sent afhi */
1726 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1727 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1728
1729 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1730 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1731 ret = -E_NO_AFHI;
1732 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1733 goto out;
1734 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1735 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1736 if (pb && !hs) { /* update pb's hash */
1737 char old_asc[2 * HASH_SIZE + 1];
1738 HASH_TYPE *old_hash;
1739 ret = get_hash_of_row(pb, &old_hash);
1740 if (ret < 0)
1741 goto out;
1742 hash_to_asc(old_hash, old_asc);
1743 if (flags & ADD_FLAG_VERBOSE) {
1744 ret = para_printf(&msg, "file change: %s -> %s\n",
1745 old_asc, asc);
1746 if (ret < 0)
1747 goto out;
1748 }
1749 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1750 &objs[AFTCOL_HASH]);
1751 if (ret < 0)
1752 goto out;
1753 }
1754 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1755 struct osl_row *row = pb? pb : hs;
1756 /* update afhi and chunk_table */
1757 if (flags & ADD_FLAG_VERBOSE) {
1758 ret = para_printf(&msg, "updating afhi and chunk table\n");
1759 if (ret < 0)
1760 goto out;
1761 }
1762 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1763 &objs[AFTCOL_AFHI]);
1764 if (ret < 0)
1765 goto out;
1766 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1767 &objs[AFTCOL_CHUNKS]);
1768 if (ret < 0)
1769 goto out;
1770 afs_event(AFHI_CHANGE, &msg, row);
1771 goto out;
1772 }
1773 /* new entry, use default afsi */
1774 if (flags & ADD_FLAG_VERBOSE) {
1775 ret = para_printf(&msg, "new file\n");
1776 if (ret < 0)
1777 goto out;
1778 }
1779 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1780 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1781
1782 objs[AFTCOL_AFSI].data = &afsi_buf;
1783 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1784 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1785 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1786 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1787 out:
1788 if (ret < 0)
1789 para_printf(&msg, "%s\n", para_strerror(-ret));
1790 if (msg.offset)
1791 pass_buffer_as_shm(msg.buf, msg.offset, &fd);
1792 free(msg.buf);
1793 }
1794
1795 /** Used by com_add(). */
1796 struct private_add_data {
1797 /** The socket file descriptor. */
1798 int fd;
1799 /** The given add flags. */
1800 uint32_t flags;
1801 };
1802
1803 static void path_brother_callback(int fd, const struct osl_object *query)
1804 {
1805 char *path = query->data;
1806 struct osl_row *path_brother;
1807 int ret = aft_get_row_of_path(path, &path_brother);
1808 if (ret < 0)
1809 return;
1810 pass_buffer_as_shm((char *)&path_brother, sizeof(path_brother), &fd);
1811 }
1812
1813 static void hash_sister_callback(int fd, const struct osl_object *query)
1814 {
1815 HASH_TYPE *hash = query->data;
1816 struct osl_row *hash_sister;
1817
1818 hash_sister = find_hash_sister(hash);
1819 if (!hash_sister)
1820 return;
1821 pass_buffer_as_shm((char *)&hash_sister, sizeof(hash_sister), &fd);
1822 }
1823
1824 static int get_row_pointer_from_result(struct osl_object *result, void *private)
1825 {
1826 struct osl_row **row = private;
1827 *row = result->data;
1828 return 1;
1829 }
1830
1831 static int add_one_audio_file(const char *path, void *private_data)
1832 {
1833 int ret, send_ret = 1, fd;
1834 uint8_t format_num = -1;
1835 struct private_add_data *pad = private_data;
1836 struct afh_info afhi, *afhi_ptr = NULL;
1837 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1838 struct osl_object map, obj = {.data = NULL}, query;
1839 HASH_TYPE hash[HASH_SIZE];
1840
1841 ret = guess_audio_format(path);
1842 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1843 goto out_free;
1844 query.data = (char *)path;
1845 query.size = strlen(path) + 1;
1846 ret = send_callback_request(path_brother_callback, &query,
1847 get_row_pointer_from_result, &pb);
1848 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1849 goto out_free;
1850 ret = 1;
1851 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1852 if (pad->flags & ADD_FLAG_VERBOSE)
1853 send_ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1854 goto out_free;
1855 }
1856 /* We still want to add this file. Compute its hash. */
1857 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1858 if (ret < 0)
1859 goto out_free;
1860 hash_function(map.data, map.size, hash);
1861
1862 /* Check whether the database contains a file with the same hash. */
1863 query.data = hash;
1864 query.size = HASH_SIZE;
1865 ret = send_callback_request(hash_sister_callback, &query,
1866 get_row_pointer_from_result, &hs);
1867 if (ret < 0)
1868 goto out_unmap;
1869 /* Return success if we already know this file. */
1870 ret = 1;
1871 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1872 if (pad->flags & ADD_FLAG_VERBOSE)
1873 send_ret = send_va_buffer(pad->fd,
1874 "%s exists, not forcing update\n", path);
1875 goto out_unmap;
1876 }
1877 /*
1878 * We won't recalculate the audio format info and the chunk table if
1879 * there is a hash sister and FORCE was not given.
1880 */
1881 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1882 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1883 if (ret < 0)
1884 goto out_unmap;
1885 format_num = ret;
1886 afhi_ptr = &afhi;
1887 }
1888 munmap(map.data, map.size);
1889 close(fd);
1890 if (pad->flags & ADD_FLAG_VERBOSE) {
1891 send_ret = send_va_buffer(pad->fd, "adding %s\n", path);
1892 if (send_ret < 0)
1893 goto out_free;
1894 }
1895 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1896 /* Ask afs to consider this entry for adding. */
1897 ret = send_callback_request(com_add_callback, &obj, send_result, &pad->fd);
1898 goto out_free;
1899
1900 out_unmap:
1901 close(fd);
1902 munmap(map.data, map.size);
1903 out_free:
1904 if (ret < 0 && send_ret >= 0)
1905 send_ret = send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1906 para_strerror(-ret));
1907 free(obj.data);
1908 if (afhi_ptr) {
1909 free(afhi_ptr->chunk_table);
1910 free(afhi_ptr->info_string);
1911 }
1912 /* Stop adding files only on send errors. */
1913 return send_ret;
1914 }
1915
1916 int com_add(int fd, int argc, char * const * const argv)
1917 {
1918 int i, ret;
1919 struct private_add_data pad = {.fd = fd, .flags = 0};
1920 struct stat statbuf;
1921
1922 for (i = 1; i < argc; i++) {
1923 const char *arg = argv[i];
1924 if (arg[0] != '-')
1925 break;
1926 if (!strcmp(arg, "--")) {
1927 i++;
1928 break;
1929 }
1930 if (!strcmp(arg, "-a")) {
1931 pad.flags |= ADD_FLAG_ALL;
1932 continue;
1933 }
1934 if (!strcmp(arg, "-l")) {
1935 pad.flags |= ADD_FLAG_LAZY;
1936 continue;
1937 }
1938 if (!strcmp(arg, "-f")) {
1939 pad.flags |= ADD_FLAG_FORCE;
1940 continue;
1941 }
1942 if (!strcmp(arg, "-v")) {
1943 pad.flags |= ADD_FLAG_VERBOSE;
1944 continue;
1945 }
1946 }
1947 if (argc <= i)
1948 return -E_AFT_SYNTAX;
1949 for (; i < argc; i++) {
1950 char *path;
1951 ret = verify_path(argv[i], &path);
1952 if (ret < 0) {
1953 ret = send_va_buffer(fd, "%s: %s\n", argv[i],
1954 para_strerror(-ret));
1955 if (ret < 0)
1956 return ret;
1957 continue;
1958 }
1959 ret = stat(path, &statbuf);
1960 if (ret < 0) {
1961 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1962 strerror(errno));
1963 free(path);
1964 if (ret < 0)
1965 return ret;
1966 continue;
1967 }
1968 if (S_ISDIR(statbuf.st_mode))
1969 ret = for_each_file_in_dir(path, add_one_audio_file,
1970 &pad);
1971 else
1972 ret = add_one_audio_file(path, &pad);
1973 if (ret < 0) {
1974 send_va_buffer(fd, "%s: %s\n", path, para_strerror(-ret));
1975 free(path);
1976 return ret;
1977 }
1978 free(path);
1979 }
1980 return 1;
1981
1982 }
1983
1984 /**
1985 * Flags used by the touch command.
1986 *
1987 * \sa com_touch().
1988 */
1989 enum touch_flags {
1990 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1991 TOUCH_FLAG_FNM_PATHNAME = 1,
1992 /** Activates verbose mode. */
1993 TOUCH_FLAG_VERBOSE = 2
1994 };
1995
1996 /** Options used by com_touch(). */
1997 struct com_touch_options {
1998 /** New num_played value. */
1999 int32_t num_played;
2000 /** New last played count. */
2001 int64_t last_played;
2002 /** New lyrics id. */
2003 int32_t lyrics_id;
2004 /** New image id. */
2005 int32_t image_id;
2006 /** New amplification value. */
2007 int32_t amp;
2008 /** Command line flags (see \ref touch_flags). */
2009 unsigned flags;
2010 };
2011
2012 /** Data passed to the action handler of com_touch(). */
2013 struct touch_action_data {
2014 /** Command line options (see \ref com_touch_options). */
2015 struct com_touch_options *cto;
2016 /** Message buffer. */
2017 struct para_buffer pb;
2018 /** How many audio files matched the given pattern. */
2019 unsigned num_matches;
2020 };
2021
2022 static int touch_audio_file(__a_unused struct osl_table *table,
2023 struct osl_row *row, const char *name, void *data)
2024 {
2025 struct touch_action_data *tad = data;
2026 struct osl_object obj;
2027 struct afs_info old_afsi, new_afsi;
2028 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2029 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2030 struct afsi_change_event_data aced;
2031
2032 ret = get_afsi_object_of_row(row, &obj);
2033 if (ret < 0)
2034 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2035 ret = load_afsi(&old_afsi, &obj);
2036 if (ret < 0)
2037 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2038 new_afsi = old_afsi;
2039 if (no_options) {
2040 new_afsi.num_played++;
2041 new_afsi.last_played = time(NULL);
2042 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2043 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2044 "last_played = now()\n", name,
2045 new_afsi.num_played);
2046 if (ret < 0)
2047 return ret;
2048 }
2049 } else {
2050 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2051 ret = para_printf(&tad->pb, "touching %s\n", name);
2052 if (ret < 0)
2053 return ret;
2054 }
2055 if (tad->cto->lyrics_id >= 0)
2056 new_afsi.lyrics_id = tad->cto->lyrics_id;
2057 if (tad->cto->image_id >= 0)
2058 new_afsi.image_id = tad->cto->image_id;
2059 if (tad->cto->num_played >= 0)
2060 new_afsi.num_played = tad->cto->num_played;
2061 if (tad->cto->last_played >= 0)
2062 new_afsi.last_played = tad->cto->last_played;
2063 if (tad->cto->amp >= 0)
2064 new_afsi.amp = tad->cto->amp;
2065 }
2066 tad->num_matches++;
2067 save_afsi(&new_afsi, &obj); /* in-place update */
2068 aced.aft_row = row;
2069 aced.old_afsi = &old_afsi;
2070 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2071 return 1;
2072 }
2073
2074 static void com_touch_callback(int fd, const struct osl_object *query)
2075 {
2076 struct touch_action_data tad = {.cto = query->data,
2077 .pb = {
2078 .max_size = SHMMAX,
2079 .private_data = &fd,
2080 .max_size_handler = pass_buffer_as_shm
2081 }
2082 };
2083 int ret, ret2 = 0;
2084 struct pattern_match_data pmd = {
2085 .table = audio_file_table,
2086 .loop_col_num = AFTCOL_HASH,
2087 .match_col_num = AFTCOL_PATH,
2088 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2089 .size = query->size - sizeof(*tad.cto)},
2090 .data = &tad,
2091 .action = touch_audio_file
2092 };
2093 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2094 pmd.fnmatch_flags |= FNM_PATHNAME;
2095 ret = for_each_matching_row(&pmd);
2096 if (ret < 0)
2097 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2098 else
2099 if (!tad.num_matches)
2100 ret2 = para_printf(&tad.pb, "no matches\n");
2101 if (ret2 >= 0 && tad.pb.offset)
2102 pass_buffer_as_shm(tad.pb.buf, tad.pb.offset, &fd);
2103 free(tad.pb.buf);
2104 }
2105
2106 int com_touch(int fd, int argc, char * const * const argv)
2107 {
2108 struct com_touch_options cto = {
2109 .num_played = -1,
2110 .last_played = -1,
2111 .lyrics_id = -1,
2112 .image_id = -1,
2113 .amp = -1,
2114 };
2115 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2116 int i, ret;
2117
2118
2119 for (i = 1; i < argc; i++) {
2120 const char *arg = argv[i];
2121 if (arg[0] != '-')
2122 break;
2123 if (!strcmp(arg, "--")) {
2124 i++;
2125 break;
2126 }
2127 if (!strncmp(arg, "-n", 2)) {
2128 ret = para_atoi32(arg + 2, &cto.num_played);
2129 if (ret < 0)
2130 return ret;
2131 continue;
2132 }
2133 if (!strncmp(arg, "-l", 2)) {
2134 ret = para_atoi64(arg + 2, &cto.last_played);
2135 if (ret < 0)
2136 return ret;
2137 continue;
2138 }
2139 if (!strncmp(arg, "-y", 2)) {
2140 ret = para_atoi32(arg + 2, &cto.lyrics_id);
2141 if (ret < 0)
2142 return ret;
2143 continue;
2144 }
2145 if (!strncmp(arg, "-i", 2)) {
2146 ret = para_atoi32(arg + 2, &cto.image_id);
2147 if (ret < 0)
2148 return ret;
2149 continue;
2150 }
2151 if (!strncmp(arg, "-a", 2)) {
2152 int32_t val;
2153 ret = para_atoi32(arg + 2, &val);
2154 if (ret < 0)
2155 return ret;
2156 if (val < 0 || val > 255)
2157 return -ERRNO_TO_PARA_ERROR(EINVAL);
2158 cto.amp = val;
2159 continue;
2160 }
2161 if (!strcmp(arg, "-p")) {
2162 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2163 continue;
2164 }
2165 if (!strcmp(arg, "-v")) {
2166 cto.flags |= TOUCH_FLAG_VERBOSE;
2167 continue;
2168 }
2169 break; /* non-option starting with dash */
2170 }
2171 if (i >= argc)
2172 return -E_AFT_SYNTAX;
2173 ret = send_option_arg_callback_request(&query, argc - i,
2174 argv + i, com_touch_callback, send_result, &fd);
2175 if (ret < 0)
2176 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2177 return ret;
2178 }
2179
2180 /** Flags for com_rm(). */
2181 enum rm_flags {
2182 /** -v */
2183 RM_FLAG_VERBOSE = 1,
2184 /** -f */
2185 RM_FLAG_FORCE = 2,
2186 /** -p */
2187 RM_FLAG_FNM_PATHNAME = 4
2188 };
2189
2190 /** Data passed to the action handler of com_rm(). */
2191 struct com_rm_action_data {
2192 /** Command line flags ((see \ref rm_flags). */
2193 uint32_t flags;
2194 /** Message buffer. */
2195 struct para_buffer pb;
2196 /** Number of audio files removed. */
2197 unsigned num_removed;
2198 };
2199
2200 static int remove_audio_file(__a_unused struct osl_table *table,
2201 struct osl_row *row, const char *name, void *data)
2202 {
2203 struct com_rm_action_data *crd = data;
2204 int ret;
2205
2206 if (crd->flags & RM_FLAG_VERBOSE) {
2207 ret = para_printf(&crd->pb, "removing %s\n", name);
2208 if (ret < 0)
2209 return ret;
2210 }
2211 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2212 ret = osl_del_row(audio_file_table, row);
2213 if (ret < 0)
2214 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2215 else
2216 crd->num_removed++;
2217 return ret;
2218 }
2219
2220 static void com_rm_callback(int fd, const struct osl_object *query)
2221 {
2222 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2223 .pb = {
2224 .max_size = SHMMAX,
2225 .private_data = &fd,
2226 .max_size_handler = pass_buffer_as_shm
2227 }
2228 };
2229 int ret;
2230 struct pattern_match_data pmd = {
2231 .table = audio_file_table,
2232 .loop_col_num = AFTCOL_HASH,
2233 .match_col_num = AFTCOL_PATH,
2234 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2235 .size = query->size - sizeof(uint32_t)},
2236 .data = &crd,
2237 .action = remove_audio_file
2238 };
2239 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2240 pmd.fnmatch_flags |= FNM_PATHNAME;
2241 ret = for_each_matching_row(&pmd);
2242 if (ret < 0) {
2243 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2244 return;
2245 }
2246 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2247 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2248 else {
2249 if (crd.flags & RM_FLAG_VERBOSE)
2250 ret = para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2251 }
2252 if (ret >= 0 && crd.pb.offset)
2253 pass_buffer_as_shm(crd.pb.buf, crd.pb.offset, &fd);
2254 free(crd.pb.buf);
2255 }
2256
2257 /* TODO options: -r (recursive) */
2258 int com_rm(int fd, int argc, char * const * const argv)
2259 {
2260 uint32_t flags = 0;
2261 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2262 int i, ret;
2263
2264 for (i = 1; i < argc; i++) {
2265 const char *arg = argv[i];
2266 if (arg[0] != '-')
2267 break;
2268 if (!strcmp(arg, "--")) {
2269 i++;
2270 break;
2271 }
2272 if (!strcmp(arg, "-f")) {
2273 flags |= RM_FLAG_FORCE;
2274 continue;
2275 }
2276 if (!strcmp(arg, "-p")) {
2277 flags |= RM_FLAG_FNM_PATHNAME;
2278 continue;
2279 }
2280 if (!strcmp(arg, "-v")) {
2281 flags |= RM_FLAG_VERBOSE;
2282 continue;
2283 }
2284 break;
2285 }
2286 if (i >= argc)
2287 return -E_AFT_SYNTAX;
2288 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2289 com_rm_callback, send_result, &fd);
2290 if (ret < 0)
2291 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2292 return ret;
2293 }
2294
2295 /**
2296 * Flags used by the cpsi command.
2297 *
2298 * \sa com_cpsi().
2299 */
2300 enum cpsi_flags {
2301 /** Whether the lyrics id should be copied. */
2302 CPSI_FLAG_COPY_LYRICS_ID = 1,
2303 /** Whether the image id should be copied. */
2304 CPSI_FLAG_COPY_IMAGE_ID = 2,
2305 /** Whether the lastplayed time should be copied. */
2306 CPSI_FLAG_COPY_LASTPLAYED = 4,
2307 /** Whether the numplayed count should be copied. */
2308 CPSI_FLAG_COPY_NUMPLAYED = 8,
2309 /** Whether the attributes should be copied. */
2310 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2311 /** Activates verbose mode. */
2312 CPSI_FLAG_VERBOSE = 32,
2313 };
2314
2315 /** Data passed to the action handler of com_cpsi(). */
2316 struct cpsi_action_data {
2317 /** command line flags (see \ref cpsi_flags). */
2318 unsigned flags;
2319 /** Number of audio files changed. */
2320 unsigned num_copied;
2321 /** Message buffer. */
2322 struct para_buffer pb;
2323 /** Values are copied from here. */
2324 struct afs_info source_afsi;
2325 };
2326
2327 static int copy_selector_info(__a_unused struct osl_table *table,
2328 struct osl_row *row, const char *name, void *data)
2329 {
2330 struct cpsi_action_data *cad = data;
2331 struct osl_object target_afsi_obj;
2332 int ret;
2333 struct afs_info old_afsi, target_afsi;
2334 struct afsi_change_event_data aced;
2335
2336 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2337 if (ret < 0)
2338 return ret;
2339 load_afsi(&target_afsi, &target_afsi_obj);
2340 old_afsi = target_afsi;
2341 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2342 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2343 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2344 target_afsi.image_id = cad->source_afsi.image_id;
2345 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2346 target_afsi.last_played = cad->source_afsi.last_played;
2347 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2348 target_afsi.num_played = cad->source_afsi.num_played;
2349 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2350 target_afsi.attributes = cad->source_afsi.attributes;
2351 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2352 cad->num_copied++;
2353 if (cad->flags & CPSI_FLAG_VERBOSE) {
2354 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2355 if (ret < 0)
2356 return ret;
2357 }
2358 aced.aft_row = row;
2359 aced.old_afsi = &old_afsi;
2360 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2361 return 1;
2362 }
2363
2364 static void com_cpsi_callback(int fd, const struct osl_object *query)
2365 {
2366 struct cpsi_action_data cad = {
2367 .flags = *(unsigned *)query->data,
2368 .pb = {
2369 .max_size = SHMMAX,
2370 .private_data = &fd,
2371 .max_size_handler = pass_buffer_as_shm
2372 }
2373 };
2374 int ret;
2375 char *source_path = (char *)query->data + sizeof(cad.flags);
2376 struct pattern_match_data pmd = {
2377 .table = audio_file_table,
2378 .loop_col_num = AFTCOL_HASH,
2379 .match_col_num = AFTCOL_PATH,
2380 .patterns = {.data = source_path + strlen(source_path) + 1,
2381 .size = query->size - sizeof(cad.flags)
2382 - strlen(source_path) - 1},
2383 .data = &cad,
2384 .action = copy_selector_info
2385 };
2386
2387 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2388 if (ret < 0)
2389 goto out;
2390 ret = for_each_matching_row(&pmd);
2391 out:
2392 if (ret < 0)
2393 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2394 else if (cad.flags & CPSI_FLAG_VERBOSE) {
2395 if (cad.num_copied)
2396 para_printf(&cad.pb, "copied requested afsi from %s "
2397 "to %u files\n", source_path, cad.num_copied);
2398 else
2399 para_printf(&cad.pb, "nothing copied\n");
2400 }
2401 if (cad.pb.offset)
2402 pass_buffer_as_shm(cad.pb.buf, cad.pb.offset, &fd);
2403 free(cad.pb.buf);
2404 }
2405
2406 int com_cpsi(int fd, int argc, char * const * const argv)
2407 {
2408 unsigned flags = 0;
2409 int i, ret;
2410 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2411
2412 for (i = 1; i < argc; i++) {
2413 const char *arg = argv[i];
2414 if (arg[0] != '-')
2415 break;
2416 if (!strcmp(arg, "--")) {
2417 i++;
2418 break;
2419 }
2420 if (!strcmp(arg, "-y")) {
2421 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2422 continue;
2423 }
2424 if (!strcmp(arg, "-i")) {
2425 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2426 continue;
2427 }
2428 if (!strcmp(arg, "-l")) {
2429 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2430 continue;
2431 }
2432 if (!strcmp(arg, "-n")) {
2433 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2434 continue;
2435 }
2436 if (!strcmp(arg, "-a")) {
2437 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2438 continue;
2439 }
2440 if (!strcmp(arg, "-v")) {
2441 flags |= CPSI_FLAG_VERBOSE;
2442 continue;
2443 }
2444 break;
2445 }
2446 if (i + 1 >= argc) /* need at least souce file and pattern */
2447 return -E_AFT_SYNTAX;
2448 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2449 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2450 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2451 com_cpsi_callback, send_result, &fd);
2452 if (ret < 0)
2453 send_va_buffer(fd, "%s\n", para_strerror(-ret));
2454 return ret;
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 }
2536
2537 /**
2538 * Open the audio file table.
2539 *
2540 * \param dir The database directory.
2541 *
2542 * \return Standard.
2543 *
2544 * \sa osl_open_table().
2545 */
2546 static int aft_open(const char *dir)
2547 {
2548 int ret;
2549
2550 audio_file_table_desc.dir = dir;
2551 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2552 if (ret >= 0) {
2553 unsigned num;
2554 osl_get_num_rows(audio_file_table, &num);
2555 PARA_INFO_LOG("audio file table contains %d files\n", num);
2556 return ret;
2557 }
2558 PARA_INFO_LOG("failed to open audio file table\n");
2559 audio_file_table = NULL;
2560 if (ret >= 0 || is_errno(-ret, ENOENT))
2561 return 1;
2562 return ret;
2563 }
2564
2565 static int aft_create(const char *dir)
2566 {
2567 audio_file_table_desc.dir = dir;
2568 return osl_create_table(&audio_file_table_desc);
2569 }
2570
2571 static int clear_attribute(struct osl_row *row, void *data)
2572 {
2573 struct rmatt_event_data *red = data;
2574 struct afs_info afsi;
2575 struct osl_object obj;
2576 int ret = get_afsi_object_of_row(row, &obj);
2577 uint64_t mask = ~(1ULL << red->bitnum);
2578
2579 if (ret < 0)
2580 return ret;
2581 ret = load_afsi(&afsi, &obj);
2582 if (ret < 0)
2583 return ret;
2584 afsi.attributes &= mask;
2585 save_afsi(&afsi, &obj);
2586 return 1;
2587 }
2588
2589 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2590 void *data)
2591 {
2592 int ret;
2593
2594 switch(event) {
2595 case ATTRIBUTE_REMOVE: {
2596 const struct rmatt_event_data *red = data;
2597 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2598 "entries in the audio file table\n", red->name,
2599 red->bitnum);
2600 if (ret < 0)
2601 return ret;
2602 return audio_file_loop(data, clear_attribute);
2603 }
2604 default:
2605 return 1;
2606 }
2607 }
2608
2609 void aft_init(struct afs_table *t)
2610 {
2611 t->name = audio_file_table_desc.name;
2612 t->open = aft_open;
2613 t->close = aft_close;
2614 t->create = aft_create;
2615 t->event_handler = aft_event_handler;
2616 }