aft: Update status items on afs events.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14
15 #include "para.h"
16 #include "error.h"
17 #include "crypt.h"
18 #include "string.h"
19 #include "afh.h"
20 #include "afs.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24 #include "sideband.h"
25 #include "command.h"
26
27 static struct osl_table *audio_file_table;
28 static char *status_items;
29 static char *parser_friendly_status_items;
30
31 /** The different sorting methods of the ls command. */
32 enum ls_sorting_method {
33 /** -sp (default) */
34 LS_SORT_BY_PATH,
35 /** -ss */
36 LS_SORT_BY_SCORE,
37 /** -sl */
38 LS_SORT_BY_LAST_PLAYED,
39 /** -sn */
40 LS_SORT_BY_NUM_PLAYED,
41 /** -sf */
42 LS_SORT_BY_FREQUENCY,
43 /** -sc */
44 LS_SORT_BY_CHANNELS,
45 /** -si */
46 LS_SORT_BY_IMAGE_ID,
47 /** -sy */
48 LS_SORT_BY_LYRICS_ID,
49 /** -sb */
50 LS_SORT_BY_BITRATE,
51 /** -sd */
52 LS_SORT_BY_DURATION,
53 /** -sa */
54 LS_SORT_BY_AUDIO_FORMAT,
55 /** -sh */
56 LS_SORT_BY_HASH,
57 };
58
59 /** The different listing modes of the ls command. */
60 enum ls_listing_mode {
61 /** Default listing mode. */
62 LS_MODE_SHORT,
63 /** -l or -ll */
64 LS_MODE_LONG,
65 /** -lv */
66 LS_MODE_VERBOSE,
67 /** -lm */
68 LS_MODE_MBOX,
69 /** -lc */
70 LS_MODE_CHUNKS,
71 /** -lp */
72 LS_MODE_PARSER,
73 };
74
75 /* Data about one audio file. Needed for ls and stat output. */
76 struct ls_data {
77 /* Usual audio format handler information. */
78 struct afh_info afhi;
79 /* Audio file selector information. */
80 struct afs_info afsi;
81 /* The full path of the audio file. */
82 char *path;
83 /* The score value (if -a was given). */
84 long score;
85 /* The hash value of the audio file data. */
86 unsigned char *hash;
87 };
88
89 /** The flags accepted by the ls command. */
90 enum ls_flags {
91 /** -p */
92 LS_FLAG_FULL_PATH = 1,
93 /** -a */
94 LS_FLAG_ADMISSIBLE_ONLY = 2,
95 /** -r */
96 LS_FLAG_REVERSE = 4,
97 /** -d */
98 LS_FLAG_UNIXDATE = 8,
99 };
100
101 /**
102 * The size of the individual output fields of the ls command.
103 *
104 * These depend on the content being listed. For example, if each listed file
105 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
106 * is set to hh:mm:ss.
107 */
108 struct ls_widths {
109 /** size of the score field. */
110 unsigned short score_width;
111 /** size of the image id field. */
112 unsigned short image_id_width;
113 /** size of the lyrics id field. */
114 unsigned short lyrics_id_width;
115 /** size of the bitrate field. */
116 unsigned short bitrate_width;
117 /** size of the frequency field. */
118 unsigned short frequency_width;
119 /** size of the duration field. */
120 unsigned short duration_width;
121 /** size of the num played field. */
122 unsigned short num_played_width;
123 /** size of the amp field. */
124 unsigned short amp_width;
125 /** size of the audio format field. */
126 unsigned short audio_format_width;
127 };
128
129 /** Data passed from the ls command handler to its callback function. */
130 struct ls_options {
131 /** The given command line flags. */
132 unsigned flags;
133 /** The sorting method given at the command line. */
134 enum ls_sorting_method sorting;
135 /** The given listing mode (short, long, verbose, mbox). */
136 enum ls_listing_mode mode;
137 /** The arguments passed to the ls command. */
138 char **patterns;
139 /** Number of non-option arguments. */
140 int num_patterns;
141 /** Used for long listing mode to align the output fields. */
142 struct ls_widths widths;
143 /** Size of the \a data array. */
144 uint32_t array_size;
145 /** Number of used entries in the data array. */
146 uint32_t num_matching_paths;
147 /** Array of matching entries. */
148 struct ls_data *data;
149 /** Used to sort the array. */
150 struct ls_data **data_ptr;
151 };
152
153 /**
154 * Describes the layout of the mmapped-afs info struct.
155 *
156 * \sa struct afs_info.
157 */
158 enum afsi_offsets {
159 /** Where .last_played is stored. */
160 AFSI_LAST_PLAYED_OFFSET = 0,
161 /** Storage position of the attributes bitmap. */
162 AFSI_ATTRIBUTES_OFFSET = 8,
163 /** Storage position of the .num_played field. */
164 AFSI_NUM_PLAYED_OFFSET = 16,
165 /** Storage position of the .image_id field. */
166 AFSI_IMAGE_ID_OFFSET = 20,
167 /** Storage position of the .lyrics_id field. */
168 AFSI_LYRICS_ID_OFFSET = 24,
169 /** Storage position of the .audio_format_id field. */
170 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
171 /** Storage position of the amplification field. */
172 AFSI_AMP_OFFSET = 29,
173 /** 2 bytes reserved space for future usage. */
174 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
175 /** On-disk storage space needed. */
176 AFSI_SIZE = 32
177 };
178
179 /*
180 * Convert a struct afs_info to an osl object.
181 *
182 * \param afsi Pointer to the audio file info to be converted.
183 * \param obj Result pointer.
184 *
185 * \sa load_afsi().
186 */
187 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
188 {
189 char *buf = obj->data;
190
191 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
192 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
193 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
194 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
195 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
196 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
197 afsi->audio_format_id);
198 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
199 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
200 }
201
202 /*
203 * Get the audio file selector info struct stored in an osl object.
204 *
205 * \param afsi Points to the audio_file info structure to be filled in.
206 * \param obj The osl object holding the data.
207 *
208 * \return Standard.
209 *
210 * \sa save_afsi().
211 */
212 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
213 {
214 char *buf = obj->data;
215 if (obj->size < AFSI_SIZE)
216 return -E_BAD_AFSI;
217 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
218 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
219 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
220 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
221 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
222 afsi->audio_format_id = read_u8(buf +
223 AFSI_AUDIO_FORMAT_ID_OFFSET);
224 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
225 return 1;
226 }
227
228 /** The columns of the audio file table. */
229 enum audio_file_table_columns {
230 /** The hash on the content of the audio file. */
231 AFTCOL_HASH,
232 /** The full path in the filesystem. */
233 AFTCOL_PATH,
234 /** The audio file selector info. */
235 AFTCOL_AFSI,
236 /** The audio format handler info. */
237 AFTCOL_AFHI,
238 /** The chunk table info and the chunk table of the audio file. */
239 AFTCOL_CHUNKS,
240 /** The number of columns of this table. */
241 NUM_AFT_COLUMNS
242 };
243
244 /**
245 * Compare two osl objects pointing to hash values.
246 *
247 * \param obj1 Pointer to the first hash object.
248 * \param obj2 Pointer to the second hash object.
249 *
250 * \return The values required for an osl compare function.
251 *
252 * \sa osl_compare_func, uint32_compare().
253 */
254 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
255 {
256 return hash_compare((unsigned char *)obj1->data, (unsigned char *)obj2->data);
257 }
258
259 static struct osl_column_description aft_cols[] = {
260 [AFTCOL_HASH] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
263 .name = "hash",
264 .compare_function = aft_hash_compare,
265 .data_size = HASH_SIZE
266 },
267 [AFTCOL_PATH] = {
268 .storage_type = OSL_MAPPED_STORAGE,
269 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
270 .name = "path",
271 .compare_function = string_compare,
272 },
273 [AFTCOL_AFSI] = {
274 .storage_type = OSL_MAPPED_STORAGE,
275 .storage_flags = OSL_FIXED_SIZE,
276 .name = "afs_info",
277 .data_size = AFSI_SIZE
278 },
279 [AFTCOL_AFHI] = {
280 .storage_type = OSL_MAPPED_STORAGE,
281 .name = "afh_info",
282 },
283 [AFTCOL_CHUNKS] = {
284 .storage_type = OSL_DISK_STORAGE,
285 .name = "chunks",
286 }
287 };
288
289 static struct osl_table_description audio_file_table_desc = {
290 .name = "audio_files",
291 .num_columns = NUM_AFT_COLUMNS,
292 .flags = OSL_LARGE_TABLE,
293 .column_descriptions = aft_cols
294 };
295
296 /* We don't want dot or dot-dot anywhere. */
297 static int verify_dotfile(const char *rest)
298 {
299 /*
300 * The first character was '.', but that has already been discarded, we
301 * now test the rest.
302 */
303 switch (*rest) {
304 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
305 return -1;
306 case '.': /* path start with /foo/.. */
307 if (rest[1] == '\0' || rest[1] == '/')
308 return -1; /* /foo/.. or /foo/../bar are not ok */
309 /* /foo/..bar is ok */
310 }
311 return 1;
312 }
313
314 /*
315 * We fundamentally don't like some paths: We don't want double slashes or
316 * slashes at the end that can make pathnames ambiguous.
317 */
318 static int verify_path(const char *orig_path, char **resolved_path)
319 {
320 char c;
321 size_t len;
322 char *path;
323
324 if (*orig_path != '/') /* we only accept absolute paths */
325 return -E_BAD_PATH;
326 len = strlen(orig_path);
327 *resolved_path = para_strdup(orig_path);
328 path = *resolved_path;
329 while (len > 1 && path[--len] == '/')
330 path[len] = '\0'; /* remove slash at the end */
331 c = *path++;
332 while (c) {
333 if (c == '/') {
334 c = *path++;
335 switch (c) {
336 case '/': /* double slash */
337 goto bad_path;
338 case '.':
339 if (verify_dotfile(path) < 0)
340 goto bad_path;
341 default:
342 continue;
343 }
344 }
345 c = *path++;
346 }
347 return 1;
348 bad_path:
349 free(*resolved_path);
350 return -E_BAD_PATH;
351 }
352
353 /** The on-disk layout of a afhi struct. */
354 enum afhi_offsets {
355 /** Where the number of seconds is stored. */
356 AFHI_SECONDS_TOTAL_OFFSET = 0,
357 /** Position of the bitrate. */
358 AFHI_BITRATE_OFFSET = 4,
359 /** Position of the frequency. */
360 AFHI_FREQUENCY_OFFSET = 8,
361 /** Was: Location of the audio file header. */
362 AFHI_UNUSED1_OFFSET = 12,
363 /* Length of the audio file header. Zero means: No header. */
364 AFHI_HEADER_LEN_OFFSET = 16,
365 /** The total number of chunks (4 bytes). */
366 CHUNKS_TOTAL_OFFSET = 20,
367 /** The length of the audio file header (4 bytes). */
368 HEADER_LEN_OFFSET = 24,
369 /** Was: The start of the audio file header (4 bytes). */
370 AFHI_UNUSED2_OFFSET = 28,
371 /** The seconds part of the chunk time (4 bytes). */
372 CHUNK_TV_TV_SEC_OFFSET = 32,
373 /** The microseconds part of the chunk time (4 bytes). */
374 CHUNK_TV_TV_USEC_OFFSET = 36,
375 /** Number of channels is stored here. (1 byte) */
376 AFHI_CHANNELS_OFFSET = 40,
377 /** The tag info position. */
378 AFHI_INFO_STRING_OFFSET = 41,
379 /** Minimal on-disk size of a valid afhi struct. */
380 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
381 };
382
383 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
384 {
385 if (!afhi)
386 return 0;
387 return MIN_AFHI_SIZE
388 + strlen(afhi->techinfo)
389 + strlen(afhi->tags.artist)
390 + strlen(afhi->tags.title)
391 + strlen(afhi->tags.year)
392 + strlen(afhi->tags.album)
393 + strlen(afhi->tags.comment);
394 }
395
396 static void save_afhi(struct afh_info *afhi, char *buf)
397 {
398 char *p;
399
400 if (!afhi)
401 return;
402 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
403 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
404 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
405 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
406 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
407 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
408 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
409 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
410 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
411 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
412 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
413 p = buf + AFHI_INFO_STRING_OFFSET;
414 /* The sprintf's below are OK as our caller made sure that buf is large enough */
415 p += sprintf(p, "%s", afhi->techinfo) + 1;
416 p += sprintf(p, "%s", afhi->tags.artist) + 1;
417 p += sprintf(p, "%s", afhi->tags.title) + 1;
418 p += sprintf(p, "%s", afhi->tags.year) + 1;
419 p += sprintf(p, "%s", afhi->tags.album) + 1;
420 sprintf(p, "%s", afhi->tags.comment);
421 }
422
423 static void load_afhi(const char *buf, struct afh_info *afhi)
424 {
425 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
426 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
427 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
428 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
429 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
430 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
431 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
432 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
433 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
434 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
435 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
436 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
437 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
438 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
439 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
440 }
441
442 static unsigned sizeof_chunk_table(struct afh_info *afhi)
443 {
444 if (!afhi)
445 return 0;
446 return 4 * (afhi->chunks_total + 1);
447 }
448
449 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
450 {
451 int i;
452 uint32_t max = 0, old = 0;
453
454 for (i = 0; i <= afhi->chunks_total; i++) {
455 uint32_t val = afhi->chunk_table[i];
456 write_u32(buf + 4 * i, val);
457 /*
458 * If the first chunk is the header, do not consider it for the
459 * calculation of the largest chunk size.
460 */
461 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
462 old = val;
463 continue;
464 }
465 max = PARA_MAX(max, val - old);
466 old = val;
467 }
468 return max;
469 }
470
471 static void load_chunk_table(struct afh_info *afhi, char *buf)
472 {
473 int i;
474
475 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
476 for (i = 0; i <= afhi->chunks_total; i++)
477 afhi->chunk_table[i] = read_u32(buf + 4 * i);
478 }
479
480 /**
481 * Get the row of the audio file table corresponding to the given path.
482 *
483 * \param path The full path of the audio file.
484 * \param row Result pointer.
485 *
486 * \return Standard.
487 */
488 int aft_get_row_of_path(const char *path, struct osl_row **row)
489 {
490 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
491
492 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
493 }
494
495 /**
496 * Get the row of the audio file table corresponding to the given hash value.
497 *
498 * \param hash The hash value of the desired audio file.
499 * \param row Result pointer.
500 *
501 * \return Standard.
502 */
503 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
504 {
505 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
506 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
507 }
508
509 /*
510 * Get the audio file selector info object of a row.
511 *
512 * \param row Pointer to a row in the audio file table.
513 * \param obj Result pointer.
514 *
515 * \return Standard.
516 */
517 static int get_afsi_object_of_row(const struct osl_row *row,
518 struct osl_object *obj)
519 {
520 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
521 }
522
523 /**
524 * Get the osl object holding the audio file selector info, given a path.
525 *
526 *
527 * \param path The full path of the audio file.
528 * \param obj Result pointer.
529 *
530 * \return Positive on success, negative on errors.
531 */
532 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
533 {
534 struct osl_row *row;
535 int ret = aft_get_row_of_path(path, &row);
536 if (ret < 0)
537 return ret;
538 return get_afsi_object_of_row(row, obj);
539 }
540
541 /**
542 * Get the audio file selector info, given a row of the audio file table.
543 *
544 * \param row Pointer to a row in the audio file table.
545 * \param afsi Result pointer.
546 *
547 * \return Positive on success, negative on errors.
548 */
549 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
550 {
551 struct osl_object obj;
552 int ret = get_afsi_object_of_row(row, &obj);
553 if (ret < 0)
554 return ret;
555 return load_afsi(afsi, &obj);
556 }
557
558 /*
559 * Get the audio file selector info, given the path of an audio table.
560 *
561 * \param path The full path of the audio file.
562 * \param afsi Result pointer.
563 *
564 * \return Standard.
565 */
566 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
567 {
568 struct osl_object obj;
569 int ret = get_afsi_object_of_path(path, &obj);
570 if (ret < 0)
571 return ret;
572 return load_afsi(afsi, &obj);
573 }
574
575 /**
576 * Get the path of an audio file, given a row of the audio file table.
577 *
578 * \param row Pointer to a row in the audio file table.
579 * \param path Result pointer.
580 *
581 * The result is a pointer to mmapped data. The caller must not attempt
582 * to free it.
583 *
584 * \return Standard.
585 */
586 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
587 {
588 struct osl_object path_obj;
589 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
590 &path_obj));
591 if (ret < 0)
592 return ret;
593 *path = path_obj.data;
594 return 1;
595 }
596
597 /**
598 * Get the object containing the hash value of an audio file, given a row.
599 *
600 * \param row Pointer to a row of the audio file table.
601 * \param obj Result pointer.
602 *
603 * \return The return value of the underlying call to osl_get_object().
604 *
605 * \sa get_hash_of_row().
606 */
607 static int get_hash_object_of_aft_row(const struct osl_row *row,
608 struct osl_object *obj)
609 {
610 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
611 }
612
613 /**
614 * Get the hash value of an audio file, given a row of the audio file table.
615 *
616 * \param row Pointer to a row of the audio file table.
617 * \param hash Result pointer.
618 *
619 * \a hash points to mapped data and must not be freed by the caller.
620 *
621 * \return The return value of the underlying call to
622 * get_hash_object_of_aft_row().
623 */
624 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
625 {
626 struct osl_object obj;
627 int ret = get_hash_object_of_aft_row(row, &obj);
628
629 if (ret < 0)
630 return ret;
631 *hash = obj.data;
632 return 1;
633 }
634
635 /**
636 * Get the audio format handler info, given a row of the audio file table.
637 *
638 * \param row Pointer to a row of the audio file table.
639 * \param afhi Result pointer.
640 *
641 * \return The return value of the underlying call to osl_get_object().
642 *
643 * \sa get_chunk_table_of_row().
644 */
645 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
646 {
647 struct osl_object obj;
648 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
649 &obj));
650 if (ret < 0)
651 return ret;
652 load_afhi(obj.data, afhi);
653 return 1;
654 }
655
656 /* returns shmid on success */
657 static int save_afd(struct audio_file_data *afd)
658 {
659 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
660 int shmid, ret = shm_new(size);
661 void *shm_afd;
662 char *buf;
663
664 if (ret < 0)
665 return ret;
666 shmid = ret;
667 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
668 if (ret < 0)
669 goto err;
670 buf = shm_afd;
671 buf += sizeof(*afd);
672 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
673 *(struct audio_file_data *)shm_afd = *afd;
674 shm_detach(shm_afd);
675 return shmid;
676 err:
677 shm_destroy(shmid);
678 return ret;
679 }
680
681 /**
682 * Extract a afd stored in a shared memory area.
683 *
684 * Attach the shared memory area given by \a shmid, load the audio file data
685 * stored therein and detach the area afterwards. Called by vss, after
686 * receiving a positive response to the request for the next audio file.
687 +
688 * \param shmid The identifier of the shared memory area containing the afd.
689 * \param afd Result pointer.
690 *
691 * \return Standard.
692 */
693 int load_afd(int shmid, struct audio_file_data *afd)
694 {
695 void *shm_afd;
696 char *buf;
697 int ret;
698
699 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
700 if (ret < 0)
701 return ret;
702 *afd = *(struct audio_file_data *)shm_afd;
703 buf = shm_afd;
704 buf += sizeof(*afd);
705 load_chunk_table(&afd->afhi, buf);
706 shm_detach(shm_afd);
707 return 1;
708 }
709
710 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
711 time_t current_time, enum ls_listing_mode lm)
712 {
713 struct tm t;
714
715 if (!localtime_r((time_t *)seconds, &t))
716 return -E_LOCALTIME;
717 if (lm == LS_MODE_MBOX) {
718 if (!strftime(buf, size, "%c", &t))
719 return -E_STRFTIME;
720 return 1;
721 }
722 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
723 if (!strftime(buf, size, "%b %e %k:%M", &t))
724 return -E_STRFTIME;
725 return 1;
726 }
727 if (!strftime(buf, size, "%b %e %Y", &t))
728 return -E_STRFTIME;
729 return 1;
730 }
731
732 /** Compute the number of (decimal) digits of a number. */
733 #define GET_NUM_DIGITS(x, num) { \
734 typeof((x)) _tmp = PARA_ABS(x); \
735 *num = 1; \
736 if ((_tmp)) \
737 while ((_tmp) > 9) { \
738 (_tmp) /= 10; \
739 (*num)++; \
740 } \
741 }
742
743 __a_const static short unsigned get_duration_width(int seconds)
744 {
745 short unsigned width;
746 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
747
748 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
749 return 4 + (mins > 9);
750 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
751 GET_NUM_DIGITS(hours, &width);
752 return width + 6;
753 }
754
755 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
756 {
757 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
758 short unsigned max_width;
759
760 if (!hours) { /* m:ss or mm:ss */
761 max_width = opts->mode == LS_MODE_LONG?
762 opts->widths.duration_width : 4;
763 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
764 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
765 max_width = opts->mode == LS_MODE_LONG?
766 opts->widths.duration_width : 7;
767 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
768 seconds % 60);
769 }
770 }
771
772 static int write_attribute_items(struct para_buffer *b,
773 const char *att_bitmap, struct afs_info *afsi)
774 {
775 char *att_text;
776 int ret;
777
778 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
779 if (ret < 0)
780 return ret;
781 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
782 if (ret < 0)
783 return ret;
784 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
785 free(att_text);
786 return ret;
787 }
788
789 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
790 {
791 char *lyrics_name;
792 int ret;
793
794 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
795 if (ret < 0)
796 return ret;
797 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
798 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
799 lyrics_name : "(none)");
800 }
801
802 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
803 {
804 char *image_name;
805 int ret;
806
807 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
808 if (ret < 0)
809 return ret;
810 img_get_name_by_id(afsi->image_id, &image_name);
811 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
812 image_name : "(none)");
813 }
814
815 static int write_filename_items(struct para_buffer *b, const char *path,
816 unsigned flags)
817 {
818 char *val;
819 int ret;
820
821 if (!(flags & LS_FLAG_FULL_PATH))
822 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
823 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
824 if (ret < 0)
825 return ret;
826 val = para_basename(path);
827 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
828 if (ret < 0)
829 return ret;
830 val = para_dirname(path);
831 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
832 free(val);
833 return ret;
834 }
835
836 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
837 {
838 struct osl_object chunk_table_obj;
839 struct osl_row *aft_row;
840 int ret, i;
841 char *buf;
842
843 ret = aft_get_row_of_hash(d->hash, &aft_row);
844 if (ret < 0)
845 return ret;
846 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
847 AFTCOL_CHUNKS, &chunk_table_obj));
848 if (ret < 0)
849 return ret;
850 ret = para_printf(b, "%s\n"
851 "chunk_time: %lu:%lu\nchunk_offsets: ",
852 d->path,
853 (long unsigned) d->afhi.chunk_tv.tv_sec,
854 (long unsigned) d->afhi.chunk_tv.tv_usec
855 );
856 if (ret < 0)
857 goto out;
858 buf = chunk_table_obj.data;
859 for (i = 0; i <= d->afhi.chunks_total; i++) {
860 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
861 if (ret < 0)
862 goto out;
863 }
864 ret = para_printf(b, "\n");
865 out:
866 osl_close_disk_object(&chunk_table_obj);
867 return ret;
868 }
869
870 static int write_score(struct para_buffer *b, struct ls_data *d,
871 struct ls_options *opts)
872 {
873 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
874 return 0;
875 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
876 }
877
878 static int print_list_item(struct ls_data *d, struct ls_options *opts,
879 struct para_buffer *b, time_t current_time)
880 {
881 int ret;
882 char att_buf[65];
883 char last_played_time[30];
884 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
885 struct afs_info *afsi = &d->afsi;
886 struct afh_info *afhi = &d->afhi;
887 char asc_hash[2 * HASH_SIZE + 1];
888
889 if (opts->mode == LS_MODE_SHORT) {
890 ret = para_printf(b, "%s\n", d->path);
891 goto out;
892 }
893 if (opts->mode == LS_MODE_CHUNKS) {
894 ret = print_chunk_table(d, b);
895 goto out;
896 }
897 get_attribute_bitmap(&afsi->attributes, att_buf);
898 if (opts->flags & LS_FLAG_UNIXDATE)
899 sprintf(last_played_time, "%llu",
900 (long long unsigned)afsi->last_played);
901 else {
902 ret = get_local_time(&afsi->last_played, last_played_time,
903 sizeof(last_played_time), current_time, opts->mode);
904 if (ret < 0)
905 goto out;
906 }
907 get_duration_buf(afhi->seconds_total, duration_buf, opts);
908 if (opts->mode == LS_MODE_LONG) {
909 struct ls_widths *w = &opts->widths;
910 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
911 ret = para_printf(b, "%*li ",
912 opts->widths.score_width, d->score);
913 if (ret < 0)
914 goto out;
915 }
916 ret = para_printf(b,
917 "%s " /* attributes */
918 "%*u " /* amp */
919 "%*d " /* image_id */
920 "%*d " /* lyrics_id */
921 "%*d " /* bitrate */
922 "%*s " /* audio format */
923 "%*d " /* frequency */
924 "%d " /* channels */
925 "%s " /* duration */
926 "%*d " /* num_played */
927 "%s " /* last_played */
928 "%s\n", /* path */
929 att_buf,
930 w->amp_width, afsi->amp,
931 w->image_id_width, afsi->image_id,
932 w->lyrics_id_width, afsi->lyrics_id,
933 w->bitrate_width, afhi->bitrate,
934 w->audio_format_width,
935 audio_format_name(afsi->audio_format_id),
936 w->frequency_width, afhi->frequency,
937 afhi->channels,
938 duration_buf,
939 w->num_played_width, afsi->num_played,
940 last_played_time,
941 d->path
942 );
943 goto out;
944 }
945 if (opts->mode == LS_MODE_MBOX) {
946 const char *bn = para_basename(d->path);
947 ret = para_printf(b,
948 "From foo@localhost %s\n"
949 "Received: from\nTo: bar\nFrom: a\n"
950 "Subject: %s\n\n",
951 last_played_time,
952 bn? bn : "?");
953 if (ret < 0)
954 goto out;
955 }
956 ret = write_filename_items(b, d->path, opts->flags);
957 if (ret < 0)
958 goto out;
959 ret = write_score(b, d, opts);
960 if (ret < 0)
961 goto out;
962 ret = write_attribute_items(b, att_buf, afsi);
963 if (ret < 0)
964 goto out;
965 ret = write_image_items(b, afsi);
966 if (ret < 0)
967 goto out;
968 ret = write_lyrics_items(b, afsi);
969 if (ret < 0)
970 goto out;
971 hash_to_asc(d->hash, asc_hash);
972 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
973 if (ret < 0)
974 goto out;
975 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
979 audio_format_name(afsi->audio_format_id));
980 if (ret < 0)
981 goto out;
982 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
992 afhi->seconds_total);
993 if (ret < 0)
994 goto out;
995 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
996 if (ret < 0)
997 goto out;
998 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
999 if (ret < 0)
1000 goto out;
1001 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
1002 if (ret < 0)
1003 goto out;
1004 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
1005 tv2ms(&afhi->chunk_tv));
1006 if (ret < 0)
1007 goto out;
1008 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
1009 afhi->chunks_total);
1010 if (ret < 0)
1011 goto out;
1012 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
1013 if (ret < 0)
1014 goto out;
1015 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1016 if (ret < 0)
1017 goto out;
1018 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1019 if (ret < 0)
1020 goto out;
1021 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1022 if (ret < 0)
1023 goto out;
1024 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1025 if (ret < 0)
1026 goto out;
1027 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1028 if (ret < 0)
1029 goto out;
1030 if (opts->mode == LS_MODE_MBOX) {
1031 struct osl_object lyrics_def;
1032 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1033 if (lyrics_def.data) {
1034 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1035 (char *)lyrics_def.data);
1036 osl_close_disk_object(&lyrics_def);
1037 }
1038 }
1039 out:
1040 return ret;
1041 }
1042
1043 static struct ls_data status_item_ls_data;
1044 static struct osl_row *current_aft_row;
1045
1046 static int make_status_items(void)
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 = shm_get_shmmax() - 1};
1053 time_t current_time;
1054 int ret;
1055
1056 time(&current_time);
1057 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1058 if (ret < 0)
1059 return ret;
1060 free(status_items);
1061 status_items = pb.buf;
1062 memset(&pb, 0, sizeof(pb));
1063 pb.max_size = shm_get_shmmax() - 1;
1064 pb.flags = PBF_SIZE_PREFIX;
1065 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1066 if (ret < 0) {
1067 free(status_items);
1068 status_items = NULL;
1069 return ret;
1070 }
1071 free(parser_friendly_status_items);
1072 parser_friendly_status_items = pb.buf;
1073 return 1;
1074 }
1075
1076 /**
1077 * Open the audio file with highest score and set up an afd structure.
1078 *
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 audio_file_data *afd)
1088 {
1089 unsigned char file_hash[HASH_SIZE];
1090 struct osl_object afsi_obj;
1091 struct afs_info new_afsi;
1092 int ret;
1093 struct afsi_change_event_data aced;
1094 struct osl_object map, chunk_table_obj;
1095 struct ls_data *d = &status_item_ls_data;
1096 again:
1097 ret = score_get_best(&current_aft_row, &d->score);
1098 if (ret < 0)
1099 return ret;
1100 ret = get_hash_of_row(current_aft_row, &d->hash);
1101 if (ret < 0)
1102 return ret;
1103 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1104 if (ret < 0)
1105 return ret;
1106 PARA_NOTICE_LOG("%s\n", d->path);
1107 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1108 if (ret < 0)
1109 return ret;
1110 ret = load_afsi(&d->afsi, &afsi_obj);
1111 if (ret < 0)
1112 return ret;
1113 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1114 if (ret < 0)
1115 return ret;
1116 d->afhi = afd->afhi;
1117 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1118 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1119 AFTCOL_CHUNKS, &chunk_table_obj));
1120 if (ret < 0)
1121 return ret;
1122 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1123 if (ret < 0)
1124 goto err;
1125 hash_function(map.data, map.size, file_hash);
1126 ret = hash_compare(file_hash, d->hash);
1127 para_munmap(map.data, map.size);
1128 if (ret) {
1129 ret = -E_HASH_MISMATCH;
1130 goto err;
1131 }
1132 new_afsi = d->afsi;
1133 new_afsi.num_played++;
1134 new_afsi.last_played = time(NULL);
1135 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1136
1137 afd->audio_format_id = d->afsi.audio_format_id;
1138 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1139 aced.aft_row = current_aft_row;
1140 aced.old_afsi = &d->afsi;
1141 /*
1142 * No need to update the status items as the AFSI_CHANGE event will
1143 * recreate them.
1144 */
1145 afs_event(AFSI_CHANGE, NULL, &aced);
1146 ret = save_afd(afd);
1147 err:
1148 free(afd->afhi.chunk_table);
1149 osl_close_disk_object(&chunk_table_obj);
1150 if (ret < 0) {
1151 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1152 ret = score_delete(current_aft_row);
1153 if (ret >= 0)
1154 goto again;
1155 }
1156 return ret;
1157 }
1158
1159 static int ls_audio_format_compare(const void *a, const void *b)
1160 {
1161 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1162 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1163 }
1164
1165 static int ls_duration_compare(const void *a, const void *b)
1166 {
1167 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1168 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1169 }
1170
1171 static int ls_bitrate_compare(const void *a, const void *b)
1172 {
1173 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1174 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1175 }
1176
1177 static int ls_lyrics_id_compare(const void *a, const void *b)
1178 {
1179 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1180 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1181 }
1182
1183 static int ls_image_id_compare(const void *a, const void *b)
1184 {
1185 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1186 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1187 }
1188
1189 static int ls_channels_compare(const void *a, const void *b)
1190 {
1191 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1192 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1193 }
1194
1195 static int ls_frequency_compare(const void *a, const void *b)
1196 {
1197 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1198 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1199 }
1200
1201 static int ls_num_played_compare(const void *a, const void *b)
1202 {
1203 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1204 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1205 }
1206
1207 static int ls_last_played_compare(const void *a, const void *b)
1208 {
1209 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1210 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1211 }
1212
1213 static int ls_score_compare(const void *a, const void *b)
1214 {
1215 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1216 return NUM_COMPARE(d1->score, d2->score);
1217 }
1218
1219 static int ls_path_compare(const void *a, const void *b)
1220 {
1221 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1222 return strcmp(d1->path, d2->path);
1223 }
1224
1225 static int sort_matching_paths(struct ls_options *options)
1226 {
1227 size_t nmemb = options->num_matching_paths;
1228 size_t size = sizeof(*options->data_ptr);
1229 int (*compar)(const void *, const void *);
1230 int i;
1231
1232 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1233 for (i = 0; i < nmemb; i++)
1234 options->data_ptr[i] = options->data + i;
1235
1236 /* In these cases the array is already sorted */
1237 if (options->sorting == LS_SORT_BY_PATH
1238 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1239 && (options->flags & LS_FLAG_FULL_PATH))
1240 return 1;
1241 if (options->sorting == LS_SORT_BY_SCORE &&
1242 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1243 return 1;
1244
1245 switch (options->sorting) {
1246 case LS_SORT_BY_PATH:
1247 compar = ls_path_compare; break;
1248 case LS_SORT_BY_SCORE:
1249 compar = ls_score_compare; break;
1250 case LS_SORT_BY_LAST_PLAYED:
1251 compar = ls_last_played_compare; break;
1252 case LS_SORT_BY_NUM_PLAYED:
1253 compar = ls_num_played_compare; break;
1254 case LS_SORT_BY_FREQUENCY:
1255 compar = ls_frequency_compare; break;
1256 case LS_SORT_BY_CHANNELS:
1257 compar = ls_channels_compare; break;
1258 case LS_SORT_BY_IMAGE_ID:
1259 compar = ls_image_id_compare; break;
1260 case LS_SORT_BY_LYRICS_ID:
1261 compar = ls_lyrics_id_compare; break;
1262 case LS_SORT_BY_BITRATE:
1263 compar = ls_bitrate_compare; break;
1264 case LS_SORT_BY_DURATION:
1265 compar = ls_duration_compare; break;
1266 case LS_SORT_BY_AUDIO_FORMAT:
1267 compar = ls_audio_format_compare; break;
1268 default:
1269 return -E_BAD_SORT;
1270 }
1271 qsort(options->data_ptr, nmemb, size, compar);
1272 return 1;
1273 }
1274
1275 /* row is either an aft_row or a row of the score table */
1276 /* TODO: Only compute widths if we need them */
1277 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1278 {
1279 int ret, i;
1280 struct ls_options *options = ls_opts;
1281 struct ls_data *d;
1282 struct ls_widths *w;
1283 unsigned short num_digits;
1284 unsigned tmp;
1285 struct osl_row *aft_row;
1286 long score;
1287 char *path;
1288
1289 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1290 ret = get_score_and_aft_row(row, &score, &aft_row);
1291 if (ret < 0)
1292 return ret;
1293 } else {
1294 aft_row = row;
1295 score = 0;
1296 }
1297 ret = get_audio_file_path_of_row(aft_row, &path);
1298 if (ret < 0)
1299 return ret;
1300 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1301 char *p = strrchr(path, '/');
1302 if (p)
1303 path = p + 1;
1304 }
1305 if (options->num_patterns) {
1306 for (i = 0; i < options->num_patterns; i++) {
1307 ret = fnmatch(options->patterns[i], path, 0);
1308 if (!ret)
1309 break;
1310 if (ret == FNM_NOMATCH)
1311 continue;
1312 return -E_FNMATCH;
1313 }
1314 if (i >= options->num_patterns) /* no match */
1315 return 1;
1316 }
1317 tmp = options->num_matching_paths++;
1318 if (options->num_matching_paths > options->array_size) {
1319 options->array_size++;
1320 options->array_size *= 2;
1321 options->data = para_realloc(options->data, options->array_size
1322 * sizeof(*options->data));
1323 }
1324 d = options->data + tmp;
1325 ret = get_afsi_of_row(aft_row, &d->afsi);
1326 if (ret < 0)
1327 return ret;
1328 ret = get_afhi_of_row(aft_row, &d->afhi);
1329 if (ret < 0)
1330 return ret;
1331 d->path = path;
1332 ret = get_hash_of_row(aft_row, &d->hash);
1333 if (ret < 0)
1334 goto err;
1335 w = &options->widths;
1336 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1337 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1338 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1339 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1340 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1341 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1342 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1343 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1344 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1345 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1346 /* get the number of chars to print this amount of time */
1347 num_digits = get_duration_width(d->afhi.seconds_total);
1348 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1349 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1350 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1351 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1352 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1353 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1354 GET_NUM_DIGITS(score, &num_digits);
1355 num_digits++; /* add one for the sign (space or "-") */
1356 w->score_width = PARA_MAX(w->score_width, num_digits);
1357 d->score = score;
1358 }
1359 return 1;
1360 err:
1361 return ret;
1362 }
1363
1364 static void com_ls_callback(int fd, const struct osl_object *query)
1365 {
1366 struct ls_options *opts = query->data;
1367 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1368 struct para_buffer b = {
1369 .max_size = shm_get_shmmax(),
1370 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1371 .max_size_handler = afs_max_size_handler,
1372 .private_data = &(struct afs_max_size_handler_data) {
1373 .fd = fd,
1374 .band = SBD_OUTPUT
1375 }
1376 };
1377 int i = 0, ret;
1378 time_t current_time;
1379
1380 if (opts->num_patterns) {
1381 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1382 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1383 opts->patterns[i] = p;
1384 p += strlen(p) + 1;
1385 }
1386 } else
1387 opts->patterns = NULL;
1388 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1389 ret = admissible_file_loop(opts, prepare_ls_row);
1390 else
1391 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1392 prepare_ls_row));
1393 if (ret < 0)
1394 goto out;
1395 if (opts->num_matching_paths == 0) {
1396 if (opts->num_patterns > 0)
1397 para_printf(&b, "no matches\n");
1398 goto out;
1399 }
1400 ret = sort_matching_paths(opts);
1401 if (ret < 0)
1402 goto out;
1403 time(&current_time);
1404 if (opts->flags & LS_FLAG_REVERSE)
1405 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1406 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1407 if (ret < 0)
1408 goto out;
1409 }
1410 else
1411 for (i = 0; i < opts->num_matching_paths; i++) {
1412 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1413 if (ret < 0)
1414 goto out;
1415 }
1416 out:
1417 if (b.offset)
1418 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1419 free(b.buf);
1420 free(opts->data);
1421 free(opts->data_ptr);
1422 free(opts->patterns);
1423 }
1424
1425 /*
1426 * TODO: flags -h (sort by hash)
1427 */
1428 int com_ls(struct command_context *cc)
1429 {
1430 int i, ret;
1431 unsigned flags = 0;
1432 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1433 enum ls_listing_mode mode = LS_MODE_SHORT;
1434 struct ls_options opts = {.patterns = NULL};
1435 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1436
1437 for (i = 1; i < cc->argc; i++) {
1438 const char *arg = cc->argv[i];
1439 if (arg[0] != '-')
1440 break;
1441 if (!strcmp(arg, "--")) {
1442 i++;
1443 break;
1444 }
1445 if (!strncmp(arg, "-l", 2)) {
1446 if (!*(arg + 2)) {
1447 mode = LS_MODE_LONG;
1448 continue;
1449 }
1450 if (*(arg + 3))
1451 return -E_AFT_SYNTAX;
1452 switch(*(arg + 2)) {
1453 case 's':
1454 mode = LS_MODE_SHORT;
1455 continue;
1456 case 'l':
1457 mode = LS_MODE_LONG;
1458 continue;
1459 case 'v':
1460 mode = LS_MODE_VERBOSE;
1461 continue;
1462 case 'm':
1463 mode = LS_MODE_MBOX;
1464 continue;
1465 case 'c':
1466 mode = LS_MODE_CHUNKS;
1467 continue;
1468 case 'p':
1469 mode = LS_MODE_PARSER;
1470 continue;
1471 default:
1472 return -E_AFT_SYNTAX;
1473 }
1474 }
1475 if (!strcmp(arg, "-p")) {
1476 flags |= LS_FLAG_FULL_PATH;
1477 continue;
1478 }
1479 if (!strcmp(arg, "-a")) {
1480 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1481 continue;
1482 }
1483 if (!strcmp(arg, "-r")) {
1484 flags |= LS_FLAG_REVERSE;
1485 continue;
1486 }
1487 if (!strcmp(arg, "-d")) {
1488 flags |= LS_FLAG_UNIXDATE;
1489 continue;
1490 }
1491 if (!strncmp(arg, "-s", 2)) {
1492 if (!*(arg + 2) || *(arg + 3))
1493 return -E_AFT_SYNTAX;
1494 switch(*(arg + 2)) {
1495 case 'p':
1496 sort = LS_SORT_BY_PATH;
1497 continue;
1498 case 's': /* -ss implies -a */
1499 sort = LS_SORT_BY_SCORE;
1500 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1501 continue;
1502 case 'l':
1503 sort = LS_SORT_BY_LAST_PLAYED;
1504 continue;
1505 case 'n':
1506 sort = LS_SORT_BY_NUM_PLAYED;
1507 continue;
1508 case 'f':
1509 sort = LS_SORT_BY_FREQUENCY;
1510 continue;
1511 case 'c':
1512 sort = LS_SORT_BY_CHANNELS;
1513 continue;
1514 case 'i':
1515 sort = LS_SORT_BY_IMAGE_ID;
1516 continue;
1517 case 'y':
1518 sort = LS_SORT_BY_LYRICS_ID;
1519 continue;
1520 case 'b':
1521 sort = LS_SORT_BY_BITRATE;
1522 continue;
1523 case 'd':
1524 sort = LS_SORT_BY_DURATION;
1525 continue;
1526 case 'a':
1527 sort = LS_SORT_BY_AUDIO_FORMAT;
1528 continue;
1529 default:
1530 return -E_AFT_SYNTAX;
1531 }
1532 }
1533 return -E_AFT_SYNTAX;
1534 }
1535 opts.flags = flags;
1536 opts.sorting = sort;
1537 opts.mode = mode;
1538 opts.num_patterns = cc->argc - i;
1539 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1540 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1541 return ret;
1542 }
1543
1544 /**
1545 * Call the given function for each file in the audio file table.
1546 *
1547 * \param private_data An arbitrary data pointer, passed to \a func.
1548 * \param func The custom function to be called.
1549 *
1550 * \return Standard.
1551 */
1552 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1553 {
1554 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1555 func));
1556 }
1557
1558 static struct osl_row *find_hash_sister(unsigned char *hash)
1559 {
1560 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1561 struct osl_row *row;
1562
1563 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1564 return row;
1565 }
1566
1567 /** The format of the data stored by save_audio_file_data(). */
1568 enum com_add_buffer_offsets {
1569 /** afhi (if present) starts here. */
1570 CAB_AFHI_OFFSET_POS = 0,
1571 /** Start of the chunk table (if present). */
1572 CAB_CHUNKS_OFFSET_POS = 2,
1573 /** Audio format id. */
1574 CAB_AUDIO_FORMAT_OFFSET = 4,
1575 /** Flags given to the add command. */
1576 CAB_FLAGS_OFFSET = 5,
1577 /** The hash of the audio file being added. */
1578 CAB_HASH_OFFSET = 9,
1579 /** Start of the path of the audio file. */
1580 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1581 };
1582
1583 /*
1584 * Store the given data to a single buffer. Doesn't need the audio file selector
1585 * info struct as the server knows it as well.
1586 *
1587 * It's OK to call this with afhi == NULL. In this case, the audio format
1588 * handler info won't be stored in the buffer.
1589 */
1590 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1591 struct afh_info *afhi, uint32_t flags,
1592 uint8_t audio_format_num, struct osl_object *obj)
1593 {
1594 size_t path_len = strlen(path) + 1;
1595 size_t afhi_size = sizeof_afhi_buf(afhi);
1596 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1597 + sizeof_chunk_table(afhi);
1598 char *buf = para_malloc(size);
1599 uint16_t pos;
1600
1601 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1602 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1603
1604 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1605 strcpy(buf + CAB_PATH_OFFSET, path);
1606
1607 pos = CAB_PATH_OFFSET + path_len;
1608 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1609 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1610 pos + afhi_size - 1);
1611 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1612 save_afhi(afhi, buf + pos);
1613
1614 pos += afhi_size;
1615 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1616 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1617 if (afhi)
1618 save_chunk_table(afhi, buf + pos);
1619 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1620 obj->data = buf;
1621 obj->size = size;
1622 }
1623
1624 /*
1625
1626 Overview of the add command.
1627
1628 Input: What was passed to the callback by the command handler.
1629 ~~~~~~
1630 HS: Hash sister. Whether an audio file with identical hash
1631 already exists in the osl database.
1632
1633 PB: Path brother. Whether a file with the given path exists
1634 in the table.
1635
1636 F: Force flag given. Whether add was called with -f.
1637
1638 output: Action performed by the callback.
1639 ~~~~~~~
1640 AFHI: Whether afhi and chunk table are computed and sent.
1641 ACTION: Table modifications to be done by the callback.
1642
1643 +----+----+---+------+---------------------------------------------------+
1644 | HS | PB | F | AFHI | ACTION
1645 +----+----+---+------+---------------------------------------------------+
1646 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1647 | | update path, keep afsi
1648 +----+----+---+------+---------------------------------------------------+
1649 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1650 | | otherwise: remove PB, HS: update path, keep afhi,
1651 | | afsi.
1652 +----+----+---+------+---------------------------------------------------+
1653 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1654 | | HS, keep afsi
1655 +----+----+---+------+---------------------------------------------------+
1656 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1657 +----+----+---+------+---------------------------------------------------+
1658 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1659 | | (force has no effect)
1660 +----+----+---+------+---------------------------------------------------+
1661 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1662 +----+----+---+------+---------------------------------------------------+
1663 | N | N | Y | Y | (new file) create new entry (force has no effect)
1664 +----+----+---+------+---------------------------------------------------+
1665 | N | N | N | Y | (new file) create new entry
1666 +----+----+---+------+---------------------------------------------------+
1667
1668 Notes:
1669
1670 afhi <=> force or no HS
1671 F => AFHI
1672
1673 */
1674
1675 /** Flags passed to the add command. */
1676 enum com_add_flags {
1677 /** Skip paths that exist already. */
1678 ADD_FLAG_LAZY = 1,
1679 /** Force adding. */
1680 ADD_FLAG_FORCE = 2,
1681 /** Print what is being done. */
1682 ADD_FLAG_VERBOSE = 4,
1683 /** Try to add files with unknown suffixes. */
1684 ADD_FLAG_ALL = 8,
1685 };
1686
1687 static void com_add_callback(int fd, const struct osl_object *query)
1688 {
1689 char *buf = query->data, *path;
1690 struct osl_row *pb, *aft_row;
1691 struct osl_row *hs;
1692 struct osl_object objs[NUM_AFT_COLUMNS];
1693 unsigned char *hash;
1694 char asc[2 * HASH_SIZE + 1];
1695 int ret;
1696 char afsi_buf[AFSI_SIZE];
1697 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1698 struct afs_info default_afsi = {.last_played = 0};
1699 struct para_buffer msg = {
1700 .max_size = shm_get_shmmax(),
1701 .max_size_handler = afs_max_size_handler,
1702 .private_data = &(struct afs_max_size_handler_data) {
1703 .fd = fd,
1704 .band = SBD_OUTPUT
1705 }
1706 };
1707 uint16_t afhi_offset, chunks_offset;
1708
1709 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1710 hash_to_asc(hash, asc);
1711 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1712 objs[AFTCOL_HASH].size = HASH_SIZE;
1713
1714 path = buf + CAB_PATH_OFFSET;
1715 objs[AFTCOL_PATH].data = path;
1716 objs[AFTCOL_PATH].size = strlen(path) + 1;
1717
1718 PARA_INFO_LOG("request to add %s\n", path);
1719 hs = find_hash_sister(hash);
1720 ret = aft_get_row_of_path(path, &pb);
1721 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1722 goto out;
1723 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1724 if (flags & ADD_FLAG_VERBOSE)
1725 ret = para_printf(&msg, "ignoring duplicate\n");
1726 else
1727 ret = 1;
1728 goto out;
1729 }
1730 if (hs && hs != pb) {
1731 struct osl_object obj;
1732 if (pb) { /* hs trumps pb, remove pb */
1733 if (flags & ADD_FLAG_VERBOSE) {
1734 ret = para_printf(&msg, "removing %s\n", path);
1735 if (ret < 0)
1736 goto out;
1737 }
1738 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1739 ret = osl(osl_del_row(audio_file_table, pb));
1740 if (ret < 0)
1741 goto out;
1742 pb = NULL;
1743 }
1744 /* file rename, update hs' path */
1745 if (flags & ADD_FLAG_VERBOSE) {
1746 ret = osl(osl_get_object(audio_file_table, hs,
1747 AFTCOL_PATH, &obj));
1748 if (ret < 0)
1749 goto out;
1750 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1751 if (ret < 0)
1752 goto out;
1753 }
1754 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1755 &objs[AFTCOL_PATH]));
1756 if (ret < 0)
1757 goto out;
1758 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1759 if (!(flags & ADD_FLAG_FORCE))
1760 goto out;
1761 }
1762 /* no hs or force mode, child must have sent afhi */
1763 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1764 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1765
1766 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1767 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1768 ret = -E_NO_AFHI;
1769 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1770 goto out;
1771 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1772 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1773 if (pb && !hs) { /* update pb's hash */
1774 char old_asc[2 * HASH_SIZE + 1];
1775 unsigned char *old_hash;
1776 ret = get_hash_of_row(pb, &old_hash);
1777 if (ret < 0)
1778 goto out;
1779 hash_to_asc(old_hash, old_asc);
1780 if (flags & ADD_FLAG_VERBOSE) {
1781 ret = para_printf(&msg, "file change: %s -> %s\n",
1782 old_asc, asc);
1783 if (ret < 0)
1784 goto out;
1785 }
1786 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1787 &objs[AFTCOL_HASH]);
1788 if (ret < 0)
1789 goto out;
1790 }
1791 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1792 struct osl_row *row = pb? pb : hs;
1793 /* update afhi and chunk_table */
1794 if (flags & ADD_FLAG_VERBOSE) {
1795 ret = para_printf(&msg, "updating afhi and chunk table\n");
1796 if (ret < 0)
1797 goto out;
1798 }
1799 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1800 &objs[AFTCOL_AFHI]));
1801 if (ret < 0)
1802 goto out;
1803 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1804 &objs[AFTCOL_CHUNKS]));
1805 if (ret < 0)
1806 goto out;
1807 afs_event(AFHI_CHANGE, &msg, row);
1808 goto out;
1809 }
1810 /* new entry, use default afsi */
1811 if (flags & ADD_FLAG_VERBOSE) {
1812 ret = para_printf(&msg, "new file\n");
1813 if (ret < 0)
1814 goto out;
1815 }
1816 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1817 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1818
1819 objs[AFTCOL_AFSI].data = &afsi_buf;
1820 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1821 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1822 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1823 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1824 out:
1825 if (ret < 0)
1826 para_printf(&msg, "%s\n", para_strerror(-ret));
1827 if (msg.offset)
1828 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1829 free(msg.buf);
1830 }
1831
1832 /** Used by com_add(). */
1833 struct private_add_data {
1834 /** The pointer passed to the original command handler. */
1835 struct command_context *cc;
1836 /** The given add flags. */
1837 uint32_t flags;
1838 };
1839
1840 static void path_brother_callback(int fd, const struct osl_object *query)
1841 {
1842 char *path = query->data;
1843 struct osl_row *path_brother;
1844 int ret = aft_get_row_of_path(path, &path_brother);
1845 if (ret < 0)
1846 return;
1847 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1848 sizeof(path_brother));
1849 }
1850
1851 static void hash_sister_callback(int fd, const struct osl_object *query)
1852 {
1853 unsigned char *hash = query->data;
1854 struct osl_row *hash_sister;
1855
1856 hash_sister = find_hash_sister(hash);
1857 if (!hash_sister)
1858 return;
1859 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1860 sizeof(hash_sister));
1861 }
1862
1863 static int get_row_pointer_from_result(struct osl_object *result,
1864 __a_unused uint8_t band, void *private)
1865 {
1866 struct osl_row **row = private;
1867 *row = *(struct osl_row **)(result->data);
1868 return 1;
1869 }
1870
1871 static int add_one_audio_file(const char *path, void *private_data)
1872 {
1873 int ret, send_ret = 1, fd;
1874 uint8_t format_num = -1;
1875 struct private_add_data *pad = private_data;
1876 struct afh_info afhi, *afhi_ptr = NULL;
1877 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1878 struct osl_object map, obj = {.data = NULL}, query;
1879 unsigned char hash[HASH_SIZE];
1880
1881 ret = guess_audio_format(path);
1882 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1883 goto out_free;
1884 query.data = (char *)path;
1885 query.size = strlen(path) + 1;
1886 ret = send_callback_request(path_brother_callback, &query,
1887 get_row_pointer_from_result, &pb);
1888 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1889 goto out_free;
1890 ret = 1;
1891 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1892 if (pad->flags & ADD_FLAG_VERBOSE)
1893 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1894 "lazy-ignore: %s\n", path);
1895 goto out_free;
1896 }
1897 /* We still want to add this file. Compute its hash. */
1898 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1899 if (ret < 0)
1900 goto out_free;
1901 hash_function(map.data, map.size, hash);
1902
1903 /* Check whether the database contains a file with the same hash. */
1904 query.data = hash;
1905 query.size = HASH_SIZE;
1906 ret = send_callback_request(hash_sister_callback, &query,
1907 get_row_pointer_from_result, &hs);
1908 if (ret < 0)
1909 goto out_unmap;
1910 /* Return success if we already know this file. */
1911 ret = 1;
1912 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1913 if (pad->flags & ADD_FLAG_VERBOSE)
1914 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1915 "%s exists, not forcing update\n", path);
1916 goto out_unmap;
1917 }
1918 /*
1919 * We won't recalculate the audio format info and the chunk table if
1920 * there is a hash sister and FORCE was not given.
1921 */
1922 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1923 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1924 if (ret < 0)
1925 goto out_unmap;
1926 format_num = ret;
1927 afhi_ptr = &afhi;
1928 }
1929 munmap(map.data, map.size);
1930 close(fd);
1931 if (pad->flags & ADD_FLAG_VERBOSE) {
1932 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1933 "adding %s\n", path);
1934 if (send_ret < 0)
1935 goto out_free;
1936 }
1937 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1938 /* Ask afs to consider this entry for adding. */
1939 ret = send_callback_request(com_add_callback, &obj,
1940 afs_cb_result_handler, pad->cc);
1941 goto out_free;
1942
1943 out_unmap:
1944 close(fd);
1945 munmap(map.data, map.size);
1946 out_free:
1947 if (ret < 0 && send_ret >= 0)
1948 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1949 "failed to add %s (%s)\n", path, para_strerror(-ret));
1950 free(obj.data);
1951 clear_afhi(afhi_ptr);
1952 /* Stop adding files only on send errors. */
1953 return send_ret;
1954 }
1955
1956 int com_add(struct command_context *cc)
1957 {
1958 int i, ret;
1959 struct private_add_data pad = {.cc = cc, .flags = 0};
1960 struct stat statbuf;
1961
1962 for (i = 1; i < cc->argc; i++) {
1963 const char *arg = cc->argv[i];
1964 if (arg[0] != '-')
1965 break;
1966 if (!strcmp(arg, "--")) {
1967 i++;
1968 break;
1969 }
1970 if (!strcmp(arg, "-a")) {
1971 pad.flags |= ADD_FLAG_ALL;
1972 continue;
1973 }
1974 if (!strcmp(arg, "-l")) {
1975 pad.flags |= ADD_FLAG_LAZY;
1976 continue;
1977 }
1978 if (!strcmp(arg, "-f")) {
1979 pad.flags |= ADD_FLAG_FORCE;
1980 continue;
1981 }
1982 if (!strcmp(arg, "-v")) {
1983 pad.flags |= ADD_FLAG_VERBOSE;
1984 continue;
1985 }
1986 }
1987 if (cc->argc <= i)
1988 return -E_AFT_SYNTAX;
1989 for (; i < cc->argc; i++) {
1990 char *path;
1991 ret = verify_path(cc->argv[i], &path);
1992 if (ret < 0) {
1993 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1994 cc->argv[i], para_strerror(-ret));
1995 if (ret < 0)
1996 return ret;
1997 continue;
1998 }
1999 ret = stat(path, &statbuf);
2000 if (ret < 0) {
2001 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG,
2002 "failed to stat %s (%s)\n", path,
2003 strerror(errno));
2004 free(path);
2005 if (ret < 0)
2006 return ret;
2007 continue;
2008 }
2009 if (S_ISDIR(statbuf.st_mode))
2010 ret = for_each_file_in_dir(path, add_one_audio_file,
2011 &pad);
2012 else
2013 ret = add_one_audio_file(path, &pad);
2014 if (ret < 0) {
2015 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2016 para_strerror(-ret));
2017 free(path);
2018 return ret;
2019 }
2020 free(path);
2021 }
2022 return 1;
2023 }
2024
2025 /**
2026 * Flags used by the touch command.
2027 *
2028 * \sa com_touch().
2029 */
2030 enum touch_flags {
2031 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2032 TOUCH_FLAG_FNM_PATHNAME = 1,
2033 /** Activates verbose mode. */
2034 TOUCH_FLAG_VERBOSE = 2
2035 };
2036
2037 /** Options used by com_touch(). */
2038 struct com_touch_options {
2039 /** New num_played value. */
2040 int32_t num_played;
2041 /** New last played count. */
2042 int64_t last_played;
2043 /** New lyrics id. */
2044 int32_t lyrics_id;
2045 /** New image id. */
2046 int32_t image_id;
2047 /** New amplification value. */
2048 int32_t amp;
2049 /** Command line flags (see \ref touch_flags). */
2050 unsigned flags;
2051 };
2052
2053 /** Data passed to the action handler of com_touch(). */
2054 struct touch_action_data {
2055 /** Command line options (see \ref com_touch_options). */
2056 struct com_touch_options *cto;
2057 /** Message buffer. */
2058 struct para_buffer pb;
2059 };
2060
2061 static int touch_audio_file(__a_unused struct osl_table *table,
2062 struct osl_row *row, const char *name, void *data)
2063 {
2064 struct touch_action_data *tad = data;
2065 struct osl_object obj;
2066 struct afs_info old_afsi, new_afsi;
2067 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2068 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2069 struct afsi_change_event_data aced;
2070
2071 ret = get_afsi_object_of_row(row, &obj);
2072 if (ret < 0)
2073 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2074 ret = load_afsi(&old_afsi, &obj);
2075 if (ret < 0)
2076 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2077 new_afsi = old_afsi;
2078 if (no_options) {
2079 new_afsi.num_played++;
2080 new_afsi.last_played = time(NULL);
2081 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2082 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2083 "last_played = now()\n", name,
2084 new_afsi.num_played);
2085 if (ret < 0)
2086 return ret;
2087 }
2088 } else {
2089 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2090 ret = para_printf(&tad->pb, "touching %s\n", name);
2091 if (ret < 0)
2092 return ret;
2093 }
2094 if (tad->cto->lyrics_id >= 0)
2095 new_afsi.lyrics_id = tad->cto->lyrics_id;
2096 if (tad->cto->image_id >= 0)
2097 new_afsi.image_id = tad->cto->image_id;
2098 if (tad->cto->num_played >= 0)
2099 new_afsi.num_played = tad->cto->num_played;
2100 if (tad->cto->last_played >= 0)
2101 new_afsi.last_played = tad->cto->last_played;
2102 if (tad->cto->amp >= 0)
2103 new_afsi.amp = tad->cto->amp;
2104 }
2105 save_afsi(&new_afsi, &obj); /* in-place update */
2106 aced.aft_row = row;
2107 aced.old_afsi = &old_afsi;
2108 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2109 return 1;
2110 }
2111
2112 static void com_touch_callback(int fd, const struct osl_object *query)
2113 {
2114 struct touch_action_data tad = {.cto = query->data,
2115 .pb = {
2116 .max_size = shm_get_shmmax(),
2117 .private_data = &fd,
2118 .max_size_handler = afs_max_size_handler
2119 }
2120 };
2121 int ret, ret2 = 0;
2122 struct pattern_match_data pmd = {
2123 .table = audio_file_table,
2124 .loop_col_num = AFTCOL_HASH,
2125 .match_col_num = AFTCOL_PATH,
2126 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2127 .size = query->size - sizeof(*tad.cto)},
2128 .data = &tad,
2129 .action = touch_audio_file
2130 };
2131 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2132 pmd.fnmatch_flags |= FNM_PATHNAME;
2133 ret = for_each_matching_row(&pmd);
2134 if (ret < 0)
2135 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2136 else if (pmd.num_matches == 0)
2137 ret2 = para_printf(&tad.pb, "no matches\n");
2138 if (ret2 >= 0 && tad.pb.offset)
2139 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2140 free(tad.pb.buf);
2141 }
2142
2143 int com_touch(struct command_context *cc)
2144 {
2145 struct com_touch_options cto = {
2146 .num_played = -1,
2147 .last_played = -1,
2148 .lyrics_id = -1,
2149 .image_id = -1,
2150 .amp = -1,
2151 };
2152 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2153 int i, ret;
2154
2155
2156 for (i = 1; i < cc->argc; i++) {
2157 const char *arg = cc->argv[i];
2158 if (arg[0] != '-')
2159 break;
2160 if (!strcmp(arg, "--")) {
2161 i++;
2162 break;
2163 }
2164 if (!strncmp(arg, "-n=", 3)) {
2165 ret = para_atoi32(arg + 3, &cto.num_played);
2166 if (ret < 0)
2167 return ret;
2168 continue;
2169 }
2170 if (!strncmp(arg, "-l=", 3)) {
2171 ret = para_atoi64(arg + 3, &cto.last_played);
2172 if (ret < 0)
2173 return ret;
2174 continue;
2175 }
2176 if (!strncmp(arg, "-y=", 3)) {
2177 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2178 if (ret < 0)
2179 return ret;
2180 continue;
2181 }
2182 if (!strncmp(arg, "-i=", 3)) {
2183 ret = para_atoi32(arg + 3, &cto.image_id);
2184 if (ret < 0)
2185 return ret;
2186 continue;
2187 }
2188 if (!strncmp(arg, "-a=", 3)) {
2189 int32_t val;
2190 ret = para_atoi32(arg + 3, &val);
2191 if (ret < 0)
2192 return ret;
2193 if (val < 0 || val > 255)
2194 return -ERRNO_TO_PARA_ERROR(EINVAL);
2195 cto.amp = val;
2196 continue;
2197 }
2198 if (!strcmp(arg, "-p")) {
2199 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2200 continue;
2201 }
2202 if (!strcmp(arg, "-v")) {
2203 cto.flags |= TOUCH_FLAG_VERBOSE;
2204 continue;
2205 }
2206 break; /* non-option starting with dash */
2207 }
2208 if (i >= cc->argc)
2209 return -E_AFT_SYNTAX;
2210 ret = send_option_arg_callback_request(&query, cc->argc - i,
2211 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2212 if (ret < 0)
2213 send_strerror(cc, -ret);
2214 return ret;
2215 }
2216
2217 /** Flags for com_rm(). */
2218 enum rm_flags {
2219 /** -v */
2220 RM_FLAG_VERBOSE = 1,
2221 /** -f */
2222 RM_FLAG_FORCE = 2,
2223 /** -p */
2224 RM_FLAG_FNM_PATHNAME = 4
2225 };
2226
2227 /** Data passed to the action handler of com_rm(). */
2228 struct com_rm_action_data {
2229 /** Command line flags ((see \ref rm_flags). */
2230 uint32_t flags;
2231 /** Message buffer. */
2232 struct para_buffer pb;
2233 };
2234
2235 static int remove_audio_file(__a_unused struct osl_table *table,
2236 struct osl_row *row, const char *name, void *data)
2237 {
2238 struct com_rm_action_data *crd = data;
2239 int ret;
2240
2241 if (crd->flags & RM_FLAG_VERBOSE) {
2242 ret = para_printf(&crd->pb, "removing %s\n", name);
2243 if (ret < 0)
2244 return ret;
2245 }
2246 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2247 ret = osl(osl_del_row(audio_file_table, row));
2248 if (ret < 0)
2249 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2250 return ret;
2251 }
2252
2253 static void com_rm_callback(int fd, const struct osl_object *query)
2254 {
2255 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2256 .pb = {
2257 .max_size = shm_get_shmmax(),
2258 .private_data = &fd,
2259 .max_size_handler = afs_max_size_handler
2260 }
2261 };
2262 int ret;
2263 struct pattern_match_data pmd = {
2264 .table = audio_file_table,
2265 .loop_col_num = AFTCOL_HASH,
2266 .match_col_num = AFTCOL_PATH,
2267 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2268 .size = query->size - sizeof(uint32_t)},
2269 .data = &crd,
2270 .action = remove_audio_file
2271 };
2272 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2273 pmd.fnmatch_flags |= FNM_PATHNAME;
2274 ret = for_each_matching_row(&pmd);
2275 if (ret < 0) {
2276 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2277 return;
2278 }
2279 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2280 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2281 else if (crd.flags & RM_FLAG_VERBOSE) {
2282 ret = para_printf(&crd.pb, "removed %u files\n",
2283 pmd.num_matches);
2284 }
2285 if (ret >= 0 && crd.pb.offset)
2286 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2287 free(crd.pb.buf);
2288 }
2289
2290 /* TODO options: -r (recursive) */
2291 int com_rm(struct command_context *cc)
2292 {
2293 uint32_t flags = 0;
2294 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2295 int i, ret;
2296
2297 for (i = 1; i < cc->argc; i++) {
2298 const char *arg = cc->argv[i];
2299 if (arg[0] != '-')
2300 break;
2301 if (!strcmp(arg, "--")) {
2302 i++;
2303 break;
2304 }
2305 if (!strcmp(arg, "-f")) {
2306 flags |= RM_FLAG_FORCE;
2307 continue;
2308 }
2309 if (!strcmp(arg, "-p")) {
2310 flags |= RM_FLAG_FNM_PATHNAME;
2311 continue;
2312 }
2313 if (!strcmp(arg, "-v")) {
2314 flags |= RM_FLAG_VERBOSE;
2315 continue;
2316 }
2317 break;
2318 }
2319 if (i >= cc->argc)
2320 return -E_AFT_SYNTAX;
2321 ret = send_option_arg_callback_request(&query, cc->argc - i,
2322 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2323 if (ret < 0)
2324 send_strerror(cc, -ret);
2325 return ret;
2326 }
2327
2328 /**
2329 * Flags used by the cpsi command.
2330 *
2331 * \sa com_cpsi().
2332 */
2333 enum cpsi_flags {
2334 /** Whether the lyrics id should be copied. */
2335 CPSI_FLAG_COPY_LYRICS_ID = 1,
2336 /** Whether the image id should be copied. */
2337 CPSI_FLAG_COPY_IMAGE_ID = 2,
2338 /** Whether the lastplayed time should be copied. */
2339 CPSI_FLAG_COPY_LASTPLAYED = 4,
2340 /** Whether the numplayed count should be copied. */
2341 CPSI_FLAG_COPY_NUMPLAYED = 8,
2342 /** Whether the attributes should be copied. */
2343 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2344 /** Activates verbose mode. */
2345 CPSI_FLAG_VERBOSE = 32,
2346 };
2347
2348 /** Data passed to the action handler of com_cpsi(). */
2349 struct cpsi_action_data {
2350 /** command line flags (see \ref cpsi_flags). */
2351 unsigned flags;
2352 /** Message buffer. */
2353 struct para_buffer pb;
2354 /** Values are copied from here. */
2355 struct afs_info source_afsi;
2356 };
2357
2358 static int copy_selector_info(__a_unused struct osl_table *table,
2359 struct osl_row *row, const char *name, void *data)
2360 {
2361 struct cpsi_action_data *cad = data;
2362 struct osl_object target_afsi_obj;
2363 int ret;
2364 struct afs_info old_afsi, target_afsi;
2365 struct afsi_change_event_data aced;
2366
2367 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2368 if (ret < 0)
2369 return ret;
2370 load_afsi(&target_afsi, &target_afsi_obj);
2371 old_afsi = target_afsi;
2372 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2373 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2374 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2375 target_afsi.image_id = cad->source_afsi.image_id;
2376 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2377 target_afsi.last_played = cad->source_afsi.last_played;
2378 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2379 target_afsi.num_played = cad->source_afsi.num_played;
2380 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2381 target_afsi.attributes = cad->source_afsi.attributes;
2382 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2383 if (cad->flags & CPSI_FLAG_VERBOSE) {
2384 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2385 if (ret < 0)
2386 return ret;
2387 }
2388 aced.aft_row = row;
2389 aced.old_afsi = &old_afsi;
2390 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2391 return 1;
2392 }
2393
2394 static void com_cpsi_callback(int fd, const struct osl_object *query)
2395 {
2396 struct cpsi_action_data cad = {
2397 .flags = *(unsigned *)query->data,
2398 .pb = {
2399 .max_size = shm_get_shmmax(),
2400 .private_data = &fd,
2401 .max_size_handler = afs_max_size_handler
2402 }
2403 };
2404 int ret;
2405 char *source_path = (char *)query->data + sizeof(cad.flags);
2406 struct pattern_match_data pmd = {
2407 .table = audio_file_table,
2408 .loop_col_num = AFTCOL_HASH,
2409 .match_col_num = AFTCOL_PATH,
2410 .patterns = {.data = source_path + strlen(source_path) + 1,
2411 .size = query->size - sizeof(cad.flags)
2412 - strlen(source_path) - 1},
2413 .data = &cad,
2414 .action = copy_selector_info
2415 };
2416
2417 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2418 if (ret < 0)
2419 goto out;
2420 ret = for_each_matching_row(&pmd);
2421 out:
2422 if (ret < 0)
2423 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2424 else if (pmd.num_matches > 0) {
2425 if (cad.flags & CPSI_FLAG_VERBOSE)
2426 para_printf(&cad.pb, "copied requested afsi from %s "
2427 "to %u files\n", source_path, pmd.num_matches);
2428 } else
2429 para_printf(&cad.pb, "no matches - nothing copied\n");
2430 if (cad.pb.offset)
2431 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2432 free(cad.pb.buf);
2433 }
2434
2435 int com_cpsi(struct command_context *cc)
2436 {
2437 unsigned flags = 0;
2438 int i, ret;
2439 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2440
2441 for (i = 1; i < cc->argc; i++) {
2442 const char *arg = cc->argv[i];
2443 if (arg[0] != '-')
2444 break;
2445 if (!strcmp(arg, "--")) {
2446 i++;
2447 break;
2448 }
2449 if (!strcmp(arg, "-y")) {
2450 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2451 continue;
2452 }
2453 if (!strcmp(arg, "-i")) {
2454 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2455 continue;
2456 }
2457 if (!strcmp(arg, "-l")) {
2458 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2459 continue;
2460 }
2461 if (!strcmp(arg, "-n")) {
2462 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2463 continue;
2464 }
2465 if (!strcmp(arg, "-a")) {
2466 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2467 continue;
2468 }
2469 if (!strcmp(arg, "-v")) {
2470 flags |= CPSI_FLAG_VERBOSE;
2471 continue;
2472 }
2473 break;
2474 }
2475 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2476 return -E_AFT_SYNTAX;
2477 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2478 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2479 ret = send_option_arg_callback_request(&options, cc->argc - i,
2480 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2481 if (ret < 0)
2482 send_strerror(cc, -ret);
2483 return ret;
2484 }
2485
2486 struct change_atts_data {
2487 uint64_t add_mask, del_mask;
2488 struct para_buffer pb;
2489 };
2490
2491 static int change_atts(__a_unused struct osl_table *table,
2492 struct osl_row *row, __a_unused const char *name, void *data)
2493 {
2494 int ret;
2495 struct osl_object obj;
2496 struct afs_info old_afsi, new_afsi;
2497 struct afsi_change_event_data aced = {
2498 .aft_row = row,
2499 .old_afsi = &old_afsi
2500 };
2501 struct change_atts_data *cad = data;
2502
2503 ret = get_afsi_object_of_row(row, &obj);
2504 if (ret < 0)
2505 return ret;
2506 ret = load_afsi(&old_afsi, &obj);
2507 if (ret < 0)
2508 return ret;
2509 new_afsi = old_afsi;
2510 new_afsi.attributes |= cad->add_mask;
2511 new_afsi.attributes &= ~cad->del_mask;
2512 save_afsi(&new_afsi, &obj); /* in-place update */
2513 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2514 return 1;
2515 }
2516
2517 static void com_setatt_callback(int fd, const struct osl_object *query)
2518 {
2519 char *p;
2520 int ret;
2521 size_t len;
2522 struct change_atts_data cad = {
2523 .pb = {
2524 .max_size = shm_get_shmmax(),
2525 .max_size_handler = afs_max_size_handler,
2526 .private_data = &(struct afs_max_size_handler_data) {
2527 .fd = fd,
2528 .band = SBD_OUTPUT
2529 }
2530 }
2531 };
2532 struct pattern_match_data pmd = {
2533 .table = audio_file_table,
2534 .loop_col_num = AFTCOL_HASH,
2535 .match_col_num = AFTCOL_PATH,
2536 .pm_flags = PM_SKIP_EMPTY_NAME,
2537 .data = &cad,
2538 .action = change_atts
2539 };
2540
2541 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2542 char c;
2543 unsigned char bitnum;
2544
2545 len = strlen(p);
2546 ret = -E_ATTR_SYNTAX;
2547 if (len == 0)
2548 goto out;
2549 c = p[len - 1];
2550 if (c != '+' && c != '-')
2551 break;
2552 p[len - 1] = '\0';
2553 ret = get_attribute_bitnum_by_name(p, &bitnum);
2554 if (ret < 0)
2555 goto out;
2556 if (c == '+')
2557 cad.add_mask |= (1UL << bitnum);
2558 else
2559 cad.del_mask |= (1UL << bitnum);
2560 }
2561 ret = -E_ATTR_SYNTAX;
2562 if (!cad.add_mask && !cad.del_mask)
2563 goto out;
2564 pmd.patterns.data = p;
2565 assert(p < (char *)query->data + query->size);
2566 pmd.patterns.size = (char *)query->data + query->size - p;
2567 ret = for_each_matching_row(&pmd);
2568 if (ret < 0)
2569 goto out;
2570 if (pmd.num_matches == 0)
2571 para_printf(&cad.pb, "no matches\n");
2572 out:
2573 if (ret < 0)
2574 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2575 if (cad.pb.offset)
2576 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2577 free(cad.pb.buf);
2578 }
2579
2580 int com_setatt(struct command_context *cc)
2581 {
2582 if (cc->argc < 3)
2583 return -E_ATTR_SYNTAX;
2584 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2585 com_setatt_callback, afs_cb_result_handler, cc);
2586 }
2587
2588 static void afs_stat_callback(int fd, const struct osl_object *query)
2589 {
2590 int *parser_friendly = query->data;
2591 char *buf = *parser_friendly?
2592 parser_friendly_status_items : status_items;
2593
2594 if (!buf)
2595 return;
2596 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2597 }
2598
2599 /**
2600 * Get the current afs status items from the afs process and send it.
2601 *
2602 * \param cc The command context, used e.g. for data encryption.
2603 * \param parser_friendly Whether parser-friendly output format should be used.
2604 *
2605 * As the contents of the afs status items change in time and the command
2606 * handler only has a COW version created at fork time, it can not send
2607 * up-to-date afs status items directly. Therefore the usual callback mechanism
2608 * is used to pass the status items from the afs process to the command handler
2609 * via a shared memory area and a pipe.
2610 *
2611 * \return The return value of the underlying call to \ref send_callback_request().
2612 */
2613 int send_afs_status(struct command_context *cc, int parser_friendly)
2614 {
2615 struct osl_object query = {.data = &parser_friendly,
2616 .size = sizeof(parser_friendly)};
2617
2618 return send_callback_request(afs_stat_callback, &query,
2619 afs_cb_result_handler, cc);
2620 }
2621
2622 /* TODO: optionally fix problems by removing offending rows */
2623 static int check_audio_file(struct osl_row *row, void *data)
2624 {
2625 char *path;
2626 struct para_buffer *pb = data;
2627 struct stat statbuf;
2628 int ret = get_audio_file_path_of_row(row, &path);
2629 struct afs_info afsi;
2630 char *blob_name;
2631
2632 if (ret < 0)
2633 return para_printf(pb, "%s\n", para_strerror(-ret));
2634 if (stat(path, &statbuf) < 0) {
2635 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2636 if (ret < 0)
2637 return ret;
2638 } else {
2639 if (!S_ISREG(statbuf.st_mode)) {
2640 ret = para_printf(pb, "%s: not a regular file\n", path);
2641 if (ret < 0)
2642 return ret;
2643 }
2644 }
2645 ret = get_afsi_of_row(row, &afsi);
2646 if (ret < 0)
2647 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2648 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2649 if (ret < 0) {
2650 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2651 para_strerror(-ret));
2652 if (ret < 0)
2653 return ret;
2654 }
2655 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2656 if (ret < 0)
2657 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2658 para_strerror(-ret));
2659 return ret;
2660 }
2661
2662 /**
2663 * Check the audio file table for inconsistencies.
2664 *
2665 * \param fd The afs socket.
2666 * \param query Unused.
2667 *
2668 * This function always succeeds.
2669 *
2670 * \sa com_check().
2671 */
2672 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2673 {
2674 struct para_buffer pb = {
2675 .max_size = shm_get_shmmax(),
2676 .private_data = &(struct afs_max_size_handler_data) {
2677 .fd = fd,
2678 .band = SBD_OUTPUT
2679 },
2680 .max_size_handler = afs_max_size_handler
2681 };
2682 int ret = para_printf(&pb, "checking audio file table...\n");
2683
2684 if (ret < 0)
2685 return;
2686 audio_file_loop(&pb, check_audio_file);
2687 if (pb.offset)
2688 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2689 free(pb.buf);
2690 }
2691
2692 /**
2693 * Close the audio file table.
2694 *
2695 * \param flags Usual flags that are passed to osl_close_table().
2696 *
2697 * \sa osl_close_table().
2698 */
2699 static void aft_close(void)
2700 {
2701 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2702 audio_file_table = NULL;
2703 }
2704
2705 /**
2706 * Open the audio file table.
2707 *
2708 * \param dir The database directory.
2709 *
2710 * \return Standard.
2711 *
2712 * \sa osl_open_table().
2713 */
2714 static int aft_open(const char *dir)
2715 {
2716 int ret;
2717
2718 audio_file_table_desc.dir = dir;
2719 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2720 if (ret >= 0) {
2721 unsigned num;
2722 osl_get_num_rows(audio_file_table, &num);
2723 PARA_INFO_LOG("audio file table contains %d files\n", num);
2724 return ret;
2725 }
2726 PARA_INFO_LOG("failed to open audio file table\n");
2727 audio_file_table = NULL;
2728 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2729 return 1;
2730 return ret;
2731 }
2732
2733 static int aft_create(const char *dir)
2734 {
2735 audio_file_table_desc.dir = dir;
2736 return osl(osl_create_table(&audio_file_table_desc));
2737 }
2738
2739 static int clear_attribute(struct osl_row *row, void *data)
2740 {
2741 struct rmatt_event_data *red = data;
2742 struct afs_info afsi;
2743 struct osl_object obj;
2744 int ret = get_afsi_object_of_row(row, &obj);
2745 uint64_t mask = ~(1ULL << red->bitnum);
2746
2747 if (ret < 0)
2748 return ret;
2749 ret = load_afsi(&afsi, &obj);
2750 if (ret < 0)
2751 return ret;
2752 afsi.attributes &= mask;
2753 save_afsi(&afsi, &obj);
2754 return 1;
2755 }
2756
2757 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2758 void *data)
2759 {
2760 int ret;
2761
2762 switch (event) {
2763 case ATTRIBUTE_REMOVE: {
2764 const struct rmatt_event_data *red = data;
2765 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2766 "entries in the audio file table\n", red->name,
2767 red->bitnum);
2768 if (ret < 0)
2769 return ret;
2770 return audio_file_loop(data, clear_attribute);
2771 } case AFSI_CHANGE: {
2772 struct afsi_change_event_data *aced = data;
2773 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2774 if (aced->aft_row != current_aft_row)
2775 return 0;
2776 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2777 if (ret < 0)
2778 return ret;
2779 status_item_ls_data.afsi.last_played = old_last_played;
2780 make_status_items();
2781 return 1;
2782 } case AFHI_CHANGE: {
2783 if (data != current_aft_row)
2784 return 0;
2785 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2786 if (ret < 0)
2787 return ret;
2788 make_status_items();
2789 return 1;
2790 } default:
2791 return 0;
2792 }
2793 }
2794
2795 /**
2796 * Initialize the audio file table.
2797 *
2798 * \param t Pointer to the structure to be initialized.
2799 */
2800 void aft_init(struct afs_table *t)
2801 {
2802 t->open = aft_open;
2803 t->close = aft_close;
2804 t->create = aft_create;
2805 t->event_handler = aft_event_handler;
2806 }