Merge branch 'refs/heads/t/logo-0.6'
[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 #include <lopsub.h>
15
16 #include "server_cmd.lsg.h"
17 #include "para.h"
18 #include "error.h"
19 #include "crypt.h"
20 #include "string.h"
21 #include "afh.h"
22 #include "afs.h"
23 #include "fd.h"
24 #include "ipc.h"
25 #include "portable_io.h"
26 #include "sideband.h"
27 #include "command.h"
28
29 static struct osl_table *audio_file_table;
30 static char *status_items;
31 static char *parser_friendly_status_items;
32
33 /** The different sorting methods of the ls command. */
34 enum ls_sorting_method {
35 /** -sp (default) */
36 LS_SORT_BY_PATH,
37 /** -ss */
38 LS_SORT_BY_SCORE,
39 /** -sl */
40 LS_SORT_BY_LAST_PLAYED,
41 /** -sn */
42 LS_SORT_BY_NUM_PLAYED,
43 /** -sf */
44 LS_SORT_BY_FREQUENCY,
45 /** -sc */
46 LS_SORT_BY_CHANNELS,
47 /** -si */
48 LS_SORT_BY_IMAGE_ID,
49 /** -sy */
50 LS_SORT_BY_LYRICS_ID,
51 /** -sb */
52 LS_SORT_BY_BITRATE,
53 /** -sd */
54 LS_SORT_BY_DURATION,
55 /** -sa */
56 LS_SORT_BY_AUDIO_FORMAT,
57 /** -sh */
58 LS_SORT_BY_HASH,
59 };
60
61 /** The different listing modes of the ls command. */
62 enum ls_listing_mode {
63 /** Default listing mode. */
64 LS_MODE_SHORT,
65 /** -l or -ll */
66 LS_MODE_LONG,
67 /** -lv */
68 LS_MODE_VERBOSE,
69 /** -lm */
70 LS_MODE_MBOX,
71 /** -lc */
72 LS_MODE_CHUNKS,
73 /** -lp */
74 LS_MODE_PARSER,
75 };
76
77 /* Data about one audio file. Needed for ls and stat output. */
78 struct ls_data {
79 /* Usual audio format handler information. */
80 struct afh_info afhi;
81 /* Audio file selector information. */
82 struct afs_info afsi;
83 /* The full path of the audio file. */
84 char *path;
85 /* The score value (if -a was given). */
86 long score;
87 /* The hash value of the audio file data. */
88 unsigned char *hash;
89 };
90
91 /**
92 * The size of the individual output fields of the ls command.
93 *
94 * These depend on the content being listed. For example, if each listed file
95 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
96 * is set to hh:mm:ss.
97 */
98 struct ls_widths {
99 /** size of the score field. */
100 unsigned short score_width;
101 /** size of the image id field. */
102 unsigned short image_id_width;
103 /** size of the lyrics id field. */
104 unsigned short lyrics_id_width;
105 /** size of the bitrate field. */
106 unsigned short bitrate_width;
107 /** size of the frequency field. */
108 unsigned short frequency_width;
109 /** size of the duration field. */
110 unsigned short duration_width;
111 /** size of the num played field. */
112 unsigned short num_played_width;
113 /** size of the amp field. */
114 unsigned short amp_width;
115 /** size of the audio format field. */
116 unsigned short audio_format_width;
117 };
118
119 /** Data passed from the ls command handler to its callback function. */
120 struct ls_options {
121 struct lls_parse_result *lpr;
122 /* Derived from lpr */
123 enum ls_sorting_method sorting;
124 /* Derived from lpr */
125 enum ls_listing_mode mode;
126 /** Used for long listing mode to align the output fields. */
127 struct ls_widths widths;
128 /** Size of the \a data array. */
129 uint32_t array_size;
130 /** Number of used entries in the data array. */
131 uint32_t num_matching_paths;
132 /** Array of matching entries. */
133 struct ls_data *data;
134 /** Used to sort the array. */
135 struct ls_data **data_ptr;
136 };
137
138 /**
139 * Describes the layout of the mmapped-afs info struct.
140 *
141 * \sa struct afs_info.
142 */
143 enum afsi_offsets {
144 /** Where .last_played is stored. */
145 AFSI_LAST_PLAYED_OFFSET = 0,
146 /** Storage position of the attributes bitmap. */
147 AFSI_ATTRIBUTES_OFFSET = 8,
148 /** Storage position of the .num_played field. */
149 AFSI_NUM_PLAYED_OFFSET = 16,
150 /** Storage position of the .image_id field. */
151 AFSI_IMAGE_ID_OFFSET = 20,
152 /** Storage position of the .lyrics_id field. */
153 AFSI_LYRICS_ID_OFFSET = 24,
154 /** Storage position of the .audio_format_id field. */
155 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
156 /** Storage position of the amplification field. */
157 AFSI_AMP_OFFSET = 29,
158 /** 2 bytes reserved space for future usage. */
159 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
160 /** On-disk storage space needed. */
161 AFSI_SIZE = 32
162 };
163
164 /*
165 * Convert a struct afs_info to an osl object.
166 *
167 * \param afsi Pointer to the audio file info to be converted.
168 * \param obj Result pointer.
169 *
170 * \sa load_afsi().
171 */
172 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
173 {
174 char *buf = obj->data;
175
176 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
177 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
178 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
179 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
180 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
181 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
182 afsi->audio_format_id);
183 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
184 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
185 }
186
187 /*
188 * Get the audio file selector info struct stored in an osl object.
189 *
190 * \param afsi Points to the audio_file info structure to be filled in.
191 * \param obj The osl object holding the data.
192 *
193 * \return Standard.
194 *
195 * \sa save_afsi().
196 */
197 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
198 {
199 char *buf = obj->data;
200 if (obj->size < AFSI_SIZE)
201 return -E_BAD_AFSI;
202 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
203 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
204 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
205 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
206 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
207 afsi->audio_format_id = read_u8(buf +
208 AFSI_AUDIO_FORMAT_ID_OFFSET);
209 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
210 return 1;
211 }
212
213 /** The columns of the audio file table. */
214 enum audio_file_table_columns {
215 /** The hash on the content of the audio file. */
216 AFTCOL_HASH,
217 /** The full path in the filesystem. */
218 AFTCOL_PATH,
219 /** The audio file selector info. */
220 AFTCOL_AFSI,
221 /** The audio format handler info. */
222 AFTCOL_AFHI,
223 /** The chunk table info and the chunk table of the audio file. */
224 AFTCOL_CHUNKS,
225 /** The number of columns of this table. */
226 NUM_AFT_COLUMNS
227 };
228
229 /* compare function for the hash column */
230 static int aft_hash_compare(const struct osl_object *obj1,
231 const struct osl_object *obj2)
232 {
233 return hash_compare((unsigned char *)obj1->data,
234 (unsigned char *)obj2->data);
235 }
236
237 static struct osl_column_description aft_cols[] = {
238 [AFTCOL_HASH] = {
239 .storage_type = OSL_MAPPED_STORAGE,
240 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
241 .name = "hash",
242 .compare_function = aft_hash_compare,
243 .data_size = HASH_SIZE
244 },
245 [AFTCOL_PATH] = {
246 .storage_type = OSL_MAPPED_STORAGE,
247 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
248 .name = "path",
249 .compare_function = string_compare,
250 },
251 [AFTCOL_AFSI] = {
252 .storage_type = OSL_MAPPED_STORAGE,
253 .storage_flags = OSL_FIXED_SIZE,
254 .name = "afs_info",
255 .data_size = AFSI_SIZE
256 },
257 [AFTCOL_AFHI] = {
258 .storage_type = OSL_MAPPED_STORAGE,
259 .name = "afh_info",
260 },
261 [AFTCOL_CHUNKS] = {
262 .storage_type = OSL_DISK_STORAGE,
263 .name = "chunks",
264 }
265 };
266
267 static struct osl_table_description audio_file_table_desc = {
268 .name = "audio_files",
269 .num_columns = NUM_AFT_COLUMNS,
270 .flags = OSL_LARGE_TABLE,
271 .column_descriptions = aft_cols
272 };
273
274 /*
275 * Produce a canonicalized absolute pathname.
276 *
277 * Returns one if the resolved path a directory, zero if it is a regular file,
278 * negative on errors.
279 */
280 static int verify_path(const char *orig_path, char **resolved_path)
281 {
282 int ret;
283 char *path = NULL;
284 struct stat statbuf;
285
286 if (*orig_path != '/') /* we only accept absolute paths */
287 goto fail;
288 path = realpath(orig_path, NULL);
289 if (!path)
290 goto fail;
291 if (stat(path, &statbuf) < 0)
292 goto fail;
293 if (S_ISREG(statbuf.st_mode))
294 ret = 0;
295 else if (S_ISDIR(statbuf.st_mode))
296 ret = 1;
297 else
298 goto fail;
299 *resolved_path = path;
300 return ret;
301 fail:
302 *resolved_path = NULL;
303 free(path);
304 return -E_BAD_PATH;
305 }
306
307 /** The on-disk layout of a afhi struct. */
308 enum afhi_offsets {
309 /** Where the number of seconds is stored. */
310 AFHI_SECONDS_TOTAL_OFFSET = 0,
311 /** Position of the bitrate. */
312 AFHI_BITRATE_OFFSET = 4,
313 /** Position of the frequency. */
314 AFHI_FREQUENCY_OFFSET = 8,
315 /** Was: Location of the audio file header. */
316 AFHI_UNUSED1_OFFSET = 12,
317 /* Length of the audio file header. Zero means: No header. */
318 AFHI_HEADER_LEN_OFFSET = 16,
319 /** The total number of chunks (4 bytes). */
320 CHUNKS_TOTAL_OFFSET = 20,
321 /** The length of the audio file header (4 bytes). */
322 HEADER_LEN_OFFSET = 24,
323 /** Size of the largest chunk in bytes. (4 bytes). */
324 AFHI_MAX_CHUNK_SIZE_OFFSET = 28,
325 /** The seconds part of the chunk time (4 bytes). */
326 CHUNK_TV_TV_SEC_OFFSET = 32,
327 /** The microseconds part of the chunk time (4 bytes). */
328 CHUNK_TV_TV_USEC_OFFSET = 36,
329 /** Number of channels is stored here. (1 byte) */
330 AFHI_CHANNELS_OFFSET = 40,
331 /** The tag info position. */
332 AFHI_INFO_STRING_OFFSET = 41,
333 /** Minimal on-disk size of a valid afhi struct. */
334 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
335 };
336
337 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
338 {
339 if (!afhi)
340 return 0;
341 return MIN_AFHI_SIZE
342 + strlen(afhi->techinfo)
343 + strlen(afhi->tags.artist)
344 + strlen(afhi->tags.title)
345 + strlen(afhi->tags.year)
346 + strlen(afhi->tags.album)
347 + strlen(afhi->tags.comment);
348 }
349
350 static void save_afhi(struct afh_info *afhi, char *buf)
351 {
352 char *p;
353
354 if (!afhi)
355 return;
356 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
357 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
358 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
359 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
360 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
361 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
362 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
363 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
364 write_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET, afhi->max_chunk_size);
365 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
366 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
367 p = buf + AFHI_INFO_STRING_OFFSET;
368 /* The sprintf's below are OK as our caller made sure that buf is large enough */
369 p += sprintf(p, "%s", afhi->techinfo) + 1;
370 p += sprintf(p, "%s", afhi->tags.artist) + 1;
371 p += sprintf(p, "%s", afhi->tags.title) + 1;
372 p += sprintf(p, "%s", afhi->tags.year) + 1;
373 p += sprintf(p, "%s", afhi->tags.album) + 1;
374 sprintf(p, "%s", afhi->tags.comment);
375 }
376
377 static void load_afhi(const char *buf, struct afh_info *afhi)
378 {
379 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
380 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
381 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
382 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
383 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
384 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
385 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
386 afhi->max_chunk_size = read_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET);
387 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
388 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
389 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
390 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
391 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
392 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
393 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
394 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
395 }
396
397 /* Only used for saving the chunk table, but not for loading. */
398 static unsigned sizeof_chunk_table(struct afh_info *afhi)
399 {
400 if (!afhi || !afhi->chunk_table)
401 return 0;
402 return 4 * (afhi->chunks_total + 1);
403 }
404
405 static void save_chunk_table(struct afh_info *afhi, char *buf)
406 {
407 uint32_t n;
408
409 if (!afhi->chunk_table)
410 return;
411 for (n = 0; n <= afhi->chunks_total; n++)
412 write_u32(buf + 4 * n, afhi->chunk_table[n]);
413 }
414
415 static void load_chunk_table(struct afh_info *afhi, const struct osl_object *ct)
416 {
417 int i;
418 size_t sz;
419
420 if (!ct->data || ct->size < 4) {
421 afhi->chunk_table = NULL;
422 return;
423 }
424 sz = PARA_MIN(((size_t)afhi->chunks_total + 1) * 4, ct->size) + 1;
425 afhi->chunk_table = para_malloc(sz);
426 for (i = 0; i <= afhi->chunks_total && i * 4 + 3 < ct->size; i++)
427 afhi->chunk_table[i] = read_u32(ct->data + 4 * i);
428 }
429
430 /**
431 * Get the row of the audio file table corresponding to the given path.
432 *
433 * \param path The full path of the audio file.
434 * \param row Result pointer.
435 *
436 * \return Standard.
437 */
438 int aft_get_row_of_path(const char *path, struct osl_row **row)
439 {
440 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
441
442 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
443 }
444
445 /**
446 * Get the row of the audio file table corresponding to the given hash value.
447 *
448 * \param hash The hash value of the desired audio file.
449 * \param row Result pointer.
450 *
451 * \return Standard.
452 */
453 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
454 {
455 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
456 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
457 }
458
459 /*
460 * Get the audio file selector info object of a row.
461 *
462 * \param row Pointer to a row in the audio file table.
463 * \param obj Result pointer.
464 *
465 * \return Standard.
466 */
467 static int get_afsi_object_of_row(const struct osl_row *row,
468 struct osl_object *obj)
469 {
470 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
471 }
472
473 /**
474 * Get the osl object holding the audio file selector info, given a path.
475 *
476 *
477 * \param path The full path of the audio file.
478 * \param obj Result pointer.
479 *
480 * \return Positive on success, negative on errors.
481 */
482 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
483 {
484 struct osl_row *row;
485 int ret = aft_get_row_of_path(path, &row);
486 if (ret < 0)
487 return ret;
488 return get_afsi_object_of_row(row, obj);
489 }
490
491 /**
492 * Get the audio file selector info, given a row of the audio file table.
493 *
494 * \param row Pointer to a row in the audio file table.
495 * \param afsi Result pointer.
496 *
497 * \return Positive on success, negative on errors.
498 */
499 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
500 {
501 struct osl_object obj;
502 int ret = get_afsi_object_of_row(row, &obj);
503 if (ret < 0)
504 return ret;
505 return load_afsi(afsi, &obj);
506 }
507
508 /*
509 * Get the audio file selector info, given the path of an audio table.
510 *
511 * \param path The full path of the audio file.
512 * \param afsi Result pointer.
513 *
514 * \return Standard.
515 */
516 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
517 {
518 struct osl_object obj;
519 int ret = get_afsi_object_of_path(path, &obj);
520 if (ret < 0)
521 return ret;
522 return load_afsi(afsi, &obj);
523 }
524
525 /**
526 * Get the path of an audio file, given a row of the audio file table.
527 *
528 * \param row Pointer to a row in the audio file table.
529 * \param path Result pointer.
530 *
531 * The result is a pointer to mmapped data. The caller must not attempt
532 * to free it.
533 *
534 * \return Standard.
535 */
536 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
537 {
538 struct osl_object path_obj;
539 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
540 &path_obj));
541 if (ret < 0)
542 return ret;
543 *path = path_obj.data;
544 return 1;
545 }
546
547 /**
548 * Get the object containing the hash value of an audio file, given a row.
549 *
550 * \param row Pointer to a row of the audio file table.
551 * \param obj Result pointer.
552 *
553 * \return The return value of the underlying call to osl_get_object().
554 *
555 * \sa get_hash_of_row().
556 */
557 static int get_hash_object_of_aft_row(const struct osl_row *row,
558 struct osl_object *obj)
559 {
560 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
561 }
562
563 /**
564 * Get the hash value of an audio file, given a row of the audio file table.
565 *
566 * \param row Pointer to a row of the audio file table.
567 * \param hash Result pointer.
568 *
569 * \a hash points to mapped data and must not be freed by the caller.
570 *
571 * \return The return value of the underlying call to
572 * get_hash_object_of_aft_row().
573 */
574 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
575 {
576 struct osl_object obj;
577 int ret = get_hash_object_of_aft_row(row, &obj);
578
579 if (ret < 0)
580 return ret;
581 *hash = obj.data;
582 return 1;
583 }
584
585 /**
586 * Get the audio format handler info, given a row of the audio file table.
587 *
588 * \param row Pointer to a row of the audio file table.
589 * \param afhi Result pointer.
590 *
591 * \return The return value of the underlying call to osl_get_object().
592 *
593 * \sa get_chunk_table_of_row().
594 */
595 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
596 {
597 struct osl_object obj;
598 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
599 &obj));
600 if (ret < 0)
601 return ret;
602 load_afhi(obj.data, afhi);
603 return 1;
604 }
605
606 /* returns shmid on success */
607 static int save_afd(struct audio_file_data *afd)
608 {
609 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
610 int shmid, ret = shm_new(size);
611 void *shm_afd;
612 char *buf;
613
614 if (ret < 0)
615 return ret;
616 shmid = ret;
617 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
618 if (ret < 0)
619 goto err;
620 buf = shm_afd;
621 buf += sizeof(*afd);
622 save_chunk_table(&afd->afhi, buf);
623 if (afd->afhi.max_chunk_size == 0) { /* v0.5.x on-disk afhi */
624 set_max_chunk_size(&afd->afhi);
625 PARA_NOTICE_LOG("max chunk size unset, re-add required\n");
626 } else
627 PARA_INFO_LOG("using max chunk size from afhi\n");
628 afd->max_chunk_size = afd->afhi.max_chunk_size;
629 *(struct audio_file_data *)shm_afd = *afd;
630 shm_detach(shm_afd);
631 return shmid;
632 err:
633 shm_destroy(shmid);
634 return ret;
635 }
636
637 /**
638 * Extract a afd stored in a shared memory area.
639 *
640 * Attach the shared memory area given by \a shmid, load the audio file data
641 * stored therein and detach the area afterwards. Called by vss, after
642 * receiving a positive response to the request for the next audio file.
643 +
644 * \param shmid The identifier of the shared memory area containing the afd.
645 * \param afd Result pointer.
646 *
647 * \return Standard.
648 */
649 int load_afd(int shmid, struct audio_file_data *afd)
650 {
651 void *shm_afd;
652 int ret;
653 struct osl_object obj;
654
655 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
656 if (ret < 0)
657 return ret;
658 ret = shm_size(shmid, &obj.size);
659 if (ret < 0)
660 goto detach;
661 *afd = *(struct audio_file_data *)shm_afd;
662 obj.data = shm_afd + sizeof(*afd);
663 obj.size -= sizeof(*afd);
664 load_chunk_table(&afd->afhi, &obj);
665 ret = 1;
666 detach:
667 shm_detach(shm_afd);
668 return ret;
669 }
670
671 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
672 time_t current_time, enum ls_listing_mode lm)
673 {
674 struct tm *tm;
675 /*
676 * Omit year but show time if the given value is closer to the current
677 * time than this many seconds.
678 */
679 const time_t m = 6 * 30 * 24 * 3600; /* six months */
680
681 tm = localtime((time_t *)seconds);
682 if (!tm)
683 return -E_LOCALTIME;
684 if (lm == LS_MODE_MBOX) {
685 if (!strftime(buf, size, "%c", tm))
686 return -E_STRFTIME;
687 return 1;
688 }
689 if (*seconds > current_time - m && *seconds < current_time + m) {
690 if (!strftime(buf, size, "%b %e %k:%M", tm))
691 return -E_STRFTIME;
692 return 1;
693 }
694 /*
695 * If the given time is more than six month away from the current time,
696 * we print only the year. The additional space character in the format
697 * string below makes the formated date align nicely with dates that
698 * contain the time (those written by the above strftime() statement).
699 */
700 if (!strftime(buf, size, "%b %e %Y", tm))
701 return -E_STRFTIME;
702 return 1;
703 }
704
705 /** Compute the number of (decimal) digits of a number. */
706 #define GET_NUM_DIGITS(x, num) { \
707 typeof((x)) _tmp = PARA_ABS(x); \
708 *num = 1; \
709 if ((_tmp)) \
710 while ((_tmp) > 9) { \
711 (_tmp) /= 10; \
712 (*num)++; \
713 } \
714 }
715
716 __a_const static short unsigned get_duration_width(int seconds)
717 {
718 short unsigned width;
719 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
720
721 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
722 return 4 + (mins > 9);
723 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
724 GET_NUM_DIGITS(hours, &width);
725 return width + 6;
726 }
727
728 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
729 {
730 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
731 short unsigned max_width;
732
733 if (!hours) { /* m:ss or mm:ss */
734 max_width = opts->mode == LS_MODE_LONG?
735 opts->widths.duration_width : 4;
736 sprintf(buf, "%*u:%02d", max_width - 3, mins, seconds % 60);
737 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
738 max_width = opts->mode == LS_MODE_LONG?
739 opts->widths.duration_width : 7;
740 sprintf(buf, "%*u:%02u:%02d", max_width - 6, hours, mins,
741 seconds % 60);
742 }
743 }
744
745 static int write_attribute_items(struct para_buffer *b,
746 const char *att_bitmap, struct afs_info *afsi)
747 {
748 char *att_text;
749 int ret;
750
751 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
752 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
753 if (ret < 0)
754 return ret;
755 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
756 free(att_text);
757 return ret;
758 }
759
760 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
761 {
762 char *lyrics_name;
763
764 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
765 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
766 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
767 lyrics_name : "(none)");
768 }
769
770 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
771 {
772 char *image_name;
773
774 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
775 img_get_name_by_id(afsi->image_id, &image_name);
776 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
777 image_name : "(none)");
778 }
779
780 static void write_filename_items(struct para_buffer *b, const char *path,
781 bool basename)
782 {
783 char *val;
784
785 if (basename) {
786 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
787 return;
788 }
789 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
790 val = para_basename(path);
791 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
792 val = para_dirname(path);
793 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
794 free(val);
795 }
796
797 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
798 {
799 struct osl_object chunk_table_obj;
800 struct osl_row *aft_row;
801 int ret, i;
802 char *buf;
803
804 ret = aft_get_row_of_hash(d->hash, &aft_row);
805 if (ret < 0)
806 return ret;
807 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
808 AFTCOL_CHUNKS, &chunk_table_obj));
809 if (ret < 0)
810 return ret;
811 para_printf(b, "%s\n"
812 "chunk_time: %lu:%lu\nchunk_offsets: ",
813 d->path,
814 (long unsigned) d->afhi.chunk_tv.tv_sec,
815 (long unsigned) d->afhi.chunk_tv.tv_usec
816 );
817 buf = chunk_table_obj.data;
818 for (
819 i = 0;
820 i <= d->afhi.chunks_total && 4 * i + 3 < chunk_table_obj.size;
821 i++
822 )
823 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
824 para_printf(b, "\n");
825 ret = 1;
826 osl_close_disk_object(&chunk_table_obj);
827 return ret;
828 }
829
830 static int print_list_item(struct ls_data *d, struct ls_options *opts,
831 struct para_buffer *b, time_t current_time)
832 {
833 const struct lls_opt_result *r_a = SERVER_CMD_OPT_RESULT(LS, ADMISSIBLE, opts->lpr);
834 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME, opts->lpr);
835 const struct lls_opt_result *r_d = SERVER_CMD_OPT_RESULT(LS, UNIX_DATE, opts->lpr);
836 int ret;
837 char att_buf[65];
838 char last_played_time[30];
839 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
840 struct afs_info *afsi = &d->afsi;
841 struct afh_info *afhi = &d->afhi;
842 char asc_hash[2 * HASH_SIZE + 1];
843
844 if (opts->mode == LS_MODE_SHORT) {
845 para_printf(b, "%s\n", d->path);
846 ret = 1;
847 goto out;
848 }
849 if (opts->mode == LS_MODE_CHUNKS) {
850 ret = print_chunk_table(d, b);
851 goto out;
852 }
853 get_attribute_bitmap(&afsi->attributes, att_buf);
854 if (lls_opt_given(r_d))
855 sprintf(last_played_time, "%llu",
856 (long long unsigned)afsi->last_played);
857 else {
858 ret = get_local_time(&afsi->last_played, last_played_time,
859 sizeof(last_played_time), current_time, opts->mode);
860 if (ret < 0)
861 goto out;
862 }
863 get_duration_buf(afhi->seconds_total, duration_buf, opts);
864 if (opts->mode == LS_MODE_LONG) {
865 struct ls_widths *w = &opts->widths;
866 if (lls_opt_given(r_a))
867 para_printf(b, "%*li ", opts->widths.score_width,
868 d->score);
869 para_printf(b,
870 "%s " /* attributes */
871 "%*u " /* amp */
872 "%*u " /* image_id */
873 "%*u " /* lyrics_id */
874 "%*u " /* bitrate */
875 "%*s " /* audio format */
876 "%*u " /* frequency */
877 "%u " /* channels */
878 "%s " /* duration */
879 "%*u " /* num_played */
880 "%s " /* last_played */
881 "%s\n", /* path */
882 att_buf,
883 w->amp_width, afsi->amp,
884 w->image_id_width, afsi->image_id,
885 w->lyrics_id_width, afsi->lyrics_id,
886 w->bitrate_width, afhi->bitrate,
887 w->audio_format_width,
888 audio_format_name(afsi->audio_format_id),
889 w->frequency_width, afhi->frequency,
890 afhi->channels,
891 duration_buf,
892 w->num_played_width, afsi->num_played,
893 last_played_time,
894 d->path
895 );
896 ret = 1;
897 goto out;
898 }
899 if (opts->mode == LS_MODE_MBOX) {
900 const char *bn = para_basename(d->path);
901 para_printf(b,
902 "From foo@localhost %s\n"
903 "Received: from\nTo: bar\nFrom: a\n"
904 "Subject: %s\n\n",
905 last_played_time,
906 bn? bn : "?");
907 }
908 write_filename_items(b, d->path, lls_opt_given(r_b));
909 if (lls_opt_given(r_a))
910 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
911 ret = write_attribute_items(b, att_buf, afsi);
912 if (ret < 0)
913 goto out;
914 write_image_items(b, afsi);
915 write_lyrics_items(b, afsi);
916 hash_to_asc(d->hash, asc_hash);
917 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
918 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
919 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
920 audio_format_name(afsi->audio_format_id));
921 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
922 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
923 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
924 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
925 afhi->seconds_total);
926 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
927 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%u\n", afsi->num_played);
928 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
929 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
930 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
931 afhi->chunks_total);
932 WRITE_STATUS_ITEM(b, SI_MAX_CHUNK_SIZE, "%" PRIu32 "\n",
933 afhi->max_chunk_size);
934 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
935 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
936 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
937 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
938 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
939 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
940 if (opts->mode == LS_MODE_MBOX) {
941 struct osl_object lyrics_def;
942 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
943 if (lyrics_def.data) {
944 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
945 (char *)lyrics_def.data);
946 osl_close_disk_object(&lyrics_def);
947 }
948 }
949 out:
950 return ret;
951 }
952
953 static struct ls_data status_item_ls_data;
954 static struct osl_row *current_aft_row;
955
956 static void make_inode_status_items(struct para_buffer *pb)
957 {
958 struct stat statbuf = {.st_size = 0};
959 char *path, mtime_str[30] = "\0";
960 struct tm mtime_tm;
961 int ret;
962
963 ret = get_audio_file_path_of_row(current_aft_row, &path);
964 if (ret < 0)
965 goto out;
966 ret = stat(path, &statbuf);
967 if (ret < 0)
968 goto out;
969 localtime_r(&statbuf.st_mtime, &mtime_tm);
970 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
971 assert(ret > 0); /* number of bytes placed in mtime_str */
972 out:
973 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
974 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
975 }
976
977 static int make_status_items(void)
978 {
979 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
980 char *argv[] = {"ls", "--admissible", "--listing-mode=verbose"};
981 struct ls_options opts = {.mode = LS_MODE_VERBOSE};
982 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
983 time_t current_time;
984 int ret;
985
986 ret = lls_parse(ARRAY_SIZE(argv), argv, cmd, &opts.lpr, NULL);
987 assert(ret >= 0);
988 time(&current_time);
989 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
990 if (ret < 0)
991 goto out;
992 make_inode_status_items(&pb);
993 free(status_items);
994 status_items = pb.buf;
995
996 memset(&pb, 0, sizeof(pb));
997 pb.max_size = shm_get_shmmax() - 1;
998 pb.flags = PBF_SIZE_PREFIX;
999 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1000 if (ret < 0) {
1001 free(status_items);
1002 status_items = NULL;
1003 return ret;
1004 }
1005 make_inode_status_items(&pb);
1006 free(parser_friendly_status_items);
1007 parser_friendly_status_items = pb.buf;
1008 ret = 1;
1009 out:
1010 lls_free_parse_result(opts.lpr, cmd);
1011 return ret;
1012 }
1013
1014 /**
1015 * Open the audio file with highest score and set up an afd structure.
1016 *
1017 * \param afd Result pointer.
1018 *
1019 * On success, the numplayed field of the audio file selector info is increased
1020 * and the lastplayed time is set to the current time. Finally, the score of
1021 * the audio file is updated.
1022 *
1023 * \return Positive shmid on success, negative on errors.
1024 */
1025 int open_and_update_audio_file(struct audio_file_data *afd)
1026 {
1027 unsigned char file_hash[HASH_SIZE];
1028 struct osl_object afsi_obj;
1029 struct afs_info new_afsi;
1030 int ret;
1031 struct afsi_change_event_data aced;
1032 struct osl_object map, chunk_table_obj;
1033 struct ls_data *d = &status_item_ls_data;
1034 again:
1035 ret = score_get_best(&current_aft_row, &d->score);
1036 if (ret < 0)
1037 return ret;
1038 ret = get_hash_of_row(current_aft_row, &d->hash);
1039 if (ret < 0)
1040 return ret;
1041 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1042 if (ret < 0)
1043 return ret;
1044 PARA_NOTICE_LOG("%s\n", d->path);
1045 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1046 if (ret < 0)
1047 return ret;
1048 ret = load_afsi(&d->afsi, &afsi_obj);
1049 if (ret < 0)
1050 return ret;
1051 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1052 if (ret < 0)
1053 return ret;
1054 d->afhi = afd->afhi;
1055 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1056 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1057 AFTCOL_CHUNKS, &chunk_table_obj));
1058 if (ret < 0) {
1059 if (!afh_supports_dynamic_chunks(d->afsi.audio_format_id))
1060 return ret;
1061 PARA_INFO_LOG("no chunk table for %s\n", d->path);
1062 chunk_table_obj.data = NULL;
1063 chunk_table_obj.size = 0;
1064 } else {
1065 PARA_INFO_LOG("chunk table: %zu bytes\n", chunk_table_obj.size);
1066 }
1067 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1068 if (ret < 0)
1069 goto out;
1070 hash_function(map.data, map.size, file_hash);
1071 ret = hash_compare(file_hash, d->hash);
1072 para_munmap(map.data, map.size);
1073 if (ret) {
1074 ret = -E_HASH_MISMATCH;
1075 goto out;
1076 }
1077 new_afsi = d->afsi;
1078 new_afsi.num_played++;
1079 new_afsi.last_played = time(NULL);
1080 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1081
1082 afd->audio_format_id = d->afsi.audio_format_id;
1083 load_chunk_table(&afd->afhi, &chunk_table_obj);
1084 aced.aft_row = current_aft_row;
1085 aced.old_afsi = &d->afsi;
1086 /*
1087 * No need to update the status items as the AFSI_CHANGE event will
1088 * recreate them.
1089 */
1090 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1091 if (ret < 0)
1092 goto out;
1093 ret = save_afd(afd);
1094 out:
1095 free(afd->afhi.chunk_table);
1096 if (chunk_table_obj.data)
1097 osl_close_disk_object(&chunk_table_obj);
1098 if (ret < 0) {
1099 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1100 ret = score_delete(current_aft_row);
1101 if (ret >= 0)
1102 goto again;
1103 }
1104 return ret;
1105 }
1106
1107 static int ls_audio_format_compare(const void *a, const void *b)
1108 {
1109 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1110 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1111 }
1112
1113 static int ls_duration_compare(const void *a, const void *b)
1114 {
1115 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1116 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1117 }
1118
1119 static int ls_bitrate_compare(const void *a, const void *b)
1120 {
1121 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1122 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1123 }
1124
1125 static int ls_lyrics_id_compare(const void *a, const void *b)
1126 {
1127 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1128 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1129 }
1130
1131 static int ls_image_id_compare(const void *a, const void *b)
1132 {
1133 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1134 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1135 }
1136
1137 static int ls_channels_compare(const void *a, const void *b)
1138 {
1139 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1140 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1141 }
1142
1143 static int ls_frequency_compare(const void *a, const void *b)
1144 {
1145 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1146 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1147 }
1148
1149 static int ls_num_played_compare(const void *a, const void *b)
1150 {
1151 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1152 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1153 }
1154
1155 static int ls_last_played_compare(const void *a, const void *b)
1156 {
1157 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1158 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1159 }
1160
1161 static int ls_score_compare(const void *a, const void *b)
1162 {
1163 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1164 return NUM_COMPARE(d1->score, d2->score);
1165 }
1166
1167 static int ls_path_compare(const void *a, const void *b)
1168 {
1169 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1170 return strcmp(d1->path, d2->path);
1171 }
1172
1173 static inline bool admissible_only(struct ls_options *opts)
1174 {
1175 return SERVER_CMD_OPT_GIVEN(LS, ADMISSIBLE, opts->lpr)
1176 || opts->sorting == LS_SORT_BY_SCORE;
1177 }
1178
1179 static int sort_matching_paths(struct ls_options *options)
1180 {
1181 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME,
1182 options->lpr);
1183 size_t nmemb = options->num_matching_paths;
1184 size_t size = sizeof(*options->data_ptr);
1185 int (*compar)(const void *, const void *);
1186 int i;
1187
1188 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1189 for (i = 0; i < nmemb; i++)
1190 options->data_ptr[i] = options->data + i;
1191
1192 /* In these cases the array is already sorted */
1193 if (admissible_only(options)) {
1194 if (options->sorting == LS_SORT_BY_SCORE)
1195 return 1;
1196 } else {
1197 if (options->sorting == LS_SORT_BY_PATH && !lls_opt_given(r_b))
1198 return 1;
1199 }
1200
1201 switch (options->sorting) {
1202 case LS_SORT_BY_PATH:
1203 compar = ls_path_compare; break;
1204 case LS_SORT_BY_SCORE:
1205 compar = ls_score_compare; break;
1206 case LS_SORT_BY_LAST_PLAYED:
1207 compar = ls_last_played_compare; break;
1208 case LS_SORT_BY_NUM_PLAYED:
1209 compar = ls_num_played_compare; break;
1210 case LS_SORT_BY_FREQUENCY:
1211 compar = ls_frequency_compare; break;
1212 case LS_SORT_BY_CHANNELS:
1213 compar = ls_channels_compare; break;
1214 case LS_SORT_BY_IMAGE_ID:
1215 compar = ls_image_id_compare; break;
1216 case LS_SORT_BY_LYRICS_ID:
1217 compar = ls_lyrics_id_compare; break;
1218 case LS_SORT_BY_BITRATE:
1219 compar = ls_bitrate_compare; break;
1220 case LS_SORT_BY_DURATION:
1221 compar = ls_duration_compare; break;
1222 case LS_SORT_BY_AUDIO_FORMAT:
1223 compar = ls_audio_format_compare; break;
1224 default:
1225 return -E_BAD_SORT;
1226 }
1227 qsort(options->data_ptr, nmemb, size, compar);
1228 return 1;
1229 }
1230
1231 /* row is either an aft_row or a row of the score table */
1232 /* TODO: Only compute widths if we need them */
1233 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1234 {
1235 int ret, i;
1236 struct ls_options *options = ls_opts;
1237 bool basename_given = SERVER_CMD_OPT_GIVEN(LS, BASENAME, options->lpr);
1238 struct ls_data *d;
1239 struct ls_widths *w;
1240 unsigned short num_digits;
1241 unsigned tmp, num_inputs;
1242 struct osl_row *aft_row;
1243 long score;
1244 char *path;
1245
1246 if (admissible_only(options)) {
1247 ret = get_score_and_aft_row(row, &score, &aft_row);
1248 if (ret < 0)
1249 return ret;
1250 } else {
1251 aft_row = row;
1252 score = 0;
1253 }
1254 ret = get_audio_file_path_of_row(aft_row, &path);
1255 if (ret < 0)
1256 return ret;
1257 if (basename_given) {
1258 char *p = strrchr(path, '/');
1259 if (p)
1260 path = p + 1;
1261 }
1262 num_inputs = lls_num_inputs(options->lpr);
1263 if (num_inputs > 0) {
1264 for (i = 0; i < num_inputs; i++) {
1265 ret = fnmatch(lls_input(i, options->lpr), path, 0);
1266 if (!ret)
1267 break;
1268 if (ret == FNM_NOMATCH)
1269 continue;
1270 return -E_FNMATCH;
1271 }
1272 if (i >= num_inputs) /* no match */
1273 return 1;
1274 }
1275 tmp = options->num_matching_paths++;
1276 if (options->num_matching_paths > options->array_size) {
1277 options->array_size++;
1278 options->array_size *= 2;
1279 options->data = para_realloc(options->data, options->array_size
1280 * sizeof(*options->data));
1281 }
1282 d = options->data + tmp;
1283 ret = get_afsi_of_row(aft_row, &d->afsi);
1284 if (ret < 0)
1285 return ret;
1286 ret = get_afhi_of_row(aft_row, &d->afhi);
1287 if (ret < 0)
1288 return ret;
1289 d->path = path;
1290 ret = get_hash_of_row(aft_row, &d->hash);
1291 if (ret < 0)
1292 goto err;
1293 w = &options->widths;
1294 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1295 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1296 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1297 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1298 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1299 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1300 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1301 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1302 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1303 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1304 /* get the number of chars to print this amount of time */
1305 num_digits = get_duration_width(d->afhi.seconds_total);
1306 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1307 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1308 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1309 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1310 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1311 if (admissible_only(options)) {
1312 GET_NUM_DIGITS(score, &num_digits);
1313 num_digits++; /* add one for the sign (space or "-") */
1314 w->score_width = PARA_MAX(w->score_width, num_digits);
1315 d->score = score;
1316 }
1317 return 1;
1318 err:
1319 return ret;
1320 }
1321
1322 static int com_ls_callback(struct afs_callback_arg *aca)
1323 {
1324 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1325 struct ls_options *opts = aca->query.data;
1326 int i = 0, ret;
1327 time_t current_time;
1328 const struct lls_opt_result *r_r;
1329
1330 ret = lls_deserialize_parse_result(
1331 (char *)aca->query.data + sizeof(*opts), cmd, &opts->lpr);
1332 assert(ret >= 0);
1333 r_r = SERVER_CMD_OPT_RESULT(LS, REVERSE, opts->lpr);
1334
1335 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1336 if (admissible_only(opts))
1337 ret = admissible_file_loop(opts, prepare_ls_row);
1338 else
1339 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1340 prepare_ls_row));
1341 if (ret < 0)
1342 goto out;
1343 if (opts->num_matching_paths == 0) {
1344 ret = lls_num_inputs(opts->lpr) > 0? -E_NO_MATCH : 0;
1345 goto out;
1346 }
1347 ret = sort_matching_paths(opts);
1348 if (ret < 0)
1349 goto out;
1350 time(&current_time);
1351 if (lls_opt_given(r_r))
1352 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1353 ret = print_list_item(opts->data_ptr[i], opts,
1354 &aca->pbout, current_time);
1355 if (ret < 0)
1356 goto out;
1357 }
1358 else
1359 for (i = 0; i < opts->num_matching_paths; i++) {
1360 ret = print_list_item(opts->data_ptr[i], opts,
1361 &aca->pbout, current_time);
1362 if (ret < 0)
1363 goto out;
1364 }
1365 out:
1366 lls_free_parse_result(opts->lpr, cmd);
1367 free(opts->data);
1368 free(opts->data_ptr);
1369 return ret;
1370 }
1371
1372 /* TODO: flags -h (sort by hash) */
1373 static int com_ls(struct command_context *cc, struct lls_parse_result *lpr)
1374 {
1375 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1376 struct ls_options *opts;
1377 struct osl_object query;
1378 const struct lls_opt_result *r_l = SERVER_CMD_OPT_RESULT(LS, LISTING_MODE,
1379 lpr);
1380 const struct lls_opt_result *r_s = SERVER_CMD_OPT_RESULT(LS, SORT, lpr);
1381 int ret;
1382 char *slpr;
1383
1384 ret = lls_serialize_parse_result(lpr, cmd, NULL, &query.size);
1385 assert(ret >= 0);
1386 query.size += sizeof(*opts);
1387 query.data = para_malloc(query.size);
1388 opts = query.data;
1389 memset(opts, 0, sizeof(*opts));
1390 slpr = query.data + sizeof(*opts);
1391 ret = lls_serialize_parse_result(lpr, cmd, &slpr, NULL);
1392 assert(ret >= 0);
1393 opts->mode = LS_MODE_SHORT;
1394 opts->sorting = LS_SORT_BY_PATH;
1395 if (lls_opt_given(r_l)) {
1396 const char *val = lls_string_val(0, r_l);
1397 if (!strcmp(val, "l") || !strcmp(val, "long"))
1398 opts->mode = LS_MODE_LONG;
1399 else if (!strcmp(val, "s") || !strcmp(val, "short"))
1400 opts->mode = LS_MODE_SHORT;
1401 else if (!strcmp(val, "v") || !strcmp(val, "verbose"))
1402 opts->mode = LS_MODE_VERBOSE;
1403 else if (!strcmp(val, "m") || !strcmp(val, "mbox"))
1404 opts->mode = LS_MODE_MBOX;
1405 else if (!strcmp(val, "c") || !strcmp(val, "chunk-table"))
1406 opts->mode = LS_MODE_MBOX;
1407 else if (!strcmp(val, "p") || !strcmp(val, "parser-friendly"))
1408 opts->mode = LS_MODE_PARSER;
1409 else {
1410 ret = -E_AFT_SYNTAX;
1411 goto out;
1412 }
1413 }
1414 if (lls_opt_given(r_s)) {
1415 const char *val = lls_string_val(0, r_s);
1416 if (!strcmp(val, "p") || !strcmp(val, "path"))
1417 opts->sorting = LS_SORT_BY_PATH;
1418 else if (!strcmp(val, "s") || !strcmp(val, "score"))
1419 opts->sorting = LS_SORT_BY_SCORE;
1420 else if (!strcmp(val, "l") || !strcmp(val, "lastplayed"))
1421 opts->sorting = LS_SORT_BY_LAST_PLAYED;
1422 else if (!strcmp(val, "n") || !strcmp(val, "numplayed"))
1423 opts->sorting = LS_SORT_BY_NUM_PLAYED;
1424 else if (!strcmp(val, "f") || !strcmp(val, "frquency"))
1425 opts->sorting = LS_SORT_BY_FREQUENCY;
1426 else if (!strcmp(val, "c") || !strcmp(val, "channels"))
1427 opts->sorting = LS_SORT_BY_CHANNELS;
1428 else if (!strcmp(val, "i") || !strcmp(val, "image-id"))
1429 opts->sorting = LS_SORT_BY_IMAGE_ID;
1430 else if (!strcmp(val, "y") || !strcmp(val, "lyrics-id"))
1431 opts->sorting = LS_SORT_BY_LYRICS_ID;
1432 else if (!strcmp(val, "b") || !strcmp(val, "bitrate"))
1433 opts->sorting = LS_SORT_BY_BITRATE;
1434 else if (!strcmp(val, "d") || !strcmp(val, "duration"))
1435 opts->sorting = LS_SORT_BY_DURATION;
1436 else if (!strcmp(val, "a") || !strcmp(val, "audio-format"))
1437 opts->sorting = LS_SORT_BY_AUDIO_FORMAT;
1438 else {
1439 ret = -E_AFT_SYNTAX;
1440 goto out;
1441 }
1442 }
1443 ret = send_callback_request(com_ls_callback, &query,
1444 afs_cb_result_handler, cc);
1445 out:
1446 free(query.data);
1447 return ret;
1448 }
1449 EXPORT_SERVER_CMD_HANDLER(ls);
1450
1451 /**
1452 * Call the given function for each file in the audio file table.
1453 *
1454 * \param private_data An arbitrary data pointer, passed to \a func.
1455 * \param func The custom function to be called.
1456 *
1457 * \return Standard.
1458 */
1459 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1460 {
1461 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1462 func));
1463 }
1464
1465 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1466 {
1467 int ret = aft_get_row_of_hash(hash, result);
1468
1469 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1470 return 0;
1471 return ret;
1472 }
1473
1474 static int find_path_brother(const char *path, struct osl_row **result)
1475 {
1476 int ret = aft_get_row_of_path(path, result);
1477
1478 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1479 return 0;
1480 return ret;
1481 }
1482
1483 /** The format of the data stored by save_audio_file_data(). */
1484 enum com_add_buffer_offsets {
1485 /* afhi (if present) starts at this offset. */
1486 CAB_AFHI_OFFSET_POS = 0,
1487 /** Start of the chunk table (if present). */
1488 CAB_CHUNKS_OFFSET_POS = 4,
1489 /** Start of the (serialized) lopsub parse result. */
1490 CAB_LPR_OFFSET = 8,
1491 /** Audio format id. */
1492 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1493 /** The hash of the audio file being added. */
1494 CAB_HASH_OFFSET = 13,
1495 /** Start of the path of the audio file. */
1496 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1497 };
1498
1499 /*
1500 * Store the given data to a single buffer. Doesn't need the audio file selector
1501 * info struct as the server knows it as well.
1502 *
1503 * It's OK to call this with afhi == NULL. In this case, the audio format
1504 * handler info won't be stored in the buffer.
1505 */
1506 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1507 struct afh_info *afhi, const char *slpr, size_t slpr_size,
1508 uint8_t audio_format_num, struct osl_object *obj)
1509 {
1510 size_t path_len = strlen(path) + 1;
1511 size_t afhi_size = sizeof_afhi_buf(afhi);
1512 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1513 + sizeof_chunk_table(afhi) + slpr_size;
1514 char *buf = para_malloc(size);
1515 uint32_t pos;
1516
1517 assert(size <= ~(uint32_t)0);
1518 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1519 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1520 strcpy(buf + CAB_PATH_OFFSET, path);
1521 pos = CAB_PATH_OFFSET + path_len;
1522 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1523 save_afhi(afhi, buf + pos);
1524 pos += afhi_size;
1525 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1526 if (afhi) {
1527 save_chunk_table(afhi, buf + pos);
1528 pos += sizeof_chunk_table(afhi);
1529 }
1530 write_u32(buf + CAB_LPR_OFFSET, pos);
1531 memcpy(buf + pos, slpr, slpr_size);
1532 assert(pos + slpr_size == size);
1533 obj->data = buf;
1534 obj->size = size;
1535 }
1536
1537 /*
1538
1539 Overview of the add command.
1540
1541 Input: What was passed to the callback by the command handler.
1542 ~~~~~~
1543 HS: Hash sister. Whether an audio file with identical hash
1544 already exists in the osl database.
1545
1546 PB: Path brother. Whether a file with the given path exists
1547 in the table.
1548
1549 F: Force flag given. Whether add was called with -f.
1550
1551 output: Action performed by the callback.
1552 ~~~~~~~
1553 AFHI: Whether afhi and chunk table are computed and sent.
1554 ACTION: Table modifications to be done by the callback.
1555
1556 +----+----+---+------+---------------------------------------------------+
1557 | HS | PB | F | AFHI | ACTION
1558 +----+----+---+------+---------------------------------------------------+
1559 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1560 | | update path, keep afsi
1561 +----+----+---+------+---------------------------------------------------+
1562 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1563 | | otherwise: remove PB, HS: update path, keep afhi,
1564 | | afsi.
1565 +----+----+---+------+---------------------------------------------------+
1566 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1567 | | HS, keep afsi
1568 +----+----+---+------+---------------------------------------------------+
1569 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1570 +----+----+---+------+---------------------------------------------------+
1571 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1572 | | (force has no effect)
1573 +----+----+---+------+---------------------------------------------------+
1574 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1575 +----+----+---+------+---------------------------------------------------+
1576 | N | N | Y | Y | (new file) create new entry (force has no effect)
1577 +----+----+---+------+---------------------------------------------------+
1578 | N | N | N | Y | (new file) create new entry
1579 +----+----+---+------+---------------------------------------------------+
1580
1581 Notes:
1582
1583 afhi <=> force or no HS
1584 F => AFHI
1585
1586 */
1587
1588 static int com_add_callback(struct afs_callback_arg *aca)
1589 {
1590 char *buf = aca->query.data, *path;
1591 struct osl_row *pb, *aft_row;
1592 struct osl_row *hs;
1593 struct osl_object objs[NUM_AFT_COLUMNS];
1594 unsigned char *hash;
1595 char asc[2 * HASH_SIZE + 1];
1596 int ret;
1597 char afsi_buf[AFSI_SIZE];
1598 char *slpr = buf + read_u32(buf + CAB_LPR_OFFSET);
1599 struct afs_info default_afsi = {.last_played = 0};
1600 uint16_t afhi_offset, chunks_offset;
1601 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1602 const struct lls_opt_result *r_f, *r_v;
1603
1604 ret = lls_deserialize_parse_result(slpr, cmd, &aca->lpr);
1605 assert(ret >= 0);
1606 r_f = SERVER_CMD_OPT_RESULT(ADD, FORCE, aca->lpr);
1607 r_v = SERVER_CMD_OPT_RESULT(ADD, VERBOSE, aca->lpr);
1608
1609 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1610 hash_to_asc(hash, asc);
1611 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1612 objs[AFTCOL_HASH].size = HASH_SIZE;
1613
1614 path = buf + CAB_PATH_OFFSET;
1615 objs[AFTCOL_PATH].data = path;
1616 objs[AFTCOL_PATH].size = strlen(path) + 1;
1617
1618 PARA_INFO_LOG("request to add %s\n", path);
1619 ret = find_hash_sister(hash, &hs);
1620 if (ret < 0)
1621 goto out;
1622 ret = find_path_brother(path, &pb);
1623 if (ret < 0)
1624 goto out;
1625 if (hs && pb && hs == pb && !lls_opt_given(r_f)) {
1626 if (lls_opt_given(r_v))
1627 para_printf(&aca->pbout, "ignoring duplicate\n");
1628 ret = 1;
1629 goto out;
1630 }
1631 if (hs && hs != pb) {
1632 struct osl_object obj;
1633 if (pb) { /* hs trumps pb, remove pb */
1634 if (lls_opt_given(r_v))
1635 para_printf(&aca->pbout, "removing %s\n", path);
1636 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1637 if (ret < 0)
1638 goto out;
1639 ret = osl(osl_del_row(audio_file_table, pb));
1640 if (ret < 0)
1641 goto out;
1642 pb = NULL;
1643 }
1644 /* file rename, update hs' path */
1645 if (lls_opt_given(r_v)) {
1646 ret = osl(osl_get_object(audio_file_table, hs,
1647 AFTCOL_PATH, &obj));
1648 if (ret < 0)
1649 goto out;
1650 para_printf(&aca->pbout, "renamed from %s\n",
1651 (char *)obj.data);
1652 }
1653 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1654 &objs[AFTCOL_PATH]));
1655 if (ret < 0)
1656 goto out;
1657 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1658 if (ret < 0)
1659 goto out;
1660 if (!lls_opt_given(r_f))
1661 goto out;
1662 }
1663 /* no hs or force mode, child must have sent afhi */
1664 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1665 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1666
1667 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1668 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1669 ret = -E_NO_AFHI;
1670 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1671 goto out;
1672 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1673 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1674 if (pb && !hs) { /* update pb's hash */
1675 char old_asc[2 * HASH_SIZE + 1];
1676 unsigned char *old_hash;
1677 ret = get_hash_of_row(pb, &old_hash);
1678 if (ret < 0)
1679 goto out;
1680 hash_to_asc(old_hash, old_asc);
1681 if (lls_opt_given(r_v))
1682 para_printf(&aca->pbout, "file change: %s -> %s\n",
1683 old_asc, asc);
1684 ret = osl(osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1685 &objs[AFTCOL_HASH]));
1686 if (ret < 0)
1687 goto out;
1688 }
1689 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1690 struct osl_row *row = pb? pb : hs;
1691 /* update afhi and chunk_table */
1692 if (lls_opt_given(r_v))
1693 para_printf(&aca->pbout,
1694 "updating afhi and chunk table\n");
1695 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1696 &objs[AFTCOL_AFHI]));
1697 if (ret < 0)
1698 goto out;
1699 /* truncate the file to size zero if there is no chunk table */
1700 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1701 &objs[AFTCOL_CHUNKS]));
1702 if (ret < 0)
1703 goto out;
1704 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1705 goto out;
1706 }
1707 /* new entry, use default afsi */
1708 if (lls_opt_given(r_v))
1709 para_printf(&aca->pbout, "new file\n");
1710 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1711 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1712
1713 objs[AFTCOL_AFSI].data = &afsi_buf;
1714 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1715 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1716 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1717 if (ret < 0)
1718 goto out;
1719 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1720 out:
1721 if (ret < 0)
1722 para_printf(&aca->pbout, "could not add %s\n", path);
1723 lls_free_parse_result(aca->lpr, cmd);
1724 return ret;
1725 }
1726
1727 /* Used by com_add(). */
1728 struct private_add_data {
1729 /* The pointer passed to the original command handler. */
1730 struct command_context *cc;
1731 /* Contains the flags given at the command line. */
1732 struct lls_parse_result *lpr;
1733 /* Serialized lopsub parse result. */
1734 char *slpr;
1735 /* Number of bytes. */
1736 size_t slpr_size;
1737 };
1738
1739 static int path_brother_callback(struct afs_callback_arg *aca)
1740 {
1741 char *path = aca->query.data;
1742 struct osl_row *path_brother;
1743 int ret = find_path_brother(path, &path_brother);
1744 if (ret <= 0)
1745 return ret;
1746 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1747 sizeof(path_brother));
1748 }
1749
1750 static int hash_sister_callback(struct afs_callback_arg *aca)
1751 {
1752 unsigned char *hash = aca->query.data;
1753 struct osl_row *hash_sister;
1754 int ret = find_hash_sister(hash, &hash_sister);
1755
1756 if (ret <= 0)
1757 return ret;
1758 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1759 sizeof(hash_sister));
1760 }
1761
1762 static int get_row_pointer_from_result(struct osl_object *result,
1763 __a_unused uint8_t band, void *private)
1764 {
1765 struct osl_row **row = private;
1766
1767 if (band == SBD_OUTPUT)
1768 *row = *(struct osl_row **)(result->data);
1769 return 1;
1770 }
1771
1772 static int add_one_audio_file(const char *path, void *private_data)
1773 {
1774 int ret, send_ret = 1, fd;
1775 uint8_t format_num = -1;
1776 struct private_add_data *pad = private_data;
1777 struct afh_info afhi, *afhi_ptr = NULL;
1778 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1779 struct osl_object map, obj = {.data = NULL}, query;
1780 unsigned char hash[HASH_SIZE];
1781 bool a_given = SERVER_CMD_OPT_GIVEN(ADD, ALL, pad->lpr);
1782 bool f_given = SERVER_CMD_OPT_GIVEN(ADD, FORCE, pad->lpr);
1783 bool l_given = SERVER_CMD_OPT_GIVEN(ADD, LAZY, pad->lpr);
1784 bool v_given = SERVER_CMD_OPT_GIVEN(ADD, VERBOSE, pad->lpr);
1785
1786 ret = guess_audio_format(path);
1787 if (ret < 0 && !a_given) {
1788 ret = 0;
1789 goto out_free;
1790 }
1791 query.data = (char *)path;
1792 query.size = strlen(path) + 1;
1793 ret = send_callback_request(path_brother_callback, &query,
1794 get_row_pointer_from_result, &pb);
1795 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1796 goto out_free;
1797 ret = 1;
1798 if (pb && l_given) { /* lazy is really cheap */
1799 if (v_given)
1800 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1801 "lazy-ignore: %s\n", path);
1802 goto out_free;
1803 }
1804 /* We still want to add this file. Compute its hash. */
1805 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1806 if (ret < 0)
1807 goto out_free;
1808 hash_function(map.data, map.size, hash);
1809
1810 /* Check whether the database contains a file with the same hash. */
1811 query.data = hash;
1812 query.size = HASH_SIZE;
1813 ret = send_callback_request(hash_sister_callback, &query,
1814 get_row_pointer_from_result, &hs);
1815 if (ret < 0)
1816 goto out_unmap;
1817 /* Return success if we already know this file. */
1818 ret = 1;
1819 if (pb && hs && hs == pb && !f_given) {
1820 if (v_given)
1821 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1822 "%s exists, not forcing update\n", path);
1823 goto out_unmap;
1824 }
1825 /*
1826 * We won't recalculate the audio format info and the chunk table if
1827 * there is a hash sister and FORCE was not given.
1828 */
1829 if (!hs || f_given) {
1830 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1831 if (ret < 0)
1832 goto out_unmap;
1833 format_num = ret;
1834 afhi_ptr = &afhi;
1835 }
1836 munmap(map.data, map.size);
1837 close(fd);
1838 if (v_given) {
1839 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1840 "adding %s\n", path);
1841 if (send_ret < 0)
1842 goto out_free;
1843 }
1844 save_add_callback_buffer(hash, path, afhi_ptr, pad->slpr,
1845 pad->slpr_size, format_num, &obj);
1846 /* Ask afs to consider this entry for adding. */
1847 ret = send_callback_request(com_add_callback, &obj,
1848 afs_cb_result_handler, pad->cc);
1849 goto out_free;
1850
1851 out_unmap:
1852 close(fd);
1853 munmap(map.data, map.size);
1854 out_free:
1855 if (ret < 0 && send_ret >= 0)
1856 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1857 "failed to add %s (%s)\n", path, para_strerror(-ret));
1858 free(obj.data);
1859 clear_afhi(afhi_ptr);
1860 /* Stop adding files only on send errors. */
1861 return send_ret;
1862 }
1863
1864 static int com_add(struct command_context *cc, struct lls_parse_result *lpr)
1865 {
1866 int i, ret;
1867 struct private_add_data pad = {.cc = cc, .lpr = lpr};
1868 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1869 unsigned num_inputs;
1870 char *errctx;
1871
1872 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
1873 if (ret < 0) {
1874 send_errctx(cc, errctx);
1875 return ret;
1876 }
1877 ret = lls_serialize_parse_result(lpr, cmd, &pad.slpr, &pad.slpr_size);
1878 assert(ret >= 0);
1879 num_inputs = lls_num_inputs(lpr);
1880 for (i = 0; i < num_inputs; i++) {
1881 char *path;
1882 ret = verify_path(lls_input(i, lpr), &path);
1883 if (ret < 0) {
1884 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1885 lls_input(i, lpr), para_strerror(-ret));
1886 if (ret < 0)
1887 goto out;
1888 continue;
1889 }
1890 if (ret == 1) /* directory */
1891 ret = for_each_file_in_dir(path, add_one_audio_file,
1892 &pad);
1893 else /* regular file */
1894 ret = add_one_audio_file(path, &pad);
1895 if (ret < 0) {
1896 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1897 para_strerror(-ret));
1898 free(path);
1899 return ret;
1900 }
1901 free(path);
1902 }
1903 ret = 1;
1904 out:
1905 free(pad.slpr);
1906 return ret;
1907 }
1908 EXPORT_SERVER_CMD_HANDLER(add);
1909
1910 /**
1911 * Flags used by the touch command.
1912 *
1913 * \sa com_touch().
1914 */
1915 enum touch_flags {
1916 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1917 TOUCH_FLAG_FNM_PATHNAME = 1,
1918 /** Activates verbose mode. */
1919 TOUCH_FLAG_VERBOSE = 2
1920 };
1921
1922 static int touch_audio_file(__a_unused struct osl_table *table,
1923 struct osl_row *row, const char *name, void *data)
1924 {
1925 struct afs_callback_arg *aca = data;
1926 bool v_given = SERVER_CMD_OPT_GIVEN(TOUCH, VERBOSE, aca->lpr);
1927 const struct lls_opt_result *r_n, *r_l, *r_i, *r_y, *r_a;
1928 int ret;
1929 struct osl_object obj;
1930 struct afs_info old_afsi, new_afsi;
1931 bool no_options;
1932 struct afsi_change_event_data aced;
1933
1934 r_n = SERVER_CMD_OPT_RESULT(TOUCH, NUMPLAYED, aca->lpr);
1935 r_l = SERVER_CMD_OPT_RESULT(TOUCH, LASTPLAYED, aca->lpr);
1936 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1937 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
1938 r_a = SERVER_CMD_OPT_RESULT(TOUCH, AMP, aca->lpr);
1939 no_options = !lls_opt_given(r_n) && !lls_opt_given(r_l) && !lls_opt_given(r_i)
1940 && !lls_opt_given(r_y) && !lls_opt_given(r_a);
1941
1942 ret = get_afsi_object_of_row(row, &obj);
1943 if (ret < 0) {
1944 para_printf(&aca->pbout, "cannot touch %s\n", name);
1945 return ret;
1946 }
1947 ret = load_afsi(&old_afsi, &obj);
1948 if (ret < 0) {
1949 para_printf(&aca->pbout, "cannot touch %s\n", name);
1950 return ret;
1951 }
1952 new_afsi = old_afsi;
1953 if (no_options) {
1954 new_afsi.num_played++;
1955 new_afsi.last_played = time(NULL);
1956 if (v_given)
1957 para_printf(&aca->pbout, "%s: num_played = %u, "
1958 "last_played = now()\n", name,
1959 new_afsi.num_played);
1960 } else {
1961 if (lls_opt_given(r_l))
1962 new_afsi.last_played = lls_uint64_val(0, r_l);
1963 if (lls_opt_given(r_n))
1964 new_afsi.num_played = lls_uint32_val(0, r_n);
1965 if (lls_opt_given(r_i))
1966 new_afsi.image_id = lls_uint32_val(0, r_i);
1967 if (lls_opt_given(r_y))
1968 new_afsi.lyrics_id = lls_uint32_val(0, r_y);
1969 if (lls_opt_given(r_a))
1970 new_afsi.amp = lls_uint32_val(0, r_a);
1971 if (v_given)
1972 para_printf(&aca->pbout, "touching %s\n", name);
1973 }
1974 save_afsi(&new_afsi, &obj); /* in-place update */
1975 aced.aft_row = row;
1976 aced.old_afsi = &old_afsi;
1977 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
1978 }
1979
1980 static int com_touch_callback(struct afs_callback_arg *aca)
1981 {
1982 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
1983 bool p_given;
1984 const struct lls_opt_result *r_i, *r_y;
1985 int ret;
1986 struct pattern_match_data pmd = {
1987 .table = audio_file_table,
1988 .loop_col_num = AFTCOL_HASH,
1989 .match_col_num = AFTCOL_PATH,
1990 .data = aca,
1991 .action = touch_audio_file
1992 };
1993
1994 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
1995 assert(ret >= 0);
1996 pmd.lpr = aca->lpr;
1997
1998 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1999 if (lls_opt_given(r_i)) {
2000 uint32_t id = lls_uint32_val(0, r_i);
2001 ret = img_get_name_by_id(id, NULL);
2002 if (ret < 0) {
2003 para_printf(&aca->pbout, "invalid image ID: %u\n", id);
2004 return ret;
2005 }
2006 }
2007 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
2008 if (lls_opt_given(r_y)) {
2009 uint32_t id = lls_uint32_val(0, r_y);
2010 ret = lyr_get_name_by_id(id, NULL);
2011 if (ret < 0) {
2012 para_printf(&aca->pbout, "invalid lyrics ID: %u\n", id);
2013 return ret;
2014 }
2015 }
2016 p_given = SERVER_CMD_OPT_GIVEN(TOUCH, PATHNAME_MATCH, aca->lpr);
2017 if (p_given)
2018 pmd.fnmatch_flags |= FNM_PATHNAME;
2019 ret = for_each_matching_row(&pmd);
2020 if (ret >= 0 && pmd.num_matches == 0)
2021 ret = -E_NO_MATCH;
2022 lls_free_parse_result(aca->lpr, cmd);
2023 return ret;
2024 }
2025
2026 static int com_touch(struct command_context *cc, struct lls_parse_result *lpr)
2027 {
2028 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
2029 int ret;
2030 char *errctx;
2031
2032 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2033 if (ret < 0) {
2034 send_errctx(cc, errctx);
2035 return ret;
2036 }
2037 return send_lls_callback_request(com_touch_callback, cmd, lpr, cc);
2038 }
2039 EXPORT_SERVER_CMD_HANDLER(touch);
2040
2041 static int remove_audio_file(__a_unused struct osl_table *table,
2042 struct osl_row *row, const char *name, void *data)
2043 {
2044 struct afs_callback_arg *aca = data;
2045 bool v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2046 int ret;
2047
2048 if (v_given)
2049 para_printf(&aca->pbout, "removing %s\n", name);
2050 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2051 if (ret < 0)
2052 return ret;
2053 ret = osl(osl_del_row(audio_file_table, row));
2054 if (ret < 0)
2055 para_printf(&aca->pbout, "cannot remove %s\n", name);
2056 return ret;
2057 }
2058
2059 static int com_rm_callback(struct afs_callback_arg *aca)
2060 {
2061 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2062 int ret;
2063 struct pattern_match_data pmd = {
2064 .table = audio_file_table,
2065 .loop_col_num = AFTCOL_HASH,
2066 .match_col_num = AFTCOL_PATH,
2067 .data = aca,
2068 .action = remove_audio_file
2069 };
2070 bool v_given, p_given, f_given;
2071
2072 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2073 assert(ret >= 0);
2074 pmd.lpr = aca->lpr;
2075 v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2076 p_given = SERVER_CMD_OPT_GIVEN(RM, PATHNAME_MATCH, aca->lpr);
2077 f_given = SERVER_CMD_OPT_GIVEN(RM, FORCE, aca->lpr);
2078
2079 if (p_given)
2080 pmd.fnmatch_flags |= FNM_PATHNAME;
2081 ret = for_each_matching_row(&pmd);
2082 if (ret < 0)
2083 goto out;
2084 if (pmd.num_matches == 0) {
2085 if (!f_given)
2086 ret = -E_NO_MATCH;
2087 } else if (v_given)
2088 para_printf(&aca->pbout, "removed %u file(s)\n",
2089 pmd.num_matches);
2090 out:
2091 lls_free_parse_result(aca->lpr, cmd);
2092 return ret;
2093 }
2094
2095 /* TODO options: -r (recursive) */
2096 static int com_rm(struct command_context *cc, struct lls_parse_result *lpr)
2097 {
2098 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2099 char *errctx;
2100 int ret;
2101
2102 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2103 if (ret < 0) {
2104 send_errctx(cc, errctx);
2105 return ret;
2106 }
2107 return send_lls_callback_request(com_rm_callback, cmd, lpr, cc);
2108 }
2109 EXPORT_SERVER_CMD_HANDLER(rm);
2110
2111 /** Data passed to the action handler of com_cpsi(). */
2112 struct cpsi_action_data {
2113 /** Values are copied from here. */
2114 struct afs_info source_afsi;
2115 /** What was passed to com_cpsi_callback(). */
2116 struct afs_callback_arg *aca;
2117 bool copy_all;
2118 };
2119
2120 static int copy_selector_info(__a_unused struct osl_table *table,
2121 struct osl_row *row, const char *name, void *data)
2122 {
2123 struct cpsi_action_data *cad = data;
2124 struct osl_object target_afsi_obj;
2125 int ret;
2126 struct afs_info old_afsi, target_afsi;
2127 struct afsi_change_event_data aced;
2128 bool a_given, y_given, i_given, l_given, n_given, v_given;
2129
2130 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, cad->aca->lpr);
2131 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, cad->aca->lpr);
2132 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, cad->aca->lpr);
2133 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, cad->aca->lpr);
2134 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, cad->aca->lpr);
2135 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, cad->aca->lpr);
2136
2137 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2138 if (ret < 0)
2139 return ret;
2140 ret = load_afsi(&target_afsi, &target_afsi_obj);
2141 if (ret < 0)
2142 return ret;
2143 old_afsi = target_afsi;
2144 if (cad->copy_all || y_given)
2145 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2146 if (cad->copy_all || i_given)
2147 target_afsi.image_id = cad->source_afsi.image_id;
2148 if (cad->copy_all || l_given)
2149 target_afsi.last_played = cad->source_afsi.last_played;
2150 if (cad->copy_all || n_given)
2151 target_afsi.num_played = cad->source_afsi.num_played;
2152 if (cad->copy_all || a_given)
2153 target_afsi.attributes = cad->source_afsi.attributes;
2154 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2155 if (v_given)
2156 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2157 aced.aft_row = row;
2158 aced.old_afsi = &old_afsi;
2159 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2160 }
2161
2162 static int com_cpsi_callback(struct afs_callback_arg *aca)
2163 {
2164 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2165 bool a_given, y_given, i_given, l_given, n_given, v_given;
2166 struct cpsi_action_data cad = {.aca = aca};
2167 int ret;
2168 struct pattern_match_data pmd = {
2169 .table = audio_file_table,
2170 .loop_col_num = AFTCOL_HASH,
2171 .match_col_num = AFTCOL_PATH,
2172 .input_skip = 1, /* skip first argument (source file) */
2173 .data = &cad,
2174 .action = copy_selector_info
2175 };
2176
2177 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2178 assert(ret >= 0);
2179 pmd.lpr = aca->lpr;
2180
2181 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, aca->lpr);
2182 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, aca->lpr);
2183 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, aca->lpr);
2184 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, aca->lpr);
2185 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, aca->lpr);
2186 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, aca->lpr);
2187 cad.copy_all = !a_given && !y_given && !i_given && !l_given && !n_given;
2188
2189 ret = get_afsi_of_path(lls_input(0, aca->lpr), &cad.source_afsi);
2190 if (ret < 0)
2191 goto out;
2192 ret = for_each_matching_row(&pmd);
2193 if (ret < 0)
2194 goto out;
2195 if (pmd.num_matches > 0) {
2196 if (v_given)
2197 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2198 pmd.num_matches);
2199 } else
2200 ret = -E_NO_MATCH;
2201 out:
2202 lls_free_parse_result(aca->lpr, cmd);
2203 return ret;
2204 }
2205
2206 static int com_cpsi(struct command_context *cc, struct lls_parse_result *lpr)
2207 {
2208 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2209 char *errctx;
2210 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2211 if (ret < 0) {
2212 send_errctx(cc, errctx);
2213 return ret;
2214 }
2215 return send_lls_callback_request(com_cpsi_callback, cmd, lpr, cc);
2216 }
2217 EXPORT_SERVER_CMD_HANDLER(cpsi);
2218
2219 struct change_atts_data {
2220 uint64_t add_mask, del_mask;
2221 struct afs_callback_arg *aca;
2222 };
2223
2224 static int change_atts(__a_unused struct osl_table *table,
2225 struct osl_row *row, __a_unused const char *name, void *data)
2226 {
2227 int ret;
2228 struct osl_object obj;
2229 struct afs_info old_afsi, new_afsi;
2230 struct afsi_change_event_data aced = {
2231 .aft_row = row,
2232 .old_afsi = &old_afsi
2233 };
2234 struct change_atts_data *cad = data;
2235
2236 ret = get_afsi_object_of_row(row, &obj);
2237 if (ret < 0)
2238 return ret;
2239 ret = load_afsi(&old_afsi, &obj);
2240 if (ret < 0)
2241 return ret;
2242 new_afsi = old_afsi;
2243 new_afsi.attributes |= cad->add_mask;
2244 new_afsi.attributes &= ~cad->del_mask;
2245 save_afsi(&new_afsi, &obj); /* in-place update */
2246 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2247 }
2248
2249 static int com_setatt_callback(struct afs_callback_arg *aca)
2250 {
2251 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2252 int i, ret;
2253 struct change_atts_data cad = {.aca = aca};
2254 struct pattern_match_data pmd = {
2255 .table = audio_file_table,
2256 .loop_col_num = AFTCOL_HASH,
2257 .match_col_num = AFTCOL_PATH,
2258 .pm_flags = PM_SKIP_EMPTY_NAME,
2259 .data = &cad,
2260 .action = change_atts
2261 };
2262 unsigned num_inputs;
2263
2264 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2265 assert(ret >= 0);
2266 pmd.lpr = aca->lpr;
2267
2268 num_inputs = lls_num_inputs(aca->lpr);
2269 for (i = 0; i < num_inputs; i++) {
2270 unsigned char bitnum;
2271 uint64_t one = 1;
2272 const char *arg = lls_input(i, aca->lpr);
2273 char c, *p;
2274 size_t len = strlen(arg);
2275
2276 ret = -E_ATTR_SYNTAX;
2277 if (len == 0)
2278 goto out;
2279 c = arg[len - 1];
2280 if (c != '+' && c != '-') {
2281 if (cad.add_mask == 0 && cad.del_mask == 0)
2282 goto out; /* no attribute modifier given */
2283 goto set_atts;
2284 }
2285 p = para_malloc(len);
2286 memcpy(p, arg, len - 1);
2287 p[len - 1] = '\0';
2288 ret = get_attribute_bitnum_by_name(p, &bitnum);
2289 free(p);
2290 if (ret < 0) {
2291 para_printf(&aca->pbout, "invalid argument: %s\n", arg);
2292 goto out;
2293 }
2294 if (c == '+')
2295 cad.add_mask |= (one << bitnum);
2296 else
2297 cad.del_mask |= (one << bitnum);
2298 }
2299 /* no pattern given */
2300 ret = -E_ATTR_SYNTAX;
2301 goto out;
2302 set_atts:
2303 pmd.input_skip = i;
2304 ret = for_each_matching_row(&pmd);
2305 if (ret >= 0 && pmd.num_matches == 0)
2306 ret = -E_NO_MATCH;
2307 out:
2308 lls_free_parse_result(aca->lpr, cmd);
2309 return ret;
2310 }
2311
2312 static int com_setatt(struct command_context *cc, struct lls_parse_result *lpr)
2313 {
2314 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2315 char *errctx;
2316 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2317
2318 if (ret < 0) {
2319 send_errctx(cc, errctx);
2320 return ret;
2321 }
2322 return send_lls_callback_request(com_setatt_callback, cmd, lpr, cc);
2323 }
2324 EXPORT_SERVER_CMD_HANDLER(setatt);
2325
2326 static int afs_stat_callback(struct afs_callback_arg *aca)
2327 {
2328 int *parser_friendly = aca->query.data;
2329 char *buf = *parser_friendly?
2330 parser_friendly_status_items : status_items;
2331
2332 if (!buf)
2333 return 0;
2334 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2335 }
2336
2337 /**
2338 * Get the current afs status items from the afs process and send it.
2339 *
2340 * \param cc The command context, used e.g. for data encryption.
2341 * \param parser_friendly Whether parser-friendly output format should be used.
2342 *
2343 * As the contents of the afs status items change in time and the command
2344 * handler only has a COW version created at fork time, it can not send
2345 * up-to-date afs status items directly. Therefore the usual callback mechanism
2346 * is used to pass the status items from the afs process to the command handler
2347 * via a shared memory area and a pipe.
2348 *
2349 * \return The return value of the underlying call to \ref send_callback_request().
2350 */
2351 int send_afs_status(struct command_context *cc, int parser_friendly)
2352 {
2353 struct osl_object query = {.data = &parser_friendly,
2354 .size = sizeof(parser_friendly)};
2355
2356 return send_callback_request(afs_stat_callback, &query,
2357 afs_cb_result_handler, cc);
2358 }
2359
2360 /* returns success on non-fatal errors to keep the loop going */
2361 static int check_audio_file(struct osl_row *row, void *data)
2362 {
2363 char *path;
2364 struct para_buffer *pb = data;
2365 struct stat statbuf;
2366 int ret = get_audio_file_path_of_row(row, &path);
2367 struct afs_info afsi;
2368 char *blob_name;
2369
2370 if (ret < 0) {
2371 para_printf(pb, "%s\n", para_strerror(-ret));
2372 return ret;
2373 }
2374 if (stat(path, &statbuf) < 0)
2375 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2376 else if (!S_ISREG(statbuf.st_mode))
2377 para_printf(pb, "%s: not a regular file\n", path);
2378 ret = get_afsi_of_row(row, &afsi);
2379 if (ret < 0) {
2380 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2381 return 1;
2382 }
2383 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2384 if (ret < 0)
2385 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2386 para_strerror(-ret));
2387 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2388 if (ret < 0)
2389 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2390 para_strerror(-ret));
2391 return 0;
2392 }
2393
2394 /**
2395 * Check the audio file table for inconsistencies.
2396 *
2397 * \param aca Only ->pbout is used for diagnostics.
2398 *
2399 * \return Standard. Inconsistencies are reported but not regarded as an error.
2400 *
2401 * \sa com_check().
2402 */
2403 int aft_check_callback(struct afs_callback_arg *aca)
2404 {
2405 para_printf(&aca->pbout, "checking audio file table...\n");
2406 return audio_file_loop(&aca->pbout, check_audio_file);
2407 }
2408
2409 struct aft_check_atts_data {
2410 uint64_t att_mask;
2411 struct para_buffer *pb;
2412 };
2413
2414 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2415 {
2416 struct aft_check_atts_data *acad = data;
2417 int ret;
2418 struct afs_info afsi;
2419 char *path;
2420 uint64_t bad_bits;
2421
2422 ret = get_afsi_of_row(row, &afsi);
2423 if (ret < 0) {
2424 para_printf(acad->pb, "cannot get afsi\n");
2425 return ret;
2426 }
2427 bad_bits = afsi.attributes & ~acad->att_mask;
2428 if (bad_bits == 0) /* OK */
2429 return 0;
2430 ret = get_audio_file_path_of_row(row, &path);
2431 if (ret < 0) {
2432 para_printf(acad->pb, "cannot get path\n");
2433 return ret;
2434 }
2435 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2436 bad_bits, path);
2437 /* return success to keep looping */
2438 return 1;
2439 }
2440
2441 /**
2442 * Iterate over all audio files and check the attribute bit mask.
2443 *
2444 * \param att_mask The mask of all valid attributes.
2445 * \param pb Used for reporting inconsistencies.
2446 *
2447 * This reads the attribute bit mask of each audio file from the afs info
2448 * structure stored in the audio file table and verifies that all set bits are
2449 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2450 * attribute table. Audio files for which this is not the case are reported via
2451 * \a pb.
2452 *
2453 * \return Standard. Inconsistencies are not regarded as errors.
2454 *
2455 * \sa \ref attribute_check_callback().
2456 */
2457 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2458 {
2459 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2460
2461 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2462 return audio_file_loop(&acad, check_atts_of_audio_file);
2463 }
2464
2465 /**
2466 * Close the audio file table.
2467 *
2468 * \param flags Usual flags that are passed to osl_close_table().
2469 *
2470 * \sa osl_close_table().
2471 */
2472 static void aft_close(void)
2473 {
2474 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2475 audio_file_table = NULL;
2476 }
2477
2478 /**
2479 * Open the audio file table.
2480 *
2481 * \param dir The database directory.
2482 *
2483 * \return Standard.
2484 *
2485 * \sa osl_open_table().
2486 */
2487 static int aft_open(const char *dir)
2488 {
2489 int ret;
2490
2491 audio_file_table_desc.dir = dir;
2492 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2493 if (ret >= 0) {
2494 unsigned num;
2495 osl_get_num_rows(audio_file_table, &num);
2496 PARA_INFO_LOG("audio file table contains %u files\n", num);
2497 return ret;
2498 }
2499 PARA_NOTICE_LOG("failed to open audio file table\n");
2500 audio_file_table = NULL;
2501 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2502 return 1;
2503 return ret;
2504 }
2505
2506 static int aft_create(const char *dir)
2507 {
2508 audio_file_table_desc.dir = dir;
2509 return osl(osl_create_table(&audio_file_table_desc));
2510 }
2511
2512 static int clear_attribute(struct osl_row *row, void *data)
2513 {
2514 struct rmatt_event_data *red = data;
2515 struct afs_info afsi;
2516 struct osl_object obj;
2517 int ret = get_afsi_object_of_row(row, &obj);
2518 uint64_t mask = ~(1ULL << red->bitnum);
2519
2520 if (ret < 0)
2521 return ret;
2522 ret = load_afsi(&afsi, &obj);
2523 if (ret < 0)
2524 return ret;
2525 afsi.attributes &= mask;
2526 save_afsi(&afsi, &obj);
2527 return 1;
2528 }
2529
2530 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2531 void *data)
2532 {
2533 int ret;
2534
2535 switch (event) {
2536 case ATTRIBUTE_REMOVE: {
2537 const struct rmatt_event_data *red = data;
2538 para_printf(pb, "clearing attribute %s (bit %u) from all "
2539 "entries in the audio file table\n", red->name,
2540 red->bitnum);
2541 return audio_file_loop(data, clear_attribute);
2542 } case AFSI_CHANGE: {
2543 struct afsi_change_event_data *aced = data;
2544 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2545 if (aced->aft_row != current_aft_row)
2546 return 0;
2547 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2548 if (ret < 0)
2549 return ret;
2550 status_item_ls_data.afsi.last_played = old_last_played;
2551 make_status_items();
2552 return 1;
2553 } case AFHI_CHANGE: {
2554 if (data != current_aft_row)
2555 return 0;
2556 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2557 if (ret < 0)
2558 return ret;
2559 make_status_items();
2560 return 1;
2561 } default:
2562 return 0;
2563 }
2564 }
2565
2566 /**
2567 * Initialize the audio file table.
2568 *
2569 * \param t Pointer to the structure to be initialized.
2570 */
2571 void aft_init(struct afs_table *t)
2572 {
2573 t->open = aft_open;
2574 t->close = aft_close;
2575 t->create = aft_create;
2576 t->event_handler = aft_event_handler;
2577 }