206be9e38630d3c8ebfe4ce8e07fc28de74073b9
[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 /*
297 * Produce a canonicalized absolute pathname.
298 *
299 * Returns one if the resolved path a directory, zero if it is a regular file,
300 * negative on errors.
301 */
302 static int verify_path(const char *orig_path, char **resolved_path)
303 {
304 int ret;
305 char *path = NULL;
306 struct stat statbuf;
307
308 if (*orig_path != '/') /* we only accept absolute paths */
309 goto fail;
310 path = realpath(orig_path, NULL);
311 if (!path)
312 goto fail;
313 if (stat(path, &statbuf) < 0)
314 goto fail;
315 if (S_ISREG(statbuf.st_mode))
316 ret = 0;
317 else if (S_ISDIR(statbuf.st_mode))
318 ret = 1;
319 else
320 goto fail;
321 *resolved_path = path;
322 return ret;
323 fail:
324 *resolved_path = NULL;
325 free(path);
326 return -E_BAD_PATH;
327 }
328
329 /** The on-disk layout of a afhi struct. */
330 enum afhi_offsets {
331 /** Where the number of seconds is stored. */
332 AFHI_SECONDS_TOTAL_OFFSET = 0,
333 /** Position of the bitrate. */
334 AFHI_BITRATE_OFFSET = 4,
335 /** Position of the frequency. */
336 AFHI_FREQUENCY_OFFSET = 8,
337 /** Was: Location of the audio file header. */
338 AFHI_UNUSED1_OFFSET = 12,
339 /* Length of the audio file header. Zero means: No header. */
340 AFHI_HEADER_LEN_OFFSET = 16,
341 /** The total number of chunks (4 bytes). */
342 CHUNKS_TOTAL_OFFSET = 20,
343 /** The length of the audio file header (4 bytes). */
344 HEADER_LEN_OFFSET = 24,
345 /** Was: The start of the audio file header (4 bytes). */
346 AFHI_UNUSED2_OFFSET = 28,
347 /** The seconds part of the chunk time (4 bytes). */
348 CHUNK_TV_TV_SEC_OFFSET = 32,
349 /** The microseconds part of the chunk time (4 bytes). */
350 CHUNK_TV_TV_USEC_OFFSET = 36,
351 /** Number of channels is stored here. (1 byte) */
352 AFHI_CHANNELS_OFFSET = 40,
353 /** The tag info position. */
354 AFHI_INFO_STRING_OFFSET = 41,
355 /** Minimal on-disk size of a valid afhi struct. */
356 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
357 };
358
359 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
360 {
361 if (!afhi)
362 return 0;
363 return MIN_AFHI_SIZE
364 + strlen(afhi->techinfo)
365 + strlen(afhi->tags.artist)
366 + strlen(afhi->tags.title)
367 + strlen(afhi->tags.year)
368 + strlen(afhi->tags.album)
369 + strlen(afhi->tags.comment);
370 }
371
372 static void save_afhi(struct afh_info *afhi, char *buf)
373 {
374 char *p;
375
376 if (!afhi)
377 return;
378 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
379 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
380 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
381 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
382 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
383 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
384 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
385 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
386 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
387 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
388 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
389 p = buf + AFHI_INFO_STRING_OFFSET;
390 /* The sprintf's below are OK as our caller made sure that buf is large enough */
391 p += sprintf(p, "%s", afhi->techinfo) + 1;
392 p += sprintf(p, "%s", afhi->tags.artist) + 1;
393 p += sprintf(p, "%s", afhi->tags.title) + 1;
394 p += sprintf(p, "%s", afhi->tags.year) + 1;
395 p += sprintf(p, "%s", afhi->tags.album) + 1;
396 sprintf(p, "%s", afhi->tags.comment);
397 }
398
399 static void load_afhi(const char *buf, struct afh_info *afhi)
400 {
401 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
402 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
403 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
404 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
405 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
406 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
407 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
408 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
409 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
410 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
411 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
412 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
413 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
414 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
415 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
416 }
417
418 static unsigned sizeof_chunk_table(struct afh_info *afhi)
419 {
420 if (!afhi)
421 return 0;
422 return 4 * (afhi->chunks_total + 1);
423 }
424
425 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
426 {
427 int i;
428 uint32_t max = 0, old = 0;
429
430 for (i = 0; i <= afhi->chunks_total; i++) {
431 uint32_t val = afhi->chunk_table[i];
432 write_u32(buf + 4 * i, val);
433 /*
434 * If the first chunk is the header, do not consider it for the
435 * calculation of the largest chunk size.
436 */
437 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
438 old = val;
439 continue;
440 }
441 max = PARA_MAX(max, val - old);
442 old = val;
443 }
444 return max;
445 }
446
447 static void load_chunk_table(struct afh_info *afhi, char *buf)
448 {
449 int i;
450
451 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
452 for (i = 0; i <= afhi->chunks_total; i++)
453 afhi->chunk_table[i] = read_u32(buf + 4 * i);
454 }
455
456 /**
457 * Get the row of the audio file table corresponding to the given path.
458 *
459 * \param path The full path of the audio file.
460 * \param row Result pointer.
461 *
462 * \return Standard.
463 */
464 int aft_get_row_of_path(const char *path, struct osl_row **row)
465 {
466 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
467
468 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
469 }
470
471 /**
472 * Get the row of the audio file table corresponding to the given hash value.
473 *
474 * \param hash The hash value of the desired audio file.
475 * \param row Result pointer.
476 *
477 * \return Standard.
478 */
479 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
480 {
481 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
482 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
483 }
484
485 /*
486 * Get the audio file selector info object of a row.
487 *
488 * \param row Pointer to a row in the audio file table.
489 * \param obj Result pointer.
490 *
491 * \return Standard.
492 */
493 static int get_afsi_object_of_row(const struct osl_row *row,
494 struct osl_object *obj)
495 {
496 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
497 }
498
499 /**
500 * Get the osl object holding the audio file selector info, given a path.
501 *
502 *
503 * \param path The full path of the audio file.
504 * \param obj Result pointer.
505 *
506 * \return Positive on success, negative on errors.
507 */
508 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
509 {
510 struct osl_row *row;
511 int ret = aft_get_row_of_path(path, &row);
512 if (ret < 0)
513 return ret;
514 return get_afsi_object_of_row(row, obj);
515 }
516
517 /**
518 * Get the audio file selector info, given a row of the audio file table.
519 *
520 * \param row Pointer to a row in the audio file table.
521 * \param afsi Result pointer.
522 *
523 * \return Positive on success, negative on errors.
524 */
525 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
526 {
527 struct osl_object obj;
528 int ret = get_afsi_object_of_row(row, &obj);
529 if (ret < 0)
530 return ret;
531 return load_afsi(afsi, &obj);
532 }
533
534 /*
535 * Get the audio file selector info, given the path of an audio table.
536 *
537 * \param path The full path of the audio file.
538 * \param afsi Result pointer.
539 *
540 * \return Standard.
541 */
542 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
543 {
544 struct osl_object obj;
545 int ret = get_afsi_object_of_path(path, &obj);
546 if (ret < 0)
547 return ret;
548 return load_afsi(afsi, &obj);
549 }
550
551 /**
552 * Get the path of an audio file, given a row of the audio file table.
553 *
554 * \param row Pointer to a row in the audio file table.
555 * \param path Result pointer.
556 *
557 * The result is a pointer to mmapped data. The caller must not attempt
558 * to free it.
559 *
560 * \return Standard.
561 */
562 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
563 {
564 struct osl_object path_obj;
565 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
566 &path_obj));
567 if (ret < 0)
568 return ret;
569 *path = path_obj.data;
570 return 1;
571 }
572
573 /**
574 * Get the object containing the hash value of an audio file, given a row.
575 *
576 * \param row Pointer to a row of the audio file table.
577 * \param obj Result pointer.
578 *
579 * \return The return value of the underlying call to osl_get_object().
580 *
581 * \sa get_hash_of_row().
582 */
583 static int get_hash_object_of_aft_row(const struct osl_row *row,
584 struct osl_object *obj)
585 {
586 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
587 }
588
589 /**
590 * Get the hash value of an audio file, given a row of the audio file table.
591 *
592 * \param row Pointer to a row of the audio file table.
593 * \param hash Result pointer.
594 *
595 * \a hash points to mapped data and must not be freed by the caller.
596 *
597 * \return The return value of the underlying call to
598 * get_hash_object_of_aft_row().
599 */
600 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
601 {
602 struct osl_object obj;
603 int ret = get_hash_object_of_aft_row(row, &obj);
604
605 if (ret < 0)
606 return ret;
607 *hash = obj.data;
608 return 1;
609 }
610
611 /**
612 * Get the audio format handler info, given a row of the audio file table.
613 *
614 * \param row Pointer to a row of the audio file table.
615 * \param afhi Result pointer.
616 *
617 * \return The return value of the underlying call to osl_get_object().
618 *
619 * \sa get_chunk_table_of_row().
620 */
621 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
622 {
623 struct osl_object obj;
624 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
625 &obj));
626 if (ret < 0)
627 return ret;
628 load_afhi(obj.data, afhi);
629 return 1;
630 }
631
632 /* returns shmid on success */
633 static int save_afd(struct audio_file_data *afd)
634 {
635 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
636 int shmid, ret = shm_new(size);
637 void *shm_afd;
638 char *buf;
639
640 if (ret < 0)
641 return ret;
642 shmid = ret;
643 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
644 if (ret < 0)
645 goto err;
646 buf = shm_afd;
647 buf += sizeof(*afd);
648 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
649 *(struct audio_file_data *)shm_afd = *afd;
650 shm_detach(shm_afd);
651 return shmid;
652 err:
653 shm_destroy(shmid);
654 return ret;
655 }
656
657 /**
658 * Extract a afd stored in a shared memory area.
659 *
660 * Attach the shared memory area given by \a shmid, load the audio file data
661 * stored therein and detach the area afterwards. Called by vss, after
662 * receiving a positive response to the request for the next audio file.
663 +
664 * \param shmid The identifier of the shared memory area containing the afd.
665 * \param afd Result pointer.
666 *
667 * \return Standard.
668 */
669 int load_afd(int shmid, struct audio_file_data *afd)
670 {
671 void *shm_afd;
672 int ret;
673
674 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
675 if (ret < 0)
676 return ret;
677 *afd = *(struct audio_file_data *)shm_afd;
678 load_chunk_table(&afd->afhi, shm_afd + sizeof(*afd));
679 shm_detach(shm_afd);
680 return 1;
681 }
682
683 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
684 time_t current_time, enum ls_listing_mode lm)
685 {
686 struct tm t;
687
688 if (!localtime_r((time_t *)seconds, &t))
689 return -E_LOCALTIME;
690 if (lm == LS_MODE_MBOX) {
691 if (!strftime(buf, size, "%c", &t))
692 return -E_STRFTIME;
693 return 1;
694 }
695 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
696 if (!strftime(buf, size, "%b %e %k:%M", &t))
697 return -E_STRFTIME;
698 return 1;
699 }
700 if (!strftime(buf, size, "%b %e %Y", &t))
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:%02u", 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:%02u", 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 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
752 if (ret < 0)
753 return ret;
754 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
755 if (ret < 0)
756 return ret;
757 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
758 free(att_text);
759 return ret;
760 }
761
762 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
763 {
764 char *lyrics_name;
765 int ret;
766
767 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
768 if (ret < 0)
769 return ret;
770 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
771 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
772 lyrics_name : "(none)");
773 }
774
775 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
776 {
777 char *image_name;
778 int ret;
779
780 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
781 if (ret < 0)
782 return ret;
783 img_get_name_by_id(afsi->image_id, &image_name);
784 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
785 image_name : "(none)");
786 }
787
788 static int write_filename_items(struct para_buffer *b, const char *path,
789 unsigned flags)
790 {
791 char *val;
792 int ret;
793
794 if (!(flags & LS_FLAG_FULL_PATH))
795 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
796 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
797 if (ret < 0)
798 return ret;
799 val = para_basename(path);
800 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
801 if (ret < 0)
802 return ret;
803 val = para_dirname(path);
804 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
805 free(val);
806 return ret;
807 }
808
809 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
810 {
811 struct osl_object chunk_table_obj;
812 struct osl_row *aft_row;
813 int ret, i;
814 char *buf;
815
816 ret = aft_get_row_of_hash(d->hash, &aft_row);
817 if (ret < 0)
818 return ret;
819 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
820 AFTCOL_CHUNKS, &chunk_table_obj));
821 if (ret < 0)
822 return ret;
823 para_printf(b, "%s\n"
824 "chunk_time: %lu:%lu\nchunk_offsets: ",
825 d->path,
826 (long unsigned) d->afhi.chunk_tv.tv_sec,
827 (long unsigned) d->afhi.chunk_tv.tv_usec
828 );
829 buf = chunk_table_obj.data;
830 for (i = 0; i <= d->afhi.chunks_total; i++)
831 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
832 para_printf(b, "\n");
833 ret = 1;
834 osl_close_disk_object(&chunk_table_obj);
835 return ret;
836 }
837
838 static int write_score(struct para_buffer *b, struct ls_data *d,
839 struct ls_options *opts)
840 {
841 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
842 return 0;
843 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
844 }
845
846 static int print_list_item(struct ls_data *d, struct ls_options *opts,
847 struct para_buffer *b, time_t current_time)
848 {
849 int ret;
850 char att_buf[65];
851 char last_played_time[30];
852 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
853 struct afs_info *afsi = &d->afsi;
854 struct afh_info *afhi = &d->afhi;
855 char asc_hash[2 * HASH_SIZE + 1];
856
857 if (opts->mode == LS_MODE_SHORT) {
858 para_printf(b, "%s\n", d->path);
859 ret = 1;
860 goto out;
861 }
862 if (opts->mode == LS_MODE_CHUNKS) {
863 ret = print_chunk_table(d, b);
864 goto out;
865 }
866 get_attribute_bitmap(&afsi->attributes, att_buf);
867 if (opts->flags & LS_FLAG_UNIXDATE)
868 sprintf(last_played_time, "%llu",
869 (long long unsigned)afsi->last_played);
870 else {
871 ret = get_local_time(&afsi->last_played, last_played_time,
872 sizeof(last_played_time), current_time, opts->mode);
873 if (ret < 0)
874 goto out;
875 }
876 get_duration_buf(afhi->seconds_total, duration_buf, opts);
877 if (opts->mode == LS_MODE_LONG) {
878 struct ls_widths *w = &opts->widths;
879 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
880 para_printf(b, "%*li ", opts->widths.score_width,
881 d->score);
882 }
883 para_printf(b,
884 "%s " /* attributes */
885 "%*u " /* amp */
886 "%*d " /* image_id */
887 "%*d " /* lyrics_id */
888 "%*d " /* bitrate */
889 "%*s " /* audio format */
890 "%*d " /* frequency */
891 "%d " /* channels */
892 "%s " /* duration */
893 "%*d " /* num_played */
894 "%s " /* last_played */
895 "%s\n", /* path */
896 att_buf,
897 w->amp_width, afsi->amp,
898 w->image_id_width, afsi->image_id,
899 w->lyrics_id_width, afsi->lyrics_id,
900 w->bitrate_width, afhi->bitrate,
901 w->audio_format_width,
902 audio_format_name(afsi->audio_format_id),
903 w->frequency_width, afhi->frequency,
904 afhi->channels,
905 duration_buf,
906 w->num_played_width, afsi->num_played,
907 last_played_time,
908 d->path
909 );
910 ret = 1;
911 goto out;
912 }
913 if (opts->mode == LS_MODE_MBOX) {
914 const char *bn = para_basename(d->path);
915 para_printf(b,
916 "From foo@localhost %s\n"
917 "Received: from\nTo: bar\nFrom: a\n"
918 "Subject: %s\n\n",
919 last_played_time,
920 bn? bn : "?");
921 }
922 ret = write_filename_items(b, d->path, opts->flags);
923 if (ret < 0)
924 goto out;
925 ret = write_score(b, d, opts);
926 if (ret < 0)
927 goto out;
928 ret = write_attribute_items(b, att_buf, afsi);
929 if (ret < 0)
930 goto out;
931 ret = write_image_items(b, afsi);
932 if (ret < 0)
933 goto out;
934 ret = write_lyrics_items(b, afsi);
935 if (ret < 0)
936 goto out;
937 hash_to_asc(d->hash, asc_hash);
938 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
939 if (ret < 0)
940 goto out;
941 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
942 if (ret < 0)
943 goto out;
944 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
945 audio_format_name(afsi->audio_format_id));
946 if (ret < 0)
947 goto out;
948 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
949 if (ret < 0)
950 goto out;
951 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
952 if (ret < 0)
953 goto out;
954 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
955 if (ret < 0)
956 goto out;
957 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
958 afhi->seconds_total);
959 if (ret < 0)
960 goto out;
961 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
965 if (ret < 0)
966 goto out;
967 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
968 if (ret < 0)
969 goto out;
970 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
971 tv2ms(&afhi->chunk_tv));
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
975 afhi->chunks_total);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
979 if (ret < 0)
980 goto out;
981 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
982 if (ret < 0)
983 goto out;
984 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
985 if (ret < 0)
986 goto out;
987 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
988 if (ret < 0)
989 goto out;
990 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
991 if (ret < 0)
992 goto out;
993 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
994 if (ret < 0)
995 goto out;
996 if (opts->mode == LS_MODE_MBOX) {
997 struct osl_object lyrics_def;
998 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
999 if (lyrics_def.data) {
1000 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1001 (char *)lyrics_def.data);
1002 osl_close_disk_object(&lyrics_def);
1003 }
1004 }
1005 out:
1006 return ret;
1007 }
1008
1009 static struct ls_data status_item_ls_data;
1010 static struct osl_row *current_aft_row;
1011
1012 static void make_inode_status_items(struct para_buffer *pb)
1013 {
1014 struct stat statbuf = {.st_size = 0};
1015 char *path, mtime_str[30] = "\0";
1016 struct tm mtime_tm;
1017 int ret;
1018
1019 ret = get_audio_file_path_of_row(current_aft_row, &path);
1020 if (ret < 0)
1021 goto out;
1022 ret = stat(path, &statbuf);
1023 if (ret < 0)
1024 goto out;
1025 localtime_r(&statbuf.st_mtime, &mtime_tm);
1026 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
1027 assert(ret > 0); /* number of bytes placed in mtime_str */
1028 out:
1029 /* We don't care too much about errors here */
1030 (void)WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
1031 (void)WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
1032 }
1033
1034 static int make_status_items(void)
1035 {
1036 struct ls_options opts = {
1037 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1038 .mode = LS_MODE_VERBOSE,
1039 };
1040 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1041 time_t current_time;
1042 int ret;
1043
1044 time(&current_time);
1045 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1046 if (ret < 0)
1047 return ret;
1048 make_inode_status_items(&pb);
1049 free(status_items);
1050 status_items = pb.buf;
1051 memset(&pb, 0, sizeof(pb));
1052 pb.max_size = shm_get_shmmax() - 1;
1053 pb.flags = PBF_SIZE_PREFIX;
1054 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1055 if (ret < 0) {
1056 free(status_items);
1057 status_items = NULL;
1058 return ret;
1059 }
1060 make_inode_status_items(&pb);
1061 free(parser_friendly_status_items);
1062 parser_friendly_status_items = pb.buf;
1063 return 1;
1064 }
1065
1066 /**
1067 * Open the audio file with highest score and set up an afd structure.
1068 *
1069 * \param afd Result pointer.
1070 *
1071 * On success, the numplayed field of the audio file selector info is increased
1072 * and the lastplayed time is set to the current time. Finally, the score of
1073 * the audio file is updated.
1074 *
1075 * \return Positive shmid on success, negative on errors.
1076 */
1077 int open_and_update_audio_file(struct audio_file_data *afd)
1078 {
1079 unsigned char file_hash[HASH_SIZE];
1080 struct osl_object afsi_obj;
1081 struct afs_info new_afsi;
1082 int ret;
1083 struct afsi_change_event_data aced;
1084 struct osl_object map, chunk_table_obj;
1085 struct ls_data *d = &status_item_ls_data;
1086 again:
1087 ret = score_get_best(&current_aft_row, &d->score);
1088 if (ret < 0)
1089 return ret;
1090 ret = get_hash_of_row(current_aft_row, &d->hash);
1091 if (ret < 0)
1092 return ret;
1093 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1094 if (ret < 0)
1095 return ret;
1096 PARA_NOTICE_LOG("%s\n", d->path);
1097 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1098 if (ret < 0)
1099 return ret;
1100 ret = load_afsi(&d->afsi, &afsi_obj);
1101 if (ret < 0)
1102 return ret;
1103 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1104 if (ret < 0)
1105 return ret;
1106 d->afhi = afd->afhi;
1107 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1108 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1109 AFTCOL_CHUNKS, &chunk_table_obj));
1110 if (ret < 0)
1111 return ret;
1112 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1113 if (ret < 0)
1114 goto out;
1115 hash_function(map.data, map.size, file_hash);
1116 ret = hash_compare(file_hash, d->hash);
1117 para_munmap(map.data, map.size);
1118 if (ret) {
1119 ret = -E_HASH_MISMATCH;
1120 goto out;
1121 }
1122 new_afsi = d->afsi;
1123 new_afsi.num_played++;
1124 new_afsi.last_played = time(NULL);
1125 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1126
1127 afd->audio_format_id = d->afsi.audio_format_id;
1128 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1129 aced.aft_row = current_aft_row;
1130 aced.old_afsi = &d->afsi;
1131 /*
1132 * No need to update the status items as the AFSI_CHANGE event will
1133 * recreate them.
1134 */
1135 afs_event(AFSI_CHANGE, NULL, &aced);
1136 ret = save_afd(afd);
1137 out:
1138 free(afd->afhi.chunk_table);
1139 osl_close_disk_object(&chunk_table_obj);
1140 if (ret < 0) {
1141 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1142 ret = score_delete(current_aft_row);
1143 if (ret >= 0)
1144 goto again;
1145 }
1146 return ret;
1147 }
1148
1149 static int ls_audio_format_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.audio_format_id, d2->afsi.audio_format_id);
1153 }
1154
1155 static int ls_duration_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->afhi.seconds_total, d2->afhi.seconds_total);
1159 }
1160
1161 static int ls_bitrate_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->afhi.bitrate, d2->afhi.bitrate);
1165 }
1166
1167 static int ls_lyrics_id_compare(const void *a, const void *b)
1168 {
1169 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1170 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1171 }
1172
1173 static int ls_image_id_compare(const void *a, const void *b)
1174 {
1175 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1176 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1177 }
1178
1179 static int ls_channels_compare(const void *a, const void *b)
1180 {
1181 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1182 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1183 }
1184
1185 static int ls_frequency_compare(const void *a, const void *b)
1186 {
1187 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1188 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1189 }
1190
1191 static int ls_num_played_compare(const void *a, const void *b)
1192 {
1193 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1194 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1195 }
1196
1197 static int ls_last_played_compare(const void *a, const void *b)
1198 {
1199 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1200 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1201 }
1202
1203 static int ls_score_compare(const void *a, const void *b)
1204 {
1205 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1206 return NUM_COMPARE(d1->score, d2->score);
1207 }
1208
1209 static int ls_path_compare(const void *a, const void *b)
1210 {
1211 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1212 return strcmp(d1->path, d2->path);
1213 }
1214
1215 static int sort_matching_paths(struct ls_options *options)
1216 {
1217 size_t nmemb = options->num_matching_paths;
1218 size_t size = sizeof(*options->data_ptr);
1219 int (*compar)(const void *, const void *);
1220 int i;
1221
1222 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1223 for (i = 0; i < nmemb; i++)
1224 options->data_ptr[i] = options->data + i;
1225
1226 /* In these cases the array is already sorted */
1227 if (options->sorting == LS_SORT_BY_PATH
1228 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1229 && (options->flags & LS_FLAG_FULL_PATH))
1230 return 1;
1231 if (options->sorting == LS_SORT_BY_SCORE &&
1232 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1233 return 1;
1234
1235 switch (options->sorting) {
1236 case LS_SORT_BY_PATH:
1237 compar = ls_path_compare; break;
1238 case LS_SORT_BY_SCORE:
1239 compar = ls_score_compare; break;
1240 case LS_SORT_BY_LAST_PLAYED:
1241 compar = ls_last_played_compare; break;
1242 case LS_SORT_BY_NUM_PLAYED:
1243 compar = ls_num_played_compare; break;
1244 case LS_SORT_BY_FREQUENCY:
1245 compar = ls_frequency_compare; break;
1246 case LS_SORT_BY_CHANNELS:
1247 compar = ls_channels_compare; break;
1248 case LS_SORT_BY_IMAGE_ID:
1249 compar = ls_image_id_compare; break;
1250 case LS_SORT_BY_LYRICS_ID:
1251 compar = ls_lyrics_id_compare; break;
1252 case LS_SORT_BY_BITRATE:
1253 compar = ls_bitrate_compare; break;
1254 case LS_SORT_BY_DURATION:
1255 compar = ls_duration_compare; break;
1256 case LS_SORT_BY_AUDIO_FORMAT:
1257 compar = ls_audio_format_compare; break;
1258 default:
1259 return -E_BAD_SORT;
1260 }
1261 qsort(options->data_ptr, nmemb, size, compar);
1262 return 1;
1263 }
1264
1265 /* row is either an aft_row or a row of the score table */
1266 /* TODO: Only compute widths if we need them */
1267 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1268 {
1269 int ret, i;
1270 struct ls_options *options = ls_opts;
1271 struct ls_data *d;
1272 struct ls_widths *w;
1273 unsigned short num_digits;
1274 unsigned tmp;
1275 struct osl_row *aft_row;
1276 long score;
1277 char *path;
1278
1279 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1280 ret = get_score_and_aft_row(row, &score, &aft_row);
1281 if (ret < 0)
1282 return ret;
1283 } else {
1284 aft_row = row;
1285 score = 0;
1286 }
1287 ret = get_audio_file_path_of_row(aft_row, &path);
1288 if (ret < 0)
1289 return ret;
1290 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1291 char *p = strrchr(path, '/');
1292 if (p)
1293 path = p + 1;
1294 }
1295 if (options->num_patterns) {
1296 for (i = 0; i < options->num_patterns; i++) {
1297 ret = fnmatch(options->patterns[i], path, 0);
1298 if (!ret)
1299 break;
1300 if (ret == FNM_NOMATCH)
1301 continue;
1302 return -E_FNMATCH;
1303 }
1304 if (i >= options->num_patterns) /* no match */
1305 return 1;
1306 }
1307 tmp = options->num_matching_paths++;
1308 if (options->num_matching_paths > options->array_size) {
1309 options->array_size++;
1310 options->array_size *= 2;
1311 options->data = para_realloc(options->data, options->array_size
1312 * sizeof(*options->data));
1313 }
1314 d = options->data + tmp;
1315 ret = get_afsi_of_row(aft_row, &d->afsi);
1316 if (ret < 0)
1317 return ret;
1318 ret = get_afhi_of_row(aft_row, &d->afhi);
1319 if (ret < 0)
1320 return ret;
1321 d->path = path;
1322 ret = get_hash_of_row(aft_row, &d->hash);
1323 if (ret < 0)
1324 goto err;
1325 w = &options->widths;
1326 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1327 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1328 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1329 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1330 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1331 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1332 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1333 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1334 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1335 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1336 /* get the number of chars to print this amount of time */
1337 num_digits = get_duration_width(d->afhi.seconds_total);
1338 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1339 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1340 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1341 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1342 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1343 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1344 GET_NUM_DIGITS(score, &num_digits);
1345 num_digits++; /* add one for the sign (space or "-") */
1346 w->score_width = PARA_MAX(w->score_width, num_digits);
1347 d->score = score;
1348 }
1349 return 1;
1350 err:
1351 return ret;
1352 }
1353
1354 static void com_ls_callback(int fd, const struct osl_object *query)
1355 {
1356 struct ls_options *opts = query->data;
1357 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1358 struct para_buffer b = {
1359 .max_size = shm_get_shmmax(),
1360 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1361 .max_size_handler = afs_max_size_handler,
1362 .private_data = &(struct afs_max_size_handler_data) {
1363 .fd = fd,
1364 .band = SBD_OUTPUT
1365 }
1366 };
1367 int i = 0, ret;
1368 time_t current_time;
1369
1370 if (opts->num_patterns) {
1371 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1372 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1373 opts->patterns[i] = p;
1374 p += strlen(p) + 1;
1375 }
1376 } else
1377 opts->patterns = NULL;
1378 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1379 ret = admissible_file_loop(opts, prepare_ls_row);
1380 else
1381 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1382 prepare_ls_row));
1383 if (ret < 0)
1384 goto out;
1385 if (opts->num_matching_paths == 0) {
1386 if (opts->num_patterns > 0)
1387 para_printf(&b, "no matches\n");
1388 goto out;
1389 }
1390 ret = sort_matching_paths(opts);
1391 if (ret < 0)
1392 goto out;
1393 time(&current_time);
1394 if (opts->flags & LS_FLAG_REVERSE)
1395 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1396 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1397 if (ret < 0)
1398 goto out;
1399 }
1400 else
1401 for (i = 0; i < opts->num_matching_paths; i++) {
1402 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1403 if (ret < 0)
1404 goto out;
1405 }
1406 out:
1407 if (b.offset)
1408 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1409 free(b.buf);
1410 free(opts->data);
1411 free(opts->data_ptr);
1412 free(opts->patterns);
1413 }
1414
1415 /*
1416 * TODO: flags -h (sort by hash)
1417 */
1418 int com_ls(struct command_context *cc)
1419 {
1420 int i, ret;
1421 unsigned flags = 0;
1422 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1423 enum ls_listing_mode mode = LS_MODE_SHORT;
1424 struct ls_options opts = {.patterns = NULL};
1425 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1426
1427 for (i = 1; i < cc->argc; i++) {
1428 const char *arg = cc->argv[i];
1429 if (arg[0] != '-')
1430 break;
1431 if (!strcmp(arg, "--")) {
1432 i++;
1433 break;
1434 }
1435 if (!strncmp(arg, "-l", 2)) {
1436 if (!*(arg + 2)) {
1437 mode = LS_MODE_LONG;
1438 continue;
1439 }
1440 if (*(arg + 3))
1441 return -E_AFT_SYNTAX;
1442 switch(*(arg + 2)) {
1443 case 's':
1444 mode = LS_MODE_SHORT;
1445 continue;
1446 case 'l':
1447 mode = LS_MODE_LONG;
1448 continue;
1449 case 'v':
1450 mode = LS_MODE_VERBOSE;
1451 continue;
1452 case 'm':
1453 mode = LS_MODE_MBOX;
1454 continue;
1455 case 'c':
1456 mode = LS_MODE_CHUNKS;
1457 continue;
1458 case 'p':
1459 mode = LS_MODE_PARSER;
1460 continue;
1461 default:
1462 return -E_AFT_SYNTAX;
1463 }
1464 }
1465 if (!strcmp(arg, "-p")) {
1466 flags |= LS_FLAG_FULL_PATH;
1467 continue;
1468 }
1469 if (!strcmp(arg, "-a")) {
1470 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1471 continue;
1472 }
1473 if (!strcmp(arg, "-r")) {
1474 flags |= LS_FLAG_REVERSE;
1475 continue;
1476 }
1477 if (!strcmp(arg, "-d")) {
1478 flags |= LS_FLAG_UNIXDATE;
1479 continue;
1480 }
1481 if (!strncmp(arg, "-s", 2)) {
1482 if (!*(arg + 2) || *(arg + 3))
1483 return -E_AFT_SYNTAX;
1484 switch(*(arg + 2)) {
1485 case 'p':
1486 sort = LS_SORT_BY_PATH;
1487 continue;
1488 case 's': /* -ss implies -a */
1489 sort = LS_SORT_BY_SCORE;
1490 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1491 continue;
1492 case 'l':
1493 sort = LS_SORT_BY_LAST_PLAYED;
1494 continue;
1495 case 'n':
1496 sort = LS_SORT_BY_NUM_PLAYED;
1497 continue;
1498 case 'f':
1499 sort = LS_SORT_BY_FREQUENCY;
1500 continue;
1501 case 'c':
1502 sort = LS_SORT_BY_CHANNELS;
1503 continue;
1504 case 'i':
1505 sort = LS_SORT_BY_IMAGE_ID;
1506 continue;
1507 case 'y':
1508 sort = LS_SORT_BY_LYRICS_ID;
1509 continue;
1510 case 'b':
1511 sort = LS_SORT_BY_BITRATE;
1512 continue;
1513 case 'd':
1514 sort = LS_SORT_BY_DURATION;
1515 continue;
1516 case 'a':
1517 sort = LS_SORT_BY_AUDIO_FORMAT;
1518 continue;
1519 default:
1520 return -E_AFT_SYNTAX;
1521 }
1522 }
1523 return -E_AFT_SYNTAX;
1524 }
1525 opts.flags = flags;
1526 opts.sorting = sort;
1527 opts.mode = mode;
1528 opts.num_patterns = cc->argc - i;
1529 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1530 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1531 return ret;
1532 }
1533
1534 /**
1535 * Call the given function for each file in the audio file table.
1536 *
1537 * \param private_data An arbitrary data pointer, passed to \a func.
1538 * \param func The custom function to be called.
1539 *
1540 * \return Standard.
1541 */
1542 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1543 {
1544 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1545 func));
1546 }
1547
1548 static struct osl_row *find_hash_sister(unsigned char *hash)
1549 {
1550 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1551 struct osl_row *row;
1552
1553 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1554 return row;
1555 }
1556
1557 /** The format of the data stored by save_audio_file_data(). */
1558 enum com_add_buffer_offsets {
1559 /** afhi (if present) starts here. */
1560 CAB_AFHI_OFFSET_POS = 0,
1561 /** Start of the chunk table (if present). */
1562 CAB_CHUNKS_OFFSET_POS = 2,
1563 /** Audio format id. */
1564 CAB_AUDIO_FORMAT_OFFSET = 4,
1565 /** Flags given to the add command. */
1566 CAB_FLAGS_OFFSET = 5,
1567 /** The hash of the audio file being added. */
1568 CAB_HASH_OFFSET = 9,
1569 /** Start of the path of the audio file. */
1570 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1571 };
1572
1573 /*
1574 * Store the given data to a single buffer. Doesn't need the audio file selector
1575 * info struct as the server knows it as well.
1576 *
1577 * It's OK to call this with afhi == NULL. In this case, the audio format
1578 * handler info won't be stored in the buffer.
1579 */
1580 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1581 struct afh_info *afhi, uint32_t flags,
1582 uint8_t audio_format_num, struct osl_object *obj)
1583 {
1584 size_t path_len = strlen(path) + 1;
1585 size_t afhi_size = sizeof_afhi_buf(afhi);
1586 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1587 + sizeof_chunk_table(afhi);
1588 char *buf = para_malloc(size);
1589 uint16_t pos;
1590
1591 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1592 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1593
1594 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1595 strcpy(buf + CAB_PATH_OFFSET, path);
1596
1597 pos = CAB_PATH_OFFSET + path_len;
1598 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1599 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1600 pos + afhi_size - 1);
1601 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1602 save_afhi(afhi, buf + pos);
1603
1604 pos += afhi_size;
1605 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1606 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1607 if (afhi)
1608 save_chunk_table(afhi, buf + pos);
1609 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1610 obj->data = buf;
1611 obj->size = size;
1612 }
1613
1614 /*
1615
1616 Overview of the add command.
1617
1618 Input: What was passed to the callback by the command handler.
1619 ~~~~~~
1620 HS: Hash sister. Whether an audio file with identical hash
1621 already exists in the osl database.
1622
1623 PB: Path brother. Whether a file with the given path exists
1624 in the table.
1625
1626 F: Force flag given. Whether add was called with -f.
1627
1628 output: Action performed by the callback.
1629 ~~~~~~~
1630 AFHI: Whether afhi and chunk table are computed and sent.
1631 ACTION: Table modifications to be done by the callback.
1632
1633 +----+----+---+------+---------------------------------------------------+
1634 | HS | PB | F | AFHI | ACTION
1635 +----+----+---+------+---------------------------------------------------+
1636 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1637 | | update path, keep afsi
1638 +----+----+---+------+---------------------------------------------------+
1639 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1640 | | otherwise: remove PB, HS: update path, keep afhi,
1641 | | afsi.
1642 +----+----+---+------+---------------------------------------------------+
1643 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1644 | | HS, keep afsi
1645 +----+----+---+------+---------------------------------------------------+
1646 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1647 +----+----+---+------+---------------------------------------------------+
1648 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1649 | | (force has no effect)
1650 +----+----+---+------+---------------------------------------------------+
1651 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1652 +----+----+---+------+---------------------------------------------------+
1653 | N | N | Y | Y | (new file) create new entry (force has no effect)
1654 +----+----+---+------+---------------------------------------------------+
1655 | N | N | N | Y | (new file) create new entry
1656 +----+----+---+------+---------------------------------------------------+
1657
1658 Notes:
1659
1660 afhi <=> force or no HS
1661 F => AFHI
1662
1663 */
1664
1665 /** Flags passed to the add command. */
1666 enum com_add_flags {
1667 /** Skip paths that exist already. */
1668 ADD_FLAG_LAZY = 1,
1669 /** Force adding. */
1670 ADD_FLAG_FORCE = 2,
1671 /** Print what is being done. */
1672 ADD_FLAG_VERBOSE = 4,
1673 /** Try to add files with unknown suffixes. */
1674 ADD_FLAG_ALL = 8,
1675 };
1676
1677 static void com_add_callback(int fd, const struct osl_object *query)
1678 {
1679 char *buf = query->data, *path;
1680 struct osl_row *pb, *aft_row;
1681 struct osl_row *hs;
1682 struct osl_object objs[NUM_AFT_COLUMNS];
1683 unsigned char *hash;
1684 char asc[2 * HASH_SIZE + 1];
1685 int ret;
1686 char afsi_buf[AFSI_SIZE];
1687 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1688 struct afs_info default_afsi = {.last_played = 0};
1689 struct para_buffer msg = {
1690 .max_size = shm_get_shmmax(),
1691 .max_size_handler = afs_max_size_handler,
1692 .private_data = &(struct afs_max_size_handler_data) {
1693 .fd = fd,
1694 .band = SBD_OUTPUT
1695 }
1696 };
1697 uint16_t afhi_offset, chunks_offset;
1698
1699 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1700 hash_to_asc(hash, asc);
1701 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1702 objs[AFTCOL_HASH].size = HASH_SIZE;
1703
1704 path = buf + CAB_PATH_OFFSET;
1705 objs[AFTCOL_PATH].data = path;
1706 objs[AFTCOL_PATH].size = strlen(path) + 1;
1707
1708 PARA_INFO_LOG("request to add %s\n", path);
1709 hs = find_hash_sister(hash);
1710 ret = aft_get_row_of_path(path, &pb);
1711 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1712 goto out;
1713 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1714 if (flags & ADD_FLAG_VERBOSE)
1715 para_printf(&msg, "ignoring duplicate\n");
1716 ret = 1;
1717 goto out;
1718 }
1719 if (hs && hs != pb) {
1720 struct osl_object obj;
1721 if (pb) { /* hs trumps pb, remove pb */
1722 if (flags & ADD_FLAG_VERBOSE)
1723 para_printf(&msg, "removing %s\n", path);
1724 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1725 ret = osl(osl_del_row(audio_file_table, pb));
1726 if (ret < 0)
1727 goto out;
1728 pb = NULL;
1729 }
1730 /* file rename, update hs' path */
1731 if (flags & ADD_FLAG_VERBOSE) {
1732 ret = osl(osl_get_object(audio_file_table, hs,
1733 AFTCOL_PATH, &obj));
1734 if (ret < 0)
1735 goto out;
1736 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1737 }
1738 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1739 &objs[AFTCOL_PATH]));
1740 if (ret < 0)
1741 goto out;
1742 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1743 if (!(flags & ADD_FLAG_FORCE))
1744 goto out;
1745 }
1746 /* no hs or force mode, child must have sent afhi */
1747 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1748 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1749
1750 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1751 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1752 ret = -E_NO_AFHI;
1753 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1754 goto out;
1755 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1756 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1757 if (pb && !hs) { /* update pb's hash */
1758 char old_asc[2 * HASH_SIZE + 1];
1759 unsigned char *old_hash;
1760 ret = get_hash_of_row(pb, &old_hash);
1761 if (ret < 0)
1762 goto out;
1763 hash_to_asc(old_hash, old_asc);
1764 if (flags & ADD_FLAG_VERBOSE)
1765 para_printf(&msg, "file change: %s -> %s\n", old_asc,
1766 asc);
1767 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1768 &objs[AFTCOL_HASH]);
1769 if (ret < 0)
1770 goto out;
1771 }
1772 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1773 struct osl_row *row = pb? pb : hs;
1774 /* update afhi and chunk_table */
1775 if (flags & ADD_FLAG_VERBOSE)
1776 para_printf(&msg, "updating afhi and chunk table\n");
1777 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1778 &objs[AFTCOL_AFHI]));
1779 if (ret < 0)
1780 goto out;
1781 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1782 &objs[AFTCOL_CHUNKS]));
1783 if (ret < 0)
1784 goto out;
1785 afs_event(AFHI_CHANGE, &msg, row);
1786 goto out;
1787 }
1788 /* new entry, use default afsi */
1789 if (flags & ADD_FLAG_VERBOSE)
1790 para_printf(&msg, "new file\n");
1791 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1792 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1793
1794 objs[AFTCOL_AFSI].data = &afsi_buf;
1795 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1796 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1797 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1798 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1799 out:
1800 if (ret < 0)
1801 para_printf(&msg, "%s\n", para_strerror(-ret));
1802 if (msg.offset)
1803 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1804 free(msg.buf);
1805 }
1806
1807 /** Used by com_add(). */
1808 struct private_add_data {
1809 /** The pointer passed to the original command handler. */
1810 struct command_context *cc;
1811 /** The given add flags. */
1812 uint32_t flags;
1813 };
1814
1815 static void path_brother_callback(int fd, const struct osl_object *query)
1816 {
1817 char *path = query->data;
1818 struct osl_row *path_brother;
1819 int ret = aft_get_row_of_path(path, &path_brother);
1820 if (ret < 0)
1821 return;
1822 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1823 sizeof(path_brother));
1824 }
1825
1826 static void hash_sister_callback(int fd, const struct osl_object *query)
1827 {
1828 unsigned char *hash = query->data;
1829 struct osl_row *hash_sister;
1830
1831 hash_sister = find_hash_sister(hash);
1832 if (!hash_sister)
1833 return;
1834 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1835 sizeof(hash_sister));
1836 }
1837
1838 static int get_row_pointer_from_result(struct osl_object *result,
1839 __a_unused uint8_t band, void *private)
1840 {
1841 struct osl_row **row = private;
1842 *row = *(struct osl_row **)(result->data);
1843 return 1;
1844 }
1845
1846 static int add_one_audio_file(const char *path, void *private_data)
1847 {
1848 int ret, send_ret = 1, fd;
1849 uint8_t format_num = -1;
1850 struct private_add_data *pad = private_data;
1851 struct afh_info afhi, *afhi_ptr = NULL;
1852 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1853 struct osl_object map, obj = {.data = NULL}, query;
1854 unsigned char hash[HASH_SIZE];
1855
1856 ret = guess_audio_format(path);
1857 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1858 ret = 0;
1859 goto out_free;
1860 }
1861 query.data = (char *)path;
1862 query.size = strlen(path) + 1;
1863 ret = send_callback_request(path_brother_callback, &query,
1864 get_row_pointer_from_result, &pb);
1865 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1866 goto out_free;
1867 ret = 1;
1868 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1869 if (pad->flags & ADD_FLAG_VERBOSE)
1870 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1871 "lazy-ignore: %s\n", path);
1872 goto out_free;
1873 }
1874 /* We still want to add this file. Compute its hash. */
1875 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1876 if (ret < 0)
1877 goto out_free;
1878 hash_function(map.data, map.size, hash);
1879
1880 /* Check whether the database contains a file with the same hash. */
1881 query.data = hash;
1882 query.size = HASH_SIZE;
1883 ret = send_callback_request(hash_sister_callback, &query,
1884 get_row_pointer_from_result, &hs);
1885 if (ret < 0)
1886 goto out_unmap;
1887 /* Return success if we already know this file. */
1888 ret = 1;
1889 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1890 if (pad->flags & ADD_FLAG_VERBOSE)
1891 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1892 "%s exists, not forcing update\n", path);
1893 goto out_unmap;
1894 }
1895 /*
1896 * We won't recalculate the audio format info and the chunk table if
1897 * there is a hash sister and FORCE was not given.
1898 */
1899 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1900 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1901 if (ret < 0)
1902 goto out_unmap;
1903 format_num = ret;
1904 afhi_ptr = &afhi;
1905 }
1906 munmap(map.data, map.size);
1907 close(fd);
1908 if (pad->flags & ADD_FLAG_VERBOSE) {
1909 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1910 "adding %s\n", path);
1911 if (send_ret < 0)
1912 goto out_free;
1913 }
1914 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1915 /* Ask afs to consider this entry for adding. */
1916 ret = send_callback_request(com_add_callback, &obj,
1917 afs_cb_result_handler, pad->cc);
1918 goto out_free;
1919
1920 out_unmap:
1921 close(fd);
1922 munmap(map.data, map.size);
1923 out_free:
1924 if (ret < 0 && send_ret >= 0)
1925 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1926 "failed to add %s (%s)\n", path, para_strerror(-ret));
1927 free(obj.data);
1928 clear_afhi(afhi_ptr);
1929 /* Stop adding files only on send errors. */
1930 return send_ret;
1931 }
1932
1933 int com_add(struct command_context *cc)
1934 {
1935 int i, ret;
1936 struct private_add_data pad = {.cc = cc, .flags = 0};
1937
1938 for (i = 1; i < cc->argc; i++) {
1939 const char *arg = cc->argv[i];
1940 if (arg[0] != '-')
1941 break;
1942 if (!strcmp(arg, "--")) {
1943 i++;
1944 break;
1945 }
1946 if (!strcmp(arg, "-a")) {
1947 pad.flags |= ADD_FLAG_ALL;
1948 continue;
1949 }
1950 if (!strcmp(arg, "-l")) {
1951 pad.flags |= ADD_FLAG_LAZY;
1952 continue;
1953 }
1954 if (!strcmp(arg, "-f")) {
1955 pad.flags |= ADD_FLAG_FORCE;
1956 continue;
1957 }
1958 if (!strcmp(arg, "-v")) {
1959 pad.flags |= ADD_FLAG_VERBOSE;
1960 continue;
1961 }
1962 }
1963 if (cc->argc <= i)
1964 return -E_AFT_SYNTAX;
1965 for (; i < cc->argc; i++) {
1966 char *path;
1967 ret = verify_path(cc->argv[i], &path);
1968 if (ret < 0) {
1969 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1970 cc->argv[i], para_strerror(-ret));
1971 if (ret < 0)
1972 return ret;
1973 continue;
1974 }
1975 if (ret == 1) /* directory */
1976 ret = for_each_file_in_dir(path, add_one_audio_file,
1977 &pad);
1978 else /* regular file */
1979 ret = add_one_audio_file(path, &pad);
1980 if (ret < 0) {
1981 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1982 para_strerror(-ret));
1983 free(path);
1984 return ret;
1985 }
1986 free(path);
1987 }
1988 return 1;
1989 }
1990
1991 /**
1992 * Flags used by the touch command.
1993 *
1994 * \sa com_touch().
1995 */
1996 enum touch_flags {
1997 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1998 TOUCH_FLAG_FNM_PATHNAME = 1,
1999 /** Activates verbose mode. */
2000 TOUCH_FLAG_VERBOSE = 2
2001 };
2002
2003 /** Options used by com_touch(). */
2004 struct com_touch_options {
2005 /** New num_played value. */
2006 int32_t num_played;
2007 /** New last played count. */
2008 int64_t last_played;
2009 /** New lyrics id. */
2010 int32_t lyrics_id;
2011 /** New image id. */
2012 int32_t image_id;
2013 /** New amplification value. */
2014 int32_t amp;
2015 /** Command line flags (see \ref touch_flags). */
2016 unsigned flags;
2017 };
2018
2019 /** Data passed to the action handler of com_touch(). */
2020 struct touch_action_data {
2021 /** Command line options (see \ref com_touch_options). */
2022 struct com_touch_options *cto;
2023 /** Message buffer. */
2024 struct para_buffer pb;
2025 };
2026
2027 static int touch_audio_file(__a_unused struct osl_table *table,
2028 struct osl_row *row, const char *name, void *data)
2029 {
2030 struct touch_action_data *tad = data;
2031 struct osl_object obj;
2032 struct afs_info old_afsi, new_afsi;
2033 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2034 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2035 struct afsi_change_event_data aced;
2036
2037 ret = get_afsi_object_of_row(row, &obj);
2038 if (ret < 0) {
2039 para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2040 return ret;
2041 }
2042 ret = load_afsi(&old_afsi, &obj);
2043 if (ret < 0) {
2044 para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2045 return ret;
2046 }
2047 new_afsi = old_afsi;
2048 if (no_options) {
2049 new_afsi.num_played++;
2050 new_afsi.last_played = time(NULL);
2051 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
2052 para_printf(&tad->pb, "%s: num_played = %u, "
2053 "last_played = now()\n", name,
2054 new_afsi.num_played);
2055 } else {
2056 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
2057 para_printf(&tad->pb, "touching %s\n", name);
2058 if (tad->cto->lyrics_id >= 0)
2059 new_afsi.lyrics_id = tad->cto->lyrics_id;
2060 if (tad->cto->image_id >= 0)
2061 new_afsi.image_id = tad->cto->image_id;
2062 if (tad->cto->num_played >= 0)
2063 new_afsi.num_played = tad->cto->num_played;
2064 if (tad->cto->last_played >= 0)
2065 new_afsi.last_played = tad->cto->last_played;
2066 if (tad->cto->amp >= 0)
2067 new_afsi.amp = tad->cto->amp;
2068 }
2069 save_afsi(&new_afsi, &obj); /* in-place update */
2070 aced.aft_row = row;
2071 aced.old_afsi = &old_afsi;
2072 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2073 return 1;
2074 }
2075
2076 static void com_touch_callback(int fd, const struct osl_object *query)
2077 {
2078 struct touch_action_data tad = {.cto = query->data,
2079 .pb = {
2080 .max_size = shm_get_shmmax(),
2081 .private_data = &(struct afs_max_size_handler_data) {
2082 .fd = fd,
2083 .band = SBD_OUTPUT
2084 },
2085 .max_size_handler = afs_max_size_handler
2086 }
2087 };
2088 int ret;
2089 struct pattern_match_data pmd = {
2090 .table = audio_file_table,
2091 .loop_col_num = AFTCOL_HASH,
2092 .match_col_num = AFTCOL_PATH,
2093 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2094 .size = query->size - sizeof(*tad.cto)},
2095 .data = &tad,
2096 .action = touch_audio_file
2097 };
2098 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2099 pmd.fnmatch_flags |= FNM_PATHNAME;
2100 ret = for_each_matching_row(&pmd);
2101 if (ret < 0)
2102 para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2103 else if (pmd.num_matches == 0)
2104 para_printf(&tad.pb, "no matches\n");
2105 if (tad.pb.offset)
2106 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2107 free(tad.pb.buf);
2108 }
2109
2110 int com_touch(struct command_context *cc)
2111 {
2112 struct com_touch_options cto = {
2113 .num_played = -1,
2114 .last_played = -1,
2115 .lyrics_id = -1,
2116 .image_id = -1,
2117 .amp = -1,
2118 };
2119 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2120 int i, ret;
2121
2122
2123 for (i = 1; i < cc->argc; i++) {
2124 const char *arg = cc->argv[i];
2125 if (arg[0] != '-')
2126 break;
2127 if (!strcmp(arg, "--")) {
2128 i++;
2129 break;
2130 }
2131 if (!strncmp(arg, "-n=", 3)) {
2132 ret = para_atoi32(arg + 3, &cto.num_played);
2133 if (ret < 0)
2134 return ret;
2135 continue;
2136 }
2137 if (!strncmp(arg, "-l=", 3)) {
2138 ret = para_atoi64(arg + 3, &cto.last_played);
2139 if (ret < 0)
2140 return ret;
2141 continue;
2142 }
2143 if (!strncmp(arg, "-y=", 3)) {
2144 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2145 if (ret < 0)
2146 return ret;
2147 continue;
2148 }
2149 if (!strncmp(arg, "-i=", 3)) {
2150 ret = para_atoi32(arg + 3, &cto.image_id);
2151 if (ret < 0)
2152 return ret;
2153 continue;
2154 }
2155 if (!strncmp(arg, "-a=", 3)) {
2156 int32_t val;
2157 ret = para_atoi32(arg + 3, &val);
2158 if (ret < 0)
2159 return ret;
2160 if (val < 0 || val > 255)
2161 return -ERRNO_TO_PARA_ERROR(EINVAL);
2162 cto.amp = val;
2163 continue;
2164 }
2165 if (!strcmp(arg, "-p")) {
2166 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2167 continue;
2168 }
2169 if (!strcmp(arg, "-v")) {
2170 cto.flags |= TOUCH_FLAG_VERBOSE;
2171 continue;
2172 }
2173 break; /* non-option starting with dash */
2174 }
2175 if (i >= cc->argc)
2176 return -E_AFT_SYNTAX;
2177 ret = send_option_arg_callback_request(&query, cc->argc - i,
2178 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2179 if (ret < 0)
2180 send_strerror(cc, -ret);
2181 return ret;
2182 }
2183
2184 /** Flags for com_rm(). */
2185 enum rm_flags {
2186 /** -v */
2187 RM_FLAG_VERBOSE = 1,
2188 /** -f */
2189 RM_FLAG_FORCE = 2,
2190 /** -p */
2191 RM_FLAG_FNM_PATHNAME = 4
2192 };
2193
2194 /** Data passed to the action handler of com_rm(). */
2195 struct com_rm_action_data {
2196 /** Command line flags ((see \ref rm_flags). */
2197 uint32_t flags;
2198 /** Message buffer. */
2199 struct para_buffer pb;
2200 };
2201
2202 static int remove_audio_file(__a_unused struct osl_table *table,
2203 struct osl_row *row, const char *name, void *data)
2204 {
2205 struct com_rm_action_data *crd = data;
2206 int ret;
2207
2208 if (crd->flags & RM_FLAG_VERBOSE)
2209 para_printf(&crd->pb, "removing %s\n", name);
2210 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2211 ret = osl(osl_del_row(audio_file_table, row));
2212 if (ret < 0)
2213 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2214 return ret;
2215 }
2216
2217 static void com_rm_callback(int fd, const struct osl_object *query)
2218 {
2219 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2220 .pb = {
2221 .max_size = shm_get_shmmax(),
2222 .private_data = &(struct afs_max_size_handler_data) {
2223 .fd = fd,
2224 .band = SBD_OUTPUT
2225 },
2226 .max_size_handler = afs_max_size_handler
2227 }
2228 };
2229 int ret;
2230 struct pattern_match_data pmd = {
2231 .table = audio_file_table,
2232 .loop_col_num = AFTCOL_HASH,
2233 .match_col_num = AFTCOL_PATH,
2234 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2235 .size = query->size - sizeof(uint32_t)},
2236 .data = &crd,
2237 .action = remove_audio_file
2238 };
2239 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2240 pmd.fnmatch_flags |= FNM_PATHNAME;
2241 ret = for_each_matching_row(&pmd);
2242 if (ret < 0) {
2243 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2244 return;
2245 }
2246 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2247 para_printf(&crd.pb, "no matches -- nothing removed\n");
2248 else if (crd.flags & RM_FLAG_VERBOSE)
2249 para_printf(&crd.pb, "removed %u files\n", pmd.num_matches);
2250 if (ret >= 0 && crd.pb.offset)
2251 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2252 free(crd.pb.buf);
2253 }
2254
2255 /* TODO options: -r (recursive) */
2256 int com_rm(struct command_context *cc)
2257 {
2258 uint32_t flags = 0;
2259 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2260 int i, ret;
2261
2262 for (i = 1; i < cc->argc; i++) {
2263 const char *arg = cc->argv[i];
2264 if (arg[0] != '-')
2265 break;
2266 if (!strcmp(arg, "--")) {
2267 i++;
2268 break;
2269 }
2270 if (!strcmp(arg, "-f")) {
2271 flags |= RM_FLAG_FORCE;
2272 continue;
2273 }
2274 if (!strcmp(arg, "-p")) {
2275 flags |= RM_FLAG_FNM_PATHNAME;
2276 continue;
2277 }
2278 if (!strcmp(arg, "-v")) {
2279 flags |= RM_FLAG_VERBOSE;
2280 continue;
2281 }
2282 break;
2283 }
2284 if (i >= cc->argc)
2285 return -E_AFT_SYNTAX;
2286 ret = send_option_arg_callback_request(&query, cc->argc - i,
2287 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2288 if (ret < 0)
2289 send_strerror(cc, -ret);
2290 return ret;
2291 }
2292
2293 /**
2294 * Flags used by the cpsi command.
2295 *
2296 * \sa com_cpsi().
2297 */
2298 enum cpsi_flags {
2299 /** Whether the lyrics id should be copied. */
2300 CPSI_FLAG_COPY_LYRICS_ID = 1,
2301 /** Whether the image id should be copied. */
2302 CPSI_FLAG_COPY_IMAGE_ID = 2,
2303 /** Whether the lastplayed time should be copied. */
2304 CPSI_FLAG_COPY_LASTPLAYED = 4,
2305 /** Whether the numplayed count should be copied. */
2306 CPSI_FLAG_COPY_NUMPLAYED = 8,
2307 /** Whether the attributes should be copied. */
2308 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2309 /** Activates verbose mode. */
2310 CPSI_FLAG_VERBOSE = 32,
2311 };
2312
2313 /** Data passed to the action handler of com_cpsi(). */
2314 struct cpsi_action_data {
2315 /** command line flags (see \ref cpsi_flags). */
2316 unsigned flags;
2317 /** Message buffer. */
2318 struct para_buffer pb;
2319 /** Values are copied from here. */
2320 struct afs_info source_afsi;
2321 };
2322
2323 static int copy_selector_info(__a_unused struct osl_table *table,
2324 struct osl_row *row, const char *name, void *data)
2325 {
2326 struct cpsi_action_data *cad = data;
2327 struct osl_object target_afsi_obj;
2328 int ret;
2329 struct afs_info old_afsi, target_afsi;
2330 struct afsi_change_event_data aced;
2331
2332 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2333 if (ret < 0)
2334 return ret;
2335 load_afsi(&target_afsi, &target_afsi_obj);
2336 old_afsi = target_afsi;
2337 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2338 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2339 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2340 target_afsi.image_id = cad->source_afsi.image_id;
2341 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2342 target_afsi.last_played = cad->source_afsi.last_played;
2343 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2344 target_afsi.num_played = cad->source_afsi.num_played;
2345 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2346 target_afsi.attributes = cad->source_afsi.attributes;
2347 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2348 if (cad->flags & CPSI_FLAG_VERBOSE)
2349 para_printf(&cad->pb, "copied afsi to %s\n", name);
2350 aced.aft_row = row;
2351 aced.old_afsi = &old_afsi;
2352 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2353 return 1;
2354 }
2355
2356 static void com_cpsi_callback(int fd, const struct osl_object *query)
2357 {
2358 struct cpsi_action_data cad = {
2359 .flags = *(unsigned *)query->data,
2360 .pb = {
2361 .max_size = shm_get_shmmax(),
2362 .private_data = &(struct afs_max_size_handler_data) {
2363 .fd = fd,
2364 .band = SBD_OUTPUT
2365 },
2366 .max_size_handler = afs_max_size_handler
2367 }
2368 };
2369 int ret;
2370 char *source_path = (char *)query->data + sizeof(cad.flags);
2371 struct pattern_match_data pmd = {
2372 .table = audio_file_table,
2373 .loop_col_num = AFTCOL_HASH,
2374 .match_col_num = AFTCOL_PATH,
2375 .patterns = {.data = source_path + strlen(source_path) + 1,
2376 .size = query->size - sizeof(cad.flags)
2377 - strlen(source_path) - 1},
2378 .data = &cad,
2379 .action = copy_selector_info
2380 };
2381
2382 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2383 if (ret < 0)
2384 goto out;
2385 ret = for_each_matching_row(&pmd);
2386 out:
2387 if (ret < 0)
2388 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2389 else if (pmd.num_matches > 0) {
2390 if (cad.flags & CPSI_FLAG_VERBOSE)
2391 para_printf(&cad.pb, "copied requested afsi from %s "
2392 "to %u files\n", source_path, pmd.num_matches);
2393 } else
2394 para_printf(&cad.pb, "no matches - nothing copied\n");
2395 if (cad.pb.offset)
2396 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2397 free(cad.pb.buf);
2398 }
2399
2400 int com_cpsi(struct command_context *cc)
2401 {
2402 unsigned flags = 0;
2403 int i, ret;
2404 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2405
2406 for (i = 1; i < cc->argc; i++) {
2407 const char *arg = cc->argv[i];
2408 if (arg[0] != '-')
2409 break;
2410 if (!strcmp(arg, "--")) {
2411 i++;
2412 break;
2413 }
2414 if (!strcmp(arg, "-y")) {
2415 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2416 continue;
2417 }
2418 if (!strcmp(arg, "-i")) {
2419 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2420 continue;
2421 }
2422 if (!strcmp(arg, "-l")) {
2423 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2424 continue;
2425 }
2426 if (!strcmp(arg, "-n")) {
2427 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2428 continue;
2429 }
2430 if (!strcmp(arg, "-a")) {
2431 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2432 continue;
2433 }
2434 if (!strcmp(arg, "-v")) {
2435 flags |= CPSI_FLAG_VERBOSE;
2436 continue;
2437 }
2438 break;
2439 }
2440 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2441 return -E_AFT_SYNTAX;
2442 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2443 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2444 ret = send_option_arg_callback_request(&options, cc->argc - i,
2445 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2446 if (ret < 0)
2447 send_strerror(cc, -ret);
2448 return ret;
2449 }
2450
2451 struct change_atts_data {
2452 uint64_t add_mask, del_mask;
2453 struct para_buffer pb;
2454 };
2455
2456 static int change_atts(__a_unused struct osl_table *table,
2457 struct osl_row *row, __a_unused const char *name, void *data)
2458 {
2459 int ret;
2460 struct osl_object obj;
2461 struct afs_info old_afsi, new_afsi;
2462 struct afsi_change_event_data aced = {
2463 .aft_row = row,
2464 .old_afsi = &old_afsi
2465 };
2466 struct change_atts_data *cad = data;
2467
2468 ret = get_afsi_object_of_row(row, &obj);
2469 if (ret < 0)
2470 return ret;
2471 ret = load_afsi(&old_afsi, &obj);
2472 if (ret < 0)
2473 return ret;
2474 new_afsi = old_afsi;
2475 new_afsi.attributes |= cad->add_mask;
2476 new_afsi.attributes &= ~cad->del_mask;
2477 save_afsi(&new_afsi, &obj); /* in-place update */
2478 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2479 return 1;
2480 }
2481
2482 static void com_setatt_callback(int fd, const struct osl_object *query)
2483 {
2484 char *p;
2485 int ret;
2486 size_t len;
2487 struct change_atts_data cad = {
2488 .pb = {
2489 .max_size = shm_get_shmmax(),
2490 .max_size_handler = afs_max_size_handler,
2491 .private_data = &(struct afs_max_size_handler_data) {
2492 .fd = fd,
2493 .band = SBD_OUTPUT
2494 }
2495 }
2496 };
2497 struct pattern_match_data pmd = {
2498 .table = audio_file_table,
2499 .loop_col_num = AFTCOL_HASH,
2500 .match_col_num = AFTCOL_PATH,
2501 .pm_flags = PM_SKIP_EMPTY_NAME,
2502 .data = &cad,
2503 .action = change_atts
2504 };
2505
2506 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2507 char c;
2508 unsigned char bitnum;
2509
2510 len = strlen(p);
2511 ret = -E_ATTR_SYNTAX;
2512 if (len == 0)
2513 goto out;
2514 c = p[len - 1];
2515 if (c != '+' && c != '-')
2516 break;
2517 p[len - 1] = '\0';
2518 ret = get_attribute_bitnum_by_name(p, &bitnum);
2519 if (ret < 0) {
2520 para_printf(&cad.pb, "attribute not found: %s\n", p);
2521 goto out;
2522 }
2523 if (c == '+')
2524 cad.add_mask |= (1UL << bitnum);
2525 else
2526 cad.del_mask |= (1UL << bitnum);
2527 }
2528 ret = -E_ATTR_SYNTAX;
2529 if (!cad.add_mask && !cad.del_mask)
2530 goto out;
2531 pmd.patterns.data = p;
2532 assert(p < (char *)query->data + query->size);
2533 pmd.patterns.size = (char *)query->data + query->size - p;
2534 ret = for_each_matching_row(&pmd);
2535 if (ret < 0)
2536 goto out;
2537 if (pmd.num_matches == 0)
2538 para_printf(&cad.pb, "no matches\n");
2539 out:
2540 if (ret < 0)
2541 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2542 if (cad.pb.offset)
2543 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2544 free(cad.pb.buf);
2545 }
2546
2547 int com_setatt(struct command_context *cc)
2548 {
2549 if (cc->argc < 3)
2550 return -E_ATTR_SYNTAX;
2551 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2552 com_setatt_callback, afs_cb_result_handler, cc);
2553 }
2554
2555 static void afs_stat_callback(int fd, const struct osl_object *query)
2556 {
2557 int *parser_friendly = query->data;
2558 char *buf = *parser_friendly?
2559 parser_friendly_status_items : status_items;
2560
2561 if (!buf)
2562 return;
2563 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2564 }
2565
2566 /**
2567 * Get the current afs status items from the afs process and send it.
2568 *
2569 * \param cc The command context, used e.g. for data encryption.
2570 * \param parser_friendly Whether parser-friendly output format should be used.
2571 *
2572 * As the contents of the afs status items change in time and the command
2573 * handler only has a COW version created at fork time, it can not send
2574 * up-to-date afs status items directly. Therefore the usual callback mechanism
2575 * is used to pass the status items from the afs process to the command handler
2576 * via a shared memory area and a pipe.
2577 *
2578 * \return The return value of the underlying call to \ref send_callback_request().
2579 */
2580 int send_afs_status(struct command_context *cc, int parser_friendly)
2581 {
2582 struct osl_object query = {.data = &parser_friendly,
2583 .size = sizeof(parser_friendly)};
2584
2585 return send_callback_request(afs_stat_callback, &query,
2586 afs_cb_result_handler, cc);
2587 }
2588
2589 /* returns success even on errors to keep the loop going */
2590 static int check_audio_file(struct osl_row *row, void *data)
2591 {
2592 char *path;
2593 struct para_buffer *pb = data;
2594 struct stat statbuf;
2595 int ret = get_audio_file_path_of_row(row, &path);
2596 struct afs_info afsi;
2597 char *blob_name;
2598
2599 if (ret < 0) {
2600 para_printf(pb, "%s\n", para_strerror(-ret));
2601 return 0;
2602 }
2603 if (stat(path, &statbuf) < 0)
2604 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2605 else if (!S_ISREG(statbuf.st_mode))
2606 para_printf(pb, "%s: not a regular file\n", path);
2607 ret = get_afsi_of_row(row, &afsi);
2608 if (ret < 0) {
2609 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2610 return 1;
2611 }
2612 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2613 if (ret < 0)
2614 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2615 para_strerror(-ret));
2616 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2617 if (ret < 0)
2618 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2619 para_strerror(-ret));
2620 return 0;
2621 }
2622
2623 /**
2624 * Check the audio file table for inconsistencies.
2625 *
2626 * \param fd The afs socket.
2627 * \param query Unused.
2628 *
2629 * This function always succeeds.
2630 *
2631 * \sa com_check().
2632 */
2633 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2634 {
2635 struct para_buffer pb = {
2636 .max_size = shm_get_shmmax(),
2637 .private_data = &(struct afs_max_size_handler_data) {
2638 .fd = fd,
2639 .band = SBD_OUTPUT
2640 },
2641 .max_size_handler = afs_max_size_handler
2642 };
2643 para_printf(&pb, "checking audio file table...\n");
2644 audio_file_loop(&pb, check_audio_file);
2645 if (pb.offset)
2646 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2647 free(pb.buf);
2648 }
2649
2650 /**
2651 * Close the audio file table.
2652 *
2653 * \param flags Usual flags that are passed to osl_close_table().
2654 *
2655 * \sa osl_close_table().
2656 */
2657 static void aft_close(void)
2658 {
2659 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2660 audio_file_table = NULL;
2661 }
2662
2663 /**
2664 * Open the audio file table.
2665 *
2666 * \param dir The database directory.
2667 *
2668 * \return Standard.
2669 *
2670 * \sa osl_open_table().
2671 */
2672 static int aft_open(const char *dir)
2673 {
2674 int ret;
2675
2676 audio_file_table_desc.dir = dir;
2677 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2678 if (ret >= 0) {
2679 unsigned num;
2680 osl_get_num_rows(audio_file_table, &num);
2681 PARA_INFO_LOG("audio file table contains %d files\n", num);
2682 return ret;
2683 }
2684 PARA_NOTICE_LOG("failed to open audio file table\n");
2685 audio_file_table = NULL;
2686 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2687 return 1;
2688 return ret;
2689 }
2690
2691 static int aft_create(const char *dir)
2692 {
2693 audio_file_table_desc.dir = dir;
2694 return osl(osl_create_table(&audio_file_table_desc));
2695 }
2696
2697 static int clear_attribute(struct osl_row *row, void *data)
2698 {
2699 struct rmatt_event_data *red = data;
2700 struct afs_info afsi;
2701 struct osl_object obj;
2702 int ret = get_afsi_object_of_row(row, &obj);
2703 uint64_t mask = ~(1ULL << red->bitnum);
2704
2705 if (ret < 0)
2706 return ret;
2707 ret = load_afsi(&afsi, &obj);
2708 if (ret < 0)
2709 return ret;
2710 afsi.attributes &= mask;
2711 save_afsi(&afsi, &obj);
2712 return 1;
2713 }
2714
2715 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2716 void *data)
2717 {
2718 int ret;
2719
2720 switch (event) {
2721 case ATTRIBUTE_REMOVE: {
2722 const struct rmatt_event_data *red = data;
2723 para_printf(pb, "clearing attribute %s (bit %u) from all "
2724 "entries in the audio file table\n", red->name,
2725 red->bitnum);
2726 return audio_file_loop(data, clear_attribute);
2727 } case AFSI_CHANGE: {
2728 struct afsi_change_event_data *aced = data;
2729 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2730 if (aced->aft_row != current_aft_row)
2731 return 0;
2732 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2733 if (ret < 0)
2734 return ret;
2735 status_item_ls_data.afsi.last_played = old_last_played;
2736 make_status_items();
2737 return 1;
2738 } case AFHI_CHANGE: {
2739 if (data != current_aft_row)
2740 return 0;
2741 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2742 if (ret < 0)
2743 return ret;
2744 make_status_items();
2745 return 1;
2746 } default:
2747 return 0;
2748 }
2749 }
2750
2751 /**
2752 * Initialize the audio file table.
2753 *
2754 * \param t Pointer to the structure to be initialized.
2755 */
2756 void aft_init(struct afs_table *t)
2757 {
2758 t->open = aft_open;
2759 t->close = aft_close;
2760 t->create = aft_create;
2761 t->event_handler = aft_event_handler;
2762 }