aft: Store resolved paths when adding files.
[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 char *buf;
673 int ret;
674
675 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
676 if (ret < 0)
677 return ret;
678 *afd = *(struct audio_file_data *)shm_afd;
679 buf = shm_afd;
680 buf += sizeof(*afd);
681 load_chunk_table(&afd->afhi, buf);
682 shm_detach(shm_afd);
683 return 1;
684 }
685
686 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
687 time_t current_time, enum ls_listing_mode lm)
688 {
689 struct tm t;
690
691 if (!localtime_r((time_t *)seconds, &t))
692 return -E_LOCALTIME;
693 if (lm == LS_MODE_MBOX) {
694 if (!strftime(buf, size, "%c", &t))
695 return -E_STRFTIME;
696 return 1;
697 }
698 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
699 if (!strftime(buf, size, "%b %e %k:%M", &t))
700 return -E_STRFTIME;
701 return 1;
702 }
703 if (!strftime(buf, size, "%b %e %Y", &t))
704 return -E_STRFTIME;
705 return 1;
706 }
707
708 /** Compute the number of (decimal) digits of a number. */
709 #define GET_NUM_DIGITS(x, num) { \
710 typeof((x)) _tmp = PARA_ABS(x); \
711 *num = 1; \
712 if ((_tmp)) \
713 while ((_tmp) > 9) { \
714 (_tmp) /= 10; \
715 (*num)++; \
716 } \
717 }
718
719 __a_const static short unsigned get_duration_width(int seconds)
720 {
721 short unsigned width;
722 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
723
724 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
725 return 4 + (mins > 9);
726 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
727 GET_NUM_DIGITS(hours, &width);
728 return width + 6;
729 }
730
731 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
732 {
733 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
734 short unsigned max_width;
735
736 if (!hours) { /* m:ss or mm:ss */
737 max_width = opts->mode == LS_MODE_LONG?
738 opts->widths.duration_width : 4;
739 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
740 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
741 max_width = opts->mode == LS_MODE_LONG?
742 opts->widths.duration_width : 7;
743 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
744 seconds % 60);
745 }
746 }
747
748 static int write_attribute_items(struct para_buffer *b,
749 const char *att_bitmap, struct afs_info *afsi)
750 {
751 char *att_text;
752 int ret;
753
754 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
755 if (ret < 0)
756 return ret;
757 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
758 if (ret < 0)
759 return ret;
760 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
761 free(att_text);
762 return ret;
763 }
764
765 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
766 {
767 char *lyrics_name;
768 int ret;
769
770 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
771 if (ret < 0)
772 return ret;
773 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
774 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
775 lyrics_name : "(none)");
776 }
777
778 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
779 {
780 char *image_name;
781 int ret;
782
783 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
784 if (ret < 0)
785 return ret;
786 img_get_name_by_id(afsi->image_id, &image_name);
787 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
788 image_name : "(none)");
789 }
790
791 static int write_filename_items(struct para_buffer *b, const char *path,
792 unsigned flags)
793 {
794 char *val;
795 int ret;
796
797 if (!(flags & LS_FLAG_FULL_PATH))
798 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
799 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
800 if (ret < 0)
801 return ret;
802 val = para_basename(path);
803 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
804 if (ret < 0)
805 return ret;
806 val = para_dirname(path);
807 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
808 free(val);
809 return ret;
810 }
811
812 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
813 {
814 struct osl_object chunk_table_obj;
815 struct osl_row *aft_row;
816 int ret, i;
817 char *buf;
818
819 ret = aft_get_row_of_hash(d->hash, &aft_row);
820 if (ret < 0)
821 return ret;
822 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
823 AFTCOL_CHUNKS, &chunk_table_obj));
824 if (ret < 0)
825 return ret;
826 ret = para_printf(b, "%s\n"
827 "chunk_time: %lu:%lu\nchunk_offsets: ",
828 d->path,
829 (long unsigned) d->afhi.chunk_tv.tv_sec,
830 (long unsigned) d->afhi.chunk_tv.tv_usec
831 );
832 if (ret < 0)
833 goto out;
834 buf = chunk_table_obj.data;
835 for (i = 0; i <= d->afhi.chunks_total; i++) {
836 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
837 if (ret < 0)
838 goto out;
839 }
840 ret = para_printf(b, "\n");
841 out:
842 osl_close_disk_object(&chunk_table_obj);
843 return ret;
844 }
845
846 static int write_score(struct para_buffer *b, struct ls_data *d,
847 struct ls_options *opts)
848 {
849 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
850 return 0;
851 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
852 }
853
854 static int print_list_item(struct ls_data *d, struct ls_options *opts,
855 struct para_buffer *b, time_t current_time)
856 {
857 int ret;
858 char att_buf[65];
859 char last_played_time[30];
860 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
861 struct afs_info *afsi = &d->afsi;
862 struct afh_info *afhi = &d->afhi;
863 char asc_hash[2 * HASH_SIZE + 1];
864
865 if (opts->mode == LS_MODE_SHORT) {
866 ret = para_printf(b, "%s\n", d->path);
867 goto out;
868 }
869 if (opts->mode == LS_MODE_CHUNKS) {
870 ret = print_chunk_table(d, b);
871 goto out;
872 }
873 get_attribute_bitmap(&afsi->attributes, att_buf);
874 if (opts->flags & LS_FLAG_UNIXDATE)
875 sprintf(last_played_time, "%llu",
876 (long long unsigned)afsi->last_played);
877 else {
878 ret = get_local_time(&afsi->last_played, last_played_time,
879 sizeof(last_played_time), current_time, opts->mode);
880 if (ret < 0)
881 goto out;
882 }
883 get_duration_buf(afhi->seconds_total, duration_buf, opts);
884 if (opts->mode == LS_MODE_LONG) {
885 struct ls_widths *w = &opts->widths;
886 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
887 ret = para_printf(b, "%*li ",
888 opts->widths.score_width, d->score);
889 if (ret < 0)
890 goto out;
891 }
892 ret = para_printf(b,
893 "%s " /* attributes */
894 "%*u " /* amp */
895 "%*d " /* image_id */
896 "%*d " /* lyrics_id */
897 "%*d " /* bitrate */
898 "%*s " /* audio format */
899 "%*d " /* frequency */
900 "%d " /* channels */
901 "%s " /* duration */
902 "%*d " /* num_played */
903 "%s " /* last_played */
904 "%s\n", /* path */
905 att_buf,
906 w->amp_width, afsi->amp,
907 w->image_id_width, afsi->image_id,
908 w->lyrics_id_width, afsi->lyrics_id,
909 w->bitrate_width, afhi->bitrate,
910 w->audio_format_width,
911 audio_format_name(afsi->audio_format_id),
912 w->frequency_width, afhi->frequency,
913 afhi->channels,
914 duration_buf,
915 w->num_played_width, afsi->num_played,
916 last_played_time,
917 d->path
918 );
919 goto out;
920 }
921 if (opts->mode == LS_MODE_MBOX) {
922 const char *bn = para_basename(d->path);
923 ret = para_printf(b,
924 "From foo@localhost %s\n"
925 "Received: from\nTo: bar\nFrom: a\n"
926 "Subject: %s\n\n",
927 last_played_time,
928 bn? bn : "?");
929 if (ret < 0)
930 goto out;
931 }
932 ret = write_filename_items(b, d->path, opts->flags);
933 if (ret < 0)
934 goto out;
935 ret = write_score(b, d, opts);
936 if (ret < 0)
937 goto out;
938 ret = write_attribute_items(b, att_buf, afsi);
939 if (ret < 0)
940 goto out;
941 ret = write_image_items(b, afsi);
942 if (ret < 0)
943 goto out;
944 ret = write_lyrics_items(b, afsi);
945 if (ret < 0)
946 goto out;
947 hash_to_asc(d->hash, asc_hash);
948 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
949 if (ret < 0)
950 goto out;
951 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
952 if (ret < 0)
953 goto out;
954 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
955 audio_format_name(afsi->audio_format_id));
956 if (ret < 0)
957 goto out;
958 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
959 if (ret < 0)
960 goto out;
961 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
965 if (ret < 0)
966 goto out;
967 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
968 afhi->seconds_total);
969 if (ret < 0)
970 goto out;
971 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
978 if (ret < 0)
979 goto out;
980 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
981 tv2ms(&afhi->chunk_tv));
982 if (ret < 0)
983 goto out;
984 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
985 afhi->chunks_total);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
992 if (ret < 0)
993 goto out;
994 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
995 if (ret < 0)
996 goto out;
997 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
998 if (ret < 0)
999 goto out;
1000 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1001 if (ret < 0)
1002 goto out;
1003 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1004 if (ret < 0)
1005 goto out;
1006 if (opts->mode == LS_MODE_MBOX) {
1007 struct osl_object lyrics_def;
1008 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1009 if (lyrics_def.data) {
1010 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1011 (char *)lyrics_def.data);
1012 osl_close_disk_object(&lyrics_def);
1013 }
1014 }
1015 out:
1016 return ret;
1017 }
1018
1019 static struct ls_data status_item_ls_data;
1020 static struct osl_row *current_aft_row;
1021
1022 static void make_inode_status_items(struct para_buffer *pb)
1023 {
1024 struct stat statbuf = {.st_size = 0};
1025 char *path, mtime_str[30] = "\0";
1026 struct tm mtime_tm;
1027 int ret;
1028
1029 ret = get_audio_file_path_of_row(current_aft_row, &path);
1030 if (ret < 0)
1031 goto out;
1032 ret = stat(path, &statbuf);
1033 if (ret < 0)
1034 goto out;
1035 localtime_r(&statbuf.st_mtime, &mtime_tm);
1036 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
1037 assert(ret > 0); /* number of bytes placed in mtime_str */
1038 out:
1039 /* We don't care too much about errors here */
1040 (void)WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
1041 (void)WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
1042 }
1043
1044 static int make_status_items(void)
1045 {
1046 struct ls_options opts = {
1047 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1048 .mode = LS_MODE_VERBOSE,
1049 };
1050 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1051 time_t current_time;
1052 int ret;
1053
1054 time(&current_time);
1055 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1056 if (ret < 0)
1057 return ret;
1058 make_inode_status_items(&pb);
1059 free(status_items);
1060 status_items = pb.buf;
1061 memset(&pb, 0, sizeof(pb));
1062 pb.max_size = shm_get_shmmax() - 1;
1063 pb.flags = PBF_SIZE_PREFIX;
1064 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1065 if (ret < 0) {
1066 free(status_items);
1067 status_items = NULL;
1068 return ret;
1069 }
1070 make_inode_status_items(&pb);
1071 free(parser_friendly_status_items);
1072 parser_friendly_status_items = pb.buf;
1073 return 1;
1074 }
1075
1076 /**
1077 * Open the audio file with highest score and set up an afd structure.
1078 *
1079 * \param afd Result pointer.
1080 *
1081 * On success, the numplayed field of the audio file selector info is increased
1082 * and the lastplayed time is set to the current time. Finally, the score of
1083 * the audio file is updated.
1084 *
1085 * \return Positive shmid on success, negative on errors.
1086 */
1087 int open_and_update_audio_file(struct audio_file_data *afd)
1088 {
1089 unsigned char file_hash[HASH_SIZE];
1090 struct osl_object afsi_obj;
1091 struct afs_info new_afsi;
1092 int ret;
1093 struct afsi_change_event_data aced;
1094 struct osl_object map, chunk_table_obj;
1095 struct ls_data *d = &status_item_ls_data;
1096 again:
1097 ret = score_get_best(&current_aft_row, &d->score);
1098 if (ret < 0)
1099 return ret;
1100 ret = get_hash_of_row(current_aft_row, &d->hash);
1101 if (ret < 0)
1102 return ret;
1103 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1104 if (ret < 0)
1105 return ret;
1106 PARA_NOTICE_LOG("%s\n", d->path);
1107 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1108 if (ret < 0)
1109 return ret;
1110 ret = load_afsi(&d->afsi, &afsi_obj);
1111 if (ret < 0)
1112 return ret;
1113 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1114 if (ret < 0)
1115 return ret;
1116 d->afhi = afd->afhi;
1117 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1118 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1119 AFTCOL_CHUNKS, &chunk_table_obj));
1120 if (ret < 0)
1121 return ret;
1122 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1123 if (ret < 0)
1124 goto err;
1125 hash_function(map.data, map.size, file_hash);
1126 ret = hash_compare(file_hash, d->hash);
1127 para_munmap(map.data, map.size);
1128 if (ret) {
1129 ret = -E_HASH_MISMATCH;
1130 goto err;
1131 }
1132 new_afsi = d->afsi;
1133 new_afsi.num_played++;
1134 new_afsi.last_played = time(NULL);
1135 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1136
1137 afd->audio_format_id = d->afsi.audio_format_id;
1138 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1139 aced.aft_row = current_aft_row;
1140 aced.old_afsi = &d->afsi;
1141 /*
1142 * No need to update the status items as the AFSI_CHANGE event will
1143 * recreate them.
1144 */
1145 afs_event(AFSI_CHANGE, NULL, &aced);
1146 ret = save_afd(afd);
1147 err:
1148 free(afd->afhi.chunk_table);
1149 osl_close_disk_object(&chunk_table_obj);
1150 if (ret < 0) {
1151 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1152 ret = score_delete(current_aft_row);
1153 if (ret >= 0)
1154 goto again;
1155 }
1156 return ret;
1157 }
1158
1159 static int ls_audio_format_compare(const void *a, const void *b)
1160 {
1161 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1162 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1163 }
1164
1165 static int ls_duration_compare(const void *a, const void *b)
1166 {
1167 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1168 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1169 }
1170
1171 static int ls_bitrate_compare(const void *a, const void *b)
1172 {
1173 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1174 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1175 }
1176
1177 static int ls_lyrics_id_compare(const void *a, const void *b)
1178 {
1179 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1180 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1181 }
1182
1183 static int ls_image_id_compare(const void *a, const void *b)
1184 {
1185 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1186 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1187 }
1188
1189 static int ls_channels_compare(const void *a, const void *b)
1190 {
1191 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1192 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1193 }
1194
1195 static int ls_frequency_compare(const void *a, const void *b)
1196 {
1197 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1198 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1199 }
1200
1201 static int ls_num_played_compare(const void *a, const void *b)
1202 {
1203 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1204 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1205 }
1206
1207 static int ls_last_played_compare(const void *a, const void *b)
1208 {
1209 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1210 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1211 }
1212
1213 static int ls_score_compare(const void *a, const void *b)
1214 {
1215 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1216 return NUM_COMPARE(d1->score, d2->score);
1217 }
1218
1219 static int ls_path_compare(const void *a, const void *b)
1220 {
1221 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1222 return strcmp(d1->path, d2->path);
1223 }
1224
1225 static int sort_matching_paths(struct ls_options *options)
1226 {
1227 size_t nmemb = options->num_matching_paths;
1228 size_t size = sizeof(*options->data_ptr);
1229 int (*compar)(const void *, const void *);
1230 int i;
1231
1232 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1233 for (i = 0; i < nmemb; i++)
1234 options->data_ptr[i] = options->data + i;
1235
1236 /* In these cases the array is already sorted */
1237 if (options->sorting == LS_SORT_BY_PATH
1238 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1239 && (options->flags & LS_FLAG_FULL_PATH))
1240 return 1;
1241 if (options->sorting == LS_SORT_BY_SCORE &&
1242 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1243 return 1;
1244
1245 switch (options->sorting) {
1246 case LS_SORT_BY_PATH:
1247 compar = ls_path_compare; break;
1248 case LS_SORT_BY_SCORE:
1249 compar = ls_score_compare; break;
1250 case LS_SORT_BY_LAST_PLAYED:
1251 compar = ls_last_played_compare; break;
1252 case LS_SORT_BY_NUM_PLAYED:
1253 compar = ls_num_played_compare; break;
1254 case LS_SORT_BY_FREQUENCY:
1255 compar = ls_frequency_compare; break;
1256 case LS_SORT_BY_CHANNELS:
1257 compar = ls_channels_compare; break;
1258 case LS_SORT_BY_IMAGE_ID:
1259 compar = ls_image_id_compare; break;
1260 case LS_SORT_BY_LYRICS_ID:
1261 compar = ls_lyrics_id_compare; break;
1262 case LS_SORT_BY_BITRATE:
1263 compar = ls_bitrate_compare; break;
1264 case LS_SORT_BY_DURATION:
1265 compar = ls_duration_compare; break;
1266 case LS_SORT_BY_AUDIO_FORMAT:
1267 compar = ls_audio_format_compare; break;
1268 default:
1269 return -E_BAD_SORT;
1270 }
1271 qsort(options->data_ptr, nmemb, size, compar);
1272 return 1;
1273 }
1274
1275 /* row is either an aft_row or a row of the score table */
1276 /* TODO: Only compute widths if we need them */
1277 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1278 {
1279 int ret, i;
1280 struct ls_options *options = ls_opts;
1281 struct ls_data *d;
1282 struct ls_widths *w;
1283 unsigned short num_digits;
1284 unsigned tmp;
1285 struct osl_row *aft_row;
1286 long score;
1287 char *path;
1288
1289 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1290 ret = get_score_and_aft_row(row, &score, &aft_row);
1291 if (ret < 0)
1292 return ret;
1293 } else {
1294 aft_row = row;
1295 score = 0;
1296 }
1297 ret = get_audio_file_path_of_row(aft_row, &path);
1298 if (ret < 0)
1299 return ret;
1300 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1301 char *p = strrchr(path, '/');
1302 if (p)
1303 path = p + 1;
1304 }
1305 if (options->num_patterns) {
1306 for (i = 0; i < options->num_patterns; i++) {
1307 ret = fnmatch(options->patterns[i], path, 0);
1308 if (!ret)
1309 break;
1310 if (ret == FNM_NOMATCH)
1311 continue;
1312 return -E_FNMATCH;
1313 }
1314 if (i >= options->num_patterns) /* no match */
1315 return 1;
1316 }
1317 tmp = options->num_matching_paths++;
1318 if (options->num_matching_paths > options->array_size) {
1319 options->array_size++;
1320 options->array_size *= 2;
1321 options->data = para_realloc(options->data, options->array_size
1322 * sizeof(*options->data));
1323 }
1324 d = options->data + tmp;
1325 ret = get_afsi_of_row(aft_row, &d->afsi);
1326 if (ret < 0)
1327 return ret;
1328 ret = get_afhi_of_row(aft_row, &d->afhi);
1329 if (ret < 0)
1330 return ret;
1331 d->path = path;
1332 ret = get_hash_of_row(aft_row, &d->hash);
1333 if (ret < 0)
1334 goto err;
1335 w = &options->widths;
1336 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1337 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1338 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1339 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1340 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1341 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1342 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1343 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1344 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1345 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1346 /* get the number of chars to print this amount of time */
1347 num_digits = get_duration_width(d->afhi.seconds_total);
1348 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1349 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1350 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1351 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1352 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1353 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1354 GET_NUM_DIGITS(score, &num_digits);
1355 num_digits++; /* add one for the sign (space or "-") */
1356 w->score_width = PARA_MAX(w->score_width, num_digits);
1357 d->score = score;
1358 }
1359 return 1;
1360 err:
1361 return ret;
1362 }
1363
1364 static void com_ls_callback(int fd, const struct osl_object *query)
1365 {
1366 struct ls_options *opts = query->data;
1367 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1368 struct para_buffer b = {
1369 .max_size = shm_get_shmmax(),
1370 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1371 .max_size_handler = afs_max_size_handler,
1372 .private_data = &(struct afs_max_size_handler_data) {
1373 .fd = fd,
1374 .band = SBD_OUTPUT
1375 }
1376 };
1377 int i = 0, ret;
1378 time_t current_time;
1379
1380 if (opts->num_patterns) {
1381 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1382 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1383 opts->patterns[i] = p;
1384 p += strlen(p) + 1;
1385 }
1386 } else
1387 opts->patterns = NULL;
1388 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1389 ret = admissible_file_loop(opts, prepare_ls_row);
1390 else
1391 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1392 prepare_ls_row));
1393 if (ret < 0)
1394 goto out;
1395 if (opts->num_matching_paths == 0) {
1396 if (opts->num_patterns > 0)
1397 para_printf(&b, "no matches\n");
1398 goto out;
1399 }
1400 ret = sort_matching_paths(opts);
1401 if (ret < 0)
1402 goto out;
1403 time(&current_time);
1404 if (opts->flags & LS_FLAG_REVERSE)
1405 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1406 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1407 if (ret < 0)
1408 goto out;
1409 }
1410 else
1411 for (i = 0; i < opts->num_matching_paths; i++) {
1412 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1413 if (ret < 0)
1414 goto out;
1415 }
1416 out:
1417 if (b.offset)
1418 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1419 free(b.buf);
1420 free(opts->data);
1421 free(opts->data_ptr);
1422 free(opts->patterns);
1423 }
1424
1425 /*
1426 * TODO: flags -h (sort by hash)
1427 */
1428 int com_ls(struct command_context *cc)
1429 {
1430 int i, ret;
1431 unsigned flags = 0;
1432 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1433 enum ls_listing_mode mode = LS_MODE_SHORT;
1434 struct ls_options opts = {.patterns = NULL};
1435 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1436
1437 for (i = 1; i < cc->argc; i++) {
1438 const char *arg = cc->argv[i];
1439 if (arg[0] != '-')
1440 break;
1441 if (!strcmp(arg, "--")) {
1442 i++;
1443 break;
1444 }
1445 if (!strncmp(arg, "-l", 2)) {
1446 if (!*(arg + 2)) {
1447 mode = LS_MODE_LONG;
1448 continue;
1449 }
1450 if (*(arg + 3))
1451 return -E_AFT_SYNTAX;
1452 switch(*(arg + 2)) {
1453 case 's':
1454 mode = LS_MODE_SHORT;
1455 continue;
1456 case 'l':
1457 mode = LS_MODE_LONG;
1458 continue;
1459 case 'v':
1460 mode = LS_MODE_VERBOSE;
1461 continue;
1462 case 'm':
1463 mode = LS_MODE_MBOX;
1464 continue;
1465 case 'c':
1466 mode = LS_MODE_CHUNKS;
1467 continue;
1468 case 'p':
1469 mode = LS_MODE_PARSER;
1470 continue;
1471 default:
1472 return -E_AFT_SYNTAX;
1473 }
1474 }
1475 if (!strcmp(arg, "-p")) {
1476 flags |= LS_FLAG_FULL_PATH;
1477 continue;
1478 }
1479 if (!strcmp(arg, "-a")) {
1480 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1481 continue;
1482 }
1483 if (!strcmp(arg, "-r")) {
1484 flags |= LS_FLAG_REVERSE;
1485 continue;
1486 }
1487 if (!strcmp(arg, "-d")) {
1488 flags |= LS_FLAG_UNIXDATE;
1489 continue;
1490 }
1491 if (!strncmp(arg, "-s", 2)) {
1492 if (!*(arg + 2) || *(arg + 3))
1493 return -E_AFT_SYNTAX;
1494 switch(*(arg + 2)) {
1495 case 'p':
1496 sort = LS_SORT_BY_PATH;
1497 continue;
1498 case 's': /* -ss implies -a */
1499 sort = LS_SORT_BY_SCORE;
1500 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1501 continue;
1502 case 'l':
1503 sort = LS_SORT_BY_LAST_PLAYED;
1504 continue;
1505 case 'n':
1506 sort = LS_SORT_BY_NUM_PLAYED;
1507 continue;
1508 case 'f':
1509 sort = LS_SORT_BY_FREQUENCY;
1510 continue;
1511 case 'c':
1512 sort = LS_SORT_BY_CHANNELS;
1513 continue;
1514 case 'i':
1515 sort = LS_SORT_BY_IMAGE_ID;
1516 continue;
1517 case 'y':
1518 sort = LS_SORT_BY_LYRICS_ID;
1519 continue;
1520 case 'b':
1521 sort = LS_SORT_BY_BITRATE;
1522 continue;
1523 case 'd':
1524 sort = LS_SORT_BY_DURATION;
1525 continue;
1526 case 'a':
1527 sort = LS_SORT_BY_AUDIO_FORMAT;
1528 continue;
1529 default:
1530 return -E_AFT_SYNTAX;
1531 }
1532 }
1533 return -E_AFT_SYNTAX;
1534 }
1535 opts.flags = flags;
1536 opts.sorting = sort;
1537 opts.mode = mode;
1538 opts.num_patterns = cc->argc - i;
1539 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1540 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1541 return ret;
1542 }
1543
1544 /**
1545 * Call the given function for each file in the audio file table.
1546 *
1547 * \param private_data An arbitrary data pointer, passed to \a func.
1548 * \param func The custom function to be called.
1549 *
1550 * \return Standard.
1551 */
1552 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1553 {
1554 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1555 func));
1556 }
1557
1558 static struct osl_row *find_hash_sister(unsigned char *hash)
1559 {
1560 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1561 struct osl_row *row;
1562
1563 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1564 return row;
1565 }
1566
1567 /** The format of the data stored by save_audio_file_data(). */
1568 enum com_add_buffer_offsets {
1569 /** afhi (if present) starts here. */
1570 CAB_AFHI_OFFSET_POS = 0,
1571 /** Start of the chunk table (if present). */
1572 CAB_CHUNKS_OFFSET_POS = 2,
1573 /** Audio format id. */
1574 CAB_AUDIO_FORMAT_OFFSET = 4,
1575 /** Flags given to the add command. */
1576 CAB_FLAGS_OFFSET = 5,
1577 /** The hash of the audio file being added. */
1578 CAB_HASH_OFFSET = 9,
1579 /** Start of the path of the audio file. */
1580 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1581 };
1582
1583 /*
1584 * Store the given data to a single buffer. Doesn't need the audio file selector
1585 * info struct as the server knows it as well.
1586 *
1587 * It's OK to call this with afhi == NULL. In this case, the audio format
1588 * handler info won't be stored in the buffer.
1589 */
1590 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1591 struct afh_info *afhi, uint32_t flags,
1592 uint8_t audio_format_num, struct osl_object *obj)
1593 {
1594 size_t path_len = strlen(path) + 1;
1595 size_t afhi_size = sizeof_afhi_buf(afhi);
1596 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1597 + sizeof_chunk_table(afhi);
1598 char *buf = para_malloc(size);
1599 uint16_t pos;
1600
1601 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1602 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1603
1604 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1605 strcpy(buf + CAB_PATH_OFFSET, path);
1606
1607 pos = CAB_PATH_OFFSET + path_len;
1608 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1609 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1610 pos + afhi_size - 1);
1611 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1612 save_afhi(afhi, buf + pos);
1613
1614 pos += afhi_size;
1615 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1616 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1617 if (afhi)
1618 save_chunk_table(afhi, buf + pos);
1619 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1620 obj->data = buf;
1621 obj->size = size;
1622 }
1623
1624 /*
1625
1626 Overview of the add command.
1627
1628 Input: What was passed to the callback by the command handler.
1629 ~~~~~~
1630 HS: Hash sister. Whether an audio file with identical hash
1631 already exists in the osl database.
1632
1633 PB: Path brother. Whether a file with the given path exists
1634 in the table.
1635
1636 F: Force flag given. Whether add was called with -f.
1637
1638 output: Action performed by the callback.
1639 ~~~~~~~
1640 AFHI: Whether afhi and chunk table are computed and sent.
1641 ACTION: Table modifications to be done by the callback.
1642
1643 +----+----+---+------+---------------------------------------------------+
1644 | HS | PB | F | AFHI | ACTION
1645 +----+----+---+------+---------------------------------------------------+
1646 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1647 | | update path, keep afsi
1648 +----+----+---+------+---------------------------------------------------+
1649 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1650 | | otherwise: remove PB, HS: update path, keep afhi,
1651 | | afsi.
1652 +----+----+---+------+---------------------------------------------------+
1653 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1654 | | HS, keep afsi
1655 +----+----+---+------+---------------------------------------------------+
1656 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1657 +----+----+---+------+---------------------------------------------------+
1658 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1659 | | (force has no effect)
1660 +----+----+---+------+---------------------------------------------------+
1661 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1662 +----+----+---+------+---------------------------------------------------+
1663 | N | N | Y | Y | (new file) create new entry (force has no effect)
1664 +----+----+---+------+---------------------------------------------------+
1665 | N | N | N | Y | (new file) create new entry
1666 +----+----+---+------+---------------------------------------------------+
1667
1668 Notes:
1669
1670 afhi <=> force or no HS
1671 F => AFHI
1672
1673 */
1674
1675 /** Flags passed to the add command. */
1676 enum com_add_flags {
1677 /** Skip paths that exist already. */
1678 ADD_FLAG_LAZY = 1,
1679 /** Force adding. */
1680 ADD_FLAG_FORCE = 2,
1681 /** Print what is being done. */
1682 ADD_FLAG_VERBOSE = 4,
1683 /** Try to add files with unknown suffixes. */
1684 ADD_FLAG_ALL = 8,
1685 };
1686
1687 static void com_add_callback(int fd, const struct osl_object *query)
1688 {
1689 char *buf = query->data, *path;
1690 struct osl_row *pb, *aft_row;
1691 struct osl_row *hs;
1692 struct osl_object objs[NUM_AFT_COLUMNS];
1693 unsigned char *hash;
1694 char asc[2 * HASH_SIZE + 1];
1695 int ret;
1696 char afsi_buf[AFSI_SIZE];
1697 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1698 struct afs_info default_afsi = {.last_played = 0};
1699 struct para_buffer msg = {
1700 .max_size = shm_get_shmmax(),
1701 .max_size_handler = afs_max_size_handler,
1702 .private_data = &(struct afs_max_size_handler_data) {
1703 .fd = fd,
1704 .band = SBD_OUTPUT
1705 }
1706 };
1707 uint16_t afhi_offset, chunks_offset;
1708
1709 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1710 hash_to_asc(hash, asc);
1711 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1712 objs[AFTCOL_HASH].size = HASH_SIZE;
1713
1714 path = buf + CAB_PATH_OFFSET;
1715 objs[AFTCOL_PATH].data = path;
1716 objs[AFTCOL_PATH].size = strlen(path) + 1;
1717
1718 PARA_INFO_LOG("request to add %s\n", path);
1719 hs = find_hash_sister(hash);
1720 ret = aft_get_row_of_path(path, &pb);
1721 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1722 goto out;
1723 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1724 if (flags & ADD_FLAG_VERBOSE)
1725 ret = para_printf(&msg, "ignoring duplicate\n");
1726 else
1727 ret = 1;
1728 goto out;
1729 }
1730 if (hs && hs != pb) {
1731 struct osl_object obj;
1732 if (pb) { /* hs trumps pb, remove pb */
1733 if (flags & ADD_FLAG_VERBOSE) {
1734 ret = para_printf(&msg, "removing %s\n", path);
1735 if (ret < 0)
1736 goto out;
1737 }
1738 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1739 ret = osl(osl_del_row(audio_file_table, pb));
1740 if (ret < 0)
1741 goto out;
1742 pb = NULL;
1743 }
1744 /* file rename, update hs' path */
1745 if (flags & ADD_FLAG_VERBOSE) {
1746 ret = osl(osl_get_object(audio_file_table, hs,
1747 AFTCOL_PATH, &obj));
1748 if (ret < 0)
1749 goto out;
1750 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1751 if (ret < 0)
1752 goto out;
1753 }
1754 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1755 &objs[AFTCOL_PATH]));
1756 if (ret < 0)
1757 goto out;
1758 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1759 if (!(flags & ADD_FLAG_FORCE))
1760 goto out;
1761 }
1762 /* no hs or force mode, child must have sent afhi */
1763 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1764 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1765
1766 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1767 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1768 ret = -E_NO_AFHI;
1769 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1770 goto out;
1771 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1772 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1773 if (pb && !hs) { /* update pb's hash */
1774 char old_asc[2 * HASH_SIZE + 1];
1775 unsigned char *old_hash;
1776 ret = get_hash_of_row(pb, &old_hash);
1777 if (ret < 0)
1778 goto out;
1779 hash_to_asc(old_hash, old_asc);
1780 if (flags & ADD_FLAG_VERBOSE) {
1781 ret = para_printf(&msg, "file change: %s -> %s\n",
1782 old_asc, asc);
1783 if (ret < 0)
1784 goto out;
1785 }
1786 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1787 &objs[AFTCOL_HASH]);
1788 if (ret < 0)
1789 goto out;
1790 }
1791 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1792 struct osl_row *row = pb? pb : hs;
1793 /* update afhi and chunk_table */
1794 if (flags & ADD_FLAG_VERBOSE) {
1795 ret = para_printf(&msg, "updating afhi and chunk table\n");
1796 if (ret < 0)
1797 goto out;
1798 }
1799 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1800 &objs[AFTCOL_AFHI]));
1801 if (ret < 0)
1802 goto out;
1803 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1804 &objs[AFTCOL_CHUNKS]));
1805 if (ret < 0)
1806 goto out;
1807 afs_event(AFHI_CHANGE, &msg, row);
1808 goto out;
1809 }
1810 /* new entry, use default afsi */
1811 if (flags & ADD_FLAG_VERBOSE) {
1812 ret = para_printf(&msg, "new file\n");
1813 if (ret < 0)
1814 goto out;
1815 }
1816 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1817 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1818
1819 objs[AFTCOL_AFSI].data = &afsi_buf;
1820 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1821 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1822 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1823 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1824 out:
1825 if (ret < 0)
1826 para_printf(&msg, "%s\n", para_strerror(-ret));
1827 if (msg.offset)
1828 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1829 free(msg.buf);
1830 }
1831
1832 /** Used by com_add(). */
1833 struct private_add_data {
1834 /** The pointer passed to the original command handler. */
1835 struct command_context *cc;
1836 /** The given add flags. */
1837 uint32_t flags;
1838 };
1839
1840 static void path_brother_callback(int fd, const struct osl_object *query)
1841 {
1842 char *path = query->data;
1843 struct osl_row *path_brother;
1844 int ret = aft_get_row_of_path(path, &path_brother);
1845 if (ret < 0)
1846 return;
1847 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1848 sizeof(path_brother));
1849 }
1850
1851 static void hash_sister_callback(int fd, const struct osl_object *query)
1852 {
1853 unsigned char *hash = query->data;
1854 struct osl_row *hash_sister;
1855
1856 hash_sister = find_hash_sister(hash);
1857 if (!hash_sister)
1858 return;
1859 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1860 sizeof(hash_sister));
1861 }
1862
1863 static int get_row_pointer_from_result(struct osl_object *result,
1864 __a_unused uint8_t band, void *private)
1865 {
1866 struct osl_row **row = private;
1867 *row = *(struct osl_row **)(result->data);
1868 return 1;
1869 }
1870
1871 static int add_one_audio_file(const char *path, void *private_data)
1872 {
1873 int ret, send_ret = 1, fd;
1874 uint8_t format_num = -1;
1875 struct private_add_data *pad = private_data;
1876 struct afh_info afhi, *afhi_ptr = NULL;
1877 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1878 struct osl_object map, obj = {.data = NULL}, query;
1879 unsigned char hash[HASH_SIZE];
1880
1881 ret = guess_audio_format(path);
1882 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1883 goto out_free;
1884 query.data = (char *)path;
1885 query.size = strlen(path) + 1;
1886 ret = send_callback_request(path_brother_callback, &query,
1887 get_row_pointer_from_result, &pb);
1888 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1889 goto out_free;
1890 ret = 1;
1891 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1892 if (pad->flags & ADD_FLAG_VERBOSE)
1893 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1894 "lazy-ignore: %s\n", path);
1895 goto out_free;
1896 }
1897 /* We still want to add this file. Compute its hash. */
1898 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1899 if (ret < 0)
1900 goto out_free;
1901 hash_function(map.data, map.size, hash);
1902
1903 /* Check whether the database contains a file with the same hash. */
1904 query.data = hash;
1905 query.size = HASH_SIZE;
1906 ret = send_callback_request(hash_sister_callback, &query,
1907 get_row_pointer_from_result, &hs);
1908 if (ret < 0)
1909 goto out_unmap;
1910 /* Return success if we already know this file. */
1911 ret = 1;
1912 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1913 if (pad->flags & ADD_FLAG_VERBOSE)
1914 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1915 "%s exists, not forcing update\n", path);
1916 goto out_unmap;
1917 }
1918 /*
1919 * We won't recalculate the audio format info and the chunk table if
1920 * there is a hash sister and FORCE was not given.
1921 */
1922 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1923 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1924 if (ret < 0)
1925 goto out_unmap;
1926 format_num = ret;
1927 afhi_ptr = &afhi;
1928 }
1929 munmap(map.data, map.size);
1930 close(fd);
1931 if (pad->flags & ADD_FLAG_VERBOSE) {
1932 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1933 "adding %s\n", path);
1934 if (send_ret < 0)
1935 goto out_free;
1936 }
1937 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1938 /* Ask afs to consider this entry for adding. */
1939 ret = send_callback_request(com_add_callback, &obj,
1940 afs_cb_result_handler, pad->cc);
1941 goto out_free;
1942
1943 out_unmap:
1944 close(fd);
1945 munmap(map.data, map.size);
1946 out_free:
1947 if (ret < 0 && send_ret >= 0)
1948 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1949 "failed to add %s (%s)\n", path, para_strerror(-ret));
1950 free(obj.data);
1951 clear_afhi(afhi_ptr);
1952 /* Stop adding files only on send errors. */
1953 return send_ret;
1954 }
1955
1956 int com_add(struct command_context *cc)
1957 {
1958 int i, ret;
1959 struct private_add_data pad = {.cc = cc, .flags = 0};
1960
1961 for (i = 1; i < cc->argc; i++) {
1962 const char *arg = cc->argv[i];
1963 if (arg[0] != '-')
1964 break;
1965 if (!strcmp(arg, "--")) {
1966 i++;
1967 break;
1968 }
1969 if (!strcmp(arg, "-a")) {
1970 pad.flags |= ADD_FLAG_ALL;
1971 continue;
1972 }
1973 if (!strcmp(arg, "-l")) {
1974 pad.flags |= ADD_FLAG_LAZY;
1975 continue;
1976 }
1977 if (!strcmp(arg, "-f")) {
1978 pad.flags |= ADD_FLAG_FORCE;
1979 continue;
1980 }
1981 if (!strcmp(arg, "-v")) {
1982 pad.flags |= ADD_FLAG_VERBOSE;
1983 continue;
1984 }
1985 }
1986 if (cc->argc <= i)
1987 return -E_AFT_SYNTAX;
1988 for (; i < cc->argc; i++) {
1989 char *path;
1990 ret = verify_path(cc->argv[i], &path);
1991 if (ret < 0) {
1992 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1993 cc->argv[i], para_strerror(-ret));
1994 if (ret < 0)
1995 return ret;
1996 continue;
1997 }
1998 if (ret == 1) /* directory */
1999 ret = for_each_file_in_dir(path, add_one_audio_file,
2000 &pad);
2001 else /* regular file */
2002 ret = add_one_audio_file(path, &pad);
2003 if (ret < 0) {
2004 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2005 para_strerror(-ret));
2006 free(path);
2007 return ret;
2008 }
2009 free(path);
2010 }
2011 return 1;
2012 }
2013
2014 /**
2015 * Flags used by the touch command.
2016 *
2017 * \sa com_touch().
2018 */
2019 enum touch_flags {
2020 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2021 TOUCH_FLAG_FNM_PATHNAME = 1,
2022 /** Activates verbose mode. */
2023 TOUCH_FLAG_VERBOSE = 2
2024 };
2025
2026 /** Options used by com_touch(). */
2027 struct com_touch_options {
2028 /** New num_played value. */
2029 int32_t num_played;
2030 /** New last played count. */
2031 int64_t last_played;
2032 /** New lyrics id. */
2033 int32_t lyrics_id;
2034 /** New image id. */
2035 int32_t image_id;
2036 /** New amplification value. */
2037 int32_t amp;
2038 /** Command line flags (see \ref touch_flags). */
2039 unsigned flags;
2040 };
2041
2042 /** Data passed to the action handler of com_touch(). */
2043 struct touch_action_data {
2044 /** Command line options (see \ref com_touch_options). */
2045 struct com_touch_options *cto;
2046 /** Message buffer. */
2047 struct para_buffer pb;
2048 };
2049
2050 static int touch_audio_file(__a_unused struct osl_table *table,
2051 struct osl_row *row, const char *name, void *data)
2052 {
2053 struct touch_action_data *tad = data;
2054 struct osl_object obj;
2055 struct afs_info old_afsi, new_afsi;
2056 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2057 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2058 struct afsi_change_event_data aced;
2059
2060 ret = get_afsi_object_of_row(row, &obj);
2061 if (ret < 0)
2062 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2063 ret = load_afsi(&old_afsi, &obj);
2064 if (ret < 0)
2065 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2066 new_afsi = old_afsi;
2067 if (no_options) {
2068 new_afsi.num_played++;
2069 new_afsi.last_played = time(NULL);
2070 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2071 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2072 "last_played = now()\n", name,
2073 new_afsi.num_played);
2074 if (ret < 0)
2075 return ret;
2076 }
2077 } else {
2078 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2079 ret = para_printf(&tad->pb, "touching %s\n", name);
2080 if (ret < 0)
2081 return ret;
2082 }
2083 if (tad->cto->lyrics_id >= 0)
2084 new_afsi.lyrics_id = tad->cto->lyrics_id;
2085 if (tad->cto->image_id >= 0)
2086 new_afsi.image_id = tad->cto->image_id;
2087 if (tad->cto->num_played >= 0)
2088 new_afsi.num_played = tad->cto->num_played;
2089 if (tad->cto->last_played >= 0)
2090 new_afsi.last_played = tad->cto->last_played;
2091 if (tad->cto->amp >= 0)
2092 new_afsi.amp = tad->cto->amp;
2093 }
2094 save_afsi(&new_afsi, &obj); /* in-place update */
2095 aced.aft_row = row;
2096 aced.old_afsi = &old_afsi;
2097 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2098 return 1;
2099 }
2100
2101 static void com_touch_callback(int fd, const struct osl_object *query)
2102 {
2103 struct touch_action_data tad = {.cto = query->data,
2104 .pb = {
2105 .max_size = shm_get_shmmax(),
2106 .private_data = &fd,
2107 .max_size_handler = afs_max_size_handler
2108 }
2109 };
2110 int ret, ret2 = 0;
2111 struct pattern_match_data pmd = {
2112 .table = audio_file_table,
2113 .loop_col_num = AFTCOL_HASH,
2114 .match_col_num = AFTCOL_PATH,
2115 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2116 .size = query->size - sizeof(*tad.cto)},
2117 .data = &tad,
2118 .action = touch_audio_file
2119 };
2120 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2121 pmd.fnmatch_flags |= FNM_PATHNAME;
2122 ret = for_each_matching_row(&pmd);
2123 if (ret < 0)
2124 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2125 else if (pmd.num_matches == 0)
2126 ret2 = para_printf(&tad.pb, "no matches\n");
2127 if (ret2 >= 0 && tad.pb.offset)
2128 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2129 free(tad.pb.buf);
2130 }
2131
2132 int com_touch(struct command_context *cc)
2133 {
2134 struct com_touch_options cto = {
2135 .num_played = -1,
2136 .last_played = -1,
2137 .lyrics_id = -1,
2138 .image_id = -1,
2139 .amp = -1,
2140 };
2141 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2142 int i, ret;
2143
2144
2145 for (i = 1; i < cc->argc; i++) {
2146 const char *arg = cc->argv[i];
2147 if (arg[0] != '-')
2148 break;
2149 if (!strcmp(arg, "--")) {
2150 i++;
2151 break;
2152 }
2153 if (!strncmp(arg, "-n=", 3)) {
2154 ret = para_atoi32(arg + 3, &cto.num_played);
2155 if (ret < 0)
2156 return ret;
2157 continue;
2158 }
2159 if (!strncmp(arg, "-l=", 3)) {
2160 ret = para_atoi64(arg + 3, &cto.last_played);
2161 if (ret < 0)
2162 return ret;
2163 continue;
2164 }
2165 if (!strncmp(arg, "-y=", 3)) {
2166 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2167 if (ret < 0)
2168 return ret;
2169 continue;
2170 }
2171 if (!strncmp(arg, "-i=", 3)) {
2172 ret = para_atoi32(arg + 3, &cto.image_id);
2173 if (ret < 0)
2174 return ret;
2175 continue;
2176 }
2177 if (!strncmp(arg, "-a=", 3)) {
2178 int32_t val;
2179 ret = para_atoi32(arg + 3, &val);
2180 if (ret < 0)
2181 return ret;
2182 if (val < 0 || val > 255)
2183 return -ERRNO_TO_PARA_ERROR(EINVAL);
2184 cto.amp = val;
2185 continue;
2186 }
2187 if (!strcmp(arg, "-p")) {
2188 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2189 continue;
2190 }
2191 if (!strcmp(arg, "-v")) {
2192 cto.flags |= TOUCH_FLAG_VERBOSE;
2193 continue;
2194 }
2195 break; /* non-option starting with dash */
2196 }
2197 if (i >= cc->argc)
2198 return -E_AFT_SYNTAX;
2199 ret = send_option_arg_callback_request(&query, cc->argc - i,
2200 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2201 if (ret < 0)
2202 send_strerror(cc, -ret);
2203 return ret;
2204 }
2205
2206 /** Flags for com_rm(). */
2207 enum rm_flags {
2208 /** -v */
2209 RM_FLAG_VERBOSE = 1,
2210 /** -f */
2211 RM_FLAG_FORCE = 2,
2212 /** -p */
2213 RM_FLAG_FNM_PATHNAME = 4
2214 };
2215
2216 /** Data passed to the action handler of com_rm(). */
2217 struct com_rm_action_data {
2218 /** Command line flags ((see \ref rm_flags). */
2219 uint32_t flags;
2220 /** Message buffer. */
2221 struct para_buffer pb;
2222 };
2223
2224 static int remove_audio_file(__a_unused struct osl_table *table,
2225 struct osl_row *row, const char *name, void *data)
2226 {
2227 struct com_rm_action_data *crd = data;
2228 int ret;
2229
2230 if (crd->flags & RM_FLAG_VERBOSE) {
2231 ret = para_printf(&crd->pb, "removing %s\n", name);
2232 if (ret < 0)
2233 return ret;
2234 }
2235 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2236 ret = osl(osl_del_row(audio_file_table, row));
2237 if (ret < 0)
2238 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2239 return ret;
2240 }
2241
2242 static void com_rm_callback(int fd, const struct osl_object *query)
2243 {
2244 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2245 .pb = {
2246 .max_size = shm_get_shmmax(),
2247 .private_data = &fd,
2248 .max_size_handler = afs_max_size_handler
2249 }
2250 };
2251 int ret;
2252 struct pattern_match_data pmd = {
2253 .table = audio_file_table,
2254 .loop_col_num = AFTCOL_HASH,
2255 .match_col_num = AFTCOL_PATH,
2256 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2257 .size = query->size - sizeof(uint32_t)},
2258 .data = &crd,
2259 .action = remove_audio_file
2260 };
2261 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2262 pmd.fnmatch_flags |= FNM_PATHNAME;
2263 ret = for_each_matching_row(&pmd);
2264 if (ret < 0) {
2265 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2266 return;
2267 }
2268 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2269 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2270 else if (crd.flags & RM_FLAG_VERBOSE) {
2271 ret = para_printf(&crd.pb, "removed %u files\n",
2272 pmd.num_matches);
2273 }
2274 if (ret >= 0 && crd.pb.offset)
2275 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2276 free(crd.pb.buf);
2277 }
2278
2279 /* TODO options: -r (recursive) */
2280 int com_rm(struct command_context *cc)
2281 {
2282 uint32_t flags = 0;
2283 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2284 int i, ret;
2285
2286 for (i = 1; i < cc->argc; i++) {
2287 const char *arg = cc->argv[i];
2288 if (arg[0] != '-')
2289 break;
2290 if (!strcmp(arg, "--")) {
2291 i++;
2292 break;
2293 }
2294 if (!strcmp(arg, "-f")) {
2295 flags |= RM_FLAG_FORCE;
2296 continue;
2297 }
2298 if (!strcmp(arg, "-p")) {
2299 flags |= RM_FLAG_FNM_PATHNAME;
2300 continue;
2301 }
2302 if (!strcmp(arg, "-v")) {
2303 flags |= RM_FLAG_VERBOSE;
2304 continue;
2305 }
2306 break;
2307 }
2308 if (i >= cc->argc)
2309 return -E_AFT_SYNTAX;
2310 ret = send_option_arg_callback_request(&query, cc->argc - i,
2311 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2312 if (ret < 0)
2313 send_strerror(cc, -ret);
2314 return ret;
2315 }
2316
2317 /**
2318 * Flags used by the cpsi command.
2319 *
2320 * \sa com_cpsi().
2321 */
2322 enum cpsi_flags {
2323 /** Whether the lyrics id should be copied. */
2324 CPSI_FLAG_COPY_LYRICS_ID = 1,
2325 /** Whether the image id should be copied. */
2326 CPSI_FLAG_COPY_IMAGE_ID = 2,
2327 /** Whether the lastplayed time should be copied. */
2328 CPSI_FLAG_COPY_LASTPLAYED = 4,
2329 /** Whether the numplayed count should be copied. */
2330 CPSI_FLAG_COPY_NUMPLAYED = 8,
2331 /** Whether the attributes should be copied. */
2332 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2333 /** Activates verbose mode. */
2334 CPSI_FLAG_VERBOSE = 32,
2335 };
2336
2337 /** Data passed to the action handler of com_cpsi(). */
2338 struct cpsi_action_data {
2339 /** command line flags (see \ref cpsi_flags). */
2340 unsigned flags;
2341 /** Message buffer. */
2342 struct para_buffer pb;
2343 /** Values are copied from here. */
2344 struct afs_info source_afsi;
2345 };
2346
2347 static int copy_selector_info(__a_unused struct osl_table *table,
2348 struct osl_row *row, const char *name, void *data)
2349 {
2350 struct cpsi_action_data *cad = data;
2351 struct osl_object target_afsi_obj;
2352 int ret;
2353 struct afs_info old_afsi, target_afsi;
2354 struct afsi_change_event_data aced;
2355
2356 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2357 if (ret < 0)
2358 return ret;
2359 load_afsi(&target_afsi, &target_afsi_obj);
2360 old_afsi = target_afsi;
2361 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2362 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2363 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2364 target_afsi.image_id = cad->source_afsi.image_id;
2365 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2366 target_afsi.last_played = cad->source_afsi.last_played;
2367 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2368 target_afsi.num_played = cad->source_afsi.num_played;
2369 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2370 target_afsi.attributes = cad->source_afsi.attributes;
2371 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2372 if (cad->flags & CPSI_FLAG_VERBOSE) {
2373 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2374 if (ret < 0)
2375 return ret;
2376 }
2377 aced.aft_row = row;
2378 aced.old_afsi = &old_afsi;
2379 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2380 return 1;
2381 }
2382
2383 static void com_cpsi_callback(int fd, const struct osl_object *query)
2384 {
2385 struct cpsi_action_data cad = {
2386 .flags = *(unsigned *)query->data,
2387 .pb = {
2388 .max_size = shm_get_shmmax(),
2389 .private_data = &fd,
2390 .max_size_handler = afs_max_size_handler
2391 }
2392 };
2393 int ret;
2394 char *source_path = (char *)query->data + sizeof(cad.flags);
2395 struct pattern_match_data pmd = {
2396 .table = audio_file_table,
2397 .loop_col_num = AFTCOL_HASH,
2398 .match_col_num = AFTCOL_PATH,
2399 .patterns = {.data = source_path + strlen(source_path) + 1,
2400 .size = query->size - sizeof(cad.flags)
2401 - strlen(source_path) - 1},
2402 .data = &cad,
2403 .action = copy_selector_info
2404 };
2405
2406 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2407 if (ret < 0)
2408 goto out;
2409 ret = for_each_matching_row(&pmd);
2410 out:
2411 if (ret < 0)
2412 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2413 else if (pmd.num_matches > 0) {
2414 if (cad.flags & CPSI_FLAG_VERBOSE)
2415 para_printf(&cad.pb, "copied requested afsi from %s "
2416 "to %u files\n", source_path, pmd.num_matches);
2417 } else
2418 para_printf(&cad.pb, "no matches - nothing copied\n");
2419 if (cad.pb.offset)
2420 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2421 free(cad.pb.buf);
2422 }
2423
2424 int com_cpsi(struct command_context *cc)
2425 {
2426 unsigned flags = 0;
2427 int i, ret;
2428 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2429
2430 for (i = 1; i < cc->argc; i++) {
2431 const char *arg = cc->argv[i];
2432 if (arg[0] != '-')
2433 break;
2434 if (!strcmp(arg, "--")) {
2435 i++;
2436 break;
2437 }
2438 if (!strcmp(arg, "-y")) {
2439 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2440 continue;
2441 }
2442 if (!strcmp(arg, "-i")) {
2443 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2444 continue;
2445 }
2446 if (!strcmp(arg, "-l")) {
2447 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2448 continue;
2449 }
2450 if (!strcmp(arg, "-n")) {
2451 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2452 continue;
2453 }
2454 if (!strcmp(arg, "-a")) {
2455 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2456 continue;
2457 }
2458 if (!strcmp(arg, "-v")) {
2459 flags |= CPSI_FLAG_VERBOSE;
2460 continue;
2461 }
2462 break;
2463 }
2464 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2465 return -E_AFT_SYNTAX;
2466 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2467 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2468 ret = send_option_arg_callback_request(&options, cc->argc - i,
2469 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2470 if (ret < 0)
2471 send_strerror(cc, -ret);
2472 return ret;
2473 }
2474
2475 struct change_atts_data {
2476 uint64_t add_mask, del_mask;
2477 struct para_buffer pb;
2478 };
2479
2480 static int change_atts(__a_unused struct osl_table *table,
2481 struct osl_row *row, __a_unused const char *name, void *data)
2482 {
2483 int ret;
2484 struct osl_object obj;
2485 struct afs_info old_afsi, new_afsi;
2486 struct afsi_change_event_data aced = {
2487 .aft_row = row,
2488 .old_afsi = &old_afsi
2489 };
2490 struct change_atts_data *cad = data;
2491
2492 ret = get_afsi_object_of_row(row, &obj);
2493 if (ret < 0)
2494 return ret;
2495 ret = load_afsi(&old_afsi, &obj);
2496 if (ret < 0)
2497 return ret;
2498 new_afsi = old_afsi;
2499 new_afsi.attributes |= cad->add_mask;
2500 new_afsi.attributes &= ~cad->del_mask;
2501 save_afsi(&new_afsi, &obj); /* in-place update */
2502 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2503 return 1;
2504 }
2505
2506 static void com_setatt_callback(int fd, const struct osl_object *query)
2507 {
2508 char *p;
2509 int ret;
2510 size_t len;
2511 struct change_atts_data cad = {
2512 .pb = {
2513 .max_size = shm_get_shmmax(),
2514 .max_size_handler = afs_max_size_handler,
2515 .private_data = &(struct afs_max_size_handler_data) {
2516 .fd = fd,
2517 .band = SBD_OUTPUT
2518 }
2519 }
2520 };
2521 struct pattern_match_data pmd = {
2522 .table = audio_file_table,
2523 .loop_col_num = AFTCOL_HASH,
2524 .match_col_num = AFTCOL_PATH,
2525 .pm_flags = PM_SKIP_EMPTY_NAME,
2526 .data = &cad,
2527 .action = change_atts
2528 };
2529
2530 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2531 char c;
2532 unsigned char bitnum;
2533
2534 len = strlen(p);
2535 ret = -E_ATTR_SYNTAX;
2536 if (len == 0)
2537 goto out;
2538 c = p[len - 1];
2539 if (c != '+' && c != '-')
2540 break;
2541 p[len - 1] = '\0';
2542 ret = get_attribute_bitnum_by_name(p, &bitnum);
2543 if (ret < 0)
2544 goto out;
2545 if (c == '+')
2546 cad.add_mask |= (1UL << bitnum);
2547 else
2548 cad.del_mask |= (1UL << bitnum);
2549 }
2550 ret = -E_ATTR_SYNTAX;
2551 if (!cad.add_mask && !cad.del_mask)
2552 goto out;
2553 pmd.patterns.data = p;
2554 assert(p < (char *)query->data + query->size);
2555 pmd.patterns.size = (char *)query->data + query->size - p;
2556 ret = for_each_matching_row(&pmd);
2557 if (ret < 0)
2558 goto out;
2559 if (pmd.num_matches == 0)
2560 para_printf(&cad.pb, "no matches\n");
2561 out:
2562 if (ret < 0)
2563 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2564 if (cad.pb.offset)
2565 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2566 free(cad.pb.buf);
2567 }
2568
2569 int com_setatt(struct command_context *cc)
2570 {
2571 if (cc->argc < 3)
2572 return -E_ATTR_SYNTAX;
2573 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2574 com_setatt_callback, afs_cb_result_handler, cc);
2575 }
2576
2577 static void afs_stat_callback(int fd, const struct osl_object *query)
2578 {
2579 int *parser_friendly = query->data;
2580 char *buf = *parser_friendly?
2581 parser_friendly_status_items : status_items;
2582
2583 if (!buf)
2584 return;
2585 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2586 }
2587
2588 /**
2589 * Get the current afs status items from the afs process and send it.
2590 *
2591 * \param cc The command context, used e.g. for data encryption.
2592 * \param parser_friendly Whether parser-friendly output format should be used.
2593 *
2594 * As the contents of the afs status items change in time and the command
2595 * handler only has a COW version created at fork time, it can not send
2596 * up-to-date afs status items directly. Therefore the usual callback mechanism
2597 * is used to pass the status items from the afs process to the command handler
2598 * via a shared memory area and a pipe.
2599 *
2600 * \return The return value of the underlying call to \ref send_callback_request().
2601 */
2602 int send_afs_status(struct command_context *cc, int parser_friendly)
2603 {
2604 struct osl_object query = {.data = &parser_friendly,
2605 .size = sizeof(parser_friendly)};
2606
2607 return send_callback_request(afs_stat_callback, &query,
2608 afs_cb_result_handler, cc);
2609 }
2610
2611 /* TODO: optionally fix problems by removing offending rows */
2612 static int check_audio_file(struct osl_row *row, void *data)
2613 {
2614 char *path;
2615 struct para_buffer *pb = data;
2616 struct stat statbuf;
2617 int ret = get_audio_file_path_of_row(row, &path);
2618 struct afs_info afsi;
2619 char *blob_name;
2620
2621 if (ret < 0)
2622 return para_printf(pb, "%s\n", para_strerror(-ret));
2623 if (stat(path, &statbuf) < 0) {
2624 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2625 if (ret < 0)
2626 return ret;
2627 } else {
2628 if (!S_ISREG(statbuf.st_mode)) {
2629 ret = para_printf(pb, "%s: not a regular file\n", path);
2630 if (ret < 0)
2631 return ret;
2632 }
2633 }
2634 ret = get_afsi_of_row(row, &afsi);
2635 if (ret < 0)
2636 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2637 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2638 if (ret < 0) {
2639 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2640 para_strerror(-ret));
2641 if (ret < 0)
2642 return ret;
2643 }
2644 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2645 if (ret < 0)
2646 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2647 para_strerror(-ret));
2648 return ret;
2649 }
2650
2651 /**
2652 * Check the audio file table for inconsistencies.
2653 *
2654 * \param fd The afs socket.
2655 * \param query Unused.
2656 *
2657 * This function always succeeds.
2658 *
2659 * \sa com_check().
2660 */
2661 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2662 {
2663 struct para_buffer pb = {
2664 .max_size = shm_get_shmmax(),
2665 .private_data = &(struct afs_max_size_handler_data) {
2666 .fd = fd,
2667 .band = SBD_OUTPUT
2668 },
2669 .max_size_handler = afs_max_size_handler
2670 };
2671 int ret = para_printf(&pb, "checking audio file table...\n");
2672
2673 if (ret < 0)
2674 return;
2675 audio_file_loop(&pb, check_audio_file);
2676 if (pb.offset)
2677 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2678 free(pb.buf);
2679 }
2680
2681 /**
2682 * Close the audio file table.
2683 *
2684 * \param flags Usual flags that are passed to osl_close_table().
2685 *
2686 * \sa osl_close_table().
2687 */
2688 static void aft_close(void)
2689 {
2690 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2691 audio_file_table = NULL;
2692 }
2693
2694 /**
2695 * Open the audio file table.
2696 *
2697 * \param dir The database directory.
2698 *
2699 * \return Standard.
2700 *
2701 * \sa osl_open_table().
2702 */
2703 static int aft_open(const char *dir)
2704 {
2705 int ret;
2706
2707 audio_file_table_desc.dir = dir;
2708 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2709 if (ret >= 0) {
2710 unsigned num;
2711 osl_get_num_rows(audio_file_table, &num);
2712 PARA_INFO_LOG("audio file table contains %d files\n", num);
2713 return ret;
2714 }
2715 PARA_INFO_LOG("failed to open audio file table\n");
2716 audio_file_table = NULL;
2717 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2718 return 1;
2719 return ret;
2720 }
2721
2722 static int aft_create(const char *dir)
2723 {
2724 audio_file_table_desc.dir = dir;
2725 return osl(osl_create_table(&audio_file_table_desc));
2726 }
2727
2728 static int clear_attribute(struct osl_row *row, void *data)
2729 {
2730 struct rmatt_event_data *red = data;
2731 struct afs_info afsi;
2732 struct osl_object obj;
2733 int ret = get_afsi_object_of_row(row, &obj);
2734 uint64_t mask = ~(1ULL << red->bitnum);
2735
2736 if (ret < 0)
2737 return ret;
2738 ret = load_afsi(&afsi, &obj);
2739 if (ret < 0)
2740 return ret;
2741 afsi.attributes &= mask;
2742 save_afsi(&afsi, &obj);
2743 return 1;
2744 }
2745
2746 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2747 void *data)
2748 {
2749 int ret;
2750
2751 switch (event) {
2752 case ATTRIBUTE_REMOVE: {
2753 const struct rmatt_event_data *red = data;
2754 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2755 "entries in the audio file table\n", red->name,
2756 red->bitnum);
2757 if (ret < 0)
2758 return ret;
2759 return audio_file_loop(data, clear_attribute);
2760 } case AFSI_CHANGE: {
2761 struct afsi_change_event_data *aced = data;
2762 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2763 if (aced->aft_row != current_aft_row)
2764 return 0;
2765 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2766 if (ret < 0)
2767 return ret;
2768 status_item_ls_data.afsi.last_played = old_last_played;
2769 make_status_items();
2770 return 1;
2771 } case AFHI_CHANGE: {
2772 if (data != current_aft_row)
2773 return 0;
2774 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2775 if (ret < 0)
2776 return ret;
2777 make_status_items();
2778 return 1;
2779 } default:
2780 return 0;
2781 }
2782 }
2783
2784 /**
2785 * Initialize the audio file table.
2786 *
2787 * \param t Pointer to the structure to be initialized.
2788 */
2789 void aft_init(struct afs_table *t)
2790 {
2791 t->open = aft_open;
2792 t->close = aft_close;
2793 t->create = aft_create;
2794 t->event_handler = aft_event_handler;
2795 }