aft: Update mtime and file size on afhi changes.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14
15 #include "para.h"
16 #include "error.h"
17 #include "crypt.h"
18 #include "string.h"
19 #include "afh.h"
20 #include "afs.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24 #include "sideband.h"
25 #include "command.h"
26
27 static struct osl_table *audio_file_table;
28 static char *status_items;
29 static char *parser_friendly_status_items;
30
31 /** The different sorting methods of the ls command. */
32 enum ls_sorting_method {
33 /** -sp (default) */
34 LS_SORT_BY_PATH,
35 /** -ss */
36 LS_SORT_BY_SCORE,
37 /** -sl */
38 LS_SORT_BY_LAST_PLAYED,
39 /** -sn */
40 LS_SORT_BY_NUM_PLAYED,
41 /** -sf */
42 LS_SORT_BY_FREQUENCY,
43 /** -sc */
44 LS_SORT_BY_CHANNELS,
45 /** -si */
46 LS_SORT_BY_IMAGE_ID,
47 /** -sy */
48 LS_SORT_BY_LYRICS_ID,
49 /** -sb */
50 LS_SORT_BY_BITRATE,
51 /** -sd */
52 LS_SORT_BY_DURATION,
53 /** -sa */
54 LS_SORT_BY_AUDIO_FORMAT,
55 /** -sh */
56 LS_SORT_BY_HASH,
57 };
58
59 /** The different listing modes of the ls command. */
60 enum ls_listing_mode {
61 /** Default listing mode. */
62 LS_MODE_SHORT,
63 /** -l or -ll */
64 LS_MODE_LONG,
65 /** -lv */
66 LS_MODE_VERBOSE,
67 /** -lm */
68 LS_MODE_MBOX,
69 /** -lc */
70 LS_MODE_CHUNKS,
71 /** -lp */
72 LS_MODE_PARSER,
73 };
74
75 /* Data about one audio file. Needed for ls and stat output. */
76 struct ls_data {
77 /* Usual audio format handler information. */
78 struct afh_info afhi;
79 /* Audio file selector information. */
80 struct afs_info afsi;
81 /* The full path of the audio file. */
82 char *path;
83 /* The score value (if -a was given). */
84 long score;
85 /* The hash value of the audio file data. */
86 unsigned char *hash;
87 };
88
89 /** The flags accepted by the ls command. */
90 enum ls_flags {
91 /** -p */
92 LS_FLAG_FULL_PATH = 1,
93 /** -a */
94 LS_FLAG_ADMISSIBLE_ONLY = 2,
95 /** -r */
96 LS_FLAG_REVERSE = 4,
97 /** -d */
98 LS_FLAG_UNIXDATE = 8,
99 };
100
101 /**
102 * The size of the individual output fields of the ls command.
103 *
104 * These depend on the content being listed. For example, if each listed file
105 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
106 * is set to hh:mm:ss.
107 */
108 struct ls_widths {
109 /** size of the score field. */
110 unsigned short score_width;
111 /** size of the image id field. */
112 unsigned short image_id_width;
113 /** size of the lyrics id field. */
114 unsigned short lyrics_id_width;
115 /** size of the bitrate field. */
116 unsigned short bitrate_width;
117 /** size of the frequency field. */
118 unsigned short frequency_width;
119 /** size of the duration field. */
120 unsigned short duration_width;
121 /** size of the num played field. */
122 unsigned short num_played_width;
123 /** size of the amp field. */
124 unsigned short amp_width;
125 /** size of the audio format field. */
126 unsigned short audio_format_width;
127 };
128
129 /** Data passed from the ls command handler to its callback function. */
130 struct ls_options {
131 /** The given command line flags. */
132 unsigned flags;
133 /** The sorting method given at the command line. */
134 enum ls_sorting_method sorting;
135 /** The given listing mode (short, long, verbose, mbox). */
136 enum ls_listing_mode mode;
137 /** The arguments passed to the ls command. */
138 char **patterns;
139 /** Number of non-option arguments. */
140 int num_patterns;
141 /** Used for long listing mode to align the output fields. */
142 struct ls_widths widths;
143 /** Size of the \a data array. */
144 uint32_t array_size;
145 /** Number of used entries in the data array. */
146 uint32_t num_matching_paths;
147 /** Array of matching entries. */
148 struct ls_data *data;
149 /** Used to sort the array. */
150 struct ls_data **data_ptr;
151 };
152
153 /**
154 * Describes the layout of the mmapped-afs info struct.
155 *
156 * \sa struct afs_info.
157 */
158 enum afsi_offsets {
159 /** Where .last_played is stored. */
160 AFSI_LAST_PLAYED_OFFSET = 0,
161 /** Storage position of the attributes bitmap. */
162 AFSI_ATTRIBUTES_OFFSET = 8,
163 /** Storage position of the .num_played field. */
164 AFSI_NUM_PLAYED_OFFSET = 16,
165 /** Storage position of the .image_id field. */
166 AFSI_IMAGE_ID_OFFSET = 20,
167 /** Storage position of the .lyrics_id field. */
168 AFSI_LYRICS_ID_OFFSET = 24,
169 /** Storage position of the .audio_format_id field. */
170 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
171 /** Storage position of the amplification field. */
172 AFSI_AMP_OFFSET = 29,
173 /** 2 bytes reserved space for future usage. */
174 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
175 /** On-disk storage space needed. */
176 AFSI_SIZE = 32
177 };
178
179 /*
180 * Convert a struct afs_info to an osl object.
181 *
182 * \param afsi Pointer to the audio file info to be converted.
183 * \param obj Result pointer.
184 *
185 * \sa load_afsi().
186 */
187 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
188 {
189 char *buf = obj->data;
190
191 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
192 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
193 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
194 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
195 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
196 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
197 afsi->audio_format_id);
198 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
199 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
200 }
201
202 /*
203 * Get the audio file selector info struct stored in an osl object.
204 *
205 * \param afsi Points to the audio_file info structure to be filled in.
206 * \param obj The osl object holding the data.
207 *
208 * \return Standard.
209 *
210 * \sa save_afsi().
211 */
212 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
213 {
214 char *buf = obj->data;
215 if (obj->size < AFSI_SIZE)
216 return -E_BAD_AFSI;
217 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
218 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
219 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
220 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
221 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
222 afsi->audio_format_id = read_u8(buf +
223 AFSI_AUDIO_FORMAT_ID_OFFSET);
224 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
225 return 1;
226 }
227
228 /** The columns of the audio file table. */
229 enum audio_file_table_columns {
230 /** The hash on the content of the audio file. */
231 AFTCOL_HASH,
232 /** The full path in the filesystem. */
233 AFTCOL_PATH,
234 /** The audio file selector info. */
235 AFTCOL_AFSI,
236 /** The audio format handler info. */
237 AFTCOL_AFHI,
238 /** The chunk table info and the chunk table of the audio file. */
239 AFTCOL_CHUNKS,
240 /** The number of columns of this table. */
241 NUM_AFT_COLUMNS
242 };
243
244 /**
245 * Compare two osl objects pointing to hash values.
246 *
247 * \param obj1 Pointer to the first hash object.
248 * \param obj2 Pointer to the second hash object.
249 *
250 * \return The values required for an osl compare function.
251 *
252 * \sa osl_compare_func, uint32_compare().
253 */
254 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
255 {
256 return hash_compare((unsigned char *)obj1->data, (unsigned char *)obj2->data);
257 }
258
259 static struct osl_column_description aft_cols[] = {
260 [AFTCOL_HASH] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
263 .name = "hash",
264 .compare_function = aft_hash_compare,
265 .data_size = HASH_SIZE
266 },
267 [AFTCOL_PATH] = {
268 .storage_type = OSL_MAPPED_STORAGE,
269 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
270 .name = "path",
271 .compare_function = string_compare,
272 },
273 [AFTCOL_AFSI] = {
274 .storage_type = OSL_MAPPED_STORAGE,
275 .storage_flags = OSL_FIXED_SIZE,
276 .name = "afs_info",
277 .data_size = AFSI_SIZE
278 },
279 [AFTCOL_AFHI] = {
280 .storage_type = OSL_MAPPED_STORAGE,
281 .name = "afh_info",
282 },
283 [AFTCOL_CHUNKS] = {
284 .storage_type = OSL_DISK_STORAGE,
285 .name = "chunks",
286 }
287 };
288
289 static struct osl_table_description audio_file_table_desc = {
290 .name = "audio_files",
291 .num_columns = NUM_AFT_COLUMNS,
292 .flags = OSL_LARGE_TABLE,
293 .column_descriptions = aft_cols
294 };
295
296 /* We don't want dot or dot-dot anywhere. */
297 static int verify_dotfile(const char *rest)
298 {
299 /*
300 * The first character was '.', but that has already been discarded, we
301 * now test the rest.
302 */
303 switch (*rest) {
304 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
305 return -1;
306 case '.': /* path start with /foo/.. */
307 if (rest[1] == '\0' || rest[1] == '/')
308 return -1; /* /foo/.. or /foo/../bar are not ok */
309 /* /foo/..bar is ok */
310 }
311 return 1;
312 }
313
314 /*
315 * We fundamentally don't like some paths: We don't want double slashes or
316 * slashes at the end that can make pathnames ambiguous.
317 */
318 static int verify_path(const char *orig_path, char **resolved_path)
319 {
320 char c;
321 size_t len;
322 char *path;
323
324 if (*orig_path != '/') /* we only accept absolute paths */
325 return -E_BAD_PATH;
326 len = strlen(orig_path);
327 *resolved_path = para_strdup(orig_path);
328 path = *resolved_path;
329 while (len > 1 && path[--len] == '/')
330 path[len] = '\0'; /* remove slash at the end */
331 c = *path++;
332 while (c) {
333 if (c == '/') {
334 c = *path++;
335 switch (c) {
336 case '/': /* double slash */
337 goto bad_path;
338 case '.':
339 if (verify_dotfile(path) < 0)
340 goto bad_path;
341 default:
342 continue;
343 }
344 }
345 c = *path++;
346 }
347 return 1;
348 bad_path:
349 free(*resolved_path);
350 return -E_BAD_PATH;
351 }
352
353 /** The on-disk layout of a afhi struct. */
354 enum afhi_offsets {
355 /** Where the number of seconds is stored. */
356 AFHI_SECONDS_TOTAL_OFFSET = 0,
357 /** Position of the bitrate. */
358 AFHI_BITRATE_OFFSET = 4,
359 /** Position of the frequency. */
360 AFHI_FREQUENCY_OFFSET = 8,
361 /** Was: Location of the audio file header. */
362 AFHI_UNUSED1_OFFSET = 12,
363 /* Length of the audio file header. Zero means: No header. */
364 AFHI_HEADER_LEN_OFFSET = 16,
365 /** The total number of chunks (4 bytes). */
366 CHUNKS_TOTAL_OFFSET = 20,
367 /** The length of the audio file header (4 bytes). */
368 HEADER_LEN_OFFSET = 24,
369 /** Was: The start of the audio file header (4 bytes). */
370 AFHI_UNUSED2_OFFSET = 28,
371 /** The seconds part of the chunk time (4 bytes). */
372 CHUNK_TV_TV_SEC_OFFSET = 32,
373 /** The microseconds part of the chunk time (4 bytes). */
374 CHUNK_TV_TV_USEC_OFFSET = 36,
375 /** Number of channels is stored here. (1 byte) */
376 AFHI_CHANNELS_OFFSET = 40,
377 /** The tag info position. */
378 AFHI_INFO_STRING_OFFSET = 41,
379 /** Minimal on-disk size of a valid afhi struct. */
380 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
381 };
382
383 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
384 {
385 if (!afhi)
386 return 0;
387 return MIN_AFHI_SIZE
388 + strlen(afhi->techinfo)
389 + strlen(afhi->tags.artist)
390 + strlen(afhi->tags.title)
391 + strlen(afhi->tags.year)
392 + strlen(afhi->tags.album)
393 + strlen(afhi->tags.comment);
394 }
395
396 static void save_afhi(struct afh_info *afhi, char *buf)
397 {
398 char *p;
399
400 if (!afhi)
401 return;
402 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
403 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
404 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
405 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
406 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
407 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
408 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
409 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
410 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
411 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
412 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
413 p = buf + AFHI_INFO_STRING_OFFSET;
414 /* The sprintf's below are OK as our caller made sure that buf is large enough */
415 p += sprintf(p, "%s", afhi->techinfo) + 1;
416 p += sprintf(p, "%s", afhi->tags.artist) + 1;
417 p += sprintf(p, "%s", afhi->tags.title) + 1;
418 p += sprintf(p, "%s", afhi->tags.year) + 1;
419 p += sprintf(p, "%s", afhi->tags.album) + 1;
420 sprintf(p, "%s", afhi->tags.comment);
421 }
422
423 static void load_afhi(const char *buf, struct afh_info *afhi)
424 {
425 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
426 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
427 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
428 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
429 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
430 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
431 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
432 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
433 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
434 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
435 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
436 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
437 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
438 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
439 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
440 }
441
442 static unsigned sizeof_chunk_table(struct afh_info *afhi)
443 {
444 if (!afhi)
445 return 0;
446 return 4 * (afhi->chunks_total + 1);
447 }
448
449 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
450 {
451 int i;
452 uint32_t max = 0, old = 0;
453
454 for (i = 0; i <= afhi->chunks_total; i++) {
455 uint32_t val = afhi->chunk_table[i];
456 write_u32(buf + 4 * i, val);
457 /*
458 * If the first chunk is the header, do not consider it for the
459 * calculation of the largest chunk size.
460 */
461 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
462 old = val;
463 continue;
464 }
465 max = PARA_MAX(max, val - old);
466 old = val;
467 }
468 return max;
469 }
470
471 static void load_chunk_table(struct afh_info *afhi, char *buf)
472 {
473 int i;
474
475 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
476 for (i = 0; i <= afhi->chunks_total; i++)
477 afhi->chunk_table[i] = read_u32(buf + 4 * i);
478 }
479
480 /**
481 * Get the row of the audio file table corresponding to the given path.
482 *
483 * \param path The full path of the audio file.
484 * \param row Result pointer.
485 *
486 * \return Standard.
487 */
488 int aft_get_row_of_path(const char *path, struct osl_row **row)
489 {
490 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
491
492 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
493 }
494
495 /**
496 * Get the row of the audio file table corresponding to the given hash value.
497 *
498 * \param hash The hash value of the desired audio file.
499 * \param row Result pointer.
500 *
501 * \return Standard.
502 */
503 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
504 {
505 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
506 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
507 }
508
509 /*
510 * Get the audio file selector info object of a row.
511 *
512 * \param row Pointer to a row in the audio file table.
513 * \param obj Result pointer.
514 *
515 * \return Standard.
516 */
517 static int get_afsi_object_of_row(const struct osl_row *row,
518 struct osl_object *obj)
519 {
520 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
521 }
522
523 /**
524 * Get the osl object holding the audio file selector info, given a path.
525 *
526 *
527 * \param path The full path of the audio file.
528 * \param obj Result pointer.
529 *
530 * \return Positive on success, negative on errors.
531 */
532 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
533 {
534 struct osl_row *row;
535 int ret = aft_get_row_of_path(path, &row);
536 if (ret < 0)
537 return ret;
538 return get_afsi_object_of_row(row, obj);
539 }
540
541 /**
542 * Get the audio file selector info, given a row of the audio file table.
543 *
544 * \param row Pointer to a row in the audio file table.
545 * \param afsi Result pointer.
546 *
547 * \return Positive on success, negative on errors.
548 */
549 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
550 {
551 struct osl_object obj;
552 int ret = get_afsi_object_of_row(row, &obj);
553 if (ret < 0)
554 return ret;
555 return load_afsi(afsi, &obj);
556 }
557
558 /*
559 * Get the audio file selector info, given the path of an audio table.
560 *
561 * \param path The full path of the audio file.
562 * \param afsi Result pointer.
563 *
564 * \return Standard.
565 */
566 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
567 {
568 struct osl_object obj;
569 int ret = get_afsi_object_of_path(path, &obj);
570 if (ret < 0)
571 return ret;
572 return load_afsi(afsi, &obj);
573 }
574
575 /**
576 * Get the path of an audio file, given a row of the audio file table.
577 *
578 * \param row Pointer to a row in the audio file table.
579 * \param path Result pointer.
580 *
581 * The result is a pointer to mmapped data. The caller must not attempt
582 * to free it.
583 *
584 * \return Standard.
585 */
586 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
587 {
588 struct osl_object path_obj;
589 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
590 &path_obj));
591 if (ret < 0)
592 return ret;
593 *path = path_obj.data;
594 return 1;
595 }
596
597 /**
598 * Get the object containing the hash value of an audio file, given a row.
599 *
600 * \param row Pointer to a row of the audio file table.
601 * \param obj Result pointer.
602 *
603 * \return The return value of the underlying call to osl_get_object().
604 *
605 * \sa get_hash_of_row().
606 */
607 static int get_hash_object_of_aft_row(const struct osl_row *row,
608 struct osl_object *obj)
609 {
610 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
611 }
612
613 /**
614 * Get the hash value of an audio file, given a row of the audio file table.
615 *
616 * \param row Pointer to a row of the audio file table.
617 * \param hash Result pointer.
618 *
619 * \a hash points to mapped data and must not be freed by the caller.
620 *
621 * \return The return value of the underlying call to
622 * get_hash_object_of_aft_row().
623 */
624 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
625 {
626 struct osl_object obj;
627 int ret = get_hash_object_of_aft_row(row, &obj);
628
629 if (ret < 0)
630 return ret;
631 *hash = obj.data;
632 return 1;
633 }
634
635 /**
636 * Get the audio format handler info, given a row of the audio file table.
637 *
638 * \param row Pointer to a row of the audio file table.
639 * \param afhi Result pointer.
640 *
641 * \return The return value of the underlying call to osl_get_object().
642 *
643 * \sa get_chunk_table_of_row().
644 */
645 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
646 {
647 struct osl_object obj;
648 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
649 &obj));
650 if (ret < 0)
651 return ret;
652 load_afhi(obj.data, afhi);
653 return 1;
654 }
655
656 /* returns shmid on success */
657 static int save_afd(struct audio_file_data *afd)
658 {
659 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
660 int shmid, ret = shm_new(size);
661 void *shm_afd;
662 char *buf;
663
664 if (ret < 0)
665 return ret;
666 shmid = ret;
667 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
668 if (ret < 0)
669 goto err;
670 buf = shm_afd;
671 buf += sizeof(*afd);
672 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
673 *(struct audio_file_data *)shm_afd = *afd;
674 shm_detach(shm_afd);
675 return shmid;
676 err:
677 shm_destroy(shmid);
678 return ret;
679 }
680
681 /**
682 * Extract a afd stored in a shared memory area.
683 *
684 * Attach the shared memory area given by \a shmid, load the audio file data
685 * stored therein and detach the area afterwards. Called by vss, after
686 * receiving a positive response to the request for the next audio file.
687 +
688 * \param shmid The identifier of the shared memory area containing the afd.
689 * \param afd Result pointer.
690 *
691 * \return Standard.
692 */
693 int load_afd(int shmid, struct audio_file_data *afd)
694 {
695 void *shm_afd;
696 char *buf;
697 int ret;
698
699 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
700 if (ret < 0)
701 return ret;
702 *afd = *(struct audio_file_data *)shm_afd;
703 buf = shm_afd;
704 buf += sizeof(*afd);
705 load_chunk_table(&afd->afhi, buf);
706 shm_detach(shm_afd);
707 return 1;
708 }
709
710 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
711 time_t current_time, enum ls_listing_mode lm)
712 {
713 struct tm t;
714
715 if (!localtime_r((time_t *)seconds, &t))
716 return -E_LOCALTIME;
717 if (lm == LS_MODE_MBOX) {
718 if (!strftime(buf, size, "%c", &t))
719 return -E_STRFTIME;
720 return 1;
721 }
722 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
723 if (!strftime(buf, size, "%b %e %k:%M", &t))
724 return -E_STRFTIME;
725 return 1;
726 }
727 if (!strftime(buf, size, "%b %e %Y", &t))
728 return -E_STRFTIME;
729 return 1;
730 }
731
732 /** Compute the number of (decimal) digits of a number. */
733 #define GET_NUM_DIGITS(x, num) { \
734 typeof((x)) _tmp = PARA_ABS(x); \
735 *num = 1; \
736 if ((_tmp)) \
737 while ((_tmp) > 9) { \
738 (_tmp) /= 10; \
739 (*num)++; \
740 } \
741 }
742
743 __a_const static short unsigned get_duration_width(int seconds)
744 {
745 short unsigned width;
746 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
747
748 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
749 return 4 + (mins > 9);
750 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
751 GET_NUM_DIGITS(hours, &width);
752 return width + 6;
753 }
754
755 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
756 {
757 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
758 short unsigned max_width;
759
760 if (!hours) { /* m:ss or mm:ss */
761 max_width = opts->mode == LS_MODE_LONG?
762 opts->widths.duration_width : 4;
763 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
764 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
765 max_width = opts->mode == LS_MODE_LONG?
766 opts->widths.duration_width : 7;
767 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
768 seconds % 60);
769 }
770 }
771
772 static int write_attribute_items(struct para_buffer *b,
773 const char *att_bitmap, struct afs_info *afsi)
774 {
775 char *att_text;
776 int ret;
777
778 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
779 if (ret < 0)
780 return ret;
781 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
782 if (ret < 0)
783 return ret;
784 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
785 free(att_text);
786 return ret;
787 }
788
789 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
790 {
791 char *lyrics_name;
792 int ret;
793
794 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
795 if (ret < 0)
796 return ret;
797 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
798 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
799 lyrics_name : "(none)");
800 }
801
802 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
803 {
804 char *image_name;
805 int ret;
806
807 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
808 if (ret < 0)
809 return ret;
810 img_get_name_by_id(afsi->image_id, &image_name);
811 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
812 image_name : "(none)");
813 }
814
815 static int write_filename_items(struct para_buffer *b, const char *path,
816 unsigned flags)
817 {
818 char *val;
819 int ret;
820
821 if (!(flags & LS_FLAG_FULL_PATH))
822 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
823 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
824 if (ret < 0)
825 return ret;
826 val = para_basename(path);
827 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
828 if (ret < 0)
829 return ret;
830 val = para_dirname(path);
831 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
832 free(val);
833 return ret;
834 }
835
836 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
837 {
838 struct osl_object chunk_table_obj;
839 struct osl_row *aft_row;
840 int ret, i;
841 char *buf;
842
843 ret = aft_get_row_of_hash(d->hash, &aft_row);
844 if (ret < 0)
845 return ret;
846 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
847 AFTCOL_CHUNKS, &chunk_table_obj));
848 if (ret < 0)
849 return ret;
850 ret = para_printf(b, "%s\n"
851 "chunk_time: %lu:%lu\nchunk_offsets: ",
852 d->path,
853 (long unsigned) d->afhi.chunk_tv.tv_sec,
854 (long unsigned) d->afhi.chunk_tv.tv_usec
855 );
856 if (ret < 0)
857 goto out;
858 buf = chunk_table_obj.data;
859 for (i = 0; i <= d->afhi.chunks_total; i++) {
860 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
861 if (ret < 0)
862 goto out;
863 }
864 ret = para_printf(b, "\n");
865 out:
866 osl_close_disk_object(&chunk_table_obj);
867 return ret;
868 }
869
870 static int write_score(struct para_buffer *b, struct ls_data *d,
871 struct ls_options *opts)
872 {
873 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
874 return 0;
875 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
876 }
877
878 static int print_list_item(struct ls_data *d, struct ls_options *opts,
879 struct para_buffer *b, time_t current_time)
880 {
881 int ret;
882 char att_buf[65];
883 char last_played_time[30];
884 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
885 struct afs_info *afsi = &d->afsi;
886 struct afh_info *afhi = &d->afhi;
887 char asc_hash[2 * HASH_SIZE + 1];
888
889 if (opts->mode == LS_MODE_SHORT) {
890 ret = para_printf(b, "%s\n", d->path);
891 goto out;
892 }
893 if (opts->mode == LS_MODE_CHUNKS) {
894 ret = print_chunk_table(d, b);
895 goto out;
896 }
897 get_attribute_bitmap(&afsi->attributes, att_buf);
898 if (opts->flags & LS_FLAG_UNIXDATE)
899 sprintf(last_played_time, "%llu",
900 (long long unsigned)afsi->last_played);
901 else {
902 ret = get_local_time(&afsi->last_played, last_played_time,
903 sizeof(last_played_time), current_time, opts->mode);
904 if (ret < 0)
905 goto out;
906 }
907 get_duration_buf(afhi->seconds_total, duration_buf, opts);
908 if (opts->mode == LS_MODE_LONG) {
909 struct ls_widths *w = &opts->widths;
910 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
911 ret = para_printf(b, "%*li ",
912 opts->widths.score_width, d->score);
913 if (ret < 0)
914 goto out;
915 }
916 ret = para_printf(b,
917 "%s " /* attributes */
918 "%*u " /* amp */
919 "%*d " /* image_id */
920 "%*d " /* lyrics_id */
921 "%*d " /* bitrate */
922 "%*s " /* audio format */
923 "%*d " /* frequency */
924 "%d " /* channels */
925 "%s " /* duration */
926 "%*d " /* num_played */
927 "%s " /* last_played */
928 "%s\n", /* path */
929 att_buf,
930 w->amp_width, afsi->amp,
931 w->image_id_width, afsi->image_id,
932 w->lyrics_id_width, afsi->lyrics_id,
933 w->bitrate_width, afhi->bitrate,
934 w->audio_format_width,
935 audio_format_name(afsi->audio_format_id),
936 w->frequency_width, afhi->frequency,
937 afhi->channels,
938 duration_buf,
939 w->num_played_width, afsi->num_played,
940 last_played_time,
941 d->path
942 );
943 goto out;
944 }
945 if (opts->mode == LS_MODE_MBOX) {
946 const char *bn = para_basename(d->path);
947 ret = para_printf(b,
948 "From foo@localhost %s\n"
949 "Received: from\nTo: bar\nFrom: a\n"
950 "Subject: %s\n\n",
951 last_played_time,
952 bn? bn : "?");
953 if (ret < 0)
954 goto out;
955 }
956 ret = write_filename_items(b, d->path, opts->flags);
957 if (ret < 0)
958 goto out;
959 ret = write_score(b, d, opts);
960 if (ret < 0)
961 goto out;
962 ret = write_attribute_items(b, att_buf, afsi);
963 if (ret < 0)
964 goto out;
965 ret = write_image_items(b, afsi);
966 if (ret < 0)
967 goto out;
968 ret = write_lyrics_items(b, afsi);
969 if (ret < 0)
970 goto out;
971 hash_to_asc(d->hash, asc_hash);
972 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
973 if (ret < 0)
974 goto out;
975 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
976 if (ret < 0)
977 goto out;
978 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
979 audio_format_name(afsi->audio_format_id));
980 if (ret < 0)
981 goto out;
982 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
992 afhi->seconds_total);
993 if (ret < 0)
994 goto out;
995 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
996 if (ret < 0)
997 goto out;
998 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
999 if (ret < 0)
1000 goto out;
1001 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
1002 if (ret < 0)
1003 goto out;
1004 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
1005 tv2ms(&afhi->chunk_tv));
1006 if (ret < 0)
1007 goto out;
1008 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
1009 afhi->chunks_total);
1010 if (ret < 0)
1011 goto out;
1012 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
1013 if (ret < 0)
1014 goto out;
1015 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
1016 if (ret < 0)
1017 goto out;
1018 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
1019 if (ret < 0)
1020 goto out;
1021 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
1022 if (ret < 0)
1023 goto out;
1024 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
1025 if (ret < 0)
1026 goto out;
1027 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1028 if (ret < 0)
1029 goto out;
1030 if (opts->mode == LS_MODE_MBOX) {
1031 struct osl_object lyrics_def;
1032 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1033 if (lyrics_def.data) {
1034 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1035 (char *)lyrics_def.data);
1036 osl_close_disk_object(&lyrics_def);
1037 }
1038 }
1039 out:
1040 return ret;
1041 }
1042
1043 static struct ls_data status_item_ls_data;
1044 static struct osl_row *current_aft_row;
1045
1046 static void make_inode_status_items(struct para_buffer *pb)
1047 {
1048 struct stat statbuf = {.st_size = 0};
1049 char *path, mtime_str[30] = "\0";
1050 struct tm mtime_tm;
1051 int ret;
1052
1053 ret = get_audio_file_path_of_row(current_aft_row, &path);
1054 if (ret < 0)
1055 goto out;
1056 ret = stat(path, &statbuf);
1057 if (ret < 0)
1058 goto out;
1059 localtime_r(&statbuf.st_mtime, &mtime_tm);
1060 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
1061 assert(ret > 0); /* number of bytes placed in mtime_str */
1062 out:
1063 /* We don't care too much about errors here */
1064 (void)WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
1065 (void)WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
1066 }
1067
1068 static int make_status_items(void)
1069 {
1070 struct ls_options opts = {
1071 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1072 .mode = LS_MODE_VERBOSE,
1073 };
1074 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1075 time_t current_time;
1076 int ret;
1077
1078 time(&current_time);
1079 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1080 if (ret < 0)
1081 return ret;
1082 make_inode_status_items(&pb);
1083 free(status_items);
1084 status_items = pb.buf;
1085 memset(&pb, 0, sizeof(pb));
1086 pb.max_size = shm_get_shmmax() - 1;
1087 pb.flags = PBF_SIZE_PREFIX;
1088 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1089 if (ret < 0) {
1090 free(status_items);
1091 status_items = NULL;
1092 return ret;
1093 }
1094 make_inode_status_items(&pb);
1095 free(parser_friendly_status_items);
1096 parser_friendly_status_items = pb.buf;
1097 return 1;
1098 }
1099
1100 /**
1101 * Open the audio file with highest score and set up an afd structure.
1102 *
1103 * \param afd Result pointer.
1104 *
1105 * On success, the numplayed field of the audio file selector info is increased
1106 * and the lastplayed time is set to the current time. Finally, the score of
1107 * the audio file is updated.
1108 *
1109 * \return Positive shmid on success, negative on errors.
1110 */
1111 int open_and_update_audio_file(struct audio_file_data *afd)
1112 {
1113 unsigned char file_hash[HASH_SIZE];
1114 struct osl_object afsi_obj;
1115 struct afs_info new_afsi;
1116 int ret;
1117 struct afsi_change_event_data aced;
1118 struct osl_object map, chunk_table_obj;
1119 struct ls_data *d = &status_item_ls_data;
1120 again:
1121 ret = score_get_best(&current_aft_row, &d->score);
1122 if (ret < 0)
1123 return ret;
1124 ret = get_hash_of_row(current_aft_row, &d->hash);
1125 if (ret < 0)
1126 return ret;
1127 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1128 if (ret < 0)
1129 return ret;
1130 PARA_NOTICE_LOG("%s\n", d->path);
1131 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1132 if (ret < 0)
1133 return ret;
1134 ret = load_afsi(&d->afsi, &afsi_obj);
1135 if (ret < 0)
1136 return ret;
1137 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1138 if (ret < 0)
1139 return ret;
1140 d->afhi = afd->afhi;
1141 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1142 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1143 AFTCOL_CHUNKS, &chunk_table_obj));
1144 if (ret < 0)
1145 return ret;
1146 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1147 if (ret < 0)
1148 goto err;
1149 hash_function(map.data, map.size, file_hash);
1150 ret = hash_compare(file_hash, d->hash);
1151 para_munmap(map.data, map.size);
1152 if (ret) {
1153 ret = -E_HASH_MISMATCH;
1154 goto err;
1155 }
1156 new_afsi = d->afsi;
1157 new_afsi.num_played++;
1158 new_afsi.last_played = time(NULL);
1159 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1160
1161 afd->audio_format_id = d->afsi.audio_format_id;
1162 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1163 aced.aft_row = current_aft_row;
1164 aced.old_afsi = &d->afsi;
1165 /*
1166 * No need to update the status items as the AFSI_CHANGE event will
1167 * recreate them.
1168 */
1169 afs_event(AFSI_CHANGE, NULL, &aced);
1170 ret = save_afd(afd);
1171 err:
1172 free(afd->afhi.chunk_table);
1173 osl_close_disk_object(&chunk_table_obj);
1174 if (ret < 0) {
1175 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1176 ret = score_delete(current_aft_row);
1177 if (ret >= 0)
1178 goto again;
1179 }
1180 return ret;
1181 }
1182
1183 static int ls_audio_format_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.audio_format_id, d2->afsi.audio_format_id);
1187 }
1188
1189 static int ls_duration_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.seconds_total, d2->afhi.seconds_total);
1193 }
1194
1195 static int ls_bitrate_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.bitrate, d2->afhi.bitrate);
1199 }
1200
1201 static int ls_lyrics_id_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.lyrics_id, d2->afsi.lyrics_id);
1205 }
1206
1207 static int ls_image_id_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.image_id, d2->afsi.image_id);
1211 }
1212
1213 static int ls_channels_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->afhi.channels, d2->afhi.channels);
1217 }
1218
1219 static int ls_frequency_compare(const void *a, const void *b)
1220 {
1221 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1222 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1223 }
1224
1225 static int ls_num_played_compare(const void *a, const void *b)
1226 {
1227 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1228 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1229 }
1230
1231 static int ls_last_played_compare(const void *a, const void *b)
1232 {
1233 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1234 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1235 }
1236
1237 static int ls_score_compare(const void *a, const void *b)
1238 {
1239 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1240 return NUM_COMPARE(d1->score, d2->score);
1241 }
1242
1243 static int ls_path_compare(const void *a, const void *b)
1244 {
1245 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1246 return strcmp(d1->path, d2->path);
1247 }
1248
1249 static int sort_matching_paths(struct ls_options *options)
1250 {
1251 size_t nmemb = options->num_matching_paths;
1252 size_t size = sizeof(*options->data_ptr);
1253 int (*compar)(const void *, const void *);
1254 int i;
1255
1256 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1257 for (i = 0; i < nmemb; i++)
1258 options->data_ptr[i] = options->data + i;
1259
1260 /* In these cases the array is already sorted */
1261 if (options->sorting == LS_SORT_BY_PATH
1262 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1263 && (options->flags & LS_FLAG_FULL_PATH))
1264 return 1;
1265 if (options->sorting == LS_SORT_BY_SCORE &&
1266 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1267 return 1;
1268
1269 switch (options->sorting) {
1270 case LS_SORT_BY_PATH:
1271 compar = ls_path_compare; break;
1272 case LS_SORT_BY_SCORE:
1273 compar = ls_score_compare; break;
1274 case LS_SORT_BY_LAST_PLAYED:
1275 compar = ls_last_played_compare; break;
1276 case LS_SORT_BY_NUM_PLAYED:
1277 compar = ls_num_played_compare; break;
1278 case LS_SORT_BY_FREQUENCY:
1279 compar = ls_frequency_compare; break;
1280 case LS_SORT_BY_CHANNELS:
1281 compar = ls_channels_compare; break;
1282 case LS_SORT_BY_IMAGE_ID:
1283 compar = ls_image_id_compare; break;
1284 case LS_SORT_BY_LYRICS_ID:
1285 compar = ls_lyrics_id_compare; break;
1286 case LS_SORT_BY_BITRATE:
1287 compar = ls_bitrate_compare; break;
1288 case LS_SORT_BY_DURATION:
1289 compar = ls_duration_compare; break;
1290 case LS_SORT_BY_AUDIO_FORMAT:
1291 compar = ls_audio_format_compare; break;
1292 default:
1293 return -E_BAD_SORT;
1294 }
1295 qsort(options->data_ptr, nmemb, size, compar);
1296 return 1;
1297 }
1298
1299 /* row is either an aft_row or a row of the score table */
1300 /* TODO: Only compute widths if we need them */
1301 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1302 {
1303 int ret, i;
1304 struct ls_options *options = ls_opts;
1305 struct ls_data *d;
1306 struct ls_widths *w;
1307 unsigned short num_digits;
1308 unsigned tmp;
1309 struct osl_row *aft_row;
1310 long score;
1311 char *path;
1312
1313 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1314 ret = get_score_and_aft_row(row, &score, &aft_row);
1315 if (ret < 0)
1316 return ret;
1317 } else {
1318 aft_row = row;
1319 score = 0;
1320 }
1321 ret = get_audio_file_path_of_row(aft_row, &path);
1322 if (ret < 0)
1323 return ret;
1324 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1325 char *p = strrchr(path, '/');
1326 if (p)
1327 path = p + 1;
1328 }
1329 if (options->num_patterns) {
1330 for (i = 0; i < options->num_patterns; i++) {
1331 ret = fnmatch(options->patterns[i], path, 0);
1332 if (!ret)
1333 break;
1334 if (ret == FNM_NOMATCH)
1335 continue;
1336 return -E_FNMATCH;
1337 }
1338 if (i >= options->num_patterns) /* no match */
1339 return 1;
1340 }
1341 tmp = options->num_matching_paths++;
1342 if (options->num_matching_paths > options->array_size) {
1343 options->array_size++;
1344 options->array_size *= 2;
1345 options->data = para_realloc(options->data, options->array_size
1346 * sizeof(*options->data));
1347 }
1348 d = options->data + tmp;
1349 ret = get_afsi_of_row(aft_row, &d->afsi);
1350 if (ret < 0)
1351 return ret;
1352 ret = get_afhi_of_row(aft_row, &d->afhi);
1353 if (ret < 0)
1354 return ret;
1355 d->path = path;
1356 ret = get_hash_of_row(aft_row, &d->hash);
1357 if (ret < 0)
1358 goto err;
1359 w = &options->widths;
1360 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1361 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1362 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1363 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1364 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1365 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1366 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1367 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1368 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1369 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1370 /* get the number of chars to print this amount of time */
1371 num_digits = get_duration_width(d->afhi.seconds_total);
1372 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1373 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1374 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1375 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1376 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1377 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1378 GET_NUM_DIGITS(score, &num_digits);
1379 num_digits++; /* add one for the sign (space or "-") */
1380 w->score_width = PARA_MAX(w->score_width, num_digits);
1381 d->score = score;
1382 }
1383 return 1;
1384 err:
1385 return ret;
1386 }
1387
1388 static void com_ls_callback(int fd, const struct osl_object *query)
1389 {
1390 struct ls_options *opts = query->data;
1391 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1392 struct para_buffer b = {
1393 .max_size = shm_get_shmmax(),
1394 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1395 .max_size_handler = afs_max_size_handler,
1396 .private_data = &(struct afs_max_size_handler_data) {
1397 .fd = fd,
1398 .band = SBD_OUTPUT
1399 }
1400 };
1401 int i = 0, ret;
1402 time_t current_time;
1403
1404 if (opts->num_patterns) {
1405 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1406 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1407 opts->patterns[i] = p;
1408 p += strlen(p) + 1;
1409 }
1410 } else
1411 opts->patterns = NULL;
1412 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1413 ret = admissible_file_loop(opts, prepare_ls_row);
1414 else
1415 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1416 prepare_ls_row));
1417 if (ret < 0)
1418 goto out;
1419 if (opts->num_matching_paths == 0) {
1420 if (opts->num_patterns > 0)
1421 para_printf(&b, "no matches\n");
1422 goto out;
1423 }
1424 ret = sort_matching_paths(opts);
1425 if (ret < 0)
1426 goto out;
1427 time(&current_time);
1428 if (opts->flags & LS_FLAG_REVERSE)
1429 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1430 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1431 if (ret < 0)
1432 goto out;
1433 }
1434 else
1435 for (i = 0; i < opts->num_matching_paths; i++) {
1436 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1437 if (ret < 0)
1438 goto out;
1439 }
1440 out:
1441 if (b.offset)
1442 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1443 free(b.buf);
1444 free(opts->data);
1445 free(opts->data_ptr);
1446 free(opts->patterns);
1447 }
1448
1449 /*
1450 * TODO: flags -h (sort by hash)
1451 */
1452 int com_ls(struct command_context *cc)
1453 {
1454 int i, ret;
1455 unsigned flags = 0;
1456 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1457 enum ls_listing_mode mode = LS_MODE_SHORT;
1458 struct ls_options opts = {.patterns = NULL};
1459 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1460
1461 for (i = 1; i < cc->argc; i++) {
1462 const char *arg = cc->argv[i];
1463 if (arg[0] != '-')
1464 break;
1465 if (!strcmp(arg, "--")) {
1466 i++;
1467 break;
1468 }
1469 if (!strncmp(arg, "-l", 2)) {
1470 if (!*(arg + 2)) {
1471 mode = LS_MODE_LONG;
1472 continue;
1473 }
1474 if (*(arg + 3))
1475 return -E_AFT_SYNTAX;
1476 switch(*(arg + 2)) {
1477 case 's':
1478 mode = LS_MODE_SHORT;
1479 continue;
1480 case 'l':
1481 mode = LS_MODE_LONG;
1482 continue;
1483 case 'v':
1484 mode = LS_MODE_VERBOSE;
1485 continue;
1486 case 'm':
1487 mode = LS_MODE_MBOX;
1488 continue;
1489 case 'c':
1490 mode = LS_MODE_CHUNKS;
1491 continue;
1492 case 'p':
1493 mode = LS_MODE_PARSER;
1494 continue;
1495 default:
1496 return -E_AFT_SYNTAX;
1497 }
1498 }
1499 if (!strcmp(arg, "-p")) {
1500 flags |= LS_FLAG_FULL_PATH;
1501 continue;
1502 }
1503 if (!strcmp(arg, "-a")) {
1504 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1505 continue;
1506 }
1507 if (!strcmp(arg, "-r")) {
1508 flags |= LS_FLAG_REVERSE;
1509 continue;
1510 }
1511 if (!strcmp(arg, "-d")) {
1512 flags |= LS_FLAG_UNIXDATE;
1513 continue;
1514 }
1515 if (!strncmp(arg, "-s", 2)) {
1516 if (!*(arg + 2) || *(arg + 3))
1517 return -E_AFT_SYNTAX;
1518 switch(*(arg + 2)) {
1519 case 'p':
1520 sort = LS_SORT_BY_PATH;
1521 continue;
1522 case 's': /* -ss implies -a */
1523 sort = LS_SORT_BY_SCORE;
1524 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1525 continue;
1526 case 'l':
1527 sort = LS_SORT_BY_LAST_PLAYED;
1528 continue;
1529 case 'n':
1530 sort = LS_SORT_BY_NUM_PLAYED;
1531 continue;
1532 case 'f':
1533 sort = LS_SORT_BY_FREQUENCY;
1534 continue;
1535 case 'c':
1536 sort = LS_SORT_BY_CHANNELS;
1537 continue;
1538 case 'i':
1539 sort = LS_SORT_BY_IMAGE_ID;
1540 continue;
1541 case 'y':
1542 sort = LS_SORT_BY_LYRICS_ID;
1543 continue;
1544 case 'b':
1545 sort = LS_SORT_BY_BITRATE;
1546 continue;
1547 case 'd':
1548 sort = LS_SORT_BY_DURATION;
1549 continue;
1550 case 'a':
1551 sort = LS_SORT_BY_AUDIO_FORMAT;
1552 continue;
1553 default:
1554 return -E_AFT_SYNTAX;
1555 }
1556 }
1557 return -E_AFT_SYNTAX;
1558 }
1559 opts.flags = flags;
1560 opts.sorting = sort;
1561 opts.mode = mode;
1562 opts.num_patterns = cc->argc - i;
1563 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1564 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1565 return ret;
1566 }
1567
1568 /**
1569 * Call the given function for each file in the audio file table.
1570 *
1571 * \param private_data An arbitrary data pointer, passed to \a func.
1572 * \param func The custom function to be called.
1573 *
1574 * \return Standard.
1575 */
1576 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1577 {
1578 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1579 func));
1580 }
1581
1582 static struct osl_row *find_hash_sister(unsigned char *hash)
1583 {
1584 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1585 struct osl_row *row;
1586
1587 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1588 return row;
1589 }
1590
1591 /** The format of the data stored by save_audio_file_data(). */
1592 enum com_add_buffer_offsets {
1593 /** afhi (if present) starts here. */
1594 CAB_AFHI_OFFSET_POS = 0,
1595 /** Start of the chunk table (if present). */
1596 CAB_CHUNKS_OFFSET_POS = 2,
1597 /** Audio format id. */
1598 CAB_AUDIO_FORMAT_OFFSET = 4,
1599 /** Flags given to the add command. */
1600 CAB_FLAGS_OFFSET = 5,
1601 /** The hash of the audio file being added. */
1602 CAB_HASH_OFFSET = 9,
1603 /** Start of the path of the audio file. */
1604 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1605 };
1606
1607 /*
1608 * Store the given data to a single buffer. Doesn't need the audio file selector
1609 * info struct as the server knows it as well.
1610 *
1611 * It's OK to call this with afhi == NULL. In this case, the audio format
1612 * handler info won't be stored in the buffer.
1613 */
1614 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1615 struct afh_info *afhi, uint32_t flags,
1616 uint8_t audio_format_num, struct osl_object *obj)
1617 {
1618 size_t path_len = strlen(path) + 1;
1619 size_t afhi_size = sizeof_afhi_buf(afhi);
1620 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1621 + sizeof_chunk_table(afhi);
1622 char *buf = para_malloc(size);
1623 uint16_t pos;
1624
1625 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1626 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1627
1628 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1629 strcpy(buf + CAB_PATH_OFFSET, path);
1630
1631 pos = CAB_PATH_OFFSET + path_len;
1632 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1633 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1634 pos + afhi_size - 1);
1635 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1636 save_afhi(afhi, buf + pos);
1637
1638 pos += afhi_size;
1639 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1640 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1641 if (afhi)
1642 save_chunk_table(afhi, buf + pos);
1643 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1644 obj->data = buf;
1645 obj->size = size;
1646 }
1647
1648 /*
1649
1650 Overview of the add command.
1651
1652 Input: What was passed to the callback by the command handler.
1653 ~~~~~~
1654 HS: Hash sister. Whether an audio file with identical hash
1655 already exists in the osl database.
1656
1657 PB: Path brother. Whether a file with the given path exists
1658 in the table.
1659
1660 F: Force flag given. Whether add was called with -f.
1661
1662 output: Action performed by the callback.
1663 ~~~~~~~
1664 AFHI: Whether afhi and chunk table are computed and sent.
1665 ACTION: Table modifications to be done by the callback.
1666
1667 +----+----+---+------+---------------------------------------------------+
1668 | HS | PB | F | AFHI | ACTION
1669 +----+----+---+------+---------------------------------------------------+
1670 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1671 | | update path, keep afsi
1672 +----+----+---+------+---------------------------------------------------+
1673 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1674 | | otherwise: remove PB, HS: update path, keep afhi,
1675 | | afsi.
1676 +----+----+---+------+---------------------------------------------------+
1677 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1678 | | HS, keep afsi
1679 +----+----+---+------+---------------------------------------------------+
1680 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1681 +----+----+---+------+---------------------------------------------------+
1682 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1683 | | (force has no effect)
1684 +----+----+---+------+---------------------------------------------------+
1685 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1686 +----+----+---+------+---------------------------------------------------+
1687 | N | N | Y | Y | (new file) create new entry (force has no effect)
1688 +----+----+---+------+---------------------------------------------------+
1689 | N | N | N | Y | (new file) create new entry
1690 +----+----+---+------+---------------------------------------------------+
1691
1692 Notes:
1693
1694 afhi <=> force or no HS
1695 F => AFHI
1696
1697 */
1698
1699 /** Flags passed to the add command. */
1700 enum com_add_flags {
1701 /** Skip paths that exist already. */
1702 ADD_FLAG_LAZY = 1,
1703 /** Force adding. */
1704 ADD_FLAG_FORCE = 2,
1705 /** Print what is being done. */
1706 ADD_FLAG_VERBOSE = 4,
1707 /** Try to add files with unknown suffixes. */
1708 ADD_FLAG_ALL = 8,
1709 };
1710
1711 static void com_add_callback(int fd, const struct osl_object *query)
1712 {
1713 char *buf = query->data, *path;
1714 struct osl_row *pb, *aft_row;
1715 struct osl_row *hs;
1716 struct osl_object objs[NUM_AFT_COLUMNS];
1717 unsigned char *hash;
1718 char asc[2 * HASH_SIZE + 1];
1719 int ret;
1720 char afsi_buf[AFSI_SIZE];
1721 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1722 struct afs_info default_afsi = {.last_played = 0};
1723 struct para_buffer msg = {
1724 .max_size = shm_get_shmmax(),
1725 .max_size_handler = afs_max_size_handler,
1726 .private_data = &(struct afs_max_size_handler_data) {
1727 .fd = fd,
1728 .band = SBD_OUTPUT
1729 }
1730 };
1731 uint16_t afhi_offset, chunks_offset;
1732
1733 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1734 hash_to_asc(hash, asc);
1735 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1736 objs[AFTCOL_HASH].size = HASH_SIZE;
1737
1738 path = buf + CAB_PATH_OFFSET;
1739 objs[AFTCOL_PATH].data = path;
1740 objs[AFTCOL_PATH].size = strlen(path) + 1;
1741
1742 PARA_INFO_LOG("request to add %s\n", path);
1743 hs = find_hash_sister(hash);
1744 ret = aft_get_row_of_path(path, &pb);
1745 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1746 goto out;
1747 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1748 if (flags & ADD_FLAG_VERBOSE)
1749 ret = para_printf(&msg, "ignoring duplicate\n");
1750 else
1751 ret = 1;
1752 goto out;
1753 }
1754 if (hs && hs != pb) {
1755 struct osl_object obj;
1756 if (pb) { /* hs trumps pb, remove pb */
1757 if (flags & ADD_FLAG_VERBOSE) {
1758 ret = para_printf(&msg, "removing %s\n", path);
1759 if (ret < 0)
1760 goto out;
1761 }
1762 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1763 ret = osl(osl_del_row(audio_file_table, pb));
1764 if (ret < 0)
1765 goto out;
1766 pb = NULL;
1767 }
1768 /* file rename, update hs' path */
1769 if (flags & ADD_FLAG_VERBOSE) {
1770 ret = osl(osl_get_object(audio_file_table, hs,
1771 AFTCOL_PATH, &obj));
1772 if (ret < 0)
1773 goto out;
1774 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1775 if (ret < 0)
1776 goto out;
1777 }
1778 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1779 &objs[AFTCOL_PATH]));
1780 if (ret < 0)
1781 goto out;
1782 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1783 if (!(flags & ADD_FLAG_FORCE))
1784 goto out;
1785 }
1786 /* no hs or force mode, child must have sent afhi */
1787 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1788 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1789
1790 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1791 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1792 ret = -E_NO_AFHI;
1793 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1794 goto out;
1795 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1796 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1797 if (pb && !hs) { /* update pb's hash */
1798 char old_asc[2 * HASH_SIZE + 1];
1799 unsigned char *old_hash;
1800 ret = get_hash_of_row(pb, &old_hash);
1801 if (ret < 0)
1802 goto out;
1803 hash_to_asc(old_hash, old_asc);
1804 if (flags & ADD_FLAG_VERBOSE) {
1805 ret = para_printf(&msg, "file change: %s -> %s\n",
1806 old_asc, asc);
1807 if (ret < 0)
1808 goto out;
1809 }
1810 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1811 &objs[AFTCOL_HASH]);
1812 if (ret < 0)
1813 goto out;
1814 }
1815 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1816 struct osl_row *row = pb? pb : hs;
1817 /* update afhi and chunk_table */
1818 if (flags & ADD_FLAG_VERBOSE) {
1819 ret = para_printf(&msg, "updating afhi and chunk table\n");
1820 if (ret < 0)
1821 goto out;
1822 }
1823 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1824 &objs[AFTCOL_AFHI]));
1825 if (ret < 0)
1826 goto out;
1827 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1828 &objs[AFTCOL_CHUNKS]));
1829 if (ret < 0)
1830 goto out;
1831 afs_event(AFHI_CHANGE, &msg, row);
1832 goto out;
1833 }
1834 /* new entry, use default afsi */
1835 if (flags & ADD_FLAG_VERBOSE) {
1836 ret = para_printf(&msg, "new file\n");
1837 if (ret < 0)
1838 goto out;
1839 }
1840 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1841 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1842
1843 objs[AFTCOL_AFSI].data = &afsi_buf;
1844 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1845 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1846 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1847 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1848 out:
1849 if (ret < 0)
1850 para_printf(&msg, "%s\n", para_strerror(-ret));
1851 if (msg.offset)
1852 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1853 free(msg.buf);
1854 }
1855
1856 /** Used by com_add(). */
1857 struct private_add_data {
1858 /** The pointer passed to the original command handler. */
1859 struct command_context *cc;
1860 /** The given add flags. */
1861 uint32_t flags;
1862 };
1863
1864 static void path_brother_callback(int fd, const struct osl_object *query)
1865 {
1866 char *path = query->data;
1867 struct osl_row *path_brother;
1868 int ret = aft_get_row_of_path(path, &path_brother);
1869 if (ret < 0)
1870 return;
1871 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1872 sizeof(path_brother));
1873 }
1874
1875 static void hash_sister_callback(int fd, const struct osl_object *query)
1876 {
1877 unsigned char *hash = query->data;
1878 struct osl_row *hash_sister;
1879
1880 hash_sister = find_hash_sister(hash);
1881 if (!hash_sister)
1882 return;
1883 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1884 sizeof(hash_sister));
1885 }
1886
1887 static int get_row_pointer_from_result(struct osl_object *result,
1888 __a_unused uint8_t band, void *private)
1889 {
1890 struct osl_row **row = private;
1891 *row = *(struct osl_row **)(result->data);
1892 return 1;
1893 }
1894
1895 static int add_one_audio_file(const char *path, void *private_data)
1896 {
1897 int ret, send_ret = 1, fd;
1898 uint8_t format_num = -1;
1899 struct private_add_data *pad = private_data;
1900 struct afh_info afhi, *afhi_ptr = NULL;
1901 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1902 struct osl_object map, obj = {.data = NULL}, query;
1903 unsigned char hash[HASH_SIZE];
1904
1905 ret = guess_audio_format(path);
1906 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1907 goto out_free;
1908 query.data = (char *)path;
1909 query.size = strlen(path) + 1;
1910 ret = send_callback_request(path_brother_callback, &query,
1911 get_row_pointer_from_result, &pb);
1912 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1913 goto out_free;
1914 ret = 1;
1915 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1916 if (pad->flags & ADD_FLAG_VERBOSE)
1917 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1918 "lazy-ignore: %s\n", path);
1919 goto out_free;
1920 }
1921 /* We still want to add this file. Compute its hash. */
1922 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1923 if (ret < 0)
1924 goto out_free;
1925 hash_function(map.data, map.size, hash);
1926
1927 /* Check whether the database contains a file with the same hash. */
1928 query.data = hash;
1929 query.size = HASH_SIZE;
1930 ret = send_callback_request(hash_sister_callback, &query,
1931 get_row_pointer_from_result, &hs);
1932 if (ret < 0)
1933 goto out_unmap;
1934 /* Return success if we already know this file. */
1935 ret = 1;
1936 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1937 if (pad->flags & ADD_FLAG_VERBOSE)
1938 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1939 "%s exists, not forcing update\n", path);
1940 goto out_unmap;
1941 }
1942 /*
1943 * We won't recalculate the audio format info and the chunk table if
1944 * there is a hash sister and FORCE was not given.
1945 */
1946 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1947 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1948 if (ret < 0)
1949 goto out_unmap;
1950 format_num = ret;
1951 afhi_ptr = &afhi;
1952 }
1953 munmap(map.data, map.size);
1954 close(fd);
1955 if (pad->flags & ADD_FLAG_VERBOSE) {
1956 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1957 "adding %s\n", path);
1958 if (send_ret < 0)
1959 goto out_free;
1960 }
1961 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1962 /* Ask afs to consider this entry for adding. */
1963 ret = send_callback_request(com_add_callback, &obj,
1964 afs_cb_result_handler, pad->cc);
1965 goto out_free;
1966
1967 out_unmap:
1968 close(fd);
1969 munmap(map.data, map.size);
1970 out_free:
1971 if (ret < 0 && send_ret >= 0)
1972 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1973 "failed to add %s (%s)\n", path, para_strerror(-ret));
1974 free(obj.data);
1975 clear_afhi(afhi_ptr);
1976 /* Stop adding files only on send errors. */
1977 return send_ret;
1978 }
1979
1980 int com_add(struct command_context *cc)
1981 {
1982 int i, ret;
1983 struct private_add_data pad = {.cc = cc, .flags = 0};
1984 struct stat statbuf;
1985
1986 for (i = 1; i < cc->argc; i++) {
1987 const char *arg = cc->argv[i];
1988 if (arg[0] != '-')
1989 break;
1990 if (!strcmp(arg, "--")) {
1991 i++;
1992 break;
1993 }
1994 if (!strcmp(arg, "-a")) {
1995 pad.flags |= ADD_FLAG_ALL;
1996 continue;
1997 }
1998 if (!strcmp(arg, "-l")) {
1999 pad.flags |= ADD_FLAG_LAZY;
2000 continue;
2001 }
2002 if (!strcmp(arg, "-f")) {
2003 pad.flags |= ADD_FLAG_FORCE;
2004 continue;
2005 }
2006 if (!strcmp(arg, "-v")) {
2007 pad.flags |= ADD_FLAG_VERBOSE;
2008 continue;
2009 }
2010 }
2011 if (cc->argc <= i)
2012 return -E_AFT_SYNTAX;
2013 for (; i < cc->argc; i++) {
2014 char *path;
2015 ret = verify_path(cc->argv[i], &path);
2016 if (ret < 0) {
2017 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
2018 cc->argv[i], para_strerror(-ret));
2019 if (ret < 0)
2020 return ret;
2021 continue;
2022 }
2023 ret = stat(path, &statbuf);
2024 if (ret < 0) {
2025 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG,
2026 "failed to stat %s (%s)\n", path,
2027 strerror(errno));
2028 free(path);
2029 if (ret < 0)
2030 return ret;
2031 continue;
2032 }
2033 if (S_ISDIR(statbuf.st_mode))
2034 ret = for_each_file_in_dir(path, add_one_audio_file,
2035 &pad);
2036 else
2037 ret = add_one_audio_file(path, &pad);
2038 if (ret < 0) {
2039 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2040 para_strerror(-ret));
2041 free(path);
2042 return ret;
2043 }
2044 free(path);
2045 }
2046 return 1;
2047 }
2048
2049 /**
2050 * Flags used by the touch command.
2051 *
2052 * \sa com_touch().
2053 */
2054 enum touch_flags {
2055 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2056 TOUCH_FLAG_FNM_PATHNAME = 1,
2057 /** Activates verbose mode. */
2058 TOUCH_FLAG_VERBOSE = 2
2059 };
2060
2061 /** Options used by com_touch(). */
2062 struct com_touch_options {
2063 /** New num_played value. */
2064 int32_t num_played;
2065 /** New last played count. */
2066 int64_t last_played;
2067 /** New lyrics id. */
2068 int32_t lyrics_id;
2069 /** New image id. */
2070 int32_t image_id;
2071 /** New amplification value. */
2072 int32_t amp;
2073 /** Command line flags (see \ref touch_flags). */
2074 unsigned flags;
2075 };
2076
2077 /** Data passed to the action handler of com_touch(). */
2078 struct touch_action_data {
2079 /** Command line options (see \ref com_touch_options). */
2080 struct com_touch_options *cto;
2081 /** Message buffer. */
2082 struct para_buffer pb;
2083 };
2084
2085 static int touch_audio_file(__a_unused struct osl_table *table,
2086 struct osl_row *row, const char *name, void *data)
2087 {
2088 struct touch_action_data *tad = data;
2089 struct osl_object obj;
2090 struct afs_info old_afsi, new_afsi;
2091 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2092 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2093 struct afsi_change_event_data aced;
2094
2095 ret = get_afsi_object_of_row(row, &obj);
2096 if (ret < 0)
2097 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2098 ret = load_afsi(&old_afsi, &obj);
2099 if (ret < 0)
2100 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2101 new_afsi = old_afsi;
2102 if (no_options) {
2103 new_afsi.num_played++;
2104 new_afsi.last_played = time(NULL);
2105 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2106 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2107 "last_played = now()\n", name,
2108 new_afsi.num_played);
2109 if (ret < 0)
2110 return ret;
2111 }
2112 } else {
2113 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2114 ret = para_printf(&tad->pb, "touching %s\n", name);
2115 if (ret < 0)
2116 return ret;
2117 }
2118 if (tad->cto->lyrics_id >= 0)
2119 new_afsi.lyrics_id = tad->cto->lyrics_id;
2120 if (tad->cto->image_id >= 0)
2121 new_afsi.image_id = tad->cto->image_id;
2122 if (tad->cto->num_played >= 0)
2123 new_afsi.num_played = tad->cto->num_played;
2124 if (tad->cto->last_played >= 0)
2125 new_afsi.last_played = tad->cto->last_played;
2126 if (tad->cto->amp >= 0)
2127 new_afsi.amp = tad->cto->amp;
2128 }
2129 save_afsi(&new_afsi, &obj); /* in-place update */
2130 aced.aft_row = row;
2131 aced.old_afsi = &old_afsi;
2132 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2133 return 1;
2134 }
2135
2136 static void com_touch_callback(int fd, const struct osl_object *query)
2137 {
2138 struct touch_action_data tad = {.cto = query->data,
2139 .pb = {
2140 .max_size = shm_get_shmmax(),
2141 .private_data = &fd,
2142 .max_size_handler = afs_max_size_handler
2143 }
2144 };
2145 int ret, ret2 = 0;
2146 struct pattern_match_data pmd = {
2147 .table = audio_file_table,
2148 .loop_col_num = AFTCOL_HASH,
2149 .match_col_num = AFTCOL_PATH,
2150 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2151 .size = query->size - sizeof(*tad.cto)},
2152 .data = &tad,
2153 .action = touch_audio_file
2154 };
2155 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2156 pmd.fnmatch_flags |= FNM_PATHNAME;
2157 ret = for_each_matching_row(&pmd);
2158 if (ret < 0)
2159 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2160 else if (pmd.num_matches == 0)
2161 ret2 = para_printf(&tad.pb, "no matches\n");
2162 if (ret2 >= 0 && tad.pb.offset)
2163 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2164 free(tad.pb.buf);
2165 }
2166
2167 int com_touch(struct command_context *cc)
2168 {
2169 struct com_touch_options cto = {
2170 .num_played = -1,
2171 .last_played = -1,
2172 .lyrics_id = -1,
2173 .image_id = -1,
2174 .amp = -1,
2175 };
2176 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2177 int i, ret;
2178
2179
2180 for (i = 1; i < cc->argc; i++) {
2181 const char *arg = cc->argv[i];
2182 if (arg[0] != '-')
2183 break;
2184 if (!strcmp(arg, "--")) {
2185 i++;
2186 break;
2187 }
2188 if (!strncmp(arg, "-n=", 3)) {
2189 ret = para_atoi32(arg + 3, &cto.num_played);
2190 if (ret < 0)
2191 return ret;
2192 continue;
2193 }
2194 if (!strncmp(arg, "-l=", 3)) {
2195 ret = para_atoi64(arg + 3, &cto.last_played);
2196 if (ret < 0)
2197 return ret;
2198 continue;
2199 }
2200 if (!strncmp(arg, "-y=", 3)) {
2201 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2202 if (ret < 0)
2203 return ret;
2204 continue;
2205 }
2206 if (!strncmp(arg, "-i=", 3)) {
2207 ret = para_atoi32(arg + 3, &cto.image_id);
2208 if (ret < 0)
2209 return ret;
2210 continue;
2211 }
2212 if (!strncmp(arg, "-a=", 3)) {
2213 int32_t val;
2214 ret = para_atoi32(arg + 3, &val);
2215 if (ret < 0)
2216 return ret;
2217 if (val < 0 || val > 255)
2218 return -ERRNO_TO_PARA_ERROR(EINVAL);
2219 cto.amp = val;
2220 continue;
2221 }
2222 if (!strcmp(arg, "-p")) {
2223 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2224 continue;
2225 }
2226 if (!strcmp(arg, "-v")) {
2227 cto.flags |= TOUCH_FLAG_VERBOSE;
2228 continue;
2229 }
2230 break; /* non-option starting with dash */
2231 }
2232 if (i >= cc->argc)
2233 return -E_AFT_SYNTAX;
2234 ret = send_option_arg_callback_request(&query, cc->argc - i,
2235 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2236 if (ret < 0)
2237 send_strerror(cc, -ret);
2238 return ret;
2239 }
2240
2241 /** Flags for com_rm(). */
2242 enum rm_flags {
2243 /** -v */
2244 RM_FLAG_VERBOSE = 1,
2245 /** -f */
2246 RM_FLAG_FORCE = 2,
2247 /** -p */
2248 RM_FLAG_FNM_PATHNAME = 4
2249 };
2250
2251 /** Data passed to the action handler of com_rm(). */
2252 struct com_rm_action_data {
2253 /** Command line flags ((see \ref rm_flags). */
2254 uint32_t flags;
2255 /** Message buffer. */
2256 struct para_buffer pb;
2257 };
2258
2259 static int remove_audio_file(__a_unused struct osl_table *table,
2260 struct osl_row *row, const char *name, void *data)
2261 {
2262 struct com_rm_action_data *crd = data;
2263 int ret;
2264
2265 if (crd->flags & RM_FLAG_VERBOSE) {
2266 ret = para_printf(&crd->pb, "removing %s\n", name);
2267 if (ret < 0)
2268 return ret;
2269 }
2270 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2271 ret = osl(osl_del_row(audio_file_table, row));
2272 if (ret < 0)
2273 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2274 return ret;
2275 }
2276
2277 static void com_rm_callback(int fd, const struct osl_object *query)
2278 {
2279 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2280 .pb = {
2281 .max_size = shm_get_shmmax(),
2282 .private_data = &fd,
2283 .max_size_handler = afs_max_size_handler
2284 }
2285 };
2286 int ret;
2287 struct pattern_match_data pmd = {
2288 .table = audio_file_table,
2289 .loop_col_num = AFTCOL_HASH,
2290 .match_col_num = AFTCOL_PATH,
2291 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2292 .size = query->size - sizeof(uint32_t)},
2293 .data = &crd,
2294 .action = remove_audio_file
2295 };
2296 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2297 pmd.fnmatch_flags |= FNM_PATHNAME;
2298 ret = for_each_matching_row(&pmd);
2299 if (ret < 0) {
2300 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2301 return;
2302 }
2303 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2304 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2305 else if (crd.flags & RM_FLAG_VERBOSE) {
2306 ret = para_printf(&crd.pb, "removed %u files\n",
2307 pmd.num_matches);
2308 }
2309 if (ret >= 0 && crd.pb.offset)
2310 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2311 free(crd.pb.buf);
2312 }
2313
2314 /* TODO options: -r (recursive) */
2315 int com_rm(struct command_context *cc)
2316 {
2317 uint32_t flags = 0;
2318 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2319 int i, ret;
2320
2321 for (i = 1; i < cc->argc; i++) {
2322 const char *arg = cc->argv[i];
2323 if (arg[0] != '-')
2324 break;
2325 if (!strcmp(arg, "--")) {
2326 i++;
2327 break;
2328 }
2329 if (!strcmp(arg, "-f")) {
2330 flags |= RM_FLAG_FORCE;
2331 continue;
2332 }
2333 if (!strcmp(arg, "-p")) {
2334 flags |= RM_FLAG_FNM_PATHNAME;
2335 continue;
2336 }
2337 if (!strcmp(arg, "-v")) {
2338 flags |= RM_FLAG_VERBOSE;
2339 continue;
2340 }
2341 break;
2342 }
2343 if (i >= cc->argc)
2344 return -E_AFT_SYNTAX;
2345 ret = send_option_arg_callback_request(&query, cc->argc - i,
2346 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2347 if (ret < 0)
2348 send_strerror(cc, -ret);
2349 return ret;
2350 }
2351
2352 /**
2353 * Flags used by the cpsi command.
2354 *
2355 * \sa com_cpsi().
2356 */
2357 enum cpsi_flags {
2358 /** Whether the lyrics id should be copied. */
2359 CPSI_FLAG_COPY_LYRICS_ID = 1,
2360 /** Whether the image id should be copied. */
2361 CPSI_FLAG_COPY_IMAGE_ID = 2,
2362 /** Whether the lastplayed time should be copied. */
2363 CPSI_FLAG_COPY_LASTPLAYED = 4,
2364 /** Whether the numplayed count should be copied. */
2365 CPSI_FLAG_COPY_NUMPLAYED = 8,
2366 /** Whether the attributes should be copied. */
2367 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2368 /** Activates verbose mode. */
2369 CPSI_FLAG_VERBOSE = 32,
2370 };
2371
2372 /** Data passed to the action handler of com_cpsi(). */
2373 struct cpsi_action_data {
2374 /** command line flags (see \ref cpsi_flags). */
2375 unsigned flags;
2376 /** Message buffer. */
2377 struct para_buffer pb;
2378 /** Values are copied from here. */
2379 struct afs_info source_afsi;
2380 };
2381
2382 static int copy_selector_info(__a_unused struct osl_table *table,
2383 struct osl_row *row, const char *name, void *data)
2384 {
2385 struct cpsi_action_data *cad = data;
2386 struct osl_object target_afsi_obj;
2387 int ret;
2388 struct afs_info old_afsi, target_afsi;
2389 struct afsi_change_event_data aced;
2390
2391 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2392 if (ret < 0)
2393 return ret;
2394 load_afsi(&target_afsi, &target_afsi_obj);
2395 old_afsi = target_afsi;
2396 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2397 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2398 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2399 target_afsi.image_id = cad->source_afsi.image_id;
2400 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2401 target_afsi.last_played = cad->source_afsi.last_played;
2402 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2403 target_afsi.num_played = cad->source_afsi.num_played;
2404 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2405 target_afsi.attributes = cad->source_afsi.attributes;
2406 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2407 if (cad->flags & CPSI_FLAG_VERBOSE) {
2408 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2409 if (ret < 0)
2410 return ret;
2411 }
2412 aced.aft_row = row;
2413 aced.old_afsi = &old_afsi;
2414 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2415 return 1;
2416 }
2417
2418 static void com_cpsi_callback(int fd, const struct osl_object *query)
2419 {
2420 struct cpsi_action_data cad = {
2421 .flags = *(unsigned *)query->data,
2422 .pb = {
2423 .max_size = shm_get_shmmax(),
2424 .private_data = &fd,
2425 .max_size_handler = afs_max_size_handler
2426 }
2427 };
2428 int ret;
2429 char *source_path = (char *)query->data + sizeof(cad.flags);
2430 struct pattern_match_data pmd = {
2431 .table = audio_file_table,
2432 .loop_col_num = AFTCOL_HASH,
2433 .match_col_num = AFTCOL_PATH,
2434 .patterns = {.data = source_path + strlen(source_path) + 1,
2435 .size = query->size - sizeof(cad.flags)
2436 - strlen(source_path) - 1},
2437 .data = &cad,
2438 .action = copy_selector_info
2439 };
2440
2441 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2442 if (ret < 0)
2443 goto out;
2444 ret = for_each_matching_row(&pmd);
2445 out:
2446 if (ret < 0)
2447 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2448 else if (pmd.num_matches > 0) {
2449 if (cad.flags & CPSI_FLAG_VERBOSE)
2450 para_printf(&cad.pb, "copied requested afsi from %s "
2451 "to %u files\n", source_path, pmd.num_matches);
2452 } else
2453 para_printf(&cad.pb, "no matches - nothing copied\n");
2454 if (cad.pb.offset)
2455 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2456 free(cad.pb.buf);
2457 }
2458
2459 int com_cpsi(struct command_context *cc)
2460 {
2461 unsigned flags = 0;
2462 int i, ret;
2463 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2464
2465 for (i = 1; i < cc->argc; i++) {
2466 const char *arg = cc->argv[i];
2467 if (arg[0] != '-')
2468 break;
2469 if (!strcmp(arg, "--")) {
2470 i++;
2471 break;
2472 }
2473 if (!strcmp(arg, "-y")) {
2474 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2475 continue;
2476 }
2477 if (!strcmp(arg, "-i")) {
2478 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2479 continue;
2480 }
2481 if (!strcmp(arg, "-l")) {
2482 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2483 continue;
2484 }
2485 if (!strcmp(arg, "-n")) {
2486 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2487 continue;
2488 }
2489 if (!strcmp(arg, "-a")) {
2490 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2491 continue;
2492 }
2493 if (!strcmp(arg, "-v")) {
2494 flags |= CPSI_FLAG_VERBOSE;
2495 continue;
2496 }
2497 break;
2498 }
2499 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2500 return -E_AFT_SYNTAX;
2501 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2502 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2503 ret = send_option_arg_callback_request(&options, cc->argc - i,
2504 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2505 if (ret < 0)
2506 send_strerror(cc, -ret);
2507 return ret;
2508 }
2509
2510 struct change_atts_data {
2511 uint64_t add_mask, del_mask;
2512 struct para_buffer pb;
2513 };
2514
2515 static int change_atts(__a_unused struct osl_table *table,
2516 struct osl_row *row, __a_unused const char *name, void *data)
2517 {
2518 int ret;
2519 struct osl_object obj;
2520 struct afs_info old_afsi, new_afsi;
2521 struct afsi_change_event_data aced = {
2522 .aft_row = row,
2523 .old_afsi = &old_afsi
2524 };
2525 struct change_atts_data *cad = data;
2526
2527 ret = get_afsi_object_of_row(row, &obj);
2528 if (ret < 0)
2529 return ret;
2530 ret = load_afsi(&old_afsi, &obj);
2531 if (ret < 0)
2532 return ret;
2533 new_afsi = old_afsi;
2534 new_afsi.attributes |= cad->add_mask;
2535 new_afsi.attributes &= ~cad->del_mask;
2536 save_afsi(&new_afsi, &obj); /* in-place update */
2537 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2538 return 1;
2539 }
2540
2541 static void com_setatt_callback(int fd, const struct osl_object *query)
2542 {
2543 char *p;
2544 int ret;
2545 size_t len;
2546 struct change_atts_data cad = {
2547 .pb = {
2548 .max_size = shm_get_shmmax(),
2549 .max_size_handler = afs_max_size_handler,
2550 .private_data = &(struct afs_max_size_handler_data) {
2551 .fd = fd,
2552 .band = SBD_OUTPUT
2553 }
2554 }
2555 };
2556 struct pattern_match_data pmd = {
2557 .table = audio_file_table,
2558 .loop_col_num = AFTCOL_HASH,
2559 .match_col_num = AFTCOL_PATH,
2560 .pm_flags = PM_SKIP_EMPTY_NAME,
2561 .data = &cad,
2562 .action = change_atts
2563 };
2564
2565 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2566 char c;
2567 unsigned char bitnum;
2568
2569 len = strlen(p);
2570 ret = -E_ATTR_SYNTAX;
2571 if (len == 0)
2572 goto out;
2573 c = p[len - 1];
2574 if (c != '+' && c != '-')
2575 break;
2576 p[len - 1] = '\0';
2577 ret = get_attribute_bitnum_by_name(p, &bitnum);
2578 if (ret < 0)
2579 goto out;
2580 if (c == '+')
2581 cad.add_mask |= (1UL << bitnum);
2582 else
2583 cad.del_mask |= (1UL << bitnum);
2584 }
2585 ret = -E_ATTR_SYNTAX;
2586 if (!cad.add_mask && !cad.del_mask)
2587 goto out;
2588 pmd.patterns.data = p;
2589 assert(p < (char *)query->data + query->size);
2590 pmd.patterns.size = (char *)query->data + query->size - p;
2591 ret = for_each_matching_row(&pmd);
2592 if (ret < 0)
2593 goto out;
2594 if (pmd.num_matches == 0)
2595 para_printf(&cad.pb, "no matches\n");
2596 out:
2597 if (ret < 0)
2598 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2599 if (cad.pb.offset)
2600 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2601 free(cad.pb.buf);
2602 }
2603
2604 int com_setatt(struct command_context *cc)
2605 {
2606 if (cc->argc < 3)
2607 return -E_ATTR_SYNTAX;
2608 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2609 com_setatt_callback, afs_cb_result_handler, cc);
2610 }
2611
2612 static void afs_stat_callback(int fd, const struct osl_object *query)
2613 {
2614 int *parser_friendly = query->data;
2615 char *buf = *parser_friendly?
2616 parser_friendly_status_items : status_items;
2617
2618 if (!buf)
2619 return;
2620 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2621 }
2622
2623 /**
2624 * Get the current afs status items from the afs process and send it.
2625 *
2626 * \param cc The command context, used e.g. for data encryption.
2627 * \param parser_friendly Whether parser-friendly output format should be used.
2628 *
2629 * As the contents of the afs status items change in time and the command
2630 * handler only has a COW version created at fork time, it can not send
2631 * up-to-date afs status items directly. Therefore the usual callback mechanism
2632 * is used to pass the status items from the afs process to the command handler
2633 * via a shared memory area and a pipe.
2634 *
2635 * \return The return value of the underlying call to \ref send_callback_request().
2636 */
2637 int send_afs_status(struct command_context *cc, int parser_friendly)
2638 {
2639 struct osl_object query = {.data = &parser_friendly,
2640 .size = sizeof(parser_friendly)};
2641
2642 return send_callback_request(afs_stat_callback, &query,
2643 afs_cb_result_handler, cc);
2644 }
2645
2646 /* TODO: optionally fix problems by removing offending rows */
2647 static int check_audio_file(struct osl_row *row, void *data)
2648 {
2649 char *path;
2650 struct para_buffer *pb = data;
2651 struct stat statbuf;
2652 int ret = get_audio_file_path_of_row(row, &path);
2653 struct afs_info afsi;
2654 char *blob_name;
2655
2656 if (ret < 0)
2657 return para_printf(pb, "%s\n", para_strerror(-ret));
2658 if (stat(path, &statbuf) < 0) {
2659 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2660 if (ret < 0)
2661 return ret;
2662 } else {
2663 if (!S_ISREG(statbuf.st_mode)) {
2664 ret = para_printf(pb, "%s: not a regular file\n", path);
2665 if (ret < 0)
2666 return ret;
2667 }
2668 }
2669 ret = get_afsi_of_row(row, &afsi);
2670 if (ret < 0)
2671 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2672 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2673 if (ret < 0) {
2674 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2675 para_strerror(-ret));
2676 if (ret < 0)
2677 return ret;
2678 }
2679 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2680 if (ret < 0)
2681 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2682 para_strerror(-ret));
2683 return ret;
2684 }
2685
2686 /**
2687 * Check the audio file table for inconsistencies.
2688 *
2689 * \param fd The afs socket.
2690 * \param query Unused.
2691 *
2692 * This function always succeeds.
2693 *
2694 * \sa com_check().
2695 */
2696 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2697 {
2698 struct para_buffer pb = {
2699 .max_size = shm_get_shmmax(),
2700 .private_data = &(struct afs_max_size_handler_data) {
2701 .fd = fd,
2702 .band = SBD_OUTPUT
2703 },
2704 .max_size_handler = afs_max_size_handler
2705 };
2706 int ret = para_printf(&pb, "checking audio file table...\n");
2707
2708 if (ret < 0)
2709 return;
2710 audio_file_loop(&pb, check_audio_file);
2711 if (pb.offset)
2712 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2713 free(pb.buf);
2714 }
2715
2716 /**
2717 * Close the audio file table.
2718 *
2719 * \param flags Usual flags that are passed to osl_close_table().
2720 *
2721 * \sa osl_close_table().
2722 */
2723 static void aft_close(void)
2724 {
2725 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2726 audio_file_table = NULL;
2727 }
2728
2729 /**
2730 * Open the audio file table.
2731 *
2732 * \param dir The database directory.
2733 *
2734 * \return Standard.
2735 *
2736 * \sa osl_open_table().
2737 */
2738 static int aft_open(const char *dir)
2739 {
2740 int ret;
2741
2742 audio_file_table_desc.dir = dir;
2743 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2744 if (ret >= 0) {
2745 unsigned num;
2746 osl_get_num_rows(audio_file_table, &num);
2747 PARA_INFO_LOG("audio file table contains %d files\n", num);
2748 return ret;
2749 }
2750 PARA_INFO_LOG("failed to open audio file table\n");
2751 audio_file_table = NULL;
2752 if (ret >= 0 || ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2753 return 1;
2754 return ret;
2755 }
2756
2757 static int aft_create(const char *dir)
2758 {
2759 audio_file_table_desc.dir = dir;
2760 return osl(osl_create_table(&audio_file_table_desc));
2761 }
2762
2763 static int clear_attribute(struct osl_row *row, void *data)
2764 {
2765 struct rmatt_event_data *red = data;
2766 struct afs_info afsi;
2767 struct osl_object obj;
2768 int ret = get_afsi_object_of_row(row, &obj);
2769 uint64_t mask = ~(1ULL << red->bitnum);
2770
2771 if (ret < 0)
2772 return ret;
2773 ret = load_afsi(&afsi, &obj);
2774 if (ret < 0)
2775 return ret;
2776 afsi.attributes &= mask;
2777 save_afsi(&afsi, &obj);
2778 return 1;
2779 }
2780
2781 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2782 void *data)
2783 {
2784 int ret;
2785
2786 switch (event) {
2787 case ATTRIBUTE_REMOVE: {
2788 const struct rmatt_event_data *red = data;
2789 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2790 "entries in the audio file table\n", red->name,
2791 red->bitnum);
2792 if (ret < 0)
2793 return ret;
2794 return audio_file_loop(data, clear_attribute);
2795 } case AFSI_CHANGE: {
2796 struct afsi_change_event_data *aced = data;
2797 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2798 if (aced->aft_row != current_aft_row)
2799 return 0;
2800 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2801 if (ret < 0)
2802 return ret;
2803 status_item_ls_data.afsi.last_played = old_last_played;
2804 make_status_items();
2805 return 1;
2806 } case AFHI_CHANGE: {
2807 if (data != current_aft_row)
2808 return 0;
2809 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2810 if (ret < 0)
2811 return ret;
2812 make_status_items();
2813 return 1;
2814 } default:
2815 return 0;
2816 }
2817 }
2818
2819 /**
2820 * Initialize the audio file table.
2821 *
2822 * \param t Pointer to the structure to be initialized.
2823 */
2824 void aft_init(struct afs_table *t)
2825 {
2826 t->open = aft_open;
2827 t->close = aft_close;
2828 t->create = aft_create;
2829 t->event_handler = aft_event_handler;
2830 }