Store chunk info in the afhi column rather than in the chunk column.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
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 <dirent.h> /* readdir() */
10 #include "para.h"
11 #include "error.h"
12 #include "string.h"
13 #include <sys/mman.h>
14 #include <fnmatch.h>
15 #include "afh.h"
16 #include "afs.h"
17 #include "net.h"
18 #include "vss.h"
19 #include "fd.h"
20 #include "ipc.h"
21
22 static struct osl_table *audio_file_table;
23
24 /** The different sorting methods of the ls command. */
25 enum ls_sorting_method {
26 /** -sp (default) */
27 LS_SORT_BY_PATH,
28 /** -ss */
29 LS_SORT_BY_SCORE,
30 /** -sl */
31 LS_SORT_BY_LAST_PLAYED,
32 /** -sn */
33 LS_SORT_BY_NUM_PLAYED,
34 /** -sf */
35 LS_SORT_BY_FREQUENCY,
36 /** -sc */
37 LS_SORT_BY_CHANNELS,
38 /** -si */
39 LS_SORT_BY_IMAGE_ID,
40 /** -sy */
41 LS_SORT_BY_LYRICS_ID,
42 /** -sb */
43 LS_SORT_BY_BITRATE,
44 /** -sd */
45 LS_SORT_BY_DURATION,
46 /** -sa */
47 LS_SORT_BY_AUDIO_FORMAT,
48 /** -sh */
49 LS_SORT_BY_HASH,
50 };
51
52 /** The different listing modes of the ls command. */
53 enum ls_listing_mode {
54 /** Default listing mode. */
55 LS_MODE_SHORT,
56 /** -l or -ll */
57 LS_MODE_LONG,
58 /** -lv */
59 LS_MODE_VERBOSE,
60 /** -lm */
61 LS_MODE_MBOX
62 };
63
64 /** The flags accepted by the ls command. */
65 enum ls_flags {
66 /** -p */
67 LS_FLAG_FULL_PATH = 1,
68 /** -a */
69 LS_FLAG_ADMISSIBLE_ONLY = 2,
70 /** -r */
71 LS_FLAG_REVERSE = 4,
72 };
73
74 /**
75 * The size of the individual output fields of the ls command.
76 *
77 * These depend on the actual content being listed. If, for instance only files
78 * with duration less than an hour are being listed, then the duration with is
79 * made smaller because then the duration is listed as mm:ss rather than
80 * hh:mm:ss.
81 */
82 struct ls_widths {
83 /** size of the score field. */
84 unsigned short score_width;
85 /** size of the image id field. */
86 unsigned short image_id_width;
87 /** size of the lyrics id field. */
88 unsigned short lyrics_id_width;
89 /** size of the bitrate field. */
90 unsigned short bitrate_width;
91 /** size of the frequency field. */
92 unsigned short frequency_width;
93 /** size of the duration field. */
94 unsigned short duration_width;
95 /** size of the num played field. */
96 unsigned short num_played_width;
97 };
98
99 /** Data passed from the ls command handler to its callback function. */
100 struct ls_options {
101 /** The given command line flags. */
102 unsigned flags;
103 /** The sorting method given at the command line. */
104 enum ls_sorting_method sorting;
105 /** The given listing mode (short, long, verbose, mbox). */
106 enum ls_listing_mode mode;
107 /** The arguments passed to the ls command. */
108 char **patterns;
109 /** Number of non-option arguments. */
110 int num_patterns;
111 /** Used for long listing mode to align the output fields. */
112 struct ls_widths widths;
113 /** Size of the \a data array. */
114 uint32_t array_size;
115 /** Number of used entries in the data array. */
116 uint32_t num_matching_paths;
117 /** Array of matching entries. */
118 struct ls_data *data;
119 /** Used to sort the array. */
120 struct ls_data **data_ptr;
121 };
122
123 /**
124 * Describes the layout of the mmapped-afs info struct.
125 *
126 * \sa struct afs_info.
127 */
128 enum afsi_offsets {
129 /** Where .last_played is stored. */
130 AFSI_LAST_PLAYED_OFFSET = 0,
131 /** Storage position of the attributes bitmap. */
132 AFSI_ATTRIBUTES_OFFSET = 8,
133 /** Storage position of the .num_played field. */
134 AFSI_NUM_PLAYED_OFFSET = 16,
135 /** Storage position of the .image_id field. */
136 AFSI_IMAGE_ID_OFFSET = 20,
137 /** Storage position of the .lyrics_id field. */
138 AFSI_LYRICS_ID_OFFSET = 24,
139 /** Storage position of the .audio_format_id field. */
140 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
141 /** 3 bytes reserved space for future usage. */
142 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
143 /** On-disk storage space needed. */
144 AFSI_SIZE = 32
145 };
146
147 /**
148 * Convert a struct afs_info to an osl object.
149 *
150 * \param afsi Pointer to the audio file info to be converted.
151 * \param obj Result pointer.
152 *
153 * \sa load_afsi().
154 */
155 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
156 {
157 char *buf = obj->data;
158
159 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
160 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
161 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
162 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
163 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
164 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
165 afsi->audio_format_id);
166 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
167 }
168
169 /**
170 * Get the audio file selector info struct stored in an osl object.
171 *
172 * \param afsi Points to the audio_file info structure to be filled in.
173 * \param obj The osl object holding the data.
174 *
175 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
176 *
177 * \sa save_afsi().
178 */
179 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
180 {
181 char *buf = obj->data;
182 if (obj->size < AFSI_SIZE)
183 return -E_BAD_AFSI;
184 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
185 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
186 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
187 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
188 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
189 afsi->audio_format_id = read_u8(buf +
190 AFSI_AUDIO_FORMAT_ID_OFFSET);
191 return 1;
192 }
193
194 /** The columns of the audio file table. */
195 enum audio_file_table_columns {
196 /** The hash on the content of the audio file. */
197 AFTCOL_HASH,
198 /** The full path in the filesystem. */
199 AFTCOL_PATH,
200 /** The audio file selector info. */
201 AFTCOL_AFSI,
202 /** The audio format handler info. */
203 AFTCOL_AFHI,
204 /** The chunk table info and the chunk table of the audio file. */
205 AFTCOL_CHUNKS,
206 /** The number of columns of this table. */
207 NUM_AFT_COLUMNS
208 };
209
210 static struct osl_column_description aft_cols[] = {
211 [AFTCOL_HASH] = {
212 .storage_type = OSL_MAPPED_STORAGE,
213 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
214 .name = "hash",
215 .compare_function = osl_hash_compare,
216 .data_size = HASH_SIZE
217 },
218 [AFTCOL_PATH] = {
219 .storage_type = OSL_MAPPED_STORAGE,
220 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
221 .name = "path",
222 .compare_function = string_compare,
223 },
224 [AFTCOL_AFSI] = {
225 .storage_type = OSL_MAPPED_STORAGE,
226 .storage_flags = OSL_FIXED_SIZE,
227 .name = "afs_info",
228 .data_size = AFSI_SIZE
229 },
230 [AFTCOL_AFHI] = {
231 .storage_type = OSL_MAPPED_STORAGE,
232 .name = "afh_info",
233 },
234 [AFTCOL_CHUNKS] = {
235 .storage_type = OSL_DISK_STORAGE,
236 .name = "chunks",
237 }
238 };
239
240 static struct osl_table_description audio_file_table_desc = {
241 .name = "audio_files",
242 .num_columns = NUM_AFT_COLUMNS,
243 .flags = OSL_LARGE_TABLE,
244 .column_descriptions = aft_cols
245 };
246
247 /* We don't want * dot or dot-dot anywhere. */
248 static int verify_dotfile(const char *rest)
249 {
250 /*
251 * The first character was '.', but that has already been discarded, we
252 * now test the rest.
253 */
254 switch (*rest) {
255 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
256 return -1;
257 case '.': /* path start with /foo/.. */
258 if (rest[1] == '\0' || rest[1] == '/')
259 return -1; /* /foo/.. or /foo/../bar are not ok */
260 /* /foo/..bar is ok */
261 }
262 return 1;
263 }
264
265 /*
266 * We fundamentally don't like some paths: We don't want double slashes or
267 * slashes at the end that can make pathnames ambiguous.
268 */
269 static int verify_path(const char *orig_path, char **resolved_path)
270 {
271 char c;
272 size_t len;
273 char *path;
274
275 if (*orig_path != '/') /* we only accept absolute paths */
276 return -E_BAD_PATH;
277 len = strlen(orig_path);
278 *resolved_path = para_strdup(orig_path);
279 path = *resolved_path;
280 while (len > 1 && path[--len] == '/')
281 path[len] = '\0'; /* remove slash at the end */
282 c = *path++;
283 while (c) {
284 if (c == '/') {
285 c = *path++;
286 switch (c) {
287 case '/': /* double slash */
288 goto bad_path;
289 case '.':
290 if (verify_dotfile(path) < 0)
291 goto bad_path;
292 default:
293 continue;
294 }
295 }
296 c = *path++;
297 }
298 return 1;
299 bad_path:
300 free(*resolved_path);
301 return -E_BAD_PATH;
302 }
303
304 /** The on-disk layout of a afhi struct. */
305 enum afhi_offsets {
306 /** Where the number of seconds is stored. */
307 AFHI_SECONDS_TOTAL_OFFSET = 0,
308 /** Position of the bitrate. */
309 AFHI_BITRATE_OFFSET = 4,
310 /** Position of the frequency. */
311 AFHI_FREQUENCY_OFFSET = 8,
312 /** Location of the audio file header. */
313 AFHI_HEADER_OFFSET_OFFSET = 12,
314 /* Length of the audio file header. Zero means: No header. */
315 AFHI_HEADER_LEN_OFFSET = 16,
316 /** The total number of chunks (4 bytes). */
317 CHUNKS_TOTAL_OFFSET = 20,
318 /** The length of the audio file header (4 bytes). */
319 HEADER_LEN_OFFSET = 24,
320 /** The start of the audio file header (4 bytes). */
321 HEADER_OFFSET_OFFSET = 28,
322 /** The seconds part of the chunk time (4 bytes). */
323 CHUNK_TV_TV_SEC_OFFSET = 32,
324 /** The microseconds part of the chunk time (4 bytes). */
325 CHUNK_TV_TV_USEC_OFFSET = 36,
326 /** Number of channels is stored here. (1 byte) */
327 AFHI_CHANNELS_OFFSET = 40,
328 /** EOF timeout in ms. (2 byte) */
329 AFHI_EOF_OFFSET = 41,
330 /** The tag info position. */
331 AFHI_INFO_STRING_OFFSET = 43,
332 /** Minimal on-disk size of a valid afhi struct. */
333 MIN_AFHI_SIZE = 44
334 };
335
336 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
337 {
338 if (!afhi)
339 return 0;
340 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
341 }
342
343 static void save_afhi(struct afh_info *afhi, char *buf)
344 {
345 if (!afhi)
346 return;
347 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
348 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
349 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
350 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
351 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
352 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
353 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
354 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
355 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
356 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
357 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
358 write_u16(buf + AFHI_EOF_OFFSET, tv2ms(&afhi->eof_tv));
359 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
360 }
361
362 static void load_afhi(const char *buf, struct afh_info *afhi)
363 {
364 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
365 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
366 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
367 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
368 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
369 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
370 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
371 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
372 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
373 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
374 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
375 ms2tv(read_u16(buf + AFHI_EOF_OFFSET), &afhi->eof_tv);
376 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
377 }
378
379 static unsigned sizeof_chunk_table(struct afh_info *afhi)
380 {
381 if (!afhi)
382 return 0;
383 return 4 * (afhi->chunks_total + 1);
384 }
385
386 static void save_chunk_table(struct afh_info *afhi, char *buf)
387 {
388 int i;
389
390 for (i = 0; i <= afhi->chunks_total; i++)
391 write_u32(buf + 4 * i, afhi->chunk_table[i]);
392 }
393
394 static void load_chunk_table(struct afh_info *afhi, char *buf)
395 {
396 int i;
397
398 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
399 for (i = 0; i <= afhi->chunks_total; i++)
400 afhi->chunk_table[i] = read_u32(buf + 4 * i);
401 }
402
403 /**
404 * Get the row of the audio file table corresponding to the given path.
405 *
406 * \param path The full path of the audio file.
407 * \param row Result pointer.
408 *
409 * \return The return value of the underlying call to osl_get_row().
410 */
411 int aft_get_row_of_path(const char *path, struct osl_row **row)
412 {
413 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
414
415 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
416 }
417
418 /**
419 * Get the row of the audio file table corresponding to the given hash value.
420 *
421 * \param hash The hash value of the desired audio file.
422 * \param row resul pointer.
423 *
424 * \return The return value of the underlying call to osl_get_row().
425 */
426 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
427 {
428 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
429 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
430 }
431
432 /**
433 * Get the osl object holding the audio file selector info of a row.
434 *
435 * \param row Pointer to a row in the audio file table.
436 * \param obj Result pointer.
437 *
438 * \return The return value of the underlying call to osl_get_object().
439 */
440 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
441 {
442 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
443 }
444
445 /**
446 * Get the osl object holding the audio file selector info, given a path.
447 *
448 *
449 * \param path The full path of the audio file.
450 * \param obj Result pointer.
451 *
452 * \return Positive on success, negative on errors.
453 */
454 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
455 {
456 struct osl_row *row;
457 int ret = aft_get_row_of_path(path, &row);
458 if (ret < 0)
459 return ret;
460 return get_afsi_object_of_row(row, obj);
461 }
462
463 /**
464 * Get the audio file selector info, given a row of the audio file table.
465 *
466 * \param row Pointer to a row in the audio file table.
467 * \param afsi Result pointer.
468 *
469 * \return Positive on success, negative on errors.
470 */
471 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
472 {
473 struct osl_object obj;
474 int ret = get_afsi_object_of_row(row, &obj);
475 if (ret < 0)
476 return ret;
477 return load_afsi(afsi, &obj);
478 }
479
480 /**
481 * Get the audio file selector info, given the path of an audio table.
482 *
483 * \param path The full path of the audio file.
484 * \param afsi Result pointer.
485 *
486 * \return Positive on success, negative on errors.
487 */
488 int get_afsi_of_path(const char *path, struct afs_info *afsi)
489 {
490 struct osl_object obj;
491 int ret = get_afsi_object_of_path(path, &obj);
492 if (ret < 0)
493 return ret;
494 return load_afsi(afsi, &obj);
495 }
496
497 /**
498 * Get the path of an audio file, given a row of the audio file table.
499 *
500 * \param row Pointer to a row in the audio file table.
501 * \param path Result pointer.
502 *
503 * The result is a pointer to mmapped data. The caller must not attempt
504 * to free it.
505 *
506 * \return Standard.
507 */
508 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
509 {
510 struct osl_object path_obj;
511 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
512 &path_obj);
513 if (ret < 0)
514 return ret;
515 *path = path_obj.data;
516 return 1;
517 }
518
519 /**
520 * Get the object containing the hash value of an audio file, given a row.
521 *
522 * \param row Pointer to a row of the audio file table.
523 * \param obj Result pointer.
524 *
525 * \return The return value of the underlying call to osl_get_object().
526 *
527 * \sa get_hash_of_row().
528 */
529 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
530 {
531 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
532 }
533
534 /**
535 * Get the hash value of an audio file, given a row of the audio file table.
536 *
537 * \param row Pointer to a row of the audio file table.
538 * \param hash Result pointer.
539 *
540 * \a hash points to mapped data and must not be freed by the caller.
541 *
542 * \return The return value of the underlying call to
543 * get_hash_object_of_aft_row().
544 */
545 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
546 {
547 struct osl_object obj;
548 int ret = get_hash_object_of_aft_row(row, &obj);
549
550 if (ret < 0)
551 return ret;
552 *hash = obj.data;
553 return 1;
554 }
555
556 /**
557 * Get the audio format handler info, given a row of the audio file table.
558 *
559 * \param row Pointer to a row of the audio file table.
560 * \param afhi Result pointer.
561 *
562 * \return The return value of the underlying call to osl_get_object().
563 *
564 * \sa get_chunk_table_of_row().
565 */
566 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
567 {
568 struct osl_object obj;
569 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
570 &obj);
571 if (ret < 0)
572 return ret;
573 load_afhi(obj.data, afhi);
574 return 1;
575 }
576
577 /* returns shmid on success */
578 static int save_afd(struct audio_file_data *afd)
579 {
580 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
581
582 PARA_DEBUG_LOG("size: %zu\n", size);
583 int shmid, ret = shm_new(size);
584 void *shm_afd;
585 char *buf;
586
587 if (ret < 0)
588 return ret;
589 shmid = ret;
590 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
591 if (ret < 0)
592 goto err;
593 *(struct audio_file_data *)shm_afd = *afd;
594 buf = shm_afd;
595 buf += sizeof(*afd);
596 save_chunk_table(&afd->afhi, buf);
597 shm_detach(shm_afd);
598 return shmid;
599 err:
600 shm_destroy(shmid);
601 return ret;
602 }
603
604 int load_afd(int shmid, struct audio_file_data *afd)
605 {
606 void *shm_afd;
607 char *buf;
608 int ret;
609
610 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
611 if (ret < 0)
612 return ret;
613 *afd = *(struct audio_file_data *)shm_afd;
614 buf = shm_afd;
615 buf += sizeof(*afd);
616 load_chunk_table(&afd->afhi, buf);
617 shm_detach(shm_afd);
618 return 1;
619 }
620
621 /**
622 * Mmap the given audio file and update statistics.
623 *
624 * \param aft_row Determines the audio file to be opened and updated.
625 * \param afd Result pointer.
626 *
627 * On success, the numplayed field of the audio file selector info is increased
628 * and the lastplayed time is set to the current time. Finally, the score of
629 * the audio file is updated.
630 *
631 * \return Positive shmid on success, negative on errors.
632 */
633 int open_and_update_audio_file(struct osl_row *aft_row,
634 struct audio_file_data *afd, long score)
635 {
636 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
637 struct osl_object afsi_obj;
638 struct afs_info old_afsi, new_afsi;
639 int ret = get_hash_of_row(aft_row, &aft_hash);
640 struct afsi_change_event_data aced;
641 struct osl_object map, chunk_table_obj;
642 char *path;
643
644 if (ret < 0)
645 return ret;
646 ret = get_audio_file_path_of_row(aft_row, &path);
647 if (ret < 0)
648 return ret;
649 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
650 if (ret < 0)
651 return ret;
652 ret = load_afsi(&old_afsi, &afsi_obj);
653 if (ret < 0)
654 return ret;
655 ret = get_afhi_of_row(aft_row, &afd->afhi);
656 if (ret < 0)
657 return ret;
658 ret = osl_open_disk_object(audio_file_table, aft_row,
659 AFTCOL_CHUNKS, &chunk_table_obj);
660 if (ret < 0)
661 return ret;
662 ret = mmap_full_file(path, O_RDONLY, &map.data,
663 &map.size, &afd->fd);
664 if (ret < 0)
665 goto err;
666 hash_function(map.data, map.size, file_hash);
667 ret = hash_compare(file_hash, aft_hash);
668 para_munmap(map.data, map.size);
669 if (ret) {
670 ret = -E_HASH_MISMATCH;
671 goto err;
672 }
673 new_afsi = old_afsi;
674 new_afsi.num_played++;
675 new_afsi.last_played = time(NULL);
676 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
677
678 load_chunk_table(&afd->afhi, chunk_table_obj.data);
679 {
680 struct ls_data d = {
681 .afhi = afd->afhi,
682 .afsi = old_afsi,
683 .path = path,
684 .score = score,
685 .hash = file_hash
686 };
687 struct para_buffer pb = {.buf = NULL};
688 ret = make_status_items(&d, &pb);
689 if (ret < 0)
690 goto err;
691 strncpy(afd->verbose_ls_output, pb.buf, VERBOSE_LS_OUTPUT_SIZE);
692 afd->verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE - 1] = '\0';
693 free(pb.buf);
694 }
695 aced.aft_row = aft_row;
696 aced.old_afsi = &old_afsi;
697 afs_event(AFSI_CHANGE, NULL, &aced);
698 ret = save_afd(afd);
699 free(afd->afhi.chunk_table);
700 if (ret < 0)
701 goto err;
702 err:
703 osl_close_disk_object(&chunk_table_obj);
704 return ret;
705 }
706
707 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
708 time_t current_time, enum ls_listing_mode lm)
709 {
710 struct tm t;
711
712 if (!localtime_r((time_t *)seconds, &t))
713 return -E_LOCALTIME;
714 if (lm == LS_MODE_MBOX) {
715 if (!strftime(buf, size, "%c", &t))
716 return -E_STRFTIME;
717 return 1;
718 }
719 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
720 if (!strftime(buf, size, "%b %e %k:%M", &t))
721 return -E_STRFTIME;
722 return 1;
723 }
724 if (!strftime(buf, size, "%b %e %Y", &t))
725 return -E_STRFTIME;
726 return 1;
727 }
728
729 /** Compute the number of (decimal) digits of a number. */
730 #define GET_NUM_DIGITS(x, num) { \
731 typeof((x)) _tmp = PARA_ABS(x); \
732 *num = 1; \
733 if ((x)) \
734 while ((_tmp) > 9) { \
735 (_tmp) /= 10; \
736 (*num)++; \
737 } \
738 }
739
740 static short unsigned get_duration_width(int seconds)
741 {
742 short unsigned width;
743 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
744
745 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
746 return 4 + (mins > 9);
747 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
748 GET_NUM_DIGITS(hours, &width);
749 return width + 6;
750 }
751
752 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
753 {
754 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
755 short unsigned max_width;
756
757 if (!hours) { /* m:ss or mm:ss */
758 max_width = opts->mode == LS_MODE_LONG?
759 opts->widths.duration_width : 4;
760 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
761 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
762 max_width = opts->mode == LS_MODE_LONG?
763 opts->widths.duration_width : 7;
764 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
765 seconds % 60);
766 }
767 }
768
769 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
770 {
771 char *att_text, *att_lines;
772
773 get_attribute_text(&afsi->attributes, " ", &att_text);
774 if (!att_text)
775 return para_strdup(att_bitmap);
776 att_lines = make_message("%s: %s\n%s: %s",
777 status_item_list[SI_ATTRIBUTES_BITMAP], att_bitmap,
778 status_item_list[SI_ATTRIBUTES_TXT], att_text);
779 free(att_text);
780 return att_lines;
781 }
782
783 static char *make_lyrics_lines(struct afs_info *afsi)
784 {
785 char *lyrics_name;
786
787 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
788 return make_message("lyrics_id: %u\nlyrics_name: %s\n",
789 afsi->lyrics_id, lyrics_name? lyrics_name : "(none)");
790 }
791
792 static char *make_image_lines(struct afs_info *afsi)
793 {
794 char *image_name;
795 img_get_name_by_id(afsi->image_id, &image_name);
796 return make_message("image_id: %u\nimage_name: %s\n",
797 afsi->image_id, image_name? image_name : "(none)");
798 }
799
800 static char *make_filename_lines(const char *path, unsigned flags)
801 {
802 char *basename, *dirname;
803 char *ret;
804
805 if (!(flags & LS_FLAG_FULL_PATH))
806 return make_message("%s: %s\n%s:\n", "basename", path,
807 "dir");
808 basename = para_basename(path),
809 dirname = para_dirname(path);
810 ret = make_message("%s: %s\n%s: %s\n%s: %s\n", "path", path,
811 "dir", dirname, "basename", basename);
812 free(basename);
813 free(dirname);
814 return ret;
815 }
816
817 static int print_list_item(struct ls_data *d, struct ls_options *opts,
818 struct para_buffer *b, time_t current_time)
819 {
820 int ret;
821 char att_buf[65];
822 char last_played_time[30];
823 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
824 char score_buf[30] = "";
825 struct afs_info *afsi = &d->afsi;
826 struct afh_info *afhi = &d->afhi;
827 struct ls_widths *w = &opts->widths;
828 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
829 char asc_hash[2 * HASH_SIZE + 1];
830 char *att_lines, *lyrics_lines, *image_lines, *filename_lines;
831
832 if (opts->mode == LS_MODE_SHORT) {
833 para_printf(b, "%s\n", d->path);
834 return 1;
835 }
836 get_attribute_bitmap(&afsi->attributes, att_buf);
837 ret = get_local_time(&afsi->last_played, last_played_time,
838 sizeof(last_played_time), current_time, opts->mode);
839 if (ret < 0)
840 return ret;
841 get_duration_buf(afhi->seconds_total, duration_buf, opts);
842 if (have_score) {
843 if (opts->mode == LS_MODE_LONG)
844 sprintf(score_buf, "%*li ", w->score_width, d->score);
845 else
846 sprintf(score_buf, "%li ", d->score);
847 }
848
849 if (opts->mode == LS_MODE_LONG) {
850 para_printf(b,
851 "%s" /* score */
852 "%s " /* attributes */
853 "%*d " /* image_id */
854 "%*d " /* lyrics_id */
855 "%*d " /* bitrate */
856 "%s " /* audio format */
857 "%*d " /* frequency */
858 "%d " /* channels */
859 "%s " /* duration */
860 "%*d " /* num_played */
861 "%s " /* last_played */
862 "%s\n", /* path */
863 score_buf,
864 att_buf,
865 w->image_id_width, afsi->image_id,
866 w->lyrics_id_width, afsi->lyrics_id,
867 w->bitrate_width, afhi->bitrate,
868 audio_format_name(afsi->audio_format_id),
869 w->frequency_width, afhi->frequency,
870 afhi->channels,
871 duration_buf,
872 w->num_played_width, afsi->num_played,
873 last_played_time,
874 d->path
875 );
876 return 1;
877 }
878 hash_to_asc(d->hash, asc_hash);
879 att_lines = make_attribute_lines(att_buf, afsi);
880 lyrics_lines = make_lyrics_lines(afsi);
881 image_lines = make_image_lines(afsi);
882 filename_lines = make_filename_lines(d->path, opts->flags);
883 if (opts->mode == LS_MODE_VERBOSE) {
884 para_printf(b,
885 "%s" /* filename stuff */
886 "%s%s%s" /* score */
887 "%s\n" /* attributes */
888 "hash: %s\n"
889 "%s" /* image id, image name */
890 "%s" /* lyrics */
891 "%s: %dkbit/s\n" /* bitrate */
892 "format: %s\n"
893 "%s: %dHz\n" /* frequency */
894 "channels: %d\n"
895 "duration: %s\n"
896 "seconds_total: %lu\n"
897 "num_played: %d\n"
898 "last_played: %s\n"
899 "%s\n", /* tag info */
900 filename_lines,
901 have_score? "score: " : "", score_buf,
902 have_score? "\n" : "",
903 att_lines,
904 asc_hash,
905 image_lines,
906 lyrics_lines,
907 status_item_list[SI_BITRATE], afhi->bitrate,
908 audio_format_name(afsi->audio_format_id),
909 status_item_list[SI_FREQUENCY], afhi->frequency,
910 afhi->channels,
911 duration_buf,
912 afhi->seconds_total,
913 afsi->num_played,
914 last_played_time,
915 afhi->info_string
916 );
917 } else { /* mbox mode */
918 struct osl_object lyrics_def;
919 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
920 para_printf(b,
921 "From foo@localhost %s\n"
922 "Received: from\nTo: bar\nFrom: a\n"
923 "Subject: %s\n\n" /* path */
924 "%s%s%s" /* score */
925 "%s\n" /* attributes */
926 "hash: %s\n"
927 "%s\n" /* image id, image name */
928 "lyrics_id: %s\n"
929 "bitrate: %dkbit/s\n"
930 "format: %s\n"
931 "frequency: %dHz\n"
932 "channels: %d\n"
933 "duration: %s\n"
934 "num_played: %d\n"
935 "%s\n" /* tag info */
936 "%s%s\n",
937 last_played_time,
938 d->path,
939 have_score? "score: " : "", score_buf,
940 have_score? "\n" : "",
941 att_lines,
942 asc_hash,
943 image_lines,
944 lyrics_lines,
945 afhi->bitrate,
946 audio_format_name(afsi->audio_format_id),
947 afhi->frequency,
948 afhi->channels,
949 duration_buf,
950 afsi->num_played,
951 afhi->info_string,
952 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
953 lyrics_def.data? (char *)lyrics_def.data : ""
954 );
955 if (lyrics_def.data)
956 osl_close_disk_object(lyrics_def.data);
957 }
958 free(att_lines);
959 free(lyrics_lines);
960 free(image_lines);
961 free(filename_lines);
962 return 1;
963 }
964
965 int make_status_items(struct ls_data *d, struct para_buffer *pb)
966 {
967 struct ls_options opts = {
968 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
969 .mode = LS_MODE_VERBOSE,
970 };
971 time_t current_time;
972
973 time(&current_time);
974 return print_list_item(d, &opts, pb, current_time);
975 }
976
977
978 static int ls_audio_format_compare(const void *a, const void *b)
979 {
980 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
981 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
982 }
983
984 static int ls_duration_compare(const void *a, const void *b)
985 {
986 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
987 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
988 }
989
990 static int ls_bitrate_compare(const void *a, const void *b)
991 {
992 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
993 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
994 }
995
996 static int ls_lyrics_id_compare(const void *a, const void *b)
997 {
998 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
999 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1000 }
1001
1002 static int ls_image_id_compare(const void *a, const void *b)
1003 {
1004 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1005 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1006 }
1007
1008 static int ls_channels_compare(const void *a, const void *b)
1009 {
1010 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1011 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1012 }
1013
1014 static int ls_frequency_compare(const void *a, const void *b)
1015 {
1016 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1017 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1018 }
1019
1020 static int ls_num_played_compare(const void *a, const void *b)
1021 {
1022 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1023 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1024 }
1025
1026 static int ls_last_played_compare(const void *a, const void *b)
1027 {
1028 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1029 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1030 }
1031
1032 static int ls_score_compare(const void *a, const void *b)
1033 {
1034 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1035 return NUM_COMPARE(d1->score, d2->score);
1036 }
1037
1038 static int ls_path_compare(const void *a, const void *b)
1039 {
1040 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1041 return strcmp(d1->path, d2->path);
1042 }
1043
1044 static int sort_matching_paths(struct ls_options *options)
1045 {
1046 size_t nmemb = options->num_matching_paths;
1047 size_t size = sizeof(*options->data_ptr);
1048 int (*compar)(const void *, const void *);
1049 int i;
1050
1051 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1052 for (i = 0; i < nmemb; i++)
1053 options->data_ptr[i] = options->data + i;
1054
1055 /* In these cases the array is already sorted */
1056 if (options->sorting == LS_SORT_BY_PATH
1057 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1058 && (options->flags & LS_FLAG_FULL_PATH))
1059 return 1;
1060 if (options->sorting == LS_SORT_BY_SCORE &&
1061 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1062 return 1;
1063
1064 switch (options->sorting) {
1065 case LS_SORT_BY_PATH:
1066 compar = ls_path_compare; break;
1067 case LS_SORT_BY_SCORE:
1068 compar = ls_score_compare; break;
1069 case LS_SORT_BY_LAST_PLAYED:
1070 compar = ls_last_played_compare; break;
1071 case LS_SORT_BY_NUM_PLAYED:
1072 compar = ls_num_played_compare; break;
1073 case LS_SORT_BY_FREQUENCY:
1074 compar = ls_frequency_compare; break;
1075 case LS_SORT_BY_CHANNELS:
1076 compar = ls_channels_compare; break;
1077 case LS_SORT_BY_IMAGE_ID:
1078 compar = ls_image_id_compare; break;
1079 case LS_SORT_BY_LYRICS_ID:
1080 compar = ls_lyrics_id_compare; break;
1081 case LS_SORT_BY_BITRATE:
1082 compar = ls_bitrate_compare; break;
1083 case LS_SORT_BY_DURATION:
1084 compar = ls_duration_compare; break;
1085 case LS_SORT_BY_AUDIO_FORMAT:
1086 compar = ls_audio_format_compare; break;
1087 default:
1088 return -E_BAD_SORT;
1089 }
1090 qsort(options->data_ptr, nmemb, size, compar);
1091 return 1;
1092 }
1093
1094 /* row is either an aft_row or a row of the score table */
1095 /* TODO: Only compute widths if we need them */
1096 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1097 {
1098 int ret, i;
1099 struct ls_options *options = ls_opts;
1100 struct ls_data *d;
1101 struct ls_widths *w;
1102 unsigned short num_digits;
1103 unsigned tmp;
1104 struct osl_row *aft_row;
1105 long score;
1106 char *path;
1107
1108 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1109 ret = get_score_and_aft_row(row, &score, &aft_row);
1110 if (ret < 0)
1111 return ret;
1112 } else
1113 aft_row = row;
1114 ret = get_audio_file_path_of_row(aft_row, &path);
1115 if (ret < 0)
1116 return ret;
1117 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1118 char *p = strrchr(path, '/');
1119 if (p)
1120 path = p + 1;
1121 }
1122 if (options->num_patterns) {
1123 for (i = 0; i < options->num_patterns; i++) {
1124 ret = fnmatch(options->patterns[i], path, 0);
1125 if (!ret)
1126 break;
1127 if (ret == FNM_NOMATCH)
1128 continue;
1129 return -E_FNMATCH;
1130 }
1131 if (i >= options->num_patterns) /* no match */
1132 return 1;
1133 }
1134 tmp = options->num_matching_paths++;
1135 if (options->num_matching_paths > options->array_size) {
1136 options->array_size++;
1137 options->array_size *= 2;
1138 options->data = para_realloc(options->data, options->array_size
1139 * sizeof(*options->data));
1140 }
1141 d = options->data + tmp;
1142 ret = get_afsi_of_row(aft_row, &d->afsi);
1143 if (ret < 0)
1144 return ret;
1145 ret = get_afhi_of_row(aft_row, &d->afhi);
1146 if (ret < 0)
1147 return ret;
1148 d->path = path;
1149 ret = get_hash_of_row(aft_row, &d->hash);
1150 if (ret < 0)
1151 return ret;
1152 w = &options->widths;
1153 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1154 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1155 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1156 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1157 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1158 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1159 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1160 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1161 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1162 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1163 /* get the number of chars to print this amount of time */
1164 tmp = get_duration_width(d->afhi.seconds_total);
1165 w->duration_width = PARA_MAX(w->duration_width, tmp);
1166 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1167 GET_NUM_DIGITS(score, &num_digits);
1168 num_digits++; /* add one for the sign (space or "-") */
1169 w->score_width = PARA_MAX(w->score_width, num_digits);
1170 d->score = score;
1171 }
1172 return 1;
1173 }
1174
1175 static int com_ls_callback(const struct osl_object *query,
1176 struct osl_object *ls_output)
1177 {
1178 struct ls_options *opts = query->data;
1179 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1180 struct para_buffer b = {.buf = NULL, .size = 0};
1181 int i = 0, ret;
1182 time_t current_time;
1183
1184
1185 if (opts->num_patterns) {
1186 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1187 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1188 opts->patterns[i] = p;
1189 p += strlen(p) + 1;
1190 }
1191 } else
1192 opts->patterns = NULL;
1193 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1194 ret = admissible_file_loop(opts, prepare_ls_row);
1195 else
1196 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1197 prepare_ls_row);
1198 if (ret < 0)
1199 goto out;
1200 ret = opts->num_patterns? -E_NO_MATCH : 0;
1201 if (!opts->num_matching_paths)
1202 goto out;
1203 ret = sort_matching_paths(opts);
1204 if (ret < 0)
1205 goto out;
1206 time(&current_time);
1207 if (opts->flags & LS_FLAG_REVERSE)
1208 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1209 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1210 if (ret < 0)
1211 break;
1212 }
1213 else
1214 for (i = 0; i < opts->num_matching_paths; i++) {
1215 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1216 if (ret < 0)
1217 break;
1218 }
1219 ret = 1;
1220 out:
1221 ls_output->data = b.buf;
1222 ls_output->size = b.size;
1223 free(opts->data);
1224 free(opts->data_ptr);
1225 free(opts->patterns);
1226 return ret;
1227 }
1228
1229 /*
1230 * TODO: flags -h (sort by hash)
1231 */
1232 int com_ls(int fd, int argc, char * const * const argv)
1233 {
1234 int i, ret;
1235 unsigned flags = 0;
1236 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1237 enum ls_listing_mode mode = LS_MODE_SHORT;
1238 struct ls_options opts = {.patterns = NULL};
1239 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1240 ls_output;
1241
1242 for (i = 1; i < argc; i++) {
1243 const char *arg = argv[i];
1244 if (arg[0] != '-')
1245 break;
1246 if (!strcmp(arg, "--")) {
1247 i++;
1248 break;
1249 }
1250 if (!strncmp(arg, "-l", 2)) {
1251 if (!*(arg + 2)) {
1252 mode = LS_MODE_LONG;
1253 continue;
1254 }
1255 if (*(arg + 3))
1256 return -E_AFT_SYNTAX;
1257 switch(*(arg + 2)) {
1258 case 's':
1259 mode = LS_MODE_SHORT;
1260 continue;
1261 case 'l':
1262 mode = LS_MODE_LONG;
1263 continue;
1264 case 'v':
1265 mode = LS_MODE_VERBOSE;
1266 continue;
1267 case 'm':
1268 mode = LS_MODE_MBOX;
1269 continue;
1270 default:
1271 return -E_AFT_SYNTAX;
1272 }
1273 }
1274 if (!strcmp(arg, "-p")) {
1275 flags |= LS_FLAG_FULL_PATH;
1276 continue;
1277 }
1278 if (!strcmp(arg, "-a")) {
1279 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1280 continue;
1281 }
1282 if (!strcmp(arg, "-r")) {
1283 flags |= LS_FLAG_REVERSE;
1284 continue;
1285 }
1286 if (!strncmp(arg, "-s", 2)) {
1287 if (!*(arg + 2) || *(arg + 3))
1288 return -E_AFT_SYNTAX;
1289 switch(*(arg + 2)) {
1290 case 'p':
1291 sort = LS_SORT_BY_PATH;
1292 continue;
1293 case 's': /* -ss implies -a */
1294 sort = LS_SORT_BY_SCORE;
1295 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1296 continue;
1297 case 'l':
1298 sort = LS_SORT_BY_LAST_PLAYED;
1299 continue;
1300 case 'n':
1301 sort = LS_SORT_BY_NUM_PLAYED;
1302 continue;
1303 case 'f':
1304 sort = LS_SORT_BY_FREQUENCY;
1305 continue;
1306 case 'c':
1307 sort = LS_SORT_BY_CHANNELS;
1308 continue;
1309 case 'i':
1310 sort = LS_SORT_BY_IMAGE_ID;
1311 continue;
1312 case 'y':
1313 sort = LS_SORT_BY_LYRICS_ID;
1314 continue;
1315 case 'b':
1316 sort = LS_SORT_BY_BITRATE;
1317 continue;
1318 case 'd':
1319 sort = LS_SORT_BY_DURATION;
1320 continue;
1321 case 'a':
1322 sort = LS_SORT_BY_AUDIO_FORMAT;
1323 continue;
1324 default:
1325 return -E_AFT_SYNTAX;
1326 }
1327 }
1328 return -E_AFT_SYNTAX;
1329 }
1330 opts.flags = flags;
1331 opts.sorting = sort;
1332 opts.mode = mode;
1333 opts.num_patterns = argc - i;
1334 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1335 argv + i, com_ls_callback, &ls_output);
1336 if (ret > 0) {
1337 ret = send_buffer(fd, (char *)ls_output.data);
1338 free(ls_output.data);
1339 }
1340 return ret;
1341 }
1342
1343 /**
1344 * Call the given function for each file in the audio file table.
1345 *
1346 * \param private_data An arbitrary data pointer, passed to \a func.
1347 * \param func The custom function to be called.
1348 *
1349 * \return The return value of the underlying call to osl_rbtree_loop().
1350 */
1351 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1352 {
1353 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1354 func);
1355 }
1356
1357 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1358 {
1359 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1360 struct osl_row *row;
1361
1362 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1363 return row;
1364 }
1365
1366 enum aft_row_offsets {
1367 AFTROW_AFHI_OFFSET_POS = 0,
1368 AFTROW_CHUNKS_OFFSET_POS = 2,
1369 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1370 AFTROW_FLAGS_OFFSET = 5,
1371 AFTROW_HASH_OFFSET = 9,
1372 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1373 };
1374
1375 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1376 * In this case, afhi won't be stored in the buffer */
1377 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1378 struct afh_info *afhi, uint32_t flags,
1379 uint8_t audio_format_num, struct osl_object *obj)
1380 {
1381 size_t path_len = strlen(path) + 1;
1382 size_t afhi_size = sizeof_afhi_buf(afhi);
1383 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1384 + sizeof_chunk_table(afhi);
1385 char *buf = para_malloc(size);
1386 uint16_t pos;
1387
1388 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1389 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1390
1391 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1392 strcpy(buf + AFTROW_PATH_OFFSET, path);
1393
1394 pos = AFTROW_PATH_OFFSET + path_len;
1395 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1396 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1397 pos + afhi_size - 1);
1398 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1399 save_afhi(afhi, buf + pos);
1400
1401 pos += afhi_size;
1402 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1403 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1404 save_chunk_table(afhi, buf + pos);
1405 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1406 obj->data = buf;
1407 obj->size = size;
1408 }
1409
1410 /*
1411 input:
1412 ~~~~~~
1413 HS: hash sister
1414 PB: path brother
1415 F: force flag given
1416
1417 output:
1418 ~~~~~~~
1419 AFHI: whether afhi and chunk table are computed and sent
1420 ACTION: table modifications to be performed
1421
1422 +---+----+-----+------+---------------------------------------------------+
1423 | HS | PB | F | AFHI | ACTION
1424 +---+----+-----+------+---------------------------------------------------+
1425 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1426 | | update path, keep afsi
1427 +---+----+-----+------+---------------------------------------------------+
1428 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1429 | | otherwise: remove PB, HS: update path, keep afhi,
1430 | | afsi.
1431 +---+----+-----+------+---------------------------------------------------+
1432 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1433 | | HS, keep afsi
1434 +---+----+-----+------+---------------------------------------------------+
1435 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1436 +---+----+-----+------+---------------------------------------------------+
1437 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1438 | | (force has no effect)
1439 +---+----+-----+------+---------------------------------------------------+
1440 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1441 +---+----+-----+------+---------------------------------------------------+
1442 | N | N | Y | Y | (new file) create new entry (force has no effect)
1443 +---+----+-----+------+---------------------------------------------------+
1444 | N | N | N | Y | (new file) create new entry
1445 +---+----+-----+------+---------------------------------------------------+
1446
1447 afhi <=> force or no HS
1448
1449 */
1450
1451 /** Flags passed to the add command. */
1452 enum com_add_flags {
1453 /** Skip paths that exist already. */
1454 ADD_FLAG_LAZY = 1,
1455 /** Force adding. */
1456 ADD_FLAG_FORCE = 2,
1457 /** Print what is being done. */
1458 ADD_FLAG_VERBOSE = 4,
1459 /** Try to add files with unknown suffixes. */
1460 ADD_FLAG_ALL = 8,
1461 };
1462
1463 static int com_add_callback(const struct osl_object *query,
1464 struct osl_object *result)
1465 {
1466 char *buf = query->data, *path;
1467 struct osl_row *pb, *aft_row;
1468 struct osl_row *hs;
1469 struct osl_object objs[NUM_AFT_COLUMNS];
1470 HASH_TYPE *hash;
1471 char asc[2 * HASH_SIZE + 1];
1472 int ret;
1473 char afsi_buf[AFSI_SIZE];
1474 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1475 struct afs_info default_afsi = {.last_played = 0};
1476 struct para_buffer msg = {.buf = NULL};
1477
1478 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1479 hash_to_asc(hash, asc);;
1480 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1481 objs[AFTCOL_HASH].size = HASH_SIZE;
1482
1483 path = buf + AFTROW_PATH_OFFSET;
1484 objs[AFTCOL_PATH].data = path;
1485 objs[AFTCOL_PATH].size = strlen(path) + 1;
1486
1487 PARA_INFO_LOG("request to add %s\n", path);
1488 hs = find_hash_sister(hash);
1489 ret = aft_get_row_of_path(path, &pb);
1490 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1491 return ret;
1492 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1493 if (flags & ADD_FLAG_VERBOSE)
1494 para_printf(&msg, "ignoring duplicate\n");
1495 ret = 1;
1496 goto out;
1497 }
1498 if (hs && hs != pb) {
1499 struct osl_object obj;
1500 if (pb) { /* hs trumps pb, remove pb */
1501 if (flags & ADD_FLAG_VERBOSE)
1502 para_printf(&msg, "removing path brother\n");
1503 ret = osl_del_row(audio_file_table, pb);
1504 if (ret < 0)
1505 goto out;
1506 pb = NULL;
1507 }
1508 /* file rename, update hs' path */
1509 if (flags & ADD_FLAG_VERBOSE) {
1510 ret = osl_get_object(audio_file_table, hs,
1511 AFTCOL_PATH, &obj);
1512 if (ret < 0)
1513 goto out;
1514 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1515 }
1516 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1517 &objs[AFTCOL_PATH]);
1518 if (ret < 0)
1519 goto out;
1520 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1521 if (!(flags & ADD_FLAG_FORCE))
1522 goto out;
1523 }
1524 /* no hs or force mode, child must have sent afhi */
1525 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1526 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1527
1528 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1529 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1530 ret = -E_NO_AFHI;
1531 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1532 goto out;
1533 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1534 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1535 if (pb && !hs) { /* update pb's hash */
1536 char old_asc[2 * HASH_SIZE + 1];
1537 HASH_TYPE *old_hash;
1538 ret = get_hash_of_row(pb, &old_hash);
1539 if (ret < 0)
1540 goto out;
1541 hash_to_asc(old_hash, old_asc);
1542 if (flags & ADD_FLAG_VERBOSE)
1543 para_printf(&msg, "file change: %s -> %s\n",
1544 old_asc, asc);
1545 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1546 &objs[AFTCOL_HASH]);
1547 if (ret < 0)
1548 goto out;
1549 }
1550 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1551 struct osl_row *row = pb? pb : hs;
1552 /* update afhi and chunk_table */
1553 if (flags & ADD_FLAG_VERBOSE)
1554 para_printf(&msg, "updating afhi and chunk table\n");
1555 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1556 &objs[AFTCOL_AFHI]);
1557 if (ret < 0)
1558 goto out;
1559 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1560 &objs[AFTCOL_CHUNKS]);
1561 if (ret < 0)
1562 goto out;
1563 afs_event(AFHI_CHANGE, &msg, row);
1564 goto out;
1565 }
1566 /* new entry, use default afsi */
1567 if (flags & ADD_FLAG_VERBOSE)
1568 para_printf(&msg, "new file\n");
1569 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1570 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1571
1572 objs[AFTCOL_AFSI].data = &afsi_buf;
1573 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1574 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1575 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1576 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1577 out:
1578 if (ret < 0)
1579 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1580 if (!msg.buf)
1581 return 0;
1582 result->data = msg.buf;
1583 result->size = msg.size;
1584 return 1;
1585 }
1586
1587 /** Used by com_add(). */
1588 struct private_add_data {
1589 /** The socket file descriptor. */
1590 int fd;
1591 /** The given add flags. */
1592 uint32_t flags;
1593 };
1594
1595 static int path_brother_callback(const struct osl_object *query,
1596 struct osl_object *result)
1597 {
1598 char *path = query->data;
1599 struct osl_row *path_brother;
1600 int ret = aft_get_row_of_path(path, &path_brother);
1601 if (ret < 0)
1602 return ret;
1603 result->data = para_malloc(sizeof(path_brother));
1604 result->size = sizeof(path_brother);
1605 *(struct osl_row **)(result->data) = path_brother;
1606 return 1;
1607 }
1608
1609 static int hash_sister_callback(const struct osl_object *query,
1610 struct osl_object *result)
1611 {
1612 HASH_TYPE *hash = query->data;
1613 struct osl_row *hash_sister;
1614
1615 hash_sister = find_hash_sister(hash);
1616 if (!hash_sister)
1617 return -E_RB_KEY_NOT_FOUND;
1618 result->data = para_malloc(sizeof(hash_sister));
1619 result->size = sizeof(hash_sister);
1620 *(struct osl_row **)(result->data) = hash_sister;
1621 return 1;
1622 }
1623
1624 static int add_one_audio_file(const char *path, const void *private_data)
1625 {
1626 int ret, ret2;
1627 uint8_t format_num = -1;
1628 const struct private_add_data *pad = private_data;
1629 struct afh_info afhi, *afhi_ptr = NULL;
1630 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1631 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1632 HASH_TYPE hash[HASH_SIZE];
1633
1634 afhi.header_offset = 0;
1635 afhi.header_len = 0;
1636 ret = guess_audio_format(path);
1637 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1638 goto out_free;
1639 query.data = (char *)path;
1640 query.size = strlen(path) + 1;
1641 ret = send_callback_request(path_brother_callback, &query, &result);
1642 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1643 goto out_free;
1644 if (ret >= 0) {
1645 pb = *(struct osl_row **)result.data;
1646 free(result.data);
1647 }
1648 ret = 1;
1649 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1650 if (pad->flags & ADD_FLAG_VERBOSE)
1651 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1652 goto out_free;
1653 }
1654 /* We still want to add this file. Compute its hash. */
1655 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1656 if (ret < 0)
1657 goto out_free;
1658 hash_function(map.data, map.size, hash);
1659
1660 /* Check whether database contains file with the same hash. */
1661 query.data = hash;
1662 query.size = HASH_SIZE;
1663 ret = send_callback_request(hash_sister_callback, &query, &result);
1664 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1665 goto out_free;
1666 if (ret >= 0) {
1667 hs = *(struct osl_row **)result.data;
1668 free(result.data);
1669 }
1670 /* Return success if we already know this file. */
1671 ret = 1;
1672 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1673 if (pad->flags & ADD_FLAG_VERBOSE)
1674 ret = send_va_buffer(pad->fd,
1675 "%s exists, not forcing update\n", path);
1676 goto out_unmap;
1677 }
1678 /*
1679 * we won't recalculate the audio format info and the chunk table if
1680 * there is a hash sister unless in FORCE mode.
1681 */
1682 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1683 ret = compute_afhi(path, map.data, map.size, &afhi);
1684 if (ret < 0)
1685 goto out_unmap;
1686 format_num = ret;
1687 afhi_ptr = &afhi;
1688 }
1689 if (pad->flags & ADD_FLAG_VERBOSE) {
1690 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1691 if (ret < 0)
1692 goto out_unmap;
1693 }
1694 munmap(map.data, map.size);
1695 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1696 /* Ask afs to consider this entry for adding. */
1697 ret = send_callback_request(com_add_callback, &obj, &result);
1698 if (ret > 0) {
1699 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1700 free(result.data);
1701 if (ret >= 0 && ret2 < 0)
1702 ret = ret2;
1703 }
1704 goto out_free;
1705
1706 out_unmap:
1707 munmap(map.data, map.size);
1708 out_free:
1709 if (ret < 0 && ret != -E_SEND)
1710 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1711 PARA_STRERROR(-ret));
1712 free(obj.data);
1713 if (afhi_ptr)
1714 free(afhi_ptr->chunk_table);
1715 /* it's not an error if not all files could be added */
1716 return ret == -E_SEND? ret : 1;
1717 }
1718
1719 int com_add(int fd, int argc, char * const * const argv)
1720 {
1721 int i, ret;
1722 struct private_add_data pad = {.fd = fd, .flags = 0};
1723 struct stat statbuf;
1724
1725 for (i = 1; i < argc; i++) {
1726 const char *arg = argv[i];
1727 if (arg[0] != '-')
1728 break;
1729 if (!strcmp(arg, "--")) {
1730 i++;
1731 break;
1732 }
1733 if (!strcmp(arg, "-a")) {
1734 pad.flags |= ADD_FLAG_ALL;
1735 continue;
1736 }
1737 if (!strcmp(arg, "-l")) {
1738 pad.flags |= ADD_FLAG_LAZY;
1739 continue;
1740 }
1741 if (!strcmp(arg, "-f")) {
1742 pad.flags |= ADD_FLAG_FORCE;
1743 continue;
1744 }
1745 if (!strcmp(arg, "-v")) {
1746 pad.flags |= ADD_FLAG_VERBOSE;
1747 continue;
1748 }
1749 }
1750 if (argc <= i)
1751 return -E_AFT_SYNTAX;
1752 for (; i < argc; i++) {
1753 char *path;
1754 ret = verify_path(argv[i], &path);
1755 if (ret < 0) {
1756 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1757 if (ret < 0)
1758 return ret;
1759 continue;
1760 }
1761 ret = stat(path, &statbuf);
1762 if (ret < 0) {
1763 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1764 strerror(errno));
1765 free(path);
1766 if (ret < 0)
1767 return ret;
1768 continue;
1769 }
1770 if (S_ISDIR(statbuf.st_mode))
1771 ret = for_each_file_in_dir(path, add_one_audio_file,
1772 &pad);
1773 else
1774 ret = add_one_audio_file(path, &pad);
1775 if (ret < 0) {
1776 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1777 free(path);
1778 return ret;
1779 }
1780 free(path);
1781 }
1782 return 1;
1783
1784 }
1785
1786 /**
1787 * Flags used by the touch command.
1788 *
1789 * \sa com_touch().
1790 */
1791 enum touch_flags {
1792 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1793 TOUCH_FLAG_FNM_PATHNAME = 1,
1794 /** Activates verbose mode. */
1795 TOUCH_FLAG_VERBOSE = 2
1796 };
1797
1798 /** Options used by com_touch(). */
1799 struct com_touch_options {
1800 /** New num_played value. */
1801 int32_t num_played;
1802 /** New last played count. */
1803 int64_t last_played;
1804 /** new lyrics id. */
1805 int32_t lyrics_id;
1806 /** new image id. */
1807 int32_t image_id;
1808 /** command line flags (see \ref touch_flags). */
1809 unsigned flags;
1810 };
1811
1812 /** Data passed to the action handler of com_touch(). */
1813 struct touch_action_data {
1814 /** Command line options (see \ref com_touch_options). */
1815 struct com_touch_options *cto;
1816 /** Message buffer. */
1817 struct para_buffer pb;
1818 };
1819
1820 static int touch_audio_file(__a_unused struct osl_table *table,
1821 struct osl_row *row, const char *name, void *data)
1822 {
1823 struct touch_action_data *tad = data;
1824 struct osl_object obj;
1825 struct afs_info old_afsi, new_afsi;
1826 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1827 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1828 struct afsi_change_event_data aced;
1829
1830 ret = get_afsi_object_of_row(row, &obj);
1831 if (ret < 0) {
1832 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1833 return 1;
1834 }
1835 ret = load_afsi(&old_afsi, &obj);
1836 if (ret < 0) {
1837 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1838 return 1;
1839 }
1840 new_afsi = old_afsi;
1841 if (no_options) {
1842 new_afsi.num_played++;
1843 new_afsi.last_played = time(NULL);
1844 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1845 para_printf(&tad->pb, "%s: num_played = %u, "
1846 "last_played = now()\n", name,
1847 new_afsi.num_played);
1848 } else {
1849 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1850 para_printf(&tad->pb, "touching %s\n", name);
1851 if (tad->cto->lyrics_id >= 0)
1852 new_afsi.lyrics_id = tad->cto->lyrics_id;
1853 if (tad->cto->image_id >= 0)
1854 new_afsi.image_id = tad->cto->image_id;
1855 if (tad->cto->num_played >= 0)
1856 new_afsi.num_played = tad->cto->num_played;
1857 if (tad->cto->last_played >= 0)
1858 new_afsi.last_played = tad->cto->last_played;
1859 }
1860 save_afsi(&new_afsi, &obj); /* in-place update */
1861 aced.aft_row = row;
1862 aced.old_afsi = &old_afsi;
1863 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1864 return 1;
1865 }
1866
1867 static int com_touch_callback(const struct osl_object *query,
1868 struct osl_object *result)
1869 {
1870 struct touch_action_data tad = {.cto = query->data};
1871 int ret;
1872 struct pattern_match_data pmd = {
1873 .table = audio_file_table,
1874 .loop_col_num = AFTCOL_HASH,
1875 .match_col_num = AFTCOL_PATH,
1876 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1877 .size = query->size - sizeof(*tad.cto)},
1878 .data = &tad,
1879 .action = touch_audio_file
1880 };
1881 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1882 pmd.fnmatch_flags |= FNM_PATHNAME;
1883 ret = for_each_matching_row(&pmd);
1884 if (ret < 0)
1885 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1886 if (tad.pb.buf) {
1887 result->data = tad.pb.buf;
1888 result->size = tad.pb.size;
1889 return 1;
1890 }
1891 return ret < 0? ret : 0;
1892 }
1893
1894 int com_touch(int fd, int argc, char * const * const argv)
1895 {
1896 struct com_touch_options cto = {
1897 .num_played = -1,
1898 .last_played = -1,
1899 .lyrics_id = -1,
1900 .image_id = -1
1901 };
1902 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1903 result;
1904 int i, ret;
1905
1906
1907 for (i = 1; i < argc; i++) {
1908 const char *arg = argv[i];
1909 if (arg[0] != '-')
1910 break;
1911 if (!strcmp(arg, "--")) {
1912 i++;
1913 break;
1914 }
1915 if (!strncmp(arg, "-n", 2)) {
1916 ret = para_atoi32(arg + 2, &cto.num_played);
1917 if (ret < 0)
1918 return ret;
1919 continue;
1920 }
1921 if (!strncmp(arg, "-l", 2)) {
1922 ret = para_atoi64(arg + 2, &cto.last_played);
1923 if (ret < 0)
1924 return ret;
1925 continue;
1926 }
1927 if (!strncmp(arg, "-y", 2)) {
1928 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1929 if (ret < 0)
1930 return ret;
1931 continue;
1932 }
1933 if (!strncmp(arg, "-i", 2)) {
1934 ret = para_atoi32(arg + 2, &cto.image_id);
1935 if (ret < 0)
1936 return ret;
1937 continue;
1938 }
1939 if (!strcmp(arg, "-p")) {
1940 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1941 continue;
1942 }
1943 if (!strcmp(arg, "-v")) {
1944 cto.flags |= TOUCH_FLAG_VERBOSE;
1945 continue;
1946 }
1947 break; /* non-option starting with dash */
1948 }
1949 if (i >= argc)
1950 return -E_AFT_SYNTAX;
1951 ret = send_option_arg_callback_request(&query, argc - i,
1952 argv + i, com_touch_callback, &result);
1953 if (ret > 0) {
1954 send_buffer(fd, (char *)result.data);
1955 free(result.data);
1956 } else if (ret < 0)
1957 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1958 return ret;
1959 }
1960
1961 /** Flags for com_rm(). */
1962 enum rm_flags {
1963 /** -v */
1964 RM_FLAG_VERBOSE = 1,
1965 /** -f */
1966 RM_FLAG_FORCE = 2,
1967 /** -p */
1968 RM_FLAG_FNM_PATHNAME = 4
1969 };
1970
1971 /** Data passed to the action handler of com_rm(). */
1972 struct com_rm_action_data {
1973 /** Command line flags ((see \ref rm_flags). */
1974 uint32_t flags;
1975 /** Message buffer. */
1976 struct para_buffer pb;
1977 /** Number of audio files removed. */
1978 unsigned num_removed;
1979 };
1980
1981 static int remove_audio_file(__a_unused struct osl_table *table,
1982 struct osl_row *row, const char *name, void *data)
1983 {
1984 struct com_rm_action_data *crd = data;
1985 int ret;
1986
1987 if (crd->flags & RM_FLAG_VERBOSE)
1988 para_printf(&crd->pb, "removing %s\n", name);
1989 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1990 ret = osl_del_row(audio_file_table, row);
1991 if (ret < 0)
1992 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1993 else
1994 crd->num_removed++;
1995 return 1;
1996 }
1997
1998 static int com_rm_callback(const struct osl_object *query,
1999 __a_unused struct osl_object *result)
2000 {
2001 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data};
2002 int ret;
2003 struct pattern_match_data pmd = {
2004 .table = audio_file_table,
2005 .loop_col_num = AFTCOL_HASH,
2006 .match_col_num = AFTCOL_PATH,
2007 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2008 .size = query->size - sizeof(uint32_t)},
2009 .data = &crd,
2010 .action = remove_audio_file
2011 };
2012 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2013 pmd.fnmatch_flags |= FNM_PATHNAME;
2014 ret = for_each_matching_row(&pmd);
2015 if (ret < 0)
2016 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
2017 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2018 para_printf(&crd.pb, "no matches -- nothing removed\n");
2019 else {
2020 if (crd.flags & RM_FLAG_VERBOSE)
2021 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2022 }
2023 if (crd.pb.buf) {
2024 result->data = crd.pb.buf;
2025 result->size = crd.pb.size;
2026 return 1;
2027 }
2028 return ret < 0? ret : 0;
2029 }
2030
2031 /* TODO options: -r (recursive) */
2032 int com_rm(int fd, int argc, char * const * const argv)
2033 {
2034 uint32_t flags = 0;
2035 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2036 result;
2037 int i, ret;
2038
2039 for (i = 1; i < argc; i++) {
2040 const char *arg = argv[i];
2041 if (arg[0] != '-')
2042 break;
2043 if (!strcmp(arg, "--")) {
2044 i++;
2045 break;
2046 }
2047 if (!strcmp(arg, "-f")) {
2048 flags |= RM_FLAG_FORCE;
2049 continue;
2050 }
2051 if (!strcmp(arg, "-p")) {
2052 flags |= RM_FLAG_FNM_PATHNAME;
2053 continue;
2054 }
2055 if (!strcmp(arg, "-v")) {
2056 flags |= RM_FLAG_VERBOSE;
2057 continue;
2058 }
2059 break;
2060 }
2061 if (i >= argc)
2062 return -E_AFT_SYNTAX;
2063 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2064 com_rm_callback, &result);
2065 if (ret > 0) {
2066 send_buffer(fd, (char *)result.data);
2067 free(result.data);
2068 } else if (ret < 0)
2069 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2070 return ret;
2071 }
2072
2073 /**
2074 * Flags used by the cpsi command.
2075 *
2076 * \sa com_cpsi().
2077 */
2078 enum cpsi_flags {
2079 /** Whether the lyrics id should be copied. */
2080 CPSI_FLAG_COPY_LYRICS_ID = 1,
2081 /** Whether the image id should be copied. */
2082 CPSI_FLAG_COPY_IMAGE_ID = 2,
2083 /** Whether the lastplayed time should be copied. */
2084 CPSI_FLAG_COPY_LASTPLAYED = 4,
2085 /** Whether the numplayed count should be copied. */
2086 CPSI_FLAG_COPY_NUMPLAYED = 8,
2087 /** Whether the attributes should be copied. */
2088 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2089 /** Activates verbose mode. */
2090 CPSI_FLAG_VERBOSE = 32,
2091 };
2092
2093 /** Data passed to the action handler of com_cpsi(). */
2094 struct cpsi_action_data {
2095 /** command line flags (see \ref cpsi_flags). */
2096 unsigned flags;
2097 /** Number of audio files changed. */
2098 unsigned num_copied;
2099 /** Message buffer. */
2100 struct para_buffer pb;
2101 /** Values are copied from here. */
2102 struct afs_info source_afsi;
2103 };
2104
2105 static int copy_selector_info(__a_unused struct osl_table *table,
2106 struct osl_row *row, const char *name, void *data)
2107 {
2108 struct cpsi_action_data *cad = data;
2109 struct osl_object target_afsi_obj;
2110 int ret;
2111 struct afs_info old_afsi, target_afsi;
2112 struct afsi_change_event_data aced;
2113
2114 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2115 if (ret < 0)
2116 return ret;
2117 load_afsi(&target_afsi, &target_afsi_obj);
2118 old_afsi = target_afsi;
2119 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2120 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2121 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2122 target_afsi.image_id = cad->source_afsi.image_id;
2123 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2124 target_afsi.last_played = cad->source_afsi.last_played;
2125 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2126 target_afsi.num_played = cad->source_afsi.num_played;
2127 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2128 target_afsi.attributes = cad->source_afsi.attributes;
2129 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2130 cad->num_copied++;
2131 if (cad->flags & CPSI_FLAG_VERBOSE)
2132 para_printf(&cad->pb, "copied afsi to %s\n", name);
2133 aced.aft_row = row;
2134 aced.old_afsi = &old_afsi;
2135 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2136 return 1;
2137 }
2138
2139 static int com_cpsi_callback(const struct osl_object *query,
2140 struct osl_object *result)
2141 {
2142 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2143 int ret;
2144 char *source_path = (char *)query->data + sizeof(cad.flags);
2145
2146 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2147 if (ret < 0)
2148 goto out;
2149 struct pattern_match_data pmd = {
2150 .table = audio_file_table,
2151 .loop_col_num = AFTCOL_HASH,
2152 .match_col_num = AFTCOL_PATH,
2153 .patterns = {.data = source_path + strlen(source_path) + 1,
2154 .size = query->size - sizeof(cad.flags)
2155 - strlen(source_path) - 1},
2156 .data = &cad,
2157 .action = copy_selector_info
2158 };
2159 ret = for_each_matching_row(&pmd);
2160 out:
2161 if (ret < 0)
2162 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2163 if (cad.flags & CPSI_FLAG_VERBOSE) {
2164 if (cad.num_copied)
2165 para_printf(&cad.pb, "copied requested afsi from %s "
2166 "to %u files\n",
2167 source_path, cad.num_copied);
2168 else
2169 para_printf(&cad.pb, "nothing copied\n");
2170 }
2171 if (cad.pb.buf) {
2172 result->data = cad.pb.buf;
2173 result->size = cad.pb.size;
2174 return 1;
2175 }
2176 return ret < 0? ret : 0;
2177 }
2178
2179 int com_cpsi(int fd, int argc, char * const * const argv)
2180 {
2181 unsigned flags = 0;
2182 int i, ret;
2183 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2184 result;
2185
2186 for (i = 1; i < argc; i++) {
2187 const char *arg = argv[i];
2188 if (arg[0] != '-')
2189 break;
2190 if (!strcmp(arg, "--")) {
2191 i++;
2192 break;
2193 }
2194 if (!strcmp(arg, "-y")) {
2195 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2196 continue;
2197 }
2198 if (!strcmp(arg, "-i")) {
2199 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2200 continue;
2201 }
2202 if (!strcmp(arg, "-l")) {
2203 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2204 continue;
2205 }
2206 if (!strcmp(arg, "-n")) {
2207 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2208 continue;
2209 }
2210 if (!strcmp(arg, "-a")) {
2211 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2212 continue;
2213 }
2214 if (!strcmp(arg, "-v")) {
2215 flags |= CPSI_FLAG_VERBOSE;
2216 continue;
2217 }
2218 break;
2219 }
2220 if (i + 1 >= argc) /* need at least souce file and pattern */
2221 return -E_AFT_SYNTAX;
2222 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2223 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2224 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2225 com_cpsi_callback, &result);
2226 if (ret > 0) {
2227 send_buffer(fd, (char *)result.data);
2228 free(result.data);
2229 } else
2230 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2231 return ret;
2232 }
2233
2234 /* TODO: optionally fix problems by removing offending rows */
2235 static int check_audio_file(struct osl_row *row, void *data)
2236 {
2237 char *path;
2238 struct para_buffer *pb = data;
2239 struct stat statbuf;
2240 int ret = get_audio_file_path_of_row(row, &path);
2241 struct afs_info afsi;
2242 char *blob_name;
2243
2244 if (ret < 0) {
2245 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2246 return 1;
2247 }
2248 if (stat(path, &statbuf) < 0)
2249 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2250 else {
2251 if (!S_ISREG(statbuf.st_mode))
2252 para_printf(pb, "%s: not a regular file\n", path);
2253 }
2254 ret = get_afsi_of_row(row, &afsi);
2255 if (ret < 0) {
2256 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2257 return 1;
2258 }
2259 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2260 if (ret < 0)
2261 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2262 PARA_STRERROR(-ret));
2263 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2264 if (ret < 0)
2265 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2266 PARA_STRERROR(-ret));
2267 return 1;
2268 }
2269
2270 /**
2271 * Check the audio file table for inconsistencies.
2272 *
2273 * \param query Unused.
2274 * \param result Contains message string upon return.
2275 *
2276 * This function always succeeds.
2277 *
2278 * \sa com_check().
2279 */
2280 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2281 {
2282 struct para_buffer pb = {.buf = NULL};
2283
2284 para_printf(&pb, "checking audio file table...\n");
2285 audio_file_loop(&pb, check_audio_file);
2286 result->data = pb.buf;
2287 result->size = pb.size;
2288 return 1;
2289
2290 }
2291
2292 /**
2293 * Close the audio file table.
2294 *
2295 * \param flags Usual flags that are passed to osl_close_table().
2296 *
2297 * \sa osl_close_table().
2298 */
2299 static void aft_close(void)
2300 {
2301 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2302 audio_file_table = NULL;
2303 }
2304
2305 /**
2306 * Open the audio file table.
2307 *
2308 * \param dir The database directory.
2309 *
2310 * \return Standard.
2311 *
2312 * \sa osl_open_table().
2313 */
2314 static int aft_open(const char *dir)
2315 {
2316 int ret;
2317
2318 audio_file_table_desc.dir = dir;
2319 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2320 if (ret >= 0) {
2321 unsigned num;
2322 osl_get_num_rows(audio_file_table, &num);
2323 PARA_INFO_LOG("audio file table contains %d files\n", num);
2324 return ret;
2325 }
2326 PARA_INFO_LOG("failed to open audio file table\n");
2327 audio_file_table = NULL;
2328 if (ret >= 0 || is_errno(-ret, ENOENT))
2329 return 1;
2330 return ret;
2331 }
2332
2333 static int aft_create(const char *dir)
2334 {
2335 audio_file_table_desc.dir = dir;
2336 return osl_create_table(&audio_file_table_desc);
2337 }
2338
2339 static int clear_attribute(struct osl_row *row, void *data)
2340 {
2341 struct rmatt_event_data *red = data;
2342 struct afs_info afsi;
2343 struct osl_object obj;
2344 int ret = get_afsi_object_of_row(row, &obj);
2345 uint64_t mask = ~(1ULL << red->bitnum);
2346
2347 if (ret < 0)
2348 return ret;
2349 ret = load_afsi(&afsi, &obj);
2350 if (ret < 0)
2351 return ret;
2352 afsi.attributes &= mask;
2353 save_afsi(&afsi, &obj);
2354 return 1;
2355 }
2356
2357 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2358 void *data)
2359 {
2360 switch(event) {
2361 case ATTRIBUTE_REMOVE: {
2362 const struct rmatt_event_data *red = data;
2363 para_printf(pb, "clearing attribute %s (bit %u) from all "
2364 "entries in the audio file table\n", red->name,
2365 red->bitnum);
2366 return audio_file_loop(data, clear_attribute);
2367 }
2368 default:
2369 return 1;
2370 }
2371 }
2372
2373 void aft_init(struct afs_table *t)
2374 {
2375 t->name = audio_file_table_desc.name;
2376 t->open = aft_open;
2377 t->close = aft_close;
2378 t->create = aft_create;
2379 t->event_handler = aft_event_handler;
2380 }