2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file aft.c Audio file table functions. */
16 #include "server_cmd.lsg.h"
25 #include "portable_io.h"
29 static struct osl_table *audio_file_table;
30 static char *status_items;
31 static char *parser_friendly_status_items;
33 /** The different sorting methods of the ls command. */
34 enum ls_sorting_method {
40 LS_SORT_BY_LAST_PLAYED,
42 LS_SORT_BY_NUM_PLAYED,
56 LS_SORT_BY_AUDIO_FORMAT,
61 /** The different listing modes of the ls command. */
62 enum ls_listing_mode {
63 /** Default listing mode. */
77 /* Data about one audio file. Needed for ls and stat output. */
79 /* Usual audio format handler information. */
81 /* Audio file selector information. */
83 /* The full path of the audio file. */
85 /* The score value (if -a was given). */
87 /* The hash value of the audio file data. */
92 * The size of the individual output fields of the ls command.
94 * These depend on the content being listed. For example, if each listed file
95 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
99 /** size of the score field. */
100 unsigned short score_width;
101 /** size of the image id field. */
102 unsigned short image_id_width;
103 /** size of the lyrics id field. */
104 unsigned short lyrics_id_width;
105 /** size of the bitrate field. */
106 unsigned short bitrate_width;
107 /** size of the frequency field. */
108 unsigned short frequency_width;
109 /** size of the duration field. */
110 unsigned short duration_width;
111 /** size of the num played field. */
112 unsigned short num_played_width;
113 /** size of the amp field. */
114 unsigned short amp_width;
115 /** size of the audio format field. */
116 unsigned short audio_format_width;
119 /** Data passed from the ls command handler to its callback function. */
121 struct lls_parse_result *lpr;
122 /* Derived from lpr */
123 enum ls_sorting_method sorting;
124 /* Derived from lpr */
125 enum ls_listing_mode mode;
126 /** Used for long listing mode to align the output fields. */
127 struct ls_widths widths;
128 /** Size of the \a data array. */
130 /** Number of used entries in the data array. */
131 uint32_t num_matching_paths;
132 /** Array of matching entries. */
133 struct ls_data *data;
134 /** Used to sort the array. */
135 struct ls_data **data_ptr;
139 * Describes the layout of the mmapped-afs info struct.
141 * \sa struct afs_info.
144 /** Where .last_played is stored. */
145 AFSI_LAST_PLAYED_OFFSET = 0,
146 /** Storage position of the attributes bitmap. */
147 AFSI_ATTRIBUTES_OFFSET = 8,
148 /** Storage position of the .num_played field. */
149 AFSI_NUM_PLAYED_OFFSET = 16,
150 /** Storage position of the .image_id field. */
151 AFSI_IMAGE_ID_OFFSET = 20,
152 /** Storage position of the .lyrics_id field. */
153 AFSI_LYRICS_ID_OFFSET = 24,
154 /** Storage position of the .audio_format_id field. */
155 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
156 /** Storage position of the amplification field. */
157 AFSI_AMP_OFFSET = 29,
158 /** 2 bytes reserved space for future usage. */
159 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
160 /** On-disk storage space needed. */
165 * Convert a struct afs_info to an osl object.
167 * \param afsi Pointer to the audio file info to be converted.
168 * \param obj Result pointer.
172 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
174 char *buf = obj->data;
176 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
177 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
178 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
179 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
180 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
181 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
182 afsi->audio_format_id);
183 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
184 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
188 * Get the audio file selector info struct stored in an osl object.
190 * \param afsi Points to the audio_file info structure to be filled in.
191 * \param obj The osl object holding the data.
197 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
199 char *buf = obj->data;
200 if (obj->size < AFSI_SIZE)
202 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
203 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
204 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
205 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
206 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
207 afsi->audio_format_id = read_u8(buf +
208 AFSI_AUDIO_FORMAT_ID_OFFSET);
209 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
213 /** The columns of the audio file table. */
214 enum audio_file_table_columns {
215 /** The hash on the content of the audio file. */
217 /** The full path in the filesystem. */
219 /** The audio file selector info. */
221 /** The audio format handler info. */
223 /** The chunk table info and the chunk table of the audio file. */
225 /** The number of columns of this table. */
229 /* compare function for the hash column */
230 static int aft_hash_compare(const struct osl_object *obj1,
231 const struct osl_object *obj2)
233 return hash_compare((unsigned char *)obj1->data,
234 (unsigned char *)obj2->data);
237 static struct osl_column_description aft_cols[] = {
239 .storage_type = OSL_MAPPED_STORAGE,
240 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
242 .compare_function = aft_hash_compare,
243 .data_size = HASH_SIZE
246 .storage_type = OSL_MAPPED_STORAGE,
247 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
249 .compare_function = string_compare,
252 .storage_type = OSL_MAPPED_STORAGE,
253 .storage_flags = OSL_FIXED_SIZE,
255 .data_size = AFSI_SIZE
258 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_type = OSL_DISK_STORAGE,
267 static struct osl_table_description audio_file_table_desc = {
268 .name = "audio_files",
269 .num_columns = NUM_AFT_COLUMNS,
270 .flags = OSL_LARGE_TABLE,
271 .column_descriptions = aft_cols
275 * Produce a canonicalized absolute pathname.
277 * Returns one if the resolved path a directory, zero if it is a regular file,
278 * negative on errors.
280 static int verify_path(const char *orig_path, char **resolved_path)
286 if (*orig_path != '/') /* we only accept absolute paths */
288 path = realpath(orig_path, NULL);
291 if (stat(path, &statbuf) < 0)
293 if (S_ISREG(statbuf.st_mode))
295 else if (S_ISDIR(statbuf.st_mode))
299 *resolved_path = path;
302 *resolved_path = NULL;
307 /** The on-disk layout of a afhi struct. */
309 /** Where the number of seconds is stored. */
310 AFHI_SECONDS_TOTAL_OFFSET = 0,
311 /** Position of the bitrate. */
312 AFHI_BITRATE_OFFSET = 4,
313 /** Position of the frequency. */
314 AFHI_FREQUENCY_OFFSET = 8,
315 /** Was: Location of the audio file header. */
316 AFHI_UNUSED1_OFFSET = 12,
317 /* Length of the audio file header. Zero means: No header. */
318 AFHI_HEADER_LEN_OFFSET = 16,
319 /** The total number of chunks (4 bytes). */
320 CHUNKS_TOTAL_OFFSET = 20,
321 /** The length of the audio file header (4 bytes). */
322 HEADER_LEN_OFFSET = 24,
323 /** Size of the largest chunk in bytes. (4 bytes). */
324 AFHI_MAX_CHUNK_SIZE_OFFSET = 28,
325 /** The seconds part of the chunk time (4 bytes). */
326 CHUNK_TV_TV_SEC_OFFSET = 32,
327 /** The microseconds part of the chunk time (4 bytes). */
328 CHUNK_TV_TV_USEC_OFFSET = 36,
329 /** Number of channels is stored here. (1 byte) */
330 AFHI_CHANNELS_OFFSET = 40,
331 /** The tag info position. */
332 AFHI_INFO_STRING_OFFSET = 41,
333 /** Minimal on-disk size of a valid afhi struct. */
334 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
337 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
342 + strlen(afhi->techinfo)
343 + strlen(afhi->tags.artist)
344 + strlen(afhi->tags.title)
345 + strlen(afhi->tags.year)
346 + strlen(afhi->tags.album)
347 + strlen(afhi->tags.comment);
350 static void save_afhi(struct afh_info *afhi, char *buf)
356 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
357 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
358 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
359 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
360 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
361 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
362 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
363 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
364 write_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET, afhi->max_chunk_size);
365 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
366 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
367 p = buf + AFHI_INFO_STRING_OFFSET;
368 /* The sprintf's below are OK as our caller made sure that buf is large enough */
369 p += sprintf(p, "%s", afhi->techinfo) + 1;
370 p += sprintf(p, "%s", afhi->tags.artist) + 1;
371 p += sprintf(p, "%s", afhi->tags.title) + 1;
372 p += sprintf(p, "%s", afhi->tags.year) + 1;
373 p += sprintf(p, "%s", afhi->tags.album) + 1;
374 sprintf(p, "%s", afhi->tags.comment);
377 static void load_afhi(const char *buf, struct afh_info *afhi)
379 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
380 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
381 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
382 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
383 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
384 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
385 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
386 afhi->max_chunk_size = read_u32(buf + AFHI_MAX_CHUNK_SIZE_OFFSET);
387 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
388 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
389 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
390 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
391 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
392 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
393 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
394 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
397 /* Only used for saving the chunk table, but not for loading. */
398 static unsigned sizeof_chunk_table(struct afh_info *afhi)
400 if (!afhi || !afhi->chunk_table)
402 return 4 * (afhi->chunks_total + 1);
405 static void save_chunk_table(struct afh_info *afhi, char *buf)
409 if (!afhi->chunk_table)
411 for (n = 0; n <= afhi->chunks_total; n++)
412 write_u32(buf + 4 * n, afhi->chunk_table[n]);
415 static void load_chunk_table(struct afh_info *afhi, const struct osl_object *ct)
420 if (!ct->data || ct->size < 4) {
421 afhi->chunk_table = NULL;
424 sz = PARA_MIN(((size_t)afhi->chunks_total + 1) * 4, ct->size) + 1;
425 afhi->chunk_table = para_malloc(sz);
426 for (i = 0; i <= afhi->chunks_total && i * 4 + 3 < ct->size; i++)
427 afhi->chunk_table[i] = read_u32(ct->data + 4 * i);
431 * Get the row of the audio file table corresponding to the given path.
433 * \param path The full path of the audio file.
434 * \param row Result pointer.
438 int aft_get_row_of_path(const char *path, struct osl_row **row)
440 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
442 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
446 * Get the row of the audio file table corresponding to the given hash value.
448 * \param hash The hash value of the desired audio file.
449 * \param row Result pointer.
453 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
455 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
456 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
460 * Get the audio file selector info object of a row.
462 * \param row Pointer to a row in the audio file table.
463 * \param obj Result pointer.
467 static int get_afsi_object_of_row(const struct osl_row *row,
468 struct osl_object *obj)
470 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
474 * Get the osl object holding the audio file selector info, given a path.
477 * \param path The full path of the audio file.
478 * \param obj Result pointer.
480 * \return Positive on success, negative on errors.
482 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
485 int ret = aft_get_row_of_path(path, &row);
488 return get_afsi_object_of_row(row, obj);
492 * Get the audio file selector info, given a row of the audio file table.
494 * \param row Pointer to a row in the audio file table.
495 * \param afsi Result pointer.
497 * \return Positive on success, negative on errors.
499 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
501 struct osl_object obj;
502 int ret = get_afsi_object_of_row(row, &obj);
505 return load_afsi(afsi, &obj);
509 * Get the audio file selector info, given the path of an audio table.
511 * \param path The full path of the audio file.
512 * \param afsi Result pointer.
516 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
518 struct osl_object obj;
519 int ret = get_afsi_object_of_path(path, &obj);
522 return load_afsi(afsi, &obj);
526 * Get the path of an audio file, given a row of the audio file table.
528 * \param row Pointer to a row in the audio file table.
529 * \param path Result pointer.
531 * The result is a pointer to mmapped data. The caller must not attempt
536 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
538 struct osl_object path_obj;
539 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
543 *path = path_obj.data;
548 * Get the object containing the hash value of an audio file, given a row.
550 * \param row Pointer to a row of the audio file table.
551 * \param obj Result pointer.
553 * \return The return value of the underlying call to osl_get_object().
555 * \sa get_hash_of_row().
557 static int get_hash_object_of_aft_row(const struct osl_row *row,
558 struct osl_object *obj)
560 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
564 * Get the hash value of an audio file, given a row of the audio file table.
566 * \param row Pointer to a row of the audio file table.
567 * \param hash Result pointer.
569 * \a hash points to mapped data and must not be freed by the caller.
571 * \return The return value of the underlying call to
572 * get_hash_object_of_aft_row().
574 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
576 struct osl_object obj;
577 int ret = get_hash_object_of_aft_row(row, &obj);
586 * Get the audio format handler info, given a row of the audio file table.
588 * \param row Pointer to a row of the audio file table.
589 * \param afhi Result pointer.
591 * \return The return value of the underlying call to osl_get_object().
593 * \sa get_chunk_table_of_row().
595 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
597 struct osl_object obj;
598 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
602 load_afhi(obj.data, afhi);
606 /* returns shmid on success */
607 static int save_afd(struct audio_file_data *afd)
609 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
610 int shmid, ret = shm_new(size);
617 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
622 save_chunk_table(&afd->afhi, buf);
623 if (afd->afhi.max_chunk_size == 0) { /* v0.5.x on-disk afhi */
624 set_max_chunk_size(&afd->afhi);
625 PARA_NOTICE_LOG("max chunk size unset, re-add required\n");
627 PARA_INFO_LOG("using max chunk size from afhi\n");
628 afd->max_chunk_size = afd->afhi.max_chunk_size;
629 *(struct audio_file_data *)shm_afd = *afd;
638 * Extract a afd stored in a shared memory area.
640 * Attach the shared memory area given by \a shmid, load the audio file data
641 * stored therein and detach the area afterwards. Called by vss, after
642 * receiving a positive response to the request for the next audio file.
644 * \param shmid The identifier of the shared memory area containing the afd.
645 * \param afd Result pointer.
649 int load_afd(int shmid, struct audio_file_data *afd)
653 struct osl_object obj;
655 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
658 ret = shm_size(shmid, &obj.size);
661 *afd = *(struct audio_file_data *)shm_afd;
662 obj.data = shm_afd + sizeof(*afd);
663 obj.size -= sizeof(*afd);
664 load_chunk_table(&afd->afhi, &obj);
671 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
672 time_t current_time, enum ls_listing_mode lm)
676 * Omit year but show time if the given value is closer to the current
677 * time than this many seconds.
679 const time_t m = 6 * 30 * 24 * 3600; /* six months */
681 tm = localtime((time_t *)seconds);
684 if (lm == LS_MODE_MBOX) {
685 if (!strftime(buf, size, "%c", tm))
689 if (*seconds > current_time - m && *seconds < current_time + m) {
690 if (!strftime(buf, size, "%b %e %k:%M", tm))
695 * If the given time is more than six month away from the current time,
696 * we print only the year. The additional space character in the format
697 * string below makes the formated date align nicely with dates that
698 * contain the time (those written by the above strftime() statement).
700 if (!strftime(buf, size, "%b %e %Y", tm))
705 /** Compute the number of (decimal) digits of a number. */
706 #define GET_NUM_DIGITS(x, num) { \
707 typeof((x)) _tmp = PARA_ABS(x); \
710 while ((_tmp) > 9) { \
716 __a_const static short unsigned get_duration_width(int seconds)
718 short unsigned width;
719 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
721 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
722 return 4 + (mins > 9);
723 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
724 GET_NUM_DIGITS(hours, &width);
728 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
730 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
731 short unsigned max_width;
733 if (!hours) { /* m:ss or mm:ss */
734 max_width = opts->mode == LS_MODE_LONG?
735 opts->widths.duration_width : 4;
736 sprintf(buf, "%*u:%02d", max_width - 3, mins, seconds % 60);
737 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
738 max_width = opts->mode == LS_MODE_LONG?
739 opts->widths.duration_width : 7;
740 sprintf(buf, "%*u:%02u:%02d", max_width - 6, hours, mins,
745 static int write_attribute_items(struct para_buffer *b,
746 const char *att_bitmap, struct afs_info *afsi)
751 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
752 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
755 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
760 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
764 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
765 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
766 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
767 lyrics_name : "(none)");
770 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
774 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
775 img_get_name_by_id(afsi->image_id, &image_name);
776 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
777 image_name : "(none)");
780 static void write_filename_items(struct para_buffer *b, const char *path,
786 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
789 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
790 val = para_basename(path);
791 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
792 val = para_dirname(path);
793 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
797 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
799 struct osl_object chunk_table_obj;
800 struct osl_row *aft_row;
804 ret = aft_get_row_of_hash(d->hash, &aft_row);
807 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
808 AFTCOL_CHUNKS, &chunk_table_obj));
811 para_printf(b, "%s\n"
812 "chunk_time: %lu:%lu\nchunk_offsets: ",
814 (long unsigned) d->afhi.chunk_tv.tv_sec,
815 (long unsigned) d->afhi.chunk_tv.tv_usec
817 buf = chunk_table_obj.data;
820 i <= d->afhi.chunks_total && 4 * i + 3 < chunk_table_obj.size;
823 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
824 para_printf(b, "\n");
826 osl_close_disk_object(&chunk_table_obj);
830 static int print_list_item(struct ls_data *d, struct ls_options *opts,
831 struct para_buffer *b, time_t current_time)
833 const struct lls_opt_result *r_a = SERVER_CMD_OPT_RESULT(LS, ADMISSIBLE, opts->lpr);
834 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME, opts->lpr);
835 const struct lls_opt_result *r_d = SERVER_CMD_OPT_RESULT(LS, UNIX_DATE, opts->lpr);
838 char last_played_time[30];
839 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
840 struct afs_info *afsi = &d->afsi;
841 struct afh_info *afhi = &d->afhi;
842 char asc_hash[2 * HASH_SIZE + 1];
844 if (opts->mode == LS_MODE_SHORT) {
845 para_printf(b, "%s\n", d->path);
849 if (opts->mode == LS_MODE_CHUNKS) {
850 ret = print_chunk_table(d, b);
853 get_attribute_bitmap(&afsi->attributes, att_buf);
854 if (lls_opt_given(r_d))
855 sprintf(last_played_time, "%llu",
856 (long long unsigned)afsi->last_played);
858 ret = get_local_time(&afsi->last_played, last_played_time,
859 sizeof(last_played_time), current_time, opts->mode);
863 get_duration_buf(afhi->seconds_total, duration_buf, opts);
864 if (opts->mode == LS_MODE_LONG) {
865 struct ls_widths *w = &opts->widths;
866 if (lls_opt_given(r_a))
867 para_printf(b, "%*li ", opts->widths.score_width,
870 "%s " /* attributes */
872 "%*u " /* image_id */
873 "%*u " /* lyrics_id */
875 "%*s " /* audio format */
876 "%*u " /* frequency */
879 "%*u " /* num_played */
880 "%s " /* last_played */
883 w->amp_width, afsi->amp,
884 w->image_id_width, afsi->image_id,
885 w->lyrics_id_width, afsi->lyrics_id,
886 w->bitrate_width, afhi->bitrate,
887 w->audio_format_width,
888 audio_format_name(afsi->audio_format_id),
889 w->frequency_width, afhi->frequency,
892 w->num_played_width, afsi->num_played,
899 if (opts->mode == LS_MODE_MBOX) {
900 const char *bn = para_basename(d->path);
902 "From foo@localhost %s\n"
903 "Received: from\nTo: bar\nFrom: a\n"
908 write_filename_items(b, d->path, lls_opt_given(r_b));
909 if (lls_opt_given(r_a))
910 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
911 ret = write_attribute_items(b, att_buf, afsi);
914 write_image_items(b, afsi);
915 write_lyrics_items(b, afsi);
916 hash_to_asc(d->hash, asc_hash);
917 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
918 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
919 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
920 audio_format_name(afsi->audio_format_id));
921 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
922 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
923 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
924 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
925 afhi->seconds_total);
926 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
927 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%u\n", afsi->num_played);
928 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
929 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
930 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
932 WRITE_STATUS_ITEM(b, SI_MAX_CHUNK_SIZE, "%" PRIu32 "\n",
933 afhi->max_chunk_size);
934 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
935 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
936 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
937 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
938 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
939 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
940 if (opts->mode == LS_MODE_MBOX) {
941 struct osl_object lyrics_def;
942 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
943 if (lyrics_def.data) {
944 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
945 (char *)lyrics_def.data);
946 osl_close_disk_object(&lyrics_def);
953 static struct ls_data status_item_ls_data;
954 static struct osl_row *current_aft_row;
956 static void make_inode_status_items(struct para_buffer *pb)
958 struct stat statbuf = {.st_size = 0};
959 char *path, mtime_str[30] = "\0";
963 ret = get_audio_file_path_of_row(current_aft_row, &path);
966 ret = stat(path, &statbuf);
969 localtime_r(&statbuf.st_mtime, &mtime_tm);
970 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
971 assert(ret > 0); /* number of bytes placed in mtime_str */
973 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
974 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
977 static int make_status_items(void)
979 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
980 char *argv[] = {"ls", "--admissible", "--listing-mode=verbose"};
981 struct ls_options opts = {.mode = LS_MODE_VERBOSE};
982 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
986 if (!status_item_ls_data.path) /* no audio file open */
988 ret = lls_parse(ARRAY_SIZE(argv), argv, cmd, &opts.lpr, NULL);
991 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
994 make_inode_status_items(&pb);
996 status_items = pb.buf;
998 memset(&pb, 0, sizeof(pb));
999 pb.max_size = shm_get_shmmax() - 1;
1000 pb.flags = PBF_SIZE_PREFIX;
1001 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1004 status_items = NULL;
1007 make_inode_status_items(&pb);
1008 free(parser_friendly_status_items);
1009 parser_friendly_status_items = pb.buf;
1012 lls_free_parse_result(opts.lpr, cmd);
1017 * Open the audio file with highest score and set up an afd structure.
1019 * \param afd Result pointer.
1021 * On success, the numplayed field of the audio file selector info is increased
1022 * and the lastplayed time is set to the current time. Finally, the score of
1023 * the audio file is updated.
1025 * \return Positive shmid on success, negative on errors.
1027 int open_and_update_audio_file(struct audio_file_data *afd)
1029 unsigned char file_hash[HASH_SIZE];
1030 struct osl_object afsi_obj;
1031 struct afs_info new_afsi;
1033 struct afsi_change_event_data aced;
1034 struct osl_object map, chunk_table_obj;
1035 struct ls_data *d = &status_item_ls_data;
1037 ret = score_get_best(¤t_aft_row, &d->score);
1040 ret = get_hash_of_row(current_aft_row, &d->hash);
1043 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1046 PARA_NOTICE_LOG("%s\n", d->path);
1047 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1050 ret = load_afsi(&d->afsi, &afsi_obj);
1053 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1056 d->afhi = afd->afhi;
1057 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1058 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1059 AFTCOL_CHUNKS, &chunk_table_obj));
1061 if (!afh_supports_dynamic_chunks(d->afsi.audio_format_id))
1063 PARA_INFO_LOG("no chunk table for %s\n", d->path);
1064 chunk_table_obj.data = NULL;
1065 chunk_table_obj.size = 0;
1067 PARA_INFO_LOG("chunk table: %zu bytes\n", chunk_table_obj.size);
1069 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1072 hash_function(map.data, map.size, file_hash);
1073 ret = hash_compare(file_hash, d->hash);
1074 para_munmap(map.data, map.size);
1076 ret = -E_HASH_MISMATCH;
1080 new_afsi.num_played++;
1081 new_afsi.last_played = time(NULL);
1082 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1084 afd->audio_format_id = d->afsi.audio_format_id;
1085 load_chunk_table(&afd->afhi, &chunk_table_obj);
1086 aced.aft_row = current_aft_row;
1087 aced.old_afsi = &d->afsi;
1089 * No need to update the status items as the AFSI_CHANGE event will
1092 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1095 ret = save_afd(afd);
1097 free(afd->afhi.chunk_table);
1098 if (chunk_table_obj.data)
1099 osl_close_disk_object(&chunk_table_obj);
1101 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1102 ret = score_delete(current_aft_row);
1109 static int ls_audio_format_compare(const void *a, const void *b)
1111 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1112 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1115 static int ls_duration_compare(const void *a, const void *b)
1117 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1118 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1121 static int ls_bitrate_compare(const void *a, const void *b)
1123 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1124 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1127 static int ls_lyrics_id_compare(const void *a, const void *b)
1129 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1130 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1133 static int ls_image_id_compare(const void *a, const void *b)
1135 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1136 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1139 static int ls_channels_compare(const void *a, const void *b)
1141 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1142 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1145 static int ls_frequency_compare(const void *a, const void *b)
1147 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1148 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1151 static int ls_num_played_compare(const void *a, const void *b)
1153 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1154 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1157 static int ls_last_played_compare(const void *a, const void *b)
1159 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1160 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1163 static int ls_score_compare(const void *a, const void *b)
1165 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1166 return NUM_COMPARE(d1->score, d2->score);
1169 static int ls_path_compare(const void *a, const void *b)
1171 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1172 return strcmp(d1->path, d2->path);
1175 static inline bool admissible_only(struct ls_options *opts)
1177 return SERVER_CMD_OPT_GIVEN(LS, ADMISSIBLE, opts->lpr)
1178 || opts->sorting == LS_SORT_BY_SCORE;
1181 static int sort_matching_paths(struct ls_options *options)
1183 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME,
1185 size_t nmemb = options->num_matching_paths;
1186 size_t size = sizeof(*options->data_ptr);
1187 int (*compar)(const void *, const void *);
1190 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1191 for (i = 0; i < nmemb; i++)
1192 options->data_ptr[i] = options->data + i;
1194 /* In these cases the array is already sorted */
1195 if (admissible_only(options)) {
1196 if (options->sorting == LS_SORT_BY_SCORE)
1199 if (options->sorting == LS_SORT_BY_PATH && !lls_opt_given(r_b))
1203 switch (options->sorting) {
1204 case LS_SORT_BY_PATH:
1205 compar = ls_path_compare; break;
1206 case LS_SORT_BY_SCORE:
1207 compar = ls_score_compare; break;
1208 case LS_SORT_BY_LAST_PLAYED:
1209 compar = ls_last_played_compare; break;
1210 case LS_SORT_BY_NUM_PLAYED:
1211 compar = ls_num_played_compare; break;
1212 case LS_SORT_BY_FREQUENCY:
1213 compar = ls_frequency_compare; break;
1214 case LS_SORT_BY_CHANNELS:
1215 compar = ls_channels_compare; break;
1216 case LS_SORT_BY_IMAGE_ID:
1217 compar = ls_image_id_compare; break;
1218 case LS_SORT_BY_LYRICS_ID:
1219 compar = ls_lyrics_id_compare; break;
1220 case LS_SORT_BY_BITRATE:
1221 compar = ls_bitrate_compare; break;
1222 case LS_SORT_BY_DURATION:
1223 compar = ls_duration_compare; break;
1224 case LS_SORT_BY_AUDIO_FORMAT:
1225 compar = ls_audio_format_compare; break;
1229 qsort(options->data_ptr, nmemb, size, compar);
1233 /* row is either an aft_row or a row of the score table */
1234 /* TODO: Only compute widths if we need them */
1235 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1238 struct ls_options *options = ls_opts;
1239 bool basename_given = SERVER_CMD_OPT_GIVEN(LS, BASENAME, options->lpr);
1241 struct ls_widths *w;
1242 unsigned short num_digits;
1243 unsigned tmp, num_inputs;
1244 struct osl_row *aft_row;
1248 if (admissible_only(options)) {
1249 ret = get_score_and_aft_row(row, &score, &aft_row);
1256 ret = get_audio_file_path_of_row(aft_row, &path);
1259 if (basename_given) {
1260 char *p = strrchr(path, '/');
1264 num_inputs = lls_num_inputs(options->lpr);
1265 if (num_inputs > 0) {
1266 for (i = 0; i < num_inputs; i++) {
1267 ret = fnmatch(lls_input(i, options->lpr), path, 0);
1270 if (ret == FNM_NOMATCH)
1274 if (i >= num_inputs) /* no match */
1277 tmp = options->num_matching_paths++;
1278 if (options->num_matching_paths > options->array_size) {
1279 options->array_size++;
1280 options->array_size *= 2;
1281 options->data = para_realloc(options->data, options->array_size
1282 * sizeof(*options->data));
1284 d = options->data + tmp;
1285 ret = get_afsi_of_row(aft_row, &d->afsi);
1288 ret = get_afhi_of_row(aft_row, &d->afhi);
1292 ret = get_hash_of_row(aft_row, &d->hash);
1295 w = &options->widths;
1296 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1297 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1298 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1299 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1300 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1301 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1302 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1303 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1304 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1305 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1306 /* get the number of chars to print this amount of time */
1307 num_digits = get_duration_width(d->afhi.seconds_total);
1308 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1309 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1310 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1311 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1312 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1313 if (admissible_only(options)) {
1314 GET_NUM_DIGITS(score, &num_digits);
1315 num_digits++; /* add one for the sign (space or "-") */
1316 w->score_width = PARA_MAX(w->score_width, num_digits);
1324 static int com_ls_callback(struct afs_callback_arg *aca)
1326 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1327 struct ls_options *opts = aca->query.data;
1329 time_t current_time;
1330 const struct lls_opt_result *r_r;
1332 ret = lls_deserialize_parse_result(
1333 (char *)aca->query.data + sizeof(*opts), cmd, &opts->lpr);
1335 r_r = SERVER_CMD_OPT_RESULT(LS, REVERSE, opts->lpr);
1337 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1338 if (admissible_only(opts))
1339 ret = admissible_file_loop(opts, prepare_ls_row);
1341 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1345 if (opts->num_matching_paths == 0) {
1346 ret = lls_num_inputs(opts->lpr) > 0? -E_NO_MATCH : 0;
1349 ret = sort_matching_paths(opts);
1352 time(¤t_time);
1353 if (lls_opt_given(r_r))
1354 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1355 ret = print_list_item(opts->data_ptr[i], opts,
1356 &aca->pbout, current_time);
1361 for (i = 0; i < opts->num_matching_paths; i++) {
1362 ret = print_list_item(opts->data_ptr[i], opts,
1363 &aca->pbout, current_time);
1368 lls_free_parse_result(opts->lpr, cmd);
1370 free(opts->data_ptr);
1374 /* TODO: flags -h (sort by hash) */
1375 static int com_ls(struct command_context *cc, struct lls_parse_result *lpr)
1377 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1378 struct ls_options *opts;
1379 struct osl_object query;
1380 const struct lls_opt_result *r_l = SERVER_CMD_OPT_RESULT(LS, LISTING_MODE,
1382 const struct lls_opt_result *r_s = SERVER_CMD_OPT_RESULT(LS, SORT, lpr);
1386 ret = lls_serialize_parse_result(lpr, cmd, NULL, &query.size);
1388 query.size += sizeof(*opts);
1389 query.data = para_malloc(query.size);
1391 memset(opts, 0, sizeof(*opts));
1392 slpr = query.data + sizeof(*opts);
1393 ret = lls_serialize_parse_result(lpr, cmd, &slpr, NULL);
1395 opts->mode = LS_MODE_SHORT;
1396 opts->sorting = LS_SORT_BY_PATH;
1397 if (lls_opt_given(r_l)) {
1398 const char *val = lls_string_val(0, r_l);
1399 if (!strcmp(val, "l") || !strcmp(val, "long"))
1400 opts->mode = LS_MODE_LONG;
1401 else if (!strcmp(val, "s") || !strcmp(val, "short"))
1402 opts->mode = LS_MODE_SHORT;
1403 else if (!strcmp(val, "v") || !strcmp(val, "verbose"))
1404 opts->mode = LS_MODE_VERBOSE;
1405 else if (!strcmp(val, "m") || !strcmp(val, "mbox"))
1406 opts->mode = LS_MODE_MBOX;
1407 else if (!strcmp(val, "c") || !strcmp(val, "chunk-table"))
1408 opts->mode = LS_MODE_MBOX;
1409 else if (!strcmp(val, "p") || !strcmp(val, "parser-friendly"))
1410 opts->mode = LS_MODE_PARSER;
1412 ret = -E_AFT_SYNTAX;
1416 if (lls_opt_given(r_s)) {
1417 const char *val = lls_string_val(0, r_s);
1418 if (!strcmp(val, "p") || !strcmp(val, "path"))
1419 opts->sorting = LS_SORT_BY_PATH;
1420 else if (!strcmp(val, "s") || !strcmp(val, "score"))
1421 opts->sorting = LS_SORT_BY_SCORE;
1422 else if (!strcmp(val, "l") || !strcmp(val, "lastplayed"))
1423 opts->sorting = LS_SORT_BY_LAST_PLAYED;
1424 else if (!strcmp(val, "n") || !strcmp(val, "numplayed"))
1425 opts->sorting = LS_SORT_BY_NUM_PLAYED;
1426 else if (!strcmp(val, "f") || !strcmp(val, "frquency"))
1427 opts->sorting = LS_SORT_BY_FREQUENCY;
1428 else if (!strcmp(val, "c") || !strcmp(val, "channels"))
1429 opts->sorting = LS_SORT_BY_CHANNELS;
1430 else if (!strcmp(val, "i") || !strcmp(val, "image-id"))
1431 opts->sorting = LS_SORT_BY_IMAGE_ID;
1432 else if (!strcmp(val, "y") || !strcmp(val, "lyrics-id"))
1433 opts->sorting = LS_SORT_BY_LYRICS_ID;
1434 else if (!strcmp(val, "b") || !strcmp(val, "bitrate"))
1435 opts->sorting = LS_SORT_BY_BITRATE;
1436 else if (!strcmp(val, "d") || !strcmp(val, "duration"))
1437 opts->sorting = LS_SORT_BY_DURATION;
1438 else if (!strcmp(val, "a") || !strcmp(val, "audio-format"))
1439 opts->sorting = LS_SORT_BY_AUDIO_FORMAT;
1441 ret = -E_AFT_SYNTAX;
1445 ret = send_callback_request(com_ls_callback, &query,
1446 afs_cb_result_handler, cc);
1451 EXPORT_SERVER_CMD_HANDLER(ls);
1454 * Call the given function for each file in the audio file table.
1456 * \param private_data An arbitrary data pointer, passed to \a func.
1457 * \param func The custom function to be called.
1461 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1463 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1467 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1469 int ret = aft_get_row_of_hash(hash, result);
1471 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1476 static int find_path_brother(const char *path, struct osl_row **result)
1478 int ret = aft_get_row_of_path(path, result);
1480 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1485 /** The format of the data stored by save_audio_file_data(). */
1486 enum com_add_buffer_offsets {
1487 /* afhi (if present) starts at this offset. */
1488 CAB_AFHI_OFFSET_POS = 0,
1489 /** Start of the chunk table (if present). */
1490 CAB_CHUNKS_OFFSET_POS = 4,
1491 /** Start of the (serialized) lopsub parse result. */
1493 /** Audio format id. */
1494 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1495 /** The hash of the audio file being added. */
1496 CAB_HASH_OFFSET = 13,
1497 /** Start of the path of the audio file. */
1498 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1502 * Store the given data to a single buffer. Doesn't need the audio file selector
1503 * info struct as the server knows it as well.
1505 * It's OK to call this with afhi == NULL. In this case, the audio format
1506 * handler info won't be stored in the buffer.
1508 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1509 struct afh_info *afhi, const char *slpr, size_t slpr_size,
1510 uint8_t audio_format_num, struct osl_object *obj)
1512 size_t path_len = strlen(path) + 1;
1513 size_t afhi_size = sizeof_afhi_buf(afhi);
1514 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1515 + sizeof_chunk_table(afhi) + slpr_size;
1516 char *buf = para_malloc(size);
1519 assert(size <= ~(uint32_t)0);
1520 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1521 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1522 strcpy(buf + CAB_PATH_OFFSET, path);
1523 pos = CAB_PATH_OFFSET + path_len;
1524 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1525 save_afhi(afhi, buf + pos);
1527 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1529 save_chunk_table(afhi, buf + pos);
1530 pos += sizeof_chunk_table(afhi);
1532 write_u32(buf + CAB_LPR_OFFSET, pos);
1533 memcpy(buf + pos, slpr, slpr_size);
1534 assert(pos + slpr_size == size);
1541 Overview of the add command.
1543 Input: What was passed to the callback by the command handler.
1545 HS: Hash sister. Whether an audio file with identical hash
1546 already exists in the osl database.
1548 PB: Path brother. Whether a file with the given path exists
1551 F: Force flag given. Whether add was called with -f.
1553 output: Action performed by the callback.
1555 AFHI: Whether afhi and chunk table are computed and sent.
1556 ACTION: Table modifications to be done by the callback.
1558 +----+----+---+------+---------------------------------------------------+
1559 | HS | PB | F | AFHI | ACTION
1560 +----+----+---+------+---------------------------------------------------+
1561 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1562 | | update path, keep afsi
1563 +----+----+---+------+---------------------------------------------------+
1564 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1565 | | otherwise: remove PB, HS: update path, keep afhi,
1567 +----+----+---+------+---------------------------------------------------+
1568 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1570 +----+----+---+------+---------------------------------------------------+
1571 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1572 +----+----+---+------+---------------------------------------------------+
1573 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1574 | | (force has no effect)
1575 +----+----+---+------+---------------------------------------------------+
1576 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1577 +----+----+---+------+---------------------------------------------------+
1578 | N | N | Y | Y | (new file) create new entry (force has no effect)
1579 +----+----+---+------+---------------------------------------------------+
1580 | N | N | N | Y | (new file) create new entry
1581 +----+----+---+------+---------------------------------------------------+
1585 afhi <=> force or no HS
1590 static int com_add_callback(struct afs_callback_arg *aca)
1592 char *buf = aca->query.data, *path;
1593 struct osl_row *pb, *aft_row;
1595 struct osl_object objs[NUM_AFT_COLUMNS];
1596 unsigned char *hash;
1597 char asc[2 * HASH_SIZE + 1];
1599 char afsi_buf[AFSI_SIZE];
1600 char *slpr = buf + read_u32(buf + CAB_LPR_OFFSET);
1601 struct afs_info default_afsi = {.last_played = 0};
1602 uint16_t afhi_offset, chunks_offset;
1603 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1604 const struct lls_opt_result *r_f, *r_v;
1606 ret = lls_deserialize_parse_result(slpr, cmd, &aca->lpr);
1608 r_f = SERVER_CMD_OPT_RESULT(ADD, FORCE, aca->lpr);
1609 r_v = SERVER_CMD_OPT_RESULT(ADD, VERBOSE, aca->lpr);
1611 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1612 hash_to_asc(hash, asc);
1613 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1614 objs[AFTCOL_HASH].size = HASH_SIZE;
1616 path = buf + CAB_PATH_OFFSET;
1617 objs[AFTCOL_PATH].data = path;
1618 objs[AFTCOL_PATH].size = strlen(path) + 1;
1620 PARA_INFO_LOG("request to add %s\n", path);
1621 ret = find_hash_sister(hash, &hs);
1624 ret = find_path_brother(path, &pb);
1627 if (hs && pb && hs == pb && !lls_opt_given(r_f)) {
1628 if (lls_opt_given(r_v))
1629 para_printf(&aca->pbout, "ignoring duplicate\n");
1633 if (hs && hs != pb) {
1634 struct osl_object obj;
1635 if (pb) { /* hs trumps pb, remove pb */
1636 if (lls_opt_given(r_v))
1637 para_printf(&aca->pbout, "removing %s\n", path);
1638 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1641 ret = osl(osl_del_row(audio_file_table, pb));
1646 /* file rename, update hs' path */
1647 if (lls_opt_given(r_v)) {
1648 ret = osl(osl_get_object(audio_file_table, hs,
1649 AFTCOL_PATH, &obj));
1652 para_printf(&aca->pbout, "renamed from %s\n",
1655 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1656 &objs[AFTCOL_PATH]));
1659 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1662 if (!lls_opt_given(r_f))
1665 /* no hs or force mode, child must have sent afhi */
1666 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1667 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1669 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1670 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1672 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1674 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1675 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1676 if (pb && !hs) { /* update pb's hash */
1677 char old_asc[2 * HASH_SIZE + 1];
1678 unsigned char *old_hash;
1679 ret = get_hash_of_row(pb, &old_hash);
1682 hash_to_asc(old_hash, old_asc);
1683 if (lls_opt_given(r_v))
1684 para_printf(&aca->pbout, "file change: %s -> %s\n",
1686 ret = osl(osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1687 &objs[AFTCOL_HASH]));
1691 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1692 struct osl_row *row = pb? pb : hs;
1693 /* update afhi and chunk_table */
1694 if (lls_opt_given(r_v))
1695 para_printf(&aca->pbout,
1696 "updating afhi and chunk table\n");
1697 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1698 &objs[AFTCOL_AFHI]));
1701 /* truncate the file to size zero if there is no chunk table */
1702 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1703 &objs[AFTCOL_CHUNKS]));
1706 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1709 /* new entry, use default afsi */
1710 if (lls_opt_given(r_v))
1711 para_printf(&aca->pbout, "new file\n");
1712 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1713 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1715 objs[AFTCOL_AFSI].data = &afsi_buf;
1716 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1717 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1718 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1721 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1724 para_printf(&aca->pbout, "could not add %s\n", path);
1725 lls_free_parse_result(aca->lpr, cmd);
1729 /* Used by com_add(). */
1730 struct private_add_data {
1731 /* The pointer passed to the original command handler. */
1732 struct command_context *cc;
1733 /* Contains the flags given at the command line. */
1734 struct lls_parse_result *lpr;
1735 /* Serialized lopsub parse result. */
1737 /* Number of bytes. */
1741 static int path_brother_callback(struct afs_callback_arg *aca)
1743 char *path = aca->query.data;
1744 struct osl_row *path_brother;
1745 int ret = find_path_brother(path, &path_brother);
1748 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1749 sizeof(path_brother));
1752 static int hash_sister_callback(struct afs_callback_arg *aca)
1754 unsigned char *hash = aca->query.data;
1755 struct osl_row *hash_sister;
1756 int ret = find_hash_sister(hash, &hash_sister);
1760 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1761 sizeof(hash_sister));
1764 static int get_row_pointer_from_result(struct osl_object *result,
1765 __a_unused uint8_t band, void *private)
1767 struct osl_row **row = private;
1769 if (band == SBD_OUTPUT)
1770 *row = *(struct osl_row **)(result->data);
1774 static int add_one_audio_file(const char *path, void *private_data)
1776 int ret, send_ret = 1, fd;
1777 uint8_t format_num = -1;
1778 struct private_add_data *pad = private_data;
1779 struct afh_info afhi, *afhi_ptr = NULL;
1780 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1781 struct osl_object map, obj = {.data = NULL}, query;
1782 unsigned char hash[HASH_SIZE];
1783 bool a_given = SERVER_CMD_OPT_GIVEN(ADD, ALL, pad->lpr);
1784 bool f_given = SERVER_CMD_OPT_GIVEN(ADD, FORCE, pad->lpr);
1785 bool l_given = SERVER_CMD_OPT_GIVEN(ADD, LAZY, pad->lpr);
1786 bool v_given = SERVER_CMD_OPT_GIVEN(ADD, VERBOSE, pad->lpr);
1788 ret = guess_audio_format(path);
1789 if (ret < 0 && !a_given) {
1793 query.data = (char *)path;
1794 query.size = strlen(path) + 1;
1795 ret = send_callback_request(path_brother_callback, &query,
1796 get_row_pointer_from_result, &pb);
1797 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1800 if (pb && l_given) { /* lazy is really cheap */
1802 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1803 "lazy-ignore: %s\n", path);
1806 /* We still want to add this file. Compute its hash. */
1807 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1810 hash_function(map.data, map.size, hash);
1812 /* Check whether the database contains a file with the same hash. */
1814 query.size = HASH_SIZE;
1815 ret = send_callback_request(hash_sister_callback, &query,
1816 get_row_pointer_from_result, &hs);
1819 /* Return success if we already know this file. */
1821 if (pb && hs && hs == pb && !f_given) {
1823 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1824 "%s exists, not forcing update\n", path);
1828 * We won't recalculate the audio format info and the chunk table if
1829 * there is a hash sister and FORCE was not given.
1831 if (!hs || f_given) {
1832 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1838 munmap(map.data, map.size);
1841 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1842 "adding %s\n", path);
1846 save_add_callback_buffer(hash, path, afhi_ptr, pad->slpr,
1847 pad->slpr_size, format_num, &obj);
1848 /* Ask afs to consider this entry for adding. */
1849 ret = send_callback_request(com_add_callback, &obj,
1850 afs_cb_result_handler, pad->cc);
1855 munmap(map.data, map.size);
1857 if (ret < 0 && send_ret >= 0)
1858 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1859 "failed to add %s (%s)\n", path, para_strerror(-ret));
1861 clear_afhi(afhi_ptr);
1862 /* Stop adding files only on send errors. */
1866 static int com_add(struct command_context *cc, struct lls_parse_result *lpr)
1869 struct private_add_data pad = {.cc = cc, .lpr = lpr};
1870 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1871 unsigned num_inputs;
1874 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
1876 send_errctx(cc, errctx);
1879 ret = lls_serialize_parse_result(lpr, cmd, &pad.slpr, &pad.slpr_size);
1881 num_inputs = lls_num_inputs(lpr);
1882 for (i = 0; i < num_inputs; i++) {
1884 ret = verify_path(lls_input(i, lpr), &path);
1886 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1887 lls_input(i, lpr), para_strerror(-ret));
1892 if (ret == 1) /* directory */
1893 ret = for_each_file_in_dir(path, add_one_audio_file,
1895 else /* regular file */
1896 ret = add_one_audio_file(path, &pad);
1898 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1899 para_strerror(-ret));
1910 EXPORT_SERVER_CMD_HANDLER(add);
1913 * Flags used by the touch command.
1918 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1919 TOUCH_FLAG_FNM_PATHNAME = 1,
1920 /** Activates verbose mode. */
1921 TOUCH_FLAG_VERBOSE = 2
1924 static int touch_audio_file(__a_unused struct osl_table *table,
1925 struct osl_row *row, const char *name, void *data)
1927 struct afs_callback_arg *aca = data;
1928 bool v_given = SERVER_CMD_OPT_GIVEN(TOUCH, VERBOSE, aca->lpr);
1929 const struct lls_opt_result *r_n, *r_l, *r_i, *r_y, *r_a;
1931 struct osl_object obj;
1932 struct afs_info old_afsi, new_afsi;
1934 struct afsi_change_event_data aced;
1936 r_n = SERVER_CMD_OPT_RESULT(TOUCH, NUMPLAYED, aca->lpr);
1937 r_l = SERVER_CMD_OPT_RESULT(TOUCH, LASTPLAYED, aca->lpr);
1938 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1939 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
1940 r_a = SERVER_CMD_OPT_RESULT(TOUCH, AMP, aca->lpr);
1941 no_options = !lls_opt_given(r_n) && !lls_opt_given(r_l) && !lls_opt_given(r_i)
1942 && !lls_opt_given(r_y) && !lls_opt_given(r_a);
1944 ret = get_afsi_object_of_row(row, &obj);
1946 para_printf(&aca->pbout, "cannot touch %s\n", name);
1949 ret = load_afsi(&old_afsi, &obj);
1951 para_printf(&aca->pbout, "cannot touch %s\n", name);
1954 new_afsi = old_afsi;
1956 new_afsi.num_played++;
1957 new_afsi.last_played = time(NULL);
1959 para_printf(&aca->pbout, "%s: num_played = %u, "
1960 "last_played = now()\n", name,
1961 new_afsi.num_played);
1963 if (lls_opt_given(r_l))
1964 new_afsi.last_played = lls_uint64_val(0, r_l);
1965 if (lls_opt_given(r_n))
1966 new_afsi.num_played = lls_uint32_val(0, r_n);
1967 if (lls_opt_given(r_i))
1968 new_afsi.image_id = lls_uint32_val(0, r_i);
1969 if (lls_opt_given(r_y))
1970 new_afsi.lyrics_id = lls_uint32_val(0, r_y);
1971 if (lls_opt_given(r_a))
1972 new_afsi.amp = lls_uint32_val(0, r_a);
1974 para_printf(&aca->pbout, "touching %s\n", name);
1976 save_afsi(&new_afsi, &obj); /* in-place update */
1978 aced.old_afsi = &old_afsi;
1979 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
1982 static int com_touch_callback(struct afs_callback_arg *aca)
1984 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
1986 const struct lls_opt_result *r_i, *r_y;
1988 struct pattern_match_data pmd = {
1989 .table = audio_file_table,
1990 .loop_col_num = AFTCOL_HASH,
1991 .match_col_num = AFTCOL_PATH,
1993 .action = touch_audio_file
1996 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2000 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
2001 if (lls_opt_given(r_i)) {
2002 uint32_t id = lls_uint32_val(0, r_i);
2003 ret = img_get_name_by_id(id, NULL);
2005 para_printf(&aca->pbout, "invalid image ID: %u\n", id);
2009 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
2010 if (lls_opt_given(r_y)) {
2011 uint32_t id = lls_uint32_val(0, r_y);
2012 ret = lyr_get_name_by_id(id, NULL);
2014 para_printf(&aca->pbout, "invalid lyrics ID: %u\n", id);
2018 p_given = SERVER_CMD_OPT_GIVEN(TOUCH, PATHNAME_MATCH, aca->lpr);
2020 pmd.fnmatch_flags |= FNM_PATHNAME;
2021 ret = for_each_matching_row(&pmd);
2022 if (ret >= 0 && pmd.num_matches == 0)
2024 lls_free_parse_result(aca->lpr, cmd);
2028 static int com_touch(struct command_context *cc, struct lls_parse_result *lpr)
2030 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
2034 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2036 send_errctx(cc, errctx);
2039 return send_lls_callback_request(com_touch_callback, cmd, lpr, cc);
2041 EXPORT_SERVER_CMD_HANDLER(touch);
2043 static int remove_audio_file(__a_unused struct osl_table *table,
2044 struct osl_row *row, const char *name, void *data)
2046 struct afs_callback_arg *aca = data;
2047 bool v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2051 para_printf(&aca->pbout, "removing %s\n", name);
2052 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2055 ret = osl(osl_del_row(audio_file_table, row));
2057 para_printf(&aca->pbout, "cannot remove %s\n", name);
2061 static int com_rm_callback(struct afs_callback_arg *aca)
2063 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2065 struct pattern_match_data pmd = {
2066 .table = audio_file_table,
2067 .loop_col_num = AFTCOL_HASH,
2068 .match_col_num = AFTCOL_PATH,
2070 .action = remove_audio_file
2072 bool v_given, p_given, f_given;
2074 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2077 v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2078 p_given = SERVER_CMD_OPT_GIVEN(RM, PATHNAME_MATCH, aca->lpr);
2079 f_given = SERVER_CMD_OPT_GIVEN(RM, FORCE, aca->lpr);
2082 pmd.fnmatch_flags |= FNM_PATHNAME;
2083 ret = for_each_matching_row(&pmd);
2086 if (pmd.num_matches == 0) {
2090 para_printf(&aca->pbout, "removed %u file(s)\n",
2093 lls_free_parse_result(aca->lpr, cmd);
2097 /* TODO options: -r (recursive) */
2098 static int com_rm(struct command_context *cc, struct lls_parse_result *lpr)
2100 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2104 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2106 send_errctx(cc, errctx);
2109 return send_lls_callback_request(com_rm_callback, cmd, lpr, cc);
2111 EXPORT_SERVER_CMD_HANDLER(rm);
2113 /** Data passed to the action handler of com_cpsi(). */
2114 struct cpsi_action_data {
2115 /** Values are copied from here. */
2116 struct afs_info source_afsi;
2117 /** What was passed to com_cpsi_callback(). */
2118 struct afs_callback_arg *aca;
2122 static int copy_selector_info(__a_unused struct osl_table *table,
2123 struct osl_row *row, const char *name, void *data)
2125 struct cpsi_action_data *cad = data;
2126 struct osl_object target_afsi_obj;
2128 struct afs_info old_afsi, target_afsi;
2129 struct afsi_change_event_data aced;
2130 bool a_given, y_given, i_given, l_given, n_given, v_given;
2132 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, cad->aca->lpr);
2133 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, cad->aca->lpr);
2134 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, cad->aca->lpr);
2135 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, cad->aca->lpr);
2136 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, cad->aca->lpr);
2137 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, cad->aca->lpr);
2139 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2142 ret = load_afsi(&target_afsi, &target_afsi_obj);
2145 old_afsi = target_afsi;
2146 if (cad->copy_all || y_given)
2147 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2148 if (cad->copy_all || i_given)
2149 target_afsi.image_id = cad->source_afsi.image_id;
2150 if (cad->copy_all || l_given)
2151 target_afsi.last_played = cad->source_afsi.last_played;
2152 if (cad->copy_all || n_given)
2153 target_afsi.num_played = cad->source_afsi.num_played;
2154 if (cad->copy_all || a_given)
2155 target_afsi.attributes = cad->source_afsi.attributes;
2156 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2158 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2160 aced.old_afsi = &old_afsi;
2161 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2164 static int com_cpsi_callback(struct afs_callback_arg *aca)
2166 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2167 bool a_given, y_given, i_given, l_given, n_given, v_given;
2168 struct cpsi_action_data cad = {.aca = aca};
2170 struct pattern_match_data pmd = {
2171 .table = audio_file_table,
2172 .loop_col_num = AFTCOL_HASH,
2173 .match_col_num = AFTCOL_PATH,
2174 .input_skip = 1, /* skip first argument (source file) */
2176 .action = copy_selector_info
2179 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2183 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, aca->lpr);
2184 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, aca->lpr);
2185 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, aca->lpr);
2186 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, aca->lpr);
2187 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, aca->lpr);
2188 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, aca->lpr);
2189 cad.copy_all = !a_given && !y_given && !i_given && !l_given && !n_given;
2191 ret = get_afsi_of_path(lls_input(0, aca->lpr), &cad.source_afsi);
2194 ret = for_each_matching_row(&pmd);
2197 if (pmd.num_matches > 0) {
2199 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2204 lls_free_parse_result(aca->lpr, cmd);
2208 static int com_cpsi(struct command_context *cc, struct lls_parse_result *lpr)
2210 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2212 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2214 send_errctx(cc, errctx);
2217 return send_lls_callback_request(com_cpsi_callback, cmd, lpr, cc);
2219 EXPORT_SERVER_CMD_HANDLER(cpsi);
2221 struct change_atts_data {
2222 uint64_t add_mask, del_mask;
2223 struct afs_callback_arg *aca;
2226 static int change_atts(__a_unused struct osl_table *table,
2227 struct osl_row *row, __a_unused const char *name, void *data)
2230 struct osl_object obj;
2231 struct afs_info old_afsi, new_afsi;
2232 struct afsi_change_event_data aced = {
2234 .old_afsi = &old_afsi
2236 struct change_atts_data *cad = data;
2238 ret = get_afsi_object_of_row(row, &obj);
2241 ret = load_afsi(&old_afsi, &obj);
2244 new_afsi = old_afsi;
2245 new_afsi.attributes |= cad->add_mask;
2246 new_afsi.attributes &= ~cad->del_mask;
2247 save_afsi(&new_afsi, &obj); /* in-place update */
2248 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2251 static int com_setatt_callback(struct afs_callback_arg *aca)
2253 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2255 struct change_atts_data cad = {.aca = aca};
2256 struct pattern_match_data pmd = {
2257 .table = audio_file_table,
2258 .loop_col_num = AFTCOL_HASH,
2259 .match_col_num = AFTCOL_PATH,
2260 .pm_flags = PM_SKIP_EMPTY_NAME,
2262 .action = change_atts
2264 unsigned num_inputs;
2266 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2270 num_inputs = lls_num_inputs(aca->lpr);
2271 for (i = 0; i < num_inputs; i++) {
2272 unsigned char bitnum;
2274 const char *arg = lls_input(i, aca->lpr);
2276 size_t len = strlen(arg);
2278 ret = -E_ATTR_SYNTAX;
2282 if (c != '+' && c != '-') {
2283 if (cad.add_mask == 0 && cad.del_mask == 0)
2284 goto out; /* no attribute modifier given */
2287 p = para_malloc(len);
2288 memcpy(p, arg, len - 1);
2290 ret = get_attribute_bitnum_by_name(p, &bitnum);
2293 para_printf(&aca->pbout, "invalid argument: %s\n", arg);
2297 cad.add_mask |= (one << bitnum);
2299 cad.del_mask |= (one << bitnum);
2301 /* no pattern given */
2302 ret = -E_ATTR_SYNTAX;
2306 ret = for_each_matching_row(&pmd);
2307 if (ret >= 0 && pmd.num_matches == 0)
2310 lls_free_parse_result(aca->lpr, cmd);
2314 static int com_setatt(struct command_context *cc, struct lls_parse_result *lpr)
2316 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2318 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2321 send_errctx(cc, errctx);
2324 return send_lls_callback_request(com_setatt_callback, cmd, lpr, cc);
2326 EXPORT_SERVER_CMD_HANDLER(setatt);
2328 static int afs_stat_callback(struct afs_callback_arg *aca)
2330 int *parser_friendly = aca->query.data;
2331 char *buf = *parser_friendly?
2332 parser_friendly_status_items : status_items;
2336 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2340 * Get the current afs status items from the afs process and send it.
2342 * \param cc The command context, used e.g. for data encryption.
2343 * \param parser_friendly Whether parser-friendly output format should be used.
2345 * As the contents of the afs status items change in time and the command
2346 * handler only has a COW version created at fork time, it can not send
2347 * up-to-date afs status items directly. Therefore the usual callback mechanism
2348 * is used to pass the status items from the afs process to the command handler
2349 * via a shared memory area and a pipe.
2351 * \return The return value of the underlying call to \ref send_callback_request().
2353 int send_afs_status(struct command_context *cc, int parser_friendly)
2355 struct osl_object query = {.data = &parser_friendly,
2356 .size = sizeof(parser_friendly)};
2358 return send_callback_request(afs_stat_callback, &query,
2359 afs_cb_result_handler, cc);
2362 /* returns success on non-fatal errors to keep the loop going */
2363 static int check_audio_file(struct osl_row *row, void *data)
2366 struct para_buffer *pb = data;
2367 struct stat statbuf;
2368 int ret = get_audio_file_path_of_row(row, &path);
2369 struct afs_info afsi;
2373 para_printf(pb, "%s\n", para_strerror(-ret));
2376 if (stat(path, &statbuf) < 0)
2377 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2378 else if (!S_ISREG(statbuf.st_mode))
2379 para_printf(pb, "%s: not a regular file\n", path);
2380 ret = get_afsi_of_row(row, &afsi);
2382 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2385 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2387 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2388 para_strerror(-ret));
2389 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2391 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2392 para_strerror(-ret));
2397 * Check the audio file table for inconsistencies.
2399 * \param aca Only ->pbout is used for diagnostics.
2401 * \return Standard. Inconsistencies are reported but not regarded as an error.
2405 int aft_check_callback(struct afs_callback_arg *aca)
2407 para_printf(&aca->pbout, "checking audio file table...\n");
2408 return audio_file_loop(&aca->pbout, check_audio_file);
2411 struct aft_check_atts_data {
2413 struct para_buffer *pb;
2416 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2418 struct aft_check_atts_data *acad = data;
2420 struct afs_info afsi;
2424 ret = get_afsi_of_row(row, &afsi);
2426 para_printf(acad->pb, "cannot get afsi\n");
2429 bad_bits = afsi.attributes & ~acad->att_mask;
2430 if (bad_bits == 0) /* OK */
2432 ret = get_audio_file_path_of_row(row, &path);
2434 para_printf(acad->pb, "cannot get path\n");
2437 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2439 /* return success to keep looping */
2444 * Iterate over all audio files and check the attribute bit mask.
2446 * \param att_mask The mask of all valid attributes.
2447 * \param pb Used for reporting inconsistencies.
2449 * This reads the attribute bit mask of each audio file from the afs info
2450 * structure stored in the audio file table and verifies that all set bits are
2451 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2452 * attribute table. Audio files for which this is not the case are reported via
2455 * \return Standard. Inconsistencies are not regarded as errors.
2457 * \sa \ref attribute_check_callback().
2459 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2461 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2463 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2464 return audio_file_loop(&acad, check_atts_of_audio_file);
2468 * Close the audio file table.
2470 * \param flags Usual flags that are passed to osl_close_table().
2472 * \sa osl_close_table().
2474 static void aft_close(void)
2476 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2477 audio_file_table = NULL;
2481 * Open the audio file table.
2483 * \param dir The database directory.
2487 * \sa osl_open_table().
2489 static int aft_open(const char *dir)
2493 audio_file_table_desc.dir = dir;
2494 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2497 osl_get_num_rows(audio_file_table, &num);
2498 PARA_INFO_LOG("audio file table contains %u files\n", num);
2501 PARA_NOTICE_LOG("failed to open audio file table\n");
2502 audio_file_table = NULL;
2503 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2508 static int aft_create(const char *dir)
2510 audio_file_table_desc.dir = dir;
2511 return osl(osl_create_table(&audio_file_table_desc));
2514 static int clear_attribute(struct osl_row *row, void *data)
2516 struct rmatt_event_data *red = data;
2517 struct afs_info afsi;
2518 struct osl_object obj;
2519 int ret = get_afsi_object_of_row(row, &obj);
2520 uint64_t mask = ~(1ULL << red->bitnum);
2524 ret = load_afsi(&afsi, &obj);
2527 afsi.attributes &= mask;
2528 save_afsi(&afsi, &obj);
2532 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2538 case ATTRIBUTE_REMOVE: {
2539 const struct rmatt_event_data *red = data;
2540 para_printf(pb, "clearing attribute %s (bit %u) from all "
2541 "entries in the audio file table\n", red->name,
2543 return audio_file_loop(data, clear_attribute);
2544 } case AFSI_CHANGE: {
2545 struct afsi_change_event_data *aced = data;
2546 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2547 if (aced->aft_row != current_aft_row)
2549 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2552 status_item_ls_data.afsi.last_played = old_last_played;
2553 make_status_items();
2555 } case AFHI_CHANGE: {
2556 if (data != current_aft_row)
2558 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2561 make_status_items();
2568 * These events are rare. We don't bother to check whether the
2569 * current status items are affected and simply recreate them
2572 make_status_items();
2579 * Initialize the audio file table.
2581 * \param t Pointer to the structure to be initialized.
2583 void aft_init(struct afs_table *t)
2586 t->close = aft_close;
2587 t->create = aft_create;
2588 t->event_handler = aft_event_handler;