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 \ref 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.
170 * \sa \ref load_afsi().
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.
195 * \sa \ref save_afsi().
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 \ref 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 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
595 struct osl_object obj;
596 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
600 load_afhi(obj.data, afhi);
604 /* returns shmid on success */
605 static int save_afd(struct audio_file_data *afd)
607 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
608 int shmid, ret = shm_new(size);
615 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
620 save_chunk_table(&afd->afhi, buf);
621 if (afd->afhi.max_chunk_size == 0) { /* v0.5.x on-disk afhi */
622 set_max_chunk_size(&afd->afhi);
623 PARA_NOTICE_LOG("max chunk size unset, re-add required\n");
625 PARA_INFO_LOG("using max chunk size from afhi\n");
626 afd->max_chunk_size = afd->afhi.max_chunk_size;
627 *(struct audio_file_data *)shm_afd = *afd;
636 * Extract a afd stored in a shared memory area.
638 * Attach the shared memory area given by \a shmid, load the audio file data
639 * stored therein and detach the area afterwards. Called by vss, after
640 * receiving a positive response to the request for the next audio file.
642 * \param shmid The identifier of the shared memory area containing the afd.
643 * \param afd Result pointer.
647 int load_afd(int shmid, struct audio_file_data *afd)
651 struct osl_object obj;
653 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
656 ret = shm_size(shmid, &obj.size);
659 *afd = *(struct audio_file_data *)shm_afd;
660 obj.data = shm_afd + sizeof(*afd);
661 obj.size -= sizeof(*afd);
662 load_chunk_table(&afd->afhi, &obj);
669 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
670 time_t current_time, enum ls_listing_mode lm)
674 * Omit year but show time if the given value is closer to the current
675 * time than this many seconds.
677 const time_t m = 6 * 30 * 24 * 3600; /* six months */
679 tm = localtime((time_t *)seconds);
682 if (lm == LS_MODE_MBOX) {
683 if (!strftime(buf, size, "%c", tm))
687 if (*seconds > current_time - m && *seconds < current_time + m) {
688 if (!strftime(buf, size, "%b %e %k:%M", tm))
693 * If the given time is more than six month away from the current time,
694 * we print only the year. The additional space character in the format
695 * string below makes the formated date align nicely with dates that
696 * contain the time (those written by the above strftime() statement).
698 if (!strftime(buf, size, "%b %e %Y", tm))
703 /** Compute the number of (decimal) digits of a number. */
704 #define GET_NUM_DIGITS(x, num) { \
705 typeof((x)) _tmp = PARA_ABS(x); \
708 while ((_tmp) > 9) { \
714 __a_const static short unsigned get_duration_width(int seconds)
716 short unsigned width;
717 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
719 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
720 return 4 + (mins > 9);
721 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
722 GET_NUM_DIGITS(hours, &width);
726 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
728 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
729 short unsigned max_width;
731 if (!hours) { /* m:ss or mm:ss */
732 max_width = opts->mode == LS_MODE_LONG?
733 opts->widths.duration_width : 4;
734 sprintf(buf, "%*u:%02d", max_width - 3, mins, seconds % 60);
735 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
736 max_width = opts->mode == LS_MODE_LONG?
737 opts->widths.duration_width : 7;
738 sprintf(buf, "%*u:%02u:%02d", max_width - 6, hours, mins,
743 static int write_attribute_items(struct para_buffer *b,
744 const char *att_bitmap, struct afs_info *afsi)
749 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
750 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
753 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
758 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
762 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
763 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
764 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
765 lyrics_name : "(none)");
768 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
772 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
773 img_get_name_by_id(afsi->image_id, &image_name);
774 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
775 image_name : "(none)");
778 static void write_filename_items(struct para_buffer *b, const char *path,
784 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
787 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
788 val = para_basename(path);
789 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
790 val = para_dirname(path);
791 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
795 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
797 struct osl_object chunk_table_obj;
798 struct osl_row *aft_row;
802 ret = aft_get_row_of_hash(d->hash, &aft_row);
805 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
806 AFTCOL_CHUNKS, &chunk_table_obj));
809 para_printf(b, "%s\n"
810 "chunk_time: %lu:%lu\nchunk_offsets: ",
812 (long unsigned) d->afhi.chunk_tv.tv_sec,
813 (long unsigned) d->afhi.chunk_tv.tv_usec
815 buf = chunk_table_obj.data;
818 i <= d->afhi.chunks_total && 4 * i + 3 < chunk_table_obj.size;
821 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
822 para_printf(b, "\n");
824 osl_close_disk_object(&chunk_table_obj);
828 static int print_list_item(struct ls_data *d, struct ls_options *opts,
829 struct para_buffer *b, time_t current_time)
831 const struct lls_opt_result *r_a = SERVER_CMD_OPT_RESULT(LS, ADMISSIBLE, opts->lpr);
832 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME, opts->lpr);
833 const struct lls_opt_result *r_d = SERVER_CMD_OPT_RESULT(LS, UNIX_DATE, opts->lpr);
836 char last_played_time[30];
837 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
838 struct afs_info *afsi = &d->afsi;
839 struct afh_info *afhi = &d->afhi;
840 char asc_hash[2 * HASH_SIZE + 1];
842 if (opts->mode == LS_MODE_SHORT) {
843 para_printf(b, "%s\n", d->path);
847 if (opts->mode == LS_MODE_CHUNKS) {
848 ret = print_chunk_table(d, b);
851 get_attribute_bitmap(&afsi->attributes, att_buf);
852 if (lls_opt_given(r_d))
853 sprintf(last_played_time, "%llu",
854 (long long unsigned)afsi->last_played);
856 ret = get_local_time(&afsi->last_played, last_played_time,
857 sizeof(last_played_time), current_time, opts->mode);
861 get_duration_buf(afhi->seconds_total, duration_buf, opts);
862 if (opts->mode == LS_MODE_LONG) {
863 struct ls_widths *w = &opts->widths;
864 if (lls_opt_given(r_a))
865 para_printf(b, "%*li ", opts->widths.score_width,
868 "%s " /* attributes */
870 "%*u " /* image_id */
871 "%*u " /* lyrics_id */
873 "%*s " /* audio format */
874 "%*u " /* frequency */
877 "%*u " /* num_played */
878 "%s " /* last_played */
881 w->amp_width, afsi->amp,
882 w->image_id_width, afsi->image_id,
883 w->lyrics_id_width, afsi->lyrics_id,
884 w->bitrate_width, afhi->bitrate,
885 w->audio_format_width,
886 audio_format_name(afsi->audio_format_id),
887 w->frequency_width, afhi->frequency,
890 w->num_played_width, afsi->num_played,
897 if (opts->mode == LS_MODE_MBOX) {
898 const char *bn = para_basename(d->path);
900 "From foo@localhost %s\n"
901 "Received: from\nTo: bar\nFrom: a\n"
906 write_filename_items(b, d->path, lls_opt_given(r_b));
907 if (lls_opt_given(r_a))
908 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
909 ret = write_attribute_items(b, att_buf, afsi);
912 write_image_items(b, afsi);
913 write_lyrics_items(b, afsi);
914 hash_to_asc(d->hash, asc_hash);
915 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
916 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
917 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
918 audio_format_name(afsi->audio_format_id));
919 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
920 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
921 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
922 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
923 afhi->seconds_total);
924 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
925 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%u\n", afsi->num_played);
926 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
927 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
928 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
930 WRITE_STATUS_ITEM(b, SI_MAX_CHUNK_SIZE, "%" PRIu32 "\n",
931 afhi->max_chunk_size);
932 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
933 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
934 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
935 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
936 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
937 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
938 if (opts->mode == LS_MODE_MBOX) {
939 struct osl_object lyrics_def;
940 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
941 if (lyrics_def.data) {
942 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
943 (char *)lyrics_def.data);
944 osl_close_disk_object(&lyrics_def);
951 static struct ls_data status_item_ls_data;
952 static struct osl_row *current_aft_row;
954 static void make_inode_status_items(struct para_buffer *pb)
956 struct stat statbuf = {.st_size = 0};
957 char *path, mtime_str[30] = "\0";
961 ret = get_audio_file_path_of_row(current_aft_row, &path);
964 ret = stat(path, &statbuf);
967 localtime_r(&statbuf.st_mtime, &mtime_tm);
968 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
969 assert(ret > 0); /* number of bytes placed in mtime_str */
971 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
972 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
975 static int make_status_items(void)
977 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
978 char *argv[] = {"ls", "--admissible", "--listing-mode=verbose"};
979 struct ls_options opts = {.mode = LS_MODE_VERBOSE};
980 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
984 ret = lls_parse(ARRAY_SIZE(argv), argv, cmd, &opts.lpr, NULL);
987 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
990 make_inode_status_items(&pb);
992 status_items = pb.buf;
994 memset(&pb, 0, sizeof(pb));
995 pb.max_size = shm_get_shmmax() - 1;
996 pb.flags = PBF_SIZE_PREFIX;
997 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1000 status_items = NULL;
1003 make_inode_status_items(&pb);
1004 free(parser_friendly_status_items);
1005 parser_friendly_status_items = pb.buf;
1008 lls_free_parse_result(opts.lpr, cmd);
1013 * Open the audio file with highest score and set up an afd structure.
1015 * \param afd Result pointer.
1017 * On success, the numplayed field of the audio file selector info is increased
1018 * and the lastplayed time is set to the current time. Finally, the score of
1019 * the audio file is updated.
1021 * \return Positive shmid on success, negative on errors.
1023 int open_and_update_audio_file(struct audio_file_data *afd)
1025 unsigned char file_hash[HASH_SIZE];
1026 struct osl_object afsi_obj;
1027 struct afs_info new_afsi;
1029 struct afsi_change_event_data aced;
1030 struct osl_object map, chunk_table_obj;
1031 struct ls_data *d = &status_item_ls_data;
1033 ret = score_get_best(¤t_aft_row, &d->score);
1036 ret = get_hash_of_row(current_aft_row, &d->hash);
1039 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1042 PARA_NOTICE_LOG("%s\n", d->path);
1043 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1046 ret = load_afsi(&d->afsi, &afsi_obj);
1049 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1052 d->afhi = afd->afhi;
1053 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1054 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1055 AFTCOL_CHUNKS, &chunk_table_obj));
1057 if (!afh_supports_dynamic_chunks(d->afsi.audio_format_id))
1059 PARA_INFO_LOG("no chunk table for %s\n", d->path);
1060 chunk_table_obj.data = NULL;
1061 chunk_table_obj.size = 0;
1063 PARA_INFO_LOG("chunk table: %zu bytes\n", chunk_table_obj.size);
1065 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1068 hash_function(map.data, map.size, file_hash);
1069 ret = hash_compare(file_hash, d->hash);
1070 para_munmap(map.data, map.size);
1072 ret = -E_HASH_MISMATCH;
1076 new_afsi.num_played++;
1077 new_afsi.last_played = time(NULL);
1078 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1080 afd->audio_format_id = d->afsi.audio_format_id;
1081 load_chunk_table(&afd->afhi, &chunk_table_obj);
1082 aced.aft_row = current_aft_row;
1083 aced.old_afsi = &d->afsi;
1085 * No need to update the status items as the AFSI_CHANGE event will
1088 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1091 ret = save_afd(afd);
1093 free(afd->afhi.chunk_table);
1094 if (chunk_table_obj.data)
1095 osl_close_disk_object(&chunk_table_obj);
1097 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1098 ret = score_delete(current_aft_row);
1105 static int ls_audio_format_compare(const void *a, const void *b)
1107 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1108 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1111 static int ls_duration_compare(const void *a, const void *b)
1113 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1114 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1117 static int ls_bitrate_compare(const void *a, const void *b)
1119 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1120 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1123 static int ls_lyrics_id_compare(const void *a, const void *b)
1125 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1126 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1129 static int ls_image_id_compare(const void *a, const void *b)
1131 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1132 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1135 static int ls_channels_compare(const void *a, const void *b)
1137 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1138 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1141 static int ls_frequency_compare(const void *a, const void *b)
1143 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1144 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1147 static int ls_num_played_compare(const void *a, const void *b)
1149 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1150 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1153 static int ls_last_played_compare(const void *a, const void *b)
1155 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1156 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1159 static int ls_score_compare(const void *a, const void *b)
1161 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1162 return NUM_COMPARE(d1->score, d2->score);
1165 static int ls_path_compare(const void *a, const void *b)
1167 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1168 return strcmp(d1->path, d2->path);
1171 static inline bool admissible_only(struct ls_options *opts)
1173 return SERVER_CMD_OPT_GIVEN(LS, ADMISSIBLE, opts->lpr)
1174 || opts->sorting == LS_SORT_BY_SCORE;
1177 static int sort_matching_paths(struct ls_options *options)
1179 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME,
1181 size_t nmemb = options->num_matching_paths;
1182 size_t size = sizeof(*options->data_ptr);
1183 int (*compar)(const void *, const void *);
1186 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1187 for (i = 0; i < nmemb; i++)
1188 options->data_ptr[i] = options->data + i;
1190 /* In these cases the array is already sorted */
1191 if (admissible_only(options)) {
1192 if (options->sorting == LS_SORT_BY_SCORE)
1195 if (options->sorting == LS_SORT_BY_PATH && !lls_opt_given(r_b))
1199 switch (options->sorting) {
1200 case LS_SORT_BY_PATH:
1201 compar = ls_path_compare; break;
1202 case LS_SORT_BY_SCORE:
1203 compar = ls_score_compare; break;
1204 case LS_SORT_BY_LAST_PLAYED:
1205 compar = ls_last_played_compare; break;
1206 case LS_SORT_BY_NUM_PLAYED:
1207 compar = ls_num_played_compare; break;
1208 case LS_SORT_BY_FREQUENCY:
1209 compar = ls_frequency_compare; break;
1210 case LS_SORT_BY_CHANNELS:
1211 compar = ls_channels_compare; break;
1212 case LS_SORT_BY_IMAGE_ID:
1213 compar = ls_image_id_compare; break;
1214 case LS_SORT_BY_LYRICS_ID:
1215 compar = ls_lyrics_id_compare; break;
1216 case LS_SORT_BY_BITRATE:
1217 compar = ls_bitrate_compare; break;
1218 case LS_SORT_BY_DURATION:
1219 compar = ls_duration_compare; break;
1220 case LS_SORT_BY_AUDIO_FORMAT:
1221 compar = ls_audio_format_compare; break;
1225 qsort(options->data_ptr, nmemb, size, compar);
1229 /* row is either an aft_row or a row of the score table */
1230 /* TODO: Only compute widths if we need them */
1231 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1234 struct ls_options *options = ls_opts;
1235 bool basename_given = SERVER_CMD_OPT_GIVEN(LS, BASENAME, options->lpr);
1237 struct ls_widths *w;
1238 unsigned short num_digits;
1239 unsigned tmp, num_inputs;
1240 struct osl_row *aft_row;
1244 if (admissible_only(options)) {
1245 ret = get_score_and_aft_row(row, &score, &aft_row);
1252 ret = get_audio_file_path_of_row(aft_row, &path);
1255 if (basename_given) {
1256 char *p = strrchr(path, '/');
1260 num_inputs = lls_num_inputs(options->lpr);
1261 if (num_inputs > 0) {
1262 for (i = 0; i < num_inputs; i++) {
1263 ret = fnmatch(lls_input(i, options->lpr), path, 0);
1266 if (ret == FNM_NOMATCH)
1270 if (i >= num_inputs) /* no match */
1273 tmp = options->num_matching_paths++;
1274 if (options->num_matching_paths > options->array_size) {
1275 options->array_size++;
1276 options->array_size *= 2;
1277 options->data = para_realloc(options->data, options->array_size
1278 * sizeof(*options->data));
1280 d = options->data + tmp;
1281 ret = get_afsi_of_row(aft_row, &d->afsi);
1284 ret = get_afhi_of_row(aft_row, &d->afhi);
1288 ret = get_hash_of_row(aft_row, &d->hash);
1291 w = &options->widths;
1292 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1293 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1294 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1295 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1296 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1297 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1298 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1299 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1300 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1301 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1302 /* get the number of chars to print this amount of time */
1303 num_digits = get_duration_width(d->afhi.seconds_total);
1304 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1305 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1306 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1307 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1308 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1309 if (admissible_only(options)) {
1310 GET_NUM_DIGITS(score, &num_digits);
1311 num_digits++; /* add one for the sign (space or "-") */
1312 w->score_width = PARA_MAX(w->score_width, num_digits);
1320 static int com_ls_callback(struct afs_callback_arg *aca)
1322 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1323 struct ls_options *opts = aca->query.data;
1325 time_t current_time;
1326 const struct lls_opt_result *r_r;
1328 ret = lls_deserialize_parse_result(
1329 (char *)aca->query.data + sizeof(*opts), cmd, &opts->lpr);
1331 r_r = SERVER_CMD_OPT_RESULT(LS, REVERSE, opts->lpr);
1333 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1334 if (admissible_only(opts))
1335 ret = admissible_file_loop(opts, prepare_ls_row);
1337 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1341 if (opts->num_matching_paths == 0) {
1342 ret = lls_num_inputs(opts->lpr) > 0? -E_NO_MATCH : 0;
1345 ret = sort_matching_paths(opts);
1348 time(¤t_time);
1349 if (lls_opt_given(r_r))
1350 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1351 ret = print_list_item(opts->data_ptr[i], opts,
1352 &aca->pbout, current_time);
1357 for (i = 0; i < opts->num_matching_paths; i++) {
1358 ret = print_list_item(opts->data_ptr[i], opts,
1359 &aca->pbout, current_time);
1364 lls_free_parse_result(opts->lpr, cmd);
1366 free(opts->data_ptr);
1370 /* TODO: flags -h (sort by hash) */
1371 static int com_ls(struct command_context *cc, struct lls_parse_result *lpr)
1373 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1374 struct ls_options *opts;
1375 struct osl_object query;
1376 const struct lls_opt_result *r_l = SERVER_CMD_OPT_RESULT(LS, LISTING_MODE,
1378 const struct lls_opt_result *r_s = SERVER_CMD_OPT_RESULT(LS, SORT, lpr);
1382 ret = lls_serialize_parse_result(lpr, cmd, NULL, &query.size);
1384 query.size += sizeof(*opts);
1385 query.data = para_malloc(query.size);
1387 memset(opts, 0, sizeof(*opts));
1388 slpr = query.data + sizeof(*opts);
1389 ret = lls_serialize_parse_result(lpr, cmd, &slpr, NULL);
1391 opts->mode = LS_MODE_SHORT;
1392 opts->sorting = LS_SORT_BY_PATH;
1393 if (lls_opt_given(r_l)) {
1394 const char *val = lls_string_val(0, r_l);
1395 if (!strcmp(val, "l") || !strcmp(val, "long"))
1396 opts->mode = LS_MODE_LONG;
1397 else if (!strcmp(val, "s") || !strcmp(val, "short"))
1398 opts->mode = LS_MODE_SHORT;
1399 else if (!strcmp(val, "v") || !strcmp(val, "verbose"))
1400 opts->mode = LS_MODE_VERBOSE;
1401 else if (!strcmp(val, "m") || !strcmp(val, "mbox"))
1402 opts->mode = LS_MODE_MBOX;
1403 else if (!strcmp(val, "c") || !strcmp(val, "chunk-table"))
1404 opts->mode = LS_MODE_MBOX;
1405 else if (!strcmp(val, "p") || !strcmp(val, "parser-friendly"))
1406 opts->mode = LS_MODE_PARSER;
1408 ret = -E_AFT_SYNTAX;
1412 if (lls_opt_given(r_s)) {
1413 const char *val = lls_string_val(0, r_s);
1414 if (!strcmp(val, "p") || !strcmp(val, "path"))
1415 opts->sorting = LS_SORT_BY_PATH;
1416 else if (!strcmp(val, "s") || !strcmp(val, "score"))
1417 opts->sorting = LS_SORT_BY_SCORE;
1418 else if (!strcmp(val, "l") || !strcmp(val, "lastplayed"))
1419 opts->sorting = LS_SORT_BY_LAST_PLAYED;
1420 else if (!strcmp(val, "n") || !strcmp(val, "numplayed"))
1421 opts->sorting = LS_SORT_BY_NUM_PLAYED;
1422 else if (!strcmp(val, "f") || !strcmp(val, "frquency"))
1423 opts->sorting = LS_SORT_BY_FREQUENCY;
1424 else if (!strcmp(val, "c") || !strcmp(val, "channels"))
1425 opts->sorting = LS_SORT_BY_CHANNELS;
1426 else if (!strcmp(val, "i") || !strcmp(val, "image-id"))
1427 opts->sorting = LS_SORT_BY_IMAGE_ID;
1428 else if (!strcmp(val, "y") || !strcmp(val, "lyrics-id"))
1429 opts->sorting = LS_SORT_BY_LYRICS_ID;
1430 else if (!strcmp(val, "b") || !strcmp(val, "bitrate"))
1431 opts->sorting = LS_SORT_BY_BITRATE;
1432 else if (!strcmp(val, "d") || !strcmp(val, "duration"))
1433 opts->sorting = LS_SORT_BY_DURATION;
1434 else if (!strcmp(val, "a") || !strcmp(val, "audio-format"))
1435 opts->sorting = LS_SORT_BY_AUDIO_FORMAT;
1437 ret = -E_AFT_SYNTAX;
1441 ret = send_callback_request(com_ls_callback, &query,
1442 afs_cb_result_handler, cc);
1447 EXPORT_SERVER_CMD_HANDLER(ls);
1450 * Call the given function for each file in the audio file table.
1452 * \param private_data An arbitrary data pointer, passed to \a func.
1453 * \param func The custom function to be called.
1457 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1459 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1463 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1465 int ret = aft_get_row_of_hash(hash, result);
1467 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1472 static int find_path_brother(const char *path, struct osl_row **result)
1474 int ret = aft_get_row_of_path(path, result);
1476 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1481 /** The format of the data stored by save_audio_file_data(). */
1482 enum com_add_buffer_offsets {
1483 /* afhi (if present) starts at this offset. */
1484 CAB_AFHI_OFFSET_POS = 0,
1485 /** Start of the chunk table (if present). */
1486 CAB_CHUNKS_OFFSET_POS = 4,
1487 /** Start of the (serialized) lopsub parse result. */
1489 /** Audio format id. */
1490 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1491 /** The hash of the audio file being added. */
1492 CAB_HASH_OFFSET = 13,
1493 /** Start of the path of the audio file. */
1494 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1498 * Store the given data to a single buffer. Doesn't need the audio file selector
1499 * info struct as the server knows it as well.
1501 * It's OK to call this with afhi == NULL. In this case, the audio format
1502 * handler info won't be stored in the buffer.
1504 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1505 struct afh_info *afhi, const char *slpr, size_t slpr_size,
1506 uint8_t audio_format_num, struct osl_object *obj)
1508 size_t path_len = strlen(path) + 1;
1509 size_t afhi_size = sizeof_afhi_buf(afhi);
1510 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1511 + sizeof_chunk_table(afhi) + slpr_size;
1512 char *buf = para_malloc(size);
1515 assert(size <= ~(uint32_t)0);
1516 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1517 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1518 strcpy(buf + CAB_PATH_OFFSET, path);
1519 pos = CAB_PATH_OFFSET + path_len;
1520 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1521 save_afhi(afhi, buf + pos);
1523 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1525 save_chunk_table(afhi, buf + pos);
1526 pos += sizeof_chunk_table(afhi);
1528 write_u32(buf + CAB_LPR_OFFSET, pos);
1529 memcpy(buf + pos, slpr, slpr_size);
1530 assert(pos + slpr_size == size);
1537 Overview of the add command.
1539 Input: What was passed to the callback by the command handler.
1541 HS: Hash sister. Whether an audio file with identical hash
1542 already exists in the osl database.
1544 PB: Path brother. Whether a file with the given path exists
1547 F: Force flag given. Whether add was called with -f.
1549 output: Action performed by the callback.
1551 AFHI: Whether afhi and chunk table are computed and sent.
1552 ACTION: Table modifications to be done by the callback.
1554 +----+----+---+------+---------------------------------------------------+
1555 | HS | PB | F | AFHI | ACTION
1556 +----+----+---+------+---------------------------------------------------+
1557 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1558 | | update path, keep afsi
1559 +----+----+---+------+---------------------------------------------------+
1560 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1561 | | otherwise: remove PB, HS: update path, keep afhi,
1563 +----+----+---+------+---------------------------------------------------+
1564 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1566 +----+----+---+------+---------------------------------------------------+
1567 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1568 +----+----+---+------+---------------------------------------------------+
1569 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1570 | | (force has no effect)
1571 +----+----+---+------+---------------------------------------------------+
1572 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1573 +----+----+---+------+---------------------------------------------------+
1574 | N | N | Y | Y | (new file) create new entry (force has no effect)
1575 +----+----+---+------+---------------------------------------------------+
1576 | N | N | N | Y | (new file) create new entry
1577 +----+----+---+------+---------------------------------------------------+
1581 afhi <=> force or no HS
1586 static int com_add_callback(struct afs_callback_arg *aca)
1588 char *buf = aca->query.data, *path;
1589 struct osl_row *pb, *aft_row;
1591 struct osl_object objs[NUM_AFT_COLUMNS];
1592 unsigned char *hash;
1593 char asc[2 * HASH_SIZE + 1];
1595 char afsi_buf[AFSI_SIZE];
1596 char *slpr = buf + read_u32(buf + CAB_LPR_OFFSET);
1597 struct afs_info default_afsi = {.last_played = 0};
1598 uint16_t afhi_offset, chunks_offset;
1599 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1600 const struct lls_opt_result *r_f, *r_v;
1602 ret = lls_deserialize_parse_result(slpr, cmd, &aca->lpr);
1604 r_f = SERVER_CMD_OPT_RESULT(ADD, FORCE, aca->lpr);
1605 r_v = SERVER_CMD_OPT_RESULT(ADD, VERBOSE, aca->lpr);
1607 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1608 hash_to_asc(hash, asc);
1609 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1610 objs[AFTCOL_HASH].size = HASH_SIZE;
1612 path = buf + CAB_PATH_OFFSET;
1613 objs[AFTCOL_PATH].data = path;
1614 objs[AFTCOL_PATH].size = strlen(path) + 1;
1616 PARA_INFO_LOG("request to add %s\n", path);
1617 ret = find_hash_sister(hash, &hs);
1620 ret = find_path_brother(path, &pb);
1623 if (hs && pb && hs == pb && !lls_opt_given(r_f)) {
1624 if (lls_opt_given(r_v))
1625 para_printf(&aca->pbout, "ignoring duplicate\n");
1629 if (hs && hs != pb) {
1630 struct osl_object obj;
1631 if (pb) { /* hs trumps pb, remove pb */
1632 if (lls_opt_given(r_v))
1633 para_printf(&aca->pbout, "removing %s\n", path);
1634 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1637 ret = osl(osl_del_row(audio_file_table, pb));
1642 /* file rename, update hs' path */
1643 if (lls_opt_given(r_v)) {
1644 ret = osl(osl_get_object(audio_file_table, hs,
1645 AFTCOL_PATH, &obj));
1648 para_printf(&aca->pbout, "renamed from %s\n",
1651 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1652 &objs[AFTCOL_PATH]));
1655 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1658 if (!lls_opt_given(r_f))
1661 /* no hs or force mode, child must have sent afhi */
1662 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1663 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1665 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1666 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1668 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1670 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1671 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1672 if (pb && !hs) { /* update pb's hash */
1673 char old_asc[2 * HASH_SIZE + 1];
1674 unsigned char *old_hash;
1675 ret = get_hash_of_row(pb, &old_hash);
1678 hash_to_asc(old_hash, old_asc);
1679 if (lls_opt_given(r_v))
1680 para_printf(&aca->pbout, "file change: %s -> %s\n",
1682 ret = osl(osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1683 &objs[AFTCOL_HASH]));
1687 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1688 struct osl_row *row = pb? pb : hs;
1689 /* update afhi and chunk_table */
1690 if (lls_opt_given(r_v))
1691 para_printf(&aca->pbout,
1692 "updating afhi and chunk table\n");
1693 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1694 &objs[AFTCOL_AFHI]));
1697 /* truncate the file to size zero if there is no chunk table */
1698 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1699 &objs[AFTCOL_CHUNKS]));
1702 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1705 /* new entry, use default afsi */
1706 if (lls_opt_given(r_v))
1707 para_printf(&aca->pbout, "new file\n");
1708 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1709 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1711 objs[AFTCOL_AFSI].data = &afsi_buf;
1712 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1713 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1714 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1717 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1720 para_printf(&aca->pbout, "could not add %s\n", path);
1721 lls_free_parse_result(aca->lpr, cmd);
1725 /* Used by com_add(). */
1726 struct private_add_data {
1727 /* The pointer passed to the original command handler. */
1728 struct command_context *cc;
1729 /* Contains the flags given at the command line. */
1730 struct lls_parse_result *lpr;
1731 /* Serialized lopsub parse result. */
1733 /* Number of bytes. */
1737 static int path_brother_callback(struct afs_callback_arg *aca)
1739 char *path = aca->query.data;
1740 struct osl_row *path_brother;
1741 int ret = find_path_brother(path, &path_brother);
1744 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1745 sizeof(path_brother));
1748 static int hash_sister_callback(struct afs_callback_arg *aca)
1750 unsigned char *hash = aca->query.data;
1751 struct osl_row *hash_sister;
1752 int ret = find_hash_sister(hash, &hash_sister);
1756 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1757 sizeof(hash_sister));
1760 static int get_row_pointer_from_result(struct osl_object *result,
1761 __a_unused uint8_t band, void *private)
1763 struct osl_row **row = private;
1765 if (band == SBD_OUTPUT)
1766 *row = *(struct osl_row **)(result->data);
1770 static int add_one_audio_file(const char *path, void *private_data)
1772 int ret, send_ret = 1, fd;
1773 uint8_t format_num = -1;
1774 struct private_add_data *pad = private_data;
1775 struct afh_info afhi, *afhi_ptr = NULL;
1776 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1777 struct osl_object map, obj = {.data = NULL}, query;
1778 unsigned char hash[HASH_SIZE];
1779 bool a_given = SERVER_CMD_OPT_GIVEN(ADD, ALL, pad->lpr);
1780 bool f_given = SERVER_CMD_OPT_GIVEN(ADD, FORCE, pad->lpr);
1781 bool l_given = SERVER_CMD_OPT_GIVEN(ADD, LAZY, pad->lpr);
1782 bool v_given = SERVER_CMD_OPT_GIVEN(ADD, VERBOSE, pad->lpr);
1784 ret = guess_audio_format(path);
1785 if (ret < 0 && !a_given) {
1789 query.data = (char *)path;
1790 query.size = strlen(path) + 1;
1791 ret = send_callback_request(path_brother_callback, &query,
1792 get_row_pointer_from_result, &pb);
1793 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1796 if (pb && l_given) { /* lazy is really cheap */
1798 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1799 "lazy-ignore: %s\n", path);
1802 /* We still want to add this file. Compute its hash. */
1803 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1806 hash_function(map.data, map.size, hash);
1808 /* Check whether the database contains a file with the same hash. */
1810 query.size = HASH_SIZE;
1811 ret = send_callback_request(hash_sister_callback, &query,
1812 get_row_pointer_from_result, &hs);
1815 /* Return success if we already know this file. */
1817 if (pb && hs && hs == pb && !f_given) {
1819 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1820 "%s exists, not forcing update\n", path);
1824 * We won't recalculate the audio format info and the chunk table if
1825 * there is a hash sister and FORCE was not given.
1827 if (!hs || f_given) {
1828 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1834 munmap(map.data, map.size);
1837 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1838 "adding %s\n", path);
1842 save_add_callback_buffer(hash, path, afhi_ptr, pad->slpr,
1843 pad->slpr_size, format_num, &obj);
1844 /* Ask afs to consider this entry for adding. */
1845 ret = send_callback_request(com_add_callback, &obj,
1846 afs_cb_result_handler, pad->cc);
1851 munmap(map.data, map.size);
1853 if (ret < 0 && send_ret >= 0)
1854 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1855 "failed to add %s (%s)\n", path, para_strerror(-ret));
1857 clear_afhi(afhi_ptr);
1858 /* Stop adding files only on send errors. */
1862 static int com_add(struct command_context *cc, struct lls_parse_result *lpr)
1865 struct private_add_data pad = {.cc = cc, .lpr = lpr};
1866 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1867 unsigned num_inputs;
1870 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
1872 send_errctx(cc, errctx);
1875 ret = lls_serialize_parse_result(lpr, cmd, &pad.slpr, &pad.slpr_size);
1877 num_inputs = lls_num_inputs(lpr);
1878 for (i = 0; i < num_inputs; i++) {
1880 ret = verify_path(lls_input(i, lpr), &path);
1882 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1883 lls_input(i, lpr), para_strerror(-ret));
1888 if (ret == 1) /* directory */
1889 ret = for_each_file_in_dir(path, add_one_audio_file,
1891 else /* regular file */
1892 ret = add_one_audio_file(path, &pad);
1894 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1895 para_strerror(-ret));
1906 EXPORT_SERVER_CMD_HANDLER(add);
1908 /** Flags used by the touch command. */
1910 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1911 TOUCH_FLAG_FNM_PATHNAME = 1,
1912 /** Activates verbose mode. */
1913 TOUCH_FLAG_VERBOSE = 2
1916 static int touch_audio_file(__a_unused struct osl_table *table,
1917 struct osl_row *row, const char *name, void *data)
1919 struct afs_callback_arg *aca = data;
1920 bool v_given = SERVER_CMD_OPT_GIVEN(TOUCH, VERBOSE, aca->lpr);
1921 const struct lls_opt_result *r_n, *r_l, *r_i, *r_y, *r_a;
1923 struct osl_object obj;
1924 struct afs_info old_afsi, new_afsi;
1926 struct afsi_change_event_data aced;
1928 r_n = SERVER_CMD_OPT_RESULT(TOUCH, NUMPLAYED, aca->lpr);
1929 r_l = SERVER_CMD_OPT_RESULT(TOUCH, LASTPLAYED, aca->lpr);
1930 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1931 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
1932 r_a = SERVER_CMD_OPT_RESULT(TOUCH, AMP, aca->lpr);
1933 no_options = !lls_opt_given(r_n) && !lls_opt_given(r_l) && !lls_opt_given(r_i)
1934 && !lls_opt_given(r_y) && !lls_opt_given(r_a);
1936 ret = get_afsi_object_of_row(row, &obj);
1938 para_printf(&aca->pbout, "cannot touch %s\n", name);
1941 ret = load_afsi(&old_afsi, &obj);
1943 para_printf(&aca->pbout, "cannot touch %s\n", name);
1946 new_afsi = old_afsi;
1948 new_afsi.num_played++;
1949 new_afsi.last_played = time(NULL);
1951 para_printf(&aca->pbout, "%s: num_played = %u, "
1952 "last_played = now()\n", name,
1953 new_afsi.num_played);
1955 if (lls_opt_given(r_l))
1956 new_afsi.last_played = lls_uint64_val(0, r_l);
1957 if (lls_opt_given(r_n))
1958 new_afsi.num_played = lls_uint32_val(0, r_n);
1959 if (lls_opt_given(r_i))
1960 new_afsi.image_id = lls_uint32_val(0, r_i);
1961 if (lls_opt_given(r_y))
1962 new_afsi.lyrics_id = lls_uint32_val(0, r_y);
1963 if (lls_opt_given(r_a))
1964 new_afsi.amp = lls_uint32_val(0, r_a);
1966 para_printf(&aca->pbout, "touching %s\n", name);
1968 save_afsi(&new_afsi, &obj); /* in-place update */
1970 aced.old_afsi = &old_afsi;
1971 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
1974 static int com_touch_callback(struct afs_callback_arg *aca)
1976 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
1978 const struct lls_opt_result *r_i, *r_y;
1980 struct pattern_match_data pmd = {
1981 .table = audio_file_table,
1982 .loop_col_num = AFTCOL_HASH,
1983 .match_col_num = AFTCOL_PATH,
1985 .action = touch_audio_file
1988 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
1992 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1993 if (lls_opt_given(r_i)) {
1994 uint32_t id = lls_uint32_val(0, r_i);
1995 ret = img_get_name_by_id(id, NULL);
1997 para_printf(&aca->pbout, "invalid image ID: %u\n", id);
2001 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
2002 if (lls_opt_given(r_y)) {
2003 uint32_t id = lls_uint32_val(0, r_y);
2004 ret = lyr_get_name_by_id(id, NULL);
2006 para_printf(&aca->pbout, "invalid lyrics ID: %u\n", id);
2010 p_given = SERVER_CMD_OPT_GIVEN(TOUCH, PATHNAME_MATCH, aca->lpr);
2012 pmd.fnmatch_flags |= FNM_PATHNAME;
2013 ret = for_each_matching_row(&pmd);
2014 if (ret >= 0 && pmd.num_matches == 0)
2016 lls_free_parse_result(aca->lpr, cmd);
2020 static int com_touch(struct command_context *cc, struct lls_parse_result *lpr)
2022 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
2026 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2028 send_errctx(cc, errctx);
2031 return send_lls_callback_request(com_touch_callback, cmd, lpr, cc);
2033 EXPORT_SERVER_CMD_HANDLER(touch);
2035 static int remove_audio_file(__a_unused struct osl_table *table,
2036 struct osl_row *row, const char *name, void *data)
2038 struct afs_callback_arg *aca = data;
2039 bool v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2043 para_printf(&aca->pbout, "removing %s\n", name);
2044 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2047 ret = osl(osl_del_row(audio_file_table, row));
2049 para_printf(&aca->pbout, "cannot remove %s\n", name);
2053 static int com_rm_callback(struct afs_callback_arg *aca)
2055 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2057 struct pattern_match_data pmd = {
2058 .table = audio_file_table,
2059 .loop_col_num = AFTCOL_HASH,
2060 .match_col_num = AFTCOL_PATH,
2062 .action = remove_audio_file
2064 bool v_given, p_given, f_given;
2066 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2069 v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2070 p_given = SERVER_CMD_OPT_GIVEN(RM, PATHNAME_MATCH, aca->lpr);
2071 f_given = SERVER_CMD_OPT_GIVEN(RM, FORCE, aca->lpr);
2074 pmd.fnmatch_flags |= FNM_PATHNAME;
2075 ret = for_each_matching_row(&pmd);
2078 if (pmd.num_matches == 0) {
2082 para_printf(&aca->pbout, "removed %u file(s)\n",
2085 lls_free_parse_result(aca->lpr, cmd);
2089 /* TODO options: -r (recursive) */
2090 static int com_rm(struct command_context *cc, struct lls_parse_result *lpr)
2092 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2096 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2098 send_errctx(cc, errctx);
2101 return send_lls_callback_request(com_rm_callback, cmd, lpr, cc);
2103 EXPORT_SERVER_CMD_HANDLER(rm);
2105 /** Data passed to the action handler of com_cpsi(). */
2106 struct cpsi_action_data {
2107 /** Values are copied from here. */
2108 struct afs_info source_afsi;
2109 /** What was passed to com_cpsi_callback(). */
2110 struct afs_callback_arg *aca;
2114 static int copy_selector_info(__a_unused struct osl_table *table,
2115 struct osl_row *row, const char *name, void *data)
2117 struct cpsi_action_data *cad = data;
2118 struct osl_object target_afsi_obj;
2120 struct afs_info old_afsi, target_afsi;
2121 struct afsi_change_event_data aced;
2122 bool a_given, y_given, i_given, l_given, n_given, v_given;
2124 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, cad->aca->lpr);
2125 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, cad->aca->lpr);
2126 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, cad->aca->lpr);
2127 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, cad->aca->lpr);
2128 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, cad->aca->lpr);
2129 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, cad->aca->lpr);
2131 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2134 ret = load_afsi(&target_afsi, &target_afsi_obj);
2137 old_afsi = target_afsi;
2138 if (cad->copy_all || y_given)
2139 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2140 if (cad->copy_all || i_given)
2141 target_afsi.image_id = cad->source_afsi.image_id;
2142 if (cad->copy_all || l_given)
2143 target_afsi.last_played = cad->source_afsi.last_played;
2144 if (cad->copy_all || n_given)
2145 target_afsi.num_played = cad->source_afsi.num_played;
2146 if (cad->copy_all || a_given)
2147 target_afsi.attributes = cad->source_afsi.attributes;
2148 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2150 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2152 aced.old_afsi = &old_afsi;
2153 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2156 static int com_cpsi_callback(struct afs_callback_arg *aca)
2158 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2159 bool a_given, y_given, i_given, l_given, n_given, v_given;
2160 struct cpsi_action_data cad = {.aca = aca};
2162 struct pattern_match_data pmd = {
2163 .table = audio_file_table,
2164 .loop_col_num = AFTCOL_HASH,
2165 .match_col_num = AFTCOL_PATH,
2166 .input_skip = 1, /* skip first argument (source file) */
2168 .action = copy_selector_info
2171 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2175 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, aca->lpr);
2176 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, aca->lpr);
2177 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, aca->lpr);
2178 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, aca->lpr);
2179 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, aca->lpr);
2180 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, aca->lpr);
2181 cad.copy_all = !a_given && !y_given && !i_given && !l_given && !n_given;
2183 ret = get_afsi_of_path(lls_input(0, aca->lpr), &cad.source_afsi);
2186 ret = for_each_matching_row(&pmd);
2189 if (pmd.num_matches > 0) {
2191 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2196 lls_free_parse_result(aca->lpr, cmd);
2200 static int com_cpsi(struct command_context *cc, struct lls_parse_result *lpr)
2202 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2204 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2206 send_errctx(cc, errctx);
2209 return send_lls_callback_request(com_cpsi_callback, cmd, lpr, cc);
2211 EXPORT_SERVER_CMD_HANDLER(cpsi);
2213 struct change_atts_data {
2214 uint64_t add_mask, del_mask;
2215 struct afs_callback_arg *aca;
2218 static int change_atts(__a_unused struct osl_table *table,
2219 struct osl_row *row, __a_unused const char *name, void *data)
2222 struct osl_object obj;
2223 struct afs_info old_afsi, new_afsi;
2224 struct afsi_change_event_data aced = {
2226 .old_afsi = &old_afsi
2228 struct change_atts_data *cad = data;
2230 ret = get_afsi_object_of_row(row, &obj);
2233 ret = load_afsi(&old_afsi, &obj);
2236 new_afsi = old_afsi;
2237 new_afsi.attributes |= cad->add_mask;
2238 new_afsi.attributes &= ~cad->del_mask;
2239 save_afsi(&new_afsi, &obj); /* in-place update */
2240 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2243 static int com_setatt_callback(struct afs_callback_arg *aca)
2245 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2247 struct change_atts_data cad = {.aca = aca};
2248 struct pattern_match_data pmd = {
2249 .table = audio_file_table,
2250 .loop_col_num = AFTCOL_HASH,
2251 .match_col_num = AFTCOL_PATH,
2252 .pm_flags = PM_SKIP_EMPTY_NAME,
2254 .action = change_atts
2256 unsigned num_inputs;
2258 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2262 num_inputs = lls_num_inputs(aca->lpr);
2263 for (i = 0; i < num_inputs; i++) {
2264 unsigned char bitnum;
2266 const char *arg = lls_input(i, aca->lpr);
2268 size_t len = strlen(arg);
2270 ret = -E_ATTR_SYNTAX;
2274 if (c != '+' && c != '-') {
2275 if (cad.add_mask == 0 && cad.del_mask == 0)
2276 goto out; /* no attribute modifier given */
2279 p = para_malloc(len);
2280 memcpy(p, arg, len - 1);
2282 ret = get_attribute_bitnum_by_name(p, &bitnum);
2285 para_printf(&aca->pbout, "invalid argument: %s\n", arg);
2289 cad.add_mask |= (one << bitnum);
2291 cad.del_mask |= (one << bitnum);
2293 /* no pattern given */
2294 ret = -E_ATTR_SYNTAX;
2298 ret = for_each_matching_row(&pmd);
2299 if (ret >= 0 && pmd.num_matches == 0)
2302 lls_free_parse_result(aca->lpr, cmd);
2306 static int com_setatt(struct command_context *cc, struct lls_parse_result *lpr)
2308 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2310 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2313 send_errctx(cc, errctx);
2316 return send_lls_callback_request(com_setatt_callback, cmd, lpr, cc);
2318 EXPORT_SERVER_CMD_HANDLER(setatt);
2320 static int afs_stat_callback(struct afs_callback_arg *aca)
2322 int *parser_friendly = aca->query.data;
2323 char *buf = *parser_friendly?
2324 parser_friendly_status_items : status_items;
2328 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2332 * Get the current afs status items from the afs process and send it.
2334 * \param cc The command context, used e.g. for data encryption.
2335 * \param parser_friendly Whether parser-friendly output format should be used.
2337 * As the contents of the afs status items change in time and the command
2338 * handler only has a COW version created at fork time, it can not send
2339 * up-to-date afs status items directly. Therefore the usual callback mechanism
2340 * is used to pass the status items from the afs process to the command handler
2341 * via a shared memory area and a pipe.
2343 * \return The return value of the underlying call to \ref send_callback_request().
2345 int send_afs_status(struct command_context *cc, int parser_friendly)
2347 struct osl_object query = {.data = &parser_friendly,
2348 .size = sizeof(parser_friendly)};
2350 return send_callback_request(afs_stat_callback, &query,
2351 afs_cb_result_handler, cc);
2354 /* returns success on non-fatal errors to keep the loop going */
2355 static int check_audio_file(struct osl_row *row, void *data)
2358 struct para_buffer *pb = data;
2359 struct stat statbuf;
2360 int ret = get_audio_file_path_of_row(row, &path);
2361 struct afs_info afsi;
2365 para_printf(pb, "%s\n", para_strerror(-ret));
2368 if (stat(path, &statbuf) < 0)
2369 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2370 else if (!S_ISREG(statbuf.st_mode))
2371 para_printf(pb, "%s: not a regular file\n", path);
2372 ret = get_afsi_of_row(row, &afsi);
2374 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2377 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2379 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2380 para_strerror(-ret));
2381 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2383 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2384 para_strerror(-ret));
2389 * Check the audio file table for inconsistencies.
2391 * \param aca Only ->pbout is used for diagnostics.
2393 * \return Standard. Inconsistencies are reported but not regarded as an error.
2395 int aft_check_callback(struct afs_callback_arg *aca)
2397 para_printf(&aca->pbout, "checking audio file table...\n");
2398 return audio_file_loop(&aca->pbout, check_audio_file);
2401 struct aft_check_atts_data {
2403 struct para_buffer *pb;
2406 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2408 struct aft_check_atts_data *acad = data;
2410 struct afs_info afsi;
2414 ret = get_afsi_of_row(row, &afsi);
2416 para_printf(acad->pb, "cannot get afsi\n");
2419 bad_bits = afsi.attributes & ~acad->att_mask;
2420 if (bad_bits == 0) /* OK */
2422 ret = get_audio_file_path_of_row(row, &path);
2424 para_printf(acad->pb, "cannot get path\n");
2427 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2429 /* return success to keep looping */
2434 * Iterate over all audio files and check the attribute bit mask.
2436 * \param att_mask The mask of all valid attributes.
2437 * \param pb Used for reporting inconsistencies.
2439 * This reads the attribute bit mask of each audio file from the afs info
2440 * structure stored in the audio file table and verifies that all set bits are
2441 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2442 * attribute table. Audio files for which this is not the case are reported via
2445 * \return Standard. Inconsistencies are not regarded as errors.
2447 * \sa \ref attribute_check_callback().
2449 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2451 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2453 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2454 return audio_file_loop(&acad, check_atts_of_audio_file);
2458 * Close the audio file table.
2460 * \param flags Usual flags that are passed to osl_close_table().
2462 * \sa \ref osl_close_table().
2464 static void aft_close(void)
2466 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2467 audio_file_table = NULL;
2471 * Open the audio file table.
2473 * \param dir The database directory.
2477 * \sa \ref osl_open_table().
2479 static int aft_open(const char *dir)
2483 audio_file_table_desc.dir = dir;
2484 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2487 osl_get_num_rows(audio_file_table, &num);
2488 PARA_INFO_LOG("audio file table contains %u files\n", num);
2491 PARA_NOTICE_LOG("failed to open audio file table\n");
2492 audio_file_table = NULL;
2493 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2498 static int aft_create(const char *dir)
2500 audio_file_table_desc.dir = dir;
2501 return osl(osl_create_table(&audio_file_table_desc));
2504 static int clear_attribute(struct osl_row *row, void *data)
2506 struct rmatt_event_data *red = data;
2507 struct afs_info afsi;
2508 struct osl_object obj;
2509 int ret = get_afsi_object_of_row(row, &obj);
2510 uint64_t mask = ~(1ULL << red->bitnum);
2514 ret = load_afsi(&afsi, &obj);
2517 afsi.attributes &= mask;
2518 save_afsi(&afsi, &obj);
2522 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2528 case ATTRIBUTE_REMOVE: {
2529 const struct rmatt_event_data *red = data;
2530 para_printf(pb, "clearing attribute %s (bit %u) from all "
2531 "entries in the audio file table\n", red->name,
2533 return audio_file_loop(data, clear_attribute);
2534 } case AFSI_CHANGE: {
2535 struct afsi_change_event_data *aced = data;
2536 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2537 if (aced->aft_row != current_aft_row)
2539 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2542 status_item_ls_data.afsi.last_played = old_last_played;
2543 make_status_items();
2545 } case AFHI_CHANGE: {
2546 if (data != current_aft_row)
2548 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2551 make_status_items();
2559 * Initialize the audio file table.
2561 * \param t Pointer to the structure to be initialized.
2563 void aft_init(struct afs_table *t)
2566 t->close = aft_close;
2567 t->create = aft_create;
2568 t->event_handler = aft_event_handler;