2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file afs.c Paraslash's audio file selector. */
11 #include "server.cmdline.h"
16 #include <dirent.h> /* readdir() */
28 /** The osl tables used by afs. \sa blob.c. */
30 /** Contains audio file information. See aft.c. */
32 /** The table for the paraslash attributes. See attribute.c. */
35 * Paraslash's scoring system is based on Gaussian normal
36 * distributions, and the relevant data is stored in the rbtrees of an
37 * osl table containing only volatile columns. See score.c for
42 * A standard blob table containing the mood definitions. For details
46 /** A blob table containing lyrics on a per-song basis. */
48 /** Another blob table for images (for example album cover art). */
50 /** Yet another blob table for storing standard playlists. */
52 /** How many tables are in use? */
56 static struct table_info afs_tables
[NUM_AFS_TABLES
];
59 /** The file descriptor for the local socket. */
62 * Value sent by the command handlers to identify themselves as
63 * children of the running para_server.
66 /** The associated task structure. */
71 * A random number used to "authenticate" the connection.
73 * para_server picks this number by random before forking the afs process. The
74 * command handlers write this number together with the id of the shared memory
75 * area containing the query. This way, a malicious local user has to know this
76 * number to be able to cause the afs process to crash by sending fake queries.
78 extern uint32_t afs_socket_cookie
;
81 * Struct to let command handlers execute a callback in afs context.
83 * Commands that need to change the state of afs can't change the relevant data
84 * structures directly because commands are executed in a child process, i.e.
85 * they get their own virtual address space.
87 * This structure is used by \p send_callback_request() (executed from handler
88 * context) in order to let the afs process call the specified function. An
89 * instance of that structure is written to a shared memory area together with
90 * the arguments to the callback function. The identifier of the shared memory
91 * area is written to the command socket.
93 * The afs process accepts connections on the command socket and reads the
94 * shared memory id, attaches the corresponing area, calls the given handler to
95 * perform the desired action and to optionally compute a result.
97 * The result and a \p callback_result structure is then written to another
98 * shared memory area. The identifier for that area is written to the handler's
99 * command socket, so that the handler process can read the id, attach the
100 * shared memory area and use the result.
102 * \sa struct callback_result.
104 struct callback_query
{
105 /** The function to be called. */
106 callback_function
*handler
;
107 /** The number of bytes of the query */
112 * Structure embedded in the result of a callback.
114 * If the callback produced a result, an instance of that structure is embeeded
115 * into the shared memory area holding the result, mainly to let the command
116 * handler know the size of the result.
118 * \sa struct callback_query.
120 struct callback_result
{
121 /** The number of bytes of the result. */
126 * Ask the afs process to call a given function.
128 * \param f The function to be called.
129 * \param query Pointer to arbitrary data for the callback.
130 * \param result Callback result will be stored here.
132 * This function creates a shared memory area, copies the buffer pointed to by
133 * \a buf to that area and notifies the afs process that \a f should be
136 * \return Negative, on errors, the return value of the callback function
139 * \sa send_option_arg_callback_request(), send_standard_callback_request().
141 int send_callback_request(callback_function
*f
, struct osl_object
*query
,
142 struct osl_object
*result
)
144 struct callback_query
*cq
;
145 struct callback_result
*cr
;
146 int ret
, fd
= -1, query_shmid
, result_shmid
;
147 void *query_shm
, *result_shm
;
148 char buf
[sizeof(afs_socket_cookie
) + sizeof(int)];
149 struct sockaddr_un unix_addr
;
150 size_t query_shm_size
= sizeof(*cq
);
153 query_shm_size
+= query
->size
;
154 ret
= shm_new(query_shm_size
);
158 ret
= shm_attach(query_shmid
, ATTACH_RW
, &query_shm
);
163 cq
->query_size
= query_shm_size
- sizeof(*cq
);
166 memcpy(query_shm
+ sizeof(*cq
), query
->data
, query
->size
);
167 ret
= shm_detach(query_shm
);
171 *(uint32_t *) buf
= afs_socket_cookie
;
172 *(int *) (buf
+ sizeof(afs_socket_cookie
)) = query_shmid
;
174 ret
= get_stream_socket(PF_UNIX
);
178 ret
= init_unix_addr(&unix_addr
, conf
.afs_socket_arg
);
181 ret
= PARA_CONNECT(fd
, &unix_addr
);
184 ret
= send_bin_buffer(fd
, buf
, sizeof(buf
));
187 ret
= recv_bin_buffer(fd
, buf
, sizeof(buf
));
190 if (ret
!= sizeof(int)) {
198 ret
= shm_attach(result_shmid
, ATTACH_RO
, &result_shm
);
202 result
->size
= cr
->result_size
;
203 result
->data
= para_malloc(result
->size
);
204 memcpy(result
->data
, result_shm
+ sizeof(*cr
), result
->size
);
205 ret
= shm_detach(result_shm
);
207 PARA_ERROR_LOG("can not detach result\n");
209 PARA_ERROR_LOG("attach result failed: %d\n", ret
);
210 if (shm_destroy(result_shmid
) < 0)
211 PARA_ERROR_LOG("destroy result failed\n");
214 if (shm_destroy(query_shmid
) < 0)
215 PARA_ERROR_LOG("%s\n", "shm destroy error");
218 // PARA_DEBUG_LOG("callback_ret: %d\n", ret);
223 * Send a callback request passing an options structure and an argument vector.
225 * \param options pointer to an arbitrary data structure.
226 * \param argc Argument count.
227 * \param argv Standard argument vector.
228 * \param f The callback function.
229 * \param result The result of the query is stored here.
231 * Some commands have a couple of options that are parsed in child context for
232 * syntactic correctness and are stored in a special options structure for that
233 * command. This function allows to pass such a structure together with a list
234 * of further arguments (often a list of audio files) to the parent process.
236 * \sa send_standard_callback_request(), send_callback_request().
238 int send_option_arg_callback_request(struct osl_object
*options
,
239 int argc
, char * const * const argv
, callback_function
*f
,
240 struct osl_object
*result
)
244 struct osl_object query
= {.size
= options
? options
->size
: 0};
246 for (i
= 0; i
< argc
; i
++)
247 query
.size
+= strlen(argv
[i
]) + 1;
248 query
.data
= para_malloc(query
.size
);
251 memcpy(query
.data
, options
->data
, options
->size
);
254 for (i
= 0; i
< argc
; i
++) {
255 strcpy(p
, argv
[i
]); /* OK */
256 p
+= strlen(argv
[i
]) + 1;
258 ret
= send_callback_request(f
, &query
, result
);
264 * Send a callback request with an argument vector only.
266 * \param argc The same meaning as in send_option_arg_callback_request().
267 * \param argv The same meaning as in send_option_arg_callback_request().
268 * \param f The same meaning as in send_option_arg_callback_request().
269 * \param result The same meaning as in send_option_arg_callback_request().
271 * This is similar to send_option_arg_callback_request(), but no options buffer
272 * is passed to the parent process.
274 * \return The return value of the underlying call to
275 * send_option_arg_callback_request().
277 int send_standard_callback_request(int argc
, char * const * const argv
,
278 callback_function
*f
, struct osl_object
*result
)
280 return send_option_arg_callback_request(NULL
, argc
, argv
, f
, result
);
283 static int action_if_pattern_matches(struct osl_row
*row
, void *data
)
285 struct pattern_match_data
*pmd
= data
;
286 struct osl_object name_obj
;
287 const char *p
, *name
;
288 int ret
= osl_get_object(pmd
->table
, row
, pmd
->match_col_num
, &name_obj
);
289 const char *pattern_txt
= (const char *)pmd
->patterns
.data
;
293 name
= (char *)name_obj
.data
;
294 if ((!name
|| !*name
) && (pmd
->pm_flags
& PM_SKIP_EMPTY_NAME
))
296 if (!pmd
->patterns
.size
&& (pmd
->pm_flags
& PM_NO_PATTERN_MATCHES_EVERYTHING
))
297 return pmd
->action(pmd
->table
, row
, name
, pmd
->data
);
298 for (p
= pattern_txt
; p
< pattern_txt
+ pmd
->patterns
.size
;
299 p
+= strlen(p
) + 1) {
300 ret
= fnmatch(p
, name
, pmd
->fnmatch_flags
);
301 if (ret
== FNM_NOMATCH
)
305 return pmd
->action(pmd
->table
, row
, name
, pmd
->data
);
311 * Execute the given function for each matching row.
313 * \param pmd Describes what to match and how.
315 * \return The return value of the underlying call to osl_rbtree_loop()
316 * or osl_rbtree_loop_reverse().
318 int for_each_matching_row(struct pattern_match_data
*pmd
)
320 if (pmd
->pm_flags
& PM_REVERSE_LOOP
)
321 return osl_rbtree_loop_reverse(pmd
->table
, pmd
->loop_col_num
, pmd
,
322 action_if_pattern_matches
);
323 return osl_rbtree_loop(pmd
->table
, pmd
->loop_col_num
, pmd
,
324 action_if_pattern_matches
);
328 * Compare two osl objects of string type.
330 * \param obj1 Pointer to the first object.
331 * \param obj2 Pointer to the second object.
333 * In any case, only \p MIN(obj1->size, obj2->size) characters of each string
334 * are taken into account.
336 * \return It returns an integer less than, equal to, or greater than zero if
337 * \a obj1 is found, respectively, to be less than, to match, or be greater than
340 * \sa strcmp(3), strncmp(3), osl_compare_func.
342 int string_compare(const struct osl_object
*obj1
, const struct osl_object
*obj2
)
344 const char *str1
= (const char *)obj1
->data
;
345 const char *str2
= (const char *)obj2
->data
;
346 return strncmp(str1
, str2
, PARA_MIN(obj1
->size
, obj2
->size
));
350 * write input from fd to dynamically allocated buffer,
351 * but maximal max_size byte.
353 static int fd2buf(int fd
, unsigned max_size
, struct osl_object
*obj
)
355 const size_t chunk_size
= 1024;
356 size_t size
= 2048, received
= 0;
358 char *buf
= para_malloc(size
);
361 ret
= recv_bin_buffer(fd
, buf
+ received
, chunk_size
);
365 if (received
+ chunk_size
>= size
) {
367 ret
= -E_INPUT_TOO_LARGE
;
370 buf
= para_realloc(buf
, size
);
374 obj
->size
= received
;
381 * Read data from a file descriptor, and send it to the afs process.
383 * \param fd File descriptor to read data from.
384 * \param arg_obj Pointer to the arguments to \a f.
385 * \param f The callback function.
386 * \param max_len Don't read more than that many bytes from stdin.
387 * \param result The result of the query is stored here.
389 * This function is used by commands that wish to let para_server store
390 * arbitrary data specified by the user (for instance the add_blob family of
391 * commands). First, at most \a max_len bytes are read from \a fd, the result
392 * is concatenated with the buffer given by \a arg_obj, and the combined buffer
393 * is made available to the parent process via shared memory.
395 * \return Negative on errors, the return value of the underlying call to
396 * send_callback_request() otherwise.
398 int stdin_command(int fd
, struct osl_object
*arg_obj
, callback_function
*f
,
399 unsigned max_len
, struct osl_object
*result
)
401 struct osl_object query
, stdin_obj
;
404 ret
= send_buffer(fd
, AWAITING_DATA_MSG
);
407 ret
= fd2buf(fd
, max_len
, &stdin_obj
);
410 query
.size
= arg_obj
->size
+ stdin_obj
.size
;
411 query
.data
= para_malloc(query
.size
);
412 memcpy(query
.data
, arg_obj
->data
, arg_obj
->size
);
413 memcpy((char *)query
.data
+ arg_obj
->size
, stdin_obj
.data
, stdin_obj
.size
);
414 free(stdin_obj
.data
);
415 ret
= send_callback_request(f
, &query
, result
);
421 * Open the audio file with highest score.
423 * \param afd Audio file data is returned here.
425 * This stores all information for streaming the "best" audio file
426 * in the \a afd structure.
428 * \return Positive on success, negative on errors.
430 * \sa close_audio_file(), open_and_update_audio_file().
432 int open_next_audio_file(struct audio_file_data
*afd
)
434 struct osl_row
*aft_row
;
437 ret
= score_get_best(&aft_row
, &afd
->score
);
440 ret
= open_and_update_audio_file(aft_row
, afd
);
447 * Free all resources which were allocated by open_next_audio_file().
449 * \param afd The structure previously filled in by open_next_audio_file().
451 * \return The return value of the underlying call to para_munmap().
453 * \sa open_next_audio_file().
455 int close_audio_file(struct audio_file_data
*afd
)
457 free(afd
->afhi
.chunk_table
);
458 return para_munmap(afd
->map
.data
, afd
->map
.size
);
461 static enum play_mode
init_admissible_files(void)
465 if (conf
.mood_given
) {
466 ret
= change_current_mood(conf
.mood_arg
);
468 if (conf
.playlist_given
)
469 PARA_WARNING_LOG("ignoring playlist %s\n",
471 return PLAY_MODE_MOOD
;
474 if (conf
.playlist_given
) {
475 ret
= playlist_open(conf
.playlist_arg
);
477 return PLAY_MODE_PLAYLIST
;
479 ret
= change_current_mood(NULL
); /* open first available mood */
481 return PLAY_MODE_MOOD
;
482 change_current_mood(""); /* open dummy mood, always successful */
483 return PLAY_MODE_MOOD
;
486 static int setup_command_socket_or_die(void)
489 char *socket_name
= conf
.afs_socket_arg
;
490 struct sockaddr_un unix_addr
;
493 ret
= create_local_socket(socket_name
, &unix_addr
,
494 S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
| S_IWOTH
);
496 PARA_EMERG_LOG("%s: %s\n", PARA_STRERROR(-ret
), socket_name
);
499 if (listen(ret
, 5) < 0) {
500 PARA_EMERG_LOG("%s", "can not listen on socket\n");
503 PARA_INFO_LOG("listening on command socket %s (fd %d)\n", socket_name
,
508 static void close_afs_tables(enum osl_close_flags flags
)
510 PARA_NOTICE_LOG("closing afs_tables\n");
511 score_shutdown(flags
);
512 attribute_shutdown(flags
);
513 close_current_mood();
515 moods_shutdown(flags
);
516 playlists_shutdown(flags
);
517 lyrics_shutdown(flags
);
518 images_shutdown(flags
);
522 static char *database_dir
;
524 static int make_database_dir(void)
529 if (conf
.afs_database_dir_given
)
530 database_dir
= para_strdup(conf
.afs_database_dir_arg
);
532 char *home
= para_homedir();
533 database_dir
= make_message(
534 "%s/.paraslash/afs_database", home
);
538 PARA_INFO_LOG("afs_database dir %s\n", database_dir
);
539 ret
= para_mkdir(database_dir
, 0777);
540 if (ret
>= 0 || ret
== -E_EXIST
)
548 static int open_afs_tables(void)
550 int ret
= make_database_dir();
554 ret
= attribute_init(&afs_tables
[TBLNUM_ATTRIBUTES
], database_dir
);
557 ret
= moods_init(&afs_tables
[TBLNUM_MOODS
], database_dir
);
559 goto moods_init_error
;
560 ret
= playlists_init(&afs_tables
[TBLNUM_PLAYLIST
], database_dir
);
562 goto playlists_init_error
;
563 ret
= lyrics_init(&afs_tables
[TBLNUM_LYRICS
], database_dir
);
565 goto lyrics_init_error
;
566 ret
= images_init(&afs_tables
[TBLNUM_IMAGES
], database_dir
);
568 goto images_init_error
;
569 ret
= score_init(&afs_tables
[TBLNUM_SCORES
], database_dir
);
571 goto score_init_error
;
572 ret
= aft_init(&afs_tables
[TBLNUM_AUDIO_FILES
], database_dir
);
578 score_shutdown(OSL_MARK_CLEAN
);
580 images_shutdown(OSL_MARK_CLEAN
);
582 lyrics_shutdown(OSL_MARK_CLEAN
);
584 playlists_shutdown(OSL_MARK_CLEAN
);
585 playlists_init_error
:
586 moods_shutdown(OSL_MARK_CLEAN
);
588 attribute_shutdown(OSL_MARK_CLEAN
);
592 static int server_socket
;
593 static struct command_task command_task_struct
;
594 static struct signal_task signal_task_struct
;
596 static void unregister_tasks(void)
598 unregister_task(&command_task_struct
.task
);
599 unregister_task(&signal_task_struct
.task
);
602 static void signal_pre_select(struct sched
*s
, struct task
*t
)
604 struct signal_task
*st
= t
->private_data
;
606 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
609 static void signal_post_select(struct sched
*s
, struct task
*t
)
611 struct signal_task
*st
= t
->private_data
;
613 if (!FD_ISSET(st
->fd
, &s
->rfds
))
615 st
->signum
= para_next_signal();
617 if (st
->signum
== SIGUSR1
)
618 return; /* ignore SIGUSR1 */
619 if (st
->signum
== SIGHUP
) {
620 close_afs_tables(OSL_MARK_CLEAN
);
621 t
->ret
= open_afs_tables();
624 PARA_NOTICE_LOG("caught signal %d\n", st
->signum
);
625 t
->ret
= -E_SIGNAL_CAUGHT
;
629 static void register_signal_task(void)
631 struct signal_task
*st
= &signal_task_struct
;
632 st
->fd
= para_signal_init();
633 PARA_INFO_LOG("signal pipe: fd %d\n", st
->fd
);
634 para_install_sighandler(SIGINT
);
635 para_install_sighandler(SIGTERM
);
636 para_install_sighandler(SIGPIPE
);
637 para_install_sighandler(SIGHUP
);
639 st
->task
.pre_select
= signal_pre_select
;
640 st
->task
.post_select
= signal_post_select
;
641 st
->task
.private_data
= st
;
642 sprintf(st
->task
.status
, "signal task");
643 register_task(&st
->task
);
646 static struct list_head afs_client_list
;
649 struct list_head node
;
651 struct timeval connect_time
;
654 static void command_pre_select(struct sched
*s
, struct task
*t
)
656 struct command_task
*ct
= t
->private_data
;
657 struct afs_client
*client
;
659 para_fd_set(ct
->fd
, &s
->rfds
, &s
->max_fileno
);
660 list_for_each_entry(client
, &afs_client_list
, node
)
661 para_fd_set(client
->fd
, &s
->rfds
, &s
->max_fileno
);
666 * On errors, negative value is written to fd.
667 * On success: If query produced a result, the result_shmid is written to fd.
668 * Otherwise, zero is written.
670 static int call_callback(int fd
, int query_shmid
)
672 void *query_shm
, *result_shm
;
673 struct callback_query
*cq
;
674 struct callback_result
*cr
;
675 struct osl_object query
, result
= {.data
= NULL
};
676 int result_shmid
= -1, ret
, ret2
;
678 ret
= shm_attach(query_shmid
, ATTACH_RW
, &query_shm
);
682 query
.data
= (char *)query_shm
+ sizeof(*cq
);
683 query
.size
= cq
->query_size
;
684 ret
= cq
->handler(&query
, &result
);
685 ret2
= shm_detach(query_shm
);
686 if (ret2
< 0 && ret
>= 0)
691 if (!result
.data
|| !result
.size
)
693 ret
= shm_new(result
.size
+ sizeof(struct callback_result
));
697 ret
= shm_attach(result_shmid
, ATTACH_RW
, &result_shm
);
701 cr
->result_size
= result
.size
;
702 memcpy(result_shm
+ sizeof(*cr
), result
.data
, result
.size
);
703 ret
= shm_detach(result_shm
);
709 ret2
= send_bin_buffer(fd
, (char *)&ret
, sizeof(int));
710 if (ret
< 0 || ret2
< 0) {
711 if (result_shmid
>= 0)
712 if (shm_destroy(result_shmid
) < 0)
713 PARA_ERROR_LOG("destroy result failed\n");
720 static void execute_afs_command(int fd
, uint32_t expected_cookie
)
724 char buf
[sizeof(cookie
) + sizeof(query_shmid
)];
725 int ret
= recv_bin_buffer(fd
, buf
, sizeof(buf
));
728 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-ret
));
731 if (ret
!= sizeof(buf
)) {
732 PARA_NOTICE_LOG("short read (%d bytes, expected %lu)\n",
733 ret
, (long unsigned) sizeof(buf
));
736 cookie
= *(uint32_t *)buf
;
737 if (cookie
!= expected_cookie
) {
738 PARA_NOTICE_LOG("received invalid cookie(got %u, expected %u)\n",
739 (unsigned)cookie
, (unsigned)expected_cookie
);
742 query_shmid
= *(int *)(buf
+ sizeof(cookie
));
743 if (query_shmid
< 0) {
744 PARA_WARNING_LOG("received invalid query shmid %d)\n",
748 /* Ignore return value: Errors might be OK here. */
749 call_callback(fd
, query_shmid
);
752 /** Shutdown connection if query has not arrived until this many seconds. */
753 #define AFS_CLIENT_TIMEOUT 3
755 static void command_post_select(struct sched
*s
, struct task
*t
)
757 struct command_task
*ct
= t
->private_data
;
758 struct sockaddr_un unix_addr
;
759 struct afs_client
*client
, *tmp
;
761 /* First, check the list of connected clients. */
762 list_for_each_entry_safe(client
, tmp
, &afs_client_list
, node
) {
763 if (FD_ISSET(client
->fd
, &s
->rfds
))
764 execute_afs_command(client
->fd
, ct
->cookie
);
765 else { /* prevent bogus connection flooding */
767 tv_diff(now
, &client
->connect_time
, &diff
);
768 if (diff
.tv_sec
< AFS_CLIENT_TIMEOUT
)
770 PARA_WARNING_LOG("connection timeout\n");
773 list_del(&client
->node
);
776 /* Next, accept connections on the local socket. */
777 if (!FD_ISSET(ct
->fd
, &s
->rfds
))
779 t
->ret
= para_accept(ct
->fd
, &unix_addr
, sizeof(unix_addr
));
781 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t
->ret
));
784 client
= para_malloc(sizeof(*client
));
786 client
->connect_time
= *now
;
787 para_list_add(&client
->node
, &afs_client_list
);
792 static void register_command_task(uint32_t cookie
)
794 struct command_task
*ct
= &command_task_struct
;
795 ct
->fd
= setup_command_socket_or_die();
798 ct
->task
.pre_select
= command_pre_select
;
799 ct
->task
.post_select
= command_post_select
;
800 ct
->task
.private_data
= ct
;
801 sprintf(ct
->task
.status
, "command task");
802 register_task(&ct
->task
);
805 static void register_tasks(uint32_t cookie
)
807 register_signal_task();
808 register_command_task(cookie
);
812 * Initialize the audio file selector process.
814 * \param cookie The value used for "authentication".
815 * \param socket_fd File descriptor used for communication with the server.
817 __noreturn
void afs_init(uint32_t cookie
, int socket_fd
)
819 enum play_mode current_play_mode
;
823 INIT_LIST_HEAD(&afs_client_list
);
824 ret
= open_afs_tables();
827 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
830 server_socket
= socket_fd
;
831 ret
= mark_fd_nonblock(server_socket
);
834 PARA_INFO_LOG("server_socket: %d, afs_socket_cookie: %u\n",
835 server_socket
, (unsigned) cookie
);
836 current_play_mode
= init_admissible_files();
837 register_tasks(cookie
);
838 s
.default_timeout
.tv_sec
= 0;
839 s
.default_timeout
.tv_usec
= 99 * 1000;
842 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
843 close_afs_tables(OSL_MARK_CLEAN
);
847 static int create_tables_callback(const struct osl_object
*query
,
848 __a_unused
struct osl_object
*result
)
850 uint32_t table_mask
= *(uint32_t *)query
->data
;
853 close_afs_tables(OSL_MARK_CLEAN
);
854 for (i
= 0; i
< NUM_AFS_TABLES
; i
++) {
855 struct table_info
*ti
= afs_tables
+ i
;
857 if (ti
->flags
& TBLFLAG_SKIP_CREATE
)
859 if (!(table_mask
& (1 << i
)))
861 ret
= osl_create_table(ti
->desc
);
865 ret
= open_afs_tables();
866 return ret
< 0? ret
: 0;
869 int com_init(int fd
, int argc
, char * const * const argv
)
872 uint32_t table_mask
= (1 << (NUM_AFS_TABLES
+ 1)) - 1;
873 struct osl_object query
= {.data
= &table_mask
,
874 .size
= sizeof(table_mask
)};
878 for (i
= 1; i
< argc
; i
++) {
879 for (j
= 0; j
< NUM_AFS_TABLES
; j
++) {
880 struct table_info
*ti
= afs_tables
+ j
;
882 if (ti
->flags
& TBLFLAG_SKIP_CREATE
)
884 if (strcmp(argv
[i
], ti
->desc
->name
))
886 table_mask
|= (1 << j
);
889 if (j
== NUM_AFS_TABLES
)
890 return -E_BAD_TABLE_NAME
;
893 ret
= send_callback_request(create_tables_callback
, &query
, NULL
);
896 return send_va_buffer(fd
, "successfully created afs table(s)\n");
900 * Flags for the check command.
904 enum com_check_flags
{
905 /** Check the audio file table. */
907 /** Check the mood table. */
909 /** Check the playlist table. */
913 int com_check(int fd
, int argc
, char * const * const argv
)
917 struct osl_object result
;
919 for (i
= 1; i
< argc
; i
++) {
920 const char *arg
= argv
[i
];
923 if (!strcmp(arg
, "--")) {
927 if (!strcmp(arg
, "-a")) {
931 if (!strcmp(arg
, "-p")) {
932 flags
|= CHECK_PLAYLISTS
;
935 if (!strcmp(arg
, "-m")) {
936 flags
|= CHECK_MOODS
;
939 return -E_AFS_SYNTAX
;
942 return -E_AFS_SYNTAX
;
945 if (flags
& CHECK_AFT
) {
946 ret
= send_callback_request(aft_check_callback
, NULL
, &result
);
950 ret
= send_buffer(fd
, (char *) result
.data
);
956 if (flags
& CHECK_PLAYLISTS
) {
957 ret
= send_callback_request(playlist_check_callback
, NULL
, &result
);
961 ret
= send_buffer(fd
, (char *) result
.data
);
967 if (flags
& CHECK_MOODS
) {
968 ret
= send_callback_request(mood_check_callback
, NULL
, &result
);
972 ret
= send_buffer(fd
, (char *) result
.data
);