Make afs commands work.
[paraslash.git] / afs.c
1 /*
2 * Copyright (C) 1997-2007 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file afs.c Paraslash's audio file selector. */
8
9 #include "server.cmdline.h"
10 #include "para.h"
11 #include "afh.h"
12 #include "server.h"
13 #include "error.h"
14 #include <dirent.h> /* readdir() */
15 #include <sys/mman.h>
16 #include <sys/time.h>
17 #include "net.h"
18 #include "afs.h"
19 #include "ipc.h"
20 #include "string.h"
21 #include "list.h"
22 #include "sched.h"
23 #include "signal.h"
24 #include "fd.h"
25
26 extern uint32_t afs_socket_cookie;
27
28 /**
29 * Compare two osl objects of string type.
30 *
31 * \param obj1 Pointer to the first object.
32 * \param obj2 Pointer to the second object.
33 *
34 * In any case, only \p MIN(obj1->size, obj2->size) characters of each string
35 * are taken into account.
36 *
37 * \return It returns an integer less than, equal to, or greater than zero if
38 * \a obj1 is found, respectively, to be less than, to match, or be greater than
39 * obj2.
40 *
41 * \sa strcmp(3), strncmp(3), osl_compare_func.
42 */
43 int string_compare(const struct osl_object *obj1, const struct osl_object *obj2)
44 {
45 const char *str1 = (const char *)obj1->data;
46 const char *str2 = (const char *)obj2->data;
47 return strncmp(str1, str2, PARA_MIN(obj1->size, obj2->size));
48 }
49
50 /** The osl tables used by afs. \sa blob.c */
51 enum afs_table_num {
52 /** Contains audio file information. See aft.c. */
53 TBLNUM_AUDIO_FILES,
54 /** The table for the paraslash attributes. See attribute.c. */
55 TBLNUM_ATTRIBUTES,
56 /**
57 * Paraslash's scoring system is based on Gaussian normal
58 * distributions, and the relevant data is stored in the rbtrees of an
59 * osl table containing only volatile columns. See score.c for
60 * details.
61 */
62 TBLNUM_SCORES,
63 /**
64 * A standard blob table containing the mood definitions. For details
65 * see mood.c.
66 */
67 TBLNUM_MOODS,
68 /** A blob table containing lyrics on a per-song basis. */
69 TBLNUM_LYRICS,
70 /** Another blob table for images (for example album cover art). */
71 TBLNUM_IMAGES,
72 /** Yet another blob table for storing standard playlists. */
73 TBLNUM_PLAYLIST,
74 /** How many tables are in use? */
75 NUM_AFS_TABLES
76 };
77
78 static struct table_info afs_tables[NUM_AFS_TABLES];
79
80 struct command_task {
81 /** The file descriptor for the local socket. */
82 int fd;
83 /**
84 * Value sent by the command handlers to identify themselves as
85 * children of the running para_server.
86 */
87 uint32_t cookie;
88 /** The associated task structure. */
89 struct task task;
90 };
91
92
93 /**
94 * A wrapper for strtol(3).
95 *
96 * \param str The string to be converted to a long integer.
97 * \param result The converted value is stored here.
98 *
99 * \return Positive on success, -E_ATOL on errors.
100 *
101 * \sa strtol(3), atoi(3).
102 */
103 int para_atol(const char *str, long *result)
104 {
105 char *endptr;
106 long val;
107 int ret, base = 10;
108
109 errno = 0; /* To distinguish success/failure after call */
110 val = strtol(str, &endptr, base);
111 ret = -E_ATOL;
112 if (errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
113 goto out; /* overflow */
114 if (errno != 0 && val == 0)
115 goto out; /* other error */
116 if (endptr == str)
117 goto out; /* No digits were found */
118 if (*endptr != '\0')
119 goto out; /* Further characters after number */
120 *result = val;
121 ret = 1;
122 out:
123 return ret;
124 }
125
126 /**
127 * Struct to let para_server call a function specified from child context.
128 *
129 * Commands that need to change the state of para_server can't
130 * change the relevant data structures directly because commands
131 * are executed in a child process, i.e. they get their own
132 * virtual address space. This structure must be used to let
133 * para_server (i.e. the parent process) call a function specified
134 * by the child (the command handler).
135 *
136 * \sa fork(2), ipc.c.
137 */
138 struct callback_data {
139 /** The function to be called. */
140 callback_function *handler;
141 /** The sma for the parameters of the callback function. */
142 int query_shmid;
143 /** The size of the query sma. */
144 size_t query_size;
145 /** If the callback produced a result, it is stored in this sma. */
146 int result_shmid;
147 /** The size of the result sma. */
148 size_t result_size;
149 /** The return value of the callback function. */
150 int callback_ret;
151 /** The return value of the callback() procedure. */
152 int sma_ret;
153 };
154
155 struct callback_query {
156 /** The function to be called. */
157 callback_function *handler;
158 /** The number of bytes of the query */
159 size_t query_size;
160 };
161
162 struct callback_result {
163 /** The number of bytes of the result. */
164 size_t result_size;
165 };
166
167 static struct callback_data *shm_callback_data;
168 static int callback_mutex;
169 static int child_mutex;
170 static int result_mutex;
171
172 /**
173 * Ask the parent process to call a given function.
174 *
175 * \param f The function to be called.
176 * \param query Pointer to arbitrary data for the callback.
177 * \param result Callback result will be stored here.
178 *
179 * This function creates a shared memory area, copies the buffer pointed to by
180 * \a buf to that area and notifies the afs process that \a f should be
181 * called ASAP.
182 *
183 * \return Negative, on errors, the return value of the callback function
184 * otherwise.
185 *
186 * \sa send_option_arg_callback_request(), send_standard_callback_request().
187 */
188 int send_callback_request(callback_function *f, struct osl_object *query,
189 struct osl_object *result)
190 {
191 struct callback_query *cq;
192 struct callback_result *cr;
193 int ret, fd = -1, query_shmid, result_shmid;
194 void *query_shm, *result_shm;
195 char buf[sizeof(afs_socket_cookie) + sizeof(int)];
196 // char *tmpsocket_name;
197 struct sockaddr_un unix_addr;
198
199 assert(query->data && query->size);
200 ret = shm_new(query->size + sizeof(*cq));
201 if (ret < 0)
202 return ret;
203 query_shmid = ret;
204 ret = shm_attach(query_shmid, ATTACH_RW, &query_shm);
205 if (ret < 0)
206 goto out;
207 cq = query_shm;
208 cq->handler = f;
209 cq->query_size = query->size;
210
211 memcpy(query_shm + sizeof(*cq), query->data, query->size);
212 ret = shm_detach(query_shm);
213 if (ret < 0)
214 goto out;
215
216 *(uint32_t *) buf = afs_socket_cookie;
217 *(int *) (buf + sizeof(afs_socket_cookie)) = query_shmid;
218
219 ret = get_stream_socket(PF_UNIX);
220 if (ret < 0)
221 goto out;
222 fd = ret;
223 ret = init_unix_addr(&unix_addr, conf.afs_socket_arg);
224 if (ret < 0)
225 goto out;
226 ret = -E_CONNECT;
227 if (connect(fd, (struct sockaddr *)&unix_addr, sizeof(unix_addr)) < 0) /* FIXME: Use para_connect() */
228 goto out;
229 ret = send_bin_buffer(fd, buf, sizeof(buf));
230 PARA_NOTICE_LOG("bin buffer ret: %d\n", ret);
231 if (ret < 0)
232 goto out;
233 ret = recv_bin_buffer(fd, buf, sizeof(buf));
234 PARA_NOTICE_LOG("ret: %d\n", ret);
235 if (ret < 0)
236 goto out;
237 if (ret != sizeof(int)) {
238 ret = -E_RECV;
239 goto out;
240 }
241 ret = *(int *) buf;
242 PARA_NOTICE_LOG("result_shmid: %d\n", ret);
243 if (ret <= 0)
244 goto out;
245 result_shmid = ret;
246 ret = shm_attach(result_shmid, ATTACH_RO, &result_shm);
247 if (ret >= 0) {
248 assert(result);
249 cr = result_shm;
250 result->size = cr->result_size;
251 result->data = para_malloc(result->size);
252 memcpy(result->data, result_shm + sizeof(*cr), result->size);
253 ret = shm_detach(result_shm);
254 if (ret < 0)
255 PARA_ERROR_LOG("can not detach result\n");
256 } else
257 PARA_ERROR_LOG("attach result failed: %d\n", ret);
258 if (shm_destroy(result_shmid) < 0)
259 PARA_ERROR_LOG("destroy result failed\n");
260 ret = 1;
261 out:
262 if (shm_destroy(query_shmid) < 0)
263 PARA_ERROR_LOG("%s\n", "shm destroy error");
264 if (fd >= 0)
265 close(fd);
266 PARA_DEBUG_LOG("callback_ret: %d\n", ret);
267 return ret;
268 }
269
270 /**
271 * Send a callback request passing an options structure and an argument vector.
272 *
273 * \param options pointer to an arbitrary data structure.
274 * \param argc Argument count.
275 * \param argv Standard argument vector.
276 * \param f The callback function.
277 * \param result The result of the query is stored here.
278 *
279 * Some commands have a couple of options that are parsed in child context for
280 * syntactic correctness and are stored in a special options structure for that
281 * command. This function allows to pass such a structure together with a list
282 * of further arguments (often a list of audio files) to the parent process.
283 *
284 * \sa send_standard_callback_request(), send_callback_request().
285 */
286 int send_option_arg_callback_request(struct osl_object *options,
287 int argc, const char **argv, callback_function *f,
288 struct osl_object *result)
289 {
290 char *p;
291 int i, ret;
292 struct osl_object query = {.size = options? options->size : 0};
293
294 for (i = 0; i < argc; i++)
295 query.size += strlen(argv[i]) + 1;
296 query.data = para_malloc(query.size);
297 p = query.data;
298 if (options) {
299 memcpy(query.data, options->data, options->size);
300 p += options->size;
301 }
302 for (i = 0; i < argc; i++) {
303 strcpy(p, argv[i]); /* OK */
304 p += strlen(argv[i]) + 1;
305 }
306 ret = send_callback_request(f, &query, result);
307 free(query.data);
308 return ret;
309 }
310
311 /**
312 * Send a callback request with an argument vector only.
313 *
314 * \param argc The same meaning as in send_option_arg_callback_request().
315 * \param argv The same meaning as in send_option_arg_callback_request().
316 * \param f The same meaning as in send_option_arg_callback_request().
317 * \param result The same meaning as in send_option_arg_callback_request().
318 *
319 * This is similar to send_option_arg_callback_request(), but no options buffer
320 * is passed to the parent process.
321 *
322 * \return The return value of the underlying call to
323 * send_option_arg_callback_request().
324 */
325 int send_standard_callback_request(int argc, const char **argv,
326 callback_function *f, struct osl_object *result)
327 {
328 return send_option_arg_callback_request(NULL, argc, argv, f, result);
329 }
330
331 /*
332 * write input from fd to dynamically allocated char array,
333 * but maximal max_size byte. Return size.
334 */
335 static int fd2buf(int fd, char **buf, int max_size)
336 {
337 const size_t chunk_size = 1024;
338 size_t size = 2048;
339 char *p;
340 int ret;
341
342 *buf = para_malloc(size * sizeof(char));
343 p = *buf;
344 while ((ret = read(fd, p, chunk_size)) > 0) {
345 p += ret;
346 if ((p - *buf) + chunk_size >= size) {
347 char *tmp;
348
349 size *= 2;
350 if (size > max_size) {
351 ret = -E_INPUT_TOO_LARGE;
352 goto out;
353 }
354 tmp = para_realloc(*buf, size);
355 p = (p - *buf) + tmp;
356 *buf = tmp;
357 }
358 }
359 if (ret < 0) {
360 ret = -E_READ;
361 goto out;
362 }
363 ret = p - *buf;
364 out:
365 if (ret < 0 && *buf)
366 free(*buf);
367 return ret;
368 }
369
370 /**
371 * Read from stdin, and send the result to the parent process.
372 *
373 * \param arg_obj Pointer to the arguments to \a f.
374 * \param f The callback function.
375 * \param max_len Don't read more than that many bytes from stdin.
376 * \param result The result of the query is stored here.
377 *
378 * This function is used by commands that wish to let para_server store
379 * arbitrary data specified by the user (for instance the add_blob family of
380 * commands). First, at most \a max_len bytes are read from stdin, the result
381 * is concatenated with the buffer given by \a arg_obj, and the combined buffer
382 * is made available to the parent process via shared memory.
383 *
384 * \return Negative on errors, the return value of the underlying call to
385 * send_callback_request() otherwise.
386 */
387 int stdin_command(struct osl_object *arg_obj, callback_function *f,
388 unsigned max_len, struct osl_object *result)
389 {
390 char *stdin_buf;
391 size_t stdin_len;
392 struct osl_object query;
393 int ret = fd2buf(STDIN_FILENO, &stdin_buf, max_len);
394
395 if (ret < 0)
396 return ret;
397 stdin_len = ret;
398 query.size = arg_obj->size + stdin_len;
399 query.data = para_malloc(query.size);
400 memcpy(query.data, arg_obj->data, arg_obj->size);
401 memcpy((char *)query.data + arg_obj->size, stdin_buf, stdin_len);
402 free(stdin_buf);
403 ret = send_callback_request(f, &query, result);
404 free(query.data);
405 return ret;
406 }
407
408 /**
409 * Open the audio file with highest score.
410 *
411 * \param afd Audio file data is returned here.
412 *
413 * This stores all information for streaming the "best" audio file
414 * in the \a afd structure.
415 *
416 * \return Positive on success, negative on errors.
417 *
418 * \sa close_audio_file(), open_and_update_audio_file().
419 */
420 int open_next_audio_file(struct audio_file_data *afd)
421 {
422 struct osl_row *aft_row;
423 int ret;
424 for (;;) {
425 ret = score_get_best(&aft_row, &afd->score);
426 if (ret < 0)
427 return ret;
428 ret = open_and_update_audio_file(aft_row, afd);
429 if (ret >= 0)
430 return ret;
431 }
432 }
433
434 /**
435 * Free all resources which were allocated by open_next_audio_file().
436 *
437 * \param afd The structure previously filled in by open_next_audio_file().
438 *
439 * \return The return value of the underlying call to para_munmap().
440 *
441 * \sa open_next_audio_file().
442 */
443 int close_audio_file(struct audio_file_data *afd)
444 {
445 free(afd->afhi.chunk_table);
446 return para_munmap(afd->map.data, afd->map.size);
447 }
448
449 #if 0
450 static void play_loop(enum play_mode current_play_mode)
451 {
452 int i, ret;
453 struct audio_file_data afd;
454
455 afd.current_play_mode = current_play_mode;
456 for (i = 0; i < 0; i++) {
457 ret = open_next_audio_file(&afd);
458 if (ret < 0) {
459 PARA_ERROR_LOG("failed to open next audio file: %d\n", ret);
460 return;
461 }
462 PARA_NOTICE_LOG("next audio file: %s, score: %li\n", afd.path, afd.score);
463 sleep(1);
464 close_audio_file(&afd);
465 }
466 }
467 #endif
468
469
470 static enum play_mode init_admissible_files(void)
471 {
472 int ret;
473 char *given_mood, *given_playlist;
474
475 given_mood = "mood_that_was_given_at_the_command_line";
476 given_playlist = "given_playlist";
477
478 if (given_mood) {
479 ret = mood_open(given_mood);
480 if (ret >= 0) {
481 if (given_playlist)
482 PARA_WARNING_LOG("ignoring playlist %s\n",
483 given_playlist);
484 return PLAY_MODE_MOOD;
485 }
486 }
487 if (given_playlist) {
488 ret = playlist_open(given_playlist);
489 if (ret >= 0)
490 return PLAY_MODE_PLAYLIST;
491 }
492 ret = mood_open(NULL); /* open first available mood */
493 if (ret >= 0)
494 return PLAY_MODE_MOOD;
495 mood_open(""); /* open dummy mood, always successful */
496 return PLAY_MODE_MOOD;
497 }
498
499 static int setup_command_socket_or_die(void)
500 {
501 int ret;
502 char *socket_name = conf.afs_socket_arg;
503 struct sockaddr_un unix_addr;
504
505 unlink(socket_name);
506 ret = create_local_socket(socket_name, &unix_addr,
507 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
508 if (ret < 0)
509 exit(EXIT_FAILURE);
510 if (listen(ret , 5) < 0) {
511 PARA_EMERG_LOG("%s", "can not listen on socket\n");
512 exit(EXIT_FAILURE);
513 }
514 PARA_INFO_LOG("listening on command socket %s (fd %d)\n", socket_name,
515 ret);
516 return ret;
517 }
518
519 static int server_socket;
520
521 void loop(void)
522 {
523 for (;;)
524 sleep(1);
525 }
526
527 static void afs_shutdown(enum osl_close_flags flags)
528 {
529 PARA_NOTICE_LOG("cleaning up\n");
530 score_shutdown(flags);
531 attribute_shutdown(flags);
532 mood_close();
533 playlist_close();
534 moods_shutdown(flags);
535 playlists_shutdown(flags);
536 lyrics_shutdown(flags);
537 images_shutdown(flags);
538 aft_shutdown(flags);
539 }
540
541 static void signal_pre_select(struct sched *s, struct task *t)
542 {
543 struct signal_task *st = t->private_data;
544 t->ret = 1;
545 para_fd_set(st->fd, &s->rfds, &s->max_fileno);
546 }
547
548 static void signal_post_select(struct sched *s, struct task *t)
549 {
550 struct signal_task *st = t->private_data;
551 t->ret = 1;
552 if (!FD_ISSET(st->fd, &s->rfds))
553 return;
554 st->signum = para_next_signal();
555 PARA_NOTICE_LOG("caught signal %d\n", st->signum);
556 t->ret = 1;
557 if (st->signum == SIGUSR1)
558 return; /* ignore SIGUSR1 */
559 afs_shutdown(OSL_MARK_CLEAN);
560 t->ret = -E_SIGNAL_CAUGHT;
561 }
562
563 static void register_signal_task(void)
564 {
565 static struct signal_task signal_task_struct;
566 struct signal_task *st = &signal_task_struct;
567 st->fd = para_signal_init();
568 PARA_INFO_LOG("signal pipe: fd %d\n", st->fd);
569 para_install_sighandler(SIGINT);
570 para_install_sighandler(SIGTERM);
571 para_install_sighandler(SIGPIPE);
572
573 st->task.pre_select = signal_pre_select;
574 st->task.post_select = signal_post_select;
575 st->task.private_data = st;
576 sprintf(st->task.status, "signal task");
577 register_task(&st->task);
578 }
579
580 static void command_pre_select(struct sched *s, struct task *t)
581 {
582 struct command_task *ct = t->private_data;
583 t->ret = 1;
584 para_fd_set(ct->fd, &s->rfds, &s->max_fileno);
585 }
586
587 /*
588 * On errors, negative value is written to fd.
589 * On success: If query produced a result, the result_shmid is written to fd.
590 * Otherwise, zero is written.
591 */
592 static int call_callback(int fd, int query_shmid)
593 {
594 void *query_shm, *result_shm;
595 struct callback_query *cq;
596 struct callback_result *cr;
597 struct osl_object query, result = {.data = NULL};
598 int result_shmid = -1, ret, ret2;
599
600 ret = shm_attach(query_shmid, ATTACH_RW, &query_shm);
601 if (ret < 0)
602 goto out;
603 cq = query_shm;
604 query.data = (char *)query_shm + sizeof(*cq);
605 query.size = cq->query_size;
606 ret = cq->handler(&query, &result);
607 ret2 = shm_detach(query_shm);
608 if (ret2 < 0 && ret >= 0)
609 ret = ret2;
610 if (ret < 0)
611 goto out;
612 ret = 0;
613 if (!result.data || !result.size)
614 goto out;
615 ret = shm_new(result.size + sizeof(struct callback_result));
616 if (ret < 0)
617 goto out;
618 result_shmid = ret;
619 ret = shm_attach(result_shmid, ATTACH_RW, &result_shm);
620 if (ret < 0)
621 goto out;
622 cr = result_shm;
623 cr->result_size = result.size;
624 memcpy(result_shm + sizeof(*cr), result.data, result.size);
625 ret = shm_detach(result_shm);
626 if (ret < 0)
627 goto out;
628 ret = result_shmid;
629 out:
630 free(result.data);
631 ret2 = send_bin_buffer(fd, (char *)&ret, sizeof(int));
632 if (ret < 0 || ret2 < 0) {
633 if (result_shmid >= 0)
634 if (shm_destroy(result_shmid) < 0)
635 PARA_ERROR_LOG("destroy result failed\n");
636 if (ret >= 0)
637 ret = ret2;
638 }
639 return ret;
640 }
641
642 static void command_post_select(struct sched *s, struct task *t)
643 {
644 struct command_task *ct = t->private_data;
645 struct sockaddr_un unix_addr;
646 char buf[sizeof(uint32_t) + sizeof(int)];
647 uint32_t cookie;
648 int query_shmid, fd;
649
650 t->ret = 1;
651 if (!FD_ISSET(ct->fd, &s->rfds))
652 return;
653 t->ret = para_accept(ct->fd, &unix_addr, sizeof(unix_addr));
654 if (t->ret < 0)
655 return;
656 /*
657 * The following errors may be caused by a malicious local user. So do
658 * not return an error in this case as this would terminate para_afs
659 * and para_server.
660 */
661 fd = t->ret;
662 /* FIXME: This is easily dosable (peer doesn't send data) */
663 t->ret = recv_bin_buffer(fd, buf, sizeof(buf));
664 if (t->ret < 0) {
665 PARA_NOTICE_LOG("%s (%d)\n", PARA_STRERROR(-t->ret), t->ret);
666 t->ret = 1;
667 goto out;
668 }
669 if (t->ret != sizeof(buf)) {
670 PARA_NOTICE_LOG("short read (%d bytes, expected %d)\n",
671 t->ret, sizeof(buf));
672 t->ret = 1;
673 goto out;
674 }
675 cookie = *(uint32_t *)buf;
676 if (cookie != ct->cookie) {
677 PARA_NOTICE_LOG("received invalid cookie(got %u, expected %u)\n",
678 (unsigned)cookie, (unsigned)ct->cookie);
679 t->ret = 1;
680 goto out;
681 }
682 query_shmid = *(int *)(buf + sizeof(cookie));
683 if (query_shmid < 0) {
684 PARA_WARNING_LOG("received invalid query shmid %d)\n",
685 query_shmid);
686 t->ret = 1;
687 goto out;
688 }
689 t->ret = call_callback(fd, query_shmid);
690 if (t->ret < 0) {
691 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
692 t->ret = 1;
693 goto out;
694 }
695 out:
696 close(fd);
697 }
698
699 static void register_command_task(uint32_t cookie)
700 {
701 static struct command_task command_task_struct;
702 struct command_task *ct = &command_task_struct;
703 ct->fd = setup_command_socket_or_die();
704 ct->cookie = cookie;
705
706 ct->task.pre_select = command_pre_select;
707 ct->task.post_select = command_post_select;
708 ct->task.private_data = ct;
709 sprintf(ct->task.status, "command task");
710 register_task(&ct->task);
711 }
712
713 void register_tasks(uint32_t cookie)
714 {
715 register_signal_task();
716 register_command_task(cookie);
717 }
718
719 __noreturn int afs_init(uint32_t cookie, int socket_fd)
720 {
721 int ret;
722 // void *shm_area;
723 enum play_mode current_play_mode;
724 struct sched s;
725
726 server_socket = socket_fd;
727 PARA_INFO_LOG("server_socket: %d, afs_socket_cookie: %u\n",
728 server_socket, (unsigned) cookie);
729
730 ret = attribute_init(&afs_tables[TBLNUM_ATTRIBUTES]);
731 if (ret < 0)
732 goto attribute_init_error;
733 ret = moods_init(&afs_tables[TBLNUM_MOODS]);
734 if (ret < 0)
735 goto moods_init_error;
736 ret = playlists_init(&afs_tables[TBLNUM_PLAYLIST]);
737 if (ret < 0)
738 goto playlists_init_error;
739 ret = lyrics_init(&afs_tables[TBLNUM_LYRICS]);
740 if (ret < 0)
741 goto lyrics_init_error;
742 ret = images_init(&afs_tables[TBLNUM_IMAGES]);
743 if (ret < 0)
744 goto images_init_error;
745 ret = score_init(&afs_tables[TBLNUM_SCORES]);
746 if (ret < 0)
747 goto score_init_error;
748 ret = aft_init(&afs_tables[TBLNUM_AUDIO_FILES]);
749 if (ret < 0)
750 goto aft_init_error;
751
752 current_play_mode = init_admissible_files();
753 register_tasks(cookie);
754 s.default_timeout.tv_sec = 0;
755 s.default_timeout.tv_usec = 99 * 1000;
756 sched(&s);
757
758 #if 0
759 ret = shm_new(sizeof(struct callback_data));
760 if (ret < 0)
761 return ret;
762 shmid = ret;
763 ret = shm_attach(shmid, ATTACH_RW, &shm_area);
764 if (ret < 0)
765 return ret;
766 shm_callback_data = shm_area;
767 ret = mutex_new();
768 if (ret < 0)
769 return ret;
770 callback_mutex = ret;
771 ret = mutex_new();
772 if (ret < 0)
773 return ret;
774 child_mutex = ret;
775 ret = mutex_new();
776 if (ret < 0)
777 return ret;
778 result_mutex = ret;
779 mutex_lock(result_mutex);
780 #endif
781 aft_init_error:
782 score_shutdown(OSL_MARK_CLEAN);
783 score_init_error:
784 images_shutdown(OSL_MARK_CLEAN);
785 images_init_error:
786 lyrics_shutdown(OSL_MARK_CLEAN);
787 lyrics_init_error:
788 playlists_shutdown(OSL_MARK_CLEAN);
789 playlists_init_error:
790 moods_shutdown(OSL_MARK_CLEAN);
791 moods_init_error:
792 attribute_shutdown(OSL_MARK_CLEAN);
793 attribute_init_error:
794 exit(EXIT_FAILURE);
795 }
796
797 static int create_all_tables(void)
798 {
799 int i, ret;
800
801 for (i = 0; i < NUM_AFS_TABLES; i++) {
802 struct table_info *ti = afs_tables + i;
803
804 if (ti->flags & TBLFLAG_SKIP_CREATE)
805 continue;
806 ret = osl_create_table(ti->desc);
807 if (ret < 0)
808 return ret;
809 }
810 return 1;
811 }
812
813 /* TODO load tables after init */
814 int com_init(__a_unused int fd, int argc, const char **argv)
815 {
816 int i, j, ret;
817 if (argc == 1)
818 return create_all_tables();
819 for (i = 1; i < argc; i++) {
820 for (j = 0; j < NUM_AFS_TABLES; j++) {
821 struct table_info *ti = afs_tables + j;
822
823 if (ti->flags & TBLFLAG_SKIP_CREATE)
824 continue;
825 if (strcmp(argv[i], ti->desc->name))
826 continue;
827 PARA_NOTICE_LOG("creating table %s\n", argv[i]);
828 ret = osl_create_table(ti->desc);
829 if (ret < 0)
830 return ret;
831 break;
832 }
833 if (j == NUM_AFS_TABLES)
834 return -E_BAD_TABLE_NAME;
835 }
836 return 1;
837 }