X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=afs.c;h=c726f35f6a3524fa56a8934ae660d62472c8bf45;hp=f5de6609e4f9c87058676068f3172888106393b9;hb=aea0aba712b2170e2d39ffa1c8f8cb55fc0881bf;hpb=c85690666e2ed2327e751b819970658d58479bfb diff --git a/afs.c b/afs.c index f5de6609..c726f35f 100644 --- a/afs.c +++ b/afs.c @@ -1,107 +1,820 @@ /* - * Copyright (C) 2005-2007 Andre Noll + * Copyright (C) 2007 Andre Noll * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Licensed under the GPL v2. For licencing details see COPYING. */ - -/** \file afs.c functions common to all audio file selectors */ +/** \file afs.c Paraslash's audio file selector. */ #include "server.cmdline.h" +#include "para.h" +#include "afh.h" #include "server.h" -#include "vss.h" -#include /* readdir() */ -#include /* stat */ -#include /* mode_t */ #include "error.h" +#include /* readdir() */ +#include +#include +#include "net.h" +#include "afs.h" +#include "ipc.h" #include "string.h" +#include "list.h" +#include "sched.h" +#include "signal.h" +#include "fd.h" + +/** The osl tables used by afs. \sa blob.c. */ +enum afs_table_num { + /** Contains audio file information. See aft.c. */ + TBLNUM_AUDIO_FILES, + /** The table for the paraslash attributes. See attribute.c. */ + TBLNUM_ATTRIBUTES, + /** + * Paraslash's scoring system is based on Gaussian normal + * distributions, and the relevant data is stored in the rbtrees of an + * osl table containing only volatile columns. See score.c for + * details. + */ + TBLNUM_SCORES, + /** + * A standard blob table containing the mood definitions. For details + * see mood.c. + */ + TBLNUM_MOODS, + /** A blob table containing lyrics on a per-song basis. */ + TBLNUM_LYRICS, + /** Another blob table for images (for example album cover art). */ + TBLNUM_IMAGES, + /** Yet another blob table for storing standard playlists. */ + TBLNUM_PLAYLIST, + /** How many tables are in use? */ + NUM_AFS_TABLES +}; + +static struct table_info afs_tables[NUM_AFS_TABLES]; + +struct command_task { + /** The file descriptor for the local socket. */ + int fd; + /** + * Value sent by the command handlers to identify themselves as + * children of the running para_server. + */ + uint32_t cookie; + /** The associated task structure. */ + struct task task; +}; + +/** + * A random number used to "authenticate" the connection. + * + * para_server picks this number by random before forking the afs process. The + * command handlers write this number together with the id of the shared memory + * area containing the query. This way, a malicious local user has to know this + * number to be able to cause the afs process to crash by sending fake queries. + */ +extern uint32_t afs_socket_cookie; + +/** + * Struct to let command handlers execute a callback in afs context. + * + * Commands that need to change the state of afs can't change the relevant data + * structures directly because commands are executed in a child process, i.e. + * they get their own virtual address space. + * + * This structure is used by \p send_callback_request() (executed from handler + * context) in order to let the afs process call the specified function. An + * instance of that structure is written to a shared memory area together with + * the arguments to the callback function. The identifier of the shared memory + * area is written to the command socket. + * + * The afs process accepts connections on the command socket and reads the + * shared memory id, attaches the corresponing area, calls the given handler to + * perform the desired action and to optionally compute a result. + * + * The result and a \p callback_result structure is then written to another + * shared memory area. The identifier for that area is written to the handler's + * command socket, so that the handler process can read the id, attach the + * shared memory area and use the result. + * + * \sa struct callback_result. + */ +struct callback_query { + /** The function to be called. */ + callback_function *handler; + /** The number of bytes of the query */ + size_t query_size; +}; + +/** + * Structure embedded in the result of a callback. + * + * If the callback produced a result, an instance of that structure is embeeded + * into the shared memory area holding the result, mainly to let the command + * handler know the size of the result. + * + * \sa struct callback_query. + */ +struct callback_result { + /** The number of bytes of the result. */ + size_t result_size; +}; + +/** + * Ask the parent process to call a given function. + * + * \param f The function to be called. + * \param query Pointer to arbitrary data for the callback. + * \param result Callback result will be stored here. + * + * This function creates a shared memory area, copies the buffer pointed to by + * \a buf to that area and notifies the afs process that \a f should be + * called ASAP. + * + * \return Negative, on errors, the return value of the callback function + * otherwise. + * + * \sa send_option_arg_callback_request(), send_standard_callback_request(). + */ +int send_callback_request(callback_function *f, struct osl_object *query, + struct osl_object *result) +{ + struct callback_query *cq; + struct callback_result *cr; + int ret, fd = -1, query_shmid, result_shmid; + void *query_shm, *result_shm; + char buf[sizeof(afs_socket_cookie) + sizeof(int)]; +// char *tmpsocket_name; + struct sockaddr_un unix_addr; + + assert(query->data && query->size); + ret = shm_new(query->size + sizeof(*cq)); + if (ret < 0) + return ret; + query_shmid = ret; + ret = shm_attach(query_shmid, ATTACH_RW, &query_shm); + if (ret < 0) + goto out; + cq = query_shm; + cq->handler = f; + cq->query_size = query->size; + + memcpy(query_shm + sizeof(*cq), query->data, query->size); + ret = shm_detach(query_shm); + if (ret < 0) + goto out; + + *(uint32_t *) buf = afs_socket_cookie; + *(int *) (buf + sizeof(afs_socket_cookie)) = query_shmid; + + ret = get_stream_socket(PF_UNIX); + if (ret < 0) + goto out; + fd = ret; + ret = init_unix_addr(&unix_addr, conf.afs_socket_arg); + if (ret < 0) + goto out; + ret = -E_CONNECT; + if (connect(fd, (struct sockaddr *)&unix_addr, sizeof(unix_addr)) < 0) /* FIXME: Use para_connect() */ + goto out; + ret = send_bin_buffer(fd, buf, sizeof(buf)); + PARA_NOTICE_LOG("bin buffer ret: %d\n", ret); + if (ret < 0) + goto out; + ret = recv_bin_buffer(fd, buf, sizeof(buf)); + PARA_NOTICE_LOG("ret: %d\n", ret); + if (ret < 0) + goto out; + if (ret != sizeof(int)) { + ret = -E_RECV; + goto out; + } + ret = *(int *) buf; + PARA_NOTICE_LOG("result_shmid: %d\n", ret); + if (ret <= 0) + goto out; + result_shmid = ret; + ret = shm_attach(result_shmid, ATTACH_RO, &result_shm); + if (ret >= 0) { + assert(result); + cr = result_shm; + result->size = cr->result_size; + result->data = para_malloc(result->size); + memcpy(result->data, result_shm + sizeof(*cr), result->size); + ret = shm_detach(result_shm); + if (ret < 0) + PARA_ERROR_LOG("can not detach result\n"); + } else + PARA_ERROR_LOG("attach result failed: %d\n", ret); + if (shm_destroy(result_shmid) < 0) + PARA_ERROR_LOG("destroy result failed\n"); + ret = 1; +out: + if (shm_destroy(query_shmid) < 0) + PARA_ERROR_LOG("%s\n", "shm destroy error"); + if (fd >= 0) + close(fd); + PARA_DEBUG_LOG("callback_ret: %d\n", ret); + return ret; +} + +/** + * Send a callback request passing an options structure and an argument vector. + * + * \param options pointer to an arbitrary data structure. + * \param argc Argument count. + * \param argv Standard argument vector. + * \param f The callback function. + * \param result The result of the query is stored here. + * + * Some commands have a couple of options that are parsed in child context for + * syntactic correctness and are stored in a special options structure for that + * command. This function allows to pass such a structure together with a list + * of further arguments (often a list of audio files) to the parent process. + * + * \sa send_standard_callback_request(), send_callback_request(). + */ +int send_option_arg_callback_request(struct osl_object *options, + int argc, const char **argv, callback_function *f, + struct osl_object *result) +{ + char *p; + int i, ret; + struct osl_object query = {.size = options? options->size : 0}; + + for (i = 0; i < argc; i++) + query.size += strlen(argv[i]) + 1; + query.data = para_malloc(query.size); + p = query.data; + if (options) { + memcpy(query.data, options->data, options->size); + p += options->size; + } + for (i = 0; i < argc; i++) { + strcpy(p, argv[i]); /* OK */ + p += strlen(argv[i]) + 1; + } + ret = send_callback_request(f, &query, result); + free(query.data); + return ret; +} + +/** + * Send a callback request with an argument vector only. + * + * \param argc The same meaning as in send_option_arg_callback_request(). + * \param argv The same meaning as in send_option_arg_callback_request(). + * \param f The same meaning as in send_option_arg_callback_request(). + * \param result The same meaning as in send_option_arg_callback_request(). + * + * This is similar to send_option_arg_callback_request(), but no options buffer + * is passed to the parent process. + * + * \return The return value of the underlying call to + * send_option_arg_callback_request(). + */ +int send_standard_callback_request(int argc, const char **argv, + callback_function *f, struct osl_object *result) +{ + return send_option_arg_callback_request(NULL, argc, argv, f, result); +} + +/** + * Compare two osl objects of string type. + * + * \param obj1 Pointer to the first object. + * \param obj2 Pointer to the second object. + * + * In any case, only \p MIN(obj1->size, obj2->size) characters of each string + * are taken into account. + * + * \return It returns an integer less than, equal to, or greater than zero if + * \a obj1 is found, respectively, to be less than, to match, or be greater than + * obj2. + * + * \sa strcmp(3), strncmp(3), osl_compare_func. + */ +int string_compare(const struct osl_object *obj1, const struct osl_object *obj2) +{ + const char *str1 = (const char *)obj1->data; + const char *str2 = (const char *)obj2->data; + return strncmp(str1, str2, PARA_MIN(obj1->size, obj2->size)); +} + +/** + * A wrapper for strtol(3). + * + * \param str The string to be converted to a long integer. + * \param result The converted value is stored here. + * + * \return Positive on success, -E_ATOL on errors. + * + * \sa strtol(3), atoi(3). + */ +int para_atol(const char *str, long *result) +{ + char *endptr; + long val; + int ret, base = 10; + + errno = 0; /* To distinguish success/failure after call */ + val = strtol(str, &endptr, base); + ret = -E_ATOL; + if (errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) + goto out; /* overflow */ + if (errno != 0 && val == 0) + goto out; /* other error */ + if (endptr == str) + goto out; /* No digits were found */ + if (*endptr != '\0') + goto out; /* Further characters after number */ + *result = val; + ret = 1; +out: + return ret; +} + + +/* + * write input from fd to dynamically allocated char array, + * but maximal max_size byte. Return size. + */ +static int fd2buf(int fd, char **buf, int max_size) +{ + const size_t chunk_size = 1024; + size_t size = 2048; + char *p; + int ret; + + *buf = para_malloc(size * sizeof(char)); + p = *buf; + while ((ret = read(fd, p, chunk_size)) > 0) { + p += ret; + if ((p - *buf) + chunk_size >= size) { + char *tmp; + + size *= 2; + if (size > max_size) { + ret = -E_INPUT_TOO_LARGE; + goto out; + } + tmp = para_realloc(*buf, size); + p = (p - *buf) + tmp; + *buf = tmp; + } + } + if (ret < 0) { + ret = -E_READ; + goto out; + } + ret = p - *buf; +out: + if (ret < 0 && *buf) + free(*buf); + return ret; +} + +/** + * Read from stdin, and send the result to the parent process. + * + * \param arg_obj Pointer to the arguments to \a f. + * \param f The callback function. + * \param max_len Don't read more than that many bytes from stdin. + * \param result The result of the query is stored here. + * + * This function is used by commands that wish to let para_server store + * arbitrary data specified by the user (for instance the add_blob family of + * commands). First, at most \a max_len bytes are read from stdin, the result + * is concatenated with the buffer given by \a arg_obj, and the combined buffer + * is made available to the parent process via shared memory. + * + * \return Negative on errors, the return value of the underlying call to + * send_callback_request() otherwise. + */ +int stdin_command(struct osl_object *arg_obj, callback_function *f, + unsigned max_len, struct osl_object *result) +{ + char *stdin_buf; + size_t stdin_len; + struct osl_object query; + int ret = fd2buf(STDIN_FILENO, &stdin_buf, max_len); + + if (ret < 0) + return ret; + stdin_len = ret; + query.size = arg_obj->size + stdin_len; + query.data = para_malloc(query.size); + memcpy(query.data, arg_obj->data, arg_obj->size); + memcpy((char *)query.data + arg_obj->size, stdin_buf, stdin_len); + free(stdin_buf); + ret = send_callback_request(f, &query, result); + free(query.data); + return ret; +} + +/** + * Open the audio file with highest score. + * + * \param afd Audio file data is returned here. + * + * This stores all information for streaming the "best" audio file + * in the \a afd structure. + * + * \return Positive on success, negative on errors. + * + * \sa close_audio_file(), open_and_update_audio_file(). + */ +int open_next_audio_file(struct audio_file_data *afd) +{ + struct osl_row *aft_row; + int ret; + for (;;) { + ret = score_get_best(&aft_row, &afd->score); + if (ret < 0) + return ret; + ret = open_and_update_audio_file(aft_row, afd); + if (ret >= 0) + return ret; + } +} /** - * traverse the given directory recursively + * Free all resources which were allocated by open_next_audio_file(). * - * @param dirname the directory to traverse - * @param f: the function to call for each entry. + * \param afd The structure previously filled in by open_next_audio_file(). * - * for each regular file whose filename ends in .yyy, where yyy is a supported - * audio format, the supplied function \a f is called. The directory and - * filename component of the regular file are passed to \a f. + * \return The return value of the underlying call to para_munmap(). * - * \return On success, 1 is returned. Otherwise, this function returns a - * negative value which indicates the kind of the error. + * \sa open_next_audio_file(). */ -int find_audio_files(const char *dirname, int (*f)(const char *, const char *)) +int close_audio_file(struct audio_file_data *afd) +{ + free(afd->afhi.chunk_table); + return para_munmap(afd->map.data, afd->map.size); +} + +#if 0 +static void play_loop(enum play_mode current_play_mode) +{ + int i, ret; + struct audio_file_data afd; + + afd.current_play_mode = current_play_mode; + for (i = 0; i < 0; i++) { + ret = open_next_audio_file(&afd); + if (ret < 0) { + PARA_ERROR_LOG("failed to open next audio file: %d\n", ret); + return; + } + PARA_NOTICE_LOG("next audio file: %s, score: %li\n", afd.path, afd.score); + sleep(1); + close_audio_file(&afd); + } +} +#endif + + +static enum play_mode init_admissible_files(void) +{ + int ret; + char *given_mood, *given_playlist; + + given_mood = "mood_that_was_given_at_the_command_line"; + given_playlist = "given_playlist"; + + if (given_mood) { + ret = mood_open(given_mood); + if (ret >= 0) { + if (given_playlist) + PARA_WARNING_LOG("ignoring playlist %s\n", + given_playlist); + return PLAY_MODE_MOOD; + } + } + if (given_playlist) { + ret = playlist_open(given_playlist); + if (ret >= 0) + return PLAY_MODE_PLAYLIST; + } + ret = mood_open(NULL); /* open first available mood */ + if (ret >= 0) + return PLAY_MODE_MOOD; + mood_open(""); /* open dummy mood, always successful */ + return PLAY_MODE_MOOD; +} + +static int setup_command_socket_or_die(void) +{ + int ret; + char *socket_name = conf.afs_socket_arg; + struct sockaddr_un unix_addr; + + unlink(socket_name); + ret = create_local_socket(socket_name, &unix_addr, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH); + if (ret < 0) + exit(EXIT_FAILURE); + if (listen(ret , 5) < 0) { + PARA_EMERG_LOG("%s", "can not listen on socket\n"); + exit(EXIT_FAILURE); + } + PARA_INFO_LOG("listening on command socket %s (fd %d)\n", socket_name, + ret); + return ret; +} + +static int server_socket; + +void loop(void) +{ + for (;;) + sleep(1); +} + +static void afs_shutdown(enum osl_close_flags flags) +{ + PARA_NOTICE_LOG("cleaning up\n"); + score_shutdown(flags); + attribute_shutdown(flags); + mood_close(); + playlist_close(); + moods_shutdown(flags); + playlists_shutdown(flags); + lyrics_shutdown(flags); + images_shutdown(flags); + aft_shutdown(flags); +} + +static void signal_pre_select(struct sched *s, struct task *t) +{ + struct signal_task *st = t->private_data; + t->ret = 1; + para_fd_set(st->fd, &s->rfds, &s->max_fileno); +} + +static void signal_post_select(struct sched *s, struct task *t) +{ + struct signal_task *st = t->private_data; + t->ret = 1; + if (!FD_ISSET(st->fd, &s->rfds)) + return; + st->signum = para_next_signal(); + PARA_NOTICE_LOG("caught signal %d\n", st->signum); + t->ret = 1; + if (st->signum == SIGUSR1) + return; /* ignore SIGUSR1 */ + afs_shutdown(OSL_MARK_CLEAN); + t->ret = -E_SIGNAL_CAUGHT; +} + +static void register_signal_task(void) +{ + static struct signal_task signal_task_struct; + struct signal_task *st = &signal_task_struct; + st->fd = para_signal_init(); + PARA_INFO_LOG("signal pipe: fd %d\n", st->fd); + para_install_sighandler(SIGINT); + para_install_sighandler(SIGTERM); + para_install_sighandler(SIGPIPE); + + st->task.pre_select = signal_pre_select; + st->task.post_select = signal_post_select; + st->task.private_data = st; + sprintf(st->task.status, "signal task"); + register_task(&st->task); +} + +static void command_pre_select(struct sched *s, struct task *t) +{ + struct command_task *ct = t->private_data; + t->ret = 1; + para_fd_set(ct->fd, &s->rfds, &s->max_fileno); +} + +/* + * On errors, negative value is written to fd. + * On success: If query produced a result, the result_shmid is written to fd. + * Otherwise, zero is written. + */ +static int call_callback(int fd, int query_shmid) +{ + void *query_shm, *result_shm; + struct callback_query *cq; + struct callback_result *cr; + struct osl_object query, result = {.data = NULL}; + int result_shmid = -1, ret, ret2; + + ret = shm_attach(query_shmid, ATTACH_RW, &query_shm); + if (ret < 0) + goto out; + cq = query_shm; + query.data = (char *)query_shm + sizeof(*cq); + query.size = cq->query_size; + ret = cq->handler(&query, &result); + ret2 = shm_detach(query_shm); + if (ret2 < 0 && ret >= 0) + ret = ret2; + if (ret < 0) + goto out; + ret = 0; + if (!result.data || !result.size) + goto out; + ret = shm_new(result.size + sizeof(struct callback_result)); + if (ret < 0) + goto out; + result_shmid = ret; + ret = shm_attach(result_shmid, ATTACH_RW, &result_shm); + if (ret < 0) + goto out; + cr = result_shm; + cr->result_size = result.size; + memcpy(result_shm + sizeof(*cr), result.data, result.size); + ret = shm_detach(result_shm); + if (ret < 0) + goto out; + ret = result_shmid; +out: + free(result.data); + ret2 = send_bin_buffer(fd, (char *)&ret, sizeof(int)); + if (ret < 0 || ret2 < 0) { + if (result_shmid >= 0) + if (shm_destroy(result_shmid) < 0) + PARA_ERROR_LOG("destroy result failed\n"); + if (ret >= 0) + ret = ret2; + } + return ret; +} + +static void command_post_select(struct sched *s, struct task *t) { - DIR *dir = NULL; - struct dirent *entry; + struct command_task *ct = t->private_data; + struct sockaddr_un unix_addr; + char buf[sizeof(uint32_t) + sizeof(int)]; + uint32_t cookie; + int query_shmid, fd; + + t->ret = 1; + if (!FD_ISSET(ct->fd, &s->rfds)) + return; + t->ret = para_accept(ct->fd, &unix_addr, sizeof(unix_addr)); + if (t->ret < 0) + return; /* - * Opening the current directory (".") and calling fchdir() to return - * is usually faster and more reliable than saving cwd in some buffer - * and calling chdir() afterwards (see man 3 getcwd). + * The following errors may be caused by a malicious local user. So do + * not return an error in this case as this would terminate para_afs + * and para_server. */ - int cwd_fd = open(".", O_RDONLY); - struct stat s; - int ret = -1; - -// PARA_DEBUG_LOG("dirname: %s\n", dirname); - if (cwd_fd < 0) - return -E_GETCWD; - ret = -E_CHDIR; - if (chdir(dirname) < 0) - goto out; - ret = -E_OPENDIR; - dir = opendir("."); - if (!dir) - goto out; - /* scan cwd recursively */ - while ((entry = readdir(dir))) { - mode_t m; - char *tmp; - - if (!strcmp(entry->d_name, ".")) - continue; - if (!strcmp(entry->d_name, "..")) - continue; - ret = -E_LSTAT; - if (lstat(entry->d_name, &s) == -1) - continue; - m = s.st_mode; - if (!S_ISREG(m) && !S_ISDIR(m)) /* skip links, sockets, ... */ + fd = t->ret; + /* FIXME: This is easily dosable (peer doesn't send data) */ + t->ret = recv_bin_buffer(fd, buf, sizeof(buf)); + if (t->ret < 0) { + PARA_NOTICE_LOG("%s (%d)\n", PARA_STRERROR(-t->ret), t->ret); + t->ret = 1; + goto out; + } + if (t->ret != sizeof(buf)) { + PARA_NOTICE_LOG("short read (%d bytes, expected %d)\n", + t->ret, sizeof(buf)); + t->ret = 1; + goto out; + } + cookie = *(uint32_t *)buf; + if (cookie != ct->cookie) { + PARA_NOTICE_LOG("received invalid cookie(got %u, expected %u)\n", + (unsigned)cookie, (unsigned)ct->cookie); + t->ret = 1; + goto out; + } + query_shmid = *(int *)(buf + sizeof(cookie)); + if (query_shmid < 0) { + PARA_WARNING_LOG("received invalid query shmid %d)\n", + query_shmid); + t->ret = 1; + goto out; + } + t->ret = call_callback(fd, query_shmid); + if (t->ret < 0) { + PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret)); + t->ret = 1; + goto out; + } +out: + close(fd); +} + +static void register_command_task(uint32_t cookie) +{ + static struct command_task command_task_struct; + struct command_task *ct = &command_task_struct; + ct->fd = setup_command_socket_or_die(); + ct->cookie = cookie; + + ct->task.pre_select = command_pre_select; + ct->task.post_select = command_post_select; + ct->task.private_data = ct; + sprintf(ct->task.status, "command task"); + register_task(&ct->task); +} + +void register_tasks(uint32_t cookie) +{ + register_signal_task(); + register_command_task(cookie); +} + +__noreturn int afs_init(uint32_t cookie, int socket_fd) +{ + int ret; + enum play_mode current_play_mode; + struct sched s; + + server_socket = socket_fd; + PARA_INFO_LOG("server_socket: %d, afs_socket_cookie: %u\n", + server_socket, (unsigned) cookie); + + ret = attribute_init(&afs_tables[TBLNUM_ATTRIBUTES]); + if (ret < 0) + goto attribute_init_error; + ret = moods_init(&afs_tables[TBLNUM_MOODS]); + if (ret < 0) + goto moods_init_error; + ret = playlists_init(&afs_tables[TBLNUM_PLAYLIST]); + if (ret < 0) + goto playlists_init_error; + ret = lyrics_init(&afs_tables[TBLNUM_LYRICS]); + if (ret < 0) + goto lyrics_init_error; + ret = images_init(&afs_tables[TBLNUM_IMAGES]); + if (ret < 0) + goto images_init_error; + ret = score_init(&afs_tables[TBLNUM_SCORES]); + if (ret < 0) + goto score_init_error; + ret = aft_init(&afs_tables[TBLNUM_AUDIO_FILES]); + if (ret < 0) + goto aft_init_error; + + current_play_mode = init_admissible_files(); + register_tasks(cookie); + s.default_timeout.tv_sec = 0; + s.default_timeout.tv_usec = 99 * 1000; + sched(&s); + +aft_init_error: + score_shutdown(OSL_MARK_CLEAN); +score_init_error: + images_shutdown(OSL_MARK_CLEAN); +images_init_error: + lyrics_shutdown(OSL_MARK_CLEAN); +lyrics_init_error: + playlists_shutdown(OSL_MARK_CLEAN); +playlists_init_error: + moods_shutdown(OSL_MARK_CLEAN); +moods_init_error: + attribute_shutdown(OSL_MARK_CLEAN); +attribute_init_error: + exit(EXIT_FAILURE); +} + +static int create_all_tables(void) +{ + int i, ret; + + for (i = 0; i < NUM_AFS_TABLES; i++) { + struct table_info *ti = afs_tables + i; + + if (ti->flags & TBLFLAG_SKIP_CREATE) continue; - if (S_ISREG(m)) { /* regular file */ - if (guess_audio_format(entry->d_name) < 0) + ret = osl_create_table(ti->desc); + if (ret < 0) + return ret; + } + return 1; +} + +/* TODO load tables after init */ +int com_init(__a_unused int fd, int argc, const char **argv) +{ + int i, j, ret; + if (argc == 1) + return create_all_tables(); + for (i = 1; i < argc; i++) { + for (j = 0; j < NUM_AFS_TABLES; j++) { + struct table_info *ti = afs_tables + j; + + if (ti->flags & TBLFLAG_SKIP_CREATE) continue; - ret = f(dirname, entry->d_name); + if (strcmp(argv[i], ti->desc->name)) + continue; + PARA_NOTICE_LOG("creating table %s\n", argv[i]); + ret = osl_create_table(ti->desc); if (ret < 0) - goto out; - continue; + return ret; + break; } - /* directory */ - tmp = make_message("%s/%s", dirname, entry->d_name); - ret = find_audio_files(tmp, f); - free(tmp); - if (ret < 0) - goto out; + if (j == NUM_AFS_TABLES) + return -E_BAD_TABLE_NAME; } - ret = 1; -out: - if (dir) - closedir(dir); - if (fchdir(cwd_fd) < 0) - ret = -E_CHDIR; - close(cwd_fd); - if (ret < 0) - PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret)); - return ret; + return 1; }