4 * Copyright (c) 2017 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: YoungHun Kim <yh8004.kim@samsung.com>
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
22 #include "muse_server_private.h"
24 #include <sys/syscall.h>
28 #if !GLIB_CHECK_VERSION(2, 58, 0)
29 #define G_SOURCE_FUNC(f) ((GSourceFunc) (void (*)(void)) (f))
32 #ifdef MUSE_REGISTER_VIP
33 #include <proc_stat.h>
38 #define MUSE_LWIPC_WAIT_TIME 1000
42 static const char *channel_name[MUSE_CHANNEL_MAX] = {
47 static const char *UDS_files[MUSE_CHANNEL_MAX] = {MUSE_SOCK_FILE0, MUSE_SOCK_FILE1};
49 static muse_server_h muse_server;
51 static const char *module_cmd[MUSE_MODULE_COMMAND_MAX] = {
56 "resource_not_available",
57 "external_storage_state_changed",
59 "resource_manager_shutdown"
62 static bool _ms_attach(int fd, muse_module_callback connection_handler, gpointer module_idx);
63 static void _ms_create_new_server_from_fd(int fd[], int type);
64 static int _ms_new(muse_channel_e channel);
65 static int _ms_get_pid(int fd);
66 static void _ms_get_module_addr(int fd, intptr_t *module_addr);
67 static void _ms_check_idle_state(void);
68 static gpointer _ms_diag_check_idle_state_thread(gpointer data);
69 static gpointer _ms_diag_check_connection_event_thread(gpointer data);
70 static void _ms_lock_state(void);
71 static void _ms_unlock_state(void);
72 static gboolean _ms_connection_handler(GIOChannel *source, GIOCondition condition, gpointer data);
74 static void _ms_wait_event(void);
75 static void _ms_diag_init(void);
76 static void _ms_diag_deinit(void);
77 static gboolean _ms_idle_cb(gpointer user_data);
78 static int _ms_open_lockfile(void);
80 static void _ms_wait_event(void)
82 const char *lw_event_list[] = { "/run/.wm_ready", "/tmp/avoc_ready" };
83 unsigned int count = sizeof(lw_event_list) / sizeof(char *);
85 if (LwipcWaitMultiEvents(lw_event_list, count, true, MUSE_LWIPC_WAIT_TIME, NULL, 0) != 0)
86 LOGE("Fail to receive Multiple Events");
90 static bool _ms_attach(int fd, muse_module_callback connection_handler, gpointer module_idx)
92 GIOChannel *channel = NULL;
97 muse_return_val_if_fail(muse_server, false);
98 muse_return_val_if_fail(muse_core_fd_is_valid(fd), false);
100 channel = g_io_channel_unix_new(fd);
101 muse_return_val_if_fail(channel, false);
103 src = g_io_create_watch(channel, G_IO_IN);
105 LOGE("g_io_create_watch() is failed");
106 g_io_channel_unref(channel);
110 g_source_set_callback(src, G_SOURCE_FUNC(connection_handler), module_idx, NULL);
112 if (g_source_attach(src, g_main_loop_get_context(muse_server->main_loop)) == 0) {
113 LOGE("g_source_attach() is failed");
114 g_io_channel_unref(channel);
120 g_io_channel_unref(channel);
127 static void _ms_create_new_server_from_fd(int fd[], int type)
130 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
134 muse_return_if_fail(muse_server);
136 muse_server->msg_fd = fd[MUSE_CHANNEL_MSG];
137 muse_server->data_fd = fd[MUSE_CHANNEL_DATA];
138 muse_server->type = type;
140 gettimeofday(&muse_server->tv_s, NULL);
142 for (i = 0; i < MUSE_CHANNEL_MAX; i++) {
143 if (!_ms_attach(fd[i], _ms_connection_handler, GINT_TO_POINTER(i))) {
144 snprintf(err_msg, sizeof(err_msg), "Fail to attach server fd %d", fd[i]);
155 static int _ms_new(muse_channel_e channel)
158 struct sockaddr_un addr_un;
159 socklen_t address_len;
160 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
162 muse_return_val_if_fail(channel < MUSE_CHANNEL_MAX, MM_ERROR_INVALID_ARGUMENT);
164 unlink(UDS_files[channel]);
167 fd = socket(AF_UNIX, SOCK_STREAM, 0); /* Unix Domain Socket */
168 if (!muse_core_fd_is_valid(fd)) {
169 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
170 LOGE("socket failed sock (%d) : %s", errno, err_msg);
174 LOGD("muse server fd : %d", fd);
176 memset(&addr_un, 0, sizeof(addr_un));
177 addr_un.sun_family = AF_UNIX;
178 strncpy(addr_un.sun_path, UDS_files[channel], sizeof(addr_un.sun_path) - 1);
179 address_len = sizeof(addr_un);
181 /* Bind to filename */
182 if (bind(fd, (struct sockaddr *)&addr_un, address_len) < 0) {
184 strerror_r(errsv, err_msg, MUSE_MSG_LEN_MAX);
185 LOGE("[%d] socket bind failed (%d) %s", fd, errsv, err_msg);
186 muse_core_log_file_list(UDS_files[channel]);
187 ms_log_user_group_info();
188 if (errsv == EADDRINUSE)
189 unlink(addr_un.sun_path);
194 /* Setup listen queue */
195 if (listen(fd, 5) == MUSE_ERR) {
196 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
197 LOGE("[%d] listen failed (%d) %s", fd, errno, err_msg);
198 muse_core_log_file_list(UDS_files[channel]);
199 ms_log_user_group_info();
204 if (muse_core_set_nonblocking(fd, false) < 0) /* blocking */
205 LOGE("failed to set server socket to blocking");
210 static int _ms_get_pid(int fd)
212 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
213 struct ucred credentials;
216 length = sizeof(struct ucred);
217 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &credentials, &length) < 0) {
218 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
219 LOGE("failed to get the value of credential type %s", err_msg);
223 muse_core_update_fd_state(fd);
225 return credentials.pid;
228 static void _ms_get_module_addr(int fd, intptr_t *module_addr)
233 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
234 char recv_buf[MUSE_MSG_LEN_MAX] = {'\0',};
237 if (muse_core_msg_recv_fd(fd, recv_buf, MUSE_MSG_LEN_MAX, NULL) <= 0) {
238 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
239 LOGE("failed to receive message for module %s", err_msg);
243 jobj = muse_core_msg_object_new(recv_buf, NULL, NULL);
245 ret = muse_core_msg_object_get_value(MSG_KEY_MODULE_ADDR, jobj, MUSE_TYPE_POINTER, module_addr);
246 muse_core_msg_object_free(jobj);
248 LOGE("[%d] Error - module_addr %s", try_count, recv_buf);
252 } while (++try_count < MS_RECV_TRY_COUNT_MAX);
255 static gboolean _ms_connection_handler(GIOChannel *source, GIOCondition condition, gpointer data)
257 int server_sockfd, client_sockfd, pid, idx, len;
258 socklen_t client_len;
259 struct sockaddr_un client_address;
260 muse_channel_e channel = GPOINTER_TO_INT(data);
261 muse_module_h m = NULL;
262 muse_module_h peeked_m = NULL;
263 muse_module_h candidate_m = NULL;
264 intptr_t module_addr = 0;
265 GQueue *instance_queue = NULL;
266 ms_connection_t *connection = NULL;
268 muse_return_val_if_fail(channel == MUSE_CHANNEL_MSG || channel == MUSE_CHANNEL_DATA, FALSE);
270 LOGI("Enter [%s channel]", channel_name[channel]);
272 muse_return_val_if_fail(muse_server, FALSE);
274 connection = muse_server->connection;
275 muse_return_val_if_fail(connection, FALSE);
279 if (!ms_is_server_ready()) {
280 LOGW("Now mused state is not ready...");
286 server_sockfd = g_io_channel_unix_get_fd(source);
287 if (!muse_core_fd_is_valid(server_sockfd)) {
288 LOGE("Critical Error : server %d is invalid", server_sockfd);
290 muse_core_dump_fd_state(server_sockfd);
295 client_len = sizeof(client_address);
297 LOGI("[%d] Try to accept...", server_sockfd);
298 client_sockfd = accept(server_sockfd, (struct sockaddr *)&client_address, &client_len);
299 if (!muse_core_fd_is_valid(client_sockfd)) {
300 LOGE("Critical Error : accept %d is invalid", client_sockfd);
301 muse_core_dump_fd_state(client_sockfd);
302 close(server_sockfd);
308 LOGI("server : %d client [%s channel] : %d", server_sockfd, channel_name[channel], client_sockfd);
310 pid = _ms_get_pid(client_sockfd);
312 if (channel == MUSE_CHANNEL_MSG) {
313 m = g_new0(muse_module_t, 1);
314 SECURE_LOGI("module [%p]", m);
315 m->ch[MUSE_CHANNEL_MSG].sock_fd = client_sockfd;
317 g_mutex_init(&m->dispatch_lock);
319 ms_ipc_create_msg_dispatch_worker(m);
322 _ms_get_module_addr(client_sockfd, &module_addr);
324 ms_connection_lock(connection);
326 instance_queue = connection->instance_q;
327 len = g_queue_get_length(instance_queue);
329 m = (muse_module_h)module_addr;
331 for (idx = 0; idx < len; idx++) {
332 peeked_m = (muse_module_h)g_queue_peek_nth(instance_queue, idx);
334 LOGW("[%d] Make sure if the queue length is changed (%d = %d), which means that it was destroyed somewhere",
335 idx, len, g_queue_get_length(instance_queue));
339 if (peeked_m->pid != pid)
344 LOGE("muse-server can't support the error case which there are several modules now");
345 ms_connection_unlock(connection);
349 if (!muse_core_fd_is_valid(peeked_m->ch[MUSE_CHANNEL_DATA].sock_fd))
350 candidate_m = peeked_m;
352 SECURE_LOGW("already paired module %p", peeked_m);
360 if (muse_core_fd_is_valid(m->ch[MUSE_CHANNEL_DATA].sock_fd)) {
361 SECURE_LOGE("[%d] %s pid %d %p you had better check if instance destroy completed properly",
362 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
363 ms_connection_unlock(connection);
367 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
368 SECURE_LOGI("%s (pid %d) module : %p module addr from client : %p",
369 ms_config_get_host_name(m->idx), pid, m, (void *)module_addr);
375 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
376 SECURE_LOGW("[%d] %s pid %d %p restore module address at the only one null data channel",
377 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
380 ms_connection_unlock(connection);
382 ms_ipc_create_data_dispatch_worker(m);
391 close(server_sockfd);
392 close(client_sockfd);
395 if (channel == MUSE_CHANNEL_MSG)
398 muse_core_connection_close(m->ch[MUSE_CHANNEL_MSG].sock_fd);
408 static void _ms_check_idle_state(void)
410 ms_connection_t *connection = NULL;
411 ms_config_t *conf = NULL;
412 struct timeval tv_c, tv_r;
413 int instance_number, timeout;
414 static int period_idx = 1;
416 muse_return_if_fail(muse_server);
417 muse_return_if_fail(muse_server->state == MUSE_SERVER_STATE_READY);
419 connection = muse_server->connection;
420 muse_return_if_fail(connection);
422 conf = muse_server->conf;
423 muse_return_if_fail(conf);
425 gettimeofday(&tv_c, NULL);
426 timersub(&tv_c, &muse_server->tv_s, &tv_r);
428 timeout = (int)tv_r.tv_sec;
430 ms_connection_lock(connection);
432 instance_number = g_queue_get_length(connection->instance_q);
434 if (timeout >= ms_config_get_log_period() * period_idx) {
435 LOGW("total number of modules = %d ( %s)", instance_number, muse_server->instance_pid_info);
439 ms_connection_unlock(connection);
441 if (conf->is_on_demand) {
442 if (instance_number == 0 && timeout >= ms_config_get_max_idle_time()) {
443 LOGE("Timeout exit !!! [Idle time] %d sec", timeout);
444 ms_remove_ready_file();
450 static gpointer _ms_diag_check_idle_state_thread(gpointer data)
452 int idle_state_wait_time = ms_config_get_idle_state_wait_time();
454 muse_return_val_if_fail(muse_server, NULL);
455 muse_return_val_if_fail(idle_state_wait_time > 0, NULL);
457 while (ms_is_server_ready()) {
458 _ms_check_idle_state();
459 sleep(idle_state_wait_time);
465 static gpointer _ms_diag_check_connection_event_thread(gpointer data)
468 ms_diag_msg_t *dm = NULL;
469 muse_return_val_if_fail(muse_server, NULL);
471 d = &muse_server->diag;
473 while (ms_is_server_ready()) {
474 dm = (ms_diag_msg_t *)g_async_queue_pop(d->msg_aq);
478 LOGD("[%p] POP message (thread stop ? %d [%s])", dm, dm->thread_stop, ms_get_command_string(dm->cmd));
480 if (dm->thread_stop) {
485 if (dm->cmd == API_CREATE) {
486 /* can be updated if connection at the next patch */
487 } else if (dm->cmd == API_DESTROY) {
488 ms_check_cpu_memory();
497 static void _ms_lock_state(void)
499 muse_return_if_fail(muse_server);
500 g_mutex_lock(&muse_server->state_lock);
503 static void _ms_unlock_state(void)
505 muse_return_if_fail(muse_server);
506 g_mutex_unlock(&muse_server->state_lock);
509 static void _ms_diag_init(void)
512 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
513 GError *error = NULL;
515 muse_return_if_fail(muse_server);
517 d = &muse_server->diag;
519 d->idle_state_thread = g_thread_try_new("diag_idle_state",
520 _ms_diag_check_idle_state_thread, muse_server->main_loop, &error);
521 if (!d->idle_state_thread) {
522 snprintf(err_msg, sizeof(err_msg), "diag_idle_state_thread creation failed : %s", error->message);
525 ms_log_process_info(muse_server->pid);
528 d->msg_aq = g_async_queue_new_full(g_free);
529 muse_return_if_fail(d->msg_aq);
531 d->conn_event_thread = g_thread_try_new("diag_connection",
532 _ms_diag_check_connection_event_thread, muse_server->main_loop, &error);
533 if (!d->conn_event_thread) {
534 snprintf(err_msg, sizeof(err_msg), "diag_connection_event_thread creation failed : %s", error->message);
537 ms_log_process_info(muse_server->pid);
541 static void _ms_diag_deinit(void)
548 muse_return_if_fail(muse_server);
550 d = &muse_server->diag;
552 dm = g_new0(ms_diag_msg_t, 1);
554 dm->thread_stop = TRUE;
555 LOGI("[%p] g_async_queue_push", dm);
556 g_async_queue_push_front(d->msg_aq, (gpointer)dm);
558 if (d->idle_state_thread) {
559 g_thread_join(d->idle_state_thread);
560 d->idle_state_thread = NULL;
563 if (d->conn_event_thread) {
564 g_thread_join(d->conn_event_thread);
565 d->conn_event_thread = NULL;
568 g_async_queue_unref(d->msg_aq);
572 static gboolean _ms_idle_cb(gpointer user_data)
574 if (!ms_create_ready_file())
575 LOGE("%s file creation is failed", MUSE_SERVER_READY);
579 return G_SOURCE_REMOVE;
582 static void _ms_init(void)
588 muse_server->system = g_new0(ms_system_t, 1);
589 ms_system_init(muse_server->system);
591 muse_server->conf = g_new0(ms_config_t, 1);
592 ms_config_init(muse_server->conf);
594 muse_server->log = g_new0(ms_log_t, 1);
595 ms_log_init(muse_server->log);
597 muse_server->security = g_new0(ms_security_t, 1);
598 ms_security_init(muse_server->security);
600 for (idx = 0; idx < muse_server->conf->host_cnt; idx++) {
601 muse_server->module[idx] = g_new0(ms_module_t, 1);
602 muse_server->module[idx]->idx = idx;
603 ms_module_init(muse_server->module[idx]);
606 #ifdef MUSE_USE_WATCHDOG
607 muse_server->watchdog = g_new0(ms_watchdog_t, 1);
608 if (ms_watchdog_init(muse_server->watchdog) != MM_ERROR_NONE)
609 LOGE("Fail to initialize server watchdog");
612 muse_server->connection = g_new0(ms_connection_t, 1);
613 ms_connection_init(muse_server->connection);
617 g_mutex_init(&muse_server->state_lock);
619 muse_core_create_fd_table();
621 muse_server->cpu_threshold = ms_config_get_cpu_threshold();
623 muse_server->main_loop = g_main_loop_new(NULL, FALSE);
624 muse_return_if_fail(muse_server->main_loop);
629 static int _ms_open_lockfile(void)
631 int fd, already_running;
632 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
633 char *lockfile = NULL;
635 muse_return_val_if_fail(muse_server, MUSE_ERR);
637 lockfile = ms_config_get_lockfile();
638 muse_return_val_if_fail(lockfile, MUSE_ERR);
640 muse_core_remove_symlink((const char *)lockfile);
641 fd = open(lockfile, O_RDONLY);
642 if (fd == -1 && errno != ENOENT) {
643 /* Cannot open file even though file exists. */
644 snprintf(err_msg, sizeof(err_msg), "Cannot open lock file %s", lockfile);
645 LOGE("open failed : %s", err_msg);
647 } else if (fd != -1) {
648 already_running = flock(fd, LOCK_EX | LOCK_NB) == -1;
650 if (already_running) {
651 LOGE("File already locked. There's already a server running");
656 /* Lock file does not exist, or is not locked. Create a new lockfile and lock it. */
657 fd = open(lockfile, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
659 LOGE("dataserver: Cannot create lock file");
663 if (flock(fd, LOCK_EX | LOCK_NB) != 0) {
664 LOGE("Can't lock the lock file \"%s\". " "Is another instance running?", lockfile);
671 return MM_ERROR_NONE;
674 void ms_setup_syslog(void)
676 int flags = LOG_CONS|LOG_NDELAY|LOG_PID;
677 if (isatty(STDOUT_FILENO))
680 openlog("mused", flags, LOG_DAEMON);
681 LOGD("openlog - mused");
684 void ms_fork(int *notify_fd)
688 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
689 char msg[MUSE_MSG_LEN_MAX] = {'\0',};
691 if (pipe(fds) == MUSE_ERR) {
692 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
693 LOGE("Failed to create pipe to get child status: %s", err_msg);
697 if ((pid = fork()) < 0) {
698 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
699 LOGE("Error: fork() failed: %s", err_msg);
701 } else if (pid != 0) {
703 /* Read in a string from the pipe */
704 if (read(fds[0], msg, sizeof(msg)) <= 0) {
705 LOGE("Failed to read from a file descriptor [%d]", fds[0]);
711 /* Parent process closes up output side of pipe */
712 if (!strcmp(msg, MSG_DONE)) {
713 LOGI("Successfully daemonized");
716 LOGE("Daemonizing failed after fork");
719 } else if (pid == 0) {
720 /* Child process closes up input side of pipe */
726 pid_t ms_daemonize(int *notify_fd)
731 muse_return_val_if_fail(notify_fd, MUSE_ERR);
735 if ((pid = setsid()) < 0) {
736 LOGE("create new session");
740 /* change the file mode mask */
744 LOGD("result = %d sid: %d pgid: %d pid: %d ppid: %d", result, (int)getsid(0), (int)getpgid(0), (int)pid, (int)getppid());
746 /* redirect fds to /dev/null */
747 fd = open("/dev/null", O_RDWR);
748 if (!muse_core_fd_is_valid(fd)) {
749 LOGE("Critical Error : %d is invalid", fd);
754 close(STDOUT_FILENO);
755 close(STDERR_FILENO);
757 dup2(fd, STDIN_FILENO);
758 dup2(fd, STDOUT_FILENO);
759 dup2(fd, STDERR_FILENO);
766 void ms_daemonize_complete(int notify_fd)
770 muse_return_if_fail(muse_core_fd_is_valid(notify_fd));
772 #ifdef MUSE_REGISTER_VIP
773 proc_stat_set_vip_process();
776 write(notify_fd, MSG_DONE, strlen(MSG_DONE) + 1);
777 LOGI("[%d] Notify parent process that child initialization is done", notify_fd);
783 void ms_gst_init(char **cmd)
788 gboolean ret = FALSE;
791 #ifdef MUSE_TTRACE_LOG
792 trace_begin("MUSE:gst_init");
795 gst_param_cnt = ms_config_get_gst_param_cnt();
798 argv = g_malloc0(sizeof(gchar *) * (gst_param_cnt + 1));
800 argv[argc++] = (gchar *)cmd[0];
801 for (; argc <= gst_param_cnt; argc++) {
802 argv[argc] = ms_config_get_gst_param_str(argc - 1);
803 LOGI("%d %s", argc, argv[argc]);
806 /* initializing gstreamer */
807 ret = gst_init_check(&argc, &argv, &err);
809 LOGE("Could not initialize GStreamer: %s ", err ? err->message : "unknown error occurred");
814 LOGI("gst_init_check is completed");
819 LOGI("complete to initialize gstreamer");
821 #ifdef MUSE_TTRACE_LOG
826 void ms_gst_preload_plugin(void)
829 char *saveptr = NULL;
830 char plugin_path[128];
831 const char *delimeters = " ,";
832 gchar *gst_preload_plugins = g_strdup(ms_config_get_gst_preload_plugins());
833 GstPlugin *plugin = NULL;
835 muse_return_if_fail(gst_preload_plugins);
837 LOGI("preload plugins [%s]", gst_preload_plugins);
839 token = strtok_r(gst_preload_plugins, delimeters, &saveptr);
841 snprintf(plugin_path, sizeof(plugin_path), "%s/gstreamer-1.0/libgst%s.so", LIBDIR, token);
843 LOGI(" plugin path : %s", plugin_path);
845 plugin = gst_plugin_load_file(plugin_path, NULL);
847 gst_object_unref(plugin);
849 LOGW("failed to load plugin [%s]", plugin_path);
851 token = strtok_r(NULL, delimeters, &saveptr);
854 g_free(gst_preload_plugins);
859 int ms_pidfile_create(const char *path, pid_t pid)
863 char pid_buf[MUSE_MSG_LEN] = {'\0',};
864 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
866 muse_return_val_if_fail(path, MM_ERROR_INVALID_ARGUMENT);
867 muse_core_remove_symlink(path);
868 fd = open(path, O_WRONLY | O_CREAT, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
870 if (!muse_core_fd_is_valid(fd)) {
871 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
872 LOGE("Fail to open pidfile [%s] : %s", path, err_msg);
873 return MM_ERROR_FILE_NOT_FOUND;
876 lock.l_type = F_WRLCK;
878 lock.l_whence = SEEK_SET;
881 if (fcntl(fd, F_SETLK, &lock) < 0) {
882 if (errno != EACCES && errno != EAGAIN) {
883 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
884 LOGE("Fail to lock pidfile [%s] : %s", path, err_msg);
886 LOGE("process is already running");
889 return MM_ERROR_FILE_INTERNAL;
892 if (ftruncate(fd, 0) < 0) {
893 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
894 LOGE("Fail to truncate pidfile [%s] : %s", path, err_msg);
896 return MM_ERROR_FILE_INTERNAL;
899 memset(pid_buf, 0, sizeof(pid_buf));
900 snprintf(pid_buf, sizeof(pid_buf), "%u", pid);
902 if (write(fd, pid_buf, strlen(pid_buf)) != (int)strlen(pid_buf)) {
903 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
904 LOGE("Fail to write pid to pidfile [%s] : %s", path, err_msg);
906 return MM_ERROR_FILE_WRITE;
910 return MM_ERROR_NONE;
913 void ms_init(char **argv)
917 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
921 muse_server = g_new0(muse_server_t, 1);
925 muse_server->pid = ms_daemonize(¬ify_fd);
927 if (ms_pidfile_create(MUSE_DEFAULT_PIDFILE, muse_server->pid) != MM_ERROR_NONE)
930 LOGD("MUSE_DEFAULT_PIDFILE(%s) file was created", MUSE_DEFAULT_PIDFILE);
934 muse_return_if_fail(_ms_open_lockfile() == MM_ERROR_NONE);
938 ms_daemonize_complete(notify_fd);
940 #ifdef MUSE_TTRACE_LOG
944 ms_system_subscribe_external_event(muse_server->system);
946 #ifdef MUSE_USE_WATCHDOG
947 if (!ms_watchdog_attach(muse_server->watchdog)) {
948 LOGE("watchdog thread failed");
949 ms_log_process_info(muse_server->pid);
956 #ifdef MUSE_TTRACE_LOG
957 trace_begin("MUSE:preloading module");
959 for (idx = 0; idx < ms_config_get_host_cnt(); idx++) {
960 if (0 == strncmp(ms_config_get_preloaded_value(idx), "yes", strlen("yes") + 1)) {
961 g_module_symbol(ms_module_open(idx), CMD_DISPATCHER, (gpointer *)&cmd_dispatcher);
962 if (cmd_dispatcher && cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE])
963 cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE](NULL);
966 #ifdef MUSE_TTRACE_LOG
970 #ifdef MUSE_TTRACE_LOG
971 trace_begin("MUSE:preloading GST module");
973 ms_gst_preload_plugin();
974 #ifdef MUSE_TTRACE_LOG
978 #ifdef MUSE_GCOV_TEST
979 muse_core_setenv("GCOV_PREFIX", "/tmp", 1);
985 muse_server_h ms_get_instance(void)
990 gboolean ms_check_module_idx(int idx)
992 int module_cnt = ms_config_get_host_cnt();
994 if (idx < 0 || idx >= module_cnt) {
995 LOGE("%d error - the number of modules is %d", idx, module_cnt);
1002 ms_module_t *ms_get_module_instance(int idx)
1004 muse_return_val_if_fail(ms_check_module_idx(idx), NULL);
1006 return muse_server->module[idx];
1011 int retval = MUSE_ERR;
1016 muse_return_val_if_fail(muse_server, retval);
1017 muse_return_val_if_fail(muse_server->conf, retval);
1018 muse_return_val_if_fail(muse_server->connection, retval);
1019 muse_return_val_if_fail(muse_server->log, retval);
1020 muse_return_val_if_fail(muse_server->security, retval);
1021 muse_return_val_if_fail(muse_server->watchdog, retval);
1023 ms_recursive_rmdir(MUSE_DATA_ROOT_PATH);
1025 ms_set_state(MUSE_SERVER_STATE_IDLE);
1029 #ifdef MUSE_USE_WATCHDOG
1030 ms_watchdog_detach(muse_server->watchdog);
1032 if (ms_watchdog_deinit(muse_server->watchdog) == MM_ERROR_NONE)
1033 free(muse_server->watchdog);
1035 LOGE("Fail to deinitialize server watchdog");
1038 ms_remove_ready_file();
1040 retval = muse_server->retval;
1041 muse_core_fd_close(muse_server->msg_fd);
1042 muse_core_fd_close(muse_server->data_fd);
1043 for (idx = 0; idx < MUSE_CHANNEL_MAX; idx++) {
1044 if (remove(UDS_files[idx]) == MUSE_ERR)
1045 LOGE("remove %s failed", UDS_files[idx]);
1048 if (remove(MUSE_DEFAULT_PIDFILE) == -1)
1049 LOGE("remove %s failed [errno : %d]", MUSE_DEFAULT_PIDFILE, errno);
1051 for (idx = 0; idx < muse_server->conf->host_cnt; idx++)
1052 ms_module_deinit(muse_server->module[idx]);
1054 ms_security_deinit(muse_server->security);
1055 muse_server->security = NULL;
1057 ms_system_deinit(muse_server->system);
1058 muse_server->system = NULL;
1060 ms_log_deinit(muse_server->log);
1061 muse_server->log = NULL;
1063 ms_config_deinit(muse_server->conf);
1064 muse_server->conf = NULL;
1066 ms_connection_deinit(muse_server->connection);
1067 muse_server->connection = NULL;
1069 muse_core_destroy_fd_table();
1073 g_mutex_clear(&muse_server->state_lock);
1075 g_free(muse_server);
1082 void ms_check_cpu_memory(void)
1084 int used_pss, memory_threshold, cpu_usage;
1085 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
1086 ms_connection_t *connection = NULL;
1088 muse_return_if_fail(muse_server);
1090 connection = muse_server->connection;
1091 muse_return_if_fail(connection);
1093 ms_connection_lock(connection);
1095 if (g_queue_is_empty(connection->instance_q) && ms_is_server_ready()) {
1096 used_pss = ms_system_get_memory_usage(muse_server->pid);
1097 cpu_usage = muse_core_get_process_cpu_usage(muse_server->pid);
1099 LOGW("[%d] Proportional set size %d (KByte) (CPU %d)", muse_server->pid, used_pss, cpu_usage);
1100 memory_threshold = ms_config_get_memory_threshold();
1102 if (used_pss >= memory_threshold || cpu_usage >= muse_server->cpu_threshold) {
1103 ms_set_state(MUSE_SERVER_STATE_IDLE);
1104 ms_log_process_info(muse_server->pid);
1106 snprintf(err_msg, sizeof(err_msg), "[Memory Leak] %d >= %d (KByte) [CPU] %d >= %d (percent)",
1107 used_pss, memory_threshold, cpu_usage, muse_server->cpu_threshold);
1109 LOGE("%s", err_msg);
1110 ms_connection_unlock(connection);
1111 ms_respawn(SIGTERM);
1114 muse_core_remove_all_fd_table();
1116 LOGI("skip cpu memory check due to instance queue length : %d", g_queue_get_length(connection->instance_q));
1119 ms_connection_unlock(connection);
1122 int ms_kill_thread(int signo)
1124 return syscall(__NR_tkill, syscall(__NR_gettid), signo);
1129 int fd[MUSE_CHANNEL_MAX];
1132 for (i = 0; i < MUSE_CHANNEL_MAX; i++) {
1133 if (ms_config_is_on_demand() && i == MUSE_CHANNEL_MSG)
1134 fd[i] = SD_LISTEN_FDS_START;
1138 if (!muse_core_fd_is_valid(fd[i])) {
1139 LOGE("Failed to create socket server %d", i);
1140 for (j = 0; j < i; j++)
1146 _ms_create_new_server_from_fd(fd, READ | PERSIST);
1153 muse_return_if_fail(muse_server->main_loop);
1155 muse_return_if_fail(g_idle_add_full(G_PRIORITY_HIGH, _ms_idle_cb, NULL, NULL) > 0);
1157 LOGI("g_main_loop_run");
1158 g_main_loop_run(muse_server->main_loop);
1163 void ms_cmd_dispatch(muse_module_h m, muse_module_command_e cmd)
1165 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
1167 if (m->ch[MUSE_CHANNEL_MSG].dll_handle &&
1168 g_module_symbol(m->ch[MUSE_CHANNEL_MSG].dll_handle, CMD_DISPATCHER, (gpointer *)&cmd_dispatcher)) {
1169 if (cmd_dispatcher && cmd_dispatcher[cmd])
1170 cmd_dispatcher[cmd](m);
1174 void ms_respawn(int signo)
1176 pid_t pid = getpid();
1177 LOGE("send %d process signal %d", (int)pid, signo);
1179 muse_return_if_fail(muse_server);
1181 ms_set_state(MUSE_SERVER_STATE_IDLE);
1182 ms_kill_thread(signo);
1185 int ms_get_pid(muse_module_h m)
1187 muse_return_val_if_fail(m, MUSE_ERR);
1191 void ms_log_process_info(int pid)
1193 muse_core_log_process_thread_info(pid);
1195 muse_core_log_process_opened_fds(pid);
1197 muse_core_log_process_cpu_memory(pid);
1200 void ms_log_user_group_info(void)
1204 char buffer[MUSE_MSG_MAX_LENGTH];
1205 struct passwd pwbuf;
1206 struct passwd *pwbufp;
1208 struct group *gbufp;
1213 getpwuid_r(uid, &pwbuf, buffer, sizeof(buffer), &pwbufp);
1214 muse_return_if_fail(pwbufp);
1216 getgrgid_r(gid, &gbuf, buffer, sizeof(buffer), &gbufp);
1217 muse_return_if_fail(gbufp);
1219 LOGE("user [%s : %lu] group [%s : %lu]", pwbufp->pw_name, (unsigned long)uid, gbufp->gr_name, (unsigned long)gid);
1222 gboolean ms_is_log_enabled(void)
1224 return ms_config_is_log_enabled();
1227 gboolean ms_init_bufmgr(void)
1231 muse_return_val_if_fail(muse_server, FALSE);
1233 muse_server->bufmgr = tbm_bufmgr_init(-1);
1234 if (!muse_server->bufmgr) {
1235 LOGE("Error - tbm_bufmgr_init");
1236 ms_log_user_group_info();
1240 LOGD("Leave bufmgr: %p", muse_server->bufmgr);
1245 void ms_deinit_bufmgr(void)
1249 muse_return_if_fail(muse_server);
1250 muse_return_if_fail(muse_server->bufmgr);
1252 tbm_bufmgr_deinit(muse_server->bufmgr);
1257 void ms_cmd_dispatch_foreach_func(gpointer data, gpointer user_data)
1259 muse_module_h m = (muse_module_h)data;
1260 ms_cmd_dispatcher_info_t *dispatch = (ms_cmd_dispatcher_info_t *)user_data;
1261 muse_module_command_e cmd;
1262 muse_external_storage_info_t *storage;
1264 muse_return_if_fail(muse_server);
1265 muse_return_if_fail(m);
1266 muse_return_if_fail(dispatch);
1268 cmd = dispatch->cmd;
1270 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED) {
1271 storage = &dispatch->storage;
1272 LOGD("external storage id %d state %d path %s", storage->id, storage->state, storage->path);
1273 muse_server_set_user_data(m, (void *)storage);
1276 ms_cmd_dispatch(m, cmd);
1277 SECURE_LOGI("[%s] module %p (%s)", module_cmd[cmd], m, muse_server->conf->host[m->idx]);
1279 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED)
1280 muse_server_set_user_data(m, NULL);
1283 void ms_set_state(ms_state_e state)
1285 muse_return_if_fail(muse_server);
1287 g_mutex_lock(&muse_server->state_lock);
1288 muse_server->state = state;
1289 g_mutex_unlock(&muse_server->state_lock);
1292 gboolean ms_is_server_ready(void)
1294 muse_return_val_if_fail(muse_server, FALSE);
1296 return muse_server->state == MUSE_SERVER_STATE_READY;
1299 gboolean ms_create_ready_file(void)
1302 #ifndef MUSE_USE_LWIPC
1306 #ifdef MUSE_USE_LWIPC
1309 ms_set_state(MUSE_SERVER_STATE_READY);
1311 if (LwipcEventDone(MUSE_SERVER_READY) < 0) {
1312 LOGE("Fail to send server ready done event");
1316 ready_fd = creat(MUSE_SERVER_READY, 0644);
1317 if (muse_core_fd_is_valid(ready_fd)) {
1318 LOGD("MUSE_SERVER_READY(%s) file was created", MUSE_SERVER_READY);
1321 ms_set_state(MUSE_SERVER_STATE_READY);
1323 LOGE("[%d] Fail to create MUSE_SERVER_READY(%s)", ready_fd, MUSE_SERVER_READY);
1333 void ms_remove_ready_file(void)
1335 #ifdef MUSE_USE_LWIPC
1336 (void)LwipcResetEvent(MUSE_SERVER_READY);
1338 (void)unlink(MUSE_SERVER_READY);
1339 (void)unlink(MUSE_DEFAULT_PIDFILE);
1343 const char *ms_get_command_string(int cmd)
1345 if (cmd == API_CREATE)
1347 else if (cmd == API_DESTROY)
1348 return "disconnect";
1350 LOGE("Invalid value of cmd (%d)", cmd);
1352 return "Invalid value of cmd";