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 for (i = 0; i < MUSE_CHANNEL_MAX; i++) {
141 if (!_ms_attach(fd[i], _ms_connection_handler, GINT_TO_POINTER(i))) {
142 snprintf(err_msg, sizeof(err_msg), "Fail to attach server fd %d", fd[i]);
145 ms_terminate(SIGABRT);
152 static int _ms_new(muse_channel_e channel)
155 struct sockaddr_un addr_un;
156 socklen_t address_len;
157 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
159 muse_return_val_if_fail(channel < MUSE_CHANNEL_MAX, MM_ERROR_INVALID_ARGUMENT);
161 unlink(UDS_files[channel]);
164 fd = socket(AF_UNIX, SOCK_STREAM, 0); /* Unix Domain Socket */
165 if (!muse_core_fd_is_valid(fd)) {
166 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
167 LOGE("socket failed sock (%d) : %s", errno, err_msg);
171 LOGD("muse server fd : %d", fd);
173 memset(&addr_un, 0, sizeof(addr_un));
174 addr_un.sun_family = AF_UNIX;
175 strncpy(addr_un.sun_path, UDS_files[channel], sizeof(addr_un.sun_path) - 1);
176 address_len = sizeof(addr_un);
178 /* Bind to filename */
179 if (bind(fd, (struct sockaddr *)&addr_un, address_len) < 0) {
181 strerror_r(errsv, err_msg, MUSE_MSG_LEN_MAX);
182 LOGE("[%d] socket bind failed (%d) %s", fd, errsv, err_msg);
183 muse_core_log_file_list(UDS_files[channel]);
184 ms_log_user_group_info();
185 if (errsv == EADDRINUSE)
186 unlink(addr_un.sun_path);
191 /* Setup listen queue */
192 if (listen(fd, 5) == MUSE_ERR) {
193 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
194 LOGE("[%d] listen() failed (%d) %s", fd, errno, err_msg);
195 muse_core_log_file_list(UDS_files[channel]);
196 ms_log_user_group_info();
201 if (muse_core_set_nonblocking(fd, false) < 0) /* blocking */
202 LOGE("failed to set server socket to blocking");
207 static int _ms_get_pid(int fd)
209 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
210 struct ucred credentials;
213 length = sizeof(struct ucred);
214 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &credentials, &length) < 0) {
215 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
216 LOGE("failed to get the value of credential type %s", err_msg);
220 muse_core_update_fd_state(fd);
222 return credentials.pid;
225 static void _ms_get_module_addr(int fd, intptr_t *module_addr)
230 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
231 char recv_buf[MUSE_MSG_LEN_MAX] = {'\0',};
234 if (muse_core_msg_recv_fd(fd, recv_buf, MUSE_MSG_LEN_MAX, NULL) <= 0) {
235 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
236 LOGE("failed to receive message for module %s", err_msg);
240 jobj = muse_core_msg_object_new(recv_buf, NULL, NULL);
242 ret = muse_core_msg_object_get_value(MSG_KEY_MODULE_ADDR, jobj, MUSE_TYPE_POINTER, module_addr);
243 muse_core_msg_object_free(jobj);
245 LOGE("[%d] Error - module_addr %s", try_count, recv_buf);
249 } while (++try_count < MS_RECV_TRY_COUNT_MAX);
252 static gboolean _ms_connection_handler(GIOChannel *source, GIOCondition condition, gpointer data)
254 int server_sockfd, client_sockfd, pid, idx, len;
255 socklen_t client_len;
256 struct sockaddr_un client_address;
257 muse_channel_e channel = GPOINTER_TO_INT(data);
258 muse_module_h m = NULL;
259 muse_module_h peeked_m = NULL;
260 muse_module_h candidate_m = NULL;
261 intptr_t module_addr = 0;
262 GQueue *instance_queue = NULL;
263 ms_connection_t *connection = NULL;
264 char time_buf[MUSE_MSG_TIME_LEN];
266 muse_return_val_if_fail(channel == MUSE_CHANNEL_MSG || channel == MUSE_CHANNEL_DATA, FALSE);
268 LOGI("Enter [%s channel]", channel_name[channel]);
270 muse_return_val_if_fail(muse_server, FALSE);
272 connection = muse_server->connection;
273 muse_return_val_if_fail(connection, FALSE);
277 if (!ms_is_server_ready()) {
278 LOGW("Now mused state is not ready...");
280 ms_terminate(SIGABRT);
283 server_sockfd = g_io_channel_unix_get_fd(source);
284 if (!muse_core_fd_is_valid(server_sockfd)) {
285 LOGE("Critical Error : server %d is invalid", server_sockfd);
287 muse_core_dump_fd_state(server_sockfd);
288 ms_terminate(SIGABRT);
291 client_len = sizeof(client_address);
293 LOGI("[%d] Try to accept...", server_sockfd);
294 client_sockfd = accept(server_sockfd, (struct sockaddr *)&client_address, &client_len);
295 if (!muse_core_fd_is_valid(client_sockfd)) {
296 LOGE("Critical Error : accept %d is invalid", client_sockfd);
297 muse_core_dump_fd_state(client_sockfd);
298 close(server_sockfd);
300 ms_terminate(SIGABRT);
303 LOGI("server : %d client [%s channel] : %d", server_sockfd, channel_name[channel], client_sockfd);
305 pid = _ms_get_pid(client_sockfd);
307 if (channel == MUSE_CHANNEL_MSG) {
308 m = g_new0(muse_module_t, 1);
309 SECURE_LOGI("module [%p]", m);
310 m->ch[MUSE_CHANNEL_MSG].sock_fd = client_sockfd;
312 g_mutex_init(&m->dispatch_lock);
314 ms_ipc_create_msg_dispatch_worker(m);
317 _ms_get_module_addr(client_sockfd, &module_addr);
319 ms_connection_lock(connection);
321 instance_queue = connection->instance_q;
322 len = g_queue_get_length(instance_queue);
324 m = (muse_module_h)module_addr;
326 for (idx = 0; idx < len; idx++) {
327 peeked_m = (muse_module_h)g_queue_peek_nth(instance_queue, idx);
329 LOGW("[%d] Make sure if the queue length is changed (%d = %d), which means that it was destroyed somewhere",
330 idx, len, g_queue_get_length(instance_queue));
334 if (peeked_m->pid != pid)
339 LOGE("muse-server can't support the error case which there are several modules now");
340 ms_connection_unlock(connection);
344 if (!muse_core_fd_is_valid(peeked_m->ch[MUSE_CHANNEL_DATA].sock_fd))
345 candidate_m = peeked_m;
347 SECURE_LOGW("already paired module %p", peeked_m);
355 if (muse_core_fd_is_valid(m->ch[MUSE_CHANNEL_DATA].sock_fd)) {
356 SECURE_LOGE("[%d] %s pid %d %p you had better check if instance destroy completed properly",
357 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
358 ms_connection_unlock(connection);
362 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
363 SECURE_LOGI("%s (pid %d) module : %p module addr from client : %p",
364 ms_config_get_host_name(m->idx), pid, m, (void *)module_addr);
370 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
371 SECURE_LOGW("[%d] %s pid %d %p restore module address at the only one null data channel",
372 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
375 ms_connection_unlock(connection);
377 ms_ipc_create_data_dispatch_worker(m);
380 muse_core_get_cur_time(&muse_server->tv, NULL);
381 muse_core_change_time_format((int)muse_server->tv.tv_sec, time_buf);
382 LOGW("connected time (%s)", time_buf);
390 close(server_sockfd);
391 close(client_sockfd);
394 if (channel == MUSE_CHANNEL_MSG)
397 muse_core_connection_close(m->ch[MUSE_CHANNEL_MSG].sock_fd);
407 static void _ms_check_idle_state(void)
409 ms_connection_t *connection = NULL;
410 ms_config_t *conf = NULL;
411 int instance_number, period;
412 uint32_t elapsed_time;
414 static int period_idx = 1;
415 char time_buf[MUSE_MSG_TIME_LEN];
417 muse_return_if_fail(muse_server);
418 muse_return_if_fail(muse_server->state == MUSE_SERVER_STATE_READY);
420 connection = muse_server->connection;
421 muse_return_if_fail(connection);
423 conf = muse_server->conf;
424 muse_return_if_fail(conf);
426 period = ms_config_get_log_period();
428 if (muse_server->tv.tv_sec == 0)
431 muse_core_get_cur_time(&tv, NULL);
433 elapsed_time = tv.tv_sec - muse_server->tv.tv_sec;
435 ms_connection_lock(connection);
437 instance_number = g_queue_get_length(connection->instance_q);
439 if (elapsed_time >= (uint32_t)(period * period_idx)) {
440 muse_core_change_time_format((int)muse_server->tv.tv_sec, time_buf);
441 LOGW("[#%d] %u sec [period %d] [last connected time %s] total number of modules = %d ( %s)", period_idx,
442 elapsed_time, period, time_buf, instance_number, muse_server->instance_pid_info);
446 ms_connection_unlock(connection);
448 if (conf->is_on_demand) {
449 if (instance_number == 0 && elapsed_time >= (uint32_t)ms_config_get_max_idle_time()) {
450 LOGE("Timeout exit !!! [Idle time] %u sec", elapsed_time);
451 ms_remove_ready_file();
457 static gpointer _ms_diag_check_idle_state_thread(gpointer data)
459 int idle_state_wait_time = ms_config_get_idle_state_wait_time();
461 muse_return_val_if_fail(muse_server, NULL);
462 muse_return_val_if_fail(idle_state_wait_time > 0, NULL);
464 while (ms_is_server_ready()) {
465 _ms_check_idle_state();
466 sleep(idle_state_wait_time);
472 static gpointer _ms_diag_check_connection_event_thread(gpointer data)
475 ms_diag_msg_t *dm = NULL;
476 muse_return_val_if_fail(muse_server, NULL);
478 d = &muse_server->diag;
480 while (ms_is_server_ready()) {
481 dm = (ms_diag_msg_t *)g_async_queue_pop(d->msg_aq);
485 LOGD("[%p] POP message (thread stop ? %d [%s])", dm, dm->thread_stop, ms_get_command_string(dm->cmd));
487 if (dm->thread_stop) {
492 if (dm->cmd == API_CREATE) {
493 /* can be updated if connection at the next patch */
494 } else if (dm->cmd == API_DESTROY) {
495 ms_check_cpu_memory();
504 static void _ms_lock_state(void)
506 muse_return_if_fail(muse_server);
507 g_mutex_lock(&muse_server->state_lock);
510 static void _ms_unlock_state(void)
512 muse_return_if_fail(muse_server);
513 g_mutex_unlock(&muse_server->state_lock);
516 static void _ms_diag_init(void)
519 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
520 GError *error = NULL;
522 muse_return_if_fail(muse_server);
524 d = &muse_server->diag;
526 d->idle_state_thread = g_thread_try_new("diag_idle_state",
527 _ms_diag_check_idle_state_thread, muse_server->main_loop, &error);
528 if (!d->idle_state_thread) {
529 snprintf(err_msg, sizeof(err_msg), "diag_idle_state_thread creation failed : %s", error->message);
532 ms_log_process_info(muse_server->pid);
535 d->msg_aq = g_async_queue_new_full(g_free);
536 muse_return_if_fail(d->msg_aq);
538 d->conn_event_thread = g_thread_try_new("diag_connection",
539 _ms_diag_check_connection_event_thread, muse_server->main_loop, &error);
540 if (!d->conn_event_thread) {
541 snprintf(err_msg, sizeof(err_msg), "diag_connection_event_thread creation failed : %s", error->message);
544 ms_log_process_info(muse_server->pid);
548 static void _ms_diag_deinit(void)
555 muse_return_if_fail(muse_server);
557 d = &muse_server->diag;
559 dm = g_new0(ms_diag_msg_t, 1);
561 dm->thread_stop = TRUE;
562 LOGI("[%p] g_async_queue_push", dm);
563 g_async_queue_push_front(d->msg_aq, (gpointer)dm);
565 if (d->idle_state_thread) {
566 g_thread_join(d->idle_state_thread);
567 d->idle_state_thread = NULL;
570 if (d->conn_event_thread) {
571 g_thread_join(d->conn_event_thread);
572 d->conn_event_thread = NULL;
575 g_async_queue_unref(d->msg_aq);
579 static gboolean _ms_idle_cb(gpointer user_data)
582 char time_buf[MUSE_MSG_TIME_LEN];
584 if (!ms_create_ready_file())
585 LOGE("%s file creation is failed", MUSE_SERVER_READY);
589 muse_core_get_cur_time(&tv, NULL);
591 muse_core_change_time_format((int)tv.tv_sec, time_buf);
593 LOGW("muse server is completed to ready (%s)", time_buf);
595 return G_SOURCE_REMOVE;
598 static void _ms_init(void)
604 muse_server->system = g_new0(ms_system_t, 1);
605 ms_system_init(muse_server->system);
607 muse_server->conf = g_new0(ms_config_t, 1);
608 ms_config_init(muse_server->conf);
610 muse_server->log = g_new0(ms_log_t, 1);
611 ms_log_init(muse_server->log);
613 muse_server->security = g_new0(ms_security_t, 1);
614 ms_security_init(muse_server->security);
616 for (idx = 0; idx < muse_server->conf->host_cnt; idx++) {
617 muse_server->module[idx] = g_new0(ms_module_t, 1);
618 muse_server->module[idx]->idx = idx;
619 ms_module_init(muse_server->module[idx]);
622 #ifdef MUSE_USE_WATCHDOG
623 muse_server->watchdog = g_new0(ms_watchdog_t, 1);
624 if (ms_watchdog_init(muse_server->watchdog) != MM_ERROR_NONE)
625 LOGE("Fail to initialize server watchdog");
628 muse_server->connection = g_new0(ms_connection_t, 1);
629 ms_connection_init(muse_server->connection);
633 g_mutex_init(&muse_server->state_lock);
635 muse_core_create_fd_table();
637 muse_server->cpu_threshold = ms_config_get_cpu_threshold();
639 muse_server->main_loop = g_main_loop_new(NULL, FALSE);
640 muse_return_if_fail(muse_server->main_loop);
645 static int _ms_open_lockfile(void)
647 int fd, already_running;
648 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
649 char *lockfile = NULL;
651 muse_return_val_if_fail(muse_server, MUSE_ERR);
653 lockfile = ms_config_get_lockfile();
654 muse_return_val_if_fail(lockfile, MUSE_ERR);
656 muse_core_remove_symlink((const char *)lockfile);
657 fd = open(lockfile, O_RDONLY);
658 if (fd == -1 && errno != ENOENT) {
659 /* Cannot open file even though file exists. */
660 snprintf(err_msg, sizeof(err_msg), "Cannot open lock file %s", lockfile);
661 LOGE("open failed : %s", err_msg);
663 } else if (fd != -1) {
664 already_running = flock(fd, LOCK_EX | LOCK_NB) == -1;
666 if (already_running) {
667 LOGE("File already locked. There's already a server running");
672 /* Lock file does not exist, or is not locked. Create a new lockfile and lock it. */
673 fd = open(lockfile, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
675 LOGE("dataserver: Cannot create lock file");
679 if (flock(fd, LOCK_EX | LOCK_NB) != 0) {
680 LOGE("Can't lock the lock file \"%s\". " "Is another instance running?", lockfile);
687 return MM_ERROR_NONE;
690 void ms_setup_syslog(void)
692 int flags = LOG_CONS|LOG_NDELAY|LOG_PID;
693 if (isatty(STDOUT_FILENO))
696 openlog("mused", flags, LOG_DAEMON);
697 LOGD("openlog - mused");
700 void ms_fork(int *notify_fd)
704 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
705 char msg[MUSE_MSG_LEN_MAX] = {'\0',};
707 if (pipe(fds) == MUSE_ERR) {
708 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
709 LOGE("Failed to create pipe to get child status: %s", err_msg);
713 if ((pid = fork()) < 0) {
714 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
715 LOGE("Error: fork() failed: %s", err_msg);
717 } else if (pid != 0) {
719 /* Read in a string from the pipe */
720 if (read(fds[0], msg, sizeof(msg)) <= 0) {
721 LOGE("Failed to read from a file descriptor [%d]", fds[0]);
727 /* Parent process closes up output side of pipe */
728 if (!strcmp(msg, MSG_DONE)) {
729 LOGI("Successfully daemonized");
732 LOGE("Daemonizing failed after fork");
735 } else if (pid == 0) {
736 /* Child process closes up input side of pipe */
742 pid_t ms_daemonize(int *notify_fd)
747 muse_return_val_if_fail(notify_fd, MUSE_ERR);
751 if ((pid = setsid()) < 0) {
752 LOGE("create new session");
756 /* change the file mode mask */
760 LOGD("result = %d sid: %d pgid: %d pid: %d ppid: %d", result, (int)getsid(0), (int)getpgid(0), (int)pid, (int)getppid());
762 /* redirect fds to /dev/null */
763 fd = open("/dev/null", O_RDWR);
764 if (!muse_core_fd_is_valid(fd)) {
765 LOGE("Critical Error : %d is invalid", fd);
770 close(STDOUT_FILENO);
771 close(STDERR_FILENO);
773 dup2(fd, STDIN_FILENO);
774 dup2(fd, STDOUT_FILENO);
775 dup2(fd, STDERR_FILENO);
782 void ms_daemonize_complete(int notify_fd)
786 muse_return_if_fail(muse_core_fd_is_valid(notify_fd));
788 #ifdef MUSE_REGISTER_VIP
789 proc_stat_set_vip_process();
792 write(notify_fd, MSG_DONE, strlen(MSG_DONE) + 1);
793 LOGW("[%d] Notify parent process that child initialization is done", notify_fd);
799 void ms_gst_init(char **cmd)
804 gboolean ret = FALSE;
807 #ifdef MUSE_TTRACE_LOG
808 trace_begin("MUSE:gst_init");
811 gst_param_cnt = ms_config_get_gst_param_cnt();
814 argv = g_malloc0(sizeof(gchar *) * (gst_param_cnt + 1));
816 argv[argc++] = (gchar *)cmd[0];
817 for (; argc <= gst_param_cnt; argc++) {
818 argv[argc] = ms_config_get_gst_param_str(argc - 1);
819 LOGI("%d %s", argc, argv[argc]);
822 /* initializing gstreamer */
823 ret = gst_init_check(&argc, &argv, &err);
825 LOGE("Could not initialize GStreamer: %s ", err ? err->message : "unknown error occurred");
830 LOGI("gst_init_check is completed");
835 LOGI("complete to initialize gstreamer");
837 #ifdef MUSE_TTRACE_LOG
842 void ms_gst_preload_plugin(void)
845 char *saveptr = NULL;
846 char plugin_path[128];
847 const char *delimeters = " ,";
848 gchar *gst_preload_plugins = g_strdup(ms_config_get_gst_preload_plugins());
849 GstPlugin *plugin = NULL;
851 muse_return_if_fail(gst_preload_plugins);
853 LOGI("preload plugins [%s]", gst_preload_plugins);
855 token = strtok_r(gst_preload_plugins, delimeters, &saveptr);
857 snprintf(plugin_path, sizeof(plugin_path), "%s/gstreamer-1.0/libgst%s.so", LIBDIR, token);
859 LOGI(" plugin path : %s", plugin_path);
861 plugin = gst_plugin_load_file(plugin_path, NULL);
863 gst_object_unref(plugin);
865 LOGW("failed to load plugin [%s]", plugin_path);
867 token = strtok_r(NULL, delimeters, &saveptr);
870 g_free(gst_preload_plugins);
875 int ms_pidfile_create(const char *path, pid_t pid)
879 char pid_buf[MUSE_MSG_LEN] = {'\0',};
880 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
882 muse_return_val_if_fail(path, MM_ERROR_INVALID_ARGUMENT);
883 muse_core_remove_symlink(path);
884 fd = open(path, O_WRONLY | O_CREAT, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
886 if (!muse_core_fd_is_valid(fd)) {
887 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
888 LOGE("Fail to open pidfile [%s] : %s", path, err_msg);
889 return MM_ERROR_FILE_NOT_FOUND;
892 lock.l_type = F_WRLCK;
894 lock.l_whence = SEEK_SET;
897 if (fcntl(fd, F_SETLK, &lock) < 0) {
898 if (errno != EACCES && errno != EAGAIN) {
899 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
900 LOGE("Fail to lock pidfile [%s] : %s", path, err_msg);
902 LOGE("process is already running");
905 return MM_ERROR_FILE_INTERNAL;
908 if (ftruncate(fd, 0) < 0) {
909 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
910 LOGE("Fail to truncate pidfile [%s] : %s", path, err_msg);
912 return MM_ERROR_FILE_INTERNAL;
915 memset(pid_buf, 0, sizeof(pid_buf));
916 snprintf(pid_buf, sizeof(pid_buf), "%u", pid);
918 if (write(fd, pid_buf, strlen(pid_buf)) != (int)strlen(pid_buf)) {
919 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
920 LOGE("Fail to write pid to pidfile [%s] : %s", path, err_msg);
922 return MM_ERROR_FILE_WRITE;
926 return MM_ERROR_NONE;
929 void ms_init(char **argv)
933 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
937 muse_server = g_new0(muse_server_t, 1);
941 muse_server->pid = ms_daemonize(¬ify_fd);
943 if (ms_pidfile_create(MUSE_DEFAULT_PIDFILE, muse_server->pid) != MM_ERROR_NONE)
946 LOGD("MUSE_DEFAULT_PIDFILE(%s) file was created", MUSE_DEFAULT_PIDFILE);
950 muse_return_if_fail(_ms_open_lockfile() == MM_ERROR_NONE);
954 ms_daemonize_complete(notify_fd);
956 #ifdef MUSE_TTRACE_LOG
960 ms_system_subscribe_external_event(muse_server->system);
962 #ifdef MUSE_USE_WATCHDOG
963 if (!ms_watchdog_attach(muse_server->watchdog)) {
964 LOGE("watchdog thread failed");
965 ms_log_process_info(muse_server->pid);
972 #ifdef MUSE_TTRACE_LOG
973 trace_begin("MUSE:preloading module");
975 for (idx = 0; idx < ms_config_get_host_cnt(); idx++) {
976 if (0 == strncmp(ms_config_get_preloaded_value(idx), "yes", strlen("yes") + 1)) {
977 g_module_symbol(ms_module_open(idx), CMD_DISPATCHER, (gpointer *)&cmd_dispatcher);
978 if (cmd_dispatcher && cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE])
979 cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE](NULL);
982 #ifdef MUSE_TTRACE_LOG
986 #ifdef MUSE_TTRACE_LOG
987 trace_begin("MUSE:preloading GST module");
989 ms_gst_preload_plugin();
990 #ifdef MUSE_TTRACE_LOG
994 #ifdef MUSE_GCOV_TEST
995 muse_core_setenv("GCOV_PREFIX", "/tmp", 1);
1001 muse_server_h ms_get_instance(void)
1006 gboolean ms_check_module_idx(int idx)
1008 int module_cnt = ms_config_get_host_cnt();
1010 if (idx < 0 || idx >= module_cnt) {
1011 LOGE("%d error - the number of modules is %d", idx, module_cnt);
1018 ms_module_t *ms_get_module_instance(int idx)
1020 muse_return_val_if_fail(ms_check_module_idx(idx), NULL);
1022 return muse_server->module[idx];
1027 int retval = MUSE_ERR;
1032 muse_return_val_if_fail(muse_server, retval);
1033 muse_return_val_if_fail(muse_server->conf, retval);
1034 muse_return_val_if_fail(muse_server->connection, retval);
1035 muse_return_val_if_fail(muse_server->log, retval);
1036 muse_return_val_if_fail(muse_server->security, retval);
1037 muse_return_val_if_fail(muse_server->watchdog, retval);
1039 ms_recursive_rmdir(MUSE_DATA_ROOT_PATH);
1041 ms_set_state(MUSE_SERVER_STATE_IDLE);
1045 #ifdef MUSE_USE_WATCHDOG
1046 ms_watchdog_detach(muse_server->watchdog);
1048 if (ms_watchdog_deinit(muse_server->watchdog) == MM_ERROR_NONE)
1049 free(muse_server->watchdog);
1051 LOGE("Fail to deinitialize server watchdog");
1054 ms_remove_ready_file();
1056 retval = muse_server->retval;
1057 muse_core_fd_close(muse_server->msg_fd);
1058 muse_core_fd_close(muse_server->data_fd);
1059 for (idx = 0; idx < MUSE_CHANNEL_MAX; idx++) {
1060 if (remove(UDS_files[idx]) == MUSE_ERR)
1061 LOGE("remove %s failed", UDS_files[idx]);
1064 if (remove(MUSE_DEFAULT_PIDFILE) == -1)
1065 LOGE("remove %s failed [errno : %d]", MUSE_DEFAULT_PIDFILE, errno);
1067 for (idx = 0; idx < muse_server->conf->host_cnt; idx++)
1068 ms_module_deinit(muse_server->module[idx]);
1070 ms_security_deinit(muse_server->security);
1071 muse_server->security = NULL;
1073 ms_system_deinit(muse_server->system);
1074 muse_server->system = NULL;
1076 ms_log_deinit(muse_server->log);
1077 muse_server->log = NULL;
1079 ms_config_deinit(muse_server->conf);
1080 muse_server->conf = NULL;
1082 ms_connection_deinit(muse_server->connection);
1083 muse_server->connection = NULL;
1085 muse_core_destroy_fd_table();
1089 g_mutex_clear(&muse_server->state_lock);
1091 g_free(muse_server);
1098 void ms_check_cpu_memory(void)
1100 int used_pss, memory_threshold, cpu_usage;
1101 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
1102 ms_connection_t *connection = NULL;
1104 muse_return_if_fail(muse_server);
1106 connection = muse_server->connection;
1107 muse_return_if_fail(connection);
1109 ms_connection_lock(connection);
1111 if (g_queue_is_empty(connection->instance_q) && ms_is_server_ready()) {
1112 used_pss = ms_system_get_memory_usage(muse_server->pid);
1113 cpu_usage = muse_core_get_process_cpu_usage(muse_server->pid);
1115 LOGW("[%d] Proportional set size %d (KByte) (CPU %d %%)", muse_server->pid, used_pss, cpu_usage);
1116 memory_threshold = ms_config_get_memory_threshold();
1118 if (used_pss >= memory_threshold || cpu_usage >= muse_server->cpu_threshold) {
1119 ms_set_state(MUSE_SERVER_STATE_IDLE);
1120 ms_log_process_info(muse_server->pid);
1122 snprintf(err_msg, sizeof(err_msg), "[Memory Leak] %d >= %d (KByte) [CPU] %d >= %d %%",
1123 used_pss, memory_threshold, cpu_usage, muse_server->cpu_threshold);
1125 LOGE("%s", err_msg);
1126 ms_connection_unlock(connection);
1127 ms_terminate(SIGTERM);
1130 muse_core_remove_all_fd_table();
1132 LOGI("skip cpu memory check due to instance queue length : %d", g_queue_get_length(connection->instance_q));
1135 ms_connection_unlock(connection);
1140 int fd[MUSE_CHANNEL_MAX];
1143 for (i = 0; i < MUSE_CHANNEL_MAX; i++) {
1144 if (ms_config_is_on_demand() && i == MUSE_CHANNEL_MSG)
1145 fd[i] = SD_LISTEN_FDS_START;
1149 if (!muse_core_fd_is_valid(fd[i])) {
1150 LOGE("Failed to create socket server %d", i);
1151 for (j = 0; j < i; j++)
1157 _ms_create_new_server_from_fd(fd, READ | PERSIST);
1164 muse_return_if_fail(muse_server->main_loop);
1166 muse_return_if_fail(g_idle_add_full(G_PRIORITY_HIGH, _ms_idle_cb, NULL, NULL) > 0);
1168 LOGI("g_main_loop_run");
1169 g_main_loop_run(muse_server->main_loop);
1174 void ms_cmd_dispatch(muse_module_h m, muse_module_command_e cmd)
1176 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
1178 if (m->ch[MUSE_CHANNEL_MSG].dll_handle &&
1179 g_module_symbol(m->ch[MUSE_CHANNEL_MSG].dll_handle, CMD_DISPATCHER, (gpointer *)&cmd_dispatcher)) {
1180 if (cmd_dispatcher && cmd_dispatcher[cmd])
1181 cmd_dispatcher[cmd](m);
1185 void ms_terminate(int signo)
1187 muse_return_if_fail(muse_server);
1189 ms_set_state(MUSE_SERVER_STATE_IDLE);
1191 LOGE("send signal %d to process %d", signo, muse_server->pid);
1195 int ms_get_pid(muse_module_h m)
1197 muse_return_val_if_fail(m, MUSE_ERR);
1201 void ms_log_process_info(int pid)
1203 muse_core_log_process_thread_info(pid);
1205 muse_core_log_process_opened_fds(pid);
1207 muse_core_log_process_cpu_memory(pid);
1210 void ms_log_user_group_info(void)
1214 char buffer[MUSE_MSG_MAX_LENGTH];
1215 struct passwd pwbuf;
1216 struct passwd *pwbufp;
1218 struct group *gbufp;
1223 getpwuid_r(uid, &pwbuf, buffer, sizeof(buffer), &pwbufp);
1224 muse_return_if_fail(pwbufp);
1226 getgrgid_r(gid, &gbuf, buffer, sizeof(buffer), &gbufp);
1227 muse_return_if_fail(gbufp);
1229 LOGE("user [%s : %lu] group [%s : %lu]", pwbufp->pw_name, (unsigned long)uid, gbufp->gr_name, (unsigned long)gid);
1232 gboolean ms_is_log_enabled(void)
1234 return ms_config_is_log_enabled();
1237 gboolean ms_init_bufmgr(void)
1241 muse_return_val_if_fail(muse_server, FALSE);
1243 muse_server->bufmgr = tbm_bufmgr_init(-1);
1244 if (!muse_server->bufmgr) {
1245 LOGE("Error - tbm_bufmgr_init");
1246 ms_log_user_group_info();
1250 LOGD("Leave bufmgr: %p", muse_server->bufmgr);
1255 void ms_deinit_bufmgr(void)
1259 muse_return_if_fail(muse_server);
1260 muse_return_if_fail(muse_server->bufmgr);
1262 tbm_bufmgr_deinit(muse_server->bufmgr);
1267 void ms_cmd_dispatch_foreach_func(gpointer data, gpointer user_data)
1269 muse_module_h m = (muse_module_h)data;
1270 ms_cmd_dispatcher_info_t *dispatch = (ms_cmd_dispatcher_info_t *)user_data;
1271 muse_module_command_e cmd;
1272 muse_external_storage_info_t *storage;
1274 muse_return_if_fail(muse_server);
1275 muse_return_if_fail(m);
1276 muse_return_if_fail(dispatch);
1278 cmd = dispatch->cmd;
1280 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED) {
1281 storage = &dispatch->storage;
1282 LOGD("external storage id %d state %d path %s", storage->id, storage->state, storage->path);
1283 muse_server_set_user_data(m, (void *)storage);
1286 ms_cmd_dispatch(m, cmd);
1287 SECURE_LOGI("[%s] module %p (%s)", module_cmd[cmd], m, muse_server->conf->host[m->idx]);
1289 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED)
1290 muse_server_set_user_data(m, NULL);
1293 void ms_set_state(ms_state_e state)
1295 muse_return_if_fail(muse_server);
1297 g_mutex_lock(&muse_server->state_lock);
1298 muse_server->state = state;
1299 g_mutex_unlock(&muse_server->state_lock);
1302 gboolean ms_is_server_ready(void)
1304 muse_return_val_if_fail(muse_server, FALSE);
1306 return muse_server->state == MUSE_SERVER_STATE_READY;
1309 gboolean ms_create_ready_file(void)
1312 #ifndef MUSE_USE_LWIPC
1316 #ifdef MUSE_USE_LWIPC
1319 ms_set_state(MUSE_SERVER_STATE_READY);
1321 if (LwipcEventDone(MUSE_SERVER_READY) < 0) {
1322 LOGE("Fail to send server ready done event");
1326 ready_fd = creat(MUSE_SERVER_READY, 0644);
1327 if (muse_core_fd_is_valid(ready_fd)) {
1328 LOGD("MUSE_SERVER_READY(%s) file was created", MUSE_SERVER_READY);
1331 ms_set_state(MUSE_SERVER_STATE_READY);
1333 LOGE("[%d] Fail to create MUSE_SERVER_READY(%s)", ready_fd, MUSE_SERVER_READY);
1343 void ms_remove_ready_file(void)
1345 #ifdef MUSE_USE_LWIPC
1346 (void)LwipcResetEvent(MUSE_SERVER_READY);
1348 (void)unlink(MUSE_SERVER_READY);
1349 (void)unlink(MUSE_DEFAULT_PIDFILE);
1353 const char *ms_get_command_string(int cmd)
1355 if (cmd == API_CREATE)
1357 else if (cmd == API_DESTROY)
1358 return "disconnect";
1360 LOGE("Invalid value of cmd (%d)", cmd);
1362 return "Invalid value of cmd";