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 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...");
284 server_sockfd = g_io_channel_unix_get_fd(source);
285 if (!muse_core_fd_is_valid(server_sockfd)) {
286 LOGE("Critical Error : server %d is invalid", server_sockfd);
288 muse_core_dump_fd_state(server_sockfd);
293 client_len = sizeof(client_address);
295 LOGI("[%d] Try to accept...", server_sockfd);
296 client_sockfd = accept(server_sockfd, (struct sockaddr *)&client_address, &client_len);
297 if (!muse_core_fd_is_valid(client_sockfd)) {
298 LOGE("Critical Error : accept %d is invalid", client_sockfd);
299 muse_core_dump_fd_state(client_sockfd);
300 close(server_sockfd);
306 LOGI("server : %d client [%s channel] : %d", server_sockfd, channel_name[channel], client_sockfd);
308 pid = _ms_get_pid(client_sockfd);
310 if (channel == MUSE_CHANNEL_MSG) {
311 m = g_new0(muse_module_t, 1);
312 m->ch[MUSE_CHANNEL_MSG].sock_fd = client_sockfd;
314 g_mutex_init(&m->dispatch_lock);
316 ms_ipc_create_msg_dispatch_worker(m);
319 _ms_get_module_addr(client_sockfd, &module_addr);
321 ms_connection_lock(connection);
323 instance_queue = connection->instance_q;
324 len = g_queue_get_length(instance_queue);
326 m = (muse_module_h)module_addr;
328 for (idx = 0; idx < len; idx++) {
329 peeked_m = (muse_module_h)g_queue_peek_nth(instance_queue, idx);
331 LOGW("[%d] Make sure if the queue length is changed (%d = %d), which means that it was destroyed somewhere",
332 idx, len, g_queue_get_length(instance_queue));
336 if (peeked_m->pid != pid)
341 LOGE("muse-server can't support the error case which there are several modules now");
342 ms_connection_unlock(connection);
346 if (!muse_core_fd_is_valid(peeked_m->ch[MUSE_CHANNEL_DATA].sock_fd))
347 candidate_m = peeked_m;
349 SECURE_LOGW("already paired module %p", peeked_m);
357 if (muse_core_fd_is_valid(m->ch[MUSE_CHANNEL_DATA].sock_fd)) {
358 SECURE_LOGE("[%d] %s pid %d %p you had better check if instance destroy completed properly",
359 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
360 ms_connection_unlock(connection);
364 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
365 SECURE_LOGI("%s (pid %d) module : %p module addr from client : %p",
366 ms_config_get_host_name(m->idx), pid, m, (void *)module_addr);
372 m->ch[MUSE_CHANNEL_DATA].sock_fd = client_sockfd;
373 SECURE_LOGW("[%d] %s pid %d %p restore module address at the only one null data channel",
374 client_sockfd, ms_config_get_host_name(m->idx), pid, m);
377 ms_connection_unlock(connection);
379 ms_ipc_create_data_dispatch_worker(m);
388 close(server_sockfd);
389 close(client_sockfd);
392 if (channel == MUSE_CHANNEL_MSG)
395 muse_core_connection_close(m->ch[MUSE_CHANNEL_MSG].sock_fd);
405 static void _ms_check_idle_state(void)
407 ms_connection_t *connection = NULL;
408 ms_config_t *conf = NULL;
409 struct timeval tv_c, tv_r;
410 int instance_number, timeout;
411 static int period_idx = 1;
413 muse_return_if_fail(muse_server);
414 muse_return_if_fail(muse_server->state == MUSE_SERVER_STATE_READY);
416 connection = muse_server->connection;
417 muse_return_if_fail(connection);
419 conf = muse_server->conf;
420 muse_return_if_fail(conf);
422 gettimeofday(&tv_c, NULL);
423 timersub(&tv_c, &muse_server->tv_s, &tv_r);
425 timeout = (int)tv_r.tv_sec;
427 ms_connection_lock(connection);
429 instance_number = g_queue_get_length(connection->instance_q);
431 if (timeout >= ms_config_get_log_period() * period_idx) {
432 LOGW("total number of modules = %d ( %s)", instance_number, muse_server->instance_pid_info);
436 ms_connection_unlock(connection);
438 if (conf->is_on_demand) {
439 if (instance_number == 0 && timeout >= ms_config_get_max_idle_time()) {
440 LOGE("Timeout exit !!! [Idle time] %d sec", timeout);
441 ms_remove_ready_file();
447 static gpointer _ms_diag_check_idle_state_thread(gpointer data)
449 int idle_state_wait_time = ms_config_get_idle_state_wait_time();
451 muse_return_val_if_fail(muse_server, NULL);
452 muse_return_val_if_fail(idle_state_wait_time > 0, NULL);
454 while (ms_is_server_ready()) {
455 _ms_check_idle_state();
456 sleep(idle_state_wait_time);
462 static gpointer _ms_diag_check_connection_event_thread(gpointer data)
465 ms_diag_msg_t *dm = NULL;
466 muse_return_val_if_fail(muse_server, NULL);
468 d = &muse_server->diag;
470 while (ms_is_server_ready()) {
471 dm = (ms_diag_msg_t *)g_async_queue_pop(d->msg_aq);
475 LOGD("[%p] POP message (thread stop ? %d [%s])", dm, dm->thread_stop, ms_get_command_string(dm->cmd));
477 if (dm->thread_stop) {
482 if (dm->cmd == API_CREATE) {
483 /* can be updated if connection at the next patch */
484 } else if (dm->cmd == API_DESTROY) {
485 ms_check_cpu_memory();
494 static void _ms_lock_state(void)
496 muse_return_if_fail(muse_server);
497 g_mutex_lock(&muse_server->state_lock);
500 static void _ms_unlock_state(void)
502 muse_return_if_fail(muse_server);
503 g_mutex_unlock(&muse_server->state_lock);
506 static void _ms_diag_init(void)
509 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
510 GError *error = NULL;
512 muse_return_if_fail(muse_server);
514 d = &muse_server->diag;
516 d->idle_state_thread = g_thread_try_new("diag_idle_state",
517 _ms_diag_check_idle_state_thread, muse_server->main_loop, &error);
518 if (!d->idle_state_thread) {
519 snprintf(err_msg, sizeof(err_msg), "diag_idle_state_thread creation failed : %s", error->message);
522 ms_log_process_info(muse_server->pid);
525 d->msg_aq = g_async_queue_new_full(g_free);
526 muse_return_if_fail(d->msg_aq);
528 d->conn_event_thread = g_thread_try_new("diag_connection",
529 _ms_diag_check_connection_event_thread, muse_server->main_loop, &error);
530 if (!d->conn_event_thread) {
531 snprintf(err_msg, sizeof(err_msg), "diag_connection_event_thread creation failed : %s", error->message);
534 ms_log_process_info(muse_server->pid);
538 static void _ms_diag_deinit(void)
545 muse_return_if_fail(muse_server);
547 d = &muse_server->diag;
549 dm = g_new0(ms_diag_msg_t, 1);
551 dm->thread_stop = TRUE;
552 LOGI("[%p] g_async_queue_push", dm);
553 g_async_queue_push_front(d->msg_aq, (gpointer)dm);
555 if (d->idle_state_thread) {
556 g_thread_join(d->idle_state_thread);
557 d->idle_state_thread = NULL;
560 if (d->conn_event_thread) {
561 g_thread_join(d->conn_event_thread);
562 d->conn_event_thread = NULL;
565 g_async_queue_unref(d->msg_aq);
569 static gboolean _ms_idle_cb(gpointer user_data)
571 if (!ms_create_ready_file())
572 LOGE("%s file creation is failed", MUSE_SERVER_READY);
576 return G_SOURCE_REMOVE;
579 static void _ms_init(void)
585 muse_server->system = g_new0(ms_system_t, 1);
586 ms_system_init(muse_server->system);
588 muse_server->conf = g_new0(ms_config_t, 1);
589 ms_config_init(muse_server->conf);
591 muse_server->log = g_new0(ms_log_t, 1);
592 ms_log_init(muse_server->log);
594 muse_server->security = g_new0(ms_security_t, 1);
595 ms_security_init(muse_server->security);
597 for (idx = 0; idx < muse_server->conf->host_cnt; idx++) {
598 muse_server->module[idx] = g_new0(ms_module_t, 1);
599 muse_server->module[idx]->idx = idx;
600 ms_module_init(muse_server->module[idx]);
603 #ifdef MUSE_USE_WATCHDOG
604 muse_server->watchdog = g_new0(ms_watchdog_t, 1);
605 if (ms_watchdog_init(muse_server->watchdog) != MM_ERROR_NONE)
606 LOGE("Fail to initialize server watchdog");
609 muse_server->connection = g_new0(ms_connection_t, 1);
610 ms_connection_init(muse_server->connection);
614 g_mutex_init(&muse_server->state_lock);
616 muse_core_create_fd_table();
618 muse_server->cpu_threshold = ms_config_get_cpu_threshold();
620 muse_server->main_loop = g_main_loop_new(NULL, FALSE);
621 muse_return_if_fail(muse_server->main_loop);
626 static int _ms_open_lockfile(void)
628 int fd, already_running;
629 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
630 char *lockfile = NULL;
632 muse_return_val_if_fail(muse_server, MUSE_ERR);
634 lockfile = ms_config_get_lockfile();
635 muse_return_val_if_fail(lockfile, MUSE_ERR);
637 muse_core_remove_symlink((const char *)lockfile);
638 fd = open(lockfile, O_RDONLY);
639 if (fd == -1 && errno != ENOENT) {
640 /* Cannot open file even though file exists. */
641 snprintf(err_msg, sizeof(err_msg), "Cannot open lock file %s", lockfile);
642 LOGE("open failed : %s", err_msg);
644 } else if (fd != -1) {
645 already_running = flock(fd, LOCK_EX | LOCK_NB) == -1;
647 if (already_running) {
648 LOGE("File already locked. There's already a server running");
653 /* Lock file does not exist, or is not locked. Create a new lockfile and lock it. */
654 fd = open(lockfile, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
656 LOGE("dataserver: Cannot create lock file");
660 if (flock(fd, LOCK_EX | LOCK_NB) != 0) {
661 LOGE("Can't lock the lock file \"%s\". " "Is another instance running?", lockfile);
668 return MM_ERROR_NONE;
671 void ms_setup_syslog(void)
673 int flags = LOG_CONS|LOG_NDELAY|LOG_PID;
674 if (isatty(STDOUT_FILENO))
677 openlog("mused", flags, LOG_DAEMON);
678 LOGD("openlog - mused");
681 void ms_fork(int *notify_fd)
685 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
686 char msg[MUSE_MSG_LEN_MAX] = {'\0',};
688 if (pipe(fds) == MUSE_ERR) {
689 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
690 LOGE("Failed to create pipe to get child status: %s", err_msg);
694 if ((pid = fork()) < 0) {
695 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
696 LOGE("Error: fork() failed: %s", err_msg);
698 } else if (pid != 0) {
700 /* Read in a string from the pipe */
701 if (read(fds[0], msg, sizeof(msg)) <= 0) {
702 LOGE("Failed to read from a file descriptor [%d]", fds[0]);
708 /* Parent process closes up output side of pipe */
709 if (!strcmp(msg, MSG_DONE)) {
710 LOGI("Successfully daemonized");
713 LOGE("Daemonizing failed after fork");
716 } else if (pid == 0) {
717 /* Child process closes up input side of pipe */
723 pid_t ms_daemonize(int *notify_fd)
728 muse_return_val_if_fail(notify_fd, MUSE_ERR);
732 if ((pid = setsid()) < 0) {
733 LOGE("create new session");
737 /* change the file mode mask */
741 LOGD("result = %d sid: %d pgid: %d pid: %d ppid: %d", result, (int)getsid(0), (int)getpgid(0), (int)pid, (int)getppid());
743 /* redirect fds to /dev/null */
744 fd = open("/dev/null", O_RDWR);
745 if (!muse_core_fd_is_valid(fd)) {
746 LOGE("Critical Error : %d is invalid", fd);
751 close(STDOUT_FILENO);
752 close(STDERR_FILENO);
754 dup2(fd, STDIN_FILENO);
755 dup2(fd, STDOUT_FILENO);
756 dup2(fd, STDERR_FILENO);
763 void ms_daemonize_complete(int notify_fd)
767 muse_return_if_fail(muse_core_fd_is_valid(notify_fd));
769 #ifdef MUSE_REGISTER_VIP
770 proc_stat_set_vip_process();
773 write(notify_fd, MSG_DONE, strlen(MSG_DONE) + 1);
774 LOGI("[%d] Notify parent process that child initialization is done", notify_fd);
780 void ms_gst_init(char **cmd)
785 gboolean ret = FALSE;
788 #ifdef MUSE_TTRACE_LOG
789 trace_begin("MUSE:gst_init");
792 gst_param_cnt = ms_config_get_gst_param_cnt();
795 argv = g_malloc0(sizeof(gchar *) * (gst_param_cnt + 1));
797 argv[argc++] = (gchar *)cmd[0];
798 for (; argc <= gst_param_cnt; argc++) {
799 argv[argc] = ms_config_get_gst_param_str(argc - 1);
800 LOGI("%d %s", argc, argv[argc]);
803 /* initializing gstreamer */
804 ret = gst_init_check(&argc, &argv, &err);
806 LOGE("Could not initialize GStreamer: %s ", err ? err->message : "unknown error occurred");
811 LOGI("gst_init_check is completed");
816 LOGI("complete to initialize gstreamer");
818 #ifdef MUSE_TTRACE_LOG
823 void ms_gst_preload_plugin(void)
826 char *saveptr = NULL;
827 char plugin_path[128];
828 const char *delimeters = " ,";
829 gchar *gst_preload_plugins = g_strdup(ms_config_get_gst_preload_plugins());
830 GstPlugin *plugin = NULL;
832 muse_return_if_fail(gst_preload_plugins);
834 LOGI("preload plugins [%s]", gst_preload_plugins);
836 token = strtok_r(gst_preload_plugins, delimeters, &saveptr);
838 snprintf(plugin_path, sizeof(plugin_path), "%s/gstreamer-1.0/libgst%s.so", LIBDIR, token);
840 LOGI(" plugin path : %s", plugin_path);
842 plugin = gst_plugin_load_file(plugin_path, NULL);
844 gst_object_unref(plugin);
846 LOGW("failed to load plugin [%s]", plugin_path);
848 token = strtok_r(NULL, delimeters, &saveptr);
851 g_free(gst_preload_plugins);
856 int ms_pidfile_create(const char *path, pid_t pid)
860 char pid_buf[MUSE_MSG_LEN] = {'\0',};
861 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
863 muse_return_val_if_fail(path, MM_ERROR_INVALID_ARGUMENT);
864 muse_core_remove_symlink(path);
865 fd = open(path, O_WRONLY | O_CREAT, (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
867 if (!muse_core_fd_is_valid(fd)) {
868 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
869 LOGE("Fail to open pidfile [%s] : %s", path, err_msg);
870 return MM_ERROR_FILE_NOT_FOUND;
873 lock.l_type = F_WRLCK;
875 lock.l_whence = SEEK_SET;
878 if (fcntl(fd, F_SETLK, &lock) < 0) {
879 if (errno != EACCES && errno != EAGAIN) {
880 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
881 LOGE("Fail to lock pidfile [%s] : %s", path, err_msg);
883 LOGE("process is already running");
886 return MM_ERROR_FILE_INTERNAL;
889 if (ftruncate(fd, 0) < 0) {
890 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
891 LOGE("Fail to truncate pidfile [%s] : %s", path, err_msg);
893 return MM_ERROR_FILE_INTERNAL;
896 memset(pid_buf, 0, sizeof(pid_buf));
897 snprintf(pid_buf, sizeof(pid_buf), "%u", pid);
899 if (write(fd, pid_buf, strlen(pid_buf)) != (int)strlen(pid_buf)) {
900 strerror_r(errno, err_msg, MUSE_MSG_LEN_MAX);
901 LOGE("Fail to write pid to pidfile [%s] : %s", path, err_msg);
903 return MM_ERROR_FILE_WRITE;
907 return MM_ERROR_NONE;
910 void ms_init(char **argv)
914 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
918 muse_server = g_new0(muse_server_t, 1);
922 muse_server->pid = ms_daemonize(¬ify_fd);
924 if (ms_pidfile_create(MUSE_DEFAULT_PIDFILE, muse_server->pid) != MM_ERROR_NONE)
927 LOGD("MUSE_DEFAULT_PIDFILE(%s) file was created", MUSE_DEFAULT_PIDFILE);
931 muse_return_if_fail(_ms_open_lockfile() == MM_ERROR_NONE);
935 ms_daemonize_complete(notify_fd);
937 #ifdef MUSE_TTRACE_LOG
941 ms_system_subscribe_external_event(muse_server->system);
943 #ifdef MUSE_USE_WATCHDOG
944 if (!ms_watchdog_attach(muse_server->watchdog)) {
945 LOGE("watchdog thread failed");
946 ms_log_process_info(muse_server->pid);
953 #ifdef MUSE_TTRACE_LOG
954 trace_begin("MUSE:preloading module");
956 for (idx = 0; idx < ms_config_get_host_cnt(); idx++) {
957 if (0 == strncmp(ms_config_get_preloaded_value(idx), "yes", strlen("yes") + 1)) {
958 g_module_symbol(ms_module_open(idx), CMD_DISPATCHER, (gpointer *)&cmd_dispatcher);
959 if (cmd_dispatcher && cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE])
960 cmd_dispatcher[MUSE_MODULE_COMMAND_INITIALIZE](NULL);
963 #ifdef MUSE_TTRACE_LOG
967 #ifdef MUSE_TTRACE_LOG
968 trace_begin("MUSE:preloading GST module");
970 ms_gst_preload_plugin();
971 #ifdef MUSE_TTRACE_LOG
975 #ifdef MUSE_GCOV_TEST
976 muse_core_setenv("GCOV_PREFIX", "/tmp", 1);
982 muse_server_h ms_get_instance(void)
987 gboolean ms_check_module_idx(int idx)
989 int module_cnt = ms_config_get_host_cnt();
991 if (idx < 0 || idx >= module_cnt) {
992 LOGE("%d error - the number of modules is %d", idx, module_cnt);
999 ms_module_t *ms_get_module_instance(int idx)
1001 muse_return_val_if_fail(ms_check_module_idx(idx), NULL);
1003 return muse_server->module[idx];
1008 int retval = MUSE_ERR;
1013 muse_return_val_if_fail(muse_server, retval);
1014 muse_return_val_if_fail(muse_server->conf, retval);
1015 muse_return_val_if_fail(muse_server->connection, retval);
1016 muse_return_val_if_fail(muse_server->log, retval);
1017 muse_return_val_if_fail(muse_server->security, retval);
1018 muse_return_val_if_fail(muse_server->watchdog, retval);
1020 ms_recursive_rmdir(MUSE_DATA_ROOT_PATH);
1022 ms_set_state(MUSE_SERVER_STATE_IDLE);
1026 #ifdef MUSE_USE_WATCHDOG
1027 ms_watchdog_detach(muse_server->watchdog);
1029 if (ms_watchdog_deinit(muse_server->watchdog) == MM_ERROR_NONE)
1030 free(muse_server->watchdog);
1032 LOGE("Fail to deinitialize server watchdog");
1035 ms_remove_ready_file();
1037 retval = muse_server->retval;
1038 muse_core_fd_close(muse_server->msg_fd);
1039 muse_core_fd_close(muse_server->data_fd);
1040 for (idx = 0; idx < MUSE_CHANNEL_MAX; idx++) {
1041 if (remove(UDS_files[idx]) == MUSE_ERR)
1042 LOGE("remove %s failed", UDS_files[idx]);
1045 if (remove(MUSE_DEFAULT_PIDFILE) == -1)
1046 LOGE("remove %s failed [errno : %d]", MUSE_DEFAULT_PIDFILE, errno);
1048 for (idx = 0; idx < muse_server->conf->host_cnt; idx++)
1049 ms_module_deinit(muse_server->module[idx]);
1051 ms_security_deinit(muse_server->security);
1052 muse_server->security = NULL;
1054 ms_system_deinit(muse_server->system);
1055 muse_server->system = NULL;
1057 ms_log_deinit(muse_server->log);
1058 muse_server->log = NULL;
1060 ms_config_deinit(muse_server->conf);
1061 muse_server->conf = NULL;
1063 ms_connection_deinit(muse_server->connection);
1064 muse_server->connection = NULL;
1066 muse_core_destroy_fd_table();
1070 g_mutex_clear(&muse_server->state_lock);
1072 g_free(muse_server);
1079 void ms_check_cpu_memory(void)
1081 int used_pss, memory_threshold, cpu_usage;
1082 char err_msg[MUSE_MSG_LEN_MAX] = {'\0',};
1083 ms_connection_t *connection = NULL;
1085 muse_return_if_fail(muse_server);
1087 connection = muse_server->connection;
1088 muse_return_if_fail(connection);
1090 ms_connection_lock(connection);
1092 if (g_queue_is_empty(connection->instance_q) && ms_is_server_ready()) {
1093 used_pss = ms_system_get_memory_usage(muse_server->pid);
1094 cpu_usage = muse_core_get_process_cpu_usage(muse_server->pid);
1096 LOGW("[%d] Proportional set size %d (KByte) (CPU %d)", muse_server->pid, used_pss, cpu_usage);
1097 memory_threshold = ms_config_get_memory_threshold();
1099 if (used_pss >= memory_threshold || cpu_usage >= muse_server->cpu_threshold) {
1100 ms_set_state(MUSE_SERVER_STATE_IDLE);
1101 ms_log_process_info(muse_server->pid);
1103 snprintf(err_msg, sizeof(err_msg), "[Memory Leak] %d >= %d (KByte) [CPU] %d >= %d (percent)",
1104 used_pss, memory_threshold, cpu_usage, muse_server->cpu_threshold);
1106 LOGE("%s", err_msg);
1107 ms_connection_unlock(connection);
1108 ms_respawn(SIGTERM);
1111 muse_core_remove_all_fd_table();
1113 LOGI("skip cpu memory check due to instance queue length : %d", g_queue_get_length(connection->instance_q));
1116 ms_connection_unlock(connection);
1119 int ms_kill_thread(int signo)
1121 return syscall(__NR_tkill, syscall(__NR_gettid), signo);
1126 int fd[MUSE_CHANNEL_MAX];
1129 for (i = 0; i < MUSE_CHANNEL_MAX; i++) {
1130 if (ms_config_is_on_demand() && i == MUSE_CHANNEL_MSG)
1131 fd[i] = SD_LISTEN_FDS_START;
1135 if (!muse_core_fd_is_valid(fd[i])) {
1136 LOGE("Failed to create socket server %d", i);
1137 for (j = 0; j < i; j++)
1143 _ms_create_new_server_from_fd(fd, READ | PERSIST);
1150 muse_return_if_fail(muse_server->main_loop);
1152 muse_return_if_fail(g_idle_add_full(G_PRIORITY_HIGH, _ms_idle_cb, NULL, NULL) > 0);
1154 LOGI("g_main_loop_run");
1155 g_main_loop_run(muse_server->main_loop);
1160 void ms_cmd_dispatch(muse_module_h m, muse_module_command_e cmd)
1162 muse_module_cmd_dispatchfunc *cmd_dispatcher = NULL;
1164 if (m->ch[MUSE_CHANNEL_MSG].dll_handle &&
1165 g_module_symbol(m->ch[MUSE_CHANNEL_MSG].dll_handle, CMD_DISPATCHER, (gpointer *)&cmd_dispatcher)) {
1166 if (cmd_dispatcher && cmd_dispatcher[cmd])
1167 cmd_dispatcher[cmd](m);
1171 void ms_respawn(int signo)
1173 pid_t pid = getpid();
1174 LOGE("send %d process signal %d", (int)pid, signo);
1176 muse_return_if_fail(muse_server);
1178 ms_set_state(MUSE_SERVER_STATE_IDLE);
1179 ms_kill_thread(signo);
1182 int ms_get_pid(muse_module_h m)
1184 muse_return_val_if_fail(m, MUSE_ERR);
1188 void ms_log_process_info(int pid)
1190 muse_core_log_process_thread_info(pid);
1192 muse_core_log_process_opened_fds(pid);
1194 muse_core_log_process_cpu_memory(pid);
1197 void ms_log_user_group_info(void)
1201 char buffer[MUSE_MSG_MAX_LENGTH];
1202 struct passwd pwbuf;
1203 struct passwd *pwbufp;
1205 struct group *gbufp;
1210 getpwuid_r(uid, &pwbuf, buffer, sizeof(buffer), &pwbufp);
1211 muse_return_if_fail(pwbufp);
1213 getgrgid_r(gid, &gbuf, buffer, sizeof(buffer), &gbufp);
1214 muse_return_if_fail(gbufp);
1216 LOGE("user [%s : %lu] group [%s : %lu]", pwbufp->pw_name, (unsigned long)uid, gbufp->gr_name, (unsigned long)gid);
1219 gboolean ms_is_log_enabled(void)
1221 return ms_config_is_log_enabled();
1224 gboolean ms_init_bufmgr(void)
1228 muse_return_val_if_fail(muse_server, FALSE);
1230 muse_server->bufmgr = tbm_bufmgr_init(-1);
1231 if (!muse_server->bufmgr) {
1232 LOGE("Error - tbm_bufmgr_init");
1233 ms_log_user_group_info();
1237 LOGD("Leave bufmgr: %p", muse_server->bufmgr);
1242 void ms_deinit_bufmgr(void)
1246 muse_return_if_fail(muse_server);
1247 muse_return_if_fail(muse_server->bufmgr);
1249 tbm_bufmgr_deinit(muse_server->bufmgr);
1254 void ms_cmd_dispatch_foreach_func(gpointer data, gpointer user_data)
1256 muse_module_h m = (muse_module_h)data;
1257 ms_cmd_dispatcher_info_t *dispatch = (ms_cmd_dispatcher_info_t *)user_data;
1258 muse_module_command_e cmd;
1259 muse_external_storage_info_t *storage;
1261 muse_return_if_fail(muse_server);
1262 muse_return_if_fail(m);
1263 muse_return_if_fail(dispatch);
1265 cmd = dispatch->cmd;
1267 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED) {
1268 storage = &dispatch->storage;
1269 LOGD("external storage id %d state %d path %s", storage->id, storage->state, storage->path);
1270 muse_server_set_user_data(m, (void *)storage);
1273 ms_cmd_dispatch(m, cmd);
1274 SECURE_LOGI("[%s] %p (%s)", module_cmd[cmd], m, muse_server->conf->host[m->idx]);
1276 if (cmd == MUSE_MODULE_COMMAND_EXTERNAL_STORAGE_STATE_CHANGED)
1277 muse_server_set_user_data(m, NULL);
1280 void ms_set_state(ms_state_e state)
1282 muse_return_if_fail(muse_server);
1284 g_mutex_lock(&muse_server->state_lock);
1285 muse_server->state = state;
1286 g_mutex_unlock(&muse_server->state_lock);
1289 gboolean ms_is_server_ready(void)
1291 muse_return_val_if_fail(muse_server, FALSE);
1293 return muse_server->state == MUSE_SERVER_STATE_READY;
1296 gboolean ms_create_ready_file(void)
1299 #ifndef MUSE_USE_LWIPC
1303 #ifdef MUSE_USE_LWIPC
1306 ms_set_state(MUSE_SERVER_STATE_READY);
1308 if (LwipcEventDone(MUSE_SERVER_READY) < 0) {
1309 LOGE("Fail to send server ready done event");
1313 ready_fd = creat(MUSE_SERVER_READY, 0644);
1314 if (muse_core_fd_is_valid(ready_fd)) {
1315 LOGD("MUSE_SERVER_READY(%s) file was created", MUSE_SERVER_READY);
1318 ms_set_state(MUSE_SERVER_STATE_READY);
1320 LOGE("[%d] Fail to create MUSE_SERVER_READY(%s)", ready_fd, MUSE_SERVER_READY);
1330 void ms_remove_ready_file(void)
1332 #ifdef MUSE_USE_LWIPC
1333 (void)LwipcResetEvent(MUSE_SERVER_READY);
1335 (void)unlink(MUSE_SERVER_READY);
1336 (void)unlink(MUSE_DEFAULT_PIDFILE);
1340 const char *ms_get_command_string(int cmd)
1342 if (cmd == API_CREATE)
1344 else if (cmd == API_DESTROY)
1345 return "disconnect";
1347 LOGE("Invalid value of cmd (%d)", cmd);
1349 return "Invalid value of cmd";