Add request queue and code refactoring for media-controllersubmit/tizen_unified/20170310.011401submit/tizen/20170309.045041accepted/tizen/wearable/20170309.072322accepted/tizen/unified/20170310.075712accepted/tizen/tv/20170309.072310accepted/tizen/mobile/20170309.072252accepted/tizen/ivi/20170309.072337accepted/tizen/common/20170309.175456

 - Add the request queue for thread of media-controller to performance enhancement

 - Add the type of request in message to seperate message in queue

 - Code refactoring
  Using abbreviation for define

Change-Id: Ic6d44e299299a8b47c561d62b5e5e53e753cb8ab
Signed-off-by: jiyong.min <jiyong.min@samsung.com>

11 files changed, 546 insertions, 205 deletions

diff --git a/include/media_controller_private.h b/include/media_controller_private.h
index 38bc3cd..a6e97f8 100755
--- a/include/media_controller_private.h
+++ b/include/media_controller_private.h
@@ -118,8 +118,12 @@ extern "C" {
 * @brief DBus interface type name.
 * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
 */
-#define MC_CLIENT "mediacontroller.client"
-#define MC_SERVER "mediacontroller.server"
+#define MC_CLIENT "mcclient"
+#define MC_SERVER "mcserver"
+
+#define MC_DEFAULT_TYPE 0
+#define MC_CLIENT_TYPE 1
+#define MC_SEVER_TYPE 2
 
 #define MC_DBUS_SIGNAL_NAME_SERVER_STATE			"server_state"
 #define MC_DBUS_SIGNAL_NAME_PLAY_BACK				"playback"
@@ -236,8 +240,8 @@ int mc_ipc_register_listener(GList *manage_list, GDBusConnection *connection, co
 int mc_ipc_unregister_listener(GList *manage_list, GDBusConnection *connection, const char *interface_name, const char *signal_name);
 int mc_ipc_unregister_all_listener(GList *manage_list, GDBusConnection *connection);
 int mc_ipc_send_message(GDBusConnection *connection, const char *dbus_name, const char *interface_name, const char* signal_name, const char* message, int flags);
-int mc_ipc_send_message_to_server(mc_msg_type_e msg_type, const char *request_msg);
-int mc_ipc_service_connect(void);
+int mc_ipc_send_message_to_server(mc_msg_type_e msg_type, const int type, const char *request_msg);
+int mc_ipc_service_connect(const int type);
 
 #ifdef __cplusplus
 }
diff --git a/packaging/capi-media-controller.spec b/packaging/capi-media-controller.spec
index 04e55dd..c98fff6 100755
--- a/packaging/capi-media-controller.spec
+++ b/packaging/capi-media-controller.spec
@@ -1,6 +1,6 @@
 Name:       capi-media-controller
 Summary:    A media controller library in Tizen Native API
-Version:    0.1.31
+Version:    0.1.32
 Release:    1
 Group:      Multimedia/API
 License:    Apache-2.0
diff --git a/src/media_controller_client.c b/src/media_controller_client.c
index 8601ed1..d5f1f46 100755
--- a/src/media_controller_client.c
+++ b/src/media_controller_client.c
@@ -352,7 +352,7 @@ int mc_client_create(mc_client_h *client)
 	mc_retvm_if(client == NULL, MEDIA_CONTROLLER_ERROR_INVALID_PARAMETER, "Handle is NULL");
 
 	/*Try Socket Activation by systemd*/
-	ret = mc_ipc_service_connect();
+	ret = mc_ipc_service_connect(MC_CLIENT_TYPE);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 		mc_error("Failed to get mc_ipc_service_connect [%d]", ret);
 		return ret;
@@ -1043,7 +1043,7 @@ int mc_client_destroy(mc_client_h client)
 		mc_error("Error mc_ipc_unregister_all_listener [%d]", ret);
 
 	/*Send Disconnection Msg to Server*/
-	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_DISCONNECTION, MC_SERVER_DISCONNECTION_MSG);
+	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_DISCONNECTION, MC_CLIENT_TYPE, MC_SERVER_DISCONNECTION_MSG);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE)
 		mc_error("Failed to mc_ipc_send_message_to_server [%d]", ret);
 
diff --git a/src/media_controller_db.c b/src/media_controller_db.c
index add1c66..570cc62 100755
--- a/src/media_controller_db.c
+++ b/src/media_controller_db.c
@@ -62,7 +62,7 @@ static int __mc_db_update_db(void *handle, const char *sql_str)
 
 	mc_retvm_if(!MC_STRING_VALID(sql_str), MEDIA_CONTROLLER_ERROR_INVALID_PARAMETER, "Invalid Query");
 
-	ret = mc_ipc_send_message_to_server(MC_MSG_DB_UPDATE, sql_str);
+	ret = mc_ipc_send_message_to_server(MC_MSG_DB_UPDATE, MC_DEFAULT_TYPE, sql_str);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE)
 		mc_error("mc_ipc_send_message_to_server failed : %d", ret);
 
diff --git a/src/media_controller_ipc.c b/src/media_controller_ipc.c
index 16ad6b1..e34bb29 100755
--- a/src/media_controller_ipc.c
+++ b/src/media_controller_ipc.c
@@ -25,10 +25,10 @@
 #define MC_SVC_NAME "mediacontroller"
 
 /* This checks if service daemon is running */
-static int __is_service_activated()
+static int __is_service_activated(const int type)
 {
-	int  ret = MEDIA_CONTROLLER_ERROR_NONE;
-	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_CONNECTION, MC_SERVER_CONNECTION_MSG);
+	int ret = MEDIA_CONTROLLER_ERROR_NONE;
+	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_CONNECTION, type, MC_SERVER_CONNECTION_MSG);
 
 	return ret;
 }
@@ -284,7 +284,7 @@ int mc_ipc_send_message(GDBusConnection *connection, const char *dbus_name, cons
 	return MEDIA_CONTROLLER_ERROR_NONE;
 }
 
-int mc_ipc_send_message_to_server(mc_msg_type_e msg_type, const char *request_msg)
+int mc_ipc_send_message_to_server(mc_msg_type_e msg_type, const int type, const char *request_msg)
 {
 	int ret = MEDIA_CONTROLLER_ERROR_NONE;
 	int request_msg_size = 0;
@@ -304,10 +304,13 @@ int mc_ipc_send_message_to_server(mc_msg_type_e msg_type, const char *request_ms
 		return MEDIA_CONTROLLER_ERROR_INVALID_PARAMETER;
 	}
 
+	mc_error("type [%d], message [%s]", type, request_msg);
+
 	mc_comm_msg_s send_msg;
 	memset((void *)&send_msg, 0, sizeof(mc_comm_msg_s));
 
 	send_msg.msg_type = msg_type;
+	send_msg.type = type;
 	send_msg.pid = getpid();
 	send_msg.uid = getuid();
 	send_msg.msg_size = request_msg_size;
@@ -378,7 +381,7 @@ RETRY:
 	return ret;
 }
 
-int mc_ipc_service_connect(void)
+int mc_ipc_service_connect(const int type)
 {
 	int ret = MEDIA_CONTROLLER_ERROR_NONE;
 	int sockfd = -1;
@@ -386,7 +389,7 @@ int mc_ipc_service_connect(void)
 	struct sockaddr_un serv_addr;
 	unsigned int retrycount = 0;
 
-	ret = __is_service_activated();
+	ret = __is_service_activated(type);
 
 	if (ret == MEDIA_CONTROLLER_ERROR_NONE) {
 		mc_debug("service is already running!");
@@ -418,7 +421,7 @@ int mc_ipc_service_connect(void)
 
 	mc_ipc_delete_client_socket(&sock_info);
 
-	ret = __is_service_activated();
+	ret = __is_service_activated(type);
 	if (ret == MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED) {
 		mc_error("Permission deny!");
 		return ret;
@@ -426,7 +429,7 @@ int mc_ipc_service_connect(void)
 	while ((ret != MEDIA_CONTROLLER_ERROR_NONE) && (retrycount++ < MAX_WAIT_COUNT)) {
 		MC_MILLISEC_SLEEP(200);
 		mc_error("[No-Error] retry count [%d]", retrycount);
-		ret = __is_service_activated();
+		ret = __is_service_activated(type);
 		if (ret == MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED) {
 			mc_error("Permission deny!");
 			return ret;
diff --git a/src/media_controller_server.c b/src/media_controller_server.c
index 916c202..b35e579 100755
--- a/src/media_controller_server.c
+++ b/src/media_controller_server.c
@@ -104,18 +104,7 @@ static int __mc_server_destoy(media_controller_server_s *mc_server)
 	MC_SAFE_FREE(mc_server->server_name);
 
 	if (mc_server->metadata) {
-		MC_SAFE_FREE(mc_server->metadata->title);
-		MC_SAFE_FREE(mc_server->metadata->artist);
-		MC_SAFE_FREE(mc_server->metadata->album);
-		MC_SAFE_FREE(mc_server->metadata->author);
-		MC_SAFE_FREE(mc_server->metadata->genre);
-		MC_SAFE_FREE(mc_server->metadata->duration);
-		MC_SAFE_FREE(mc_server->metadata->date);
-		MC_SAFE_FREE(mc_server->metadata->copyright);
-		MC_SAFE_FREE(mc_server->metadata->description);
-		MC_SAFE_FREE(mc_server->metadata->track_num);
-		MC_SAFE_FREE(mc_server->metadata->picture);
-		MC_SAFE_FREE(mc_server->metadata);
+		mc_client_destroy_metadata(mc_server->metadata);
 	}
 
 	MC_SAFE_FREE(mc_server);
@@ -564,7 +553,7 @@ int mc_server_create(mc_server_h *server)
 	mc_retvm_if(server == NULL, MEDIA_CONTROLLER_ERROR_INVALID_PARAMETER, "Handle is null");
 
 	/*Try Socket Activation by systemd*/
-	ret = mc_ipc_service_connect();
+	ret = mc_ipc_service_connect(MC_SEVER_TYPE);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 		mc_error("Failed to get mc_ipc_service_connect [%d]", ret);
 		return ret;
@@ -665,7 +654,7 @@ int mc_server_destroy(mc_server_h server)
 		mc_error("Error __mc_server_send_message [%d]", ret);
 
 	/*Send Disconnection Msg to Server*/
-	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_DISCONNECTION, MC_SERVER_DISCONNECTION_MSG);
+	ret = mc_ipc_send_message_to_server(MC_MSG_SERVER_DISCONNECTION, MC_SEVER_TYPE, MC_SERVER_DISCONNECTION_MSG);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE)
 		mc_error("Failed to mc_ipc_send_message_to_server [%d]", ret);
 
diff --git a/src/media_controller_util.c b/src/media_controller_util.c
index f6c6762..1919a58 100755
--- a/src/media_controller_util.c
+++ b/src/media_controller_util.c
@@ -126,7 +126,7 @@ int mc_util_set_command_availabe(const char *name, const char *command_type, con
 	else
 		message = g_strdup_printf("%s%s%s", name, command_type, command);
 
-	ret = mc_ipc_send_message_to_server(MC_MSG_CLIENT_SET, message);
+	ret = mc_ipc_send_message_to_server(MC_MSG_CLIENT_SET, MC_DEFAULT_TYPE, message);
 
 	MC_SAFE_G_FREE(message);
 
@@ -148,7 +148,7 @@ int mc_util_get_command_availabe(const char *name, const char *command_type, con
 	else
 		message = g_strdup_printf("%s%s%s", name, command_type, command);
 
-	ret = mc_ipc_send_message_to_server(MC_MSG_CLIENT_GET, message);
+	ret = mc_ipc_send_message_to_server(MC_MSG_CLIENT_GET, MC_DEFAULT_TYPE, message);
 
 	MC_SAFE_G_FREE(message);
 
diff --git a/svc/daemon/media_controller_main.c b/svc/daemon/media_controller_main.c
index f71cf8c..f561837 100644..100755
--- a/svc/daemon/media_controller_main.c
+++ b/svc/daemon/media_controller_main.c
@@ -14,6 +14,9 @@
 * limitations under the License.
 */
 
+#include <sys/stat.h>
+#include <systemd/sd-daemon.h>
+
 #include "media_controller_private.h"
 #include "../media_controller_socket.h"
 #include "../media_controller_svc.h"
@@ -65,6 +68,24 @@ void __mc_main_destroy_timer()
 	g_source_destroy(g_main_context_find_source_by_id(g_main_context_get_thread_default(), g_mc_timer_id));
 }
 
+static int __mc_main_create_socket_activation(void)
+{
+	int fd = -1;
+	int listen_fds;
+
+	listen_fds = sd_listen_fds(0);
+	if (listen_fds == 1) {
+		fd = SD_LISTEN_FDS_START;
+		return fd;
+	} else if (listen_fds > 1) {
+		mc_error("Too many file descriptors received.");
+		return -1;
+	} else {
+		mc_error("There is no socket stream");
+		return -1;
+	}
+}
+
 int main(int argc, char **argv)
 {
 	GThread *svc_thread = NULL;
@@ -81,7 +102,7 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
-	fd = mc_create_socket_activation();
+	fd = __mc_main_create_socket_activation();
 	if (fd < 0) {
 		mc_error("Failed to socekt creation");
 	} else {
diff --git a/svc/media_controller_socket.h b/svc/media_controller_socket.h
index 2a5bba1..fb86a61 100644..100755
--- a/svc/media_controller_socket.h
+++ b/svc/media_controller_socket.h
@@ -56,6 +56,7 @@ typedef struct {
 
 typedef struct {
 	mc_msg_type_e msg_type;
+	int type;
 	int pid;
 	uid_t uid;
 	int result;
diff --git a/svc/media_controller_svc.c b/svc/media_controller_svc.c
index 52f4393..c987c8b 100755
--- a/svc/media_controller_svc.c
+++ b/svc/media_controller_svc.c
@@ -25,8 +25,22 @@
 #include "media_controller_db_util.h"
 #include "media_controller_cynara.h"
 
+#define MAX_MC_REQUEST 1000
+
 static GMainLoop *g_mc_svc_mainloop = NULL;
 static int g_connection_cnt = -1;
+static int g_queue_work = 0;
+
+typedef struct {
+	int client_sock;
+	int permission;
+	mc_comm_msg_s *req_msg;
+} mc_service_request;
+
+typedef struct {
+	mc_comm_msg_s *message;
+	unsigned int result;
+} mc_list_user_data;
 
 static int __mc_sys_get_uid(uid_t *uid)
 {
@@ -42,49 +56,437 @@ static int __mc_sys_get_uid(uid_t *uid)
 	return users;
 }
 
-static int __create_socket_activation(void)
+static void __mc_destroy_queue(gpointer data)
+{
+	mc_service_request *req = (mc_service_request *)data;
+	if (req != NULL) {
+//		MC_SAFE_FREE(req->creds.uid);
+//		MC_SAFE_FREE(req->creds.smack);
+		MC_SAFE_FREE(req->req_msg);
+		MC_SAFE_FREE(req);
+	}
+}
+
+static void __mc_destroy_data_list(gpointer data)
+{
+	char *_ptr = (char *)data;
+	MC_SAFE_FREE(_ptr);
+}
+
+static void __mc_destroy_connected_list(gpointer data)
+{
+	mc_list_data_set_t *_ptr = (mc_list_data_set_t *)data;
+	if (_ptr == NULL) {
+		mc_error("invalid parameter");
+		return;
+	}
+	if (_ptr->s_data != NULL) {
+		g_list_free_full(_ptr->s_data, __mc_destroy_data_list);
+		_ptr->s_data = NULL;
+	}
+	MC_SAFE_FREE(_ptr);
+}
+
+static int __mc_create_request_queue(mc_manage_queue_t **data)
 {
-	int fd = -1;
-	int listen_fds;
-
-	listen_fds = sd_listen_fds(0);
-	if (listen_fds == 1) {
-		fd = SD_LISTEN_FDS_START;
-		return fd;
-	} else if (listen_fds > 1) {
-		mc_error("Too many file descriptors received.");
+	mc_manage_queue_t *_request = (mc_manage_queue_t *)calloc(1, sizeof(mc_manage_queue_t));
+	if (_request == NULL) {
+		mc_error("Failed to create queue manager");
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+	}
+	_request->queue = g_queue_new();
+	if (_request->queue == NULL) {
+		mc_error("Failed to create new queue");
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+	}
+	*data = _request;
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static void __mc_destroy_request_queue(mc_manage_queue_t *data)
+{
+	if (data == NULL) {
+		mc_error("invalid parameter");
+		return;
+	}
+	if (data->queue != NULL) {
+		g_queue_free_full(data->queue, __mc_destroy_queue);
+		data->queue = NULL;
+	}
+	if (data->source != NULL) {
+		g_source_unref(data->source);
+		data->source = NULL;
+	}
+	MC_SAFE_FREE(data);
+}
+
+static void __mc_set_data(gpointer data, gpointer user_data)
+{
+	mc_list_data_set_t *_data = (mc_list_data_set_t *)data;
+	mc_comm_msg_s *_user_data = (mc_comm_msg_s *)user_data;
+	char *_set_data = strdup(_user_data->msg);
+	if (_data->pid == _user_data->pid)
+		_data->s_data = g_list_append(_data->s_data, _set_data);
+}
+
+static void __mc_get_data(gpointer data, gpointer user_data)
+{
+	mc_list_data_set_t *_data = (mc_list_data_set_t *)data;
+	mc_list_user_data *_user_data = (mc_list_user_data *)user_data;
+	mc_comm_msg_s *_message = (mc_comm_msg_s *)_user_data->message;
+	if (_data->pid == _message->pid) {
+		if (_data->s_data != NULL) {
+			unsigned int i = 0;
+			unsigned int length_of_list = g_list_length(_data->s_data);
+			char *value = NULL;
+			for (i = 0; i < length_of_list; i++) {
+				value = (char *)g_list_nth_data(_data->s_data, i);
+				if ((value != NULL) && (strlen(value) == _message->msg_size)) {
+					if (strncmp(value, _message->msg, _message->msg_size) == 0) {
+						_data->s_data = g_list_remove(_data->s_data, value);
+						MC_SAFE_FREE(value);
+						_user_data->result++;
+					}
+				}
+			}
+			if (g_list_length(_data->s_data) == 0)
+				_data->s_data = NULL;
+		}
+	}
+}
+
+static int _mc_service_init(mc_service_t **data)
+{
+	int res = MEDIA_CONTROLLER_ERROR_NONE;
+	mc_service_t *_service_data = (mc_service_t *)calloc(1, sizeof(mc_service_t));
+	if (_service_data == NULL) {
+		mc_error("Failed to allocate service data");
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+	}
+	res = __mc_create_request_queue(&(_service_data->request));
+	if (res != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("Failed to create queue data");
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+	}
+	*data = _service_data;
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static void _mc_service_deinit(mc_service_t *data)
+{
+	if (data != NULL) {
+		if (data->request != NULL)
+			__mc_destroy_request_queue(data->request);
+		if (data->connected != NULL)
+			g_list_free_full(data->connected, __mc_destroy_connected_list);
+		MC_SAFE_FREE(data);
+	}
+}
+
+static int _mc_service_reset_db(uid_t uid)
+{
+	int res = MEDIA_CONTROLLER_ERROR_NONE;
+	void *db_handle = NULL;
+
+	/* Connect media controller DB*/
+	res = mc_db_util_connect(&db_handle, uid);
+	if (res != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("Failed to connect DB");
+		return FALSE;
+	}
+	
+	/* Destroy tables */
+	res = mc_db_util_delete_whole_server_tables(db_handle);
+	if (res != MEDIA_CONTROLLER_ERROR_NONE)
+		mc_error("mc_db_util_delete_whole_server_tables failed [%d]", res);
+
+	/* Create tables */
+	res = mc_db_util_create_tables(db_handle);
+	if (res != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("mc_db_util_create_tables failed [%d]", res);
+		return res;
+	}
+
+	/* Disconnect media controller DB*/
+	res = mc_db_util_disconnect(db_handle);
+	if (res != MEDIA_CONTROLLER_ERROR_NONE)
+		mc_error("Failed to disconnect DB");
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static gboolean _mc_service_is_valid_queue(mc_service_t *data)
+{
+	if ((data == NULL) || (data->request) == NULL || (data->request->queue == NULL))
+		return FALSE;
+	return TRUE;
+}
+
+static int _mc_service_get_list_index(GList *list, int pid, int type)
+{
+	unsigned int length_of_list = 0;
+	unsigned int i;
+	mc_list_data_set_t *ptr = NULL;
+
+	if (list == NULL)
 		return -1;
+
+	length_of_list = (unsigned int)g_list_length(list);
+	for (i = 0; i < length_of_list; i++) {
+		ptr = g_list_nth_data(list, i);
+		if (ptr == NULL)
+			return -1;
+		if (ptr->pid == pid) {
+			if (type == MC_DEFAULT_TYPE)
+				return i;
+			if (ptr->type == type)
+				return i;
+		}
+	}
+	return -1;
+}
+
+static gboolean _mc_service_is_exist_pid(GList *list, int pid, int type)
+{
+	int res = _mc_service_get_list_index(list, pid, type);
+
+	return (res == -1) ? FALSE : TRUE;
+}
+
+static gboolean _mc_service_is_valid_connection(GList *connected_list, mc_comm_msg_s *request_msg)
+{
+	if (request_msg->msg_type != MC_MSG_SERVER_CONNECTION) {
+		if (connected_list == NULL)
+			return FALSE;
+		if (!_mc_service_is_exist_pid(connected_list, request_msg->pid, request_msg->type))
+			return FALSE;
+	}
+	return TRUE;
+}
+
+static int _mc_service_add_connection(GList **connected_list, mc_comm_msg_s *request_msg)
+{
+	mc_debug_fenter();
+	mc_list_data_set_t *data = (mc_list_data_set_t *)calloc(1, sizeof(mc_list_data_set_t));
+	if (data == NULL) {
+		mc_error("memory allocation is failed");
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+	}
+
+	if (*connected_list != NULL && _mc_service_is_exist_pid(*connected_list, request_msg->pid, request_msg->type)) {
+		mc_error("[No-error] connected but do not increase counter [%d]", g_connection_cnt);
+		return MEDIA_CONTROLLER_ERROR_NONE;
+	}
+	data->pid = request_msg->pid;
+	data->type = request_msg->type;
+	*connected_list = g_list_append(*connected_list, data);
+
+	if (g_connection_cnt == -1)
+		g_connection_cnt = 1;
+	else
+		g_connection_cnt++;
+
+	mc_error("[No-error] increased connection count [%d]", g_connection_cnt);
+	mc_debug_fleave();
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static int _mc_service_remove_connection(GList **connected_list, mc_comm_msg_s *request_msg)
+{
+	mc_debug_fenter();
+
+	int idx = _mc_service_get_list_index(*connected_list, request_msg->pid, request_msg->type);
+	if (idx == -1) {
+		mc_error("node is null, it is already disconnected!");
+		return MEDIA_CONTROLLER_ERROR_NONE;
+	}
+	mc_error("[No-error] idx [%d]", idx);
+	mc_list_data_set_t *data = g_list_nth_data(*connected_list, idx);
+	if (data != NULL) {
+		mc_error("[No-error] idx [%p]", data);
+		*connected_list = g_list_remove(*connected_list, data);
+		if (data->s_data != NULL) {
+			mc_error("[No-error] s_data [%p], length [%d]", data->s_data, g_list_length(data->s_data));
+			g_list_free_full(data->s_data, __mc_destroy_data_list);
+		}
+		mc_error("[No-error] data set  will be free");
+		MC_SAFE_FREE(data);
+	}
+
+	g_connection_cnt--;
+	mc_error("[No-error] decreased connection count [%d]", g_connection_cnt);
+	mc_debug_fleave();
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static int _mc_service_set_data(GList **connected_list, mc_comm_msg_s *request_msg)
+{
+	g_list_foreach(*connected_list, __mc_set_data, request_msg);
+
+	return MEDIA_CONTROLLER_ERROR_NONE;
+}
+
+static int _mc_service_get_data(GList **connected_list, mc_comm_msg_s *request_msg)
+{
+	mc_list_user_data *user_data = calloc(1, sizeof(mc_list_user_data));
+	if (user_data == NULL)
+		return MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+
+	user_data->message = request_msg;
+	user_data->result = 0;
+
+	g_list_foreach(*connected_list, __mc_get_data, user_data);
+
+	mc_debug("user_data->result : %d", user_data->result);
+	if (user_data->result > 0) {
+		MC_SAFE_FREE(user_data);
+		return MEDIA_CONTROLLER_ERROR_NONE;
 	} else {
-		mc_error("There is no socket stream");
-		return -1;
+		MC_SAFE_FREE(user_data);
+		return MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED;
 	}
 }
 
-static void _mc_svc_destroy_data(gpointer data)
+gboolean _mc_service_process(gpointer data)
 {
-	mc_svc_list_t *svc_data = (mc_svc_list_t *)data;
+	int res = MEDIA_CONTROLLER_ERROR_NONE;
+	int length_of_queue = 0;
+	int send_msg = MEDIA_CONTROLLER_ERROR_NONE;
+	mc_service_t *_service_data = (mc_service_t*)data;
+
+	if (_service_data == NULL) {
+		mc_debug("invalid service_data");
+		return FALSE;
+	}
+
+	if (_mc_service_is_valid_queue(_service_data) == FALSE) {
+		mc_debug("invalid queue");
+		return FALSE;
+	}
+	GQueue *request_queue = _service_data->request->queue;
+	length_of_queue = g_queue_get_length(request_queue);
+
+	mc_debug("Queue Length : %d", length_of_queue);
+
+	if (length_of_queue <= 0) {
+		mc_debug("There is no request job in the queue");
+		g_queue_work = 0;
+		return FALSE;
+	}
 
-	if (svc_data != NULL) {
-		MC_SAFE_FREE(svc_data->data);
-		MC_SAFE_FREE(svc_data);
-		svc_data = NULL;
+	mc_service_request *req = NULL;
+	req = (mc_service_request *) g_queue_pop_head(request_queue);
+	if (req == NULL) {
+		mc_error("Failed to get a request job from queue");
+		return TRUE;
+	}
+
+	mc_comm_msg_s *request_msg = req->req_msg;
+	if (request_msg == NULL) {
+		mc_error("Failed to get a request message from req");
+		goto ERROR;
+	}
+
+	if (!_mc_service_is_valid_connection(_service_data->connected, request_msg)) {
+		mc_error("Wrong message");
+		send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+		goto ERROR;
 	}
+
+	if (request_msg->msg_type == MC_MSG_DB_UPDATE) {
+/*		if (req->permission != 2) {
+			mc_error("permission is denied![%d]", res);
+			send_msg = MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED;
+			goto ERROR;
+		}*/
+		char *sql_query = NULL;
+		sql_query = strndup(request_msg->msg, request_msg->msg_size);
+		if (sql_query != NULL) {
+			void* _db_handle;
+			res = mc_db_util_connect(&_db_handle, request_msg->uid);
+			if (res != MEDIA_CONTROLLER_ERROR_NONE)
+				mc_error("mc_db_util_connect error : %d", res);
+
+			res = mc_db_util_update_db(_db_handle, sql_query);
+			if (res != MEDIA_CONTROLLER_ERROR_NONE)
+				mc_error("media_db_update_db error : %d", res);
+
+			mc_db_util_disconnect(_db_handle);
+
+			send_msg = res;
+			MC_SAFE_FREE(sql_query);
+		} else {
+			send_msg = MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+		}
+	} else if (request_msg->msg_type == MC_MSG_CLIENT_SET) {
+		send_msg = _mc_service_set_data(&(_service_data->connected), request_msg);
+	} else if (request_msg->msg_type == MC_MSG_CLIENT_GET) {
+		send_msg = _mc_service_get_data(&(_service_data->connected), request_msg);
+	} else if (request_msg->msg_type == MC_MSG_SERVER_CONNECTION) {
+		if (request_msg->msg_size < strlen(MC_SERVER_CONNECTION_MSG)) {
+			mc_error("Wrong message!");
+			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+			goto ERROR;
+		}
+		if (strncmp(request_msg->msg, MC_SERVER_CONNECTION_MSG, request_msg->msg_size) == 0) {
+			send_msg = _mc_service_add_connection(&(_service_data->connected), request_msg);
+		} else {
+			mc_error("Wrong message!");
+			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+		}
+	} else if (request_msg->msg_type == MC_MSG_SERVER_DISCONNECTION) {
+		if (request_msg->msg_size < strlen(MC_SERVER_DISCONNECTION_MSG)) {
+			mc_error("Wrong message!");
+			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+			goto ERROR;
+		}
+		if (strncmp(request_msg->msg, MC_SERVER_DISCONNECTION_MSG, request_msg->msg_size) == 0) {
+			send_msg = _mc_service_remove_connection(&(_service_data->connected), request_msg);
+		} else {
+			mc_error("Wrong message!");
+			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+		}
+	} else {
+		mc_error("Wrong message type!");
+		send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+	}
+
+ERROR:
+	if (write(req->client_sock, &send_msg, sizeof(send_msg)) != sizeof(send_msg))
+		mc_stderror("send failed");
+	else
+		mc_debug("Sent successfully");
+
+	if (close(req->client_sock) < 0)
+		mc_stderror("close failed");
+
+//	MC_SAFE_FREE(req->creds.uid);
+//	MC_SAFE_FREE(req->creds.smack);
+	MC_SAFE_FREE(req->req_msg);
+	MC_SAFE_FREE(req);
+
+	return TRUE;
 }
 
 gboolean _mc_read_service_request_tcp_socket(GIOChannel *src, GIOCondition condition, gpointer data)
 {
 	int sock = -1;
 	int client_sock = -1;
-	char *sql_query = NULL;
 	mc_comm_msg_s recv_msg;
 	int ret = MEDIA_CONTROLLER_ERROR_NONE;
 	int send_msg = MEDIA_CONTROLLER_ERROR_NONE;
-	int i = 0;
-	mc_svc_data_t *mc_svc_data = (mc_svc_data_t*)data;
-	mc_peer_creds creds = {0, };
+	mc_service_request *req = NULL;
+	mc_service_t *_service_data = (mc_service_t*)data;
+	GQueue *request_queue = _service_data->request->queue;
 
 	mc_debug("mc_read_service_request_tcp_socket is called!!!!!");
 
+	req = (mc_service_request *) calloc(1, sizeof(mc_service_request));
+	if (req == NULL) {
+		mc_error("memory allocation is failed");
+		send_msg = MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+		goto ERROR;
+	}
+
 	sock = g_io_channel_unix_get_fd(src);
 	if (sock < 0) {
 		mc_error("sock fd is invalid!");
@@ -92,135 +494,65 @@ gboolean _mc_read_service_request_tcp_socket(GIOChannel *src, GIOCondition condi
 	}
 
 	/* get client socket fd */
-	ret = mc_ipc_accept_client_tcp(sock, &client_sock);
+	ret = mc_ipc_accept_client_tcp(sock, &(client_sock));
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE)
 		return TRUE;
 
-	memset(&creds, 0, sizeof(mc_peer_creds));
-
-	ret = mc_cynara_receive_untrusted_message(client_sock, &recv_msg, &creds);
+	mc_peer_creds creds;
+	memset(&creds, 0x00, sizeof(mc_peer_creds));
+	req->client_sock = client_sock;
+	ret = mc_cynara_receive_untrusted_message(req->client_sock, &recv_msg, &creds);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 		mc_error("mc_ipc_receive_message_tcp failed [%d]", ret);
 		send_msg = ret;
 		goto ERROR;
 	}
 
-	if (recv_msg.msg_type == MC_MSG_DB_UPDATE) {
-		sql_query = strndup(recv_msg.msg, recv_msg.msg_size);
-		if (sql_query != NULL) {
-			ret = mc_db_util_update_db(mc_svc_data->db_handle, sql_query);
-			if (ret != MEDIA_CONTROLLER_ERROR_NONE)
-				mc_error("media_db_update_db error : %d", ret);
-
-			send_msg = ret;
-			MC_SAFE_FREE(sql_query);
-		} else {
-			send_msg = MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
-		}
-	} else if (recv_msg.msg_type == MC_MSG_CLIENT_SET) {
-		/* check privileage */
+	ret = mc_cynara_check(&creds, MC_SERVER_PRIVILEGE);
+	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("permission is denied![%d]", ret);
 		ret = mc_cynara_check(&creds, MC_CLIENT_PRIVILEGE);
 		if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 			mc_error("permission is denied![%d]", ret);
+
 			send_msg = MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED;
 			goto ERROR;
+		} else {
+			req->permission = 2;
 		}
+	} else {
+		req->permission = 1;
+	}
 
-		MC_SAFE_FREE(creds.uid);
-		MC_SAFE_FREE(creds.smack);
-
-		mc_svc_list_t *set_data = (mc_svc_list_t *)malloc(sizeof(mc_svc_list_t));
-		set_data->pid = recv_msg.pid;
-		set_data->data = strdup(recv_msg.msg);
-		mc_svc_data->mc_svc_list = g_list_append(mc_svc_data->mc_svc_list, set_data);
-	} else if (recv_msg.msg_type == MC_MSG_CLIENT_GET) {
-		send_msg = MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED;
-		/* check privileage */
-		ret = mc_cynara_check(&creds, MC_SERVER_PRIVILEGE);
-		if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
-			mc_error("permission is denied![%d]", ret);
+	if (recv_msg.msg_type >= 0 && recv_msg.msg_type < MC_MSG_MAX) {
+		if (g_queue_get_length(request_queue) >= MAX_MC_REQUEST) {
+			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
 			goto ERROR;
 		}
 
-		MC_SAFE_FREE(creds.uid);
-		MC_SAFE_FREE(creds.smack);
-
-		mc_svc_list_t *set_data = NULL;
-		for (i = 0; i < (int)g_list_length(mc_svc_data->mc_svc_list); i++) {
-			set_data = (mc_svc_list_t *)g_list_nth_data(mc_svc_data->mc_svc_list, i);
-			if (set_data != NULL && set_data->data != NULL && strcmp(set_data->data, recv_msg.msg) == 0) {
-				mc_svc_data->mc_svc_list = g_list_remove(mc_svc_data->mc_svc_list, set_data);
-				MC_SAFE_FREE(set_data->data);
-				MC_SAFE_FREE(set_data);
-				send_msg = MEDIA_CONTROLLER_ERROR_NONE;
-				break;
-			}
-		}
-	} else if (recv_msg.msg_type == MC_MSG_SERVER_CONNECTION) {
-		ret = mc_cynara_check(&creds, MC_CLIENT_PRIVILEGE);
-		if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
-			mc_error("permission is denied![%d]", ret);
-			ret = mc_cynara_check(&creds, MC_SERVER_PRIVILEGE);
-			if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
-				mc_error("permission is denied![%d]", ret);
-
-				send_msg = MEDIA_CONTROLLER_ERROR_PERMISSION_DENIED;
-				goto ERROR;
-			}
-		}
-
-		MC_SAFE_FREE(creds.uid);
-		MC_SAFE_FREE(creds.smack);
-
-		if (recv_msg.msg_size > 0) {
-			if (strncmp(recv_msg.msg, MC_SERVER_CONNECTION_MSG, recv_msg.msg_size) == 0) {
-				if (g_connection_cnt == -1)
-					g_connection_cnt = 1;
-				else
-					g_connection_cnt++;
-
-				mc_error("[No-error] increased connection count [%d]", g_connection_cnt);
-
-				send_msg = MEDIA_CONTROLLER_ERROR_NONE;
-			} else {
-				mc_error("Wrong message!");
-				send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
-			}
-		} else {
-			mc_error("Wrong message!");
-			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+		req->req_msg = (mc_comm_msg_s *) malloc(sizeof(mc_comm_msg_s));
+		if (req->req_msg == NULL) {
+			send_msg = MEDIA_CONTROLLER_ERROR_OUT_OF_MEMORY;
+			MC_SAFE_FREE(req->req_msg);
+			goto ERROR;
 		}
-	} else if (recv_msg.msg_type == MC_MSG_SERVER_DISCONNECTION) {
-		if (recv_msg.msg_size > 0) {
-			if (strncmp(recv_msg.msg, MC_SERVER_DISCONNECTION_MSG, recv_msg.msg_size) == 0) {
-				g_connection_cnt--;
-				mc_error("[No-error] decreased connection count [%d]", g_connection_cnt);
-
-				/* remove resource for disconnected process */
-				mc_svc_list_t *set_data = NULL;
-				for (i = (int)(g_list_length(mc_svc_data->mc_svc_list)) - 1; i >= 0; i--) {
-					set_data = (mc_svc_list_t *)g_list_nth_data(mc_svc_data->mc_svc_list, i);
-					if ((set_data != NULL) && (set_data->pid == recv_msg.pid)) {
-						mc_svc_data->mc_svc_list = g_list_remove(mc_svc_data->mc_svc_list, set_data);
-						MC_SAFE_FREE(set_data->data);
-						MC_SAFE_FREE(set_data);
-					}
-				}
-
-				send_msg = MEDIA_CONTROLLER_ERROR_NONE;
-			} else {
-				mc_error("Wrong message!");
-				send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
-			}
-		} else {
-			mc_error("Wrong message!");
-			send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
+		memset(req->req_msg, 0x00, sizeof(mc_comm_msg_s));
+		memcpy(req->req_msg, &recv_msg, sizeof(mc_comm_msg_s));
+
+		mc_debug("msg(%d) is queued", req->req_msg->msg_type);
+		g_queue_push_tail(request_queue, (gpointer)req);
+
+		/* push received message to queue */
+		if (g_queue_work == 0) {
+			_service_data->request->source = g_idle_source_new();
+			g_source_set_callback(_service_data->request->source, _mc_service_process, _service_data, NULL);
+			g_source_attach(_service_data->request->source, g_main_context_get_thread_default());
+			g_queue_work = 1;
 		}
-	} else {
-		mc_error("Wrong message type!");
-		send_msg = MEDIA_CONTROLLER_ERROR_INVALID_OPERATION;
 	}
 
+	return TRUE;
+
 ERROR:
 	if (write(client_sock, &send_msg, sizeof(send_msg)) != sizeof(send_msg))
 		mc_stderror("send failed");
@@ -230,17 +562,16 @@ ERROR:
 	if (close(client_sock) < 0)
 		mc_stderror("close failed");
 
+	if (req != NULL) {
+		MC_SAFE_FREE(req->req_msg);
+		MC_SAFE_FREE(req);
+	}
 	MC_SAFE_FREE(creds.uid);
 	MC_SAFE_FREE(creds.smack);
 
 	return TRUE;
 }
 
-int mc_create_socket_activation(void)
-{
-	return __create_socket_activation();
-}
-
 gboolean mc_svc_thread(void *data)
 {
 	int sockfd = -1;
@@ -248,39 +579,32 @@ gboolean mc_svc_thread(void *data)
 	GSource *source = NULL;
 	GIOChannel *channel = NULL;
 	GMainContext *context = NULL;
-	mc_svc_data_t *mc_svc_data = NULL;
+	mc_service_t *mc_service_data = NULL;
 	uid_t uid = DEFAULT_USER_UID;
 
-	mc_svc_data = (mc_svc_data_t *)calloc(1, sizeof(mc_svc_data_t));
-	if (mc_svc_data == NULL) {
-		mc_error("Failed to allocate svc data");
+	/* Init data */
+	ret = _mc_service_init(&mc_service_data);
+	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("Failed to create data");
+		_mc_service_deinit(mc_service_data);
 		return FALSE;
 	}
 
+	/* Get uid for login user */
 	ret = __mc_sys_get_uid(&uid);
 	if (ret < 0) {
 		mc_debug("Failed to get login user (%d)", ret);
-		MC_SAFE_FREE(mc_svc_data);
+		_mc_service_deinit(mc_service_data);
 		return FALSE;
 	} else {
 		mc_debug("%d sys get UID[%d]", ret, uid);
 	}
 
-	/* Connect media controller DB*/
-	if (mc_db_util_connect(&(mc_svc_data->db_handle), uid) != MEDIA_CONTROLLER_ERROR_NONE) {
-		mc_error("Failed to connect DB");
-		MC_SAFE_FREE(mc_svc_data);
-		return FALSE;
-	}
-
-	/* Destroy tables */
-	if (mc_db_util_delete_whole_server_tables(mc_svc_data->db_handle) != MEDIA_CONTROLLER_ERROR_NONE)
-		mc_error("mc_db_util_delete_whole_server_tables failed [%d]", ret);
-
-	/* Create tables */
-	if (mc_db_util_create_tables(mc_svc_data->db_handle) != MEDIA_CONTROLLER_ERROR_NONE) {
-		mc_error("mc_db_util_create_tables failed [%d]", ret);
-		MC_SAFE_FREE(mc_svc_data);
+	/* Reset database */
+	ret = _mc_service_reset_db(uid);
+	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
+		mc_error("Failed to create data");
+		_mc_service_deinit(mc_service_data);
 		return FALSE;
 	}
 
@@ -289,14 +613,14 @@ gboolean mc_svc_thread(void *data)
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 		/* Disconnect DB*/
 		mc_error("Failed to create socket");
-		MC_SAFE_FREE(mc_svc_data);
+		_mc_service_deinit(mc_service_data);
 		return FALSE;
 	}
 
 	ret = mc_cynara_enable_credentials_passing(sockfd);
 	if (ret != MEDIA_CONTROLLER_ERROR_NONE) {
 		mc_error("Failed to append socket options");
-		MC_SAFE_FREE(mc_svc_data);
+		_mc_service_deinit(mc_service_data);
 		close(sockfd);
 		return FALSE;
 	}
@@ -315,7 +639,7 @@ gboolean mc_svc_thread(void *data)
 	source = g_io_create_watch(channel, G_IO_IN);
 
 	/* Set callback to be called when socket is readable */
-	g_source_set_callback(source, (GSourceFunc)_mc_read_service_request_tcp_socket, mc_svc_data, NULL);
+	g_source_set_callback(source, (GSourceFunc)_mc_read_service_request_tcp_socket, mc_service_data, NULL);
 	g_source_attach(source, context);
 
 	g_main_context_push_thread_default(context);
@@ -328,20 +652,14 @@ gboolean mc_svc_thread(void *data)
 
 	mc_debug("*** Media Controller Service thread will be closed ***");
 
+	_mc_service_deinit(mc_service_data);
+
+	/* Free resources */
 	g_io_channel_shutdown(channel, FALSE, NULL);
 	g_io_channel_unref(channel);
 	g_source_unref(source);
 
-	if (mc_svc_data->mc_svc_list != NULL)
-		g_list_free_full(mc_svc_data->mc_svc_list, _mc_svc_destroy_data);
-
-	/* Disconnect media controller DB*/
-	if (mc_db_util_disconnect(mc_svc_data->db_handle) != MEDIA_CONTROLLER_ERROR_NONE)
-		mc_error("Failed to connect DB");
-
-	MC_SAFE_FREE(mc_svc_data);
-
-	/*close socket*/
+	/* close socket */
 	close(sockfd);
 
 	g_main_loop_unref(g_mc_svc_mainloop);
diff --git a/svc/media_controller_svc.h b/svc/media_controller_svc.h
index 709c206..2aa8313 100755
--- a/svc/media_controller_svc.h
+++ b/svc/media_controller_svc.h
@@ -25,15 +25,20 @@ extern "C" {
 
 typedef struct {
 	int pid;
-	char *data;
-} mc_svc_list_t;
+	int type;
+	GList *s_data;
+} mc_list_data_set_t;
 
 typedef struct {
-	void *db_handle;
-	void *mc_svc_list;
-} mc_svc_data_t;
+	GQueue *queue;
+	GSource *source;
+} mc_manage_queue_t;
+
+typedef struct {
+	mc_manage_queue_t *request;
+	GList *connected;
+} mc_service_t;
 
-int mc_create_socket_activation(void);
 gboolean mc_svc_thread(void *data);
 GMainLoop *mc_svc_get_main_loop(void);
 int mc_svc_get_connection_cnt(void);