diff --git a/sdk/example/custom_event_plugin.cpp b/sdk/example/custom_event_plugin.cpp
index 7decbc4..7bf014e 100644
--- a/sdk/example/custom_event_plugin.cpp
+++ b/sdk/example/custom_event_plugin.cpp
@@ -9,17 +9,17 @@ void *custom_decode(const char *payload, uint32_t len, void **pme)
 	return nullptr;
 }
 
-int custom_plugin_entry(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme)
+int custom_plugin_entry(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme)
 {
-	void *info= custom_decode(payload, len, pme);
-	struct session *new_session=session_manager_custom_session_derive(s, _event);
+	struct stellar_session_event_extras *info= (struct stellar_session_event_extras *)custom_decode(payload, len, pme);
+	struct stellar_session *new_session=session_manager_session_derive(s, "CUSTOM_A");
 	session_manager_trigger_event(new_session, SESSION_EVENT_OPENING, info);
 	session_manager_trigger_event(new_session, SESSION_EVENT_META, info);
 	return 0;
 
 }
 
-int custom_event_plugin_entry(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme)
+int custom_event_plugin_entry(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme)
 {
 	return 0;
 
@@ -27,9 +27,12 @@ int custom_event_plugin_entry(const struct session *s, int what, struct packet *
 
 int custom_plugin_init()
 {
-	_event = session_manager_custom_session_event_register("SESSION_TYPE_CUSTOM", (int)(SESSION_EVENT_OPENING|SESSION_EVENT_RAW_PKT|SESSION_EVENT_META|SESSION_EVENT_CLOSING));
-	plugin_session_event_register(SESSION_TYPE_TCP, custom_plugin_entry, nullptr);
-
-	plugin_custom_session_event_register("SESSION_TYPE_CUSTOM", custom_event_plugin_entry, nullptr);
+	plugin_session_event_register("TCP", custom_plugin_entry, nullptr);
+	plugin_session_event_register("CUSTOM_A", custom_event_plugin_entry, nullptr);
 	return 0;
+}
+
+void custom_plugin_destroy()
+{
+	return ;
 }
\ No newline at end of file
diff --git a/sdk/example/http_event_plugin.cpp b/sdk/example/http_event_plugin.cpp
index 98fffd9..e8ac0bb 100644
--- a/sdk/example/http_event_plugin.cpp
+++ b/sdk/example/http_event_plugin.cpp
@@ -5,13 +5,18 @@
 
 
 
-int http_event_plugin_entry(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme)
+int http_event_plugin_entry(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme)
 {
 	return 0;
 }
 
 int http_event_plugin_init()
 {
-	plugin_session_event_register(SESSION_TYPE_HTTP, http_event_plugin_entry, nullptr);
+	plugin_session_event_register("HTTP", http_event_plugin_entry, nullptr);
 	return 0;
+}
+
+void http_event_plugin_destroy()
+{
+	return ;
 }
\ No newline at end of file
diff --git a/sdk/example/plugin.inf b/sdk/example/plugin.inf
deleted file mode 100644
index e69de29..0000000
diff --git a/sdk/example/plugins/custom_event_plugin/custom_event_plugin.inf b/sdk/example/plugins/custom_event_plugin/custom_event_plugin.inf
new file mode 100644
index 0000000..78107e1
--- /dev/null
+++ b/sdk/example/plugins/custom_event_plugin/custom_event_plugin.inf
@@ -0,0 +1,13 @@
+[PLUGINFO]
+INIT_FUNC=custom_plugin_init
+DESTROY_FUNC=custom_plugin_destroy
+LIBARY_PATH=./plugins/custom_event_plugin/custom_event_plugin.so
+
+
+[SESSION_TYPE.TCP]
+SESSION_EVENT_TYPE=ALL
+SESSION_EVENT_CALLBACK=custom_plugin_entry
+
+[SESSION_TYPE.CUSTOM_A]
+SESSION_EVENT_TYPE=ALL
+SESSION_EVENT_CALLBACK=custom_event_plugin_entry
\ No newline at end of file
diff --git a/sdk/example/plugins/http_event_plugin/http_event_plugin.inf b/sdk/example/plugins/http_event_plugin/http_event_plugin.inf
new file mode 100644
index 0000000..62b7a4a
--- /dev/null
+++ b/sdk/example/plugins/http_event_plugin/http_event_plugin.inf
@@ -0,0 +1,9 @@
+[PLUGINFO]
+INIT_FUNC=http_event_plugin_init
+DESTROY_FUNC=http_event_plugin_destroy
+LIBARY_PATH=./plugins/http_event_plugin/http_event_plugin.so
+
+
+[SESSION_TYPE_HTTP]
+SESSION_EVENT_TYPE=ALL
+SESSION_EVENT_CALLBACK=http_event_plugin_entry
\ No newline at end of file
diff --git a/sdk/example/plugins/plugins.inf b/sdk/example/plugins/plugins.inf
new file mode 100644
index 0000000..50e40af
--- /dev/null
+++ b/sdk/example/plugins/plugins.inf
@@ -0,0 +1,2 @@
+./http_event_plugin/http_event_plugin.inf
+./custom_event_plugin/custom_event_plugin.inf
\ No newline at end of file
diff --git a/sdk/include/event.h b/sdk/include/event.h
new file mode 100644
index 0000000..9f374db
--- /dev/null
+++ b/sdk/include/event.h
@@ -0,0 +1,18 @@
+
+enum stellar_event_type
+{
+    STELLAR_SESSION_EVENT,
+};
+
+struct stellar_session_event_data;
+
+struct stellar_event
+{
+    stellar_event_type type;
+    union
+    {
+        struct stellar_session_event_data *session_event_data;
+        void *event_data;
+    };
+};
+
diff --git a/sdk/include/http.h b/sdk/include/http.h
index abef6c7..62b1fbd 100644
--- a/sdk/include/http.h
+++ b/sdk/include/http.h
@@ -3,4 +3,4 @@
 #include "packet.h"
 #include "session.h"
 
-int http_decoder(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme);
+int http_decoder(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme);
diff --git a/sdk/include/packet.h b/sdk/include/packet.h
index 5121457..5e4c102 100644
--- a/sdk/include/packet.h
+++ b/sdk/include/packet.h
@@ -1,4 +1,4 @@
 #pragma once
 
-struct packet;
+struct stellar_packet;
 
diff --git a/sdk/include/plugin.h b/sdk/include/plugin.h
index 10cacd1..e8d0f98 100644
--- a/sdk/include/plugin.h
+++ b/sdk/include/plugin.h
@@ -3,7 +3,9 @@
 #include "session.h"
 #include <time.h>
 
-int plugin_session_event_register(int session_type, fn_session_event_callback cb, void *entry_arg);
-int plugin_session_timer_register(struct session *s, fn_session_timer cb, void *timer_arg, const struct timeval *timeout);
+int plugin_session_event_register(const char *session_name, 
+                                  fn_session_event_callback call_back, 
+                                  const struct timeval *timeout);
 
-int plugin_custom_session_event_register(const char *event_name, fn_session_event_callback cb, void *entry_arg);
+void plugin_session_event_delete(struct stellar_event *ev,
+                                 struct stellar_session *s);
\ No newline at end of file
diff --git a/sdk/include/session.h b/sdk/include/session.h
index 2671589..17bea1d 100644
--- a/sdk/include/session.h
+++ b/sdk/include/session.h
@@ -1,12 +1,12 @@
 #pragma once
 
 #include "packet.h"
+#include "event.h"
 #include <stdint.h>
 
-struct session;
-struct session_event;
+struct stellar_session;
 
-enum session_type
+enum stellar_session_type
 {
 	SESSION_TYPE_CUSTOM,
 	SESSION_TYPE_IP,
@@ -23,7 +23,7 @@ enum session_type
 	SESSION_TYPE_MAX,
 };
 
-enum session_event_type
+enum stellar_session_event_type
 {
 	SESSION_EVENT_OPENING=0x01,
 	SESSION_EVENT_RAW_PKT=0x02,
@@ -32,19 +32,13 @@ enum session_event_type
 	SESSION_EVENT_CLOSING=0x10,
 };
 
+struct stellar_session_event_extras;
 
-typedef int (*fn_session_event_callback)(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme);
-typedef int (*fn_session_timer)(const struct session *s, void **pme);
+typedef int (*fn_session_event_callback)(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme);
 
-void session_manager_trigger_event(struct session *s, session_event_type event, void *event_info);
+void session_manager_trigger_event(struct stellar_session *s, 
+                                   stellar_session_event_type type,
+                                   struct stellar_session_event_extras *info);
 
-
-struct session_event *session_manager_commit(struct packet *p);
-
-struct custom_session_event;
-
-struct custom_session_event *session_manager_custom_session_event_register(const char *event_name, int available_event);
-struct session *session_manager_custom_session_derive(const struct session *cur_session, struct custom_session_event *event);
-
-
-struct session_event *session_manager_fetch_event();
+struct stellar_session *session_manager_session_derive(const struct stellar_session *this_session, 
+                                               const char *new_session_name);
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index b607270..3031933 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,16 +3,16 @@
 #include "plugin_manager.h"
 #include "http.h"
 
-struct packet_io_loop_arg
+struct stellar_event_base_loop_arg
 {
 	struct packet_io_device *dev;
 	int thread_id;
 };
 
-void packet_io_loop(struct packet_io_loop_arg *arg)
+void stellar_event_base_loop(struct stellar_event_base_loop_arg *arg)
 {
-	struct packet *rx_pkt;
-	struct session_event *event;
+	struct stellar_packet *rx_pkt;
+	struct stellar_event *event;
 	while(1)
 	{
 		int fetch_num = packet_io_rx(arg->dev, arg->thread_id, &rx_pkt, 1);
@@ -50,7 +50,7 @@ int main(int argc, char ** argv)
 {
 	//config_manager_init
 
-	session_manager_session_event_register(http_decoder, SESSION_TYPE_HTTP);
+	plugin_session_event_register("HTTP", http_decoder, nullptr);
 	//packet_io_init
 
 	//create_worker_thread
diff --git a/src/packet_io/packet_io.cpp b/src/packet_io/packet_io.cpp
index 43b9e7d..1b786c1 100644
--- a/src/packet_io/packet_io.cpp
+++ b/src/packet_io/packet_io.cpp
@@ -26,12 +26,12 @@ void packet_io_close_device(struct packet_io_device *dev)
 	return;
 }
 
-int packet_io_rx(struct packet_io_device *dev, uint32_t rx_queue_id, struct packet *p[], int nr_p)
+int packet_io_rx(struct packet_io_device *dev, uint32_t rx_queue_id, struct stellar_packet *p[], int nr_p)
 {
 	return 0;
 }
 
-int packet_io_tx(struct packet_io_device *dev, uint32_t rx_queue_id, struct packet *p[], int nr_p)
+int packet_io_tx(struct packet_io_device *dev, uint32_t rx_queue_id, struct stellar_packet *p[], int nr_p)
 {
 	return 0;
 }
\ No newline at end of file
diff --git a/src/packet_io/packet_io.h b/src/packet_io/packet_io.h
index 85cc16f..39414ca 100644
--- a/src/packet_io/packet_io.h
+++ b/src/packet_io/packet_io.h
@@ -19,5 +19,5 @@ void packet_io_destory(struct packet_io_instance *instance);
 struct packet_io_device *packet_io_open_device(struct packet_io_instance *instance, const char *dev_sym, uint32_t nr_rxqueue, uint32_t nr_txqueue);
 void packet_io_close_device(struct packet_io_device *dev);
 
-int packet_io_rx(struct packet_io_device *dev, uint32_t rx_queue_id, struct packet *p[], int nr_p);
-int packet_io_tx(struct packet_io_device *dev, uint32_t rx_queue_id, struct packet *p[], int nr_p);
\ No newline at end of file
+int packet_io_rx(struct packet_io_device *dev, uint32_t rx_queue_id, struct stellar_packet *p[], int nr_p);
+int packet_io_tx(struct packet_io_device *dev, uint32_t rx_queue_id, struct stellar_packet *p[], int nr_p);
\ No newline at end of file
diff --git a/src/packet_io/test/gtest_packet_io.cpp b/src/packet_io/test/gtest_packet_io.cpp
index ff0ea7f..8618e2e 100644
--- a/src/packet_io/test/gtest_packet_io.cpp
+++ b/src/packet_io/test/gtest_packet_io.cpp
@@ -1,6 +1,6 @@
 #include <gtest/gtest.h>
 
-#include "packet_io.h"
+#include "../packet_io.h"
 
 TEST(PACKET_IO_Test, packet_io_create) {
   EXPECT_EQ(packet_io_create(PACKET_IO_PCAP, "TEST"), nullptr);
diff --git a/src/plugin_manager/CMakeLists.txt b/src/plugin_manager/CMakeLists.txt
index 212664d..5850d1f 100644
--- a/src/plugin_manager/CMakeLists.txt
+++ b/src/plugin_manager/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(${CMAKE_SOURCE_DIR}/session_manager/)
 add_library(plugin_manager 
 	    plugin_manager.cpp
-)
\ No newline at end of file
+)
+target_include_directories(plugin_manager PUBLIC ${CMAKE_SOURCE_DIR})
\ No newline at end of file
diff --git a/src/plugin_manager/plugin_manager.cpp b/src/plugin_manager/plugin_manager.cpp
index c5b7fe1..4fe54ce 100644
--- a/src/plugin_manager/plugin_manager.cpp
+++ b/src/plugin_manager/plugin_manager.cpp
@@ -1,13 +1,16 @@
-#include "plugin.h"
+#include "deps/uthash/uthash.h"
+
+#include "sdk/include/session.h"
+
+
 #include "session_manager.h"
 
-#include "utils.h"
-
+#if 0
 struct session_event_callback
 {
 	const char *session_name;
 	fn_session_event_callback callback;
-	TAILQ_ENTRY(session_event_callback) session_event_cb_tq_entries;
+	TAILQ_ENTRY(session_event_callback) entries;
 	UT_hash_handle hh;	
 };
 
@@ -26,9 +29,18 @@ struct plugin_manager
 };
 
 struct plugin_manager g_plug_mgr;
+#endif
 
-void plugin_manager_dispatch(struct session_event *event)
+int plugin_session_event_register(const char *session_name, 
+                                  fn_session_event_callback call_back, 
+                                  const struct timeval *timeout)
 {
+	return 0;
+}
+
+void plugin_manager_dispatch(struct stellar_event *event)
+{
+#if 0
 	struct session *s = container_of(event, struct session, cur_ev);
 	struct session_event_callback_map *t_map;
 	struct session_event_callback *session_ev_cb;
@@ -55,6 +67,6 @@ void plugin_manager_dispatch(struct session_event *event)
 	default:
 		break;
 	}
-
+#endif
 	return;
 }
\ No newline at end of file
diff --git a/src/plugin_manager/plugin_manager.h b/src/plugin_manager/plugin_manager.h
index 6159957..d2b9672 100644
--- a/src/plugin_manager/plugin_manager.h
+++ b/src/plugin_manager/plugin_manager.h
@@ -1,6 +1,25 @@
 
 #pragma once
 
-#include "plugin.h"
+#include <sys/queue.h>
 
-void plugin_manager_dispatch(struct session_event *event);
\ No newline at end of file
+#include "sdk/include/session.h"
+#include "sdk/include/plugin.h"
+
+struct stellar_plugin_ctx
+{
+    void *call_back_arg;
+    const struct timeval timeout;
+    fn_session_event_callback call_back;
+    TAILQ_ENTRY(stellar_plugin_ctx) tqe;
+};
+
+TAILQ_HEAD(stellar_plugin_ctx_list, stellar_plugin_ctx);
+
+struct stellar_plugin_data
+{
+    stellar_plugin_ctx_list plugin_ctx_list;
+};
+
+
+void plugin_manager_dispatch(struct stellar_event *ev);
\ No newline at end of file
diff --git a/src/protocol_decoder/http/CMakeLists.txt b/src/protocol_decoder/http/CMakeLists.txt
index 50ed35d..dd8482f 100644
--- a/src/protocol_decoder/http/CMakeLists.txt
+++ b/src/protocol_decoder/http/CMakeLists.txt
@@ -2,4 +2,5 @@
 
 add_library(http
 	http.cpp
-)
\ No newline at end of file
+)
+target_include_directories(http PUBLIC ${CMAKE_SOURCE_DIR})
\ No newline at end of file
diff --git a/src/protocol_decoder/http/http.cpp b/src/protocol_decoder/http/http.cpp
index e8b19b5..13fd4d6 100644
--- a/src/protocol_decoder/http/http.cpp
+++ b/src/protocol_decoder/http/http.cpp
@@ -1,16 +1,16 @@
 #include "http.h"
 #include "session_manager.h"
 
-int http_decoder(const struct session *s, int what, struct packet *p, const char *payload, uint32_t len, void **pme)
+int http_decoder(const struct stellar_session *s, int what, struct stellar_packet *p, const char *payload, uint32_t len, void **pme)
 {
-	void *info;
-	struct session *new_session=session_manager_session_derive(s, SESSION_TYPE_HTTP);
+	struct stellar_session_event_extras *info;
+	struct stellar_session *new_session=session_manager_session_derive(s, "HTTP");
 	session_manager_trigger_event(new_session, SESSION_EVENT_OPENING, info);
 	session_manager_trigger_event(new_session, SESSION_EVENT_META, info);
 	return 0;
 }
 
-int http_peek(const struct session *s, const char *payload, uint32_t len)
+int http_peek(const struct stellar_session *s, const char *payload, uint32_t len)
 {
 	return 0;
 }
\ No newline at end of file
diff --git a/src/session_manager/CMakeLists.txt b/src/session_manager/CMakeLists.txt
index 23fe595..b78722f 100644
--- a/src/session_manager/CMakeLists.txt
+++ b/src/session_manager/CMakeLists.txt
@@ -1,4 +1,4 @@
-
 add_library(session_manager
 	session_manager.cpp
-)
\ No newline at end of file
+)
+target_include_directories(session_manager PUBLIC ${CMAKE_SOURCE_DIR})
\ No newline at end of file
diff --git a/src/session_manager/session_manager.cpp b/src/session_manager/session_manager.cpp
index a5592c8..10d41bd 100644
--- a/src/session_manager/session_manager.cpp
+++ b/src/session_manager/session_manager.cpp
@@ -2,42 +2,29 @@
 
 struct session_manager
 {
-	struct session **tcp_table, **udp_table;
+	struct stellar_session **tcp_table, **udp_table;
 };
 
-void session_manager_session_event_register(fn_session_event_callback decoder, session_type type)
+void session_manager_trigger_event(struct stellar_session *s, 
+                                   stellar_session_event_type type,
+                                   struct stellar_session_event_extras *info)
 {
 	return;
 }
 
-struct session *session_manager_custom_session_derive(const struct session *cur_session, struct custom_session_event *event)
+struct stellar_session *session_manager_session_derive(const struct stellar_session *this_session, 
+                                               const char *new_session_name)
 {
 	return nullptr;
 }
 
-void session_manager_trigger_event(struct session *s, session_event_type event, void *event_info)
-{
-	return;
-}
-
-
-struct session_event *session_manager_commit(struct packet *p)
+struct stellar_event *session_manager_commit(struct stellar_packet *p)
 {
 	return nullptr;
 };
 
 
-struct custom_session_event *session_manager_custom_session_event_register(const char *event_name, int available_event)
-{
-	return nullptr;
-}
-
-struct session *session_manager_session_derive(const struct session *cur_session, session_type type)
-{
-	return nullptr;
-}
-
-struct session_event *session_manager_fetch_event()
+struct stellar_event *session_manager_fetch_event()
 {
 	return nullptr;
 }
diff --git a/src/session_manager/session_manager.h b/src/session_manager/session_manager.h
index 17f2e0d..3bac9f0 100644
--- a/src/session_manager/session_manager.h
+++ b/src/session_manager/session_manager.h
@@ -1,47 +1,24 @@
 #pragma once
 
-#include "session.h"
-#include "uthash/uthash.h"
+#include "sdk/include/session.h"
 
-#include <sys/queue.h>  /* TAILQ(3) */
+struct stellar_plugin_data;
 
-struct session_data
+struct stellar_session_event_data
 {
-	/* data */
+    struct stellar_session *s;
+    stellar_session_event_type type;
+    long last_active;
+    struct stellar_plugin_data *plugin_data;
 };
 
-enum session_state
+struct stellar_event *session_manager_commit(struct stellar_packet *pkt);
+struct stellar_event *session_manager_fetch_event();
+
+struct stellar_session
 {
-	SESSION_STATE_OPENING,
-	SESSION_STATE_ACTIVE,
-	SESSION_STATE_CLOSING,
-	SESSION_STATE_CLOSED
+    stellar_session_type type;
+    const char *name;
+    void *addr;
+    void *data;
 };
-
-struct session_event
-{
-	enum session_state state;
-	void *cb_pme;
-	fn_session_event_callback callback;
-	TAILQ_ENTRY(session_event) session_event_tq_entries;
-};
-
-TAILQ_HEAD(session_event_list, session_event);
-
-struct session
-{
-	const char *name;
-	enum session_type type;
-	enum session_state state;
-	struct session_data data;
-	struct session_event cur_ev;
-	struct session_event_list ev_list;
-	TAILQ_ENTRY(session) session_tq_entries;
-	UT_hash_handle hh;
-};
-
-
-
-
-void session_manager_session_event_register(fn_session_event_callback session_ev_cb, session_type type);
-struct session *session_manager_session_derive(const struct session *cur_session, session_type type);